45results about How to "The assessment result is accurate" patented technology

The invention discloses a lake water quality evaluation prediction system and method based on a factor weighting model. The method comprises the following steps: through different lake area pollution thermal graph color conditions, knowing each lake pollution contrast; through obtaining lake basin weather indexes, feeding time vector weather temperature information and each weather index to a user; displaying an accomplishment of an improved factor weighting model; and through combination with a correlation analysis algorithm, emitting an alarm to the user for each current standard-exceeding water quality index and prediction standard-exceeding indexes. According to the invention, the factor weighting evaluation model capable of more accurately evaluating water quality is established. Through numerous data tests of the model, it is proved that the algorithm operation efficiency and the water quality evaluation accuracy are greatly improved. A factor weight based evaluation model is established, a future lake water quality and environment development trend is reasonably predicted and analyzed, most visual water quality change and lake area differences can be given to the user, and water supply environment management advice is provided for sustainable development of a nine-like basin.

The invention discloses a system and a method for assessing contribution electric quantity of primary frequency modulation of a hydroelectric generating set. The method comprises the following steps of utilizing a simulation model of the hydroelectric generating set to obtain theoretical active power; then, enabling a theoretical action integral electric quantity calculation module to obtain the theoretical action integral electric quantity of the primary frequency modulation of the hydroelectric generating set according to the theoretical active power, the time corresponding to the theoretical active power, and the theoretical action integral electric quantity relation, and obtain the actual action integral electric quantity of the primary frequency modulation of the hydroelectric generating set according to the actual power of the hydroelectric generating set, and the time corresponding to the actual power; enabling an assessing module to calculate the ratio of actual action integral electric quantity and theoretical action integral electric quantity, and judging whether the ratio is greater than the threshold value or not, wherein when the ratio is greater than the threshold value, the primary frequency modulation of the hydroelectric generating set passes through assessing; when the ratio is not greater than the threshold value, the primary frequency modulation does not pass through assessing. The system has the advantages that the theoretical action integral electric quantity obtained by the type is more approximate to the actual action integral electric quantity, and the electric quantity is more accurate; the assessing result is more accurate, and the false rate is low.

The invention belongs to the technical field of civil engineering, and discloses an evaluation and detection system for the apparent defects of a civil engineering structure. The system comprises an image acquisition module, a pressure detection module, a central processing module, a drone module, an image processing module, a defect evaluation module, a life prediction module and a display module. The image acquisition module and the drone module can collect image data of each corner of the engineering structure through a drone in order to obtain complete image data, so an evaluation result is accurate; the life prediction module can judge the possible control section of the structure, calculate the stiffness attenuation coefficient under the influences of load, shrinkage and creep and predict the remaining service life of the structure after the structure is loaded according to numerical analysis or mechanics knowledge; the remaining life prediction result is continuously updated bycombining actual measurement information; and the life of the structure can be accurately predicted.

The invention belongs to the technical field of agro-ecological assessment, and discloses a method for health analysis of alpine meadow grassland ecosystem, and a computer. The method comprises steps:establishing a judgment matrix for the mutual relation of the elements located at the network layer, and obtaining the limit super matrix and the weights of each bottom index by using the analysis method of the network structure. By comparing with the existing method, the data obtained by the invention is more comprehensive and reasonable, and therefore, the health status of the grassland can beaccurately judged. The invention is convenient and practical for technicians and farmers and herdsmen, can effectively guide grass-roots technicians and farmers and herdsmen to carry out reasonable utilization and scientific management of the grassland, maintain the health status of the grassland ecosystem, and lay a foundation for the sustainable development of the grassland animal husbandry andthe sustainable exertion of the grassland ecological function.

