154results about How to "Reduce dangerous accidents" patented technology

The invention discloses a GSM communication base station electromagnetic radiation prediction method. The method includes the followings steps that a transmitting power expression of a communication base station is obtained by calculating GSM communication base station pulse signal power spectral density; telephone traffic data of the communication base station are obtained to obtain telephone traffic data of different moments and a communication base station signal pulse flow density mean value; the communication base station signal pulse flow density mean value is put into the transmitting power expression, and transmitting power of the communication base station at different moments is solved; the obtained transmitting power is combined with an antenna gain direction picture, and equivalent transmitting power at different moments in different directions is obtained; the obtained equivalent transmitting power of the GSM communication base station is put into an Friis transmission equation, and accordingly the magnitude of electromagnetic radiation of different distances at different moments in different directions is obtained. According to the method, the GSM communication base station signal pulse flow density mean value and an antenna gain direction function are combined to be used in the communication base station electromagnetic radiation prediction method, and prediction accuracy of the electromagnetic radiation of the communication base station is improved.

The invention provides a power pipeline route inspection robot and belongs to the field of power engineering. The power pipeline route inspection robot comprises a snake head (1), a snake body (2) and a snake tail (3); the snake head (1) and the snake body (2) are modular in design; the snake head (1) is connected with the snake body (2) through two pins arranged on two sides of the snake body, modules are also connected through pins, the modules and the snake tail (3) are also connected through pins, the snake tail (3) is mainly powered by a steering engine rocking up and down to move, each part is provided with a backup battery, and battery life is longer. The power pipeline route inspection robot is compact in structure, small in size, light in weight, highly controllable, convenient to demount and safe and reliable and has flexible joints.

The invention discloses a security intelligent household door with an automatic induction alarming function. By arranging a wireless charging device, a storage battery in an intelligent door lock canbe charged through the wireless charging device, thus the storage battery is kept to always have the electric quantity, and the situation that the intelligent door lock cannot be used due to electricity shortage is avoided; then a temperature sensor and a smoke sensor are arranged on the back face of the door, thus the indoor temperature and smoke can be detected through the temperature sensor andthe smoke sensor; when a fire or gas leakage occurs indoors, the fire or gas leakage can be detected by the temperature sensor and the smoke sensor, information is transmitted to the intelligent doorlock, the intelligent door lock can be opened conveniently in time, and more serious accidents are avoided; then a crank sliding block mechanism is arranged, thus the intelligent door lock can controls work of an electric telescopic rod, the electric telescopic rod works to drive a sliding block to move, and the crank sliding block mechanism drives the door to be opened accordingly; and an alarmis arranged on the door, and thus nearby personnel are conveniently reminded to cope with an emergency in time.

The invention relates to a formula of gunpowder for a timing firing cable of a display shell. According to the invention, because in the formula provided by the invention, potassium perchlorate is used as a main component, thereby completely avoiding the use of a high-risk potassium nitrate product and effectively reducing the generation of risk accidents caused by a firing cable; barium nitrate in the components has combustion and speed regulation effects, so that the combustion speed of the firing cable meets the timing ignition requirement of the display shell, thereby effectively achieving the timing effect; and the combustion color of the firing cable is golden or silvery through using larch carbon powder, a yellow light agent or titanium sponge in the components.

The invention discloses a method for monitoring and protecting the combustion of gas turbine by adopting gas exhaust temperature dispersity, and relates to a protecting method for preventing a gas turbine from being damaged for combustion instability during the running process after being in an active service. The method comprises the following steps of: installing a plurality of temperature measuring thermocouples at the turbine air exhaust end of the gas turbine, and acquiring a gas exhaust temperature dispersity through temperature measuring thermocouple collecting signals by adopting a multi-dimensional space cosine law, thereby predicting the combustion stability of a combustion chamber indirectly; establishing the alarm logic and alarm exit logic of combustion monitoring and protection of the gas turbine according to the gas exhaust temperature dispersity; and establishing the dangerous tripping logic of combustion monitoring and protection of the gas turbine. Compared with the traditional method, the method for monitoring and protecting the combustion of gas turbine by adopting gas exhaust temperature dispersity provided by the invention is simple in design, is easy to expand, cannot increase the work load additionally because of the variation of the number of temperature measurement thermocouples, is also simple and convenient in calculation, and is high in real-time performance; and meanwhile the algorithm is high in anti-interference capability, and can effectively lower the influences to monitoring and protection effectiveness by working condition variation of noises and the gas turbine effectively.

