495 results about "Energy loss" patented technology

The invention belongs to the technical field of perovskite solar cells, and provides a dibenzofuranyl carbazole derivative and a preparation method and application thereof.The dibenzofuranyl carbazole derivative takes dibenzofuranyl carbazole as a functional group, molecular ordered accumulation is optimized, and hole mobility is remarkably improved; an alkyl carbon chain is used as a linking group, a phosphate group at the tail end is an anchoring group, perovskite interface defects can be effectively passivated, the energy loss at the interface can be reduced, single molecule self-assembly can be realized, the cell performance can be improved, and as a self-assembly monomolecular layer hole transport material, a perovskite solar cell has relatively high photoelectric conversion efficiency, and the photoelectric conversion efficiency can be improved. The service life is long; and the stability is high.

The invention discloses a laser-assisted helium arc penetration fusion welding method, and belongs to the technical field of welding. The problems that according to an existing paraxial laser-electric arc composite structure, the welding track is difficult to control, the energy coupling efficiency is low due to laser energy loss, and weld joint partial melting and undercut defects are caused due to uneven distribution of a welding temperature field due to a generated asymmetric heat source are solved. The welding method comprises the steps of 1, pretreatment; 2, after being focused by a focus lens, the laser is divided into three laser beams through a spectroscope, then the three laser beams are converged again through a plurality of reflectors, three fan-shaped light spots are formed on the surface of the to-be-welded plate after convergence, and finally the focal plane position of the laser is adjusted to be located on the surface of the to-be-welded plate; 3, setting welding current and arc voltage; and fourthly, laser is used for assisting helium arc penetration fusion welding. The method is used for laser-assisted helium arc penetration fusion welding.

Disclosed in the present invention are a scanning box device and an electron accelerator, the electron accelerator comprising an accelerating tube and a deflection coil; the scanning box device comprising a scanning chamber and a scanning box, wherein the scanning chamber is sealingly connected to the scanning box; the scanning chamber is arranged above the scanning box; the accelerating tube is arranged above the scanning chamber; the deflection coil is arranged on the outer side of the scanning chamber; and the scanning chamber is made of a non-metallic material. The present invention can prevent the generation of eddy currents in the scanning box, thus reducing the problems of energy loss and heat generation, improving the performance and stability of the apparatus.

The automatic soot blowing furnace comprises a furnace body, a conveying device is arranged outside the furnace body, the conveying device is used for conveying a cupel into the furnace body, and a furnace door capable of being automatically opened and closed is arranged on the furnace body; and an endoscopic camera is arranged in the furnace body and is used for monitoring a soot blowing end point. The device can control the cupel to automatically enter and exit from the hearth, frequent door opening and closing are not needed, the temperature in the furnace is stable, energy consumption loss is reduced, harmful gas emission is reduced, and cost reduction and efficiency improvement are facilitated; image data are acquired by adopting a light supplementing lamp and an endoscopic camera, so that the method is more reliable and accurate; and the cupel subjected to soot blowing is taken out in time through the material taking module, the loss of metal silver is reduced, and the extraction content is increased. Due to feeding and discharging of the cupel, automatic operation is achieved, the working efficiency is improved by 50%, and the cupel can be in butt joint with full-automatic equipment.

The invention relates to the technical field of temperature control, in particular to a multi-dimensional compensation ablation system temperature control system, method and device and a medium. The system calculates a medium texture index representing the structural change of the load medium by synchronously acquiring electrical parameters and ultrasonic image data; constructing an anti-interference control model comprising an extended state observer, and defining energy transmission loss caused by contact thermal resistance as an extended state variable; calculating an adaptive correction factor based on the texture index, dynamically correcting the state updating process of the observer to obtain an energy loss correction estimated value, and constructing a compensation control model to adjust the output power according to the energy loss correction estimated value; according to the invention, the technical problem of incomplete heating caused by false high temperature of the sensor and system misjudgment due to state deterioration of the contact interface is effectively solved; accurate reconstruction and closed-loop compensation of effective heat flow in a non-ideal contact environment are realized, sufficient energy penetration can still be maintained even if contact thermal resistance is sharply increased, and the integrity of an ablation area is guaranteed.

