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

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 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 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 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 belongs to the technical field of bridge construction and in particular to a prompt device for the bridge construction. The technical problem needing to be solved by the invention is to provide the prompt device, which is capable of attracting the attention of pedestrians on a notice sign, reducing the occurrence of dangerous accidents and reducing economic losses, for the bridge construction. In order to solve the technical problem, the invention provides the prompt device for the bridge construction. The prompt device comprises a box body and so forth, wherein a driving device is arranged at the right side of the box body; the prompt device is arranged inside the box body; prompt components of the prompt device are arranged above the box body; and an opening is arranged at the middle of the right side of the box body. The prompt device for the bridge construction achieves the effect of attracting the attention of the pedestrians on the notice sign, reducing the occurrence of the dangerous accidents and reducing the economic losses.

The invention discloses a high stability express placement device comprising a placement shelf body. The high stability express placement device is characterized in that a collection box is in slidingconnection inside the placement shelf body; an anti-skid device is fixedly mounted at the bottom of the placement shelf body; a circular groove is opened at the bottom of a placement shelf; a clamping device is embedded and mounted inside the circular groove; a separation device is disposed inside the collection box. The high stability express placement device has the advantages of not only facilitating quick fixing and disassembly of the placement shelf body for users but also being convenient for the users to adjust the height of the placement shelf with the arrangement of the clamping device, not only increasing the space for the placement shelf body but also enabling classification and placement of express with the separation device and the collection box used in combination, being easy for users to identify and pick up, increasing the stability and safety of the placement shelf body when placed with the arrangement of the anti-skid device, and preventing the users from causing certain shaking on the placement shelf body when the express is taken.

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 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.