238results about How to "Achieve concentration" patented technology

The invention discloses a movable rack-based integrated archives management system. The movable rack-based integrated archives management system utilizes position identification labels to give an exclusive storage position for each document, and documents are centrally recorded in a database of a master control computer; when a document needs to be stored, the positional information of the document is identified by a mobile terminal, an area control computer controls a movable rack corresponding to the document to be stored to open, and controls a locating lamp to indicate a storage position for the document; in the movable rack, the storage condition of the document is monitored by a third position identifier in real time in order to guarantee the accuracy of the storage of the document; and the delivery of documents is monitored by a fourth position identifier. The process realizes the central and orderly management of documents, and document entry, document storage, document delivery and other links can be carried out in order. The integrated archives management system is formed into an Internet of things for document management, and by means of the cooperation between all the parts of the system, the system greatly increases the efficiency of document management and saves manpower cost.

The invention discloses a wireless power supply system which comprises at least one energy-supply host node and at least one energy-consumption slave node. The host node comprises a host node antenna, a main control module, a main resonance loop, a main oscillation regulation module, a power drive module and a main communication module. The slave node comprises a slave node antenna, a secondary control module, a secondary resonance loop, a secondary oscillation regulation module, a power output module and a secondary communication module. The system further comprises at least an auxiliary node on the premise that the power supply system comprises only one host node and one slave node. The auxiliary node at least comprises a positioning communication module used for providing the host node with the information for positioning the slave node. The host node calculates the optimal control parameter according to the request and controls the operation of the host node and the slave node according to the obtained parameter, thereby realizing the efficiency optimization on the premise that the energy transfer meets the requirements. The invention also discloses a wireless power supply method. The method can control the resonance state of the coupled electromagnetic resonance between the host node and the slave node, thereby realizing the short-distance high-efficiency energy transfer.

The invention relates to an ultrasonic attenuation spectrum principle based method for measuring the average particle size and concentration of two types of mixed solid particles in a liquid or gas medium. The ultrasonic attenuation spectrum principle based method comprises the following steps of step 1, measuring an experimental measurement ultrasonic attenuation spectrum alpha (f) under the condition that the two types of solid particles A and B are located in a measurement area, wherein f is the ultrasonic frequency; step 2, calculating an acoustic attenuation coefficient Kext of the particle and acoustic wave effect; step 3, determining whether the particles are A particles or B particles and determining whether phonons are absorbed or scattered through the acoustic attenuation coefficient; step 4, calculating a scattering emergence angle theta M1 of the scattered phonons; step 5, continuing to calculate a theoretical ultrasonic attenuation spectrum through a result of the step 4; step 6, establishing an objective function according to the theoretical ultrasonic attenuation spectrum and the experimental measurement ultrasonic attenuation spectrum to solve the particle size and volume concentration. The ultrasonic attenuation spectrum based mixed solid particle size and concentration measurement method can be applied to the two types of mixed solid particles and laboratory scientific research and the online measurement and the application of the industrial field can be implemented.

The invention belongs to the technical field of fluorescent probes for metal ion detection and in particular relates to a fluorescent molecular probe for Cu2+ detection as well as a preparation method thereof and an application thereof. According to the invention, diaminomaleonitrile, which is modified at the fourth bit of N-n-butyl-1,8-naphthalimide in the form of Schiff base, is adopted as a probe molecule. The probe molecule has no fluorescence in an acetonitrile solution; Cu2+ aqueous solution of less than 1 equivalent is added to the probe solution; due to effects of amino groups and imino groups in the Cu2+ and the probe molecule, photoinduced electron transfer (PET) process is blocked while being excited by 360 nm lights; the absorbed energy is used for emitting lights so as to emit green fluorescence; when the concentration of the Cu2+ is more than 1 equivalent, the Cu2+ begins to act on together with two cyano groups so that the electron withdrawing capability is enhanced and the emission wavelength shifts to blue. With the increasing of the concentration, green light gradually disappears and the blue light is gradually enhanced. No corresponding response is generated by adding other metal ions. According to the invention, the copper ions are specially recognized by using the probe molecule; and with the increasing of the Cu2+ concentration, the probe is correspondingly changed from no fluorescence, to green fluorescence and to blue fluorescence. The special advantage of concentration response obtains broad application prospect in the particle detection field.

