44 results about "Prevention approach" patented technology

The invention relates to a system for monitoring and preventing tumble, which comprises equipment for monitoring and preventing tumble, a server provided with a data analysis model, and an electronic receiving terminal. The equipment for monitoring and preventing tumble comprises a sensor unit, an analog-digital converter, a microcontroller, the peripheral circuit of the microcontroller and an expansion module which are successively connected. The invention discloses a method for monitoring and preventing tumble, which can be used for monitoring a wearer in real time by comprehensively analyzing the information such as the movement data, the environment data, the physiological parameters, the location data, pictures and the like, particularly can be used for monitoring whether old people are in the dangerous condition of the tumbling or nearly tumbling, and emitting an alarm signal in the dangerous condition. The records about the amount, frequency, type and time of tumbling or nearlytumbling accidents can be generated according to the information, so that caregivers can provide a better suggesting and preventing method for patients. Because the analysis is carried out by simultaneously utilizing the current data and the previously recorded data, the system provided by the invention can be used for monitoring and preventing the occurrence of tumbling accidents more accurately.

The invention discloses a vehicle and pedestrian collision preventing method and system. After a first predicted position of a pedestrian after a set time interval and a second predicted position of avehicle after the set time interval are predicated, a first predicated motion area of the pedestrian after the set time interval is correspondingly drawn according to a real-time motion speed of thepedestrian; and then a possible collision between the vehicle and the pedestrian can be predicated according to a coincidence situation between the first predicated motion area of the pedestrian and the second predicted position of the vehicle; and collision early warning is performed. According to the vehicle and pedestrian collision preventing method and system, by dynamically predicating specific positions of the pedestrian and the vehicle after a section of time in the future, the positions of the pedestrian and the vehicle can be accurately predicated; the predication accuracy is higher;the possibility of the collision between the vehicle and the pedestrian can be effectively predicated so that the collision between the pedestrian and the vehicle is effectively prevented; and therefore, a purpose of reducing traffic accidents is achieved; and the vehicle and pedestrian collision preventing method and system can be widely applied to automobile intelligent technologies.

The embodiment of the invention discloses a method for identifying abnormal electricity utilization users. The method includes the following steps that multiple month line-loss rates of each line-loss line are obtained; whether each line-loss line has two month line-loss rates larger than the preset threshold or not is judged; if yes, the actual line-loss line and the line-loss mouth are determined; any time period in one line-loss month of one actual line-loss line is selected to be tested, sample data relevant to electricity utilization of all the users on the line in the test period are obtained, and the prior probabilities and the posterior probabilities of all the users are obtained; the category probabilities of all the uses are obtained with the Bayes formula according to the obtained prior probabilities and the obtained posterior probabilities of all the users, and the user with the largest numerical value in the obtained category probabilities is determined as the suspicion user. The embodiment of the invention further discloses a system for identifying the abnormal electricity utilization users. According to the method and system for identifying the abnormal electricity utilization users, the problems that in the prior art, when the users who steal and leak electricity are identified, a hardware prevention method is large in investment cost and a software prevention method is confined to individual users are solved.

The invention relates to a predictive commutation failure prevention method, apparatus and device. In the method, a needed angle Alpha is taken from output of a phase-locked loop and the zero crossing point and half-period time of an AC synchronous voltage no longer need to be measured. Because the commutation margin areas of 12 bridge arms are calculated at the same time, the pre-trigger valve number does not need to be considered anymore, and minimum values of the 12 areas are selected so that the effect of commutation failure prevention is better. DC shaping and a nonlinear compensation technology are used to correct post-trigger commutation voltage and DC fluctuation so as to enhance the commutation failure prevention capability.

There is provided a lifestyle disease prevention apparatus capable of objectively recognizing physical condition of a test subject. The apparatus includes: a biological information storing unit in which biological information of the test subject in connection with test subject identification information which identifies the test subject is stored in advance; and a risk calculating unit which reads the biological information in connection with the selected test subject identification information from the biological information storing unit and calculates a lifestyle disease probability that the test subject belongs to a progress stage of each disease targeted for prevention and/or improvement which is preset on the basis of the read biological information.

