609 results about "Dark room" patented technology

The invention discloses an electronic communication cable detection device in the technical field of cable detection, and the device comprises a workbench, an insulation tester and a dielectric loss tester, the workbench is provided with a darkroom, the axial side wall of the darkroom is symmetrically provided with ports, the ports are internally and fixedly connected with window shades, and the interior of the darkroom is fixedly connected with a defect detection assembly. A roller assembly is fixedly connected to the outer side wall of the darkroom, multi-stage clamping assemblies located on the two sides of the darkroom are symmetrically and fixedly connected to the top of the workbench, a controller is fixedly connected to the workbench, and the flaw detection assembly, the roller assembly, the multi-stage clamping assemblies, the insulation tester and the dielectric loss tester are all in signal connection with the controller. According to the invention, through multi-stage screw-in self-adaption to cables with different diameter specifications, the clamping stability is ensured, and the pressure sensor cooperates with the electrical performance detection instrument and the camera to integrate various detections, so that the detection cost is reduced, the detection accuracy is improved, and the cable to be detected is prevented from being damaged in the detection process.

The invention discloses a satellite loop simulation test system and method, electronic equipment and a program product. The satellite loop simulation test system comprises a darkroom system used for simulating an electromagnetic propagation environment between a satellite and a terminal; the turntable system is deployed in the darkroom system and is used for controlling the terminal to move in the darkroom system according to the input terminal movement track; the communication system is used for sending a downlink test signal to the terminal and receiving an uplink test signal fed back by the terminal according to the input channel simulation file, and the uplink test signal and the downlink test signal are used for determining a test result of the satellite loop simulation test; and the timing system is used for generating a unified time reference for the turntable system and the communication system, and the turntable system and the communication system operate based on the time reference. The technical problem of how to construct a darkroom test environment in a low-orbit broadband satellite high-speed motion scene so as to verify the end-to-end communication performance of a terminal under a real-time tracking satellite is solved.

The invention discloses a multi-mode perovskite and laminated cell comprehensive test system and method. The system comprises a darkroom, a test platform, an LED light source module, a CCD camera, a laser, an adjustable constant current source, an electronic load and an upper computer. The darkroom is used for shielding external ambient light and providing a dark test environment; the test platform is installed in the darkroom, and a to-be-tested battery is placed on the test platform; the LED light source module is used for providing a test light source; the CCD camera is used for capturing an optical signal generated by the battery to be tested in the testing process; the laser is used for emitting a laser beam to excite the to-be-detected battery to generate a specific optical response; the adjustable constant current source and the electronic load module can be electrically connected with a to-be-tested battery on the test platform, the adjustable constant current source is used for supplying current to the to-be-tested battery, and the electronic load module is used for simulating different load conditions; and the upper computer is used for realizing intelligent control of the test process and processing and display of test data.

The utility model provides a quick detection device for quick type biological indicators, which comprises a shell, a darkroom and a control system, the darkroom and the control system are arranged in the shell, a camera component and a culture room corresponding to the camera component are arranged in the darkroom, a plurality of detection holes for placing the biological indicators are arranged in the culture room, and the detection holes are communicated with the control system. An ultraviolet light source is arranged in the detection hole, a mounting hole corresponding to the detection hole is formed in the cover plate above the darkroom, and an opening is formed in the position, corresponding to the mounting hole, of the shell. According to the utility model, the super-definition starlight CCD camera is adopted to detect fluorescence generated in the biological indicator, the detection speed is high, the accuracy is high, and real-time monitoring and alarming can be realized.

The invention relates to the field of wireless communication equipment testing, in particular to a movable radiation stray testing system for a millimeter wave radar, which comprises a movable testing darkroom, a to-be-tested object bearing table, a rotation adjusting module, a temperature adjusting module, an antenna switching module and a wave absorbing module, the rotation adjusting module is used for driving a to-be-tested sample placed on the to-be-tested object bearing table to rotate, the temperature adjusting module is used for simulating a limit temperature range required by the to-be-tested sample, the antenna switching module is provided with a plurality of test antennas, and the antenna switching module is used for switching different test antennas. The target test antenna is arranged in the test space, one end of the target test antenna is located in the test space, the test sample is tested, the target test antenna is any one of the test antennas, and the wave absorbing module is arranged on the side wall of the test space and used for absorbing electromagnetic waves. The millimeter wave radar radiation stray test efficiency can be improved, and the test cost can be reduced.

