48results about How to "Change connection relationship" patented technology

An embodiment of the invention provides a configuration method and device of a PCIe (peripheral component interface express) topology. The method includes: acquiring an identifier of each PCIe slot connected to a single board of a server and device information of a PCIe device connected to each PCIe slot, and determining a current connectional relation between each PCIe device and the corresponding PCIe slot according to the identifiers of the PCIe slots and the device information of the PCIe devices; correcting configuration of a PCI3 switch chip according to the current connectional relation between each PCIe device and the corresponding PCIe slot. When a new application scenario occurs, just after a user adjusts the connectional relations between the PCIe devices and the PCIe slots, the device can automatically correct the configuration of the PCIe switch chip according to the adjusted connectional relations so as to complete the configuration of the PCIe topology, with no need for adding a single board; accordingly, server cost is reduced. In addition, changes in the PCIe topology allow one single board to support various application scenarios.

A method for melting ice on line of super high voltage DC transmission system adds connection wire and switch in main wiring of super high voltage DC transverting station to change connection relation between transverters and to raise current on transmission line for melting ice on transmission line by changing on-off state of switch correspondingly.

The invention relates to a silicon carbide ceramic heat exchanger. The silicon carbide ceramic heat exchanger comprises a silicon carbide ceramic upper blocking plate, a silicon carbide ceramic lower blocking plate, a silicon carbide ceramic heat exchange tube bundle, an upper collection opening, a lower collection opening and a shell, wherein the silicon carbide ceramic heat exchange tube bundle is arranged inside the shell; step holes are formed in the silicon carbide ceramic upper blocking plate and the silicon carbide ceramic lower blocking plate; the aperture of each step hole in one side of the silicon carbide ceramic heat exchange tube bundle is more than the aperture of the step hole in the other side of the silicon carbide ceramic heat exchange tube bundle; the both ends of the silicon carbide ceramic heat exchange tube bundle are respectively connected with the silicon carbide ceramic upper blocking plate and the silicon carbide ceramic lower blocking plate through the step holes. According to the silicon carbide ceramic heat exchanger provided by the invention, the existing connection relationship between the silicon carbide ceramic heat exchange tube bundle, and the silicon carbide ceramic upper blocking plate and the silicon carbide ceramic lower blocking plate is changed, so that the problem of sealing invalidation which is caused by different expansion degrees due to cold and heat non-uniformity of the silicon carbide ceramic heat exchange tube bundle, the silicon carbide ceramic upper blocking plate, the silicon carbide ceramic lower blocking plate and the shell can be solved.

This invention relates to one index block reading module in the visual coder in signal process visual frequency coding field, wherein, the module comprises the following parts: reference image data memory, two dimension index block registers array, wherein, the reference image data memory output end is connected to the upper register input end and down register input end on the array; the two dimension index black register array is composed of (m+1)*n unit register and one of three selector.

The invention discloses a microwave test system, comprising a control end, a harmonic detection device and a turntable respectively connected with the control end, a first antenna connected with the harmonic detection device, an integrated tester, and a second antenna connected with the integrated tester. The microwave test system is low in construction cost and compatible with a test system for testing aerial electromagnetic characteristic parameters.

The invention discloses an air conditioner heat exchange structure, an air conditioner system, a control method of the air conditioner system and an air conditioner indoor unit. The air conditioner heat exchange structure comprises at least two heat exchange modules with adjustable series-parallel connection relation. The first end of the first heat exchange module is connected to the first end of the second heat exchange module through a first valve, and the first end of the first heat exchange module is further connected to a first connector of the air conditioner heat exchange structure; the second end of the first heat exchange module is connected to a second connector of the air conditioner heat exchange structure through a second valve; the second end of the first heat exchange module is further connected to the first end of the second heat exchange module through a third valve and a first throttling device in sequence; and the second end of the second heat exchange module is connected to a second connector of the air conditioner heat exchange structure. According to the air conditioner heat exchange structure, the at least two heat exchange modules are arranged, the connecting relation of the two heat exchange modules is changed by controlling the valves and the throttling devices, the refrigerating and heating state changes of the heat exchange modules can be achieved, and therefore it can be guaranteed that the comfort requirement of a user is met in different operation modes in cooperation with an outdoor unit.

The invention belongs to the technical field of industrial design, and particularly relates to an industrial design product display device. The device comprises a main box body and an auxiliary box body, guide grooves are formed in the inner side surface and the outer side surface of the main box body in the vertical direction; supporting guide plates are fixed to the two sides of the upper end face of the supporting base, and the inner side walls of the supporting guide plates are slidably inserted into guide grooves formed in the outer surface of the main box body through supporting guide strips. A lifting supporting mechanism is arranged in the supporting base; an auxiliary box body is slidably inserted into the main box body in the vertical direction, and the two sides of the auxiliarybox body are slidably inserted into guide grooves formed in the inner surface of the main box body through T-shaped guide strips. A storage plate is arranged in the auxiliary box body, and the auxiliary box body is supported into the main box body in a sliding mode through a supporting jacking mechanism; the display device can display products of different sizes, and the space utilization rate ofthe display device is increased; and meanwhile, the display device can be converted into a product storage box, the displayed products can be conveniently stored, and the utilization rate of the display device is further increased.