The invention discloses an assembly type normal-pressure heating and refrigerating system, and relates to the technical field of building energy supply. Comprising an intelligent power grid linkage platform which is used for obtaining a power grid data set, a power generation energy data set and an equipment state data set in real time and preprocessing the obtained power grid data set, power generation energy data set and equipment state data set to obtain standardized fusion data; and the regional supply and demand prediction module is used for dividing regions according to functional attributes and establishing an independent energy consumption feature library. The characteristics of photovoltaic midday output peak and wind power night output stability are dynamically matched, cold and heat storage region division and energy storage rhythm in a single tank are adjusted by combining regional demands of heating, refrigeration and domestic hot water in the next day, photovoltaic electric energy can preferentially drive midday cold storage, wind power energy is efficiently used for night heat storage, and the energy efficiency is improved. And meanwhile, cold and hot fluid storage in the tank is more suitable for the next-day energy consumption scene, energy loss caused by cold and hot mixing is avoided, and new energy consumption and peak shifting and valley filling values are fully exerted.

The invention relates to the technical field of waste gas recovery, and discloses a waste gas recovery treatment device and a printing waste gas treatment technology.The waste gas recovery treatment device comprises a main shell, an auxiliary shell and a strip-shaped shell which are integrally arranged, the auxiliary shell is located on one side of the main shell, and the strip-shaped shell extends to the top of the auxiliary shell from the top of the main shell; two groups of main adsorbers and a plurality of groups of auxiliary adsorbers are arranged in an inner cavity of the main shell. By arranging the heat exchanger, the auxiliary shell, the two sets of main adsorbers and the driving assembly, the two main adsorbers connected in series can be switched for use, rapid saturation of a single main adsorber is avoided, the saturated adsorbers can be subjected to desorption regeneration in the auxiliary shell, recycling is achieved, the overall adsorption efficiency of harmful substances is improved, and in addition, the adsorption efficiency of the harmful substances is improved. By arranging the heat exchange assembly, the rapidly saturated main adsorber can be cooled, then the safety risk is reduced, overheating ignition is prevented, the high temperature of the main adsorber can also heat a nitrogen source for desorption, energy loss is reduced, and more energy is saved.

The invention relates to a novel organic electroluminescent material, which ingeniously combines deuterated modification and alkyl substitution through the elaborate design of the molecular structure, and realizes the synergistic improvement of various excellent properties. By introducing deuterium, the chemical stability and thermal stability of the material and a doped material are improved, the luminous efficiency and stability of a device are further greatly improved, and energy loss caused by vibration relaxation can be reduced by performing deuteration on phenyl on a 9, 9-diphenylfluorene unit, so that the efficiency of the device is improved. Alkyl substitution can optimize the energy level structure of the material and promote carrier injection and transmission, thereby improving the current efficiency of the device.

The invention discloses a ship waste heat utilization system and an energy recovery method, and the method comprises the steps: monitoring and collecting waste heat parameters in real time through a multi-sensor array, processing data fluctuation through a self-adaptive filtering algorithm, and carrying out the quality evaluation in combination with an effective energy model; according to the real-time effective energy value, the fluctuation index and the host load, the waste heat resource allocation priority is dynamically adjusted, and a multi-mode waste heat resource allocation strategy is synchronously formulated based on the output predicted by the extended Kalman filtering algorithm; a full-state prediction model based on an ORC system is constructed, and a prediction-optimization-compensation adaptive control framework is established; a heat charging and discharging sequence is optimized based on model prediction control, and energy loss is minimized; according to the method, performance indexes of the whole waste heat utilization system are monitored, control parameters are optimized by using a reinforcement learning algorithm based on real-time data, the optimized parameters are applied to the system, and closed-loop control is performed. The problem of insufficient waste heat utilization is solved, energy loss is remarkably reduced, and the waste heat utilization efficiency of the system is improved.

The invention belongs to the technical field of power transmission tower structure damping, and discloses an inerter particle type power transmission tower damping device with a multidirectional control effect. The inerter is introduced into the particle damper, so that the total mass of the damping device is reduced, and the light weight of the device is achieved. And in consideration of the fact that the seismic response of the power transmission tower is multidirectional motion, the arrangement mode of the particles and the inerter is optimally designed, so that the damping effect of the device is further improved. The inerter can generate inertia force opposite to the structural vibration direction, and the dynamic damping effect of the particle damper is guaranteed while the number of particles is reduced. The inerter composed of the gear and the rack is small in dead weight, compact in structure and easy to install, a power transmission mechanism has low energy loss, the gear and the rack are in rigid meshing transmission, rapid rotation of the flywheel can be achieved, the inerter has high sensitivity to sensing of earthquake response of a power transmission tower, and the inerter is suitable for popularization and application. And large rotation inertia force can be generated in a limited space.

