1335results about How to "Improve warning effect" patented technology

The invention discloses a fire video detection and early warning method based on image multi-feature fusion, and the method comprises the steps: firstly carrying out the preprocessing after an image sequence of a video is obtained; extracting a foreground region, and obtaining a detected candidate region; secondly, extracting static features and dynamic features from the candidate areas, judging whether flames are contained or not by taking the static features and dynamic features as input of an SVM classifier when the flames are detected, and obtaining whether smoke is contained or not afterlogic combination selection and calculation are conducted on feature judgment results when the smoke is detected; finally, if it is detected that flames or smoke exists, carrying out fire judgment according to the growth trend of the flames or smoke; when it is judged that a fire occurs, carrying out fire alarm on the monitoring site, and otherwise carrying out fire alarm only on the background. The method can be combined with an existing monitoring system to be applied to places such as shopping malls and warehouses, the fire detection and early warning cost is reduced, the detection method is good in generalization ability and applicability, reliable fire detection and early warning functions can be provided, and the method has practical value.

The invention relates to a ship conflict early warning method. The ship conflict early warning method comprises the following steps that the real-time position information and the historical position information of a ship are obtained through maritime radar and are processed primarily; ship trajectory data are preprocessed at each sampling moment, clustering is conducted on the ship trajectory data at each sampling moment, parameter training is conducted on the ship trajectory data at each sampling moment by means of a hidden Markov model, the hidden state q corresponding to an observation value at the current moment is obtained at each sampling moment according to parameters of the hidden Markov model by means of the Viterbi algorithm, a predicted value of the position of the ship in the future time period is obtained at each sampling moment through a set prediction time domain W based on the hidden state q at the current moment, the dynamic behaviors of the ship are monitored in real time by establishing a safety rule set, and a warning message is sent out in time. According to the ship conflict early warning method, the trajectory of the ship is predicted in real time in a rolling mode, effective early warning of maritime conflicts is achieved, and the safety of marine traffic is improved.

The invention relates to a vehicle-road synergic early warning system with a fast passage prompt function and an early warning method. The system obtains the distance between a vehicle and an intersection through the signal strength measurement between an intersection controller and a wireless transmission module of a vehicle-mounted controller; and by combining the distance between the vehicle and the intersection, measured by two controller GPS (global positioning system) modules, the system finally obtains the distance between the vehicle and an intersection stop line through an information fusion method. The GPS module judges the running direction of the vehicle, and the intersection controller transmits the signal light information of the vehicle running direction and the GPS information thereof to the vehicle-mounted controller by use of the communication function of the wireless transmission module. The system has a fast passage prompt function, and can correctly guide the vehicle to fast pass the intersection so as to ensure the driving safety.

The invention discloses an integrated monitoring and early warning system for a geological mountain torrent disaster and a realization method thereof. The system comprises an early warning platform and at least one wireless sensor network. The wireless sensor network consists of an intelligent gateway and a plurality of monitoring piles; and the monitoring piles include a flood monitoring pile that is used for monitoring a water flood level alarming grade and an inclination angle of the pile body and a vibration monitoring pile that is used for monitoring an acceleration and an inclination angle due to an impact on the pile body. And the monitoring piles also have field warning functions. The data of the monitoring piles are sent to the early warning platform by the intelligent gateway; and the early warning platform displays the monitoring data information on a GIS information map in real time and displays the information in real time for early warning for the public in a web mode. According to the invention, after the functions are localized at the system network, the economics of scale due to data collection are obtained rapidly. Therefore, a novel technical scheme is provided for monitoring and early warning of the geological disasters.