The invention discloses a high-strength water-permeable plastic-wood floor board. The high-strength water-permeable plastic-wood floor board comprises a cuboid board body, wherein 7-shaped bulges are arranged on two sides of the board body, the bulges on the two sides are connected with the top and the bottom of the board body respectively, and the adjacent bulges can be mutually clamped when adjacent plastic-wood boards are spliced; a group of cavities are formed in the middle of the board body, and water holes are formed between the cavities and the bottom of the board body. By comparison with the prior art, the clamping connection relation of tenons and grooves of the plastic-wood boards is changed, longitudinally clamped bulges are used for connection, the force unloading purpose is achieved through cavity design, a certain amount of vapor is generated inside when the temperatures inside and outside the cavities are different due to design of the cavities, and the generated vapor is taken away through the water holes.

The switching unit state detection method and the application device provided by the invention are applied to the technical field of direct current charging, and the method comprises the following steps: after controlling each resonant circuit LLC in a charging pile to output a preset port voltage, controlling a switching unit connected with the output end of each LLC in the charging pile to act; and then obtaining actual measurement port voltage of each LLC and total output voltage of the charging pile, and judging whether each switching unit is adhered or disconnected according to the magnitude relationship between each actual measurement port voltage and the total output voltage. According to the invention, the preset port voltage output by the charging pile is taken as an implementation basis, whether each switching unit is adhered or disconnected can be detected based on the magnitude relationship between the actually measured port voltage of each LLC and the total output voltage of the charging pile, and then the switching unit does not depend on an external storage battery any more, so that the problems in the prior art are solved.

The invention provides a detection circuit, a detection method and an application device which are applied to the technical field of direct current charging. The circuit comprises a first detection module, a second detection module and a third detection module, wherein the first detection module and the third detection module are connected in series to form a series branch, the obtained series branch is connected between the output end of a positive bus switch and the output end of a negative bus switch in series, one end of the second detection module is connected with a series connection point of the first detection module and the third detection module, the other end of the second detection module is connected with the input end of the positive bus switch or the input end of the negative bus switch, and the connection state of the first detection module and the third detection module is controllable. The detection personnel can change the connection relation between the detection modules according to the connection state of the bus switch in cooperation with control over the connection state of the first detection module and the connection state of the third detection module, then voltages corresponding to the detection modules are changed, and compared with the prior art, the circuit structure is more simplified.

The invention discloses an intelligent photovoltaic topological transformation power optimization system and a control method. The system comprises a switch control module, a current acquisition module, a central processing module, a switch module, a plurality of photovoltaic string modules and a plurality of MPPT modules. The switch control module and the current acquisition module are both connected with the central processing module, and the switch module is connected with the switch control module; the two ends of the switch module are respectively connected with each photovoltaic string module and each MPPT module; the current acquisition module is used for acquiring the current magnitude of each photovoltaic string module and inputting the current magnitude into the central processing module; and the central processing module is used for controlling the switch of each switch module through the switch control module according to the current of each photovoltaic string module so as to adjust the connection mode between each photovoltaic string module and each MPPT module. The system and the method have the advantages of improving the conversion efficiency of the MPPT modules in cloudy and rainy days or under the condition of weak light, reducing the loss, improving the power generation efficiency and the like.

The invention provides a safe high-voltage switch cabinet and a manufacturing method thereof, the safe high-voltage switch cabinet comprises a cabinet body and a mounting platform, a thin shaft is arranged in the cabinet body, a threaded port is arranged on the inner wall of the cabinet body, the thin shaft is connected in the threaded port, the mounting platform is arranged on the thin shaft, and the thin shaft is connected with the mounting platform. A suction cup electromagnet is arranged between the mounting platform and the thin shaft, parts in the switch cabinet can be conveniently replaced, the suction cup electromagnet is arranged in the switch cabinet, magnetism of the suction cup electromagnet is controlled through power-on and power-off of the suction cup electromagnet, and the mounting platform arranged in the switch cabinet can be conveniently replaced. The installation platform is more convenient to replace, the connection relation of a traditional welding mode is changed, and replacement and maintenance of the installation platform can be easily and efficiently carried out.

The invention discloses a hardware development platform, which comprises a plurality of functional modules and connecting wires, wherein the connecting wires are used for connecting the plurality of functional modules together; and the connecting wires are connected with the functional modules in a freely-detachable manner. In addition, the invention also provides a hardware development method based on the functional modules. Compared with the prior art, the hardware development platform has the advantages that: due to the free-detachable connection manner of the connecting wires, which are connected between the functional modules, and the functional modules, the connection relationship among functional modules can be changed conveniently for correcting wrong connection in a hardware debugging and test process, so that the debugging is convenient and quick and the remaking process of a board and an entire printed circuit board (PCB) is saved; and thus, the hardware development period is shortened greatly and development cost is saved.