132results about How to "Concentration real-time monitoring" patented technology

The invention relates to an emergency interlocking monitoring system and a method thereof for a dangerous chemicals leakage accident, which belong to the technical field of the dangerous chemicals accident emergency rescue. The emergency interlocking monitoring system comprises an explosion-proof wireless gas concentration monitoring subsystem and an explosion-proof individual wireless video transmission subsystem arranged around the site where the leakage accident occurs; an emergency command host computer arranged at a site emergency command center, a video server and a wireless receiving module. The method mainly comprises the steps that wind direction, speed, concentration of leaked gas and video pictures on the site of each monitoring point are collected in real time, and the emergency command host computer receives and displays information, and provides site emergency treatment measures; the accident casualty radius is calculated according to aftermath, and the evacuation region of the people is determined; emergency rescue force and rescue facilities around the accident site are displayed on a GIS system, and the optimum evacuation path for the people is searched and displayed on an electronic map. The emergency interlocking monitoring system and the method can reduce the accident damage, and better guarantee the life safety and the property security of the people.

The invention relates to a hydrogen management system of a vehicle-mounted fuel cell. The hydrogen management system comprises a hydrogen control unit (15), and a hydrogen bottle electromagnetic valve (4), a hydrogen bottle pressure sensor (2), a temperature sensor (5) and a hydrogen concentration sensor (16) which are connected with the hydrogen control unit (15) separately; the hydrogen bottle electromagnetic valve (4), the hydrogen bottle pressure sensor (2) and the temperature sensor (5) are connected with a vehicle-mounted high-pressure hydrogen bottle (1) separately; a probe of the hydrogen concentration sensor (16) is arranged in the environment above the high-pressure hydrogen bottle (1); and the hydrogen control unit (15) is in communication connection with a vehicle-mounted fuel cell controller through CAN. Compared with the prior art, the functions of hydrogen adding control, hydrogen supplying control, safety detection and the like of a vehicle-mounted hydrogen storage system can be realized, cable connection between systems is reduced, and signal missing in a signal transmission process and risk of high probability of interference are lowered.

The invention discloses a combustion gas leakage alarm control system comprising a central controller, a gas leakage monitoring mechanism disposed on a combustion gas pipeline, and a detection mechanism disposed on a combustion gas appliance. The gas leakage monitoring mechanism and the detection mechanism are connected with the central controller. The central controller is provided with an emergency protection mechanism and an alarm mechanism. The combustion gas leakage alarm control system ensures combustion gas safety by multiple protections, prevents living property losses caused by manual factors, combustion gas leakage, or aged pipelines, and is simple in structure, high in intellectualized degree, and worth applying and generalizing.

The invention discloses a simultaneous desulfation, denitration and mercury removal device, relating to mercury removal devices for flue gases of coal-fired power plants. The device is provided with a simulated flue gas generating unit, a plasma oxidation unit, an activated carbon adsorption unit and a flue gas ingredient detection unit, wherein pipes of the simulated flue gas generating unit, the plasma oxidation unit, the activated carbon adsorption unit and the flue gas ingredient detection unit are connected through rotary valves and Y-shaped three-way joints; the simulated flue gas generating unit is provided with a N2 cylinder, a CO2 cylinder, a SO2 cylinder, an O2 cylinder, a NO2 cylinder, a HCl cylinder, a NO cylinder, a mass flow controller, a Hg0 permeation tube and a thermostatic water bath; a gas washing bottle is arranged in the thermostatic water bath; the plasma oxidation unit is provided with a high-voltage power supply and a plasma reactor; the plasma reactor is provided with a quartz dual-dielectric layer; the activated carbon adsorption unit is provided with a thermostatic baking box and an adsorption reactor; and the detection unit is provided with a flue gas analysis unit and a Hg0 analysis unit.

The invention discloses an intelligent water quality monitor combining an ultraviolet method and a fluorescence method and a usage method thereof, and belongs to the field of environment monitoring and water treatment. The intelligent water quality monitor comprises an optical path part, a detection part and a calibration part, and a constant current source circuit is connected with a deep-ultraviolet LED circuit; a linear stepping motor is provided with a drive rod, the drive rod is provided with a fixing frame, and two fluorescence filters are arranged in the fixing frame; the constant current source circuit, the linear stepping motor and an amplifying circuit are all connected with a micro processor, a processed signal is transmitted to a memorizer, a liquid crystal display and a ZIGBEE module by the micro processor, and the ZIGBEE module is connected with an upper computer PC; a pipeline, communicated with a cuvette, of a calibration pool is provided with a minitype electromagnetic valve II, the minitype electromagnetic valve II and a minitype electromagnetic valve III are both connected with the micro processor, and the lower side of the calibration pool is provided with the minitype electromagnetic valve III. According to the intelligent water quality monitor, on-line monitoring on protein and humic substances in water can be achieved.