The invention relates to article management and provides an intelligent key cabinet which saves manpower resources, carries out precise management on keys of locks special for electric meter boxes, is safe and reliable, achieves intelligent management, achieves self-service borrowing and lending and completely eradicates hidden danger of electricity stealing and leakage. The intelligent key cabinet comprises a cabinet body, and further comprises an industrial control host computer, an identity recognition device, a control panel, a display screen, multiple indicator light sets, multiple RFID labels, multiple electric control locks, multiple displacement sensors, multiple RFID antenna panels and an RFID reader. The RFID antenna panels communicated with the RFID labels are arranged on drawers of all layers respectively, one indicator light set is arranged on each drawer of all layers, the displacement sensors and the electric control locks are also arranged on the drawers of all layers, the industrial control host computer reads the storage, taking and using information of keys in the drawers of all layers in real time through the RFID reader and all the RFID antenna panels, and the industrial control host computer senses the opening states of the drawers of all layers through the displacement sensors and controls the opening/closing of the drawers of all layers through the electric control locks.

The invention discloses a hexafluoroethane purification method which comprises the following steps: rectifying a hexafluoroethane raw material under the conditions of (-70)-(-35) DEG C and 0.1-1 MPa; performing low-temperature adsorption on the rectified hexafluoroethane raw material under the temperature conditions of (-100)-(-70) DEG C; and performing pressurized adsorption on the hexafluoroethane raw material after low-temperature adsorption under the pressure conditions of 0.5-1.5 MPa, thus obtaining the hexafluoroethane product, wherein the CO2 volume concentration of the hexafluoroethane product is no more than 0.5 ppm, and the H2O volume concentration is no more than 1 ppm. According to the invention, the problem that potential safety hazard is caused due to insufficient CO2 and H2O removal depth and introduction of anhydrous HCl in hexafluoroethane is solved, the energy consumption is reduced, and the adsorption effect of adsorbent is enhanced; and the purity of the hexafluoroethane product is up to 99.9995% or above, thus meeting the requirements for electronic specific gas in the semiconductor and micro-electronics industry.

The invention provides a monitoring and managing system for wind power storing station comprehensive information. The system comprises a wind turbine monitoring system, an energy-storing and power-distributing monitoring system, a wind power predicting system, a battery managing system and a wind storing comprehensive information system. The wind turbine monitoring system, the energy-storing and power-distributing monitoring system and the wind power predicting system are connected to the wind storing comprehensive information system. An energy-storing monitoring system part is composed of the battery managing system and the energy-storing and power-distributing monitoring system. Corresponding wind power data, data in the wind turbine monitoring system, data in an energy storing and converting system and data in the battery managing system are combined, and graphs, tables and other forms are utilized to provide overfull and direct display to operators and managers, display of wind storing comprehensive power generating performance is realized through deep extraction, excavation and analysis of the data, wind-storing coordinating operation is further optimized, and determine support is provided for superior scheduling and the managers.

The invention discloses an intelligent micro-grid control system and an intelligent power consumption management method. The system comprises: a controller, a plurality of loop monitoring auxiliary machines, a server, an ammeter and a cell. The loop monitoring auxiliary machines respectively monitor each energy consumption equipment and read energy consumption data of the equipment loop. The controller controls a plurality of the loop monitoring auxiliary machines and transmits an energy consumption equipment running state obtained by the loop monitoring auxiliary machines and an energy consumption read value through the server. A user can read the data on a cloud platform through a computer or a mobile phone and carry out monitoring and management. When the energy consumption of the energy consumption equipment generates overload or abnormity, a warning message can be emitted so as to notify the user. Therefore, the user can grasp an abnormity state of energy consumption safety. The system possesses functions of energy consumption safety, energy consumption overload warning and energy consumption abnormity warning. Besides, a cloud service function is possessed. The running state data of each energy consumption facility can be transmitted to the cloud server. The user can remotely control the running and usage of the each energy consumption facility through an internet-connected device. The intelligent management can be realized.

The invention provides a building water supply intelligent management system which comprises an inlet, a plurality of pipelines, a plurality of outlets and a display control unit, wherein each pipeline respectively comprises a control valve and a flowmeter, each pipeline corresponds to the inlet and one outlet, the display control unit is respectively connected with the flowmeter and the control valve, the flowmeter is used for detecting the water consumption of a user in real time and sending the information of the water consumption to the display control unit; and the display control unit is used for controlling water supply of each pipeline through the control valve and the flowmeter. The building water supply intelligent management system and the method thereof can ensure that a user sets water consumption more actively and uses reasonably the waste through setting a water supply metering mode of one inlet and multiple outlet, and are beneficial to centrally, intelligently and remotely managing the water supply of the building by the management departments.

