72results about How to "Real-time detectability" patented technology

The invention discloses an equalizing charge method and an equalizing charger. The equalizing charge method comprises the following steps: (1) connecting N (N is integer and is more than or equal to 2) single batteries in a battery pack in parallel; (2) independently and quickly charging the N single batteries at the same time; and (3) after the single batteries meet the charge requirement, finishing charging the battery pack. The equalizing charge method of the invention changes the series discharge mode of the single batteries of the battery pack into a parallel mode to independently charge the batteries of the battery pack, thus independently controlling the charge process of the single batteries to ensure equalizing charge for the single batteries. The charger of the invention uses a single chip control center as the core, and simply and precisely realizes independent charge and independent control of the single batteries.

The invention belongs to the technical field of oil-gas migration, and provides a device and a method for physically and quantitatively simulating an oil-gas migration path in real time in an on-line manner. The problem that the existing oil-gas migration only can be measured qualitatively is solved. A center control platform of the device is respectively connected with a control system and a monitoring system; a data processing and analyzing system is connected with a detecting system; the device also comprises a simulating box; the control system comprises a pressure control system, a temperature control system and an electrode control system; the simulating box is respectively connected with the pressure control system, the temperature control system and the electrode control system; the detecting system comprises a pressure detecting system, an electrode detecting and recording system and an oil and water metering system; the simulating box is respectively connected with the pressure detecting system, the electrode detecting and recording system and the oil and water metering system; and the data processing and analyzing system is respectively connected with the electrode detecting and recording system and the oil and water metering system. The existing quantitative measurement mode is omitted, and the device is high in precision and high in experimental defect and is convincing.

The application relates to the examining field of gene mutation and particularly relates to a PCR micro droplet kit for examining human EGFR gene mutation. The kit includes a nucleic acid amplification reagent; a reference substance and micro droplet PCR generated oil. The nucleic acid amplification reagent includes a primer and a probe for examining the No. 18 extron mutant, a primer and a probe for examining the No. 19 extron mutant, a primer and a probe for examining the No. 20 extron mutant, and a primer and a probe for examining the No. 21 extron mutant. The present application can be used for examining the seven species of the No. 18, 19, 20, and 21 extron mutants for the EGFR genes in the DNAs extracted from the paraffin-embedded pathology tissue slices and the peripheral blood dissociate DNAs. The present application provides a reference for the patients to choose the tumor molecularly targeted drug remedy and monitor. The present invention has absolute ration, high specificity, accuracy and high sensitivity.

The invention discloses a potato quick nondestructive testing and automatic grading device and method. The automatic grading device comprises a climbing roller shaft conveying device, a transverse conveying belt and a grading output device; and the climbing roller shaft conveying device, a soil removing conveying device, the transverse conveying belt, a longitudinal conveying belt and a grading output device are sequentially connected, and a light sorting device is arranged between the longitudinal conveying belt and the grading output device. By means of the potato quick nondestructive testing and automatic grading device and method, the four-eye stereoscopic vision technology is adopted, and a computer vision hardware system for potato external quality nondestructive testing is built according to three indexes including the weight, the potato shape and the external defect; after the potatoes are subject to outer surface cleaning, external characteristics of potatoes are restored through the four-eye stereoscopic vision technology, defective and abnormal potatoes are screened out, then the different potatoes are conveyed into corresponding grading boxes according to the mass of the potatoes, and potato quick, real-time, objective and nondestructive testing and grading are achieved.

The invention discloses a safety detecting method for a flue gas waste heat recovery power system of an industrial furnace. Furnace pipe leakage is detected by adopting information fusion and double parameters of furnace inside sound and furnace wall vibration; two measuring signals are mutually supplemented and mutually tested; and after two kinds of information are fused by a BP (Back Propagation) neural network, a leakage alarm is given. In the method, a fin between furnace pipes of all heated surfaces of the industrial furnace are perforate; sound wave guide pipes are communicated with the inner side of the furnace after penetrating through the opening on the fin and fixed between the furnace pipes and at a header; a reinforcing type sound wave sensor is installed at the other end of the sound wave guide pipe for receiving a noise signal transmitted into the furnace by the sound wave guide pipe; the sensor is used for acquiring and receiving all field sound data in the furnace, transmitting a current signal to an embedded type data acquiring and processing system at a long distance and transmitting the processed data to a host machine of a monitoring system by a network; and the wall of the industrial furnace is provided with a piezoelectric crystal vibrating sensor for detecting a vibrating signal of the furnace wall and giving a leakage alarm after fusing the two kinds of information.