The invention relates to a distributed power transmission line outside force destroy proofing on-line monitoring system and monitoring method. The method includes a video monitoring host, a video monitoring subunit, an acousto-optic alarm subunit, a data center station and a monitoring terminal, the video monitoring host and the video monitoring subunit are arranged at the two ends of a power transmission line tower cross arm, and the acousto-optic alarm subunit is distributed on the power transmission lead. The invention creatively proposes a time synchronous double-video monitoring manner, the detection range is wide, a coordinate system is established based on the geographical position information of the transmission tower and the transmission conductor, the fault hidden trouble diagnosis of a moving object in the monitoring area can be completed in the video monitoring host, and a lot of video information is not needed to be uploaded to the data center station, so that the data communication fee is saved, the system power consumption is reduced, preventive measures are taken for the power transmission line outside force destroy faults, and the stable operation level of the power grid is improved.

A lighting handle of a car comprises a handle body having a recess at an inner surface thereof; a light emitting device being installed at an inner side of the recess of the handle body; the light emitting device including: a seat installed with a supporting surface; one side of the supporting surface being formed with an inserting groove; a circuit board installed on the supporting surface of the seat; the circuit board being installed with a plurality of lighting emitting bodies; the circuit board having a power wire for connecting other electric circuit in a car; and a transparent lamp cover installed on the seat; an inner wall of the cover being a reflecting surface; one side of the cover having a protrusion which has passed through the through hole of the circuit board to be inserted into the inserting groove of the seat.

The present invention discloses a bike handlebar grip structure, which comprises an elastic grip body and a caution/direction light device. The elastic grip body can elastically and detachably sleeve the handlebar and has a switch device. The caution/direction light device is hanged to the outer end of the elastic grip body and electrically connected to the switch device of the elastic grip body. The width and length of the caution/direction light device are greater than the diameter of the elastic grip body. The present invention can be conveniently assembled to or disassembled from a bike. Further, the caution/direction light device of the present invention is hanged to the outer end of the handlebar. Thus, the preset invention can promote the warning effect and biking safety.

The invention discloses a forest fire prevention positioning prewarning monitoring system. The system mainly comprises a plurality of monitoring nodes arranged in a forest, a positioning monitoring forwarding transmission unit and a monitoring center, wherein the monitoring node is used for monitoring the temperature and the smoke concentration in the forest, judging the temperature and the smoke concentration are in the specified range by the logical operation, and transmitting the alarm value out of the range to the adjacent monitoring node or the positioning monitoring forwarding transmission unit; the positioning monitoring forwarding transmission unit receives the alarm value transmitted by the monitoring node and forwarding the positioning physical information of the positioning monitoring forwarding transmission unit and the alarm value to the monitoring center; and the monitoring center receives and stores data transmitted by the positioning monitoring forwarding transmission unit, and providing the alarm and positioning information service. The system can give a prewarnning for the forest fire to a large extent by monitoring the temperature of the forest and has the advantages of a large number of monitoring nodes which are distributed in a starlike form, and good prewarning effect.

The invention relates to an attention device, in particular to a traffic attention device for an expressway. The traffic attention device for the expressway achieves the technical purposes that the attention effect is good, the attention device is marked, and the attention of people is easily aroused. In order to achieve the technical purposes, the traffic attention device for the expressway comprises a base and the like. A fixing plate is vertically arranged on the top of the base, a lifting device is arranged on the left side of the top of the base, and a reminding device is arranged on the front side of the right portion of the fixing plate. The traffic attention device achieves the effects that the attention effect is good, the attention device is marked, and the attention of people is easily aroused.

The invention discloses a method for designing a forest fire prevention early warning system. The method comprises the following steps that (1) monitoring terminals are distributed at all monitoring points of a forest so as to collect environment information around the monitoring points and then the environment information and position information of the monitoring points are sent to a remote monitoring center in a binding mode; (2) the remote monitoring center is provided with a monitoring data base server and a monitoring software platform and a forest fire alarm model which is set in advance is further stored in the monitoring data base server; (3) the monitoring software platform reads the environment information, newly received by the monitoring data base server, around the monitoring points and conducts data processing, then analysis and comparison are conducted on the forest fire alarm model and the processed environment information, if the forest fire alarm model is matched with the processed environment information, the situation that corresponding forest fire occurs to the monitoring point is judged, an alarming sound is emitted, meanwhile, warning information is generated and a pre-protocoled fire prevention measure scheme is sent to a forest fire prevention center. The method for designing the forest fire prevention early warning system is reasonable in design, low in erection cost, stable in running and reliable in monitoring.

