8results about How to "Improve spatial freedom" patented technology

The utility model relates to the technical field of computers, and discloses a computer all-in-one machine with an auxiliary screen, which comprises the auxiliary screen, an auxiliary screen connecting plate and an all-in-one machine main body provided with a main screen, and one end of the auxiliary screen connecting plate is rotatably connected with an all-in-one machine base of the all-in-one machine main body through a first rotating shaft. The other end of the auxiliary screen connecting plate rotates with the auxiliary screen through a second rotating shaft so as to adjust the relative position of the auxiliary screen and the all-in-one machine base; when the auxiliary screen abuts against the base of the all-in-one machine, the auxiliary screen and the main screen can form double-screen display, and when the auxiliary screen is horizontally arranged and the display face is upward, the auxiliary screen can be used as an electronic drawing board or a virtual keyboard. The auxiliary screen is rotationally connected with the auxiliary screen connecting plate through the second rotating shaft, the auxiliary screen connecting plate is rotationally connected with the all-in-one machine base through the first rotating shaft, the space adjustment freedom degree of the auxiliary screen is high, the auxiliary screen can abut against the all-in-one machine base and be matched with the main screen to form double-splicing display, the auxiliary screen can be horizontally arranged to serve as an electronic drawing board or a virtual keyboard, functionality is high, and the practicability is high. And carrying and storage are convenient.

The invention discloses a method for increasing the degree of freedom of a component index in a two-dimensional orthogonal spatial dimension. The method comprises the following steps of: 1, giving the number of transmitting antennas of a transmitting end of a wireless communication system; step 2, obtaining a zero emission space vector symbol of an emission antenna; step 3, separating a real part space and an imaginary part space in a zero emission vector symbol, and then splicing the real part space and the imaginary part space together; 4, setting the number of modulated component space index vectors; 5, obtaining a calculation formula of the number of bits carrying the component space index information; step 6, activating the position corresponding to the component index number in the zero component index space vector under the assistance of the component index bit number; and step 7, modulating components of the multi-dimensional signal constellation points to obtain a transmitting space vector and a total extra information bit number which can be carried by the transmitting space vector. The number of the transmitting antennas can be any numerical value; according to the invention, the spatial degree of freedom of component modulation in constellation points is expanded, so that the capability of carrying index bit extra information is improved.

The invention discloses a glass cutting machine, and relates to the technical field of glass cutting. The device specifically comprises a base, supporting plates are fixedly connected to the two sides of the top of the base, a cutting mechanism is fixedly connected to the outer walls of the tops of the supporting plates, a fixing seat is fixedly connected to the outer wall of the top of the side, close to the cutting mechanism, of the base, an adjusting mechanism is arranged on the opposite side of the fixing seat, and a moving mechanism is arranged on the side, close to the adjusting mechanism, of the base; a driving mechanism is arranged on the side, close to the moving mechanism, of the base, the output end of the driving mechanism is in linkage with the moving end of the moving mechanism, the moving mechanism comprises a V-shaped plate, a moving plate, a sliding groove and limiting plates, the sliding groove is formed in the top of the base, and the limiting plates are fixedly connected to the top outer walls, close to the two sides of the sliding groove, of the base. According to the device, the cutting efficiency of the cylindrical structure glass is guaranteed, the heating intensity of the electric heating wire can be reduced when the cylindrical structure glass is taken down, the effect of protecting people is achieved, the practicability is high, and the whole device is convenient to carry and high in spatial freedom degree.

The present invention discloses a method for designing a double-end compensation network of a WPT system with strong anti-offset performance, comprising the following steps: first, establishing a WPT system based on an SS compensation topology; second, introducing an inverse G-type compensation network at a detuned transmitting end of the WPT system; and third, introducing an impedance inversion network between the compensation network and a load at a receiving end of the WPT system to complete the double-end design of the WPT system. The present invention introduces an inverse G-type compensation network at a transmitting end and an impedance inversion network at a receiving end, so that the WPT system can achieve an output power level equivalent to that of a full-resonance SS network at an optimal coupling coefficient, and realizes that the output power fluctuation degree of the receiving end can be arbitrarily configured, thereby improving the output power level of the system, and at the same time realizes the stability of the output power within a wide coupling coefficient range, thereby expanding the spatial freedom of the power receiving device.

