82 results about "Hazard monitoring" patented technology

The invention discloses a landslide hazard multi-stage comprehensive monitoring and early warning method, and relates to a landslide monitoring and early warning method. The method includes the steps of establishing a four-stage comprehensive early warning model based on three early warning indexes according to the topographic and geological conditions of typical landslide hazards, determining a model parameter type and an early warning critical value index through the indoor and outdoor typical rainfall landslide model experimenting method, carrying out statistic analysis of the correlation between typical landslide hazards and rainfall capacity, and establishing a mathematical calculation method suitable for typical landslide hazard early warning. Through the combination with specific monitoring data, monitoring information is fed back in time, multi-hydrologic-year detection and correction are conducted on a hazard early warning mathematical model, and then the landslide hazard multi-stage comprehensive monitoring and early warning method is obtained. A visual critical value domain discrimination graph, an analysis curve and an early warning standard introduction are given. By means of the method, the quality and effect of rainfall landslide monitoring and early warning are improved, and a scientific theory and a technological method are provided for improving the accuracy in geological hazard monitoring and early warning.

The invention belongs to the slope stability estimation and landslide hazard monitoring and early warning technologies. A landslide forecasting method capable of utilizing underground water levels and displacement real-time monitoring includes the following steps: (1) landslide preliminary reconnaissance and monitoring point selection; (2) monitoring arrangement and installation of equipment; (3) monitoring the landslide displacement and the underground water levels in real time and processing real-time monitoring data; (4) statistical analysis period by unit and confirming mean-value underground water level HO and a displacement speed VO; (5) confirming underground water level loading and unloading parameters and loading and unloading quantities; (6) confirming displacement speed response parameters and displacement response quantities; (7) confirming the landslide displacement speed and underground water level loading and unloading response ratio parameters and numbers; (8) applying the underground water levels and displacement speed loading and unloading response ratio to carrying out evaluating slope stability and monitoring and early warning. According to the landslide forecasting method capable of utilizing the underground water levels and the displacement real-time monitoring, produced erroneous judgement or mistake judgement that landslide physics mechanical parameters, boundary conditions and the like can not be confirmed difficultly and accurately by the transitional ultimate equilibrium mechanics appraisal method can be overcome effectively.

The invention discloses a dense roadway group rock burst hazard prediction method. The method includes the following steps: first acquiring the dynamic sensitive area of a coal bed in a dense roadway group area; then mounting roof dynamics monitors along a direction leading to a dense roadway group to carry out roof dynamics observation; before a dynamic area stress range related to coal mining gets close to the dense roadway group, mounting highly sensitive stressmeters in the sensitive area to observe stress change, and when the stress increment is abruptly changed, carrying out rock burst hazard monitoring. By means of an artificial blasting technique in the dense roadway group, the method acquires the coal-rock stratum disturbance-sensitive area, finding a vulnerable area; the roof dynamics method is adopted to acquire the tendency characteristics and range of dynamic stress and quantitatively describe the distribution rule of the dynamic stress; delicate physical quantity observation timely judges the early disturbance response of the dense roadway group, rock burst hazard process monitoring is carried out before high energy is released, and the hazard level is judged by means of indexes.

The invention discloses a full-process three-dimensional dynamic safety management method of a building enterprise. According to the method, a bidirectional closed-loop operation mode is utilized. Through performing classification and identification processing on engineering projects which enter a safety risk evaluation database, an engineering project safety evaluation report is generated. An engineering project three-dimensional dynamic safety hazard monitoring model is established in a second-level enterprise layer and potential hazard early-warning information is issued. Real-time monitoring for sensor and video, and artificial regular checking and modification are performed at a project part. A safety accident is handled immediately. The three-dimensional dynamic safety hazard monitoring model is instantly updated. After the engineering project is finished, updating learning is performed on a safety risk evaluation database. According to the full-process three-dimensional dynamic safety management method, learning and reutilization are performed on safety management historical data of the building enterprise. Advanced forecasting, early warning and prevention are performed on the potential safety hazard. The safety event is reasonably handled immediately after occurrence. Safety of persons, fund and property in the engineering project of the building enterprise can be effectively ensured. Furthermore loss is reduced.

