33results about How to "Improve detection effectiveness" patented technology

After some embodiments, the present invention discloses a method and a device for detecting scan attacks. The present invention parses the received message information and records the information of the destination port or the IP address in the message information; then the times, for which the destination port or the IP address are recorded in a scheduled time, are counted; and finally when the recorded times of the destination port or the IP address reach a predetermined threshold, then the present invention judges that a scan attack occurs. The device of the present invention comprises a first unit, which parses the received message information and records the destination port or the IP address, a second unit, which is used to count the times for which the destination port or the IP address are recorded in a scheduled time, and a third unit, which is used to judge that a scan attack occurs when the recorded times of the destination port or the IP address reach a predetermined threshold. In every technical scheme of embodiment, the present invention effectively detects scan attacks according to the times of the port or protocol attack in a scheduled time, thus reducing the false alarm rate and the realization difficulty of scan detection.

The invention provides a natural light interference resistant intelligent gas meter. One surface of a sampling plate provided with components and parts is toward to a sampling character wheel, and adistance between a photoelectric detector on the sampling plate and the circumference of a sampling character wheel is not more than 1mm; the sampling character wheel is provided with numbers and a reflecting surface, the numbers comprise reference numbers and general numbers, and the reference numbers are arranged above and below the reflecting surface; the heights of the reference numbers are slightly lower than that of the general numbers. The invention further provides a gas sampling and detecting method, which comprises a light protecting and detecting step, a sampling step and a standby step. According to the gas meter provided by the invention, and the distance between the sampling plate and the sampling character wheel can be controlled and the proper color of the sampling character wheel can be selected, so that the incident dose of outside light rays can be reduced, the emission current of an optoelectronic switch tube can be reduced, and the reliability of the intelligent gas meter can be improved; furthermore, according to the gas detecting method provided by the invention, the effectiveness of the detection can be ensured by the light protecting and detecting step, and the low energy consumption of the operation can be realized by the standby step.

The invention discloses an underwater wireless sensor communication networking system based on optical communication. The system comprises a water surface communication platform and underwater nodes,the underwater nodes comprise a sensor group, an optical communication assembly and a self-powered module. The underwater nodes collect data information and transmit the data information to the watersurface communication platform through communication. The networking system further comprises an underwater vehicle. The underwater vehicle is also provided with an optical communication assembly anda sensor group; data transmission is carried out between the underwater vehicle and the underwater nodes, the range of a communication networking system is greatly expanded; compared with a traditional optical communication networking mode, the optical communication networking mode is more flexible and gets rid of cable constraints, and the bit error rate is lower, compared with the prior art, thedevice is simple in structure and higher in speed, more visual, accurate and rich underwater information is provided, the bandwidth is larger, development of big data transmission is facilitated, anoptical communication probe and a detection probe can be cleaned regularly, algae or microorganisms can be prevented from wrapping the optical communication probe and the detection probe, the detection effectiveness is improved, and normal communication is guaranteed.

The invention provides a refrigerant leakage detection method and an air conditioner. The refrigerant leakage detection method comprises the following steps of S1, operating the air conditioner, judging whether a refrigerant is proper or no, if so, executing the step S2, and if not, executing the step S4; S2, judging whether a preset detection triggering condition is met or not, if yes, executingthe step S3, and if not, executing the step S1; S3, performing refrigerant leakage verification judgment, judging whether verification judgment conditions are met or not, if yes, determining refrigerant leakage, and if not, executing the step S3 again; S4, judging whether a high-pressure side leakage judging condition is met or not, if yes, determining that the high-pressure side leaks, and if not, executing the step S5; and S5, judging whether a low-pressure side leakage judging condition is met or not, if so, determining that the low-pressure side leaks, and if not, executing the step S1 again. The refrigerant leakage detection method can improve the effectiveness of refrigerant detection and enhance the safety of a whole air conditioner system; and the method can achieve the comprehensive benefits of accurate judgment, energy conservation and safety.