The invention belongs to the technical field of laser control, and discloses an efficient laser control system and method. The efficient laser control method comprises the steps that control management is performed on a power supply through a power supply control module; laser control parameters are configured through a parameter configuration module; a main control module dispatches a light source module to generate a laser pulse beam; the laser pulse energy of each laser pulse in the laser pulse beam is measured by adopting a laser energy monitor through an energy measurement module; the filtering of a single laser superimposed pulse signal is detected through a filtering detection module; and an interaction operation is performed by adopting a touch screen through an interaction module.The efficient laser control method can enable a power regulating circuit to output driving current capable of stably driving a semiconductor laser through the power supply control module, thereby realizing accurate control for the driving current. The filtering detection method for the single laser superimposed pulse signal has high interference resistance, accuracy and stability.

The invention discloses a patient rehabilitation rating scale generation method, which comprises the following steps of creating patient file information or opening the created patient file information, selecting rating items, calling test questions in a database, and generating test rating paper; after the test is completed, calculating rating results, entering and submitting the rating conclusion, and transmitting the rating conclusion to the database to be stored; calling a historical rating record of a patient, and respectively generating a curve graph of the rating record and a curve graph of the historical rating record in the same coordinate axis. The invention also discloses a patient diagnosis and rehabilitation rating scale generation system.

The invention discloses a device and method for conducting vibration monitoring and fault early warning on a centrifugal pump. The vibration condition of the centrifugal pump is collected through a piezoelectric type vibration acceleration sensor and input into a host computer through a multichannel data acquisition card, so that centrifugal pump vibration signals are formed. The method for conducting vibration monitoring and fault early warning through the device includes the steps of simulating centrifugal pump faults, and collecting fault signals; conducting noise elimination processing onthe fault signals; conducting feature extraction on the noise elimination signals; establishing a centrifugal pump fault feature vector; operating a centrifugal pump set, and also conducting noise elimination processing and feature extraction on the signals collected by the vibration sensor, so that a comparison feature vector is obtained; and comparing the comparison feature vector with a simulation feature vector, so that whether faults exist in a corresponding measure point of the centrifugal pump or not is known. The device and the method have the beneficial effects of being low in cost, easy to implement and great in universality. Early warning results are concise and clear, and fault early warning accuracy and efficiency of the centrifugal pump are improved.

The invention puts forward a hospital nursing quality assessment management system and method. The system comprises a uniform user platform, a nursing quality assessment platform and a data center analysis platform, wherein the uniform user platform, the nursing quality assessment platform and the data center analysis platform are successively connected through an intranet special line. The system has the advantages that the system is established on the uniform user platform of the hospital and can be fused with other nursing systems to realize data sharing. By use of the system, head nurses can get rid of complex manual processing ways, and finish each piece of assessment work in the system; mobile equipment is adopted and is combined with patient feedback opinions to carry out multiaspect real-time assessment, a nursing department can finish assessment in the system, the grading accounting of each endemic area is automatically finished, a final analysis statement is combined to form a cyclic operation system of a nursing quality improvement measure, and nursing quality can be continuously improved.

The invention belongs to the technical field of crane monitoring, and discloses a monitoring system for a garbage grab bridge crane. The monitoring system for the garbage grab bridge crane comprises an information detection module, an information processing module, a remote transmission module, a remote monitoring center, a video monitoring module, a control output module, an information storage module, an information display module, an information export module, a fault monitoring module and a self-inspection stop module. According to the monitoring system for the garbage grab bridge crane, through the fault monitoring module and the self-inspection stop module, self-detection can be achieved, and the fault can be diagnosed; and meanwhile, through the fault monitoring module, the damage fault of a transmission chain of the crane can be monitored, the problem that safety monitoring and protection schemes are not perfect enough in the prior art is solved, and safety accidents and lossesof the crane are reduced.

The invention provides a method and a system for assessing the business knowledge of hydrological employees. The method includes the following steps: on an examination paper management page, acquiring an examination paper selection instruction in an examination paper category list; randomly generating an examination paper from a knowledge base according to the examination paper selection instruction and preset rules to get a random examination paper, and displaying the random examination paper on an examination interface, wherein the knowledge base includes knowledge bases for a plurality of professional fields, and the random examination paper includes various question types; and getting the answers of examinees to the questions on the random examination paper within a predetermined period of time according to the random examination paper, automatically generating scores, and displaying the answers and the scores on the examination interface, thus completing evaluation. According to the method for assessing the business knowledge of hydrological employees, questions are set intelligently and randomly according to preset rules, and online automatic assessment is carried out, which not only saves labor cost, but also improves the fairness of assessment.