The invention discloses a non-contact landslide hazard monitoring system, which comprises a laser radar scanner, a video check device and a monitoring center processing platform, wherein the laser radar scanner, the video check device and the monitoring center processing platform are connected with a monitoring processing host. The laser radar scanner is used for obtaining distance data of distance from each point in a landslide monitoring region to the laser radar scanner; the monitoring processing host is used for receiving the distance data collected by the laser radar scanner, obtaining an over-limit detection result and sending the over-limit detection result to the monitoring center processing platform; and when the monitoring center processing platform judges that the over-limit detection result surpasses the data threshold, the monitoring processing host triggers the video check device to collect videos to carry out recheck. The non-contact landslide hazard monitoring system monitors the whole landslide monitoring region by utilizing the three-dimensional scanning technique, so that the landslide geological disaster can be monitored accurately; and through linkage with the video check device, the monitoring system realizes an early warning-alarm-check processing mechanism. The invention also discloses a corresponding monitoring method.

The invention discloses a landslide hazard monitoring system and method. The system comprises a data monitoring equipment module. The data monitoring equipment module is connected with a data transmission module; the data transmission module is connected with a data reception module; and the data transmission module and the data monitoring equipment module are connected with a power supply module for supplying power therefor. The data monitoring equipment module comprises a rainfall monitor for monitoring rainfall, a volumetric water content monitor for monitoring landslide soil body volumetric water content, and a GPS device for monitoring landslide surface displacement. The landslide hazard monitoring system and method can judge possible spatial form and development tendency of a side slope, capture feature information of slope disaster in time and predict slope instability damage time and range in time by monitoring the landslide surface displacement, the rainfall intensity and the soil body volumetric water content in real time, and summarizing response of the soil body volumetric water content to the rainfall and deformation features of the side slope.

The invention discloses landslide hazard monitoring and protection equipment which comprises laser sensing equipment, rainfall monitoring equipment as well as infrared sensing equipment, sound monitoring equipment, camera equipment, a fixing column, a protection cover, a telescopic protection platform and a control processor, wherein the laser sensing equipment comprises a first laser emitter device and a second laser receiving device; the laser sensing equipment is connected with the control processor; the infrared sensing equipment is connected with the control processor; the rainfall monitoring equipment is used for monitoring current rainfall quantity, and used for converting the current rainfall quantity into a current rainfall vector which is output to the control processor; the sound monitoring equipment is arranged at a slope; the sound monitoring equipment is connected with the control processor; the camera equipment is used for taking videos of the slope; the camera equipment is connected with the control processor; the fixing column is arranged at the bottom of the slope; the protection cover is connected with the fixing cover; the telescopic protection platform is connected with the control processor.

The invention discloses a fire hazard monitoring and positioning device and a fire hazard monitoring and positioning method, and belongs to the field of embedded computers. The device comprises a camera support, a hardware circuit and the fire hazard monitoring method. Two cameras with infrared lenses are disposed in a spatial level way and fixed on the two ends of a metallic rod, and central distance of the lenses of the two camera ranges from 80 to 120cm to form the camera support. The hardware circuit takes a digital video media processor as a core, and comprises a video signal acquisition circuit, a smog concentration acquisition and processing circuit and a network communication circuit. The fire hazard monitoring method comprises two parts, wherein the smog concentration monitoring involves periodically acquiring and processing voltage and uploading the concentration information to a server for achieving, and flame identification and positioning involves determining occurrence of fire hazard through a flame identification algorithm and further calculating the fire starting position according to the space structure of the cameras. The device and method disclosed in the invention are of great importance to the fields including smog concentration monitoring, fire hazard alarm and subsequent fire hazard situation analysis.

The invention relates to a rain-induced landslide critical start-up rainfall and instability early-warning time determination method, which comprises the following steps: Step 1, determination of physical and mechanical property parameters of a slope and slope angle and slope vertical depth; Step 2, monitoring of landslide slope rainfall and monitoring data processing; Step 3, determination of landslide start-up groundwater level critical depth value; Step 4, determination of landslide start-up effective rainfall threshold; Step 5, determination of real-time critical start-up rainfall of the slope; Step 6, slope stability analysis and evaluation; and Step 7, determination of slope instability early-warning time. The invention creatively puts forward a landslide stability real-time start-up rainfall determination and slope stability evaluation method based on a limit equilibrium method and with the combination of real-time rainfall monitoring. By real-time monitoring of rainfall, slope critical start-up rainfall can be detected and determined. The method has important application prospect and value in landslide hazard monitoring early-warning and stability evaluation.