The remote real-time production safety monitoring system includes computerized LAN, data base server, communication server, router, two monitoring computers with large screen projector, production safety information acquiring and remote radio transmitting device, etc. The safety monitoring center collects the safety information of the administrated coal mines via the communication server, router and the production safety information acquiring and remote radio transmitting device; the LAN connects the said parts together and the data package is transmitted among the connected parts in the rate of 10-100 Mbps. The present invention has the advantages of real-time collection of gas and other safety data to reflect the true production state of coal mine, advanced radio communication mode, fast speed, low investment, high reliability, etc.

The invention discloses a water channel urine protein optical label-free specific detection device and method. The device includes optical fiber engraved with tilted fiber grating, a sulfhydryl compound and an AQP2 antibody; the side and the end face of the optical fiber are respectively plated with a layer of metal film with different thicknesses to form an optical fiber sensing probe; the sulfhydryl compound self-assembles into a monomolecular film on the metal film of the optical fiber side, and the AQP2 antibody is fixed on the monomolecular film surface through a catalyst; after fixation of the AQP2 antibody, the optical fiber sensing probe is immersed into a urine stock solution containing AQP2 antigen, and polarized light is input into optical fiber, the characteristic that the metal film surface plasma resonance wave of the optical fiber side is sensitive to the external environment change is utilized to detect the specific binding of AQP2 antigen and AQP2 antibody. The device and the method provided by the invention can realize specific detection of water channel urine protein, replace wavelength demodulation technique with amplitude modulation technique, the detection process is free of label to a detection sample, and also has the advantages of simplicity and speediness, etc.

The invention relates to a safety protection control method for degrading organic waste gas through low-temperature plasma. The method mainly solves the problem that the safety coefficient is low in the prior art. According to the safety protection control method for degrading the organic waste gas through the low-temperature plasma, an online total hydrocarbon analyzer is arranged on an organic waste gas inlet pipeline of the low-temperature plasma and used for monitoring the concentration of the organic waste gas in an inlet of plasma equipment in real time, monitored data are sent to a control system, a safety concentration upper limit and concentration safety time are set through a touch screen module and transmitted to the control system, the control system compares the real-time monitored data of the concentration of the organic waste gas with the safety concentration upper limit, and when duration in which the concentration of the organic waste gas in the inlet is higher than the safety concentration upper limit exceeds the safety time, the control system transmits signals to make the low-temperature plasma equipment stop working. By the adoption of the technical scheme, the problems are well solved, and the method can be used for safety protection control for degrading the organic waste gas through the low-temperature plasma.

The invention discloses a high-efficiency hot dip galvanizing production line which comprises a lifting appliance, a zinc pot, an acid washing tank, a water washing tank, a cosolvent tank and a cooling tank. The high-efficiency hot dip galvanizing production line can quickly remove bubbles on the workpiece surface in the workpiece galvanizing process, can gather the zinc ash on the surface before the workpiece is taken out of the zinc pot so as to prevent the adhesive pollution, can enable the reflux motion of the acid liquor in the acid washing tank so as to increase the contact reaction rate between the acid liquor and acid-washed workpiece, can monitor the concentration of the acid liquor in real time, can enable the water washing of the workpiece to proceed more quickly and thoroughly, can enable the contact between the workpiece and cosolvent more uniformly and quickly, can eliminate the influence of the impurities and stains attached to the workpiece surface on the cosolvent treatment so as to effectively ensure the feed quality of the subsequent procedure, and can enable the water cooling heat transfer of the acid washing wastewater for the hot dip galvanizing cooling tank so as to save the water resources and enhance the wastewater utilization efficiency, thereby saving the production cost.