The invention relates to a data acquisition and control platform, which belongs to the field of data management control. The platform provided by the invention comprises a field monitoring module, a data analysis module, a statement analysis module and a threshold value alarming module, wherein the field monitoring module monitors field equipment by utilizing a sensing monitoring device; the data analysis module performs analysis processing on detection data transmitted back by the sensing monitoring device; the statement analysis module generates a statement by the processed detection data, and displays the statement to a user; and the threshold value alarming module is used for monitoring the processed data, and prompting alarming for the data exceeding an alarming threshold value. The platform provides strict operation control, a networked database, diagnostic monitoring, reporting and automatic alarming, realizes the scientific, systematic and comprehensive monitoring of the equipment, enables the user to acquire comprehensive information about the running conditions of the equipment, assists enterprises in analyzing and controlling the state of the equipment, greatly improves the reliability of the equipment, greatly increases the utilization rate of the equipment, reduces the labor intensity of engineers, saves the production cost, improves the production efficiency and reduces dangerous occurrence.

The invention discloses an apparatus for acquiring the specific ground pressure of the crawler belt of a crane and the crane and relates to the technical field of engineering machinery. The invention overcomes the technical problem that bearing capability of a foundation is difficult to match with the specific ground pressure of the crawler belt of a crane in the prior art. The apparatus for acquiring the specific ground pressure of the crawler belt of the crane comprises a moment limiter, an angle sensor, a controller and a display, wherein the moment limiter and the angle sensor are in electric connection through a line or in wireless connection through a wireless transmitter-receiver unit, the moment limiter is used for detecting the weight value of a heavy object born by a main arm of the crane and the amplitude value of the heavy object, the controller is used for establishing a plane rectangular coordinate system with the revolution center of the main arm as the origin of coordinates, and the angle sensor is used for detecting the value of an operating angle of the main arm of the crane. The crane comprises the apparatus for acquiring the specific ground pressure of the crawler belt of the crane. The apparatus and the crane provided by the invention are used for improving matching between bearing capability of a foundation and the specific ground pressure of the crawler belt of the crane.

The invention discloses an automatic driving training method and device, equipment and a medium. The method comprises the steps that the traffic environment state at the current moment and corresponding structured noise are acquired; wherein the structured noise is determined based on historical data, the historical data is data stored in the process of pre-training the automatic driving vehicle,and the historical data comprises historical action information and historical traffic environment state information; then the corresponding execution action is determined by using the traffic environment state and the structured noise through a strategy network, and the automatic driving vehicle is controlled to execute the execution action; the strategy of the strategy network is evaluated through an evaluation network according to the execution action to obtain a corresponding return; the evaluation network parameters is updated through back propagation operation based on the return; and strategy network parameters are updated by using a strategy gradient algorithm. The stability of automatic driving training can be improved, so that the occurrence probability of dangerous accidents isreduced.

The invention provides a comprehensive data acquisition substation for an underground coal mine. The comprehensive data acquisition substation includes: a button module and an LCD display module for man-machine interaction; RS485 drive modules for data communication, CAN drive modules, a Zigbee module, an RFID module, a Wave Mesh module and Ethernet modules; a switch-in module and a switch-off module for being connected to an application system subset in an underground coal mine; an embedded system microprocessor for data processing and control for other modules; and a power supply module for providing a work power supply. The embedded system microprocessor is equipped with a built-in embedded operation system platform so that all application system functions for a current underground coal mine are combined as a whole function. The number of substations in the underground coal mine is greatly reduced, the complexity of mounting wiring is minimized, the workload for maintenance workers is reduced, the coal mine construction and operation costs are cut, and data acquisition in the underground coal mine can be truly achieved by one network and one station.