The invention discloses an experiment device for ground subsidence induced by underground water leakage and a use method of the experiment device, and belongs to the technical field of geological hazard monitoring and warning. The experiment device comprises a soil tank, a water tank located below the soil tank and a collapse cylinder for connecting the water tank with the soil tank, wherein the upper end of the collapse cylinder extends into the soil tank, so that an inner cavity of the collapse cylinder is communicated with an inner cavity of the soil tank, a soil filter screen is arranged at one end, stretching into the soil tank, of the collapse cylinder, the lower end of the collapse cylinder stretches into the water tank to enable the inner cavity of the collapse cylinder to be communicated with an inner cavity of the water tank, and a negative pressure test sensor for testing pressure of the inner cavity of the collapse cylinder is arranged at one end, stretching into the water tank, of the collapse cylinder; a valve is arranged on the side wall of the water tank, and a water pump is connected with the side wall of the water tank to be used for testing water pressure in the water tank; a ground subsidence monitor for monitoring ground subsidence is mounted in the soil tank. The experiment device provides a scientific basis for effectively monitoring ground subsidence disaster and optimizing underground construction plans.

The invention discloses a calibration device of an oil gas concentration detector. The calibration device of the oil gas concentration detector comprises a portable case body, a liquid crystal display, a standard cylinder, a special calibration interface of the detector, and a functional device. The portable case body, the standard cylinder, a gas tank, a pipeline system, an ARM single chip control and circuit, the liquid crystal display and the special interface of the oil gas concentration detector are arranged, so that a combustible gas alarm is detected, the use safety of the combustible gas alarm is improved, and the blank that a portable device for calibrating an oil gas multicomponent hazard monitoring system of an oil house is not found at present is made up. The calibration device has the advantages of being simple in structure and convenient to operate, and the safety of human bodies, goods and materials is preferably guaranteed.

The invention discloses a power utilization potential safety hazard monitoring service system based on a cloud platform. The power utilization potential safety hazard monitoring service system comprises a front-end data acquisition module, an electrical safety monitoring module, a data transmission module, a data supervision center and a line disconnection module. According to the application, thefront-end data acquisition module is matched with the electrical safety monitoring module, the data transmission module and the data supervision center; in combination with technologies of a cloud platform, big data, cloud computing and the like, uninterrupted monitoring of power utilization safety data of a user is realized; the abnormal state of the user electrical system is automatically captured; electrical fire hazard automatic alarm is realized; then, the whole user power utilization system is cut off through the line disconnection module. Therefore, the damage degree of each electricalcomponent can be reduced, the possibility of electrical fire can be reduced to the maximum extent, the purpose of unified and efficient supervision is achieved, the effective supervision level of electrical fire safety control can be greatly improved, and casualties and serious property loss are avoided.

The invention discloses a power transmission corridor vegetation threat early warning method based on satellite remote sensing. The method comprises the steps of performing weighted gray scale transformation on the image by means of processed satellite remote sensing data; on the basis of a low-resolution multispectral image, successfully extracting a tower and a power transmission line by adopting a binarization algorithm and a Canny edge detection algorithm; based on the high-resolution fusion spectral image, establishing a spectrum library by means of a supervised classification algorithm,performing type identification on vegetation, finally, calculating a ground vegetation coverage index, reconstructing a power transmission corridor, and realizing vegetation threat early warning according to the vegetation coverage index of the ground in a vegetation and line intersection area. According to the method, the information of the power transmission corridor is successfully extracted byutilizing satellite remote sensing data with relatively high precision, so that the problems of high difficulty in manual inspection, difficulty in vegetation hazard monitoring and the like are solved, and a new method is provided for wide-area and large-range rapid inspection of power transmission line vegetation threats.

The invention relates to a network-type collapse disaster monitoring and early warning system, which includes four components: a measurement unit, a control unit, a power unit, and a user unit. The acquisition module in the control unit receives sound related to slope collapse and deformation monitored by the measurement unit. The force data is transmitted to the user unit through the data transmission module. At the same time, the early warning threshold can also be set in the control unit. When the alarm condition is met, the alarm information is directly sent to the user unit to realize real-time monitoring and early warning. The invention has a simple structure, all parts used are commonly used electronic components, has low cost and high efficiency, and can be widely used in monitoring geological disasters of side slope collapse.

