97 results about "Target reaching" patented technology

The invention discloses an optimal track planning method for a space robot for capturing a rolling target. The method comprises the steps that a motion equation of the space robot and the rolling target is set up; a solution algorithm of the work space of the space robot and a determining rule of the optimal capturing opportunity are provided; the optimal capturing track of a mechanical arm end effector is obtained, finally, the effectiveness of the method is verified through examples. According to the determining rule of the optimal capturing opportunity, it can be guaranteed that capturing occurs in the path-independent work space of the space robot, and therefore a dynamics singular problem is avoided. According to the optimal capturing track, obtained based on the optimal control theory, of the mechanical arm end effector, it can be guaranteed that the end effector and a capturing point on the target reach the same position at the identical speed, and therefore collision force generated during capturing is minimum.

O-A-O biochemical technology is used by this ivention. In preaeration period, large quantity of COD effecting microbe activity and organic substances are removed. In second stage biochemical processing period, microbe indusium and carrier are added in to control ammonia-nitrogen is less than 15 mg/L, COD is less than 100 mg/L in coaking waste water, the other targets reach national first-level discharge standard.

The invention relates to a test method for simulating the combined load effect of explosive shock waves and high-speed fragment groups formed after close-range explosion of a weapon warhead. The test method includes the five steps of 1, determining the size of a scaled-down warhead model, calculating the initial speed of fragments, the number of the target-reaching fragments of target structures and the mass distribution of the fragments after explosion occurs, and calculating the mass, the size and the number of equivalent preformed fragments; 2, manufacturing the equivalent preformed fragments in the step 1; 3, determining the propellant types of equivalent propellants such as the propellant kind, the propellant shape and the propellant size; 4, manufacturing the equivalent propellants in the step 3; and 5, assembling the equivalent preformed fragments in the step 2, the equivalent propellants in the step 4 and detonating electric detonators for forming an equivalent scaled-down warhead.

The invention discloses a multi-mode cooperative control method and system for a resonant micro-gyroscope and the resonant micro-gyroscope. The method comprises the steps: generating a drive control signal and a detection control signal through system control parameters, modulating the drive control signal and the detection control signal, adding the modulated signals to a drive electrode and a detection electrode, and transmitting a low-order excitation signal to excite a resonant structure to vibrate in a working mode; after normal working of a gyroscope, presetting pumping parameters to generate a pumping signal, adding the pumping signal to a pumping electrode, sending a sideband excitation signal, and exciting a high-order coupling mode; analyzing the motion state of the gyroscope working mode to obtain a real-time quality factor; when a difference between a real-time quality factor and a target is greater than a threshold value, adjusting a driving control parameter, a detectioncontrol parameter and the pumping parameter according to a gyroscope response signal, and repeating the above steps until the difference between the real-time quality factor and the target reaches thethreshold value; and complete quality factor adjustment. The method is used for solving a problem that the quality factor of the gyroscope cannot be dynamically regulated in the prior art, realizingregulation and improving the mechanical sensitivity of the gyroscope.

The invention discloses a method for removing broadband noise interference signal cross positioning false points, belonging to the field of electronic reconnaissance. The self-correlation property ofthe broadband noise signals is utilized, the false points generated by the direction-finding cross positioning are eliminated, and the three-dimensional positioning problem is solved by utilizing twoobservation stations. The method comprises performing the target position estimation by means of the orientation and pitching angle information obtained by the direction finding of a radiation sourceby utilizing a high-precision direction finding device; calculating the time difference of the signals which can be transmitted by the estimation point to the two observation stations by means of theposition relation between the estimation point and the observation stations; sampling the signals received by the two observation stations integrally, performing the cross-correlation operation on thepremise that the mixed signals are not separated to obtain the time difference information of the real target reaching the two observation stations; and taking the time difference measurement error as a threshold value, comparing the time different information one by one, and screening out the real target to obtain the coordinate position. According to the invention, the signal characteristic isfully utilized, and the signal processing process is simplified.