The invention relates to the technical field of vehicle safety using, and provides a limo alarm system. The limo alarm system comprises a human body infrared induction module, an information processing module, a power module and an alarm output module. The power module is used for providing power supplies for the human body infrared induction module, the information processing module and the alarmoutput module, a transmitting probe and a receiving probe are arranged in the human body infrared induction module, and the transmitting probe transmits infrared rays to detect an object getting close to a back door; when it is detected that the object gets close to the back door, an infrared signal is returned back to the receiving probe, the receiving probe outputs an infrared signal to the information processing module, and a horizontal detection angle between the transmitting probe and the receiving probe is 10-20 degrees; and the alarm output module is used for receiving a voltage valuesignal, and when a voltage value is larger than a set value, an alarm is output. According to the limo alarm system, compared with the prior art, technical detection can be more accurate through the limo alarm system.

The invention discloses a double-layer detection method of multidomain SDN control node failure. The method comprises the following specific procedures: heartbeat detection is executed for a control plane, wherein a result of detection is that a heartbeat request and a heartbeat response of the same control node C both are failed; then, detection of a data plane is executed; the control plane monitors a state of the data plane, when the control node D receives a LLDP sent by the data plane, the control node C is a master control node of a subdomain P, the control node D is a slave control nodeof the subdomain P and the LLDP is sent by the subdomain P; and then, the control node C is failed, and failure recovery is started at the same time. The method provided by the invention optimizes and reduces failure detection time and realizes fast detection and locating for the failure, reduces interval time of the failures in a network and improves reliability of a global network.

The invention relates to an attack defense method, an attack defense system and an attack defense device for abnormal system call, and the method comprises the steps: obtaining a system call sequencefrom an operating system when detecting that a program is executed, and returning the system call sequence to a server; performing feature encoding on the system call sequence through a second encoderto obtain a corresponding second feature vector set, the second encoder being constructed according to encoding parameters of a first encoder in a self-encoding and decoding module transmitted by theserver; and comparing the second feature vector in the feature space through a regression equation, and determining whether the system call sequence is a normal system call according to a comparisonresult, the regression equation being obtained and transmitted by performing regression equation operation on the first feature vector set by the server. By implementing the technical scheme of the invention, the detection effectiveness of unseen malicious software can be effectively improved, the operation resources can be effectively distributed, and the hardware cost is reduced.

The invention aims to provide a novel medical sample bottle with simple structure, high processing efficiency and good collection effect. The invention comprises a stirring bottle (2) with a stirring rod (1), a collecting bottle (3) and a bottle cap (4), the collecting bottle is sleeved on the periphery of the stirring bottle, and the bottom of the stirring bottle There is a gap between the bottom of the collection bottle (3), the bottom of the stirring bottle (2) is provided with a funnel (5), and a first filter (6) is fitted on the funnel, The funnel is provided with a spout (6), and the spout (7) is matched with a valve device, and the bottom of the collection bottle (3) is provided with a collection tank (9), and the cap (4) ) is provided with a liquid addition hole (10) and a sampling hole (11), the liquid addition hole (10) communicates with the inner cavity of the stirring bottle (2), and the sampling hole (11) is connected to the collection Groove (9) is connected. The invention can be applied to the field of medical equipment.

The invention provides a refrigerant leakage detection method and an air conditioner. The refrigerant leakage detection method includes the following steps: S1: the air conditioner is running, and a first-level judgment is performed to determine whether the first-level judgment condition is satisfied; Refrigerant leakage; if not, go to step S2; S2: Execute secondary judgment to determine whether the secondary judgment condition is met; if yes, refrigerant leakage occurs; if not, go to step S3; S3: Judgment whether the preset detection trigger is met Conditions; if yes, execute step S1; if no, re-execute step S3; the detection side of the refrigerant leakage described in the present invention can improve the effectiveness of refrigerant detection and enhance the safety of the entire air-conditioning system; that is, the method can achieve Comprehensive benefits of accurate judgment, energy saving and safety.