The invention provides a limited duration fire hazard monitoring device and method based on a short message service of a Beidou satellite positioning system and relates to the field of wireless communication and signal detection. The limited duration fire hazard monitoring device and method aim at solving the problem that under the circumstance that mountain patrollers leave after using fire, the place where fire is used has a reignition hazard and is difficult to monitor. Infrared monitoring equipment is used for monitoring the environment around a monitoring point, once a fire behavior is found, the monitoring point is positioned through the Beidou satellite positioning system, and meanwhile position information is reported to a monitoring center and nearby mountain patrollers in a short message mode or a short wave mode or the like. The limited duration fire hazard monitoring device and method effectively solve the problem that effective latter hazard monitoring is difficult after fire is used in a forested area. The limited duration fire hazard monitoring device and method are suitable for conducting fire monitoring and fire point positioning on areas where the occurrence rate of fires is high.

The invention discloses a cable-free independent long-term working landslide hazard monitoring early warning method and system. The cable-free independent long-term working landslide hazard landslide hazard monitoring early warning method reasonably arranges rock soil wireless sensing sensors on a surface layer and a deep layer of a landslide slop, wherein, preferably, the rock soil deformation wireless sensing sensor is self-powered with low power consumption, performs wireless communication with a monitoring base station, does not need power supply and a communication cable, and does not need extra protection after installation. Furthermore, the rock soil deformation wireless sensing sensor is small in volume, simple in installation and low in cost, can independently work for at least 5 years, and thoroughly solves a difficulty that a cable of a monitoring system is easy to damage. When the landslide slope is deformed, the cable-free independent long-term working landslide hazard monitoring early warning method realizes real-time and effective monitoring on landslide slope integral deformation and local deformation like collapse, sliding, and the like according to deformation magnitude and corresponding positions which are obtained by the rock soil deformation wireless sensing sensor; when the deformation magnitude exceeds a preset value, a device installed near the landslide slope alarms, so that people on the periphery is timely and quickly evacuated to a safe area and the risks of the landslide hazard are reduced and eliminated to the greatest extent.

The invention creatively provides a landslide hazard monitoring device, which comprises a power supply module, a monitoring module, a communication module and a processor; the power supply module comprises a solar panel, a voltage-stabilizing device, a storage battery and a voltage conversion device, wherein the voltage-stabilizing device is connected with the solar panel; the storage battery is connected with the voltage-stabilizing device; the voltage conversion device is connected with the storage battery; the communication module comprises GPRS/GSM (General Packet Radio Service/Global System for Mobile) equipment and a GPS ((Global Position System) satellite/ Beidou satellite; the GPRS/GSM equipment is connected with the voltage conversion device and the processor; and the monitoring module is respectively connected with the voltage conversion device and the processor. The landslide hazard monitoring device disclosed by the invention has high-precision data acquisition and storage functions and is capable of monitoring landslide hazards by carrying out data transmission through the GPRS/GSM equipment, the satellite and the like.

The invention discloses a mine hazard monitoring and prewarning system and method. The system main comprises a server, a data transmission system, a contact wearable terminal, an electronic fence, a transmission equipment controller, a video acquiring terminal and an environment monitoring terminal. The server takes charge of real-time storage and comprehensive analysis of data acquired by the contact wearable terminal, the electronic fence, the transmission equipment controller and the video acquiring terminal; and when the monitored data meets prewarning set conditions, prewarning instructions are generated and sent to appointed wearers, and specific prewarning judgment methods are provided. The system can automatically perform comprehensive monitoring and prewarning on personal physicalsign information, walking trajectories, area environment parameters and transmission equipment states, and can perform automatic planning and broadcasting of disaster avoiding circuits when disastersare going to occur, so that mine hazards are greatly reduced, and the self-rescue capacity is improved.

The invention discloses a bridge hanging basket construction potential safety hazard monitoring system, which is applied to hanging basket equipment. The system comprises a sensing module, an action module, an alarm, a PLC electrical control module, a serial port server module, a switch, a router and a local handheld terminal; the sensing module, the action module and the alarm are electrically connected with the PLC electrical control module; the PLC electrical control module is further connected with a remote serial port module; the serial port server module is connected to the switch; the switch is connected to the router; and the local handheld terminal is connected with the router in a local area network. Each parameter value in a construction process of the hanging basket equipment is detected through the sensing module; and the PLC electrical control module is used for sending alarm information after each parameter value is compared with a preset value on one hand, and performing visual display at the local handheld terminal through the local area network and sending out a control command to carry out safety protection on the other hand, so that the monitoring of potential safety hazards of hanging basket construction is realized.