The invention provides an intelligent cockpit single Beidou test device and test method. The test device comprises a microwave darkroom, a rotary table and an arc guide rail. The arc guide rail is vertically arranged in the anechoic chamber, the rotary table is arranged on the bottom wall of the anechoic chamber in parallel, and the circle center of the arc guide rail coincides with the circle center of the rotary table; the 0-degree elevation angle of the arc guide rail is flush with the upper surface of the rotary table; the 90-degree elevation angle is located right above the test vehicle; a sliding antenna is connected to the arc guide rail in a sliding manner, and the sliding antenna is fixed in a short time every 5-15 degrees in the sliding process; and a wave-absorbing material is laid on the inner wall of the microwave darkroom. According to the invention, the adaptability of the intelligent cabin to Beidou signals in different geographical environments can be comprehensively tested; the single Beidou performance of the intelligent cockpit is accurately verified, reliable operation of the single Beidou navigation function in the intelligent cockpit is ensured, accurate route guidance and early warning information are provided, accurate position information can be provided in time in an emergency, rescue work is assisted, and driving safety is ensured.

The invention relates to the field of automobile electronic testing technology and equipment, and discloses a vehicle-mounted camera imaging quality testing method and device suitable for a rain and fog scene, and the method comprises the steps: installing a to-be-tested camera module in a rain and fog environment cabin, setting the spectrum and illumination of a top natural illumination simulation system, and simulating the illumination at different time periods; selecting a test target plate in the darkroom; starting an automatic centering module to align the optical axis with the standard plate reference; rain and fog parameters are set through the environment control host, the rain and fog supply system is started to simulate different levels of rain and fog environments, and the raindrop particle size, concentration, dripping speed, fog visibility and fogdrop particle size are dynamically regulated and controlled; shooting a target plate graph card, extracting characteristic parameters by an image analysis module, performing quantitative analysis, and generating an evaluation report, so as to solve the technical problem of singleness of rain and fog scene environment simulation in the prior art.

The utility model relates to a control device for a microwave anechoic chamber test system. Comprising a shielding box which is a sealed cavity provided with a cover plate, and the shielding box is provided with a power supply socket, a data socket and an optical fiber coupler; a control circuit board, an AC-DC power supply module, a data optical fiber transceiver and other modules are installed in the shielding box. A plurality of motor control units, a power supply interface and a communication interface are integrated on the control circuit board, and a first output end of the AC-DC power supply module is connected with the control board and is used for supplying power to the control board; one end of the data optical fiber transceiver is electrically connected with the optical fiber coupler, and the other end is electrically connected with the communication interface for converting the signal into an optical signal and outputting the optical signal. The control circuit board is placed in the shielding box, so that the size of the rotary table or antenna tower equipment is reduced, and the electromagnetic interference risk of a motor and a darkroom environment is reduced; the control circuit board integrates the servo motor control unit and the stepping motor control unit for modular design, serves as an independent unit of the darkroom test system, and is high in universality.

The invention belongs to the technical field of radar wave-absorbing material testing, and provides a high and low temperature controllable radar wave-absorbing material reflectivity testing device and method, and the device comprises a microwave darkroom, a detection mechanism and a tested object placement mechanism which are arranged in the microwave darkroom, and a temperature control mechanism; the detection mechanism comprises a first bracket arranged in the microwave darkroom, and a transmitting antenna and a receiving antenna which are arranged on the first bracket; the tested object placing mechanism comprises a second bracket arranged in the microwave darkroom and a cover body arranged on the second bracket and used for placing a tested object; the temperature control mechanism comprises a temperature control box, and an air inlet pipe and an air return pipe which are connected with the temperature control box; the ends, away from the temperature control box, of the air inlet pipe and the air return pipe are communicated with the interior of the cover body, the air quantity and the air speed entering the cover body are controlled through the temperature control box, the temperature and the humidity in the cover body meet preset requirements, the real environment can be simulated, and the heating uniformity of a tested material can be guaranteed through the arrangement of the cover body.

