40 results about "Space activity" patented technology

The invention discloses a method for determining regional ionospheric layer delay. The method includes: collecting data; firstly establishing a regional ionospheric second-order term model according to the collected regional ionospheric VTEC (vertical total electron content) data; establishing a VTEC second-order term model and a fusion model of a neural network; adopting the fusion model to calculate VTEC values of puncture points of other positions in this area. By the method, computed results of the regional ionospheric layer delay are high in precision, and CORS (continuous operational reference system) measured results are wide in application range. A large number of engineering example application result analysis shows that precision of the computed results by the method is improved by 40% as compared to that by the VTEC second-order term model. Ionospheric layer space activity rules are high in fitting degree and high in timeliness, and convenience in use is brought. The ionospheric layer space activity rules can be obtained through analyzing according to fitting results of the neutral network, the ionospheric layer delay in any point in the area can be rapidly corrected, transmission precision and stability of radio waves can be improved, and technical support for better service for CORS can be provided.

The invention discloses a space-activity-track generating method and device. The space-activity-track generating method includes the steps that it is determined that a local machine is in the off-line state in which geographical location information can not be obtained; movement sensing data which is generated by an aspect sensor and used for representing spatial position variation of the local machine is obtained; according to the movement sensing data of one or more aspect sensors, one or more primary tracks are generated; after the local machine is recovered to be in the outer net accessing state, the multiple primary tracks are uploaded to a cloud-terminal server so that the multiple primary tracks can be fitted to spatial movement tracks when the local machine is in the off-line state. In addition, the invention further provides an intelligent device for carrying out the generating method. According to the method, the intelligent device is in the off-line state, the spatial movement tracks are generated according to the movement sensing data of the self-assembled aspect sensor of the intelligent device, the tracks generated with the method are accurate, reliable and suitable for various environments.

The invention refers to a kind of oven door open-close device of the upper grille part and roaster part of the coal gas microwave oven. The oven door open-close device includes oven door side guide rail set on the inner surface of the oven door, main body side guide rail set in the front of the main body, oven door side roller fixed rotatablely on the oven port side guide rail, and main body side roller fixed rotatablely on the main body side guide rail. It makes the oven door slide to the side direction of the main body to realize open and close. So the user can open or close the oven door on its side face. This can prevent the high temperature hot wind from blowing directly to the user, and the scald accident will never occur. So it improves the safety, space activity, and the using expedience of the coal gas microwave oven.

The invention belongs to the technical field of space physics, and relates to a deep space measurement and control signal error correcting method. The method includes the steps that tropospheric correction capital delta rho is corrected, ionospheric correction lower-case delta rho is corrected, plasma correction delta s is corrected, and finally the three types of correction are added to obtain deep space measurement and control signal error correction rho c, wherein rho c meets the equation that rho c = capital delta rho + lower-case delta rho + delta s. In the correcting process of the three types of correction, a regression method is used for building a correction correcting equation, various existing correcting models are used comprehensively, historical data can be systematically used for correcting deep space measurement and control signal error correction, and therefore the purposes of improving the deep space measurement and control signal error correcting accuracy and increasing the deep space measurement and control signal error correcting efficiency are achieved. The deep space measurement and control signal error correcting method provides technical support for deep space exploration projects of China, and has significant application value in major space activities such as Mars exploration.

The invention discloses an information processing method and a server, wherein the method comprises the following steps that: the user time and space activity information of each user in a group is obtained according to UGCs (Users Generate Contents); first information is determined according to the user time and space activity information, and a first screening parameter is determined according to the first information; the first information is used for representing the user change in the space dimension; second information is determined according to the user time and space activity information, and a second screening parameter is determined according to the second information; the second information is used for representing the user change in the time dimension; and the first screening parameter and / or the second screening parameter are / is selected from a screening parameter set according to preset strategies, and a target user best matched with a first user is screened from a candidate user group corresponding to the first user in the group according to the first screening parameter and / or the second screening parameter.

