189results about How to "Rich detection methods" patented technology

The invention discloses a botnet detection method based on DNS (Domain Name System) flow characteristics. The method of the invention comprises a Domain-Flux botnet detection method based on DNS flow characteristics. The method comprises steps: legal main domain names and illegal main domain names are combined to form a target set; a domain name whose length is larger than 6 is extracted and processed as a research target; the domain name entropy, word formation characteristics, phonetic characteristics and grouped characteristics are calculated respectively; and the above is put in a random forest classifier to obtain a training model. A Fast-Flux botnet detection method based on the Domain-Flux botnet detection method comprises steps: the original data of a DNS server are processed; the training model obtained before is used for evaluating a to-be-processed domain name, and a score for a DGA condition is acquired; a white list, a black list and a grey list are used for scoring the domain name and an IP; time characteristics of the IP address are calculated; the stability of the IP address is calculated; and the above is put in the random forest classifier to obtain a training model SFF. The experiment accuracy is high.

The invention provides a machine vision method for identifying the dial plate information of a multi-pointer instrument. The machine vision method mainly comprises the following steps of: acquiring an image containing information of the multi-pointer instrument, preprocessing the acquired image, positioning and marking a dial plate of the multi-pointer instrument in the image, segmenting the dialplate of the instrument in the image of the dial plate of the multi-pointer instrument, carrying out mathematical morphological filtering, extracting pointer characteristics in the dial plate by means of a human-eye-vision based jumping searching pointer and a human-eye-vision staring characteristic, calculating readings of the pointers of the instrument and the like. The machine vision method provided by the invention can be used for automatically carrying out vision identification on the information of the dial plate of the multi-pointer instrument in one image, and has the advantages of high degree of automation, accuracy in measurement, high efficiency and the like; and compared with the detection method in which one image and one instrument are provided in single-pointer instrument detection at present, the invention improves the utilization rate of the pointer instrument detection equipment and reduces the instrument detection cost.

The invention relates to a coach self-adaptive cruise control system and a control method thereof. The coach self-adaptive cruise control system comprises a central decision control module. The central decision control module is connected with a front-vehicle detecting module and a vehicle detecting module in a sampling manner and connected with an engine control module, a retarder control module and an ABS (antilock braking system) control module in a control manner. The coach self-adaptive cruise control system had the advantages that multiple front-vehicle state detecting methods and vehicle state detecting methods are used, the detecting methods are comprehensive, and front-vehicle speed, relative vehicle distance, relative speed, transverse distance, vehicle driving conditions and driver's operation information can be detected effectively and transmitted to the central decision control module; braking manners are diversified, engine output power adjusting, engine exhaust braking, retarder first-gear braking and retarder second-gear braking are started stage by stage under different states until ABS braking, and the braking process is stable and comfortable.

The invention relates to an intelligent patrol inspection robot and a patrol inspection method for an overhead transmission line. The intelligent patrol inspection robot of the invention has the following abnormal conditions: measuring the distance between a conductor and a peripheral tree, identifying the conductor broken strand, lightning strike point, self-explosion of an insulator, inclinationof a pole and tower, bird's nest and the like by means of images; The fault point can be located by GPS, and the distance can be located by the roller with high precision. Robot autonomous data processing and background auxiliary processing, human-machine interaction with the ground patrol personnel and intelligent overcoming obstacles in progress and other functions. The robot adopts remote wireless monitoring and control, can climb over obstacles independently and carry various detection equipment to complete the detection work. In power-saving mode, only one walking wheel can be used as adriving wheel to drive the robot to move, thus prolonging the endurance time. The robot of the invention integrates a plurality of technologies, thereby solving the bottleneck that the patrol robot has single function and is difficult to be applied to the actual detection, and deepening the application of the robot technology in the electric power patrol inspection work.

