9 results about "Effective height" patented technology

The invention relates to an intelligent scheduling method and system based on a rule base. The method comprises the following steps: measuring a reference signal receiving power value of an unmanned aerial vehicle and outputting a signal attenuation map; acquiring a signal attenuation value based on the signal attenuation map, inverting the effective width and the effective height of the leg based on the signal attenuation value, and calculating the effective space of the leg based on the leg length, the effective width and the effective length; adopting a corresponding minimum safety distance based on a preset scene library; and dynamically adjusting the unmanned aerial vehicle queue based on the minimum safety distance. According to the method, the attenuation signal spectrum is output through the reference signal receiving power value of the unmanned aerial vehicle, the signal attenuation value is obtained based on the attenuation signal spectrum, the effective width and the effective height of the leg are inverted through the signal attenuation value, the effective space of the leg is calculated, and the corresponding minimum safety distance is selected based on the scene of the leg. And the capacity utilization efficiency is improved.

A system and a procedure are provided to simplify the safe transport of a work machine. During the transport phase of the work machine, in which it is positioned relative to a transport vehicle, an instantaneous effective height of the work machine, for example, relative to the ground surface, is determined. The instantaneous effective height can be based, for example, on the position of a work tool assembly, which is determined based on the recorded relative positions of the various components. An intervention state for the transport phase can be determined, at least partially, based on the effective height of the work machine, for example, by comparing it with a threshold value that may correspond to a possible minimum effective height for this type of machine.Output signals can be automatically generated to perform a predefined intervention in a current transport plan that corresponds to the specific intervention state.

A method for forming a semiconductor structure comprises the steps that a substrate is provided, and the substrate comprises a first region and a second region adjacent to the first region; forming a first dielectric layer at the top of the substrate in the second region, wherein an etching selection ratio exists between the first dielectric layer and the substrate; after the first dielectric layer is formed, forming a first channel layer at the top of the substrate in the first region; the first dielectric layer is removed, and a groove defined by the side wall of the first channel layer and the top surface of the substrate is formed; and forming a second channel layer in the groove. In the process of forming the first channel layer, the flatness of the bottom surface of the groove is relatively high, the flatness of the bottom surface of the second channel layer is also relatively high in the subsequent process of forming the second channel layer, and correspondingly, the effective height of the fin part is consistent with the thickness of the second channel layer in the subsequent process of patterning the second channel layer to form the fin part. Therefore, the effective height of the fin part is conveniently controlled, and the performance of the semiconductor structure is further improved.

The invention discloses a machining method and device for a bent edge of a back plate and a computer readable storage medium. The side edge of the back plate is provided with the bent edge, and the outer end of the bent edge is a dead edge; the machining method comprises the steps that S1, a first section of the side edge of the back plate is bent through first bending equipment, and a first bent part with a first bent angle is formed; s2, the second section of the side edge is bent through second bending equipment, and a second bent part with a second bent angle is formed; and S3, leveling treatment is conducted on the first bent part based on the second bent part through leveling equipment, so that the first bent part is tightly attached to the second bent part to form a dead edge. The effective height of the bending male die can be increased, the anti-cracking capacity of the die is enhanced, the shutdown maintenance frequency is reduced, and the reject ratio of products is reduced.

The utility model relates to the technical field of communication transmission devices of the Internet of Things, and discloses a CAT1 antenna for communication transmission of the Internet of Things, which comprises an antenna assembly and an intelligent mainboard, the intelligent mainboard is provided with an RF end, and the antenna assembly comprises a metal spiral spring, a straight section steel wire part, a copper foil microstrip line and an FR substrate. The straight section steel wire part is fixed at the bottom end of the metal spiral spring, the copper foil microstrip line is arranged on the FR substrate, the top side of the FR substrate is provided with an inclined plane, the tops of the FR substrate and the copper foil microstrip line extend to the inner side of the spring, the upper end of the copper foil microstrip line is provided with a first welding part, and the upper end of the first welding part is provided with a second welding part. According to the utility model, the utilization rate of the height space can be obviously improved, so that the problem that the effective height of the built-in antenna is limited by the compression of the internal height space of a product is solved, and the requirement of keeping stable radiation signals in various communication environments can be better met.