The invention discloses a mainstream type synchronous monitoring device and method for multiple kinds of breathing gas concentrations and breathing gas pressure. A light source is controlled to flicker, so that a four-channel infrared sensor outputs modulation signals with a fixed period. Measuring channel voltage and reference channel voltage of the four-channel infrared sensor and an output value of a differential pressure type gas pressure sensor are acquired. The breathing gas concentrations are monitored, and alternating components of all channels are acquired through wave crest and wave trough differential values of all the channels. Measuring data of three measuring channels are adjusted through a correction equation, and an adjusted numerical value of the carbon dioxide channel is obtained, an adjusted numerical value of the nitrous oxide channel and the adjusted numerical value of the ether atmosphere anesthetic gas channel are obtained. The concentrations of different gases are obtained through coefficients obtained through a calibration test and a three-order polynomial. A determined formula is fit according to the previous calibration test and a two-order polynomial through the output value of the gas pressure sensor, and current breathing gas pressure is determined. Real-time speed and breathing flow of breathing flow are obtained. The lung volume is obtained. The multiple kinds of breathing gas concentrations and breathing gas pressure can be synchronous monitored conveniently and fast.

The invention relates to an intelligent circulating liquid feeding device and an intelligent circulating liquid feeding method for a lining accelerated corrosion test. The device is formed as follows: a corrosive liquid tank with water-seeping bottom is arranged on the top surface in the middle of a lining; a second hydraulic pressure sensor is arranged at the bottom of the corrosive liquid tank; a liquid outlet end of a liquid feeding pipe is arranged in the corrosive liquid tank; a liquid feeding tank is arranged above the lining; an electric stirrer, a solute concentration meter and a first hydraulic pressure sensor are arranged in the liquid feeding tank; the bottom of the liquid feeding tank is connected with a liquid inlet end of the liquid feeding pipe; a flow control valve is serially connected with the liquid feeding pipe; a liquid collecting tank is arranged right under the lining; a third hydraulic pressure sensor is arranged at the bottom of the liquid collecting tank; a liquid return pipe is connected with the lower part of a side wall of the liquid collecting tank; the other end of the liquid return pipe is arranged in the liquid feeding tank; a miniature water pump is serially connected with the liquid return pipe; the electric stirrer, the solute concentration meter, the first, second and third hydraulic pressure sensors and the miniature water pump are all electrically connected with an intelligent control and display system. The intelligent circulating liquid feeding device is used for supplying the corrosive liquid, the acquired test data is more accurate and reliable and more reliable test data can be supplied for the design and construction of a tunnel lining structure.

The invention provides an excavated tunnel gas detection system and a method for advanced detection of spillage of oil gas and gas. The method for advanced detection of spillage of oil gas and gas of the excavated tunnel gas detection system is characterized in that the method comprises the following steps: a step 1, advanced geological boring detection: advanced geological boring detection is carried out for front of an excavated tunnel face; a step 2: detection of an excavated tunnel gas detection system: the excavated tunnel gas detection system is applied for collecting a gas data sheet; a step 3: data analysis and verification: concentration of front gas is predicated. The excavated tunnel gas detection system and the method for advanced detection of spillage of oil gas and gas by using the system employ a complex geophysical prospecting method with combination of gas monitoring and advanced geological boring for carrying out mutual data statistics, at the same time concentration of front gas is predicated by means of analysis and calculation of all data, so that the problems that front gas concentration is difficult to predict in tunnel construction and effective measures for reducing construction risks cannot be adopted are solved.

The invention relates to a high-energy physics fracturing device. The high-energy physics fracturing device comprises a control terminal and a plurality of medium phase change fracturing device bodies connected with the control terminal. The control terminal detects and controls the working state of the medium phase change fracturing device bodies connected with the control terminal. Each medium phase change fracturing device body comprises a storage pipe, a constant pressure energy discharging device, an energy guide device, a trigger device, a controller, a fixing device, a pressure sensor, a gas concentration detection sensor and a battery. The control terminal controls the working state of the medium phase change fracturing device bodies through the controllers. The controllers transmit received pressure value signals and received gas concentration signals in the storage pipes to the control terminal. The control terminal comprises an LCD touch screen. Each controller comprises a 51 single chip microcomputer and provided with an LED which is connected with the 51 single chip microcomputer. The high-energy physics fracturing device adopting the structure has the advantages of being capable of improving the blasting quality and efficiency and decreasing safety accidents, convenient and flexible in using and low in invested cost.

