76results about How to "Normal work does not affect" patented technology

The invention discloses a control method, device and system for an air conditioner cluster. Among them, the method includes: powering on multiple controllers, obtaining the first controller satisfying the preset condition from the multiple controllers; controlling the first controller to enter the host mode, and controlling the multiple controllers except the first All controllers except the controller enter the slave mode; the first controller working in the master mode controls the work of the air conditioning cluster; detects whether there is an abnormality when the first controller operates as the master controller; if the first controller is detected If an exception occurs, obtain a second controller that meets the preset conditions from multiple controllers other than the first controller; control the second controller to switch from slave mode to master mode; work in master mode The second controller controls the work of the air conditioning cluster. The invention solves the technical problem in the prior art that the main controller of the air conditioning cluster is a fixed controller and cannot be switched.

The invention belongs to the field of numerical control machine tools and discloses a property assessing method based on instruction domain analyzing and of a numerical control machine tool magazine. The method comprises the following steps that (a), pre-set parameters are input to generate a machining instruction; (b), total data of the machine tool is collected through a numerical control system; (c), through an instruction domain analyzing method, a property index of the tool magazine is obtained through calculation; and (d), the property index of the tool magazine is compared with a pre-set property standard, and different assessed results are stored and displayed. According to the property assessing method based on instruction domain analyzing and of the numerical control machine tool magazine, the data are directly collected through the numerical control system, additional hardware devices for datum collecting and transmitting are not needed, normal machining is not affected, deep excavating, efficient using and low cost of a numerical control machine tool instruction sequence are achieved, and the reliable level of the tool magazine is improved.

The invention discloses a detection circuit of a line control circuit of an infrared focal plane reading circuit. The detection circuit comprises a unit gain operation amplifier and a testing circuit. The unit gain operation amplifier comprises an inverted input end, a first in-phase input end, a second in-phase input end and an output end, wherein the first in-phase input end is connected with a detecting circuit of the infrared focal plane reading circuit. The testing circuit is connected with the second in-phase input end of the unit gain operation amplifier. The detection circuit can detect the reading circuit before sensitive picture elements are made through infrared focal plane arrays, unqualified circuits are screened out, and manufacturing cost of the infrared focal plane arrays is saved. When normal work is carried out after the sensitive picture elements are made, the fact that the second in-phase input end does not affect normal work of the unit gain operation amplifier can be guaranteed, and performance attenuation cannot be caused.

The application provides a safe torque off (STO) control circuit and system. The STO control circuit comprises a signal conversion circuit, a first photocoupling circuit, a second photocoupling circuit, a first NOT gate, a second NOT gate, a third NOT gate, a fourth NOT gate, a first RC filter circuit and a second RC filter circuit, wherein the first photocoupling circuit comprises a first resistor, a second resistor, a third resistor, a first capacitor, a second capacitor, a first diode, a second diode, a third diode, a fourth diode, a first voltage stabilization diode and a first isolation photocoupler, and the second photocoupling circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, a third capacitor, a fourth capacitor, a fifth diode, a sixth diode, a seventh diode, an eighth diode, a second voltage stabilization diode and a second isolation photocoupler. In the application, the STO control circuit provided by the invention is used for achieving an STO function and circuit self-detection.

The invention discloses an SEC verification method for an FPGA configuration memory. The SEC verification method comprises the steps of: acquiring and storing a reference ECC verification code; performing ECC check on data in an FPGA configuration memory frame by frame according to the reference ECC check code and modifying error data; and carrying out CRC on the data in the FPGA configuration memory and carrying out data resetting on all frames in the configuration memory when an error occurs. The invention further discloses an SEC verification device for the FPGA configuration memory, whichcomprises a verification code storage module, an SEC verification module, a correction module, a configuration module and an off-chip memory, and is used for executing the SEC verification method. According to the SEC verification method and the SEC verification device, ECC verification and CRC verification are used for carrying out detection and error correction on the data in the FPGA configuration memory when the FPGA chip normally works, and the two verification modes act together, so that the working correctness and stability of the FPGA chip are improved.

The invention discloses an integrated type hydraulic retarder. According to the integrated type hydraulic retarder, an oil sump is arranged under a working cavity; a heat exchanger is arranged on oneaxial side of a fixed rotor; the working cavity is connected with a variable type vane pump; the upper portion and the lower portion of the working cavity are provided with a working cavity oil inletand a working cavity oil outlet respectively; the upper portion and the lower portion of the heat exchanger are provided with a heat exchanger oil outlet and a heat exchanger oil inlet respectively. When the integrated type hydraulic retarder is in work, the working cavity, the variable type vane pump, the heat exchanger and the oil sump can form a main circulating oil way; a master control valveis used for controlling connection and disconnection of the main circulating oil way and controlled to open and close by pressure charging and discharging of a control oil way; a switch valve is usedfor controlling pressure charging and discharging of the control oil way; when the integrated type hydraulic retarder is in work, the switch valve and the master control valve are opened; when the integrated type hydraulic retarder stops working, the switch valve and the master control valve are closed, and the control oil way and the main circulating oil way are disconnected. The integrated typehydraulic retarder saves vehicle air source control and is high in response speed, stable in control and high in precision.

The invention discloses a computer hardware monitoring system based on a UNIX operating system. The system comprises a plurality of computers to be monitored and a monitoring terminal, wherein the computers to be monitored perform wireless data communication with the monitoring terminal; a driving module, a database, a monitoring module, a fault diagnosis module and a repair module are arranged in the monitoring terminal; a UNIX operating system, a testing program and testing software are arranged in the database. The computers to be monitored perform wireless data communication with the monitoring terminal, the UNIX operating system is operated in the computers to be monitored, the testing program and the testing software are input into the computers, computer hardware is monitored in real time through the monitoring module, once a fault is found, the fault diagnosis module is informed to diagnose the hardware, reasons of faults and methods for solving the faults are output, and the hardware is repaired through the repair module.