A comprehensive detection device for a radar seeker relates to the technical field of measurement and control, a target angular displacement forming device (1) is arranged on the right side of the ground of a microwave anechoic chamber (3), the target angular displacement forming device is connected with a PXI system in a measurement and control cabinet (5) located on the outer side of the microwave anechoic chamber through a serial port bus, and a window is arranged on the wall of the left side of the microwave anechoic chamber. A mounting clamp (16) on the sliding clamping table (4) clamps the radar seeker to be tested and drives the radar seeker to be tested to enter the microwave darkroom from the window, and the radar seeker to be tested is connected with a high-frequency unit and a signal switching unit in the measurement and control cabinet through cables to test a receiving loop; the device has the advantages that the size is small, the assembly is convenient and fast, the shielding darkroom can be used for accurate measurement in an inner field, the device can be portable and used in an outer field, and the depth of the single-pulse Doppler radar seeker can be detected.

The invention provides a low-scattering carrier for darkroom background level evaluation test, and relates to the technical field of target far-field electromagnetic scattering characteristic test, the low-scattering carrier is a hollow structure formed by seamless connection of an upper surface and a lower surface; the upper surface comprises a plurality of smooth curved surfaces with continuous curvatures, and the lower surface is a smooth plane; the forward direction of the low-scattering carrier is a sharp needle-shaped tip; and the lower surface is provided with a circular truncated cone hole for embedding a two-dimensional rotating top at the top end of the metal bracket and a connecting structure for connecting and fixing the two-dimensional rotating top. The forward direction of the low-scattering carrier provided by the invention is a sharp needle-shaped tip, so that the low-scattering carrier can be ensured to have a low-scattering characteristic in a relatively wide angular domain range in the forward direction, strong RCS scattering of the two-dimensional rotating top can be shielded, the RCS of the metal bracket can be measured more accurately, and a more accurate darkroom background level can be further obtained.

The utility model discloses modularized hermetia illucens adult breeding and spawning equipment, and belongs to the field of hermetia illucens breeding equipment. The utility model discloses modularized hermetia illucens adult breeding and spawning equipment. The interior of the shell is divided into a darkroom and a bright room. A plurality of breeding boxes are stacked in the darkroom; the insect trapping device is arranged in the bright room and used for guiding adult hermetia illucens; the adult conduit is fixedly connected to the side wall of the bright room and is communicated with the dark room; the shifting piece is mounted on the inner wall of the adult conduit; the egg collecting piece is arranged in the bright chamber and used for providing a position for spawning of hermetia illucens; the egg collecting piece comprises a mounting plate which is fixedly connected to the side wall of the bright room; the plurality of spawning plates are fixedly connected to the mounting plate at equal intervals; the multiple collecting rollers are installed on the top wall of the spawning plate in a rolling mode. The modularized hermetia illucens adult breeding and spawning equipment has the beneficial effects that eggs can be automatically cleaned and collected, and the eggs do not need to be manually collected.

The invention relates to a construction method of an acousto-optic catalytic reactor for removing tetracycline through photoactive MOF (Metal Organic Framework). A photoactive MOF material is synthesized through a solvothermal method; adding the synthesized MOF material and a tetracycline aqueous solution into a quartz reactor, and stirring for 30 minutes in a darkroom; starting circulating condensate water, a magnetic stirrer, ultrasonic waves and a light source, and carrying out acousto-optic catalysis to remove tetracycline reaction; sampling at certain time intervals, filtering, testing, and calculating the removal efficiency of tetracycline. According to the acousto-optic catalytic reactor constructed by the invention, the MOF material has excellent light absorption and photo-generated charge splitting performance, and ultrasonic catalysis is cooperated, so that the contact between MOF and tetracycline molecules is enhanced, and efficient removal of tetracycline is realized. The acousto-optic catalytic reactor disclosed by the invention is low in cost, simple in structure, high in efficiency and high in speed, and has good stability and repeatability. According to the scheme, the problem of low tetracycline removal efficiency is solved, an efficient and environment-friendly solution is provided for environmental protection and ecological restoration, and the method has wide application prospects.