The invention discloses a spherical feature extraction method, and relates to the field of computer vision. The method comprises the following steps: acquiring a spherical image which is represented in a uniformly parametric manner through a geodesic grid; performing FAST (Features from Accelerated Segment Test) feature detection on the spherical image; and processing filtered feature points through a spherical image feature point description algorithm for image gray value comparison to obtain descriptors of the filtered feature points. The method is high in computing speed, and spherical features can be detected and described in real time. Compared with an existing spherical feature extraction algorithm and a method based on local planar projection, the method disclosed by the invention has high algorithm robustness. The robustness of the method is reflected in case of rotation and movement of a camera.

The invention relates to the vehicle detection technology field, especially to a method of detecting the carrying capacity of a vehicle by measuring deformation of a steel plate, and also a measuring system. The method mainly comprises the steps: when a vehicle is in a static state, measuring deformation angles of vehicle steel plate springs when the vehicle has different loading capacities, and obtaining a corresponding relation between the loading capacities and the deformation angles; acquiring in real time state change data of the vehicle steel plate springs relative to a vehicle girder by means of a detector; calculating and obtaining instantaneous deformation angles of the vehicle steel plate springs in a vehicle static or driving state through the state change data; and obtaining the instantaneous vehicle loading capacity corresponding to the instantaneous deformation angles according to the corresponding relation between the loading capacities and the deformation angles of the vehicle steel plate springs. Through the deformation states of component parts of the vehicle when the vehicle has different loading capacities, the deformation angles of vehicle steel plate springs are utilized to serve as an index measuring the loading capacity of the vehicle to determine whether the vehicle is in a load-free state, fully loaded or overloaded and to calculate a loading capacity value of the vehicle. In this way, the loading capacity of the vehicle can be detected and monitored in a dynamic, real-time and accurate manner.

The present invention provides a method for the automatic detection of interference, which comprises: an eNB (evolved Node B) measures an IOT (Interference over Thermal noise) in real time, identifies the source of an interference signal according to the measured IOT, and sends the measured IOT and the obtained source of the interference signal to an OMC (Operation and Maintenance Center); and the OMC receives the measured IOT and the obtained source of the interference signal sent by the eNB, and determines the type of the interference signal according to the received IOT and the source of the interference signal. The present invention also provides equipment and system for the automatic detection of the interference.

The invention provides a tilting detection method for towers, which comprises the following steps of: 1, building a detecting platform; 2, arranging an electronic tag on a flat plate of the detecting platform; 3, placing a portable tilting detection device on the flat plate, transmitting the name, serial number, located geographic location as well as state (identified by the electronic tag) of a detected tower to an object tilt angle acquisition unit through an object information data acquisition unit of the tilting detection device, carrying out calculation processing on the information data so as to obtain tilting data, and judging whether the tilting data exceeds initial values; if so, sending an audible and visual warning signal to a data processing circuit; and 4, receiving the name, serial number and located geographic location of the detected tower, the tilting data and the audible and visual warning signal by the data processing circuit, carrying out alarming or displaying through a data display and alarm circuit, and storing the data into a data storage unit. The method provided by the invention can carry out real-time detection and accurate warning prompt on the tilting of towers, thereby gaining more maintenance time for maintenance personnel so as to make a better maintenance scheme.

The invention discloses a rapid detection method of the milk protein content based on a dielectric spectrum technique. According to the rapid detection method, dielectric spectra (a relative dielectric constant spectrum and a dielectric loss factor spectrum) of a batch of milk samples within a radio frequency/microwave range are obtained by utilizing a network analyzer (or an impedance analyzer) and a coaxial probe, characteristic dielectric variables which express the milk protein content are extracted from the dielectric spectra, linear or nonlinear prediction models which are used for predicting the milk protein content are established on the basis of the dielectric spectra or the extracted characteristic dielectric variables within the whole frequency range, the models are inspected, and the model of which the root-mean-square error is the minimum is used as the optimum model for predicting the milk protein content. Data of the dielectric spectra under unknown characteristic frequency of the milk samples are substituted into the optimum model, so that the protein content of the samples can be calculated. The rapid detection method has the advantages of rapidity in detection, convenience, high precision, simplicity in operation and capability of real-time online detection.