The invention provides a robot and a method for intelligently monitoring and evaluating a dangerous gas source in unsealing a closed roadway of a coal mine, and relates to the technical field of intelligent monitoring equipment of mines. The robot comprises a control system, a crawler-type driving system, a dangerous gas source monitoring system, a danger early-warning and intelligent evaluating system, a running data storing system and a navigation system, wherein the control system is used for receiving and processing wireless transmission signals; the a crawler-type driving system and the navigation system are used for controlling a walking route; the dangerous gas source monitoring system comprises a gas detection manipulator for monitoring the concentrations of gases such as O2, CH 4,NH 3 and the like with different heights; the dangerous gas source monitoring system is used for establishing an air field three-dimensional cloud picture of the closed roadway according to monitoring data; the danger early-warning and intelligent evaluation system is used for determining the roadway danger and finishing early warning; the running data storing system is used for storing the monitoring and evaluation results, and the detection data are used for comprehensively evaluating the danger of the seal opening of the closed roadway. The method solves the problem of comprehensively andaccurately evaluating the suffocation danger of the unsealed closed roadway.

The invention discloses an industrial refuse cracking incineration offgas deacidification treatment method. The offgas sequentially passes through the following devices: a gas overheat protector, a thermal gas mass flow meter, a mixed gas flow regulating valve, a bag-type dust remover, a front-end SO2 concentration sensor, a filtering flame arrester, an SO2 catalytic oxidation reactor, a sulfuric acid aerosol generator, a ferrous powder contact polarization attraction reaction still, an alkaline tower, a water steam separator, a tail-end SO2 concentration sensor and an exhausting fan. The system can carry out overheating protection on the whole system according to the air inflow temperature of industrial refuse cracking incineration offgas; the method can monitor the SO2 removal efficiency of the entire system in real time, creatively reacts sulfuric acid aerosol with ferrous powder to generate ferrous sulfate aerosol and attracts and separates ferrous sulfate aerosol under the effect of a high-intensity magnetic field to realize the purpose of efficiently removing SO2; in addition, the separated ferrous sulfate aerosol as a by-product can be collected and recycled.

The invention discloses an automatic chip removal filtration system stabilizing the processing quality. The system comprises a chip removal device, a cooling water tank, a chip collection vehicle andother optional auxiliary filtration products. Cutting fluid mixed with impurities complete primary filtration through overflowing by means of an inner filter box of the chip removal device; the cooling water tank comprises a water tank body, a secondary filter basket, a labyrinth type cooling duct, a tertiary filter net and a circulating water pump; liquid obtained after primary filtration flows into a chip collection box in a water tank filtration system through an overflow port, the chip collection box structure contains a 40-mesh filter net, and secondary filtration of the cutting fluid canbe achieved; the cutting fluid obtained through secondary filtration flows through the labyrinth type cooling duct, and by lengthening the path, the sufficient cooling effect is achieved; grease on the cutting fluid surface is removed through a floating oil removing device, and deterioration of the cutting fluid is effectively prevented; the cutting fluid flowing through the floating oil removingdevice achieves tertiary filtration through a double-layer filter net; finally, the cutting fluid obtained after cooling and filtration is supplied to a machine tool through the circulating water pump.

The invention discloses an immersion optical fiber fluorescence phytoplankton measuring system. The system comprises an excitation unit, a fluorescence receiving unit and a data acquisition and control unit, wherein the excitation unit comprises a laser (1) and a conduction optical fiber (3); the fluorescence receiving unit comprises an underwater immersion module (4), a detection optical fiber (2), an optical filter (10) and a photoelectric conversion module (6); the data acquisition and control unit comprises a computer (9), a data acquisition module (8) and a gating signal module (7); and the whole system is divided into an underwater part and an overwater part. The immersion optical fiber fluorescence phytoplankton measuring system has an impact structure, a small volume, high sensitivity and strong anti-electromagnetic interference capacity, is convenient to maintain, can complete on-line measurement of phytoplankton in a water body at different depths so as to realize stereo measurement of the content of the phytoplankton, and can be widely applied to rapid and real-time monitoring of the concentration of the phytoplankton.