The invention discloses an ionospheric tomography technology based on multi-scale subdivision and an ionospheric delay correction method. The three-dimensional space of the regional ionosphere is subdivided according to different "pixel" scales, thereby obtaining multiple different The single-scale ionospheric tomography model, the unknown variables of these models are uniformly solved, and according to different weight factors, finally weighted to obtain the solution of the multi-scale tomography model, the ionospheric electron density distribution in the region is reconstructed, and the regional ionospheric electron density distribution is obtained. Ionospheric delay. The ionospheric space activity law reconstructed by the invention has a high degree of fitting, strong timeliness, and is convenient to use; the regional ionospheric delay amount calculation result obtained according to the invention has high accuracy, which expands the application range of CORS measurement results. After analyzing the application results of a large number of engineering examples, the ionospheric electron density distribution reconstructed by the invention is smoother and more reasonable than the traditional single-scale ionospheric tomography model, and the accuracy of ionospheric delay correction is increased by 30% on average.

The invention belongs to the technical field of space physics, and relates to a deep space measurement and control signal error correcting method. The method includes the steps that tropospheric correction capital delta rho is corrected, ionospheric correction lower-case delta rho is corrected, plasma correction delta s is corrected, and finally the three types of correction are added to obtain deep space measurement and control signal error correction rho c, wherein rho c meets the equation that rho c = capital delta rho + lower-case delta rho + delta s. In the correcting process of the three types of correction, a regression method is used for building a correction correcting equation, various existing correcting models are used comprehensively, historical data can be systematically used for correcting deep space measurement and control signal error correction, and therefore the purposes of improving the deep space measurement and control signal error correcting accuracy and increasing the deep space measurement and control signal error correcting efficiency are achieved. The deep space measurement and control signal error correcting method provides technical support for deep space exploration projects of China, and has significant application value in major space activities such as Mars exploration.

The invention discloses an evaluation method for space activity concentration of an airborne radioactive substance source of a nuclear power plant. The evaluation method comprises the following steps: aiming at each decay chain of radionuclides, generating decay-migration grids and storing derived decay-migration chains; aiming at each space and each radionuclide in the decay-migration grids, obtaining path numbers from the decay-migration at a starting point to each space-radionuclide grid point and path numbers from the decay-migration of each space-radionuclide grid point to an ending point; aiming at each decay-migration chain, obtaining the activity concentrations of relevant radionuclides in each space according to the corresponding decay constant and removal ratio; accumulating the activity concentrations of the relevant radionuclides of all decay-migration chains in all spaces and comparing the accumulated value with a preset space activity concentration threshold of the relevant radionuclides. According to the technical scheme, accurate evaluation of the airborne radioactive substance source is realized by using a linear subchain technology.

The invention discloses a method for space-time linkage mechanism evaluation of real space activity and network space behaviors. The number of mobile phone users in an activity area during the activity period is calculated by utilizing mobile phone space-time track data; a real space activity radiometric force model is constructed by utilizing the mobile phone space-time track data and through identifying 'home' positions of the mobile phone users; according to social contact media data increase rules, an activity radiometric force model of network space is constructed by utilizing a logistic model; a comprehensive space-time radiometric force model of real space and the network space is constructed, to serve as a space-time linkage strength calculation basis; and space-time linkage strength between the real space and the network space is calculated by comparing space-time radiometric force and propagation velocity of activity in the real space, the network space and the real space - network space. According to the method, space-time linkage analysis between the real space activity and the network space behaviors in the message propagation process is added, and the whole process of propagation affecting by the activity can be presented more really.

A comprehensive evaluation method for shafting faults of space moving parts, which comprehensively evaluates the state of the shafting of space moving parts by using three methods of current, friction torque, and micro-vibration, and realizes shafting fault location without dismantling the shafting. In particular, through the analysis of the fault characteristic frequency of the bearing parts and the shafting natural frequency shift, the cause of the spectrum change can be grasped, so as to realize the diagnosis and location of the shafting fault of the space moving parts. On the one hand, the faulty shafting can be identified in time, and effective remedial measures can be taken to avoid unnecessary scrapping of the shafting. On the other hand, the fault can be accurately located, and more scientific, accurate and effective improvement measures can be provided to improve the reliability of the shafting.