Abstract: A method and apparatus for determining a water chilling unit for cooling a data center are provided. The method includes: acquiring a current water output parameter, a current water input parameter, a current water flow parameter and a current outdoor temperature parameter of each water chilling unit of the data center; pre-processing the water output parameter, the water input parameter, the water flow parameter and the outdoor temperature parameter to obtain a characteristic parameter of each water chilling unit; importing the characteristic parameters of each water chilling unit into a pre-established machine learning model to obtain the current electric power of each water chilling unit; and determining a water chilling unit for cooling the data center on the basis of a preset cooling load, a rated cooling capacity of the water chilling unit and the current electric power of each water chilling unit.

Abstract: An objective of the present disclosure is to provide a cooling system for a data center. The system includes: a cabinet hot aisle, disposed above a cabinet; a hot airflow passage, disposed at a top of the data center, a ventilating fan being disposed between the hot airflow passage and the cabinet hot aisle; an exterior wall heat exchanging structure, disposed on an exterior wall of the hot airflow passage, a surface of the exterior wall heat exchanging structure adopting a turbulent airflow heat exchanging structure; and a cold airflow passage, communicated with the cabinet, a natural cold air supply damper being disposed between the cold airflow passage and the hot airflow passage.

Abstract: The present disclosure provides a refrigeration system and refrigeration method for a data center.

Abstract: A liquid-cooled server chassis includes: a case; one or more liquid-cooling modules, each liquid-cooling module including a housing, a gas outlet valve, and a liquid return valve, wherein the gas outlet valve and the liquid return valve are opened in an operation of the liquid-cooling module, and the liquid-cooling module accommodates a single server and is filled with coolant during operation; a connector configured to connect the liquid-cooling module to a power source; and a circulation portion including an gas outlet pipe, a liquid return pipe, a vapor processing part, and a liquid collecting part. The server can be taken out separately for maintenance or replacement without affecting the operation of other servers. In addition, a condenser is disposed outside the liquid-cooling module so that the coolant cannot contaminate the server and the reliability of the chassis is improved.

Abstract: A cooling system for a data center includes: at least one liquid-cooling heat exchanger disposed above each of the integrated circuit boards to dissipate heat from a first heat source disposed on the integrated circuit board through an internal circulation coolant in the liquid-cooling heat exchanger; a liquid-cooling distributing device comprising a first pipeline in communication with the liquid-cooling heat exchanger, a second pipeline in communication with a first cooling tower, and a heat exchanger configured to cool the internal circulation coolant from the liquid-cooling heat exchanger to a first temperature through an external circulation coolant from the first cooling tower; and the first cooling tower configured to cool the external circulation coolant supplied via the second pipeline to the second temperature, wherein the first temperature is higher than the second temperature. As a result, energy consumption can be reduced and chip-level cooling can be achieved.

Abstract: The disclosures provide a method and apparatus for transmitting and receiving interface signals of a distributed base station. At least one channel of Common Public Radio Interface (CPRI) signals of a distributed base station are encapsulated into optical transport unit x (OTUx) signals in a frame structure of OTUx by adopting Generic Mapping Procedure (GMP) mapping scheme, wherein the x represents a transmission capacity and wherein the OTUx is adopted for providing a bandwidth required by the at least one channel of CPRI signals, and then the OTUx signals that bear the at least one channel of CPRI signals are sent.

Abstract: The present disclosure discloses an intelligent monitoring method and apparatus. One specific implementation of the method comprises: determining, based on a plurality of parameter values of a warning associated parameter of a to-be-monitored apparatus within a preset period, a time dependent characteristic that parameter values of the warning associated parameter; and determining a target period, based on the parameter values of the warning associated parameter of the to-be-monitored apparatus at a current time and the time dependent characteristic of the parameter values of the warning associated parameter, and determining whether to generate a warning information based on a period interval encompassing the target period. The warning of possible faults in the operation of industrial equipment is implemented, without a manual monitoring of the operation of the industrial equipment is not required and a complete automated operation of the industrial equipment is implemented.

Abstract: A cooling system of a data center computer room and a data center are provided. A specific embodiment of the system comprises: a liquid cooling system, including a liquid cooling cabinet, a heat exchanger forming a first circulation loop with the liquid cooling cabinet, and a cooling tower forming a second circulation loop with the heat exchanger; and a radiant cooling system, including a water pipe absorbing radiant heat in the data center computer room, a water chilling unit forming a third circulation loop with the water pipe, and a cooling tower forming a fourth circulation loop with the water chilling unit. The embodiment has improved the cooling efficiency of the data center computer room.

Abstract: An energy supply system recycling data center waste heat comprises: a cooling system recycling data center waste heat, the cooling system recycling a high-temperature coolant outputted by a data center, and transferring heat of the high-temperature coolant to an absorption refrigerator using a heat exchanger, to enable the absorption refrigerator to absorb the heat of the high-temperature coolant and make the heat into cold for cooling a to-be-cooled apparatus; and a heat supply system recycling data center waste heat, the heat supply system recycling the high-temperature coolant outputted by the data center, and transferring the heat of the high-temperature coolant to a to-be-heated apparatus using the heat exchanger; where the data center comprises a plurality of liquid cooled cabinets, the liquid cooled cabinets absorbing heat of the data center to generate the high-temperature coolant.

Abstract: A method and apparatus for determining a water chilling unit for cooling a data center are provided. The method includes: acquiring a current water output parameter, a current water input parameter, a current water flow parameter and a current outdoor temperature parameter of each water chilling unit of the data center; pre-processing the water output parameter, the water input parameter, the water flow parameter and the outdoor temperature parameter to obtain a characteristic parameter of each water chilling unit; importing the characteristic parameters of each water chilling unit into a pre-established machine learning model to obtain the current electric power of each water chilling unit; and determining a water chilling unit for cooling the data center on the basis of a preset cooling load, a rated cooling capacity of the water chilling unit and the current electric power of each water chilling unit.