The invention provides a brand new weaving concept of nanometer fluorescent fiber fabrics which has an environmental warning effect and a method thereof. 0.15 portion to 0.2 portion of dispersant is add into 3 portions to 4 portions of fluorescent nano particles and 7 portions to 6 portions of high polymers to be evenly mixed; the mixture is made into particles to serve as a main part which has fluorescent effect in compound fibers. The content of nanometer fluorescent material in the mixed polymers is no more than 40 percent and then mixed with fiber forming high polymer in a certain ratio to serve as the core layer of a fiber sheath-core structure; finally the high polymers mixed with the fluorescent material spin the core layer on a compound spinning machine with the sheath-core structure. Spinning by using the polymers mixed with fluorescent materials has good effect of environmental radiation warning, great health-care effect on the health of human beings, low production cost, convenience for scale production and relatively good economic and social benefits.

The invention relates to an electronic nose used for food safety monitoring, which comprises an MEMS sensor group, a signal processing circuit and a computer, wherein the MEMS sensor group comprises an environmental sensor and a plurality of gas sensors; the environmental sensor is used for acquiring the response of the temperature change of the gas environment; each gas sensor is used for acquiring the response of the concentration change of each gas composition; the signal processing circuit is used for storing a voltage signal output by each sensor to obtain a corrected frequency signal of temperature drift by differential operation and doing the time differentiation for the corrected frequency signal to obtain a frequency shift signal output to a control module; the control module and a pattern recognition module are pre-arranged in the computer; the control module is used for sending work orders to each sensor, the signal processing circuit and the pattern recognition module and transmitting the signal input by the signal processing circuit to the pattern recognition module; and the pattern recognition module is used for analyzing and processing the signal input by the control module and judging the composition information of the gas to be detected. The electronic nose has simple structure and is suitable for the long-time monitoring in different food storage environments.

The invention discloses a novel home security system. The novel home security system comprises a host, a remote controller, a remote terminal and a sensing device provided with a radio transmitter-receiver set; the host is provided with a radio transmitting-receiving module, and the host is in radio connection with the sensing device, and therefore, control and information transmission can be realized through receiving and transmitting radio signals; the host is provided with a system state triggering control module, so that system working states can be selected according to conditions detected by system devices and the sensing device; and the sensing device is provided with a backup power supply. With the novel home security system of the invention adopted, the system working states can be reasonably controlled, and power consumption can be reduced, and standby time can be increased, and storage space can be saved; the sensing device and the host can be connected with each other through radios, and therefore, network connections can be diversified, and high security and firmness can be realized; the sensing device is ganged, so that a better early warning effect can be realized; and control terminal operation authority is clear, and a user identification function is realized, and therefore, false warning can be decreased, and management can be facilitated.

The invention discloses an emergency brake warning lamp, which comprises a deceleration and acceleration sensing unit, a central control unit, and a luminous unit, wherein the deceleration and acceleration sensing unit senses the deceleration and acceleration when a vehicle is braked, and simultaneously correspondingly outputs signals; the central control unit is arranged in the lamp, is electrically connected with the deceleration and acceleration sensing unit, and correspondingly outputs driving signals when simultaneously receiving a speed signal and a brake signal of the vehicle and the signals of the deceleration and acceleration sensing unit; and the luminous unit is arranged in the lamp and electrically connected with the central control unit, so that the luminous unit is started bythe driving signals output by the central control unit and performs luminous display. By taking the speed signal, the brake signal and the deceleration and acceleration signals as judging conditions,the lamp has different display states such as a common brake state, an emergency brake state and the like to improve the warning effect on rear vehicles, increase driving safety and reduce the occurrence of accidents.

