Abstract: Embodiments of the present invention disclose an electronic equipment cooling system including: a cabinet; at least one electronic equipment chassis that is installed inside the cabinet; and an auxiliary cooling device including an air pressurizing device, an air supply plenum box, and an air-guiding device. The air supply plenum box is disposed on an inner side of the cabinet. The air pressurizing device is disposed at the top or bottom of the cabinet, and an air exhaust on a sidewall of the air pressurizing device is connected to a corresponding air intake on a sidewall of the air supply plenum box. The air-guiding device is installed inside the electronic equipment chassis, an air intake of the air-guiding device is connected to an air exhaust of the air supply plenum device, and an air exhaust of the air-guiding device faces a component inside the electronic equipment chassis.

Abstract: Embodiments of the present invention provide a noise reduction method, device, and system. In the embodiments of the present invention, operating condition information of a noise source is obtained, where the operating condition information represents an operating condition of the noise source, then sound wave information corresponding to the obtained operating condition information is determined according to a pre-set mapping between the operating condition information and the sound wave information, and active noise reduction is performed by using the corresponding sound wave information. Steps such as collection, conversion, and calculation for noise generated by the noise source are not required, thereby shortening time for the active noise reduction.

Abstract: In one embodiment, a system includes a telecom utility cabinet and an air-based geothermal cooling system for the telecom utility cabinet. The system also includes a leak detector for the air-based geothermal cooling system. In another embodiment, a method includes detecting a leak in an air-based geothermal cooling system. The method also includes activating a liquid pump for the air-based geothermal cooling system in response to the leak detection.

Abstract: In one embodiment, the disclosure includes an air-based geothermal cooling system for a telecom utility cabinet. The air-based geothermal cooling system includes a plurality of heat exchange tubes configured to extend into an underground environment. The air-based geothermal cooling system also includes an input/output (I/O) manifold coupled to the plurality of heat exchange tubes and providing an airway between the plurality of heat exchange tubes and the telecom utility cabinet.

Abstract: In one embodiment, a system includes a telecom utility cabinet and an air-based geothermal cooling system for the telecom utility cabinet. The air-based geothermal cooling system forms an air circulation loop that receives air from the telecom utility cabinet and returns cooled air to the telecom utility cabinet. In another embodiment, an air-based geothermal cooling system for a telecom utility cabinet is provided. The air-based geothermal cooling system comprises a plurality of heat exchange tubes configured to extend into an underground environment. The plurality of heat exchange tubes are part of an air circulation loop configured to receive air from the telecom utility cabinet and to return cooled air to the telecom utility cabinet.

Abstract: In one embodiment, the disclosure includes a telecom utility cabinet including a heat load chamber. The telecom utility cabinet also includes an air introducing duct configured to conduct air from the heat load chamber to a geothermal cooling system. The telecom utility cabinet also includes an air discharging duct configured to conduct air from the geothermal cooling system to the heat load chamber. In another embodiment, the disclosure includes a method for managing temperature in a telecom utility cabinet. The method includes introducing air from a heat load chamber to a geothermal cooling system and discharging air from the geothermal cooling system to the heat load chamber.