The present invention provides a user account control method and system on the basis of multi-application systems. The method includes the steps as follows: establishing unified user data source on the basis of user ID and user identity information, and collecting user accounts of various application systems, wherein, the user accounts of various application systems are established on the basis of user ID; establishing a mapping relation of the user in the unified user data source and the account of the user in various application systems on the basis of user ID; and modifying the authority of the account of the user in the corresponding application system on the basis of the mapping relation, wherein, the authority modification of the account of the user in the application system includes authority permission, authority forbidden and authority revoke. The user account control method and system on the basis of multi-application systems can minimize the reform of various application systems so as to save huge costs for an enterprise; achieve the automatic controlling effect so as to improve the work efficiency; and strengthen the system resource authority controlling so as to ensure the information security.

The invention discloses a mixing interference distributed optical fiber-based leakage detection device for an underwater long-distance pipeline. The mixing interference distributed optical fiber-based leakage detection device comprises an optical fiber sensing system, a signal demodulating system, a signal processing and communication system and a human-machine interaction system, wherein a small-coherent-length high-power light source of the optical fiber sensing system, an optical circulator, a first coupler, a delay optical fiber, a second coupler, a sensing optical fiber, a Faraday rotating mirror and a phase modulator constitute a Sagnac/Mach-Zehnder mixing interferometer; a light signal output by the interferometer is converted into an electric signal by the signal demodulating system, is demodulated, and is transmitted to the signal processing and communication system; a DSP (Digital Signal Processor) is used for processing signals, and determining leakage point position information; a 3G (three-generation) module is communicated with the human-machine interaction system; and monitoring information is displayed on the human-machine interaction system. The device can be usedfor detecting the leakage state of the underwater long-distance pipeline in real time, and has very high sensitivity and high positioning accuracy.

The invention discloses a circulating fluidized bed boiler system for incinerating waste blades and a working method thereof, and belongs to the technical field of fluidized bed boilers. A secondary air port of a circulating fluidized bed boiler is connected with a secondary fan through a secondary air pipeline; a crushing device is connected with an iron removing device, the iron removing deviceis connected with a conveying device, the conveying device is connected with a crushing device, the crushing device is connected with the secondary air pipeline through a conveying pipeline, and a first induced draft fan is arranged on the conveying pipeline; a flue gas outlet of the circulating fluidized bed boiler is connected with an inlet of a cyclone separator through a horizontal flue, and an upper end outlet of the cyclone separator is connected with a flue gas tail gas treatment system; and a bottom outlet of the cyclone separator is connected with a material returning system through avertical pipe, and the material returning system is connected with a material returning inlet of the circulating fluidized bed boiler. The system is reasonable in structure, the change of an originalCFB boiler system is small, the heat value of the waste blades is fully utilized, and centralized, harmless and resource treatment of the waste blades is realized.

The invention discloses a dust gridding positioning method and a dust gridding monitoring method, and the positioning method comprises the steps: building a space view field through a plurality of cameras, and obtaining a video image sequence photographed by each camera; identifying a spatial stationary object and spatial coordinates thereof; differentiating two adjacent frames of video images toobtain a grey-scale map sequence, and identifying a moving object and space coordinates thereof, a point cloud graph of high-concentration dust and a point cloud graph of low-concentration dust; performing spatial relative position analysis on the high-concentration dust, the low-concentration dust, a static object and a moving object, and determining a dust generation source; obtaining the spacecoordinates of the moving dust according to the space coordinates of the moving object source and the static object source generated by the dust; and performing spatial deduction and visual tracking on the moving dust based on the migration parameters of the dust to complete continuous tracking and positioning of the dust. Characteristic recognition is carried out on dust through a machine visionsystem, and gridding space positioning of dust in a space to be detected is achieved through combined use of the machine vision system and a sensor.

