Abstract: A light board structure includes a board body, a wireless transceiver module and a light-emitting member. The wireless transceiver module and the light-emitting member are both installed on the board body. The wireless transceiver module has a feeder wire and a ground wire. The board body has a collision avoidance area, which runs through the board body and disposed to avoid collision with the wireless transceiver module and the light-emitting member. The feeder wire and the ground wire are positioned on a side of the collision avoidance area. The collision avoidance area is configured to emit a radio wave, and solve a problem that the communication distance of a light board structure is short. A light fixture having the light board structure includes an installation cavity. The collision avoidance area of the light board structure matches an inner wall of the installation cavity to form a collision avoidance channel.

Abstract: Disclosed is a turbine fracturing apparatus. The turbine fracturing apparatus includes: a main power assembly and an auxiliary power assembly. The main power assembly includes a first power source and a piston pump connected to the first power source; the first power source outputs power to the piston pump, and the piston pump outputs a first liquid. The auxiliary power assembly includes a second power source, a load sensitive system connected to the second power source, and an auxiliary power device; the second power source outputs power to the load sensitive system, the load sensitive system is connected to the auxiliary power device and outputs a second liquid for the auxiliary power device. The first liquid is different from the second liquid, and the first liquid and the second liquid have certain pressure. The load sensitive system is configured to regulate a pressure of the second liquid in real time according to pressure of the second liquid required by the auxiliary power device.

Abstract: This disclosure generally relates to power generation methods and systems based on gas turbine engines, and particularly to mobile and adaptive power generation systems and methods based on gas turbine engine for supplying mechanical and/or electrical power for fracturing operations at an oil wellsite. Various systems, platforms, components, devices, and methods are provided for flexibly and adaptively configure one of more gas turbines, hydraulic pumps, and electric generators to support both fracturing and electric demands at a well site. The disclosed implementations enable and facilitate a mobile, adaptive, and reconfigurable power system to provide both mechanical and electric power for hydraulic fracturing operation.

Abstract: An operation method of a turbine fracturing device and a turbine fracturing device are provided. The turbine fracturing device includes a turbine engine, a speed reducer, a brake mechanism, and a fracturing pump, the method includes: driving, by the turbine engine, the fracturing pump to perform a fracturing operation through the speed reducer so as to keep the fracturing pump in an operating state, the fracturing pump being configured to suck fluid of a first pressure and discharge fluid of a second pressure, the second pressure being greater than the first pressure; and in response to an idling instruction, the turbine engine entering an idling state and triggering a brake operation so as to keep the fracturing pump in a non-operating state.

Abstract: This disclosure generally relates to power generation methods and systems based on gas turbine engines, and particularly to mobile and adaptive power generation systems and methods based on gas turbine engine for supplying mechanical and/or electrical power for fracturing operations at an oil wellsite. Various systems, platforms, components, devices, and methods are provided for flexibly and adaptively configure one of more gas turbines, hydraulic pumps, and electric generators to support both fracturing and electric demands at a well site. The disclosed implementations enable and facilitate a mobile, adaptive, and reconfigurable power system to provide both mechanical and electric power for hydraulic fracturing operation.

Abstract: A turbine fracturing system and a controlling method thereof, a controlling apparatus and a storage medium are provided. The turbine fracturing system includes: N turbine fracturing apparatuses, wherein each of the N turbine fracturing apparatuses comprises a turbine engine, and N is an integer greater than or equal to 2; a fuel gas supply apparatus connected to the N turbine engines, wherein the fuel gas supply apparatus is configured to supply fuel gas and distribute the fuel gas to the N turbine engines as gaseous fuel; and a fuel liquid supply apparatus connected to at least one of the N turbine engines and configured to supply liquid fuel to at least one of the N turbine engines in a case that at least one of a flow rate and a pressure of the fuel gas decreases.

Abstract: A fracturing and power generation switchable apparatus, a well site, a control method of the well site, a control device, and a storage medium are provided. The fracturing and power generation switchable apparatus includes a power device, a speed transmission device, and a bearing base. The switchable apparatus is configured to switch between a first state and a second state, under the first state, the plunger pump is fixed on the bearing base and is connected with the speed transmission device, and the switchable apparatus is supplied as a fracturing apparatus, and under the second state, the electric generator is fixed on the bearing base and is connected with the speed transmission device, and the switchable apparatus is supplied as a power generation apparatus.