The invention discloses a high-speed strip steel surface image acquiring and image processing apparatus and a method thereof. The input-output interface module (11) of the apparatus comprises a plurality of standard interfaces (111) or a standard network interface (112) for realizing connection with an image sensor, and an I/O interface (113) for realizing signal connection with onsite production and transmitting a signal to a speed signal integration module; the speed signal integration module (12) is used for carrying out frequency division or grouping of a production speed signal, and triggering a camera to acquire an image under speed pulse interval; an image acquisition interface module (13) receives image data output by the image sensor according to the interface protocol of the camera and accepts a signal output by the speed signal integration module; and an image processing module (14) is used for processing the image data transmitted by the image acquisition interface module, completes real-time abnormal image filtration and abnormal area detection functions, and outputs the surface image of abnormal strip steel through a standard network interface (114).

The invention discloses an elevator management system, a method thereof and a matched elevator management mainboard, solving the technical problem that the elevator management system can not realize unification and automation. The invention adopts the technical scheme that the system comprises an interface, a monitoring circuit, a central processing unit, a management program and a central data storage unit, wherein the interface and the monitoring circuit are matched with the driving and operating process of the elevator. The elevator management system is provided with a central control computer in the customer service department of an elevator manufacturer; the central control computer collects an elevator operation state signal along with the central processing unit in the elevator management circuit; after stored, analyzed and processed, the signal is stored to the system database of the central control computer by the network interface circuit according to the level of abnormal information; after analyzed and processed, processing opinions and alarming signals are replied to the central processing unit of the elevator which gives an alarm by the network interface of the system or to the local management mechanism of the elevator using units via the network interface of the system. The invention has the advantages that a several-for-one data transmission mode is carried out by the network interface so as to improve the unified management of elevator safety.

The invention provides a moving target one-dimensional detecting and tracking method for ultra-wideband through-wall radar. According to the method, a moving target behind an obstacle is subjected to real-time accurate one-dimensional detecting and tracking through echo data of a pair of sensors of the ultra-wideband through-wall radar; the problem that echo instability causes difficulty in recognizing and positioning the targets during one-dimensional through-wall detecting is partly solved; meanwhile, the multiple moving targets behind the obstacle can be detected at the same time, and thus, the contradiction between the sensor quantity limit (hardware system size limit) and multi-target detecting capacity of the ultra-wideband through-wall radar can be effectively solved.

The invention discloses a spacecraft ontrack leakage orientation method. According to the method, an 8-array-element L-shaped acoustic emission sensor array, 8 preamplifies and an 8-channel signal collecting and analyzing instrument are adopted, the sensor array is fixed to the inner surface of a spacecraft cabin through coupling agents and electrically communicates with the preamplifies and the 8-channel signal collecting and analyzing instrument. Leakage test is conducted within the range of a circle with the radius being equal to 2 meters through the L-shaped acoustic emission sensor array, when leakage occurs, acoustic emission signals generated by friction between the leaked gas and hole walls of leakage holes are propagated along the device wall continuously, all array elements collect the leaked acoustic emission signals synchronously, amplifying and filtering processing is conducted on the leaked acoustic emission signals, the signals are transmitted to the signal collecting and analyzing instrument, whether leakage occurs or not is judged by detecting changes of energy of the leaked acoustic emission signals, and when it is determined that leakage occurs, beam scanning is conducted on the leakage holes, and the directions of the leakage holes are determined.

The invention relates to an electric real-time adjustment method and an electric real-time adjustment system of a two-dimensional pinhole for a confocal laser scanning microscope. The electric real-time adjustment system comprises an X linear stepping motor, an X driving nut, a Y linear stepping motor, a Y driving nut, an X guide rail, an X sliding block, a Y guide rail, a Y sliding block, an X optocoupler, an X separation blade, a Y optocoupler, a Y separation blade, a light splitting plate, an imaging lens, a CCD (Charge Coupled Device), an electric control unit and the pinhole, wherein the X driving nut, the X sliding block and the X separation blade are mounted in a fastening manner, and the X sliding block is in sliding connection with the X guide rail; the Y driving nut, the Y sliding block and the Y separation blade are mounted in the fastening manner, and the Y sliding block is in sliding connection with the Y guide rail; the X driving nut does a linear motion under the driving of the X linear stepping motor; the Y driving nut does a linear motion under the driving of the Y linear stepping motor; the Y guide rail is fastened on the X sliding block; the pinhole is fastened in the Y sliding block. The electric real-time adjustment method and the electric real-time adjustment system can realize real-time electric adjustment on the two-dimensional direction position of the pinhole, and the influence caused by light spot position changes of laser introduced by other optical components in the system is eliminated.