The invention belongs to the dangerous material mechanical environment test safety protection technical field, and concretely relates to a propellant container mechanical environment test safety protection method. The method comprises test risk analysis, test safety protective measures and safe operation requirements in a test process, and performs protective work on the aspects of active protection (explosion protection) and passive protection (explosion resistance). Active protection is mainly reflected in electrostatic protection, fire protection, lightning protection and operating personnel work standard enhancement; passive protection is mainly reflected in test site infrastructures, remote control, station site selection control and test flow arrangement. The method is suitable for a propellant container mechanical environment test employing a real propellant, and can obtain more accurate examination results, directly perform test run performance examination after the mechanical environment test, and solve the safety risks of container leakage and fracture under the recombination action of dynamic stress and internal pressure in the mechanical environment test.

The invention relates to the technical field of grain size detection, in particular to a method for displaying the high-strength steel grain size. The method comprises the following steps of 1, assembling a stress guiding device, wherein a sample is machined into a beam of the corresponding specification, and then, the beam is assembled into the needed stress guiding device; 2, performing standingof a hydrogen inflation solution, wherein the assembled stress guiding device is placed into the hydrogen inflation solution for electrochemical hydrogen inflation, and standing is performed for 5 min-4 h; 3, measuring the grain size and evaluating the grain size level, wherein after the sample is broken, the sample is placed under a scanning electron microscope for magnifying and observing, thegrain size is measured, and the grain size level is evaluated. After the method is adopted, in the display process, a corrodent does not need to be found for grain boundary corrosion, in the grain boundary showing process, the grain size in steel cannot change, and the evaluating result is more accurate. Grain boundary corrosion is not involved, no grain size change is caused in the experiment process, and the high-strength steel grain size can be well evaluated.

According to a device and method for evaluating the driving road condition, an accelerator controller is adopted to control the accelerator opening degree, and a vibration sensor is used for collecting vehicle vibration signals; under a certain accelerator opening degree, vehicle vibration signals of different road sections belonging to a certain grade of road conditions are collected, a vibrationsignal characteristic value of each road section is extracted based on the collected vehicle vibration signals, the vibration signals of multiple road sections are collected and summarized, and a vibration signal characteristic value set of the corresponding grade of road conditions is formed; and finally, the current driving road condition level of the vehicle is judged according to the set to which the current vehicle vibration signal characteristic value belongs. The method can better adapt to unfamiliar road sections, so that the vehicle has better environmental adaptability, the vibration signals in the vehicle are taken as direct data, the influence of the shock absorption performance of the vehicle and the vehicle body structure on the current driving road condition grade evaluation is eliminated, the method has wider adaptability, and the evaluation result is more accurate and unified.

The invention relates to a quantum key security evaluation method, a quantum key security evaluation device and a medium. The quantum key security evaluation method comprises the following steps: acquiring an optical pulse signal sequence of quantum key security to be determined, wherein the optical pulse signal sequence comprises a quantum key sent by a sender to a receiver; and in response to determining that the optical pulse signal sequence is a non-independent pulse sequence and the optical pulse signal sequence has a post-pulse effect, determining the security of the quantum key included in the optical pulse signal sequence based on detecting a first detection rate of the optical pulse signal sequence. Through the quantum key security evaluation method provided by the invention, the security of the quantum key sent by the sender to the receiver can be determined according to the influence of the post-pulse effect and based on the detected first detection rate of the optical pulse signal sequence in the process of sending the optical pulse signal sequence. Therefore, the accuracy of detecting the security of the quantum key is improved, and the obtained evaluation result is more accurate.