The present invention discloses a phase-programmable three-dimensional metamaterial unit, which comprises three layers from top to bottom: a three-dimensional structure layer, a dielectric substrate layer and a metal substrate structure layer. The unit's ability to regulate electromagnetic waves is improved by increasing the spatial degree of freedom of the structure, and the three-dimensional structure enables the phase-programmable three-dimensional metamaterial unit to operate in a frequency band of 5.9 GHz to 9 GHz, covering part of the 6 GHz spectrum (5925-7125 MHz), laying a solid foundation for future 5.5G / 6G communications. The phase-programmable three-dimensional metamaterial unit has a strong practical application background, can perform real-time programming and regulation on the reflection phase of electromagnetic waves, and then accurately control the propagation direction of electromagnetic waves, and realize flexible use under various working conditions, thereby reducing material processing loss and improving processing accuracy, providing a means for large-scale production of phase-programmable three-dimensional metamaterial units to reduce production costs.

An integrated system for uninterrupted power delivery via an electromagnetically controlled dual-motor three-speed drive includes a first motor, a first planetary gear set, and a first shift group connected in sequence, as well as a second motor, a second planetary gear set, and a second shift group connected in sequence. It also includes an output shaft, with both the first and second shift groups connected to the output shaft to output power. The first motor is connected to the first planetary gear set via a first input shaft, the first planetary gear set is connected to the first shift group via a first intermediate shaft, and the first shift group is connected to the output shaft via a driven gear set. The second motor is connected to the second planetary gear set via a second input shaft, the second planetary gear set is connected to the second shift group via a second intermediate shaft, and the second shift group is also connected to the output shaft via a driven gear set. This invention, through the ingenious combination of planetary gear sets and parallel shafts, achieves a minimization of size while maintaining powerful functionality, providing greater spatial freedom for vehicle design.

The invention discloses a hot melting drilling tool suitable for an ice layer containing impurities, and belongs to the technical field of ice layer hot melting detection, and the hot melting drilling tool comprises a hot melting drill bit, a front end crawling mechanism, a scientific detection cavity, a deflection mechanism, a rear end crawling mechanism and a tail end mechanism. The front-end crawling mechanism drives the hot melt drill bit to rotate and is used for preventing impurity particles from gathering at the hole bottom, and the drilling efficiency is improved. One end of the scientific detection cavity is connected with the front-end crawling mechanism, the other end is connected with the deflection mechanism, and a corresponding scientific detection device is carried in the scientific detection cavity for sampling and data acquisition. The deflection mechanism is used for deflection among the mechanisms of the hot melting drilling tool, the rear end crawling mechanism in the hot melting drilling tool can enable the drilling tool to crawl on a large rock and an ice surface, and the spatial freedom degree of the drilling tool is improved. Two drilling modes of hot melt drilling and rotary drilling can be achieved, the deflection mechanism and the rear end crawling mechanism are matched with each other, drilling of the hot melt drilling tool under various geological conditions is met, the flexibility and reliability of the drilling tool are improved, and the purpose of large-depth detection is achieved.

The invention discloses a non-Gaussian signal DOA (direction of arrival) estimation method based on a three-level nested array vectorization DFT-Taylor algorithm. The method comprises the following steps: establishing a DOA estimation model oriented to a non-Gaussian signal; constructing a sparse array model with a three-layer nesting relation, wherein the sparse array model is a three-level nesting array; calculating a fourth-order cumulant matrix of the received signal, vectorizing the fourth-order cumulant matrix, sequencing and removing redundancy to obtain a vector z; intercepting a vector z, obtaining a part z1 corresponding to a continuous virtual array element range [-Mb, Mb], constructing a matrix F, solving a DFT initial estimation value # imgabs0 #, and constructing a phase rotation matrix phi (eta); and searching the phase deviation in a range (-pi / T, pi / T) to obtain an optimal phase deviation amount, performing error compensation on an angle estimation value # imgabs1 # subjected to DFT fine estimation after phase rotation based on Taylor expansion, and performing calculation to obtain a final angle estimation value of a DFT-Taylor algorithm by combining the angle estimation value subjected to DFT fine estimation and the error compensation. The method has the advantages of low calculation complexity and reliable result.