A detection system of high sensitivity DC local discharge on large-capacity high voltage power device is prepared for providing high voltage DC voltage to balance detection impedance circuit by DC high voltage source, picking up local discharge signal of detected sample by balance detection impedance circuit, sending local discharge signal to differential amplification filtering circuit to carry out differential amplification filtering treatment than sending treated signal to data collection and analysis unit for obtaining detection and analysis result of local discharge signal.

The invention discloses an automatic detection and sorting system and method for a solid grain. The system comprises a transmission part, an inclined-plane roll-over part, a signal acquisition and processing part and a grain sorting part, wherein the transmission part is provided with a plurality of transmission channels, the inclined-plane roll-over part is provided with a plurality of conveying channels, the tail ends of the transmission channels of the transmission part are connected with the front ends of the conveying channels of the inclined-plane roll-over part, the tail ends of the conveying channels of the inclined-plane roll-over part are connected with the grain sorting part, and the signal acquisition and processing part is arranged above the conveying channels of the inclined-plane roll-over part. With the system and the method provided by the invention, problems in signal acquisition of the solid grain are overcome, multi-attitude information of the solid grain can be generated through the inclined-plane roll-over part, recognition accuracy can be improved during pattern recognition, and troubles in artificial laying of the solid grain are overcome.

The invention provides a method and device for identifying risk users. By means of the method and device for identifying the risk users, users who spread junk information related to bad behaviors on purpose can be identified, and accordingly harm caused by the bad behaviors can be further reduced. The method includes the steps that all punished users are acquired as junk users; information initiated by each junk user is acquired, all associated users of the junk users are analyzed through the initiated information, and the weight of the associated users in the junk users is calculated, wherein the associated users are users who interact with the information initiated by the junk users; the junk users corresponding to the associated users are analyzed with the associated users as dimensionality, and the associated users are identified as the risk users according to the junk users corresponding to the associated users and the weight of the associated users in the corresponding junk users; the identified risk users are monitored, and operating authorization of the risk users is limited.

The invention discloses a robot-based intelligent road detection method, which comprises the steps of: S1, determining a road detection region; S2, and automatically planning a path according to the road detection region and executing a road detection task by means of an autonomous detection robot, acquiring real-time positioning information of the robot in the process of executing the road detection task, acquiring road surface data by means of a high-precision camera and a round penetrating radar, correlating the acquired road surface data with the positioning information corresponding to the time when the data is acquired, and storing the data and the information. The robot-based intelligent road detection method utilizes the autonomous detection robot to perform path automatic planningand execute the road detection task, utilizes the positioning equipment to acquire the positioning information of the robot in real time and utilize the data acquisition sensor to acquire the road surface data, and associates the acquired road surface data with the corresponding positioning information, thus the effect of completing the road detection task autonomously by means of the robot is realized, the operating efficiency is high, the detection data is complete, the detection data and the position information are precise, and the diseases can be precisely positioned.

The invention relates to a test paper card for detecting porcine transmissible gastroenteritis virus antibody, preparation and detection method thereof, and belongs to the field of immunological detection. The test paper card includes a jammed case and a test strip, and the test strip includes a bottom plate and sequentially lapped and pasted on the Absorbent pad, detection pad, binding pad and sample pad on the base plate; the detection pad is a nitrocellulose membrane with a quality control line C and a detection line T, the quality control line C is coated with goat anti-mouse monoclonal antibody, and the detection line T is Coated with inactivated porcine transmissible gastroenteritis virus; the binding pad is a glass cellulose membrane embedded with time-resolved fluorescent microsphere-labeled anti-E2 protein monoclonal antibody; the sample pad is dried glass after soaking in the sample treatment solution Cellulose film. The test paper card prepared by the invention has better stability and higher sensitivity, and can achieve the purpose of semi-quantitative detection through fluorescence signal analysis.