The invention discloses a surface pre-oxidation device and method for improving vapor oxidation resistance of a heat resisting material. Ar / O3 mixed gas containing a trace amount of ozone reacts with heat resisting steel or an alloy pipe panel interface at 0-40 DEG C, and the element Cr is oxidized into a dense Cr-rich oxidation film so as to effectively prevent oxygen ions or hydroxide ions from spreading towards the heat resisting steel and an alloy matrix, and prevent metal iron ions from spreading towards the oxide and vapor interface. The device can be applied to surface pre-oxidation treatment of a power station boiler or vapor generator manufacturing plant after pipe bundle or pipeline processing, and can also be applied to surface pre-oxidation treatment of pipe bundles or pipelines of a power station boiler or a vapor generator after assembling but before operation, the pipe bundles or the pipelines do not need to be detached before a unit operates, and cyclic pre-oxidation of inert gas / O3 is carried out only through inlet and outlet collection tanks of superheater or reheater pipe bundles. According to the surface pre-oxidation device and method, the principle is simple, implementation is easy, and the application prospects are broad.

The invention discloses a band-gap reference starting circuit with super-low leakage current, which comprises a PMOS (P-channel Metal Oxide Semiconductor) pipe at high length-width ratio, a current mirror and an NMOS (N-channel Metal Oxide Semiconductor) switch, wherein the PMOS pipe at the high length-width ratio is used as a resistor, the NMOS switch is connected with an input end of a band-gap reference core circuit, and the current mirror is connected with an output end of the band-gap reference core circuit. According to the band-gap reference starting circuit, the NMOS switch is adopted, so that the starting speed is higher than that of the PMOS switch; after the band-gap reference core circuit normally operates, the NMOS switch is turned off, the gate source voltage of the NMOS switch is the negative voltage, so that the turn-off effect is more obvious, leakage current at any process corner and any temperature can be lower than the Pian grade, the affection of the leakage current on reference source current can be omitted, other branches of the starting circuit are still in a conducting state, however, the static current of the starting circuit is very small; in addition, the PMOS pipe resistor replaces a conventional passive resistor, and therefore, the area of a chip is saved.

The invention discloses an electromagnetic shield device of a liquid capacitive type sensor. The electromagnetic shield device is a metal hollow cavity body with certain thickness, and the liquid capacitor type sensor is arranged inside the hollow cavity of the shield. The shield is provided with a plurality of circular holes A on the side wall, the outer side on the side wall of the shield extends along the axial direction of the circular holes A to form a cylinder A, and the extending end port of the cylinder A is a sealed port. The side wall of the cylinder A is provided with a circular hole B, the outer side on the side wall of the cylinder A extends along the axial direction of the circular hole B to form a cylinder B perpendicular to the cylinder A axially, and the end port of the cylinder B is an opening. The device greatly increases the shielding effect by using the length of dielectric waveguide and the standing wave property of electromagnetic wave. The device can resist the outside electromagnetic interference for the liquid capacitive type sensor, and ensures that the liquid capacitive type sensor work normally under the electromagnetic radiation. Meanwhile, the shield does not affect the normal operation of the liquid sensor.

The invention discloses an aero-engine which comprises a turbine, the turbine comprises a rotor and a stator, the aero-engine further comprises a shaft failure speed limiting device arranged between the rotor and the stator, and the shaft failure speed limiting device comprises a pulling part fixedly connected to the rotor; the distance piece is arranged on the stator; the locking piece is arranged on the stator; the shaft failure speed limiting device is configured in the mode that when a turbine works normally, a locking piece is located at a locking piece first position relative to a stator, a spacing part of a spacing piece is kept at a spacing part first position relative to the stator, and gaps are kept between a pulling part and the locking piece and between the pulling part and the spacing piece; when a turbine shaft failure working condition occurs in the turbine and a movable blade of the turbine moves towards the downstream of the gas flowing direction in the axial direction, the pulling part pulls the locking piece to move towards the downstream of the gas flowing direction in the axial direction to the locking piece second position, the spacing part of the spacing piece moves to the spacing part second position, and at the spacing part second position, the movable blade of the turbine moves towards the downstream of the gas flowing direction in the axial direction. The spacing part is located on the upstream of the pulling part and located between the pulling part and the stator in the axial direction.

The invention discloses a highly waterproof liquid crystal display assembly, which belongs to the field of liquid crystal display assemblies. In a highly waterproof liquid crystal display assembly, during the normal operation of the main body of the liquid crystal display, the hot air in the waterproof box can be normally exchanged with the liquid crystal display assembly. Heat exchange occurs with the outside air. At this time, the heat dissipation effect is the best, and the electronic components in the main body of the LCD display are in the best working condition. When a water ingress accident occurs through the through hole in the waterproof box, the space on the lower side of the partition plate passes through the slide bar. There is heat exchange with the outside world. At this time, the heat dissipation effect is the worst, but the heat accumulated in the waterproof box is not easy to affect the normal work. As the sealing time of the sealing hole increases, the heat accumulated in the waterproof box increases. At this time, the gas in the waterproof box can The heat exchange with the outside is carried out through the heat dissipation auxiliary hole on the heat dissipation pipe, the heat dissipation effect is better, the heat accumulated in the waterproof box is greatly reduced, and the waterproof effect of the main body of the liquid crystal display is greatly increased.