وفّر 50٪ من خلال الاشتراك السنوي في مجرة واحصل على تصفح لا محدود لأفضل محتوى عربي على الإنترنت.
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هي تقنية اتصال لاسلكي قصير المدى، تستخدم في تحريض المجال المغناطيسي لتمكين الاتصال بين الأجهزة عندما تتم ملامستها معاً أو عند وضعها على بُعد بضعة سنتيمترات من بعضها بعضاً. يتضمن ذلك مصادقة بطاقات الائتمان، وتمكين الوصول المادي، ونقل الملفات الصغيرة، وإطلاق روابط لاسلكية أكثر قدرة. بشكل عام، فإنها تبني وتوسع عمل النُظم البيئية القائمة والمعايير حول علامات معرف التردد اللاسلكي.
ينقل اتصال المجال القريب البيانات عبر مجالات الراديو الكهرومغناطيسية لتمكين جهازين من التواصل مع بعضهما بعضاً. للعمل، يجب أن يحتوي كلا الجهازين على شرائح اتصال للمجال القريب، حيث تتم المعاملات على مسافة قصيرة جداً، ويجب أن تكون الأجهزة التي تدعم تكنولوجيا اتصالات المجال القريب إما ملامسة فيزيائياً وإما على بُعد بضعة سنتيمترات من بعضها بعضاً حتى يحدث نقل البيانات.
نظراً لأن جهاز الاستقبال يقرأ البيانات فور إرسالها، فإن الاتصالات قريبة المدى تقلل إلى حد كبير من فرصة حدوث خطأ بشري.
تُستخدم هذه التقنية بشكل شائع لدعم أنظمة الدفع غير التلامسية وأجهزة الحوسبة القابلة للارتداء لاسلكياً، وذلك لإنشاء تجربة دفع خالية من الاحتكاك لمستخدمي الهواتف الذكية. تشمل حالات الاستخدام الأخرى ما يلي:
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