30results about How to "Improve the quality of observation" patented technology

The invention relates to the technical field of robots and discloses a robot head rotating device comprising a device body. A bearing seat is fixedly connected to the inner wall of the bottom of the device body, and the inner surface of the top of the bearing seat is fixedly connected with a connecting column; the outer surface of the connecting column is fixedly connected with a driven rotating disc; and a driving motor is fixedly connected to the inner wall of the right side of the device body. According to the robot head rotating device, by arranging the driven rotating disc, the driving motor, a rotating shaft and a conical gear, the effect of enabling the head of a robot to rotate is achieved; by arranging an electricity hydraulic pusher, an adjusting pushing rod and a ball, the effect of adjusting the vertical observation angle of the robot is achieved, accordingly, the observation angle of the robot is more comprehensive, the daily work of the robot is greatly facilitated, and the application range of the robot is wider; and observation is convenient, and thus the effect that the working efficiency and working quality of the robot are convenient to promote is achieved.

The invention discloses a slit flow stability control device, which is characterized in that: the slit flow stability control device is arranged between a lens system and a base, and a diversion trench array is arranged below a liquid injection cavity and two ends and the outside of a recovery cavity are provided with internal recovery damping row holes and external recovery damping raw holes, so that the stable and reliable liquid continuous updating state in an observation area is maintained. A liquid input into the liquid injection cavity forms jet flow uniformly pointing to the recover cavity and flows uniformly and stably under the guidance of the diversion trench array. Under the working condition that the base moves, the internal recovery damping row holes have an effect of assisting in recovery, and the external recovery row holes absorb possibly leaked liquid drops in real time, so that a multi-layer liquid recovery barrier is formed. In addition, a seal is not required at the periphery of a flow field of the device, a system is simplified, the impact of extra energy on the boundary of the flow field is avoided, and the system has high stability and reliability.

The invention discloses an earth electric field sensor system and an electrode embedding method thereof. The weak information is lost in the long-distance transmission of the existing earth electric field signals. The common electrode and the north-south azimuth electrode are connected with a pre-stage passive band-pass filter of a pre-stage signal conditioning circuit, and simultaneously connected with a pre-stage passive band-pass filter of another pre-stage signal conditioning circuit with the east-west azimuth electrode; after an earth electric field signal is transmitted to the pre-stagesignal conditioning circuit, the earth electric field signal is sequentially subjected to the filtering of the pre-stage passive band-pass filter, the amplification of a pre-stage mixed instrument amplifier, the filtering of a pre-stage active band-pass filter and the signal conditioning of a pre-stage single-ended slip differential circuit in the pre-stage signal conditioning circuit, and the differential signal is output to a corresponding post-stage signal conditioning circuit for further signal conditioning. According to the earth electric field sensor system and the electrode embedding method thereof, the front-stage circuit adopts the mixed instrument amplifier and has the advantages of high input impedance, low noise and low offset; the electrode embedding method ensures that the electrode can be in good contact with the soil medium and enhances the long-term stability of the electrode working.

The invention relates to a method for determining at least one state of a plurality of spatially combined battery cells connected to each other by circuitry, wherein the state is determined by observing battery cells by means of at least one observer structure (20), and wherein a subset (nx) of a collectivity of battery cells (ntot) is observed and the state derived from the observation is determined for more battery cells (10) than for the observed battery cells (10). The invention further relates to a computer program, by means of which the method according to the invention can be carried out, and to a battery comprising a battery management system, which is designed such that the method according to the invention can be carried out thereby. The invention also relates to a motor vehicle comprising a battery according to the invention.

The coronagraph external shelter position measurement system and the external shelter position measurement method, by configuring the laser feedback interference system, adjust the reference light and the measurement light so that they are respectively incident on the support rod and the disk surface of the external shelter, and are directly reflected by its matte black surface Then return to the original path to form laser feedback for measurement. According to the measured length changes of the measurement reference light path and the measurement light path, combined with the structure and parameters of the two light paths, the displacement and angle change of the outer shelter of the coronagraph can be calculated. With the aid of the device and method, the outer shelter can be adjusted to an ideal central position, and the influence of the position change of the outer shelter on the stray light of the coronagraph can be studied when the ambient temperature or the vibration test condition changes. Through the measurement of the position of the external bunker and the quantitative analysis of the introduced stray light, the design of the coronagraph can be further improved and the overall level of stray light can be reduced.

The invention discloses a gap flowing status maintaining device which is of a device arranged between a lens group and a substrate, an observation cavity is arranged at the center of the gap flowing status maintaining device, the gap flowing status maintaining device is outward provided with an injection and recovery discharge hole array, an injection cavity, a recovery cavity, an injection end absorbing liquid discharge hole and a recovery end supplementary liquid discharge hole in sequence. Through a liquid delivery scheme combining a liquid supply cavity and non-even discharge holes, a large-range unidirectional strong liquid flow is formed in the observation area, thereby effectively stopping the polluted liquid from entering the observation area. In addition, the polluted liquid moving along with the substrate is directly absorbed at the periphery of the observation area through arranging a liquid absorption and supplementary channel, thereby further ensuring the uniformity and stability of the liquid in the observation area and eliminating the secondary pollution of an objective lens, being capable of realizing long-term and continuous reliable observation, and especially being applicable to a microscope observation system needing the high-speed movement of the substrate.

The invention discloses a selection method of observer nodes in a wireless sensor network. The selection method comprises the following steps: cluster-head nodes start selection negotiation of the observer nodes; cluster member nodes predict observation quality increment after participating in observation; the cluster member nodes judge whether the observation quality increment is more than zero after participating in observation, if no, the cluster member nodes are in an idle state; if yes, the cluster member nodes calculate cost values of participating in observation, and send the cost values to the cluster-head nodes; the cluster-head nodes add a node which has the minimum observation cost value and selected from the cost values received from the cluster member nodes to an observer node set; the cluster-head checks whether the existing observer node set meets the observation quality requirements, if yes, the cluster-head completes the selection negotiation process of the observer nodes in a cluster; if no, the cluster-head returns to start the next selection. The selection method of observer nodes in a wireless sensor network can reduce energy consumption of the network on the premise of meeting the data quality requirements of users.

The invention relates to a method for controlling the measurement rate of a residual block set guided by a cross subset, comprising the following steps: dividing a target image into several blocks, classifying all the blocks, and classifying each block into a cross subset or a cross subset through the block set division. Residual block set; use the initial measurement rate to observe the intersection subset block by block in sequence, and count the observation value vector; set various optimized measurement rates for the remaining block set according to the statistics of the observation value vector in the cross subset, and use the optimal measurement Observation of the remaining block set block by block with high efficiency, and record the observation value; the observation value of each block is predicted in multiple directions block by block according to the spiral order, and the quantization and entropy coding of the residual are performed. The invention improves the overall quality of image observation while maintaining the average measurement rate.

The invention provides a transmission electron microscope sample junction staining method, which comprises the following steps: a chip sample is processed until a contact hole is exposed; a first chemical reagent is used to remove a filler in the contact hole; a second chemical reagent is used to remove doped silicon in a junction below the contact hole; a filling protection layer is deposited on a sample preparation area; and an ion beam is utilized to cut two opposite lateral faces of a transmission electron microscope sample to form transmission electron microscope sample slices, wherein the ion beam doesn't directly cut Si in the sample preparation area but laterally maintains a predetermined thickness of SiO2 from the sample preparation area in allusion to each face.