The invention discloses a laser deicing method and device based on ice layer thickness and surface state recognition, belongs to the technical field of fan blade deicing, and aims to solve the problems of low efficiency, large energy loss and high blade damage risk caused by incapability of accurately sensing the ice layer state in the conventional fan blade laser deicing technology. The system comprises an active sensing module and a laser clearing module. The active sensing module measures the thickness and the surface state of an ice layer through infrared laser, and performs multi-dimensional monitoring in combination with a laser radar, a camera and a thermal infrared imager. And the laser clearing module dynamically adjusts laser parameters for deicing according to the sensing result. According to the invention, a non-contact ice thickness measurement method based on infrared laser and a surface state identification method based on relative illumination intensity are created for the first time, and accurate sensing of the ice layer state is realized. A laser and a power supply are fully integrated in the unmanned aerial vehicle, the constraint of a ground platform and optical fibers is eliminated, and the deicing task of the fan blade is accurately completed.

The invention relates to the technical field of LED lamps, in particular to an LED integrated module direct current illumination control method and system, and the method comprises the steps: collecting the historical operation data of a to-be-detected LED lamp in an LED integrated module and the electrical data of a direct current bus; determining a plurality of lightening durations and power standard-reaching durations of the to-be-detected LED lamp based on the historical operation data of the to-be-detected LED lamp; determining the energy loss degree of the to-be-detected LED lamp based on the plurality of lightening durations and the plurality of power standard-reaching durations; correcting the energy loss degree based on the electrical parameters of the direct current bus in the plurality of power standard-reaching durations to obtain a power regulation and control coefficient; and performing power regulation and control on the to-be-detected LED lamp based on the power regulation and control coefficient. According to the method, the output power of the to-be-detected LED lamp can be accurately regulated and controlled, and the illumination quality is improved.

According to the cavity type bulk acoustic wave resonator with the stepped cavity and the preparation method of the cavity type bulk acoustic wave resonator, the stepped cavity is adopted to buffer and reduce the pressure of the upper layer structure, the structural strength and stability are higher, the cavity is not prone to collapse during release, meanwhile, the edge stress is buffered and reduced, the material stripping risk is reduced, and the yield is increased. And the structure of the invention enhances edge heat dissipation, and is beneficial to improving the power capacity. The ScAlN thin film with good performance can be obtained by adopting the magnetron sputtering ScAlN as the piezoelectric layer and using Ti / Bt / AlN as the seed layer for growth, and the stability, the reliability and the comprehensive performance of the device are improved. The passivation layer is prepared on the surface of the device, so that mechanical damage of a subsequent process to a sensitive structure can be effectively prevented, sound wave energy can be limited in a piezoelectric oscillation region, and transverse leakage and energy loss are reduced; and the electric coupling between the FBAR and the substrate can be reduced, the radio frequency loss is reduced, and the Q value of the device is improved.

The utility model discloses a reflecting mirror applied to high-power laser, which comprises a base material structure layer, a reflecting dielectric film structure layer is arranged on the reflecting surface of the base material structure layer in a film coating mode, and the reflecting dielectric film structure layer is composed of 46 layers of high-refractive-index film structures and 46 layers of low-refractive-index film structures which are alternately overlapped from inside to outside. The reflector applied to the high-power laser can obtain high reflectivity in the application scene of the high-power laser under the working wave band of 915 + / -10nm, 976 + / -10nm or 1064 + / -10nm. Meanwhile, the dielectric film of the reflector is extremely low in laser absorptivity, and energy loss can be effectively reduced.

The invention provides an illumination system and projection equipment. The lighting system comprises a light source module, a wavelength conversion device, a first light guide assembly, a second light guide assembly and a micro-lens array module. The light source module is used for providing a plurality of green and blue laser beams. The wavelength conversion device is used for generating fluorescent light beams. The first light guiding assembly and the second light guiding assembly are used for guiding a fluorescent light beam and a green laser light beam respectively. The fluorescent light beams form fluorescent light spots on the first area of the first side face of the micro-lens array module. The plurality of green laser beams form a plurality of green light spots on a second area of the first side surface of the micro-lens array module. The first region is adjacent to the second region. The illumination system and the projection equipment provided by the invention avoid energy loss and have good light uniformity.