The invention provides a pressure-reducing drying device, a substrate processing device and a pressure-reducing drying method. The pressure-reducing drying device comprises a cavity accommodating a substrate, a pressure-reducing air-exhausting unit carrying out pressure-reducing air-exhausting on the inside of the cavity, a valve positioned between the cavity and the pressure-reducing air-exhausting unit which can adjust the flow of pressure-reducing and air-exhausting through an aperture of the valve, a learning unit obtaining pressure-reducing line data showing pressure changes due to pressure-reducing and air-exhausting in the cavity in accordance with the prescribed apertures of the valve, an input unit, in which target pressure values and target arriving time are input, and a control portion controlling the apertures of the valve and adjusting the apertures of the valve on the basis of pressure-reducing curve data, the input target pressure values and the target reaching time. The pressure-reducing can be carried out at a pressure-reducing speed closer to a required pressure-reducing speed.

The invention relates to a heavy metal-polluted ephemeral stream sediment dredging method, which includes the following steps: (1) unit constructions are divided on a whole target reach; (2) the whole dredged target reach is enclosed by sectional cofferdams, the divided unit constructions are isolated from one another by unit cofferdams, and diversion canals are arranged at both sides of the central line of a riverway or a diversion canal is arranged at one side of the central line of the riverway; (3) a riverway sediment storage pond and an accidental sediment storage pond are built in each unit construction, sludge lift pumps are installed in the riverway sediment storage ponds, and accidental sludge lift pumps are installed in the accidental sediment storage ponds; (4) unit construction dredging is started, high-pressure flushing water pumps or earthwork machines are adopted to carry out the construction dredging on sediment according to dredging range and dredging depth requirements or the earthwork machines are utilized to carry out excavation, and the flushed or dug polluted sediment is conveyed to a specified position on a bank. The method is sufficiently combined with the hydrological conditions of the ephemeral stream, construction conditions and the control requirements of heavy metal-polluted sediment dredging, and is highly purposeful.

The invention relates to a train approach early-warning system and method for railway safety protection. The train approach early-warning system comprises locomotive radios installed on each train andused for acquiring positioning information from GPS modules on respective trains, a plurality of hand-held radios used for sending real-time positioning information of early-warning targets corresponding to each hand-held radio to early-warning servers through an alarm channel and receiving the warning information issued by the early-warning servers, and the early-warning servers deployed in respective station duty rooms and used for communicating with each hand-held radio through the alarm channel and monitoring the real-time position of each early-warning target and the running informationof on-line running trains in real time, and simultaneously transmitting warning information to the warning targets when the distance between the on-line running trains and a certain warning target reaches the predetermined early-warning range. The train approach early-warning system can accurately judge whether the train enters the early-warning position, and can maximally guarantee the safe evacuation of the early-warning targets from the scene after an early warning is generated.

The invention discloses a method for fully-automatically catching near earth and medium and high orbit space targets in real time. The method comprises the following steps of: (1) acquiring forecast information according to a known orbit space target, and making a telescope reach a preset position to wait; (2) before the orbit space target reaches, moving the telescope along the moving speed direction of the space target in advance, acquiring a charge coupled device (CCD) image during movement so as to outstand the distinction degree of a fixed star and a space target star on the CCD image; (3) performing real-time all-visual field scanning on the acquired image to obtain the suspect space target; (4) using the prior information of a known orbit to discriminate to obtain the correct space target; and (5) automatically catching the space target and precisely tracing the space target. An optical observation telescope can automatically catch, trace and measure the near earth and medium and high orbit space targets in real time by the method under the condition that the optical observation telescope is not manually interfered. The method is good in practical processing effect and can be widely applied to the monitoring on the near earth and medium and high orbit space targets.

Systems and methods for reducing variance in reach of wavelength division multiplexed (WDM) channels in optical transport networks may include selecting, for each channel assigned to a respective wavelength, an initial modulation format and an initial distribution of constellation points in the complex plane, determining a target reach for all WDM channels that is achievable by higher wavelength channels but not by shorter wavelength channels, and applying one or more reach extension techniques to at least one shorter wavelength channel but not to the higher wavelength channels. The reach extension techniques may include probabilistic constellation shaping, symbol rate optimized subcarrier multiplexing, or a combination of the two. Transponders may be configurable to transmit or receive traffic over the WDM channels with or without implementing the reach extension techniques, as applicable.

An X-ray generating apparatus controls driving of an X-ray tube. The X-ray tube includes an electron source emitting electrons due to application of a voltage, a transmission-type target generating an X-ray due to collision of electrons emitted from the electron source, and a shield member disposed between the electron source and the transmission-type target, the shield member having an opening that electrons emitted from the electron source pass through, and blocking an X-ray that scatters toward the electron source. When generating the X-ray, application of a voltage to the transmission-type target is started, and emission of electrons from the electron source is caused after passage of a predetermined period indicating a time period from starting voltage application until the transmission-type target reaches a predetermined voltage. When stopping X-ray generation, application of the voltage to the transmission-type target is stopped after stopping the emission of electrons from the electron source.