The invention provides a method for preparing fast detecting test paper of illegal cooling oil. The method includes the following steps of sequentially preparing immune colored latex microspheres, an immune colored latex reaction pad and a nitrocellulose (NC) membrane and assembling a colored latex test strip. By means of the detecting test paper of the illegal cooking oil, detection sensitivity is high, a plurality of indexes can be simultaneously detected, a comprehensive and systematic detection method is provided for detecting the illegal cooking oil, and detection costs are relatively reduced; the quality of the detecting test paper can be guaranteed for two years at normal temperatures, the quality guarantee period is effectively prolonged, and preservation conditions are reduced; non-professional persons can use the detecting test paper to accomplish whole detection, so that the operation is simple, and popularization of the method is facilitated; and the whole detection process can be accomplished in 10 minutes at the soonest, and the detecting test paper is suitable for fast field screening.

The invention discloses a detection method for floor substrate water absorption expansion rate and water absorption height, which comprises the following steps: (1) according to the same order, the same specifications, and the same date, a sheet of floor substrate is extracted, two test pieces of the floor substrate with the 150 mm multiplied by 50 mm are prepared, and then are set aside for 24 hours; (2) the height of the 50mm upward from the bottom of the test piece is lined out with an immersion line; and then the thickness of the three points being marked at the edge of the test piece mark is measured; (3) the test piece is soaked in water for about three hours; the test piece is taken out every half hour; the thickness of the three points at the edge of the test piece and the height of the moisture rising of the edge are measured and recorded; and then the relative expansion rate of the water absorption of the floor thickness is calculated and is compared with the standard value of the invention to determine whether the floor is qualified or not. In the method, the project which measuring the water absorption of the test piece is added, thus further perfecting the detection method. The method changes the original 24 hour soaking of the test piece into the 3 hour soaking, thus shortening the waiting time of detecting and increasing the working efficiency of the test piece detection of the floor substrate.

The invention discloses a quality detection method of a pharmaceutical composition preparation prepared from 30-40 parts by weight of Tibet inula root, 50-70 parts by weight of dry ginger, 80-110 parts by weight of Medicine Terminalia Fruit, 100-140 parts by weight of Rheum officinale, 100-200 parts by weight of Gypsum Rubrum, and 150-210 parts by weight of trona. The method comprises a process for identifying Medicine Terminalia Fruit and dry ginger with thin layer chromatography, and a process for determining effective contents of emodin (C15H10O3) and chrysophanol (C15H10O4) in a medicinalmaterial Rheum officinale by high performance liquid chromatography. The total content of emodin (C15H10O3) and chrysophanol (C15H10O4) of each 1g of the preparation is not less than 0.60mg. The quality detection method of the present invention which has the advantages of simplicity, sensitivity and rapidness can more effectively control the quality of products.

The invention discloses a specific protein rapid analysis instrument, and aims at providing a specific protein rapid analysis instrument which has a small size, is convenient to carry and has multiple detection functions. The specific protein rapid analysis instrument comprises a shell and a detection body device which is arranged inside the shell, wherein the shell comprises a front shell and a rear shell which is matched with the front shell, the detection body device comprises a detection body, a cuvette hole, a light source hole, a monochromatic detection light source, a transmission light-path hole and a transmission light collection plate, the cuvette hole is arranged in the upper surface of the detection body and passes through the front shell, the light source hole is arranged in the rear surface of the detection body and is communicated with the lower part of the cuvette hole, the chromatic detection light source is arranged inside the light source hole, the transmission light-path hole is arranged in the front surface of the detection body and is communicated with the lower part of the cuvette hole, and the transmission light collection plate is arranged on the front end of the transmission light-path hole. The specific protein rapid analysis instrument also comprises a scattered light hole and a scattered light collection plate, wherein the scattered light hole is obliquely arranged in the front surface of the detection body and is communicated with the lower part of the cuvette hole, and the scattered light collection plate is arranged on the front end of the scattered light hole and is obliquely arranged above the transmission light collection plate. The specific protein rapid analysis instrument can be used for rapidly detecting different specific proteins.