The invention discloses a garbage excavation all-in-one machine, and relates to the field of garbage treatment. The garbage excavation all-in-one machine comprises a machine body. The machine body is provided with a bucket, a conveying trough, a driving cabin and a traveling mechanism, and the conveying trough is provided with a conveying belt. The garbage excavation all-in-one machine further comprises a dust precipitating system and an air purification system. The dust precipitating system comprises a water tank, an atomizer and a sprayer which communicate in sequence through pipes. The air purification system comprises air intake pipelines, an exhaust fan and an air purification box which communicate in sequence through hoses. The garbage excavation all-in-one machine has the beneficial effects that the air purification system and the dust precipitating system can rapidly and effectively remove dust generated during excavation of garbage and purify the air, thereby avoiding injury to workers and pollution to the environment; the sprayer is arranged above the feeding end of the conveying trough; two air intake pipelines are located on the left side and the right side of the bucket correspondingly; and the sprayer and the air intake pipelines are both very close to the excavation point, so that dust and harmful gas are removed immediately when not dispersing yet. The garbage excavation all-in-one machine has the advantage of good treatment effect.

The invention discloses an agricultural mechanical tent. The agricultural mechanical tent comprises sliding rails, supporting boards, a moving rack, a motor I, a ball screw, rotating racks, a rotatingshaft, a bevel gear I, a bevel gear II, a turbine, a worm, a gear shaft, a motor II and a thin film. By means of the agricultural mechanical tent, an automatic film covering function is achieved, labor is greatly saved, the working efficiency is improved, when a device is in use, the motor II is started first, the worm and the shaft of the motor II rotates simultaneously, the worm is in transmission with the turbine in a meshed mode, the turbine and the bevel gear II rotate simultaneously, the bevel gear I is in transmission with the bevel gear II in a meshed mode, thus through the rotating shaft, the rotating racks rotate at a certain angle until the bottom ends of the other sides of the rotating racks are attached to a rack, then the motor I is started, the shaft of the motor I drives the ball screw to rotate and then drives the moving rack to move linearly from one supporting board to a position attached to the inner side of the other supporting board, and thus the thin film automatically covers the rotating racks; by means of the device, real-time monitoring the carbon dioxide concentration in a greenhouse and illumination are further achieved.

The invention relates to an apparatus and a method for simultaneously monitoring sulfur dioxide and nitric oxide gas concentration by using a diode laser, and simultaneously relates to the apparatus and the method for simultaneously monitoring sulfur dioxide and nitric oxide gas concentration, and is the apparatus and the method for simultaneously monitoring sulfur dioxide and nitric oxide gas concentration with high measurement precision and stable performance, the apparatus comprises a signal generator, a temperature and current controller, a laser, a collimating lens, a beam splitter, a detector, a data collection card, a dichroic mirror, a sum frequency crystal and a computer; the method comprises the following steps: the sawtooth current drives the diode laser to output laser; the beam splitter divides the laser into two beams, wherein one beam of light enables incidence to gas to be measured to obtain a first group of data; the short wave light beam and long wave light beam are processed with the sum frequency and then enable incidence to gas to be measured to obtain another group of data; and the concentration of the gas to be measured can be obtained by analysis through the computer. The invention is the apparatus and the method for simultaneously monitoring sulfur dioxide and nitric oxide gas concentration.

The invention discloses a tunnel in-tunnel ventilation regulating and control device based on a wireless control terminal. The tunnel in-tunnel ventilation regulating and control device comprises the wireless control terminal, a ventilation state monitoring robot, a sensor installing frame, an air supply state detection device and an air pipe opening caliber and facing direction automatic regulating vehicle, wherein the wireless control terminal is carried about by tunnel ventilation monitoring personnel; the ventilation state monitoring robot can forwards and backwards move in a constructed tunnel; the sensor installing frame is arranged on the inner side wall of the constructed tunnel; the air pipe opening caliber and facing direction automatic regulating vehicle can forwards and backwards move in the constructed tunnel; the ventilation state monitoring robot and the wireless control terminal are communicated in a wireless communication mode; and the air supply state detection device, the wireless control terminal and the air pipe opening caliber and facing direction automatic regulating vehicle are communicated in the wireless communication mode. The tunnel in-tunnel ventilation regulating and control device has the advantages that the structure is simple; the design is reasonable; the operation is simple and convenient; the use effect is good; after the blasting is completed, the face blasting fume and harmful gas distribution condition and the air supply condition of a tunnel ventilation pipeline can be monitored after the blasting completion; and the pipe opening size of a flexible air pipe and the pipe opening facing direction can be simply and conveniently regulated.

