Día: 18 de diciembre de 2023 (página 86)

El Internet de las Cosas apoyado por el sistema de comunicaciones móviles de quinta generación (sistema 5G para abreviar) ampliará su volumen de acceso y su cobertura, y podrá adaptarse y satisfacer mucho mejor las crecientes necesidades de explotación y mantenimiento del tránsito ferroviario urbano.....

Con el continuo desarrollo de la tecnología de comunicación inalámbrica, el Internet de los objetos, como componente principal, ha atraído la atención de todos los ámbitos de la vida. En este artículo se estudia principalmente el estado de desarrollo del Internet de los objetos en el ámbito inalámbrico de área amplia....

Aplicación de la tecnología de comunicación 4G en telemedicina Según las últimas informaciones de Verizon, la mayor empresa de comunicaciones inalámbricas de Estados Unidos, en septiembre de 2013, la empresa Michigan St. Clair desarrolló una solución avanzada de telemedicina utilizando la red 4G LTE....

Concepto de tecnología de comunicaciones 4G La cuarta generación de estándares de comunicaciones móviles de telefonía móvil (4G) hace referencia a la cuarta generación de tecnología de comunicaciones móviles. Se trata de una red de acceso y distribución de banda ancha con una velocidad de descarga de 100 Mbps y una...

The application of the Internet of Things has greatly promoted the development of our country’s economy, especially the promotion and use of 4G network technology, which has brought opportunities for the development of the Internet of Things technology. Therefore, the…

Based on the current LTE network construction, due to the increasing density of buildings in people’s living environment, not only will the diffraction performance of LTE high-frequency networking wireless signals deteriorate, but it will also reduce the network coverage area…

This article introduces in detail the common Wifi channel interference faults (including assisted channel interference and overlapping channel interference) in areas where APs are densely distributed. For different fault types, simulation experiments are conducted under different level environmental conditions to…

When users use 2G and 3G networks, their main requirement for network quality is whether the quality of calls is stable. However, with the popularity of LTE network technology, many network users are more concerned about the speed of network…

1. 50 pieces of electrical control knowledge 1. According to the classification of uses, low-voltage electrical appliances are divided into control electrical appliances, main command electrical appliances, protective electrical appliances, distribution electrical appliances and executive electrical appliances. 2. According to…

Capacitor is the most commonly used device in circuit design and is one of the passive components. Simply put, an active device is a device that requires an energy (electricity) source. It is called an active device. A device that…

What is breaker failure protection? When the main protection action of the faulty electrical equipment issues a trip command but the circuit breaker refuses to operate, the protection action information of the faulty equipment and the current or other information…

Siemens Profibus DP communication is often used for communication between PLC and other PLCs, remote substations, frequency converters, bus instruments and third-party DP equipment. The program is simple and the wiring is convenient. However, once the red light on the…