The invention discloses an unmanned inspection system applied to a fuel delivery system of a power plant. The unmanned inspection system comprises a fuel conveying belt, wherein a data acquisition terminal traveling rail is arranged above the fuel conveying belt, a data acquisition terminal is arranged on the data acquisition terminal traveling rail, wireless APs are arranged above the data acquisition terminal traveling rail at the spacing of a distance, the data acquisition terminal is in wireless connection with the wireless APs, the wireless APs are connected with a switch arranged in a monitoring cabin through a wired network, and the switch is connected with a monitoring host; a power supply for the data acquisition terminal is led from a power supply rail arranged in the data acquisition terminal traveling rail, and the data acquisition terminal is in sliding contact connection with the power supply rail through a current collector. According to the unmanned inspection system applied to the fuel delivery system of the power plant, the original on-site manual inspection is changed to be completed remotely by a central control room, so that dangerous accidents possibly caused by manual inspection are reduced, the labor intensity for workers is lowered, a working environment of a coal conveying system can be subjected to whole-course real-time monitoring, and thus the fault occurrence of the coal conveying system is prevented and reduced.

The invention provides a device and method for testing adsorption heat effect of adsorbent, relates to the technical field of environmental protection and energy conservation, in particular to a device and method for testing the heat effect generated when the adsorbent conducts adsorption. By means of the testing device and testing method, temperature field distribution and product concentration change situation at an outlet can be tested when the adsorbent conducts adsorption, the influence degree of loading and unloading quantity of the adsorbent, different types of the adsorbent, different gas flow and different environments where the adsorbent is located on the parameters can be further tested, and the influence factors are analyzed and evaluated; through heating, the ignition temperature point of the adsorbent can be directly tested, so that a theoretical basis and a test basis are provided for lowering dangers brought out by adsorbed heat of the adsorbent; besides, by means of the testing device and testing method, the adsorption property of the adsorbent can be also evaluated.

The invention discloses a campus floor intelligent protection system based on big data. The campus floor intelligent protection system comprises comprehensive feature identification equipment, physical action extraction equipment, fence stress detection equipment, danger mode analysis equipment, human body state detection equipment, a data processing center, a protection supporting mechanism and aprotective air cushion executing mechanism; the protection supporting mechanism comprises a middle protection device, a protective net and two side protection devices; the middle protection device comprises an extending frame, a U-shaped sliding plate, an electric telescopic rod and a positioning frame; and the side protection devices comprise positioning plates, sliding strips and transmission parts. According to the campus floor intelligent protection system based on the big data, by detecting behavior actions and facial expression of students at a fence and the thrust and pressure borne bythe fence, whether the behavior actions of the students are dangerous or not is judged, whether the students fall or not and falling positions are detected through the human body state detection equipment, the protection supporting mechanism or the protective air cushion executing mechanism is controlled to conduct protection, thus the safety of the falling students is ensured, and casualties arereduced.

The invention discloses a big data-based vehicle driving safety intelligent monitoring and early warning management system, which comprises: a vehicle driving parameter acquisition module, a vehicle tire pressure monitoring module, a database, a vehicle real-time load capacity detection module, a modeling analysis module, a remote server, an early warning module and a display terminal. According to the invention, the tire pressure and the real-time load capacity of the vehicle to be monitored are detected, wherein the tire comprehensive danger coefficient and the vehicle overload danger coefficient are counted in combination with the detection result, then the vehicle running comprehensive danger coefficient is obtained, early warning is conducted on the vehicle exceeding the preset value,and effective monitoring of the vehicle running safety is achieved. The method has the advantages of being high in intelligent degree and high in operation practicability, the obtained vehicle driving comprehensive danger coefficient can predict the dangerous situation of the vehicle in advance, passive dangerous driving of a driver is avoided, and the personal safety of the driver is guaranteedto the maximum extent.

The invention discloses a vehicle, an in-vehicle living body detection device and method and a storage medium, and the detection device comprises a radio frequency transmitting module which is used for transmitting a millimeter wave signal to the interior of a vehicle, a radio frequency receiving module used for receiving the millimeter wave signals reflected in the vehicle, a signal processing module used for processing the millimeter wave signals reflected in the vehicle so as to judge whether a living body target exists in the vehicle or not and generating an alarm strategy when the livingbody target exists in the vehicle, and an alarm module sending alarm information according to the alarm strategy. Therefore, the radio frequency transmitting module, the radio frequency receiving module, the information processing module and the alarm module are utilized to realize omnibearing dead-corner-free detection of living bodies in the vehicle, alarm information is sent out in time according to an alarm strategy, dangerous accidents are effectively reduced, the structure is simple, the cost is relatively low, and batch realization is facilitated.