The invention relates to a composite nervous action potential tuning curve calibration and detection system. The composite nervous action potential tuning curve calibration and detection system is characterized by comprising a computer, an acoustic card, an acoustic sensor, a preamplifier, an electrode, a high-impedance input level, a bioelectric amplifier and earplugs. An audition testing platform is arranged in the computer and comprises a testing executing system and an acoustic card driving system, wherein the testing executing system comprises a plurality of calibration and detection modules. A system calibration and debugging module is used for calibrating and debugging the acoustic card and sensitivity of the acoustic sensor. An acoustic sensor position calibrating module is used for calibrating a position of the acoustic sensor testing an external auditory canal of an animal. An electrode position calibrating module is used for calibrating whether a recording electrode is disposed to testing round window membranes in the animal ears or not. A composite nervous action potential threshold curve detection module is used for testing stimulus intensity thresholds of composite nervous action potentials. A composite nervous action potential tuning curve detection module is used for detecting composite nervous action potential tuning curves. The composite nervous action potential tuning curve calibration and detection system can be widely applied to auditory detection.

The invention discloses a synchronous computer controller device for overall tension and a construction method. The device comprises a mechanical system, a hydraulic system and a control system, wherein the mechanical system comprises a tensioned space cable structure, a steel tension cable and a tension tool, wherein the steel tension cable is connected with the tensioned space cable structure and the tension tool respectively; the hydraulic system comprises a hydraulic pump station, a hydraulic jack group and various hydraulic valves; the hydraulic jacks are connected with the hydraulic pump station; tensile force is applied to the tension tool; the control system comprises a computer and a main control cabinet; the main control cabinet is connected with a computer, the hydraulic systemand the mechanical system respectively; and the main control cabinet comprises a communication control board, a PLC (Programmable Logic Controller), a phase sequence control relay, various interface boards, a transmission line and a remote monitoring sensor. The device has the advantages of simple manufacturing process, economical efficiency, reasonable manufacturing cost, easiness and convenience for operating, high synchronous control accuracy and the like.

It is a measurement for content of fly ash in the new-mixed concrete and especially relates to the measurement for concrete content. The method in this invention is the following: first to separate through partition method carpolite, sand and mixture of cement and fly ash in the specimen of new-mixed concrete and to weigh them after cooling and drying; then to measure the cement, fly ash density in the material used in the concrete or sand plasm and density of the recycled mucus mixture; then to measure the fly ash content through simple calculation. This invention improves the measurement for the concrete content and can be widely used in the measurement of the solid waste such as fly ash in the new-mixed concrete.

The invention relates to an electric vehicle direct-current interface circuit simulator which comprises a vehicle input socket, a load positive pole binding post, a load negative pole binding post, a control communication bus interface, a vehicle controller interface, a variable resistor, a loop resistor, a plurality of detection units and a plurality of disconnecting switches. Each detection unit comprises a detection switch and standard collection interfaces arranged at the two ends of the detection switch respectively. All the elements are connected based on the detection units and the disconnecting switches. According to the simulator framework based on the detector units, interoperability detection between electric vehicle direct-current charging piles is achieved, detection comprehensiveness is improved, and the electric vehicle accident rate is lowered.

The invention provides a benzimidazole quinoline derivative, a preparation method and application in copper ion detection, and particularly relates to a 2-(4-N,N-bis-substituted styryl)-8-1H-benzimidazole) quinoline derivative. Particularly, 2-aminobenzoic acid is used for preparing 2-methylquinoline-8-carboxylic acid, then the 2-methylquinoline-8-carboxylic acid and o-phenylenediamine are subjected to condensation to obtain 2-methyl-8-(2-benzimidazolyl) quinoline, the 2-methyl-8-(2-benzimidazolyl) quinoline and N,N-bis-substituted benzaldehyde are subjected to condensation to obtain the benzimidazole quinoline derivative. A probe has the good complexation with copper ions, when the copper ions exist, derivation of the solution is observed with naked eyes, and the solution is changed from yellow to purple, absorption at the 418 nm position on an ultraviolet visible absorption spectrum is weakened, and a novel absorption peak appears at the 550 nm and gradually increases when the concentration of the copper ions is increased; the benzimidazole quinoline derivative can be used for real-time and rapid measurement of complex samples and can also be used for semiquantitative detection of micro / trace Cu2+ of environment samples from different sources.

