However, the maximum number is around 100 transmitters per module due to the increasing density of switches/sensors.įour billion code numbers provide for clear transmitter/receiver assignment. Almost any number of sensors is possible. The radiated energy from the transmitter modules is approximately one million times smaller than mobile phones. The energy required for switch or sensor operation is produced by converting one type of energy (heat, solar or mechanical energy) into usable electrical energy. Preprogrammed function blocks make integration easy. This module can be operated with any controller within the WAGO I/O System 750. Research is ongoing to increase the system's bandwidth and data rates.The 750-642 Module receives radio telegrams from maintenance-free, self-powered and wireless switches/sensors based on EnOcean radio technology. The system achieved a data rate on the order of 100 megabits per second, considered an excellent speed for video gaming and household internet. Researchers found that small beam diameters (less than 100 micrometers) for both lasers led to much faster responses and color reception. That's because atoms move in and out of the interaction zone, so smaller areas result in a higher signal "refresh rate" and better resolution. This time is inversely related to the bandwidth of the receiver that is, a shorter time and smaller beam produce more data. The beam size affects the average time the atoms remain in the laser interaction zone. The researchers studied the laser beam sizes, powers and detection methods required for the atoms to receive video in standard definition format. Researchers use the original carrier signal as a reference and compare it to the final video output detected through the atoms to evaluate the system. To display a live video signal or video game, this input is sent from a video camera to modulate the original carrier signal, which is then fed to a horn antenna directing the transmission to the atoms. An analog-to-digital converter transforms the signal into a video graphics array format for display. The modulated output is then fed to a television. The team can detect energy shifts in the Rydberg atoms that modulate this carrier signal. To prepare to receive video, a stable radio signal is applied to the glass container filled with atoms. This work is part of the NIST on a Chip program. The modulated output is then fed to a television where an analog-to-digital converter transforms the signal into a video graphics array format for display. A stable radio signal is applied to the glass container filled with atoms in a Rydberg state. NIST scientists demonstrate using rubidium atoms in a Rydberg state as receivers which can pick up live video, and even play video games. The team previously used the setup with cesium atoms to demonstrate the basic radio receiver and a "headphone" appliance to boost sensitivity a hundredfold. Researchers use two different color lasers to prepare gaseous rubidium atoms in Rydberg states in a glass container. We basically encoded the video game onto a signal and detected it with the atoms. "Now we are doing video streaming and quantum gaming, streaming video games through the atoms. "We figured out how to stream and receive videos through the Rydberg atom sensors," project leader Chris Holloway said. The latest work, described in AVS Quantum Science, is the first to demonstrate video reception. These sensors also enable signal power measurements linked to the international system of units (SI). NIST's receiver uses atoms prepared in high-energy "Rydberg" states, which are unusually sensitive to electromagnetic fields, including radio signals. Adding video capability could enhance radio systems in, for example, remote locations or emergency situations. Atom-based communications systems are of practical interest because they could be physically smaller and more tolerant of noisy environments than conventional electronics.
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