Abstract: Disclosed is a turbine fracturing apparatus. The turbine fracturing apparatus includes: a main power assembly and an auxiliary power assembly. The main power assembly includes a first power source and a piston pump connected to the first power source; the first power source outputs power to the piston pump, and the piston pump outputs a first liquid. The auxiliary power assembly includes a second power source, a load sensitive system connected to the second power source, and an auxiliary power device; the second power source outputs power to the load sensitive system, the load sensitive system is connected to the auxiliary power device and outputs a second liquid for the auxiliary power device. The first liquid is different from the second liquid, and the first liquid and the second liquid have certain pressure. The load sensitive system is configured to regulate a pressure of the second liquid in real time according to pressure of the second liquid required by the auxiliary power device.

Abstract: Various embodiments of the invention provide for an AC-coupling method and systems that utilize a nested loop circuit to generate a differential mode output that facilitates an offset compensation and a common mode output that facilitates DC-biasing of an active circuit. In embodiments, the nested loop circuit comprises a differential amplifier and a differential mode loop that generates a differential mode output and a common mode loop that uses a common mode voltage and a reference voltage to generate the common mode output.

Abstract: A combustion-gas supply system and a combustion-gas supply method thereof, a device equipped with a turbine engine, and a fracturing system are provided. The combustion-gas supply system includes a main pipeline and a multi-functional pipeline; the main pipeline includes a first sub-pipeline and a second sub-pipeline; the first sub-pipeline includes a first gas intake pipe, a first gas supply valve and a first gas outlet pipe arranged in sequence; the second sub-pipeline includes a combustion-gas supply valve and a gas supply pipe, the first gas outlet pipe is connected with the combustion-gas supply valve, the gas supply pipe is configured to be connected with a turbine engine, the multi-functional pipeline includes a second gas intake pipe, a second gas supply valve and a second gas outlet pipe arranged in sequence, and the second gas outlet pipe is communicated with the first gas outlet pipe.

Abstract: An angle-of-arrival antenna system uses two orthogonal arrays of patch antenna elements to measure the angle of arrival of a wireless signal irrespective of its polarization. Each antenna element has an antenna patch located over a corresponding ground patch. A shorting wall directly electrically connects one edge of the antenna patch to a corresponding edge of the underlying ground patch. The edge of the ground patch is also directly connected to a system ground plane. No other edges of the ground patch are connected to the system ground plane. The shorting wall acts as an impedance that isolates the ground patch from the system ground plane, and therefore improves isolation between the antenna elements. The antenna system may be constructed using conventional circuit-board fabrication techniques by implementing each shorting wall as an array of plated through-holes or slots.

Abstract: An operation method of a turbine fracturing device and a turbine fracturing device are provided. The turbine fracturing device includes a turbine engine, a speed reducer, a brake mechanism, and a fracturing pump, the method includes: driving, by the turbine engine, the fracturing pump to perform a fracturing operation through the speed reducer so as to keep the fracturing pump in an operating state, the fracturing pump being configured to suck fluid of a first pressure and discharge fluid of a second pressure, the second pressure being greater than the first pressure; and in response to an idling instruction, the turbine engine entering an idling state and triggering a brake operation so as to keep the fracturing pump in a non-operating state.

Abstract: A device for efficiently separating ethyl tin from molten crude tin is disclosed. The device includes grab buckets, connecting rods, an inverted T-shaped push rod, alloy legs, a hanger plate, a cylinder and a lifting ring; wherein one end of the connecting rod is fixedly connected with one side of the grab bucket, and the other end of the connecting rod is detachably connected with the bottom end of the inverted T-shaped push rod; a top flange of the inverted T-shaped push rod is detachably connected with the bottom flange of the cylinder through threads, and the inverted T-shaped push rod is powered by the cylinder to push and pull. The device has simple structure, small volume, light weight, convenient use and placement, reduced occupancy rate of production site space and flexible use; the invention adopts a remote control mode, mechanized operation, higher safety and labor saving.