A system, device and method for firearms training comprises one or more projectors that project an image such as a clay target, or other target to a backdrop. A user tracks and/or aims for the projected target using a firearm comprising a camera and a camera activation device. When the target reaches a desirable location and the proper alignment of the firearm takes place, the user presses a trigger of a firearm in order to take an image and establish a recording time mark of the area in view of the camera as the camera sees at the moment in time. The camera comprises a preprogrammed template of the expected target, and the captured image is processed in order to determine whether the captured image matches all of the projected image or a part of the projected image. A response is activated to indicate that the target has been struck or missed.

The invention relates to a light driven ultrasonic probe and an ultrasonic imaging system thereof. A Fabry-Perot (F-P) cavity (106) which receives ultrasonic signals is positioned in the center of anphoto-acoustic emitter (101). The photo-acoustic emitter (101) comprises a photo-acoustic conversion film (102) generating ultrasound, a transparent substrate (103), and a support pedestal (104) whichsupporting the photo-acoustic conversion film (102) and the transparent substrate (103). The upper surface of the transparent substrate (103) is coated with the photo-acoustic conversion film (102),and the lower surface of the transparent substrate (103) is welded to the front surface of the support pedestal (104). A light absorption layer and a thermo-elastic layer are deposited successively inthe upper surface of the transparent substrate. The ultrasonic imaging system of the light driven ultrasonic probe is used to convert an array pulse laser beam into pulse ultrasound, and radiate theultrasound on a target. Ultrasonic echoes reflected from the target reaches the F-P cavity of the light driven ultrasonic probe, detection laser enters the head of the F-P cavity, and cavity length change caused by ultrasonic pressure of the F-P cavity is detected.

The invention provides a preparation method of a chromium tantalum titanium alloy sputtering target, the chromium tantalum titanium alloy sputtering target and application, and relates to the technical field of sputtering targets. The preparation method of the chromium tantalum titanium alloy sputtering target comprises the following steps: a mixture of chromium powder, tantalum powder and titanium powder is provided for isostatic cool pressing to obtain a blank; then, the blank is degassed in vacuum; and finally, the hot isostatic pressing is performed on the blank after vacuum degassing to obtain the chromium tantalum titanium alloy sputtering target. The method improves the technical problems in application of the chromium tantalum titanium alloy sputtering target prepared through a hotpressing method or a vacuum smelting method; the chromium tantalum titanium alloy sputtering target is prepared through performing the isostatic cool pressing, the vacuum degassing and the hot isostatic pressing on the mixture of the chromium powder, the tantalum powder and the titanium powder in sequence; and the prepared chromium tantalum titanium alloy sputtering target reaches the compactnessof higher than 99%, is uniform in component, free of air hole and excellent in machining performance, and can guarantee the performances of a magnetic medium substance layer.

The invention discloses an ultrahigh vacuum magnetron sputtering rectangular plane sputtering target, which comprises a cooling pipe (6) which runs through a mounting flange (1) and is connected with water-cooling cavity parts (5) in a target shielding cover (3). Especially, (a): the cooling pipe (6) is connected with the mounting flange (1) by a sealing part (2) of the cooling pipe; (b), the water-cooling cavity parts (5) are an upper flange (511) and a lower flange (512) of the water-cooling cavity which are connected with a screw (53) by a sealing ring (52); the lower flange (512) of the water-cooling cavity is internally provided with a soft iron (58) and a permanent magnet (54); the cooling pipe (6) is communicated with the water-cooling cavity parts by welding after running through the bottom of the water-cooling cavity parts; a nut (57) is against and connected with an insulating sleeve gasket (56) sheathed on the outside of the cooling pipe by the external thread of the cooling pipe (6) in a pressing way; (c), the rectangular plane sputtering target further comprises at least one supporting screw (10) and a sealing part (7) of the supporting screw which is connected with the supporting screw in a matching way. The vacuum degree of the ultrahigh vacuum magnetron sputtering rectangular plane sputtering target reaches up to more than 6*10<-6>Pa, which can be used for high-quality coating of work pieces with large surface area.