Abstract: An objective of the present disclosure is to provide a cooling system for a data center. The system includes: a cabinet hot aisle, disposed above a cabinet; a hot airflow passage, disposed at a top of the data center, a ventilating fan being disposed between the hot airflow passage and the cabinet hot aisle; an exterior wall heat exchanging structure, disposed on an exterior wall of the hot airflow passage, a surface of the exterior wall heat exchanging structure adopting a turbulent airflow heat exchanging structure; and a cold airflow passage, communicated with the cabinet, a natural cold air supply damper being disposed between the cold airflow passage and the hot airflow passage.

Abstract: In the wavelength selective switch provided in the present invention, at least one optical element is successively arranged in the wavelength selective switch according to a sequence of processing optical signals. The at least one optical element receives a service optical signal from a service laser, receives a monitoring optical signal from a monitoring laser, and performs same optical signal processing on the service optical signal and the monitoring optical signal according to a processing function of the at least one optical element, where a wavelength of the service optical signal and a wavelength of the monitoring optical signal are different. A service optical signal processed by the at least one optical element and a monitoring optical signal processed by at least one optical element are output, where the monitoring optical signal processed by the at least one optical element is used for monitoring performance of the wavelength selective switch.

Abstract: The machine cabinet for dissipating heat includes a housing, and an inner chamber, a liquid working medium accommodating area, a heat exchanger and a delivery passage disposed in the housing. The inner chamber is in a vacuum state and accommodates electronic devices to be cooled; the liquid working medium accommodating area accommodates a liquid working medium, the liquid working medium is converted into a gas working medium to enter the heat exchanger after cooling the electronic devices to be cooled; the heat exchanger liquefies the gas working medium into a liquid working medium and guides the liquid working medium obtained by liquefying the gas working medium into the delivery passage; and the delivery passage is connected with the heat exchanger and the liquid working medium accommodating area and guides the liquid working medium obtained by liquefying the gas working medium into the liquid working medium accommodating area.

Abstract: The present disclosure discloses an intelligent monitoring method and apparatus. One specific implementation of the method comprises: determining, based on a plurality of parameter values of a warning associated parameter of a to-be-monitored apparatus within a preset period, a time dependent characteristic that parameter values of the warning associated parameter; and determining a target period, based on the parameter values of the warning associated parameter of the to-be-monitored apparatus at a current time and the time dependent characteristic of the parameter values of the warning associated parameter, and determining whether to generate a warning information based on a period interval encompassing the target period. The warning of possible faults in the operation of industrial equipment is implemented, without a manual monitoring of the operation of the industrial equipment is not required and a complete automated operation of the industrial equipment is implemented.

Abstract: The present disclosure discloses a cooling system employable in data centers. An specific embodiment of the cooling system comprises: a first refrigeration medium, a first evaporator, a first condenser, and an all-condition cooling tower, wherein: the first evaporator is installed in a to-be-cooled space, the first evaporator is connected to the first condenser, an installation position of the first condenser is higher than an installation position of the first evaporator; the first condenser is connected to the all-condition cooling tower, and the all-condition cooling tower is disposed outside the to-be-cooled space, the all-condition cooling tower is used for providing the first condenser with a cold source for cooling the first refrigeration medium in a gaseous state. The cooling system provided by the embodiment has the advantages of simple structure, convenient installation and maintenance and low cost.

Abstract: In the wavelength selective switch provided in the present invention, at least one optical element is successively arranged in the wavelength selective switch according to a sequence of processing optical signals. The at least one optical element receives a service optical signal from a service laser, receives a monitoring optical signal from a monitoring laser, and performs same optical signal processing on the service optical signal and the monitoring optical signal according to a processing function of the at least one optical element, where a wavelength of the service optical signal and a wavelength of the monitoring optical signal are different. A service optical signal processed by the at least one optical element and a monitoring optical signal processed by at least one optical element are output, where the monitoring optical signal processed by the at least one optical element is used for monitoring performance of the wavelength selective switch.

Abstract: The present application discloses a machine cabinet.

Abstract: The present disclosure provides a method and a device for controlling an operation state of a data center. The method includes: calculating operating parameters at an optimal operation state point of the data center in a current outdoor environment condition via an operation state model of the data center according to service requirements of an IT equipment side and tolerable conditions of indoor environment; sending the operating parameters at the optimal operation state point of the data center to the data center, such that the data center operates according to the operating parameters at the optimal operation state point of the data center.

Abstract: The disclosures provide a method and apparatus for transmitting and receiving interface signals of a distributed base station. At least one channel of Common Public Radio Interface (CPRI) signals of a distributed base station are encapsulated into optical transport unitx (OTUx) signals in a frame structure of OTUx by adopting Generic Mapping Procedure (GMP) mapping scheme, wherein the x represents a transmission capacity and wherein the OTUx is adopted for providing a bandwidth required by the at least one channel of CPRI signals, and then the OTUx signals that bear the at least one channel of CPRI signals are sent.

Abstract: The disclosures provide a method and apparatus for transmitting and receiving interface signals of a distributed base station. At least one channel of Common Public Radio Interface (CPRI) signals of a distributed base station are encapsulated into optical transport unit x (OTUx) signals in a frame structure of OTUx by adopting Generic Mapping Procedure (GMP) mapping scheme, wherein the x represents a transmission capacity and wherein the OTUx is adopted for providing a bandwidth required by the at least one channel of CPRI signals, and then the OTUx signals that bear the at least one channel of CPRI signals are sent.