The invention provides a mask device and a preparation process thereof, and relates to the technical field of semiconductors. The mask device comprises a substrate, an optical medium layer, a bonding layer and a Cr film layer which are sequentially stacked from bottom to top, the Cr film layer comprises a grating area and a blocking area, the thickness of the grating area is smaller than that of the blocking area, and a grating structure is formed in the grating area; the substrate is provided with a light passing opening for downward light transmission of the grating structure. According to the mask device, the Cr film layer is adopted as the grating layer, and the thickness of the blocking region in the Cr film layer is set to be greater than that of the grating region, so that the effective height of the grating structure formed in the grating region is ensured, X-rays have a better interference effect through the grating structure, and a target exposure pattern is formed; according to the mask device, reflection and absorption of the blocking area to the X-rays are effectively improved, so that the influence of scattered light formed by the X-rays penetrating through the blocking area on the exposure pattern is reduced, effective interference when the X-rays pass through the mask device is correspondingly ensured, and the high-precision exposure pattern is obtained.

The present application relates to an intelligent scheduling method and system based on a rule base. The method includes: measuring the reference signal receiving power value of the drone and outputting a signal attenuation spectrum; obtaining the signal attenuation value based on the signal attenuation spectrum and inverting the effective width and effective height of the segment based on the signal attenuation value, and calculating the effective space of the segment based on the segment length, effective width and effective length; adopting the corresponding minimum safety distance based on a preset scenario library; and dynamically adjusting the drone queue based on the minimum safety distance. This method outputs an attenuated signal spectrum through the reference signal receiving power value of the drone, obtains the signal attenuation value based on the attenuated signal spectrum, inverts the effective width and effective height of the segment through the signal attenuation value and calculates the effective space of the segment, and selects the corresponding minimum safety distance based on the scenario of the segment, thereby improving capacity utilization efficiency.

The application discloses an absolute gravimeter and a measuring method capable of measuring absolute gravity or gravity vertical gradient. The absolute gravimeter comprises a vacuum falling body system, an upper support adjusting system, a laser interference system, a vibration isolation system and a lower support adjusting system. The vacuum falling body system and the vibration isolation system are designed as cavities with interchangeability of the same connection interface, so that the positions of the two systems in the instrument erection process of different measurement modes are interchanged. The falling body prism in the vacuum falling body system and the reference prism in the vibration isolation system are both designed as a combination of bidirectional pyramidal prisms. In a high position measurement mode, the vacuum falling body system is above and the vibration isolation system is below, and the absolute gravity value at the high position is measured; in a low position measurement mode, the vibration isolation system is above and the vacuum falling body system is below, and the absolute gravity value at the low position is measured. The absolute gravity values at the high position and the low position are obtained through the two measurement modes respectively, and the effective height corresponding to the falling body is recorded, so that the measurement of the gravity vertical gradient is realized.

The application provides a multi-mode railway wireless signal coverage simulation calculation acceleration method and system, relates to the field of railway wireless communication technology, and comprises the following steps: acquiring simulation basic data including terrain, position and device parameters; secondly, calculating the distance between a mobile station and a base station and the effective height of an antenna; then, quickly obtaining a signal propagation loss value by inquiring a preset propagation loss value table; then, dynamically determining a sector simulation calculation region according to a preset minimum receiving level threshold value and the loss value; finally, only executing coverage simulation calculation in the sector region to generate an accelerated wireless signal coverage simulation result. The application replaces complex real-time calculation by table lookup and combines dynamic region control, thereby significantly reducing redundant calculation, greatly improving simulation efficiency while ensuring accuracy.