Application of wireless LED information publishing technology in human resources services

In small and medium-sized cities, a dedicated information platform is used to collect and organize recruitment information, which is instantly transmitted to receivers distributed in various counties, cities and major universities throughout the city through wireless networks . After processing, the receivers display it on a large LED screen. This method combines on-site recruitment with modern information technology, breaks through the limitations of traditional job fairs, maximizes the scope of information dissemination, and has a great driving effect in improving recruitment success and promoting employment.

1. LED Information Technology Analysis

Since the information input of traditional LED display screens can only be carried out by directly connecting to the computer through a data cable, traditional LED display screens cannot meet the needs of remote information real-time release, and thus cannot build a large-scale networked LED screen information release system. The new LED information release system can effectively solve the problem of remote networking of LED display screens. This type of system is based on GPRS/CDMA wireless network technology, provides a universal LED communication control interface , and realizes large-scale networking of LED display screens. Whether it is an ordinary text bar screen or a large-screen graphic screen, as long as it is connected to an LED wireless transmission terminal, it can immediately break the limitations of traditional LED display screens and become a wireless LED information display screen that can be networked on a large scale. We used this technology to establish a wireless information release system for Jining Talent Market. We set up LED display screens in universities in Jining, and released relevant recruitment information through the talent market background. The system's main control center accurately and instantly released the information to a specified one or more or all LED display screens, so that job seekers can view recruitment information conveniently and quickly. The wireless LED information release system can greatly enhance the flexibility and real-time performance of LED display screens as information display carriers, and play a great role in expanding the application of LED display screens.

2. Features of Wireless LED Information Release System

1. Advancedness. Make full use of advanced technologies such as computer Internet, mobile wireless communication system, LED display control, etc. to design a domestically advanced wireless LED information release system. The wireless LED information release system sends information through the GPRSCDMA wireless network and uses the TCP network transmission protocol. The number of terminals connected to the network is unlimited and can reach tens of thousands. Using the current advanced system software platform and terminal equipment, it can not only meet the needs of wireless LED information networking release, but also support the specific business needs of various related industries.

2. Reliability. Due to the particularity of the use environment of the wireless LED information release system, the system must be relatively stable and reliable. The reliability of this system is mainly reflected in three aspects: First, the reliability of the central system, including the reliability of the hardware system, the reliability of the operating system, database, central service system and other software platforms; second, the reliability of the wireless LED display terminal, which mainly refers to the wireless LED display terminal can work stably and reliably, and the hardware failure rate is low. Third, the communication mechanism is reliable, because the use environment of wireless network communication has its own complex characteristics, and the system communication mechanism must ensure efficient and reliable data transmission.

3. Scalability. The system should have good scalability. When the number of terminals increases, the user range expands, and the system functions increase, it can be upgraded smoothly to protect the investment. At present, the wireless LED information release system can support various existing wireless communication access, GSM communication system, GPRS communication system, CDMA communication system, and realize the grid connection operation of these systems. In the future, by developing and installing the corresponding communication interface protocol, it can realize the access of other future communication systems.

4. Practicality. The operation of the entire system is convenient, simple and efficient. It fully reflects the characteristics of rapid response, and is convenient for operators to process and publish information, and for management to understand various statistical information in a timely manner. Since there is no need to lay optical cables or communication cables, the installation location of the wireless LED display is easy to choose. The product adopts a modular design, which is easy to maintain and repair.

5. Confidentiality. Strict authority management is implemented for the management of the system. Only keys with certain authority can access, monitor, and implement corresponding management and control operations to ensure the security and reliability of the system.

3. Main functions of wireless LED information release system

1. The system supports a maximum of more than 10,000 wireless LED display screens; 2. Communication system support: GPRS communication mode, CDMA communication mode; 3. The system software adopts B/S structure; 4. Supports LED display device information management function; 5. Supports real-time and scheduled text message sending; 6. Functions of adding, deleting, editing and modifying published information; 7. Define different operating users with different operating permissions to achieve user hierarchical management.

IV. Conclusion and social benefit analysis

The implementation of this project will not only bring considerable economic benefits, but also have strong social benefits. It has provided great help to improve the employment rate of the general public, especially the employment of fresh college and technical school graduates and migrant workers. It will help the government solve problems in the short term and provide sufficient first-hand data and analytical decision-making support for the sustainable and stable development of the talent industry in the long term. It is an important measure to achieve the three-level sharing of talent information resources in cities, counties and townships. At the same time, this modern technical means will also support and promote the innovation of the talent service industry and the improvement of service levels.