The invention discloses an underground comprehensive pipe gallery system based on autonomous maintenance of a shape-shifting robot. The underground comprehensive pipe gallery system based on autonomous maintenance of the shape-shifting robot comprises the shape-shifting robot and a control center. A gas collection device, a video camera, a first communication module, a pipeline crack and pipeline joint welding device and a corrosion-prevention spraying device are integrated on the shape-shifting robot. The signal output end of the gas collection device is connected to the signal input end of the first communication module. The video camera is in both-way communication connection with the first communication module. The signal input end of the pipeline crack and pipeline joint welding device and the signal input end of the corrosion-prevention spraying device are connected to the signal output end of the first communication module. The control center comprises a second communication module in both-way communication connection with the first communication module, a data processor in both-way communication connection with the second communication module, and command input equipment used for inputting control commands to the data processor. By adoption of the underground comprehensive pipe gallery system based on autonomous maintenance of the shape-shifting robot, timely repairing of a pipeline leakage part is achieved.

The invention discloses an MEMS micro-heating chip of a composite structure and a manufacturing method of the chip. The MEMS micro-heating chip comprises a supporting frame and a composite film arranged in the supporting frame in a suspended mode. The composite film comprises a lower insulating layer, a heat insulation layer, a heating electrode layer, a middle insulating layer, a heat conductive layer, a testing electrode layer and an upper insulating layer in sequence in a set direction. The lower insulating layer is used for electrically isolating the heating electrode layer from the supporting frame, the heat insulation layer is used for thermally isolating the heating electrode layer from the supporting frame, the middle insulating layer is used for optically isolating the heating electrode layer from the testing electrode layer, and the upper insulating layer is used for electrically isolating the testing electrode layer from the supporting frame. The micro-heating chip has good thermal stability, and a polymer serves as the heat insulation layer and can improve thermal sensitivity. Meanwhile, the process of bonding the heating electrode layer with the testing electrode layer is utilized, device failure caused by film stress in the single-side preparing technical process can be effectively avoided, and the device yield is increased.

The invention belongs to the field of electric power systems, and particularly relates to a station territory and wide territory integrated protection structure mode system and a method thereof. The system is characterized in that an interval protection module, a station territory protection module and a wide territory protection module are included; the interval protection module achieves the production function of intervals on the basis of the protection intervals of all transformer substations, extracts protection action information or electrical capacity information and uploads the protection action information or electrical capacity information to the station territory protection module; the station territory protection module centralizes information of all the stations on the basis of the interval protection module to achieve the protection function of all the transformer substations and uploads the protection action information to the wide territory protection module; the wide territory protection module achieves the wide territory protection function in a distributed mode according to interstation interactive information and the protection action information uploaded by the local station territory protection module. According to the system, a longitudinal hierarchical relay protection frame system is achieved, and the purpose of improving the relay protection performance is achieved through mutual connection of time and synergistic cooperation of the action information.

The invention relates to a device for measuring the coal bed gas content based on a flow method. The device comprises a drilling machine, a drill rod, a drill bit, a compressed air connector, a wall protection steel pipe and a comprehensive measurement sleeve, wherein a compressed air opening is formed in the middle of the drill bit; a compressed air passage is arranged in the middle of the drillrod; and a drilling machine propeller and a drilling machine clamper are respectively arranged on the drill rod in a sleeving way. The compressed air connector is arranged at the back end of the drillrod; and a flowmeter is arranged on an underground compressed air pipeline. A polyurethane layer is fixedly arranged between the wall protection steel pipe and a coal bed drilling hole. The comprehensive measurement sleeve is arranged at the back part of the wall protection steel pipe in a sleeving way; a drill rod inserting hole is designed in the middle of the back end of the comprehensive measurement sleeve; a methane depth sensor is fixedly arranged on the inner wall of the comprehensive measurement sleeve; a data memory is arranged at the upper end of the outer wall of the comprehensivemeasurement sleeve; a slag discharging opening is formed in the lower end of the back part of the comprehensive measurement sleeve; and a coal sample tank is fixedly arranged on the slag discharging opening. The device for measuring the coal bed gas content based on the flow method has the advantages that the coal bed drilling hole is mainly constructed in an underground working face of a coal mine; and the gas emission quantity in the coal slack discharging process of the drilling hole is measured in the drilling hole construction process.