The invention discloses an automatic feeding device which comprises a base, wherein a damping device is arranged at the lower end of the base, and a placing rack is arranged at the upper end of the base; a plurality of placing plates are arranged on the placing rack along a vertical direction at equal interval, and the lengths of the placing plates are decreased progressively in order from top to bottom; baffle plates are arranged at the two ends of each placing plate, and a sealing door is arranged on one side of the placing plate and is rotationally connected between the two baffle plates; a driving device is arranged on one side of one baffle plate, and an output shaft of the driving device penetrates through the baffle plate and is fixedly connected with one end of the sealing door. The automatic feeding device realizes automatic steel pipe transfer and transport through the combination of a pipe placing mechanism, a clamping device, a transfer device, etc., increases the storage capacity by the arrangement of the placing rack, can take materials as required, improves the production efficiency, reduces the cost, reduces dangerous accidents, and is suitable for popularization.

The invention provides a safety assessment system for outdoor sports. The safety assessment system comprises an outdoor environment data analysis unit, a crowd abnormal behavior detection unit, an exercise information acquisition unit, a safety level discrimination unit and an alarm monitoring unit. The outdoor environment data analysis unit is used for acquiring and analyzing outdoor sports environment data; the crowd abnormal behavior detection unit is used for detecting whether abnormal behaviors such as fighting and treading happen to students during physical exercises or not; the exerciseinformation acquisition unit is used for acquiring physical sign information and exercise state information when students do special outdoor physical exercises; the safety level judging unit is usedfor receiving the detection data and judging the safety level according to the detection data and set level parameter data; and the alarm monitoring unit is used for carrying out real-time monitoringmanagement and safety alarm on safety influence factors. According to the invention, the safety level of outdoor sports can be well evaluated, and dangerous accidents can be reduced.

The invention discloses a teaching multifunctional platform, comprising a platform body, a second protective plate and telescopic bars. The telescopic bars are embedded in support bars. The bottom endof each telescopic bar is provided with a first nonslip pad; the top end of each moving bar is provided with a roller; the bottom end of each moving bar is provided with a first massage bar; one sideof each first massage bar is provided with a second massage bar. The first massage bars and the second massage bars are provided, so that it is convenient for fix a book, the problem that a user manually picks a book to give a lesson is avoided, and hand sore is relieved for the user. A holding table is provided, so that working area of the platform body can be increased. The holding table allowsthe user to place teaching aids; after the holding table is used, the holding table is convenient to store.

Provided is a personnel flow monitoring unmanned aerial vehicle (UAV), which is controlled by an operator to monitor the personnel flow of a target place, and is characterized by comprising a UAV body which includes a casing, a signal receiver arranged in the casing, a control circuit, an infrared sensor installed on the casing and used for collecting infrared signals of the target place, a camera used for collecting image signals of the target place, and a signal emitter used for emitting the infrared signals and the image signals; a control part which includes a control part operation unit used for receiving operator control instructions, an instruction identification unit used for identifying and converting control instructions into digital signals, and a control part sending unit used for sending the digital signals into the signal receiver; and a display part which comprises an infrared imaging display unit used for receiving and displaying image signals and infrared signals emitted by the signal emitter. Through the infrared imaging display unit and the imaging technology thereof, the personnel flow monitoring UAV can objectively determine personnel intensive degrees, thereby guiding personnel and reducing accidents.

The invention discloses a full-automatic punching machine mold. The full-automatic punching machine mold comprises a punching mold body, a hydraulic cylinder and a lower mold plate; the punching moldbody is internally provided with a groove, the bottom end of the punching mold body is fixedly provided with an electric hydraulic push rod, a telescopic rod is embedded on the top end of a supportingrod, a spring is arranged in the supporting rod, an anti-sliding pad is fixedly arranged on the top end of the telescopic rod, the lower mold plate is arranged on the top end of the anti-sliding pad,and one end of the lower mold plate is fixedly provided with a movable rod. Through the electric hydraulic push rod, a user can adjust the height of the punching mold body conveniently, a worker canconveniently carry out operation, the spring and a telescopic rod are arranged, impact force of an upper mold plate and the lower mold plate after clamping can be relieved, the service life of the upper mold plate and the lower mold plate is prolonged, a first sleeve and the movable rod are arranged, the user can conveniently limit the lower mold plate, and the problem that due to position deviation of the lower mold plate, the machining quality is reduced is solved.