The invention provides an earthquake landslide hazard monitoring device. The device comprises sensors, first wireless transmission devices and a data center, wherein the sensors are divided into a plurality of groups corresponding to the first wireless transmission devices; each first wireless transmission device is provided with a first storage battery which supplies power to the first wireless transmission device as well as supplies power to the sensor through a cable; each sensor is provided with a second storage battery which only supplies power to the sensors when the voltage provided by the cable is zero. According to the earthquake landslide hazard monitoring device, a low-cost and simple scheme is adopted to ensure that the sensors can independently work, and the continuous monitoring for a long time is provided; in addition, the monitoring signals of each sensor can be transmitted; therefore, the distribution range is expanded, and the monitoring and early warning range is wide.

The invention discloses a rainfall-type geological hazard warning and prediction model based on RBFN machine learning and a learning method thereof, belonging to a geological hazard monitoring technology. The model comprises an input layer, a hidden layer and an output layer. The input layer is a vector X=(x1,x2), wherein x1 is soil raining amount indix and x2 is hour raining amount. The output layer is a scalar RBFN value; The hidden layer is composed of m radial basis functions. The unit of operation of an array composed of hidden layers is the node of the hidden layers, which contains a central vector c and has the same dimension as the parameter vector x of the input layer. With taking rainfall as the main inducement of disasters, rainfall and actual disasters as a priori events, a rainfall-type geological hazard early warning and prediction model is established. The RBFN model is used to classify the early warning units by introducing soil rainfall index and machine learning algorithm into dimensionless soft thresholds, which avoids the drawbacks of subjective and statistical methods in the past.

The invention discloses a liquid ammonia equipment monitoring system used for safety production accident potential safety hazard monitoring. The system comprises sensor groups and video monitoring instruments which are arranged in each company, each liquid ammonia storage barrel corresponds to a sensor group, each sensor group comprises a pressure sensor, a concentration sensor and a liquid levelsensor which are used for monitoring pressure in the barrel, the ammonia concentration at a storage position and the height of liquid in the barrel, and the video monitoring instruments are installedat the places where the liquid ammonia storage barrels are located to collect video data of the liquid ammonia storage barrels; each company is provided with a video monitoring gateway and a sensor gateway to transmit data collected by the sensor groups and the video monitoring instruments to a remote server; the data is analyzed and manged by the remote server; a liquid ammonia monitoring terminal is provided with a related company distribution query function, a related company information query function, a related company network connecting query function, a data monitoring function and an on-site monitoring function. The system has the advantages that the state of the liquid ammonia storage barrels can be monitored in real time, the operation manner is simple, and the data is real and reliable.

The invention provides a method for testing a hazard detector that includes transmitting a test mode switching signal from a test device to the hazard detector, setting the hazard detector to a test mode, transmitting a first test mode confirmation signal from the hazard detector to a central monitoring unit, transmitting a second test mode confirmation signal from the hazard detector to the test device, processing a hazard condition detected by the hazard detector as a test event, transmitting a test result signal from the hazard detector to the central monitoring unit, the hazard detector outputting a test completion signal, and setting the hazard detector to a detection mode. The invention further provides a hazard monitoring system, a hazard detector, and a test device.

The invention provides a vehicle collision potential hazard monitoring method based on the Internet of Vehicles and an Internet of Vehicles system. The method comprises the steps that a sensor networkcommunication server sends basic information, speed information and position information of vehicles to a management server; the management server sends the acquired information to a service server;the service server calculates whether or not collision potential hazards exist according to the received information of the multiple vehicles; and when the collision potential hazards exist, the service server sends collision potential hazard information to prearranged user terminal equipment. The collision potential hazard information is sent to the prearranged user terminal equipment to monitorthe potential safety hazards encountered in the vehicle driving process and driving operations conducted for the potential safety hazards, therefore, the vehicles and the overall driving behaviors ofthe drivers can be monitored, and the safety levels of the vehicles and the driving behaviors of the drivers can be evaluated.