The invention belongs to the technical field of terahertz, relates to terahertz communication, and particularly discloses a quasi-optical resonant cavity and a terahertz pulse compression system. According to the invention, the pulse generation module and the coupling compensation module are connected in parallel and are connected to the common reflector through the common coupler, so that function decoupling is realized. In a pulse compression stage, the common coupler introduces an incident terahertz wave beam into two optical paths, and destructive interference occurs between two paths of leakage signals by adjusting the coupling compensation module, so that zero coupling loss is realized, and the problem of large energy loss is solved. Meanwhile, the pulse generation module can independently adjust the optical path of the pulse generation module to control the pulse width, and the adjustment process does not affect the optimized interference condition, so that the high robustness of adjustment is ensured. In the output stage, energy is released by switching the state of the common coupler. Compared with the prior art, low-loss accumulation and robust pulse width continuous adjustment are realized at the same time, so that the terahertz pulse compression effect is remarkably improved.

Provided in the present disclosure are a light-emitting device and a display panel comprising same, and a display apparatus. The light-emitting device comprises: a first carrier layer, a light-emitting layer and a second carrier layer, which are arranged in a stacked manner, wherein the light-emitting layer comprises a first light-emitting layer, a second light-emitting layer and a third light-emitting layer, which are arranged in a stacked manner, with the first light-emitting layer being arranged close to the first carrier layer, and the first light-emitting layer and the third light-emitting layer have different carrier transport rates. The light-emitting device of the present disclosure has a structure of three light-emitting layers, wherein the first light-emitting layer which is close to an anode side has a good hole injection / transport capability, the third light-emitting layer which is close to a cathode side has a good electron injection / transport capability, and the second light-emitting layer in the middle has a good hole and electron transport capability. Electrons and holes can be better injected into the light-emitting layers, an exciton recombination zone can also be broadened, and a larger part of the recombination zone is made to be within the light-emitting layers, so as to reduce the energy loss of non-radiative transition, thereby improving the efficiency and stability of devices.

The invention relates to a water heater fixed-point preheating method and system based on self-learning user habits. The water heater fixed-point preheating method comprises the following steps that S1, historical data of all water consumption points of a user under the zero cold water condition are continuously obtained; s2, updating the preference score of each water consumption point based on the historical data of each water consumption point; s3, comparing the preference scores of the water consumption points, and determining the water consumption point with the highest score as a target water consumption point; and S4, a user instruction is received, and a water heater is controlled to conduct fixed-point preheating on a water using pipeline corresponding to the target water using point. According to the method, intelligent fixed-point preheating under the condition of non-specified water consumption points is realized in a mode of intelligently learning user habits, so that excessive preheating is avoided, the energy loss is further reduced, and the use experience of the user is improved.

The application provides a phase optical element and a method for obtaining stable transmission of light intensity of non-diffraction light beams. The phase optical element having an equivalent light field modulation function to the amplitude optical element is used to replace the amplitude optical element, so that the light intensity distribution of the non-diffraction light beams is obtained. Compared with the amplitude optical element, the phase optical element has the advantages of small energy loss, low cost, easy processing and the like, and is suitable for more extensive practical applications.

The utility model relates to a cold and heat storage pipeline management device for an energy station, and belongs to the technical field of energy station management, and the cold and heat storage pipeline management device comprises a water pressure monitoring module which is used for monitoring pipeline pressure and observing and determining a water leakage point; the pipeline control module is arranged on the pipeline and used for controlling and switching the pipeline through which the fluid flows; the leakage blocking module is parallel to the pipeline and can move to the position of a water leakage point and block the water leakage position; and the control module is respectively connected with the water pressure monitoring module, the pipeline control module and the leakage blocking module, and controls the pipeline control module to switch the pipeline and the leakage blocking module to block the water leakage point by receiving a monitoring signal of the water pressure monitoring module. The pipeline damage and leakage problems can be quickly found and processed, faults can be eliminated in time, energy loss is reduced, and the pipeline management efficiency in the energy station is improved.