Abstract: Provided are a signaling receiving method, a signaling transmitting method, and a device. The signaling receiving method includes receiving a first signaling. The first signaling includes a first-type parameter corresponding to a target element. The first-type parameter includes at least one of the following: a physical cell identifier, a mobility measurement reference signal, or a sequence parameter of a synchronization signal. The target element includes one of the following: a serving cell, a serving cell group, a bandwidth part (BWP), a BWP group, an information element, an information element group, a transmission configuration indicator (TCI) state, or a TCI state group. The information element includes at least one of the following: a channel or a signal.

Abstract: A fracturing and power generation switchable apparatus, a well site, a control method of the well site, a control device, and a storage medium are provided. The fracturing and power generation switchable apparatus includes a power device, a speed transmission device, and a bearing base. The switchable apparatus is configured to switch between a first state and a second state, under the first state, the plunger pump is fixed on the bearing base and is connected with the speed transmission device, and the switchable apparatus is supplied as a fracturing apparatus, and under the second state, the electric generator is fixed on the bearing base and is connected with the speed transmission device, and the switchable apparatus is supplied as a power generation apparatus.

Abstract: A mounting bracket and an auxiliary mechanism are disclosed. The mounting bracket includes a mounting base, a first mounting plate, a second mounting plate and a tubular connection structure; the first mounting plate and the second mounting plate are fixed on the mounting base; the second mounting plate and the first mounting plate are oppositely arranged and spaced apart; the first mounting plate includes at least one first mounting hole and a first fixing hole, the second mounting plate includes a second fixing hole, and the first mounting hole is configured to mount a motor or an oil pump; one end of the tubular connection structure is connected with an edge of the first fixing hole, and another end of the tubular connection structure is connected with an edge of the second fixing hole.

Abstract: The present disclosure relates to an emergency lighting circuit, an emergency start control method thereof and an emergency lighting system. When an emergency start condition is met, matching can be performed in a preset dimming database according to type information of load lighting equipment connected to a current emergency lighting circuit to obtain a dimming parameter value matching a power value required by the load lighting equipment, and finally, the load lighting equipment is directly controlled to start with the dimming parameter value. Through the above solution, when emergency lighting is started, there is no need to spend time in regulating power of the load lighting equipment, and a corresponding power value can be ensured when the load lighting equipment is started, which is highly reliable in emergency lighting start.

Abstract: The present disclosure relates to an emergency lighting circuit, a control method thereof and an emergency lighting system. Normal lighting is monitored by detecting whether a charging management apparatus in the emergency lighting circuit has electric energy input. When the charging management apparatus has no electric energy input, emergency lighting may be started, and power transmitted to load lighting equipment is switched to an emergency battery apparatus through a power supply switching apparatus, which is processed by a boost inverter to provide appropriate electric energy for the load lighting equipment. A power detection apparatus detects an input-terminal power signal of the boost inverter, and regulates power of the load lighting equipment based on the input-terminal power signal. Operating power of the load lighting equipment is regulated based on the input-terminal power signal of the boost inverter. An input-terminal voltage of the boost inverter is a DC low voltage and easy to detect.

Abstract: Provided are a quasi-co-location information obtaining method, communication node and storage medium. The method of obtaining quasi-co-location information, including: acquiring, by a communication node based on first information, a number x and/or a determination mode of quasi-co-location reference signal sets of a first element; where the first information includes at least one of: information indicated in a downlink control channel that schedules the first element; the number of quasi-co-location reference signal set corresponding to a predetermined codepoint in a transmission configuration indicator (TCI) state mapping table; the number of CORESET group; the maximum number of quasi-co-location reference signal sets corresponding to one codepoint in the TCI state mapping table; or a number of time domain repetition of the first element; the number of quasi-co-location reference signal sets corresponding to a second element.

Abstract: Provided are a method and apparatus for determining information, a method and apparatus for determining corresponding relationship, a device, and a medium. The method for determining the corresponding relationship includes determining a first corresponding relationship according to at least one of signaling information or a predetermined rule. The first corresponding relationship includes at least one of the following: a corresponding relationship between N pieces of third information and M sets of beam failure recovery parameters or a corresponding relationship between a first-type frequency domain bandwidth group and a second-type frequency domain bandwidth group. N and M are each a positive integer greater than or equal to 1. A piece of third information includes at least one of the following: a control resource set (CORESET) group or a frequency domain bandwidth group.