The invention discloses a three-dimensional-point-cloud-data-based prevention method of a coal mine roof disaster. System equipment comprises a ground analysis device arranged on the ground, an underground center station, a plurality of three-dimensional laser scanners having same parameters, and a three-dimensional point cloud data processing chip, wherein the center station, the plurality of three-dimensional laser scanners, and the three-dimensional point cloud data processing chip are arranged underground. All underground devices are intrinsically safe ones. According to the method, the possibility of roof disaster occurrence is analyzed based on the point cloud data difference. The coal mine roof disaster risk is predicted by using a method of analyzing three-dimensional point cloud data. The structure is simple; the devices are easy to arranged; the adaptability and recognition rate are high; calculation is simple; the operation efficiency is high; manual intervention is reduced; the low cost is low and the adaptability of the system is high; and hardware and software can be upgraded or repaired conveniently. A three-dimensional voxel filtering algorithm is employ; because of high stability and reliability of the algorithm, data compression, being filtering, can be carried out on the collected three-dimensional point cloud data of the roof rapidly and effectively and the searching can be accelerated greatly. On the basis of a three-dimensional normal distribution transform algorithm, rapid convergence can be realized and thus problems of poor registration convergence and frequent occurrence of local optimum of the common algorithm of the three-dimensional point cloud data can be solved; and the time is saved and complexity of the common algorithm can be reduced. The method can be applied to monitoring of the roof falling disaster in a complex environment; the monitoring precision and efficiency can be improved effectively; and great convenience is provided for safety production.

A method, apparatus or computer program implements an overload prevention approach involving monitoring a speed (410) o a motor, detecting an overload condition of the motor based on the monitored speed, and controlling an operation of the motor according to the detected overload condition.

A method and system for preventive maintenance of electromechanical system device, storage medium are disclosed. By obtaining the value of the characteristic parameters of the electromechanical equipment of the electromechanical system, according to the numerical value of the characteristic parameter and the corresponding preset maintenance threshold, the preventive approach value of the characteristic parameter is calculated, according to the prevention approach value of the characteristic parameter and the preset weight of the characteristic parameter, according to the preventative maintenance suggestion and/or alarm treatment suggestion of the integrated preventive value, preventive maintenance can be carried out according to the preventative maintenance suggestion, preventive alarm canbe carried out to the mechanical and electrical equipment according to the pushing alarm treatment suggestion, and the repairman is prompted to carry out preventive maintenance; predicting or indicating potential failure before actual failure of mechanical and electrical equipment is realized, which provides better maintenance opportunity for building owners or site operation and maintenance personnel, effectively reduces the failure frequency of mechanical and electrical equipment, changes passive maintenance into active protection, and avoids the occurrence of major equipment failure.

The invention discloses desulfurized slurry blinding prevention and treatment methods employing a wet process, and belongs to the technical field of a wet flue-gas desulfurization system of a thermal power plant. The blinding prevention method is characterized by comprising the steps of carrying out classification control and periodic analysis aiming at different running conditions in limestone slurry supply adjustment to grasp the chemical ingredient of the slurry and correct deviation timely; and timely adopting an adjusting technology to prevent blinding aiming at the poisoning blindness precursor; and the blinding treatment method comprises the steps of reasonably reducing the slurry supply amount to digest excessive limestone and control the pH value of the slurry to reduce to the lowest threshold; reasonably increasing the slurry supply amount to ascend and restore the pH value of the slurry; and reasonably controlling the slurry supply amount to restore the desulphurization efficiency to a design value. By application of the methods, the probability of poisoning blindness accidents can be effectively reduced; the reliability and the stability of the desulphurization system are improved; meanwhile, the treatment can be timely and effectively carried out aiming at the poisoning blindness accidents, so that the system can rapidly get rid of adverse effects caused by the poisoning blindness accidents; and the extent of injury caused by the poisoning blindness accidents can be reduced.

A dead battery preventing device enables to prevent an engine start failure (a dead battery) of a vehicle having an economy running function which is caused by the vehicle's being left stand in an engine stall state. The dead battery preventing device to be mounted on a vehicle having an economy running function comprises a unit for judging whether an informing condition for informing a user that the vehicle is in an engine stall state has been satisfied or not, and a unit for informing the user that the vehicle is in the engine stall state when it is judged that the informing condition has been satisfied, wherein the informing condition includes that the vehicle is in the engine stall state and that the vehicle shifted from an economy running state to the engine stall state.

The invention discloses a commutation failure early detection and prevention method and device and an application thereof. An existing commutation failure detection method still has the problems of low response speed of a control system, excessive dependence on simulation calculation, lack of physical model support and theoretical basis, insufficient universality and the like. The voltage waveformafter a fault is quickly fitted out through a three-point method, and a supplied minimum commutation area is calculated; a demanded commutation area is compared with the supplied minimum commutationarea, and communication failure detection is carried out in advance; and measures are taken according to a detection result to prevent commutation failure. According to the invention, commutation failure can be detected in advance, an effective signal can be provided for DC control, commutation failure can be prevented, the calculation amount is small, the speed is high, and the method and the device are not influenced by the fault type and the fault time.