The embodiment of the invention discloses a calibration test device for a semi-physical simulation darkroom array antenna and a feed system. The calibration test device is used for carrying out calibration test on the array antenna and the feed system. In one specific embodiment, the calibration test device comprises a calibration computer, a vector network analyzer, a calibration case, a three-axis turntable, a tuner, a signal source and a simulation darkroom. According to the method, the problem of calibration work of the array antenna and the feed system of the semi-physical simulation radio frequency darkroom under the low-frequency condition is solved, design experience is provided for construction of the low-frequency simulation darkroom, and preconditions are provided for semi-physical simulation test application requirements developed in a laboratory.

The invention provides a phased-array antenna amplitude phase calibration method, which is realized by test data of two sets of test systems, each of the two sets of test systems comprises a tested antenna, a phase-stable cable, a vector network, a ground detector and a PC (Personal Computer), and the first set of test system further comprises the tested antenna, a transfer tool, a test tool, a test antenna and an antenna packaging box, a transfer tool is placed in the antenna packaging box, a tested antenna and a test tool are installed on the transfer tool, and a test antenna is installed above the test tool. The method has the beneficial effects that the test cost is saved, the darkroom test time and frequency are greatly shortened, and the total test cost is predicted to be reduced by 30%; the test period is shortened, the darkroom test time and frequency are greatly shortened, and the overall test period is expected to be reduced by 30%.

The invention belongs to the technical field of optical imaging and automatic detection, and particularly relates to a multispectral polarization imaging automatic scanning system. According to the system, through combination of multispectral polarization imaging and an AI algorithm, rapid positioning and classification of a target are realized, and the precision and efficiency of trace detection and material evidence identification are improved on the premise that a sample is not damaged. The multispectral polarization imaging automatic scanning system comprises a single-axis detachable slide rail, a polarization camera, a multispectral light source module, a small darkroom with an open bottom, a control panel and a main control computer. The two ends of the single-axis detachable sliding rail are supported by the adjustable tripod, the portable small darkroom is fixed below the movable end of the sliding rail through mechanical connection, the polarization camera and the multispectral light source are installed in the darkroom, and the darkroom is driven by the stepping motor to conduct single-axis scanning motion. The multispectral light source module supports switching of more than six wave bands within the wave band of 450-950 nm, wave band switching can be completed within 5 ms, and stable illumination intensity (0-500 lux) is provided. The process provided by the invention comprises the steps of equipment deployment, scanning path configuration, light source regulation and control, image acquisition, data analysis and the like, and a high-precision detection report can be quickly generated in various scenes. Through cooperative work of the control panel and the main control computer, the system realizes automatic image acquisition, target detection and report generation, is widely applied to the fields of trace detection, material evidence identification, industrial quality inspection and the like, and has the characteristics of automation, high efficiency and high precision.

The embodiment of the invention discloses a glare collaborative test method and device for a self-adaptive high beam and electronic equipment. The method comprises the steps of firstly obtaining test data of a target vehicle in a site test, performing a darkroom light test on the target vehicle based on bus data in the test data to obtain light shape data corresponding to each target moment, and then determining a target illumination range corresponding to each light shape data according to inertial navigation data in the test data, and finally, determining a glare test result of the self-adaptive high beam according to a comparison result of the target illumination range and the theoretical glare affected range which are paired in pairs. Test data obtained in a field test are recharged into a darkroom light test scene through data, and a glare collaborative test of the adaptive high beam is performed, so that a real road driving condition environment can be simulated, a target illumination range of each target moment can be accurately and efficiently determined in the darkroom test environment, and the test efficiency is improved. And the accuracy and the efficiency of the adaptive high beam glare test are improved.