The invention discloses a dust concentration detection system based on dual-frequency ultrasound, and a detection method thereof. A dual-frequency ultrasonic sensing unit including a first ultrasonicsensor and a second ultrasonic sensor is adopted to respectively acquire a first ultrasonic signal and a second ultrasonic signal, a temperature sensor is adopted to acquire a temperature signal, thefirst ultrasonic signal and the second ultrasonic signal undergo environmental compensation, the volume concentration of dual-frequency ultrasound compounded multi-phase particles is obtained by a feature fusion algorithm in order to realize the complementation of the test performance or test data, make up for the deficiency of single frequency detection and complete the fast, accurate and efficient detection of a complex test object. A controller is controlled to receive the concentration data in an interrupt mode, so no waiting time is required, the parallel implementation of signal acquisition and concentration calculation is realized, and the detection efficiency is improved.

The invention relates to a wireless charging device with a dynamic frequency modulation function and a metasurface structure, and an application of the wireless charging device. The wireless chargingdevice comprises an energy conversion unit and a functional layer; the functional layer comprises a liquid-state metal metasurface structure layer and is distributed in the circumferential direction by taking the energy conversion unit as the axis to form a metasurface in circumferential distribution; or the functional layer also comprises a grounding metal layer; the functional layer is distributed in the radial direction by taking the energy conversion unit as the center of a circle to form a metasurface in radial distribution; the liquid-state metal metasurface structure layer comprises a dielectric substrate and a plurality of metasurface structural units arranged on the dielectric substrate; each metasurface structural unit comprises a liquid-state metal collector arranged on the dielectric substrate, an electrolyte solution collector, and an annular metasurface structural unit channel; and the liquid-state metal collector and the electrolyte solution collector are uniformly distributed and connected with the metasurface structural unit channel. In wireless charging, by virtue of the liquid-state metal metasurface structure, dynamic phase modulation and high focusing effect onwave source can be achieved.

The invention discloses a temperature and concentration imaging method of magnetic nanoparticles. The method comprises the steps of generating zero magnetic field points by using a gradient magnetic field, determining a sample spatial position activating a magnetic resonance signal, controlling the positions of zero magnetic field points of a direct current gradient magnetic field by using step triangular wave driving magnetic fields in different directions, applying a pulse static magnetic field and radio frequency pulse waves, detecting magnetic resonance frequency information of a magneticnanoparticle liquid sample, obtaining concentration information and temperature information of the magnetic nanoparticles by using a relationship between resonance frequencies and magnetisability of the magnetic nanoparticles according to resonance frequencies of a magnetic nano reagent in different spatial positions within an imaging scope, and finally, achieving magnetic nano temperature imaging. The method achieves the temperature imaging through the concentration information and the temperature information of the magnetic nanoparticles obtained by using a nuclear magnetic resonance technology, effectively increases spatial resolution of magnetic nanoparticle imaging and achieves temperature distribution imaging. According to simulation data, the spatial resolution of the magnetic nanoimaging can be increased and the temperature imaging can be achieved by using the magnetic resonance frequencies for the temperature imaging.

The invention discloses an extraction separation device for biopharmaceutical and belongs to the technical field of biopharmaceutical. The extraction separation device comprises a liquid allocation cabinet, a waste gas purification mechanism, a centrifugal mixing mechanism and a solid-liquid separation mechanism, wherein a discharge funnel communicating with the interior of the liquid allocation cabinet is arranged at the bottom of the liquid allocation cabinet; a discharge pipeline communicating with the interior of the discharge funnel is arranged on the discharge funnel; a liquid inlet pipeline is arranged at the upper section of the liquid allocation cabinet; a filtering net is arranged inside the liquid allocation cabinet; the solid-liquid separation mechanism comprises a push plate,a moving strip, an anti-plugging component and a discharge component; and the push plate is horizontally arranged at the bottom of the moving strip. The extraction separation device has the beneficialeffects that through the solid-liquid separation mechanism, solid-liquid separation can be achieved, mesh holes of a filtering net can be prevented from being blocked, an extraction liquid and a liquid can be sufficiently mixed through the centrifugal mixing mechanism, a gas can be conveyed into a purification cylinder through the waste gas purification mechanism under the action of a fan, and centralized treatment on the gas can be achieved.

The invention provides an underground wireless DCS (data communication system) safety monitoring system comprising a wireless network, a sensor module, an A/D (analog/digital) conversion module, a digital-analog transmission module, a server, a signal transceiver module and a processor. The sensor module, the A/D conversion module, the digital-analog transmission module, the server, the signal transceiver module and the processor are in communication by the wireless network. Environmental index parameters of different positions underground can be monitored by the system at any time and then sent to the processor of a monitoring center to be subjected to information analysis so as to realize early warning; further, accident locations of mines can be determined within a short time, emergency processing scheme making is facilitated, and safety of underground operators is guaranteed effectively.