The invention discloses a method for performing waveform optimization on a motion target in a complex clutter environment. The method includes calculating a motion target model having constant radialvelocity, and determining static clutter response and motion clutter response in a complex clutter environment; obtaining the optimal waveform of a noise characteristic based echo signal facing detection probability according to a Neyman-Pearson criterion; and obtaining the optimal energy spectral density (ESD) of an emission signal according to the minimum value of power spectral density (PSD) inthe noise characteristics. Through prior information such as static clutter, motion clutter and targets, the method can design an energy spectrum of the emission signal and detect a motion target byutilizing the optimal waveform in the case of different noise; and compared with traditional linear frequency modulation and phase encoding signals, the method can make the detection probability facing to the motion target reach to the maximum in the case of the same false alarm probability.

The invention provides a hypersonic speed isolation section optimization design method and system. The hypersonic speed isolation section optimization design method comprises the steps of extracting molded lines of an air inlet channel outlet and a combustion chamber inlet to obtain an isolation section inlet and an isolation section outlet; dividing the inlet of the isolation section into A1A2, A2A3,..., AnA<n+1>, and dividing the outlet of the isolation section into B1B2, B2B3,..., BnB<n+1>; obtaining a jth on-way transition molded line CijC<(i+1)j> of AiA<i+1> to BiB<i+1> smooth transition,and integrating CijC<(i+1)j> to obtain a jth on-way transition section of smooth transition from an isolation section inlet to an isolation section outlet; acquiring a bias control line, and assembling all the transition sections on corresponding bias points in the bias control line to obtain a three-dimensional variable cross-section bending isolation section; and generating a grid from the three-dimensional variable cross-section bending isolation section, performing cyclic simulation, and adjusting the value of the control parameter by adopting an optimization algorithm until a simulationoptimization target reaches convergence. And the defects of optimization design of an isolation section in the prior art are effectively overcome. The method is applied to the technical field of hypersonic engines.

An automobile servomotor controller includes a master side amplifier unit having an amplifier side control circuit for transmitting a designation signal and a slave side motor unit having an actuator side control circuit which controls driving of a motor by outputting an operation signal to a driving device depending upon said designation signal. The slave side motor unit is constructed by a same feedback control unit having a non-feedback control unit for inhibiting the operation of the motor until a target is changed by an input of a new designation signal with a target reached state and a feedback control unit for driving the motor to be reached to a target state by detecting a present value with a present value detecting device, and a control inhibiting signal for inhibiting the feedback control is individually provided to the designation signal transmitted from the amplifier side control circuit to the non-feedback control unit.

The present invention provides an MIMO harmonic radar, which comprises a transmitting end: respectively transmitting a transmitting signal T<X1> with the frequency of f1 and a transmitting signal T<X2> with the frequency of f2 to an electronic target; a receiving end: receiving an echo generated after the electronic target is re-radiated by using a multi-channel mode, filtering the echo of other frequencies by using a band-pass filter to obtain a combined wave signal after the electronic target reaching the receiving end is re-radiated, and then performing zero intermediate frequency processing and fast inverse Fourier transform to obtain the distance position information of each channel; and a imaging module: carrying out beam forming on the waveform with the distance information receivedby each channel by utilizing a digital beam forming technology according to the obtained distance position information of each channel, and obtaining and outputting target imaging. The MIMO harmonicradar effectively improves the isolation of the system, reduces the complexity of system design and effectively improves the capability of the harmonic radar for detecting weak targets.

The invention discloses a multi-degree-of-freedom delivery ground system based on geomagnetic energy storage and release, which comprises a supporting through shaft magnetic moment generation device and an attitude control module, wherein a first target delivery assembly and a second target delivery assembly are coaxially and rotatably mounted on a shaft body, located at the top of a double-bearing device, of a supporting through shaft; the first target delivery assembly and the second target delivery assembly are both used for installing and releasing a delivery target, and the delivery method comprises the steps that the magnetic moment generating device is configured to start to rotate under the action of magnetic moment under the action of a geomagnetic field after working current is introduced; the double-bearing device is used for providing a follow-up state for the supporting through shaft; the first target delivery assembly and the second target delivery assembly are configured to receive the rotation starting signal of the magnetic moment generation device and then rotate oppositely with the supporting through shaft as a rotating shaft, and when the linear speed of the delivery target reaches the linear speed set by the system, the delivery target is released; the principle verification of the geomagnetic energy storage and release delivery system in a microgravity environment is realized.