The invention discloses a smart family data control system for health management. The system comprises a bottom device, a middle control program, a uniform packaging interface, a smart family analyzing control platform, a health file database and a health service center, wherein the bottom device comprises a smart home device, an infrared temperature sensor, a health instrument and a short message; the middle control program comprises a smart family control program, a temperature collecting program, a health instrument control program and a short message receiving and sending control program; the health file database is connected with a smart family risk control platform; the health service center is connected with the smart family risk control platform; the health service center comprises a health knowledge base and a health evaluation system. The smart family data control system for health management can be used for monitoring and detecting the living habit and physical condition of a user in real time, and meanwhile, giving out health evaluation and health guidance suggestion, reminding and timely informing the families of abnormal condition. The smart family data control system is beneficial to timely prevention and maintenance of health of family members.

The invention discloses an electro-optical phase modulator, which comprises an electro-optical phase modulating crystal, a power extraction unit, a modulating power detection unit, a coherent power detection unit, a feedback signal generating unit, an electro-optical phase modulating crystal parallel resonant circuit, a main controller unit and an electro-optical phase modulator shielding shell, wherein the power extraction unit is used for extracting the power and a driving signal of an input modulating signal and the power of a coherent signal of a phase modulator reflected signal; the modulating power detection unit is used for converting the power of the extracted modulating signal into a voltage value; the coherent power detection unit is used for converting the extracted power of the coherent signal into a voltage value; the feedback signal generating unit is used of providing a feedback signal according to signals output by the modulating power detection unit and the coherent power detection unit; the main controller unit is used for acquiring and judging the feedback signal provided by the feedback signal generating unit, controlling the inductance value of the parallel resonant circuit according to a judgment result and automatically changing the resonant frequency point of the phase modulator till the resonant frequency point is matched with a modulating signal frequency; the resonant frequency of the phase modulator is always matched with a modulating signal frequency value output by a modulating power supply; and the electro-optical phase modulator shielding shell is used for protecting each component inside the electro-optical phase modulator and isolating external electromagnetic interference signals.

The invention discloses an electric vehicle and a motor control system thereof. The motor control system comprises a driving module connected with the motor of the electric vehicle to drive the motor;and a main control module, wherein the main control module comprises a control chip and a programmable logic device, the programmable logic device is connected with the driving module and the controlchip is connected with the programmable logic device. Therefore, a hardware protection circuit independent of the control chip is arranged so that the fault detection and protection of the motor control system can be performed quickly in real time and quickly and the safety and the reliability of the motor control system can be improved.

The invention discloses a multi-view stereoscopic vision detection device and method for bridge base nut-screw looseness or fracture. According to the method, multiple micro-cameras are installed in bionic installation racks to form a stereoscopic vision detection system, and each nut-screw group in a circumference can be detected; three-dimensional parameters of nut-screw assembling are obtainedthrough camera coordinate correlation, image preprocessing, image matching, three-dimensional point cloud reconstruction, denoising, etc.; and through algorithm and geometric parameter calculation, the three-dimensional parameters are compared with standard assembling nut-screw data, comparison parameters are obtained, quantitative data of nut-screw looseness or fracture is obtained, and maintenance parameters are provided for technicians. Through the detection device and method, detection precision is high, real-time detection is realized, and cost is low.

A biosensor has one or more field effect transistors each comprising a source region and a drain region separated by a channel region and a gate positioned offset and spaced from the channel region. The biosensor also has one or more molecular probes coupled to at least one of the channel region and the offset gate, the one or more molecular probes configured to mate with at least one target. A method for detection of a target is also disclosed. One or more targets are immobilized as an electric field shunt between an offset gate and a channel region for one or more biosensors. A target measurement value is determined in proportion to a number of the one or more biosensors having the electric field shunt.

The invention relates to an electromagnetic deflection device for electron beam trajectory control and application of the electromagnetic deflection device and belongs to the field of electromagnetism. According to the electromagnetic deflection device for the electron beam trajectory control, an excitation power source is arranged outside a vacuum chamber of an electron beam processing device, a magnetic field generating device is arranged in the vacuum chamber, a magnet yoke is of an enclosed type, iron cores are symmetrically distributed in the magnet yoke and fixed on the magnet yoke, hollow coils are fixed on the iron cores, parts are placed in an air gap space between the iron cores, the parts are arranged under an electronic gun of the electron beam processing device, the magnetic field generating device is connected with the excitation power source through a through-wall plug which is used for coil tap, and a probe of a Hall magnetic detector is arranged in the air gap space and connected with a processing display unit arranged outside the vacuum chamber through the through-wall plug. The electromagnetic deflection device for the electron beam trajectory control is used for controlling motion trajectory of electro beams so as to meet the processing requirement of parts with special shapes, can detect and adjust a generated magnetic field in real time, enables the strength of the magnetic field to meet the processing requirement, can be directly used with an existing electron beam processing device in an integrated mode through the through-wall plug, and is wide in application range and high in economic value.