The embodiment of the invention discloses a realization method of video monitoring and monitoring equipment. According to the method, thermal inductance voltage monitoring based on PIR (Pyroelectric Infrared Sensor) and a motion detection function based on video capturing are combined; when any one detection result has abnormal information, alert verification is carried out through the other detection result; only if the verification passes, alert operation is triggered, so that the sensitivity and the accuracy of monitoring and alerting are improved by utilizing respective advantages of motion detection and the thermal inductance voltage monitoring; defects in the prior art that PIR detection and the motion detection are independently used are avoided and the video monitoring is improved; and particularly, an early warning effect of the video monitoring in application scenarios with poor light is improved, and the false alarm rate and the missed alarm rate in a monitoring range are reduced.

The invention discloses a system and a method of piezoelectric electricity self-generating speed and distance intelligent monitoring. The system comprises a speed and distance intelligent monitoring unit and a piezoelectric electricity self-generating unit. The speed and distance intelligent monitoring unit comprises a front piezoelectric belt and a rear piezoelectric belt which are laid under a road face in transversal and spaced arrangement and an intelligent controller. The intelligent controller is composed of an amplifying circuit module, a filter circuit module, a hysteresis comparator circuit module and a microprocessor module which are in sequential connection. An output end of the microprocessor module is connected with a digital readout warning plate. The piezoelectric electricity self-generating unit comprises a plurality of piezoelectric transducers, a rectification filter circuit and a storage battery. The method comprises the steps: 1, storage and supply of piezoelectric self-generated electricity and electric energy; 2, real-time collection and processing of a signal; 3, processing and display of speed information; and 4, processing and display of distance information. The system is novel and reasonable in design, environment-friendly, economical, capable of guaranteeing safe and rapid travel of a vehicle and reducing occurrence of traffic accidents and convenient to popularize and use.

The invention relates to a pedestrian red light running integrated signal lamp device based on face recognition. The pedestrian red light running integrated signal lamp device comprises a video pedestrian red light running behavior and face recognition analysis subsystem, a pavement signal lamp and auxiliary motor vehicle signal lamp subsystem, an acousto-optical warning subsystem, a law breaking information exposure subsystem, an LED changeable-message sign subsystem, an advertising lamp box display subsystem and a third party face database. The pavement signal lamp and auxiliary motor vehicle signal lamp subsystem detects lamp color signals output by a crossing signal control machine, generates TTL level signals and transmits the TTL level signals to the video pedestrian red light running behavior and face recognition analysis subsystem, the acousto-optical warning subsystem and the LED changeable-message sign subsystem. The video pedestrian red light running behavior and face recognition analysis subsystem conducts face recognition on pedestrians, compares faces with the third party face database, and conducts intelligent analysis. The integrated design is adopted for the signal lamp device, functions are novel, integrity is high, pedestrian red light running behaviors can be effectively supervised, and a strong warning effect is achieved.

The invention discloses an early-warning device for road traffic conflicts, which comprises a passing vehicle detector, a staying vehicle detector, a pedestrian detector, a data receiving module, a main control module, a forward alarm, a backward alarm, a driving module, a data communications interface, a voice communications and broadcast module, and a power source. An LED array is installed inside the backward alarm, and a light source and a light-gathering part are installed inside the forward alarm. Output terminals of the passing vehicle detector, the staying vehicle detector and the pedestrian detector connect to the data receiving module; the output terminal of the data receiving module connects to the main control module; the main control module connects to the data communications interface; the other end of the data communication interface connects to the voice communications and broadcast module; and the output terminal of the main control module, via the driving circuit, connects to the forward alarm and backward alarm. The invention provides the multiple early-warning information preventing conflicts to the traffic participants in the region of low visibility and traffic blind spot with the advantages of a good effect in warning and a wide application.