The utility model discloses an LED light source structure comprising a substrate, the substrate is connected with a light emitting unit and a first light blocking ring surrounding the outer side of the light emitting unit, and the light emitting unit comprises a purple light LED wafer, a blue light LED wafer, an ultraviolet light LED wafer, a red light generating structure and an infrared light generating structure. The surface of the blue light LED wafer is provided with first fluorescent powder or first fluorescent conversion glue capable of converting part of blue light into yellow light, purple light, blue light, yellow light, ultraviolet light, red light and infrared light are integrated, the light source structure can generate wider spectral distribution, and the color quality and the color rendering index of light are improved. The lighting quality can be improved, and the requirements of specific application fields such as plant growth lamps, special lighting in medical equipment and the like can be met. Through the design of the multi-wavelength LED wafer combination, spectral components are controlled more accurately, so that the energy conversion efficiency is optimized, unnecessary energy loss is reduced, higher luminous efficiency is achieved, and meanwhile energy consumption is reduced.

This utility model relates to an insulation structure for overhead steam pipelines, comprising, from the inside out, a first insulation layer, a second insulation layer, a third insulation layer, a fourth reflective layer, a fifth insulation layer, a first top layer, a second top layer, and a protective layer arranged sequentially outside the overhead steam pipeline. First reflective layers are respectively disposed between the first and second insulation layers and between the second and third insulation layers; second reflective layers are respectively disposed between the third and fourth insulation layers and between the fourth and fifth insulation layers; and a third reflective layer is disposed between the second top layer and the protective layer. This utility model, by sequentially setting five insulation layers and coordinating the first and second reflective layers between them, can achieve insulation of the overhead steam pipeline, reducing energy loss and energy consumption. The first top layer, second top layer, and protective layer protect the overhead steam pipeline, the insulation layers, and the reflective layers, improving the overall structural stability and service life.

The embodiment of the invention discloses a wavefront regulation and control module, a wavelength selection switch and optical network equipment, and relates to the field of optical devices. The invention aims to improve the coupling efficiency of the wavefront regulation and control module. According to the specific scheme, the wavefront regulation and control module comprises a base layer, a filling layer and a plurality of metasurface optical elements. The base layer and the filling layer are stacked; the plurality of metasurface optical elements are located between the base layer and the filling layer; on the surface of the base layer, the arrangement path of the plurality of super-surface optical elements is arc-shaped. In the transmission process of the light beams in the wavelength selective switch, due to the fact that the positions of the input ports of the optical fiber array are different, the incident angles of the light beams, transmitted to the grating, of the input ports are different. And the light beam of each input port has position offset in the dispersion direction after being shaped by the grating. The plurality of metasurface optical elements are arranged in an arc shape, so that the energy loss caused by the deviation of the light beam in the dispersion direction after the light beam is shaped by the grating can be reduced, and the coupling efficiency of the wavefront regulation and control module is improved.

The application discloses a kind of light storage power collaborative control method and system based on demand response, belong to microgrid energy management technical field.Through the construction microgrid power scheduling double-objective optimization model, realize the efficient response of microgrid to scheduling instruction and energy loss optimization;Through day photovoltaic power prediction curve and electricity load power prediction curve, combined with power grid day-ahead scheduling instruction to solve the initial state of storage system, avoid the scheduling failure caused by unreasonable initial state;Calculate the expected storage output demand and execute differentiated light storage collaborative allocation strategy, maximize photovoltaic consumption under the premise of meeting scheduling instruction;Based on the coupling relationship of storage unit SOC and SOH, realize the fine power distribution between storage units.The application reduces the scheduling loss of microgrid responding to demand side instruction through multi-link collaborative optimization, improves photovoltaic consumption efficiency, and is suitable for intelligent scheduling scene of various microgrids.

The application discloses a high-energy and few-cycle blue light laser generation method and device, and belongs to the technical field of ultrafast laser, wherein the method comprises the following steps: adopting a nonlinear crystal to double frequency of a base frequency pulse after compression, and performing at least twice pulse width compression on the obtained double frequency pulse to obtain high-energy and few-cycle blue light laser; wherein, the double frequency process and the pulse width compression process are both performed in a cavity filled with helium; the pulse width compression process is performed through spectral broadening of a solid sheet; since the helium has extremely low linear dispersion and nonlinear coefficient and extremely high ionization energy, not only the solid sheet damage can be avoided, and a part of spectral broadening is contributed, but also an environment close to vacuum can be provided in terms of dispersion and laser-induced ionization, so that the dispersion compensation of the double frequency pulse is easier, and the energy loss caused by gas ionization and the input energy limitation are avoided, and higher output energy is allowed; the problem that the high-energy and ultra-short pulse width blue light pulse is difficult to be realized simultaneously at present is effectively solved.