The invention relates to the technical field of image sensor detection, solves the technical problem that a traditional method cannot perform multi-dimensional quality detection on an image sensor, and particularly relates to an image sensor quality detection method, device and system. The detection method comprises the following steps: constructing an image acquisition environment which keeps consistent illumination conditions when acquiring sequence images in a darkroom environment based on a sequence image acquisition device; setting exposure time, and acquiring a plurality of sequence images with different gray levels, which are output by the image sensor under different illumination intensities, in an acquisition environment; performing multi-dimensional detection on the sequence image and outputting a quality detection result; and determining whether the image sensor has defects according to the quality detection result. According to the invention, multi-dimensional detection can be carried out on whether the image sensor has defects or not, so that the image capturing performance of the image sensor under different conditions is accurately evaluated, the product performance is improved, and the image quality is guaranteed.

The utility model relates to the technical field of electronic darkrooms, in particular to an automobile electronic darkroom based on radiation emission and a radiation anti-interference test, which comprises a metal plate frame, a shielding shell is laid on the outer side of the metal plate frame, an observation room is arranged on one side of the shielding shell, and the metal plate frame is arranged on the observation room. A plurality of wave-absorbing sponges are uniformly and fixedly mounted on the inner wall of the metal plate frame, ferrites are mounted on the wave-absorbing sponges, a test antenna is mounted on a bottom plate in the metal plate frame, a placement table is mounted on one side of the test antenna, a shielding door is movably mounted on the shielding shell, and a fastening mechanism is arranged on the shielding door. According to the shielding door, the closed shielding door can be secondarily fastened, the shielding door which is used for a long time is prevented from loosening, the closing tightness of the shielding door is improved, meanwhile, the sealing ring is further installed on the shielding door, the sealing effect can be further improved, and electromagnetic wave leakage is avoided.

The automatic feeding and discharging system is characterized in that a manipulator drives a paw to take or send a forge piece onto a heat treatment frame body on a rotary table device under the guidance of a 3D vision device, and when one side of the heat treatment frame body is filled with the forge piece or the forge piece is taken out, the rotary table device rotates to enable the other side of the heat treatment frame body to rotate to one side of the paw; and the paws repeat the work until all the work is completed. The system can be matched with an RGV, a carrier and the like, so that when the forge piece is subjected to a series of post-treatment processes such as solid solution, aging, cleaning, permeation and darkroom imaging, the post-treatment efficiency of the forge piece can be greatly improved, the labor intensity of workers is reduced, the safety of manual production is improved, and meanwhile, the product quality is improved.

The invention relates to the field of electromagnetic field technology and radio frequency signal testing, in particular to a radio frequency standard field generation system and method based on near-field beam forming, and the system comprises a control unit, a radio frequency signal generation unit, a radio frequency field control unit and a broadband radiation antenna array. The control unit carries a near-field electromagnetic wave synthesis mathematical model and is used for receiving a target field type setting requirement and calculating excitation amplitude and injection compensation phase required by each radiation unit configured in the broadband radiation antenna array; the radio frequency signal generation unit comprises a pulse modulation laser source and a plurality of semiconductor radiation units and is used for generating high-power programmable radio frequency signals; the radio frequency field control unit comprises an optical delay line and an FPGA matrix and is used for performing amplitude and phase regulation and control on the high-power programmable radio frequency signal output by the radio frequency signal generation unit; and the broadband radiation antenna array is used for receiving the regulated radio frequency signal and radiating the regulated radio frequency signal to the near-field space of the darkroom, and a target field pattern is formed through multi-unit electric field vector superposition.