A low-altitude detection floating platform comprises a balloon, synthetic aperture radar, optical equipment, a task cabin system, a power system, a flight control system, a pod system and a tail fin system; the balloon used for providing floating force comprises a main balloon and an auxiliary balloon; the synthetic aperture radar is used for ground detection; the optical equipment is used for ground monitoring; the task cabin system is disposed at the bottom of the balloon and comprises a first mounting platform; the synthetic aperture radar and the optical equipment are mounted on the first mounting platform; the power system provides power for the floating platform; the flight control system is used for flight control; the pod system is disposed at the bottom of the balloon and comprises a second mounting platform; the flight control system and the power system are disposed on the second mounting platform; the tail fin system is used for controlling ascent, descent and turning of the floating platform; the flight control system is connected with the synthetic aperture radar, the optical equipment, the power system and the tail fin system. The low-altitude detection floating platform has the advantages that means of detection are more comprehensive, operating is more comprehensive, using is safer, and detecting positions and paths can be corrected in real time.

The invention relates to a detection method of a pharmaceutical preparation for curing stomach pain caused by qi stagnation. The detection method comprises the following cinene content measuring steps: (1) taking 2.0-3.0g of pharmaceutical preparation to be detected, adding 10-100mL of 30%-100% methanol, weighing, carrying out ultrasonic or heating reflux for 10-60min, cooling, weighing again, supplementing the lost weight by using 30%-100% methanol, shaking uniformly, and filtering, thereby obtaining filtrate which is taken as a sample solution; (2) taking a cinene reference substance, adding methanol to prepare a solution in which every 1mL of methanol contains 0.05-0.15 micro-liter of cinene, wherein the solution is taken as a reference substance solution; (3) implementing chromatographic conditions, wherein C18 is taken as a chromatographic column, a chemically bonded phase is taken as a fixed phase, a mixed solution with the volume ratio of acetonitrile to water being (60-80) to (40-20) is taken as a mobile phase, the time is 20-40min, the column temperature is 10-30 DEG C, the detection wavelength is 210nm, and the flow rate is 0.5-1.5mL / min; and (4) respectively precisely sucking 6-10 micro-liter of sample solution and 6-10 micro-liter of reference substance solution, and measuring by injecting the solutions into high performance liquid chromatograph. The detection method is rapid and comprehensive, is strong in pertinence, is beneficial to effective control on quality of the pharmaceutical preparation and also is beneficial to improving the use safety and stability.

The invention relates to the voltage transformer broken line detection technology field and particularly relates to a PT broken line detection method during slow melting of a generator terminal primary fuse. The method comprises steps that step 1, data acquisition is carried out; step 2, line break determination conditions of a first voltage transformer and a second voltage transformer are determined; step 3, when the generator primary fuse melts slowly, if the first determination condition and the second determination condition of the step 2 are not satisfied, an actual work current of the fuse connected with a generator is measured, the actually-measured current of the fuse is I fuse, a rated current of the fuse is I fuse e, an excitation voltage break variable is set to be deltaUfd, and the third determination condition is determined; and step 4, if one of the first voltage transformer and the second voltage transformer of the generator terminal has a broken line, alarm is carried out, and the progress is over. The method is advantaged in that slow melting of the generator voltage transformer primary fuse and complete line break conditions of primary and secondary voltage loops can be accurately detected, and strong adaptability, wide use scope and high reliability are realized.