The invention discloses a water conservancy project dam body safety real-time monitoring and early warning management system based on big data analysis. The system comprises a dam body region divisionmodule, a region monitoring point arrangement module, a dam body parameter database, a seepage pressure monitoring module, an environmental parameter acquisition module, a displacement deformation monitoring module, a water level and water flow impact force monitoring module, a parameter processing center, an analysis server, an early warning module and a display terminal, a dam body is subjectedto region division and monitoring point arrangement to obtain the seepage pressure and environmental parameters of each monitoring point so as to count the danger coefficient of each sub-region, thereservoir water level and water flow impact force and the dam crest displacement deformation are monitored to obtain the monitoring result, and the comprehensive danger coefficient of the dam body iscounted by integrating the above, the safety monitoring of the hydraulic engineering dam is achieved, the monitoring accuracy is improved, the monitoring efficiency is improved, dangerous accidents ofthe dam are reduced, and then the safety of the dam is guaranteed.

The invention discloses an anti-theft door system convenient for fire rescue, and belongs to the field of anti-theft door systems. The anti-theft door system comprises an anti-theft door body, an intelligent door lock module, a fire rescue module, an alarm module and a power supply; the anti-theft system further comprises an intelligent door bell module, a display terminal, a wireless network anda sensor module; the intelligent door lock module, the alarm module, the intelligent door bell module, the display module and the sensor module are electrically connected with the power supply; and the intelligent door lock module comprises a fingerprint input module, a password input module and / or an opening / closing lock module. According to the anti-theft door system convenient for the fire rescue provided by the invention, the fire rescue module is arranged and matched with the sensor module and the alarm module to monitor indoor flames or fire sources, so as to timely give an alarm and open an anti-theft door, so that a user can quickly escape from a fire scene, and two power supply modes are provided to avoid the occurrence of an anti-theft door power-off phenomenon and ensure that the anti-theft door can continuously and stably serve the user.

The invention discloses an anti-swinging device for a lifting appliance for a bridge type crane. The anti-swinging device comprises a bridge which comprises a main beam, tracks are welded to the frontside face and the rear side face of the main beam correspondingly, and a sliding block is arranged below the main beam. A hydraulic rod is arranged at the right end of the sliding block, the slidingblock is clamped to the tracks, and three rolls are mounted on the inner wall of the sliding block. Grooves are formed in the three rolls correspondingly, steel wire ropes are arranged in the groovescorrespondingly, and rotary shafts are arranged in the centers of the three rolls correspondingly. One ends of the rotary shafts are connected with a motor through a belt, the motor is connected witha frequency changer, and the lower ends of the steel wire ropes are connected with a hanger. A consigning plate is arranged below the hanger, branched ropes are arranged at the four corners of the consigning plate, and one ends of the branched ropes are jointly connected with a hanging ring. The hanging ring is hung on the hanger, the function of material hanging can be achieved, shaking can be reduced in the use process, the stability of the lifting appliance for the bridge type crane is improved, the problems put forward by the background technology can be effectively solved, and the anti-swinging device is worth popularizing.

The invention relates to a structure for connecting a suspender for a ceiling fan with a motor shaft. The structure comprises the motor shaft and a suspender shaft sleeve. The structure is characterized by also comprising a shaft sleeve and at least two groups of fixing piece, wherein the shaft sleeve is arranged on the motor shaft, the suspender shaft sleeve is arranged on the shaft sleeve, and one end of each fixing piece passes through the suspender shaft sleeve, the shaft sleeve and the motor shaft to fix the suspender shaft sleeve, the shaft sleeve and the motor shaft. According to the structure disclosed by the invention, the service life of a motor is prolonged, and possibility of dangerous accidents is reduced.