The utility model provides a chemiluminescence immunoassay analyzer. The chemiluminescence immunoassay analyzer comprises a shell, a heating module, a bearing jig for placing a kit and a first driving module for driving the bearing jig to rotate are arranged in the shell; a plurality of heating modules are arranged at the top of the bearing jig; the kit is placed at the top of the heating module; a code scanning device used for scanning the bar code of the kit, the stirring and transferring device used for stirring analysis liquid in the kit and an analysis device used for detecting the kit are sequentially arranged on the outer side wall of the bearing jig in a surrounding mode in the anticlockwise direction; wherein a darkroom device for providing an environment required in an analysis process and a second driving module for controlling the darkroom device are arranged in the analysis device. The cost of research, development, manufacturing, operation and maintenance is reduced, use scenes are diversified, and reagent waste is avoided.

The invention relates to the field of satellite navigation, and discloses a satellite receiving terminal-oriented babysbreath microwave anechoic chamber and outdoor environment collaborative test system and method, and the system comprises a babysbreath microwave anechoic chamber, an unmanned plane platform, and a standard satellite positioning terminal disposed in the babysbreath microwave anechoic chamber. The tested satellite receiving terminal and the carrier are arranged in an outdoor environment, the upper computer is arranged outside the babysbreath microwave darkroom, and the satellite navigation signal simulation source and the GNSS time service module are arranged in the babysbreath microwave darkroom and on the unmanned aerial vehicle platform. According to a parameter instruction issued by the upper computer, the satellite navigation signal simulation sources of the babysbreath microwave anechoic chamber and the unmanned aerial vehicle platform generate satellite navigation signals used for testing a satellite receiving terminal, and the satellite navigation signals are broadcasted through respective navigation antennas. According to the invention, an indoor and outdoor collaborative test environment is effectively constructed, the test requirements of large equipment under the condition of no large darkroom are met, and the comprehensiveness and scientific rationality of test results are ensured.

The present application belongs to the application field of nondestructive testing technology for ceramic parts, and particularly relates to a nondestructive testing method for cracks and chipping of ceramic nozzles, comprising: cleaning grease, paint, and coating on the surface of the ceramic parts, and drying; completely immersing the ceramic parts in fluorescent penetrant liquid for a certain time; taking the ceramic parts out of the fluorescent penetrant liquid and dripping them for a certain time; removing the fluorescent penetrant liquid on the surface of the ceramic parts by a water spray method, and drying; placing the ceramic parts in a dark room and irradiating them with a black light lamp, and observing the surface of the ceramic parts under irradiation; when there are luminous lines on the surface of the ceramic parts, the ceramic parts have cracks, and when there are block-shaped spots on the surface of the ceramic parts, the ceramic parts have chipping. The crack detection of ceramic products in the present application adopts a low-sensitivity fluorescent penetrant detection method, which effectively solves the problem of identifying defective products such as chipping and cracks in ceramic products, and at the same time provides a reference basis for quality control of other types of ceramic products.

The invention discloses a spectral data correction method, a substance analysis device and a digital twin system of the substance analysis device, and belongs to the technical field of lunar surface exploration. The device integrates multiple functions of element acquisition, spectral analysis, temperature compensation, weight measurement, high-definition image acquisition, three-dimensional shape reconstruction and the like, and by designing a special darkroom structure and a temperature control module, the influence of the extreme temperature of the lunar surface and stray light on the measurement precision is effectively avoided. The device adopts a Raman spectrum sensor and an infrared spectrum sensor to realize substance component detection, and corrects measurement errors caused by temperature fluctuation in real time through multispectral data preprocessing and a nonlinear temperature compensation model. Meanwhile, the multi-view image acquisition and high-density morphology reconstruction technology ensures the accurate restoration of the surface morphology and color information of the sample; the digital twin subsystem realizes remote monitoring and dynamic optimization through real-time data synchronization and virtual simulation, and improves the detection efficiency and decision precision.

The invention discloses a black-out cloth light leakage detection method and a black-out cloth light leakage detection mechanism, which do not need a darkroom environment and manual light leakage judgment, thereby liberating workers to work in a special darkroom environment, realizing full-automatic detection and automatic labeling, and being safe, reliable and easy to popularize and use. The black-out cloth light leakage detection method comprises the following steps: irradiating the front surface of a fabric by using a light source emitting invisible light; shooting the back surface of the fabric by using a camera with a visible light filter; and identifying an image obtained by shooting, and identifying a light leakage area in the image.