The invention discloses a dust detection and monitoring system for a factory building, which comprises an electrostatic generator, wherein the electrostatic rod of the electrostatic generator is arranged in a filter paper cover; one or more pressure sensors are arranged at the bottom of the filter paper cover, and are used for collecting the weight value of the filter paper cover, and sending the weight signal to a signal amplifier; the signal amplifier is used for amplifying the weight signal, and sending the amplified weight signal to an AD expansion module; the AD expansion module is used for converting the amplified analog signal into a digital signal, and sending the digital signal to a PLC; the PLC is used for controlling on/off of the electrostatic generator, a dust remover, an alarm and an indicating lamp through a relay. The dust detection and monitoring system can be used for detecting and monitoring dust concentration in the factory building in a real-time manner, and can remove dust automatically once the dust concentration exceeds standard, thereby keeping the dust concentration in the factory building in a specified range.

A multifunctional basin-type support comprises a support body, a height adjusting system and a force measuring system; the height adjusting system comprises an adjusting seal plate, a filling gasket plate and an external high-pressure filling device, wherein a sealed space is formed between the adjusting seal plate and the filling gasket plate, a filling pipe on the filling gasket plate leads to the sealed space, an inlet of the filling pipe is communicated with a height adjusting pipe interface on the outside of the base plate of the support, and a high-pressure filling device. The force measuring system comprises a pressure-bearing elastomer enclosed at the bottom of the filling pad and a fiber Bragg grating force measuring element in contact with the pressure-bearing elastomer. The outer end of the fiber Bragg grating force measuring element is connected with a detecting device by a signal line. A method for installing and measuring force and adjusting height comprises a mounting support, a measuring force, adjusting height, removing high-pressure filling device and monitoring. The multi-functional basin-type support is provided with a height adjustment system and a force measuring system, and can realize stepless height adjustment by filling the filling material. The construction is convenient, and the height adjustment method is simple and reliable. The vertical bearing capacity of the bearing can be monitored accurately, continuously and effectively by the force measuring system.

The invention provides an indoor formaldehyde purification method, which relates to the technical field of formaldehyde purification. The indoor formaldehyde purification device includes a base, a second treatment box is fixedly installed on the top of the base, a first treatment box is integrally formed on the left side of the second treatment box, an air intake pipe is arranged on the left side of the first treatment box, and the first treatment box is integrally formed on the left side of the second treatment box. A suction motor is fixedly installed in the interior of a processing box through a fixing block. The indoor formaldehyde purification device, through the cooperation of the first treatment box, the first filter plate, the second filter plate, the second treatment box, the ultraviolet lamp, the photocatalyst reaction plate, the third treatment box, the liquid medicine tank, the water pump and the spray disc, The indoor formaldehyde can be purified through three steps of physical adsorption, photocatalyst decomposition and chemical removal successively. Compared with the traditional indoor formaldehyde purification device that uses a single method to remove formaldehyde, the combination of the three purification methods enables formaldehyde to be removed more thoroughly. , can effectively avoid the residue of formaldehyde, the purification effect is good.

The invention discloses a biomass rapid pyrolysis device. The biomass rapid pyrolysis device comprises a smashing chamber, a pyrolysis chamber and a machine case; the smashing chamber is fixed at the upper end of the machine case; a feeding box is fixed at the upper end of the smashing chamber; a smashing roller is arranged in the middle of the internal part of the smashing chamber; driving shafts are fixed at the two ends of the smashing roller; the driving shafts are connected with the smashing chamber through fixed rods; a telescopic door is fixed at the lower end of the internal part of the smashing chamber; the pyrolysis chamber is arranged at the upper end of the internal part of the machine case, and the pyrolysis chamber is arranged at the lower end of the smashing chamber; a heating rod is fixed at one end of the internal part of the pyrolysis chamber, and an HSM temperature sensor is fixed at the other end of the internal part of the pyrolysis chamber; a gas storage tank is arranged on one side of the pyrolysis chamber. A mode for performing separated preservation on products is adopted, the pyrolysis chamber, the gas storage tank and a liquid storage pool are arranged, and solid, gas and liquid products generated by biomass rapid pyrolysis can be subjected to separated preservation, so that the purity of the products is guaranteed and convenience is provided for the subsequent work.

