Akıllı TV'de Wi-Fi Modulünün En Uygun Konumunu Belirlemek İçin Bir Test Yöntemi

Year 2024, Volume: 7 Issue: 2, 98 - 102, 31.12.2024

Barış Özden , Erol Çalik

https://doi.org/10.55581/ejeas.1553672

Abstract

Akıllı LED TV’lerde yaygın olarak kullanılan dahili Wi-Fi modülü, güvenilir kablosuz bağlantıyı sağlamak için en önemli bileşendir. TV kabininde bulunan güç kaynağı ünitesi (PSU), yongada sistem (SoC), LED arka aydınlatma devreleri, HDMI ve USB portları ile dahili hoparlörler gibi çeşitli elektronik bileşenlerin neden olduğu parazitlerin en aza indirilmesi, TV ile erişim noktası arasında sağlam ve kesintisiz bir Wi-Fi bağlantısı sağlamak için kritik öneme sahiptir. Bu çalışma, Wi-Fi modüllerini doğru şekilde konumlandırarak optimum performans ve maksimum verimliliği sağlama konusundaki ayrıntılı ve karşılaştırmalı bir analizi sunmaktadır. Odak noktası, TV kabini içinde sinyal parazitini azaltacak en uygun yeri belirlemektir. Dokuz Android işletim sistem tabanlı LED TV üzerinde gerçekleştirilen deneyler sonucunda, sinyalin en az kesintiye uğradığı alanlar belirlenmiştir. Ayrıca, bu çalışma Wi-Fi modülünün stratejik yerleşimiyle genel bağlantının nasıl optimize edilebileceğini göstermektedir.

Keywords

Wi-Fi Modulü, Anakart, PSU, TCON Kartı, Performans, Karşılaştırma, Televizyon, LVDS Kablosu, Hoparlör

Supporting Institution

Arçelik A.Ş.

Project Number

AR-23-116-2000

A Test Method to Determine the Optimum Position for the Wi-Fi Module in a Smart TV

Abstract

Internal Wi-Fi modules are extensively utilized in Smart LED TV sets, as they are a key component in ensuring reliable wireless connectivity. Interference caused by various electronic components, such as the power supply unit (PSU), system on chip (SoC), LED backlighting circuits, HDMI and USB ports, as well as internal speakers located inside the TV cabinet, needs to be minimized. This minimization is crucial to maintain a robust and uninterrupted Wi-Fi connection between the TV set and the Access Point. This study provides a detailed and comparative analysis of how to properly position Wi-Fi modules for optimal performance and maximum efficiency. The focus is on determining the most suitable location within the TV cabinet to reduce signal interference. Through experiments conducted on nine Android OS-based LED TVs, the areas with minimal signal disruption were identified. Furthermore, the study illustrates how strategic placement of the Wi-Fi module can significantly optimize overall connectivity.

Keywords

Wi-Fi Module, Mainboard, PSU, TCON Board, Performance, Comparison, Television, LVDS Cable, Speaker

Supporting Institution

Arçelik A.Ş.

Project Number

AR-23-116-2000

Thanks

The tests were performed in the Arçelik AŞ. Electronics R&D Performance Test Labs. Therefore, the authors would like to thank Arçelik for the continuous support.

References

• Alam, I., Khusro, S., and Naeem, M. (2017). A review of smart TV: Past, present, and future. In International Conference on Open Source Systems & Technologies (ICOSST) 2017. doi: 10.1109/ICOSST.2017.8279002.
• Mozaffariahrar, E., Theoleyre, F., & Menth, M. (2022). A Survey of Wi-Fi 6: Technologies, Advances, and Challenges, Future Internet, 14(10), 293.
• Noworatzky, D. (2019). Network design strategies for optimal Wi-Fi performance. TeleDynamics Think Tank.
• Haider, Z., Saleem, M., & Jamal, T. (2018). Analysis of interference in wireless networks. arXiv preprint arXiv:1810.13164.
• Aileen, A., Suwardi, A., & Prawiranata, F. (2021). WiFi Signal Strength Degradation Over Different Building Materials. Engineering, Mathematics and Computer Science (EMACS) Journal, 3, 109-113, doi: 10.21512/emacsjournal.v3i3.7455.
• Ofcom. (2019). Wi-Fi Performance Testing of Home Broadband Routers: The Performance of Fixed-Line Broadband Delivered to UK Residential Consumers. Measurement Period: November 2019.
• Ofcom. (2019). UK Home Broadband Performance. Retrieved from: https://www.ofcom.org.uk.
• Mahanti, A., Carlsson, N., Williamson, C., & Arlitt, M. (2010). Ambient Interference Effects in Wi-Fi Networks. Lecture Notes in Computer Science, 6091, 160-173, doi: 10.1007/978-3-642-12963-6_13.
• Lo, E. C. C. (2015). An investigation of the impact of signal strength on Wi-Fi link throughput through propagation measurement. AUT University.
• Cadence PCB Solutions. (2024). PCB Thermal Management Techniques. All About Circuits.
• Mathur, P., & Raman, S. (2020). Electromagnetic interference (EMI): Measurement and reduction techniques. Journal of Electronic Materials, 49, 2975-2998.
• Alper, Ö. Z. E. L., & Döner, M. (2019). A Rule of Thumb to Determine the Location of Wi-Fi Module on Plastic or Metal Chassis. Journal of Scientific Perspectives, 3(1), 47-58.
• MATLAB & Simulink. (n.d.). 802.11ac Receiver Minimum Input Sensitivity Test.
• Rohde & Schwarz. (n.d.). 802.11 Packet Error Rate Testing. Application Note.
• IEEE Standard for Information Technology. (2009). Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 5: Enhancements for Higher Throughput, IEEE Std 802.11n-2009, 29 Oct., doi: 10.1109/IEEESTD.2009.5307322.
• IEEE Standard for Information Technology. (2013). Enhancements for Very High Throughput for Operation in Bands below 6 GHz, IEEE Std 802.11ac-2013, 18 Dec., doi: 10.1109/IEEESTD.2013.6687187.
• MetaGeek. (n.d.). Wi-Fi Signal Strength Basics. Retrieved from: https://www.metageek.com.