The invention discloses a double-layer detection method of multidomain SDN control node failure. The method comprises the following specific procedures: heartbeat detection is executed for a control plane, wherein a result of detection is that a heartbeat request and a heartbeat response of the same control node C both are failed; then, detection of a data plane is executed; the control plane monitors a state of the data plane, when the control node D receives a LLDP sent by the data plane, the control node C is a master control node of a subdomain P, the control node D is a slave control nodeof the subdomain P and the LLDP is sent by the subdomain P; and then, the control node C is failed, and failure recovery is started at the same time. The method provided by the invention optimizes and reduces failure detection time and realizes fast detection and locating for the failure, reduces interval time of the failures in a network and improves reliability of a global network.

The invention discloses a bot detection and classification method combining dynamic and static features, which detects bots based on static feature information; the feature selection in the detection process adopts the improved TF-IDF algorithm, and the improved TF-IDF algorithm It is to add the category discrimination factor GF when the TF-IDF algorithm calculates the TF-IDF weight, which is used to represent the ratio of the occurrence degree of a feature item in a certain category to the occurrence level in all other categories; run the detection bot, extract The API sequence and network traffic information of the bot running are processed to obtain the bot family classification features; based on the bot family classification features, the bots are classified. The invention can automatically classify, reduce time consumption and improve classification efficiency.

The invention relates to the technical field of pharmaceutical equipment, and discloses a rejecting device capable of automatically detecting defective products in the capsule production process. The rejecting device comprises a detection table, the interior of the detection table is rotatably connected with a conveying belt, the side face, close to the conveying belt, of the detection table is fixedly connected with a rack, the lower end of the rack is fixedly connected with an air conveying pipe, a supporting plate is fixedly connected to the interior of the air conveying pipe, a rotating disc is rotationally connected to the upper end of the supporting plate, and fan blades are fixedly connected to the circle center of the rotating disc. Baffle plates are opened, so that internal air can be discharged out of the device through air outlet holes, and the air outlet holes can be quickly blocked after the air is completely discharged, so that the internal device pollution caused by external air backflow due to internal pressure reduction is avoided, the external air can be prevented from flowing back to the interior of the detection device, the precision of internal components of the detection device is improved, and the detection effectiveness is improved.

The invention relates to a method for detecting abnormal fall behavior based on time-space motion characteristics. Based on image information, the five-point inverted pendulum model that reflects the posture of the human body is refined, and then the standard space-time model of motion that reflects the dual characteristics of time and space is constructed; then based on the standard space-time diagram, the essential characteristics of motion are studied by applying the principle of dynamics. Construct a fixed-axis motion model, realize feature quantification with rotational energy, construct a feature-encoded data set of falling behavior, normal walking or standing state, and conduct training to form a second-class classifier, which is used to classify the processed real-time collected video data Identify and judge whether it is an abnormal falling behavior. The invention adopts a single-view scene, and the algorithm has stronger real-time performance, which avoids the synchronization of multi-view scenes in scene fusion and other problems; it uses rotation energy as a feature, avoids the limitation of morphological features on forward falling posture, and improves The detection is effective, and it has good universality for typical fall postures.

After some embodiments, the present invention discloses a method and a device for detecting scan attacks. The present invention parses the received message information and records the information of the destination port or the IP address in the message information; then the times, for which the destination port or the IP address are recorded in a scheduled time, are counted; and finally when the recorded times of the destination port or the IP address reach a predetermined threshold, then the present invention judges that a scan attack occurs. The device of the present invention comprises a first unit, which parses the received message information and records the destination port or the IP address, a second unit, which is used to count the times for which the destination port or the IP address are recorded in a scheduled time, and a third unit, which is used to judge that a scan attack occurs when the recorded times of the destination port or the IP address reach a predetermined threshold. In every technical scheme of embodiment, the present invention effectively detects scan attacks according to the times of the port or protocol attack in a scheduled time, thus reducing the falsealarm rate and the realization difficulty of scan detection.