The invention discloses a Beidou positioning-based intelligent water quality detecting robot. The robot comprises a control module, a turbidity sensor, a dissolved oxygen sensor, a PH (Potential of Hydrogen) value sensor, a temperature sensor, a nine-axis attitude sensor, an NRF24L01 wireless communicator, a water quality electrolyzer, a camera, an ultrasonic module, a Bluetooth module and a positioning module. The robot has the beneficial effects that the robot is low in cost, easy to operate, complete in functions and durable in use; the wireless remote control can be realized; the positioncoordinate recording and the position sharing are realized through a Beidou satellite; meanwhile, the robot is high in automation degree and has the various functions of autonomously planning paths, hierarchically detecting and analyzing data and timely uploading and keeping records; and the detection data can be customized at the same time.

The invention discloses an automatic temperature measurement and early warning device for power equipment in a substation, which comprises a temperature acquisition module, a platform server, a mobile terminal and an early warning robot, wherein the early warning robot comprises a wheeled robot body, a main controller, a navigation system, a video navigation probe, a fire extinguishing device and a power device; the fire extinguishing device comprises a powder fire extinguisher; the top end of the powder fire extinguisher is provided with a cover plate and a motor; the cover plate is provided with an electromagnetic valve; one end, far away from the motor, of a transmission shaft is provided with a supporting frame; a fire extinguishing nozzle is arranged on the supporting frame; the powder fire extinguisher is communicated with the fire extinguishing nozzle via a pipeline connected with the electromagnetic valve; and the supporting frame is also provided with an adjustment device for adjusting the height of the fire extinguishing nozzle. A turntable is also included, and the turntable is provided with an opening matched with the pipeline. The device of the invention has the beneficial effects that the accurate position of the temperature sensor can be quickly judged, and the fire safety conditions of the power equipment in the substation can be effectively improved.

The invention relates to a numerical control (NC) machining simulation device based on a triangular binary tree model. The simulation device is composed of a database module, an NC code editor module, and a machining process simulation module. First, tool information, NC code base and machining parameters in a database are integrated to generate NC codes for part machining; then, the machining area under each NC code is determined, and parts are machined according to different distances between viewpoints and surface characteristic conditions of a free surface; and finally, machined work pieces are rendered. The NC machining simulation device has the characteristics of advanced design concept, practical functions and good human-computer interaction. The machining process of parts can be displayed continuously and dynamically based on the conversion of viewpoint distance and the change of surface characteristics, and thus, the purpose of real-time and authentic simulation is achieved. Moreover, collision interference between objects can be detected in the machining process.

The present invention discloses a transmission case end face large-size form and location tolerance detection device and method based on a checkerboard. A checkerboard standard board movement and support portion is configured to move and support a checkerboard standard board, a dual-camera image collection portion controls cameras to collect images with a tractor transmission case end face location pin hole and the part of the checkerboard standard board, an image processing portion analyzes and processes the images collected by the two cameras; a checkerboard movement controller controls thecheckerboard standard board to move back and forth along a guide rail to drive the checkerboard standard board to applied to the transmission case end face and control the cameras to collect images atthe same time so as to perform processing and extraction of a feature value of the collected images. The transmission case end face large-size form and location tolerance detection device is simple in structure, achieves online detection of the transmission case end ace location pin hole form and location tolerance aiming at the problems that the large size form and location tolerance is difficult to detect and online detection cannot be achieved, and improves the transmission case detection efficiency and quality.

The invention discloses a multi-parameter collection and detection device for landfill gas, which comprises a gas collection module, a gas detection module, and a gas recovery module. The gas collection module includes a shaft tube, a six-port ventilation seat, a suction tube, a suction head, a dryer, a filter, a first air pump, and a gas storage tank; a threaded joint is arranged on the bottom end of the shaft tube; the six-port ventilation seat is connected to the shaft tube; the suction tube is arranged in the shaft tube; the dryer is connected to the top of the suction tube; the filter isconnected above the dryer; the first air pump is connected to the filter; the gas storage tank is connected above the first air pump; a photoionization sensor is arranged in the gas storage tank; andthe gas detection module includes a first gas flow meter, a second air pump, a detection chamber, and a detection terminal connected by wireless. The multi-parameter collection and detection device for the landfill gas, which can be economical, efficient, rapid, and engineering-scale applied, meets actual usage requirements.