The invention provides a method for detecting cerebroprotein hydrolysate tablets. The method comprises the following steps of identifying the micromolecule peptides in the cerebroprotein hydrolysate tablets, determining the content and the like. The total amount of amino acid in the cerebroprotein hydrolysate tablets is determined by performing complete acid hydrolysis on a sample, the content ofthe free amino acid contained in the cerebroprotein hydrolysate tablets is determined, the reasonable quality control index aiming at micromolecule peptides is set, the method for detecting the cerebroprotein hydrolysate tablets is improved, and a complete and accurate quality control method is provided from the cerebroprotein hydrolysate tablets. The content controllability of active ingredientsin a product is guaranteed, and components of a preparation reach the effective dose range, so that the curative effect is guaranteed. The method is suitable for the quality control of industrial production and has great application value.

The invention relates to a detecting method and medium of bacillus coagulans. The medium includes 5.0-10.0 parts by weight of tryptone, 2.0-3.0 parts by weight of yeast extract powder / extract, 1.0-5.0parts by weight of glucose, 1.0-2.0 parts by weight of polysorbate-80, 0.1-0.5 part by weight of L-cysteine, 0.04-0.06 part by weight of bromocresol purple, and 15.0-20.0 parts by weight of agar. Themedium allows colonies to grow well, and is low in cost and simple and convenient to prepare. A counting result is accurate and reliable when the medium is utilized for detection of the bacillus coagulans.

The invention discloses an analysis device for integrated nucleic acid extraction and amplification detection based on a smart phone and a method thereof, which relates to the key technical field of intelligent medical instruments. According to the analysis device, the smart phone is used as a main component, the smart phone is integrated with microfluid driving, temperature control and multicolorfluorescence detection, a portable multifunctional universalization device integrating nucleic acid extraction, amplification and detection is formed, the device is combined with a micro-fluidic chip; on-chip nucleic acid extraction, isothermal amplification qualitative detection and detection of real-time fluorescent quantitative PCR (Quantitative Real-time PCR,qPCR) and multiple fluorescent PCR(Multiplex PCR) are realized, and analysis and detection of pathogen nucleic acid are realized. The analysis method comprises the steps of nucleic acid extraction, system configuration, system loading, temperature setting, image acquisition, image processing and result storage and sharing. The smart phone is used as a main component, the size is small, the cost is low, the functions are complete,the applicability is high, and the detection method is diversified.

The embodiment of the invention relates to the field of Internet application, and discloses a webpage tampering detection method. The method comprises the following steps: performing hash value comparison on a webpage source code and a standard source code corresponding to the webpage source code to obtain a hash value comparison result; if the hash value comparison results are completely the same, the webpage source code is not subjected to webpage tampering; if the hash value comparison results are different, determining that the hash values are different; if yes, webpage tampering occurs tothe webpage source code; and judging webpage tampering types corresponding to the hash values with different comparison results, detecting the webpage source code by adopting a webpage detection method corresponding to the webpage tampering types to obtain a tampering result, and running a pre-constructed webpage tampering alarm optimization program according to the tampering result to perform tampering broadcast. The invention further provides webpage tampering detection electronic equipment, a webpage tampering detection device and a computer readable storage medium. According to the method, the webpage tampering type can be effectively detected, and the problem of webpage tampering misinformation is reduced.

The invention belongs to the field of detection of quality of traditional Chinese preparations, and particularly relates to a method for detecting a pharmaceutical preparation for treating the xiaoke disease. The pharmaceutical preparation comprises the active pharmaceutical ingredients, by weight, 6000-8000 parts of silkworm feces and 100-200 parts of radix glycyrrhizae. According to the method for detecting the pharmaceutical preparation, the pharmaceutical preparation is detected by measuring the content of 1-Deoxynojirimycin through an HPLC method. The method for detecting the pharmaceutical preparation is rapid, comprehensive and highly targeted, the quality of the preparation can be effectively controlled, and use safety and stability of the preparation can be improved.