The invention relates to an analysis device and method for directly measuring trace aluminum, silicon, phosphorus, sulphur and chlorine contents in a sample. The device comprises an X ray fluorescenceanalyzer unit (200), a charging unit (100), a sample cup (300) and a control unit, wherein the fluorescence analyzer unit (200) comprises a sample testing cavity (203) capable of carrying out gas filling; the charging unit (100) can controllably carry out air inflation and air exhaust on the sample testing cavity (203); and the control unit controls the analysis device, carries out integration and statistics on collected data, draws a work curve, and carries out calibration and other processing to obtain the contents of each element, including aluminum, silicon, phosphorus, sulphur and chlorine in the tested sample in one time. The analysis device has the advantages that the sample does not need to be subjected to preliminary treatment, and the analysis device is suitable for solid and liquid samples and has the characteristics of being nondestructive, direct, quick, high in sensitivity, low in use cost, convenient in field measurement and the like.

The invention discloses a patrol inspection robot and patrol inspection method for a pig farm and belongs to the field of robots. The robot comprises a rack, wherein a walking module, an energy supplymodule, a control module, a monitoring module and a mechanical arm module are mounted on the rack; the walking module is used for driving the robot to move; the energy supply module is used for supplying electricity; the control module is used for controlling the work of other modules; the monitoring module comprises a panoramic monitoring device used for observing surrounding environment; and the front end of the mechanical arm module is provided with a partial monitoring device used for observing partial environment and single microorganism. The manual patrol inspection of the pig farm is no longer needed, the patrol inspection of the pig farm can be automatically carried out, the breeding environment of the pig farm and the growth condition of pigs are observed in real time, comprehensive observation can be carried out on the partial environment and individual pigs from multiple angles, and the patrol inspection validity is high. The patrol inspection method adopts the patrol inspection robot to carry out patrol inspection work on the pig farm, the patrol inspection effect is great, and labor and materials are saved.

The invention discloses horizontal pipeline type boron concentration detection equipment of a nuclear power plant. By the aid of the horizontal pipeline type boron concentration detection equipment, problems of low accuracy of the boron concentration monitored by boron concentration measurement systems in the prior art and incapability of meeting requirements on controlling the boron content of primary water of reactors in real time and guaranteeing the operation safety of the reactors mainly can be solved. The horizontal pipeline type boron concentration detection equipment comprises a neutron source generating assembly, a neutron source detecting assembly, an upper shielding assembly and a lower shielding assembly. The neutron source generating assembly is arranged above a chemical volumetric pipeline and is used for emitting neutrons, the neutron source detecting assembly is arranged below the chemical volumetric pipeline and is used for detecting the neutrons, the upper shielding assembly wraps the neutron source generating assembly to feed the neutrons emitted by the neutron source generating assembly into the chemical volumetric pipeline, and the lower shielding assembly wraps the neutron source detecting assembly to feed the neutrons in the chemical volumetric pipeline into the neutron source detecting assembly. The horizontal pipeline type boron concentration detection equipment has the advantages of safety, high detection accuracy, simple structure, convenience in mounting and the like.

It is a device to simultaneously monitor the concentration of the carbon monoxide and carbon dioxide and relates to diode laser spectrum application technique field, which comprises saw tooth wave generator 1, current controller 2, temperature controller 3, diode laser 4, first convex 5, second convex 6, detector 7 and computer, wherein, the output end of I is connected with input end of signal 2; the control output end of 2 is connected with current control end of 4; the output laser is input to the input end of 5 and is output by transmission of 5; the laser through the gas to be measured to the input end of 6; the data signal output end of 7 is connected with data input end of 8.