The invention relates to a corner connecting assembly for a deckhead, which is mainly applied to a joint of a deckhead and a wall space. The corner connecting assembly is characterized by comprising a decoration strip (1), a decoration strip corner member (2) and a connecting member (3), wherein an inner flanging I (1.1) and an outer flanging I (1.2) are arranged on the decoration strip (1); a groove I (1.1.1) is arranged at the top of the inner flanging I (1.1); an inner flanging II (2.3) and an outer flanging II (2.4) are arranged on the decoration strip corner member (2); a groove II (2.3.1) is arranged at the top of the inner flanging II (2.3); and the bottom surface (3.1) of the connecting member (3) is clamped in the inner flanging I (1.1) and the inner flanging II (2.3). The cornerconnecting assembly for the deckhead has the advantages of convenience for piecing together, avoidance of on-site chamfering, high safety property, anticorrosive function and difficult loosening.

The invention discloses a construction method for excavating and supporting of an arch of a subway station. The construction method comprises the following steps of advanced geological forecast; construction of a large pipe shed at a horsehead arch; pilot tunnel construction; construction of middle piles and side piles; performing of advanced small guide pipe grouting on an arch part of a horsehead; breaking and removing of the horsehead arch; excavating and supporting of the arch; and construction of a plug wall. According to the construction method, the prediction procedure of advanced geological forecast is adopted, so that dangerous accidents are greatly reduced; according to the method, after the two side pilot tunnels communicate with the middle pilot tunnel, side pile construction is conducted in the two side pilot tunnels, middle column construction is conducted in the middle pilot tunnel, and a foundation is laid for stable arch construction; and according to the method, the processes of excavating and supporting of the arch are improved, the firmness of the arch of the subway station is greatly improved, and the dangers of underground excavation collapse, mud burst and water burst, underground pipeline damage, surrounding building settlement cracking and road settlement or collapse are avoided.

The invention discloses a liquid dripping speed regulator for a pediatric department. The liquid dripping speed regulator for the pediatric department comprises a first box, wherein an infusion tube is arranged in the cavity of the first box; a speed regulating wheel is arranged in the cavity of the first box; the top of the first box is movably connected with a box cover through a movable shaft;the right side of the box cover is fixedly connected with a fixing plate; the left side of the fixing plate is fixedly connected with a second box; a pull rod is arranged in the cavity of the second box; a spring sleeves the surface of the pull rod; the right end of the pull rod is fixedly connected with a baffle; and the right side of the baffle is fixedly connected with a prism. By arrangement of the first box, a chute, a limiting groove, the infusion tube, the speed regulating wheel, the box cover, the fixing plate, the second box and the prism, the dripping speed regulator has the advantage that the speed regulating wheel is protected; the probability of dangerous accidents is reduced; and meanwhile, the problem that a traditional dripping speed regulator cannot protect the speed regulating wheel is solved.

The invention relates to a subsectional control device for drilling fluid density. The subsectional control device comprises a joint body and a plurality of hollow balls with density lower than the drilling fluid density. The joint body is provided with a central hole running through axially; the central hole consists of an equal-diameter straight hole and a taper hole which are communicated witheach other, and the side wall of the joint body is provided with drain holes. A guide impeller cylinder is arranged in the equal-diameter straight hole, a plurality of vanes are arranged in the guideimpeller cylinder, a backflow via hole is formed in the guide impeller cylinder, a drain tube is fixedly arranged at the top of the guide impeller cylinder, the top of the drain pipe is communicated with the drain holes through transitional pipes, an overflow pipe extending downwards is fixedly arranged at the bottom of the guide impeller cylinder, and an inner cavity of the overflow pipe is communicated with the bottom of the backflow via hole hermetically. With application of the subsectional control device, variable-gradient drilling in deep water can be realized, and problems of excessivelayering in the process of running casings during single-gradient drilling, needing large-size equipment during double-gradient drilling and the narrow window of density in deep water drilling are allsolved while drilling cost is reduced.

The embodiment of the invention provides a vehicle intelligent control device and method and a computer readable storage medium. A camera is used for acquiring a real-time video of a driver; a vital sign detection module is used for detecting vital signs of the driver in a non-contact mode; a voice interaction module is used for sending prompt voice to the driver when the driver is detected to be abnormal or the vital signs are determined to be in an abnormal state from the real-time video, and generating a driving stopping instruction when response cannot be obtained from the driver within preset time; and a parking module is used for stopping the vehicle based on the driving stopping instruction. A safety barrier for vehicle driving is increased, and dangerous accidents are reduced.