The invention provides a method for detecting refrigerant leakage and an air conditioner. The method for detecting refrigerant leakage includes the following steps: S1: the air conditioner is running, and it is determined whether the refrigerant is appropriate; if yes, execute step S2; if not, execute Step S4; S2: Determine whether the preset detection trigger condition is met; if yes, execute step S3; if not, execute step S1; S3: perform refrigerant leakage verification judgment, and determine whether the verification judgment condition is satisfied; if yes, refrigerant leakage; If not, re-execute step S3; S4: judge whether the high-pressure side leakage judgment condition is met; if yes, the high-pressure side leaks; if not, execute step S5; S5: judge whether the low-pressure side leakage judgment condition is met; No, re-execute step S1; the refrigerant leakage detection method of the present invention can improve the effectiveness of refrigerant detection and enhance the safety of the entire air-conditioning system; the method can achieve comprehensive benefits of accurate judgment, energy saving and safety.

The invention relates to the technical field of vehicle safety using, and provides a limo alarm system. The limo alarm system comprises a human body infrared induction module, an information processing module, a power module and an alarm output module. The power module is used for providing power supplies for the human body infrared induction module, the information processing module and the alarmoutput module, a transmitting probe and a receiving probe are arranged in the human body infrared induction module, and the transmitting probe transmits infrared rays to detect an object getting close to a back door; when it is detected that the object gets close to the back door, an infrared signal is returned back to the receiving probe, the receiving probe outputs an infrared signal to the information processing module, and a horizontal detection angle between the transmitting probe and the receiving probe is 10-20 degrees; and the alarm output module is used for receiving a voltage valuesignal, and when a voltage value is larger than a set value, an alarm is output. According to the limo alarm system, compared with the prior art, technical detection can be more accurate through the limo alarm system.

The invention discloses a software protection method based on network, a client side and a server, which is used for improving the accuracy and the effectiveness for detecting whether client side software is distorted. The method comprises: a server side receives a program operation request sent by the client side and sends random data to the client side according to the program operation request; the client side adopts a set Hash algorithm to determine a first Hash value according to client side identification, random data and a program code segment which is stored in the client side and corresponds to the edition information of software to be operated; the server side adopts the set Hash algorithm to determine a second Hash value according to client side identification, random data and a program code segment which is stored in the client side and corresponds to the edition information of software to be operated; the first Hash value and the second Hash value are compared to determine whether the client side is permitted to execute the program according to the comparison result. The technical scheme of the invention improves the accuracy and the effectiveness for detecting whether client side software is distorted.

The invention discloses a method and device for intelligent identification and early warning of group fog. The steps of the method include: first extracting a moving target in a video image, then identifying the characteristics of the moving target to determine whether it is a group fog, and finally releasing the group fog Early warning information: the device includes a main control module, a heavy fog intelligent detection module, a group fog intelligent identification and analysis module and an early warning signal release module connected to it. Compared with the prior art, the present invention adopts a highly integrated integrated design, combines optical detection and video detection, solves the problem of single fog detection technology, and has the advantages of high detection effectiveness and high precision.

The invention discloses an electromagnetic surveying coil support and a laying method thereof. The electromagnetic surveying coil support comprises an annual support air bag equipped with an inflation valve. The inflation valve is connected with an air pump regulator via an air conducting flexible pipe. Coil suspension loops are uniformly distributed on the inner ring of the support air bag. A concave groove is disposed on the surface of the outer ring of the support air bag. A coil winding track is printed on the bottom of the concave groove. The support air bag is inflated in order to form the fixed coil support. The electromagnetic surveying coil support is convenient to carry, easy to lay, flexible to use. The air bag is made of butyl rubber, resistant to wear and corrosion, and elastic, and may satisfy measurement requirements in special environment. Having no metallic component, the electromagnetic surveying coil support can be prevented from influencing detection signal so that detection validity is increased.