The invention provides a light-emitting diode (LED) umbrella-shaped folding lamp. The lamp comprises a base, an upright rod, a bracket which is arranged on the top of the upright rod, and a plurality of lamp cap components which are fixed in the bracket, wherein the end of each lamp cap component, which is inserted into the bracket, is provided with a rotating shaft; the bracket comprises a bracket upper cover and a bracket lower cover which are connected through a bolt; the lamp cap components are arranged in the bracket and can rotate a certain angle; the upright rod has a hollow tubular structure; the base comprises a base upper cover and a base lower cover; the upright rod is fixed between the bracket lower cover and the base upper cover; two upright rod bolts are arranged and have a hollow structure; an upper upright rod bolt passes through the inner side of the bracket lower cover and is fixed with the top of the upright rod; and a lower upright rod bolt passes through the innerside of the base upper cover and is fixed with the bottom of the upright rod. Each lamp cap component is provided with an independent light source, the characteristic of concentrated and decentralized illumination of an LED is fully exerted, and the LED umbrella-shaped folding lamp has a wide application prospect.

The invention provides a wireless charging microwave power transmission system, which can effectively perform remote and non-contact wireless charging of a plurality of devices at the same time. The wireless charging microwave power transmission system is achieved by the following technical solution: a charging signal transmitter continuously transmits microwave wireless rechargeable signals to aplurality of charged devices in a rechargeable radiation area through a charging signal transmitting antenna in a pulse mode; a charged device emits a charging request signal, an intelligent multi-beam tracking antenna periodically locates and tracks the charging request signal and searches the charging request signal position of the charged device, according to the determined charging request signal position, a digital processor calculates the amplitude and the phase required at each antenna unit port through a transmitting channel to allow the generated microwave wave beam to align the charged device in the rechargeable area, and the charged device receives the microwave to generate a direct current. By positioning and tracking the charged device, the remote mobile device can be effectively charged.

The invention relates to a multi-shaft horizontal rotary jet grouting machine and a construction method of the multi-shaft horizontal rotary jet grouting machine. The multi-shaft horizontal rotary jet grouting machine comprises a chassis as well as a main machine and a drilling tool arranged on the chassis, wherein the main machine comprises at least one feeding rack in a unit type frame structure, a power head arranged on the feeding rack, a thrusting mechanism for providing power to the power head to move along the feeding rack, and a double-tube water supplier for providing drilling water and jet grouted cement pulp to the drilling tool; the power head comprises a power shaft group and a rotating motor for driving the power shaft group to make rotational movement; the power shaft group comprises at least two power shafts which are parallel to each other and on one same plane; the drilling tool comprises a drilling nozzle and a drilling rod connected with the drilling nozzle; the other end of the drilling rod is connected with the power shaft. A plurality groups of rotary jet grouting drilling tools work simultaneously, so that the production efficiency is improved, and the labor is saved.

The invention provides a hydrogen sulfide gas concentration detection device which comprises a deuterium lamp, a first quartz lens, a sample pond, electromagnetic valves, a flowmeter, an air pump, a second quartz lens, an oxygen storage tank, a hydrogen sulfide storage tank, a barometer, an optical fiber, a spectrograph and a computer. The deuterium lamp is taken as a light source. Rays sent by the deuterium lamp pass through the coaxial first quartz lens. The sample pond is arranged between the first quartz lens and the second quartz lens. The electromagnetic valves are arranged at inlets/outlets of the sample pond. An air outlet is formed in the tail end of the sample pond. The air outlet is connected to a container filled with a strong alkali solution. A light barrier is arranged on thetail part of the sample pond. The barometer is also connected. The optical fiber is arranged on the other side of the second quartz lens, the optical fiber is connected to the spectrograph, the dataoutput of the spectrograph is connected to the computer, the hydrogen sulfide storage tank is connected to the air inlet of the sample pond through the first flowmeter and the electromagnetic valves and the oxygen storage tank is connected to the air inlet of the sample pond through the second flowmeter, the air pump and the oxygen inlet electromagnetic valves.