The invention provides a system transceiving isolation protection time testing method and system. The method comprises the following steps: transmitting radiation signals of transmitting equipment directly correspond to pulse signals of a system; a transmitting antenna of transmitting equipment is taken down, and a transmitting radiation signal is input to a high-power load through a coupler by a radio frequency cable; after the emission radiation signal is attenuated through a low-power coupling output end of the coupler, the emission radiation signal is radiated to a receiving antenna of emission equipment through a radio frequency cable and a directional radiation antenna; setting a distance R between the directional radiation antenna and the receiving antenna; and adjusting the receiving and transmitting isolation protection time of the system until the signal detection indication pulse signal cannot be received in a low time sequence period of the system. According to the invention, the limitation that the system transceiving isolation protection time index test work can only be carried out in a darkroom is solved, so that the index can be tested in open areas such as an outfield parking apron or a runway, and the development and production efficiency of the system is effectively improved.

The invention discloses a lifting mechanism of a ground radar antenna and a working method thereof, and relates to the technical field of radar antennae, the lifting mechanism comprises a first driving mechanism, a turnover arm and a second driving mechanism; one end of the radar antenna is hinged to an antenna pedestal, and the antenna pedestal is fixedly connected to a working platform of a carrier vehicle; the first driving mechanism and the second driving mechanism are linear reciprocating motion mechanisms, one end of the first driving mechanism is hinged to a radar antenna, the other end of the first driving mechanism is hinged to one end of the overturning arm and one end of the second driving mechanism, the other end of the overturning arm is hinged to the radar antenna, and the radar antenna is hinged to the overturning arm. And the other end of the second driving mechanism is hinged with the antenna pedestal. The device has the advantages that the lifting angle of the radar antenna is increased by adopting the lifting mechanism combining the first driving mechanism and the second driving mechanism, so that the ground radar antenna can be simply and quickly subjected to darkroom testing.

The invention discloses an LED dead pixel detection method, device and equipment based on laser reflection and a medium, and relates to the technical field of LED lamp detection, and the method comprises the steps: controlling a laser light source to irradiate a to-be-detected LED lamp; collecting a reflected light signal; preprocessing the reflected light signal to obtain an input signal; and judging whether the LED lamp is normal based on the input signal. According to the invention, laser reflection detection is adopted to replace traditional optical imaging, the monochromaticity and directivity of laser are utilized to overcome ambient light interference, and a darkroom or complex filtering is not needed. Meanwhile, the combination of the laser light source and the photoelectric sensor significantly reduces the cost of the system, and avoids the use of a high-resolution camera. The laser can focus a micron-sized light spot, and the sub-pixel-level micro structure abnormity can be identified with high precision by analyzing the energy change of a reflected light signal. More importantly, according to the method, non-luminous defects such as packaging cracks and colloid stripping can be synchronously detected by capturing the reflection characteristics of the physical structure of the LED instead of depending on the luminous state of the LED, so that the defect detection accuracy is effectively improved.

The embodiment of the invention discloses an air interface testing device and an air interface testing method, and belongs to the technical field of communication. The air interface testing device comprises a testing module which comprises a microwave darkroom and is used for providing a testing environment for equipment to be tested; the integrated heat preservation rotary table module is arranged in the microwave darkroom and comprises an adjustable cover body structure, and the cover body structure is used for maintaining the environment state of the equipment to be tested; and the environment control module is arranged outside the microwave darkroom, is connected with the integrated heat preservation turntable module through a heat preservation pipeline to form a three-axis structure, and is used for cooperating with the integrated heat preservation turntable module to adjust the test environment of the to-be-tested equipment. According to the embodiment of the invention, the environment control module and the integrated thermal insulation turntable module are designed in an integrated manner, so that on the premise of ensuring the functions of each module, the test freedom degree is improved, the test scene is expanded, and the air interface test of the to-be-tested equipment under the multi-environment condition can be realized.