The invention discloses a human epididymis protein immune detection kit and its use method. Its active ingredients include labeled immune gold nanoparticle reagent and Fe3O4@Au immune nanoparticle reagent with a volume ratio of 1:1. Surface-enhanced Raman spectroscopy and core-shell magnetic materials. After activation of carboxyl groups on the surface of gold nanoparticles, inject human epididymis protein antibody to obtain labeled immune gold nanoparticle reagent; after amination modification on the surface of Fe3O4, mix with gold nanoparticles, inject human epididymis protein antibody, and obtain a reagent with good magnetic properties and Fe3O4@Au immune nanoparticle reagent with excellent SERS enhanced activity. The kit provided by the invention has mild conditions for use, and portable detection instruments can be used without large-scale equipment; the detection limit of human epididymis protein can reach femtogram levels, and has high sensitivity; the base of the kit has a recyclable characteristics, reducing the cost of testing.

The invention provides a natural light interference resistant intelligent gas meter. One surface of a sampling plate provided with components and parts is toward to a sampling character wheel, and adistance between a photoelectric detector on the sampling plate and the circumference of a sampling character wheel is not more than 1mm; the sampling character wheel is provided with numbers and a reflecting surface, the numbers comprise reference numbers and general numbers, and the reference numbers are arranged above and below the reflecting surface; the heights of the reference numbers are slightly lower than that of the general numbers. The invention further provides a gas sampling and detecting method, which comprises a light protecting and detecting step, a sampling step and a standby step. According to the gas meter provided by the invention, and the distance between the sampling plate and the sampling character wheel can be controlled and the proper color of the sampling character wheel can be selected, so that the incident dose of outside light rays can be reduced, the emission current of an optoelectronic switch tube can be reduced, and the reliability of the intelligent gas meter can be improved; furthermore, according to the gas detecting method provided by the invention, the effectiveness of the detection can be ensured by the light protecting and detecting step, and the low energy consumption of the operation can be realized by the standby step.

The invention discloses an underwater wireless sensor communication networking system based on optical communication, which includes a surface communication platform and an underwater node. The underwater node includes a sensor group, an optical communication component, and a self-power supply module, and the underwater node collects data. Information and communication are transmitted to the surface communication platform. The networking system also includes an underwater vehicle. The vehicle is also equipped with optical communication components and sensor groups. The data transmission between the vehicle and the underwater node greatly expands Compared with the traditional optical communication networking method of this application, it is more flexible and free from the shackles of cables, and has a lower bit error rate and a higher rate, thereby providing more intuitive, accurate and rich underwater information. Larger bandwidth is also conducive to the development of big data transmission. It can also regularly clean the optical communication probe and detection probe, so as to prevent algae or microorganisms from covering the optical communication probe and detection probe, improve detection effectiveness and ensure normal communication.

The invention discloses an external wall insulation board impact resistance detection equipment, and relates to the technical field of impact resistance detection. The technical scheme is characterized in that the external wall insulation board impact resistance detection equipment comprises an equipment body and a material receiving box body fixed at the bottom of the equipment body, the equipment body is internally provided with a detection cavity, the bottom of the detection cavity is provided with a blanking notch used for communicating with a material receiving box body, and the detection cavity is internally provided with a clamping and fixing mechanism of which the two ends are rotatably connected with the equipment body and a hinge part which is fixedly connected with the top of the equipment body; the hinge part is in hinged connection with an impact detection part which is in contact with an external wall insulation board to carry out impact resistance detection; a clamping and fixing part is used for fixing the external wall insulation board and enabling an included angle formed when an impact detection part is in contact with the external wall insulation board to be larger than 0 degree and smaller than 180 degrees. According to the invention, the precision of the contact position of the external wall insulation board and an impact ball is improved, so that the detection equipment has the effect of improving the detection effectiveness.