32results about How to "Wide range of scenes" patented technology

The invention provides a support combination which comprises a first guide rail and a second guide rail. The first guide rail is of a U-shaped groove structure and comprises a first guide rail wall and a first slot, the first guide rail wall is provided with at least one pair of first installation holes, the second guide rail is a U-shaped groove mechanism and comprises a second guide rail wall and a second slot, and the second guide rail wall is provided with at least one pair of second installation holes. The support combination is characterized in that the width of the first slot is largerthan the width of the second guide rail, one end of the second guide rail is placed in the first slot, and the first guide rail and the second guide rail oppositely penetrate through the first installation holes and the second installation holes through opposite penetrating bolts to be fixedly connected. An installation method is easy, a constructor can conveniently inspect bolt installation and fastening conditions, quality testing and maintenance are facilitated for the support combination, and potential safety hazards are eliminated in time.

The invention discloses a POSS-rhein fluorescent probe for detecting magnesium ions and a preparation method thereof, belonging to the technical field of chemical detection. The preparation method of POSS-rhein fluorescent probe provided by the present invention is: take POSS-NH 3 Cl powder was dissolved in methanol and passed through an anion resin column to obtain POSS‑NH 2 methanol solution; then take rhein and add it to POSS‑NH 2 The methanol solution was stirred at room temperature to react, and the color of the reaction solution changed from yellow to orange; after dialysis with a dialysis bag, the solvent was evaporated using a rotary evaporator to obtain a purple powder, which was the POSS-rhein fluorescent probe. The fluorescent probe has excellent selectivity and sensitivity to magnesium ions, is environmentally friendly and non-toxic, and has broad application prospects.

The invention discloses a horizontal blowout plasma fuel ignition device for an ocean drilling platform, and relates to the technical field of ocean drilling platform equipment. The horizontal blowout plasma fuel ignition device for offshore drilling platforms includes a blowout ignition device body, a monitoring steering mechanism, a protection mechanism and an anti-backfire component. The fire assembly includes a sweeping mechanism and an absorbing mechanism. The horizontal spray plasma fuel ignition device for offshore drilling platforms can clean the fuel impurities accumulated at the output end of the ignition rod, and the collection tube, micro air pump, interception plate and connecting hose can be installed to improve the cleaning efficiency And the effect is that it can collect the cleaned impurities, avoid the blockage of the output end of the ignition rod, and reduce the possibility of "backfire" or "air explosion" caused by the blockage of impurities.

The invention provides an antenna conformal to the handle, comprising: a radiator in the shape of a rod, one end of the radiator is rotatably installed on the outer wall of the door of an unattended terminal equipment box, and the other end of the radiator is bent Folded into the shape of the door handle of the radiator; the feeder cable is arranged inside the terminal equipment box, the inner conductor of the feeder cable is electrically connected to the radiator, and the outer conductor of the feeder cable is electrically connected to the terminal equipment box . The antenna can be multiplexed with the door handle on the door of the unattended equipment terminal box, that is, it serves as a handle structurally and as an antenna on the radio frequency to realize communication between the equipment terminal and the base station. Compared with the existing antenna scheme, the antenna has a low section height, high structural strength, and is installed with fasteners, so the structural reliability is strong; in terms of electrical performance, the antenna can achieve omnidirectional radiation, and introduces horizontal polarization components to improve the robustness of the communication system.

The invention provides a structured light projection module and a depth camera. The structured light projection module comprises a light source array, a lens, and a diffraction optical element, the light source array includes a first sub-light source array and a second sub-light source array that can be independently controlled, the first / second sub-light source array comprises a plurality of sub-sources arranged in a first / second two-dimensional pattern for emitting a first / second array beam corresponding to the first / second two-dimensional pattern, the lens is used for receiving and converging the first and / or second sub-array light beam(s); the diffraction optical element is used for receiving the first and / or second sub-array light beam(s) which are / is emitted after being converged bythe lens and projecting the first and / or second structured light spot patterned light beam(s) corresponding to the first and / or second sub-array light beam(s), and the sub-structured light spot pattern is formed by spreading and arranging a plurality of sub-spot patterns generated by the plurality of sub-light sources. According to the invention, the non-correlation degree and the density of the structured light pattern are uniformly distributed, the structure light spot pattern with different projection areas and different densities can be generated, and the application is wider.

The invention provides a data deterministic deletion method based on random negation of a data block. According to the method, by carrying out block encryption on cleartext data and carrying out an operation of random position negation on cleartext, a cloud end does not store the complete cleartext. The method is wide in application condition, and allows a key to be leaked in an active or passivecase, and thus, a method of encrypting each cleartext data block by a single key is adopted and key preservation cost is reduced. Compared to other data deterministic deletion schemes, the method is briefer in step and wider in application condition.

The invention provides a battery double-circuit power supply resonant AC heating system, a control method and a battery system. The battery double-path power supply resonant AC heating system comprises a first bridge arm, a second bridge arm and two groups of resonant branches, where the first bridge arm comprises a first power switch tube group consisting of a plurality of power switch tubes, a drain electrode of the first power switch tube group is connected with a positive electrode of a battery, and a source electrode is connected with a negative electrode of the battery; the second bridgearm comprises a second power switch tube group consisting of a plurality of power switch tubes, wherein the drain electrode of the second power switch tube group is connected with the positive electrode of the battery, and the source electrode is connected with the negative electrode of the battery; one ends of two groups of resonant branches are connected with the neutral points of the bridge arms, and the other ends of the two groups of resonant branches are connected with the neutral point of the battery; and the two bridge arms are driven by two sets of complementary PWM signals. The problems that the heating speed is slow, the effect is poor, the efficiency is low and the like in the existing battery heating method in the low-temperature environment are solved, an external charging pile or a battery can be flexibly applied to provide heating energy, and the application range and the scene are wide.

The present invention provides a communication signal modulation recognition method for evolution of BP neural network by quantum elephant group mechanism, and designs a weighted Myriad filter combined with the data set of designed characteristic parameters, and then utilizes quantum elephant group mechanism to evolve BP neural network to obtain neural network The optimal system parameters of , using the BP neural network with optimal weights and thresholds as a classifier to efficiently identify the modulation mode of communication signals under the background of impact noise. The designed method can obtain the optimal network parameters and classification recognition effect in the impact noise environment, so as to obtain a higher recognition rate in the harsh environment such as impact noise and low mixed signal-to-noise ratio, and break through the application of the existing neural network modulation recognition limit.