The invention relates to an immunity test strip based on a fluorescent microsphere for detecting an infectious pleural pneumonia antibody of a goat as well as a preparation and detection method, whichbelong to the detection field of immunity. The test strip comprises a shell and a test strip, wherein the test strip comprises a bottom plate as well as a water absorption pad, a detection pad, a combination pad and a sample pad which are successively lapped and adhered onto the bottom plate; a nitrocellulose membrane is provided with a quality control line C and a detection line T, the quality control line C covers a His tag monoclonal antibody, and the detection line T covers a goat mycoplasma pneumonia recombinant protein; the combination pad is a glass cellulose membrane coating with thegoat mycoplasma pneumonia recombinant protein marked by time resolution fluorescent microspheres; and the sample pad is a dry glass cellulose membrane after being soaked in sample treatment liquid. The test strip prepared by the invention has better stability and higher sensitivity, and can achieve a purpose of rapid semi-quantitative detection by virtue of the fluorescent signal analysis.

The invention belongs to the technical field of rubber products and relates to a polyacrylate rubber spindle lip type sealing ring and a manufacture method thereof. The polyacrylate rubber spindle lip type sealing ring comprises the following components in parts by weight: 100 parts of polyacrylate rubber, 50-60 parts of carbon black, 2-3 parts of an anti-aging agent, 2-2.5 parts of operation auxiliaries, 30-35 parts of an anti-wearing agent, 0.86 part of a vulcanizing agent and 2.2-2.6 parts of an accelerant. According to the polyacrylate rubber spindle lip type sealing ring and the manufacture method thereof provided by the invention, the manufactured ACM glue framework oil seal has heat-resisting, wear-resisting, oil-resisting and low temperature-resisting properties, and has small deformation and excellent following character; the problems of poor hand feel and elasticity, poor restoring property, difficulty in assembling at low temperature in winter and initial oil leakage of traditional ACM glue oil seal can be solved; since the technological equipment is advanced, the detection method is complete and fine, and the quality control is strict, the yield of finished products can reach up to 98% or above; thus, the oil seal is recognized by users.

The invention provides a Schiff base fluorescent probe QCS 3-[N-(2-phenol methylene)] formylhydrazine base-1-(quinoline-2-base)-9H-beta-carboline QCS and a method for preparing the same. The method includes preparation steps of carrying out reaction on 3-methyl formate-1-(quinoline-2-base)-9H-beta-carboline and hydrazine hydrate to obtain 3-formylhydrazine-1-(quinoline-2-base)-9H-beta-carboline; carrying out reaction on the 3-formylhydrazine-1-(quinoline-2-base)-9H-beta-carboline and salicylaldehyde to obtain the Schiff base fluorescent probe QCS. The Schiff base fluorescent probe QCS and the method have the advantages that probe QCS solution is bright blue green in ultraviolet lamps (365 nm) in the presence of Al3+, new emission peaks occur at 490 nm locations of fluorescence emission spectra, and the fluorescence intensity is gradually improved along with increase of the concentration of the Al3+; the Schiff base fluorescent probe QCS can be used for quickly and quantitatively detecting micro / trace amounts of Al3+ from different sources in real time.

The invention provides an alarm method and system for similarity measurement of monitoring performance data and relates to the technical field of performance data alarm. The method comprises steps as follows: a time sequence of a cycle is built through discrete wavelet transform according to performance data of the cycle; a time sequence, corresponding to the time sequence of the cycle, of a last cycle is inquired; whether similarity of the time sequence of the cycle and the time sequence of the last cycle exceeds a variation range is judged, if not, the operation is returned and the time sequence of the cycle is continuously built through the discrete wavelet transform according to the performance data of the cycle, and if yes, alarm information is triggered. On the basis of a traditional strategy, the time sequence similarity strategy provided by the invention has the advantages of enriching anomalous event detection means of the system and overcoming defects of the traditional strategy in monitoring of system dynamic features, thereby being capable of realizing alarm for dynamic feature abnormity of performance time sequence data through simple configuration.