This application discloses an energy storage device and HVAC equipment, relating to the field of energy storage technology. The energy storage device includes a thermal insulation structure, multiple first pile foundations, and multiple heat exchangers. By burying the thermal insulation structure in the foundation soil and forming an energy storage space within the thermal insulation structure, the thermal insulation structure prevents heat exchange between the foundation soil inside the energy storage space and the foundation soil outside the energy storage space, thereby preventing energy loss from the energy storage space. During off-peak hours at night, the energy is stored in the foundation soil inside the energy storage space through heat exchangers. During the day, the energy in the energy storage space can be absorbed by the heat exchangers to provide heating or cooling for users, thus ensuring the "peak shaving and valley filling" effect of the HVAC equipment. Furthermore, since the entire energy storage device is buried in the foundation soil, the footprint can be reduced, and since the energy storage device uses the foundation soil as the energy storage medium, construction costs can be reduced.

The utility model relates to the field of fireworks, and discloses a high-thrust firework which comprises a launching cylinder, sealing paper is fixedly connected to the top end of the inner wall of the launching cylinder, an ignition assembly is arranged on the upper portion of the sealing paper, and a launching assembly is arranged in the launching cylinder. The launching assembly comprises an effect inner cylinder, the effect inner cylinder is pressed at the bottom end of the inner wall of the launching cylinder, a blocking paper sheet is fixedly connected to the middle section of the inner wall of the effect inner cylinder, and a cavity is formed in the inner wall of the effect inner cylinder; the portion, located above the blocking paper piece, in the effect inner cylinder is sequentially filled with propellant powder, clay knots and acousto-optic powder from bottom to top. According to the utility model, the propellant powder is filled in the lengthened effect inner cylinder, so that the thrust transmission path is shortened, the energy loss caused by a gap between the launching cylinder and the effect inner cylinder is reduced, and under the condition of the same propellant powder amount, larger upward thrust can be generated, and the firework launching height can be increased.

The invention relates to a glass-based photoelectric volume pulse wave cover plate material as well as a preparation method and application thereof. The cover plate material comprises: a glass substrate; the annular structural part is embedded in the glass substrate; the annular structural member and the glass substrate are made of the same material; the glass substrate comprises the following components in percentage by mass: 0.1 wt%-0.2 wt% of BaO; 0.1 wt% to 0.6 wt% of PbO; 0.1 wt% to 0.7 wt% of Sb2O3; 25 wt%-61 wt% of SiO2; 16 wt% to 18 wt% of B2O3; 10 wt% to 15 wt% of Al2O3; 8 wt% to 12 wt% of R2O; wherein R2O is composed of Li2O, Na2O and K2O, and the content of K2O is smaller than that of Na2O. The technical problem to be solved is to provide the cover plate material with a large number of sensor optical channels, so that the cover plate material has high transmittance and high crosstalk resistance, a plurality of optical paths can be formed in the cover plate material, and the problems of scattering and the like in the light propagation process are reduced by selecting single glass with a specific formula, so that the light transmission efficiency is improved. The energy loss in the light ray propagation process is reduced, and the propagation distance of the light rays in the glass cover plate is increased; meanwhile, the glass cover plate also has higher mechanical strength.

This application provides an optical system and a laser ranging device. The optical system includes: a transmitting unit (210) for emitting a laser beam; a beam shaping unit (220) for shaping the laser beam so that it first converges and then diffuses to form a linear laser; a perforated mirror (230) with the aperture located at the convergence point of the laser beam, the perforated mirror (230) for reflecting the laser echo of the linear laser; and a receiving unit (240) for receiving the laser echo from the perforated mirror (230), which helps to reduce the energy loss of the laser echo during laser reception.

A transmitting device, a detection device and a terminal are applied to the technical field of detection, and the transmitting device comprises a first transmitting module and a second transmitting module. Wherein the first transmitting module is used for transmitting a first light beam, the polarization state of the first light beam is a mixed polarization state, and the mixed polarization state light beam is low in energy loss and high in energy density in the transmitting process and has good distance measuring capacity. The first transmitting module is used for transmitting the second light beam, the polarization state of the second light beam is linear polarization, the detection device is suitable for scenes needing higher transmissivity or higher reflectivity, and the anti-interference performance of the detection device can be improved. Furthermore, the first light beam and the second light beam are used for detecting different areas of the object space, composite detection combining mixed polarization detection and polarization detection is carried out on the object space, interference of reflection and the reflection effect on detection is reduced while the distance measuring performance of the detection device is not obviously reduced, and the detection device has higher detection precision.