The invention discloses an intelligent coal caving mechanism of full-mechanized caving mining, and belongs to the technical field of full-mechanized top coal caving mining equipment. The intelligent coal caving mechanism of full-mechanized caving mining comprises a tail beam outer box, tail beam baffle, a monitoring system and a controller, wherein the monitoring system comprises a coal and ganguerecognizing instrument, a gas monitoring instrument and an ultrasonic crushing instrument; the upper and lower faces of the tail beam outer box are provided with coal caving ports respectively, a tail beam insertion plate can be telescopically inserted into the tail beam outer box through driving of a driving mechanism and used for opening or closing the coal caving ports; the lower surface of the tail beam outer box is provided with the coal and gangue recognizing instrument and the ultrasonic crushing instrument, and the gas monitoring instrument is arranged on the lower surface of the front end of the tail beam insertion plate. The intelligent coal caving mechanism of full-mechanized caving mining has the advantages that effective discharging of top coals can be achieved under the situation that a hydraulic support tail beam does not rotates, visible gangues are automatically closed, coal briquettes with larger blockness and not passing through a coal caving window is broken safelyby adopting an ultrasonic disruption technology to ensure smooth discharging of the top coals, the gas monitoring instrument monitors the gas concentration in a gob in real time, equipment can be controlled to be turned off when gas is excessive, thereby achieving safe, efficient and intelligent production.

The invention discloses an intelligent home horticultural irrigation system based on the internet, comprising an irrigation pipeline system, a nutrient solution supply system and a control system. Theirrigation pipeline system comprises a main pipeline and at least one group of branch pipelines; the nutrient solution supply system comprises a nutrient solution tank and a motor; the nutrient solution tank is mounted on the side of the water storage tank through a support; the lower part of the nutrient solution tank is communicated with the water storage tank through a nutrient solution pipe;the motor is mounted on the upper part of the water storage tank through a motor seat; the middle of the nutrient solution pipe is fitted with a nutrient solution electromagnetic valve; the control system comprises a computer host, a conductivity sensor, a soil humidity sensor and a flow sensor; and the conductivity sensor, the soil humidity sensor and the flow sensor are in signal connection withthe computer host. The intelligent home horticultural irrigation system based on internet provides automatic and accurate irrigation in simple and convenient manner, is convenient to operate and use,and can supplement a nutrient solution according to actual requirements, so that manual operations are decreased.

The invention discloses an intelligent monitoring fire extinguishing system and a control method for a bus compartment. According to the control method disclosed by the invention, a temperature and concentration detection module for detecting the temperature and the dangerous gas concentration in the compartment is disposed in an internal space of the bus compartment so as to monitor the safety environment and the temperature environment in the compartment in real time. Therefore, an early warning is provided for a driver in the cases of excessive concentration of dangerous goods and over-quick temperature rise; and an automatic fire extinguishing means is provided, thereby gaining the buffer time for event handling and personnel evacuation.

The invention discloses a novel sampling and monitoring system for open space oil material fire pollution. A dust preventing and filtering stopper is disposed at the head of each sampling tube. A high-temperature-resistant thermal-insulation material is disposed outside each of the sampling tubes. A sucking pump is installed at the tail end of each of the sampling tubes. Each of the sampling tubes is connected to the left side of a sampling terminal monitoring device. Temperature sensors are connected to the left side of a temperature recorder. A mobile hinge is disposed on the top of each support. The supports and the mobile hinges are cooperatively installed under the mobile hinges to play a supporting role. A scalable metal sleeve is disposed above the mobile hinges. Metal sleeve side tubes are respectively disposed outside the sampling tubes. Side tube mobile hinges are respectively disposed at the lower parts of the metal sleeve side tubes. The sampling and monitoring system can perform multi-point sampling and monitoring for pollution gas, can achieve pollution gas colleting and monitoring in different positions and at different heights by adjusting the scalable metal sleeve and the mobile supports, and can complete temperature monitoring for the point location at the same time of gas collection.

The invention discloses a ventilation state monitoring robot used for tunnel construction. The robot comprises a horizontal base plate, a horizontal flat pallet above the horizontal base plate, and a left adjusting stand column and a right adjusting stand column and a left rotation driving mechanism and a right rotation driving mechanism respectively installed on the left side and the right side of the horizontal base plate. The left side and the right side of the upper part of the horizontal base plate are respectively provided with a left adjusting base and a right adjusting base used for installation of the left adjusting stand column and the right adjusting stand column. The side wall of the left adjusting stand column is provided with a left side detection arm. The side wall of the right adjusting stand column is provided with a right side detection arm. The left side detection arm and the right side detection arm are hydraulic telescopic rods. The front ends of the left side detection arm and the right side detection arm are provided with air condition detection units. The robot is simple in structure, rational in design, simple in use and operation, and good in use effect. The robot can move front and back in a construction tunnel, and can directly head for a tunnel face after blasting, and monitors distribution conditions of fume and harmful gas on the tunnel face.