The invention provides a prevention method for a shuibiezi disease of crabs. The prevention method comprises the following steps: (1) a pond is disinfected thoroughly and viable bacteria are used for bottom improvement after adult crabs in previous year are fished or after a new pond is well dug; (2) an aeration facility is arranged in the pond; (3) a temporary culture pond is arranged for concentrated and intensified culture of crab species; (4) high-quality crab species are selected before stocking; (5) calcium and phosphorus in water and feed are supplemented regularly in a culture period; (6) an anti-microbial chemical is splashed in the whole pond every half month from May to August when the shuibiezi disease occurs frequently; (7) an immunopotentiator and a viable bacteria preparation are taken orally twice or three times in each month; (8) water is changed once every 10-15 days; (9) the water quality or a substrate is improved every 15-20 days, and water quality improvement and substrate improvement are performed alternately; (10) aquatic plants are controlled away from excessively fast growth. According to the measures such as disinfection of the crab pond, viable bacteria for bottom improvement, water quality improvement, juvenile crab culture and the like, the water quality, as well as nutrition and antibacterial components in the feed, is controlled very well, the morbidity and mortality are reduced effectively, and the crab quality is improved.

The present invention relates to a portable transcutaneous electrical nerve stimulation system and a method thereof. The portable transcutaneous electrical nerve stimulation system comprises a power control unit, a micro-control unit, a digital analog converter, a feed circuit unit, a working waveform driver, a monitoring circuit unit, a power amplifier and an output circuit unit, wherein the micro-control unit outputs a preset electric stimulation signal via the working waveform driver, and the electric stimulation signal stimulates the skin electrically after passing the power amplifier and via the output circuit unit; the monitoring circuit unit real-timely monitors an output current of the output circuit unit, a current signal is converted by the digital analog converter and then is sent to the micro-control unit to be compared with a preset electric stimulation parameter, and the micro-control unit corrects the electric stimulation signal; the power control unit and the feed circuit unit control the electric energy needed by the power amplifier via the micro-control unit, and turn off the electric energy at the working clearance of the electric stimulation signal. The portable transcutaneous electrical nerve stimulation system and the method thereof are reasonable in design, are suitable for the habitus of the people of our country, and provide important parameter support for preventing the lower limb deep venous thrombosis via the transcutaneous electrical nerve stimulation and a new prevention approach.

The invention relates to a predictive commutation failure prevention method and device. In the method, a needed angle Alpha is taken from output of a phase-locked loop and the zero crossing point and half-period time of an AC synchronous voltage no longer need to be measured. Because the commutation margin areas of 12 bridge arms are calculated at the same time, the pre-trigger valve number does not need to be considered anymore, and minimum values of the 12 areas are selected so that the effect of commutation failure prevention is better. DC shaping and a nonlinear compensation technology are used to correct post-trigger commutation voltage and DC fluctuation so as to enhance the commutation failure prevention capability.

The invention relates to an accident prevention method in a mobile phone using process based on user behavior analysis. The human body behavior recognition module is used for recognizing the human body behavior and the posture which are performed by the user at the current moment to obtain the atomic behavior mode of the user at the current moment; o road network information near the position where the user is located at the current moment is obtained through a road network matching module to obtain spatial position information of the user at the current moment; an interaction event between the user and the mobile phone at the current moment is monitored through an interaction identification module to obtain a mode that the user interacts with the mobile phone at the current moment; and adanger situation recognition model is established, a danger coefficient of the user under the danger situation processed at the current moment is obtained, and a warning is given to the user through the client APP according to the danger coefficient.

The invention relates to a predictive commutation failure prevention method and device. In the method, a needed angle Alpha is taken from output of a phase-locked loop and the zero crossing point and half-period time of an AC synchronous voltage no longer need to be measured. Because the commutation margin areas of 12 bridge arms are calculated at the same time, the pre-trigger valve number does not need to be considered anymore, and minimum values of the 12 areas are selected so that the effect of commutation failure prevention is better. DC shaping and a nonlinear compensation technology are used to correct post-trigger commutation voltage and DC fluctuation so as to enhance the commutation failure prevention capability.

The invention discloses a prevention system of zoonosis and a prevention method thereof. The method comprises the steps of storing a pet vaccinating record on a near field chip of a pet end and storing a user vaccinating record on a portable device with a Near Field Communication function, receiving the pet vaccinating record and transmitting the pet vaccinating record together with the user vaccinating record to a server side through the network when the portable device with the Near Field Communication function senses the near field chip of the pet end, making the server side conduct comparative analysis and generate a suggestion report according to the vaccinating records, and then transmitting the suggestion report to the portable device to be outputted. In this way, the technical effect of improving the convenience in preventing zoonosis is achieved.

The present invention relates generally to a pharmaceutical formulation for use in the treatment and/or prevention of restenosis in a subject in need thereof. Methods of treatment and/or prevention are also provided.

The invention discloses a method for preventing a map from shifting in the process of wafer test. For PTPA (Probe To Pad Alignment) before wafer test, pins are searched by use of a manual selection mode instead of a conventional method using probe station equipment, and the probes in two farthest specific sites are selected as positioning sites. By using the method, map shifting in the process of multi-site parallel test is avoided. The method is an effective and reliable prevention method.