170results about How to "Improve response rate" patented technology

The invention discloses a double-layer energy management method for a long-distance heat supply system comprising a distributed energy storage adjusting unit. The double-layer energy management method comprises the steps that the long-distance heat supply system comprising the distributed energy storage adjusting unit is established; setting an application mode of a distributed energy storage adjusting unit in the long-distance heat supply system; setting an energy storage and discharge mechanism of the distributed energy storage adjusting unit; by taking maximum consumption of new energy, optimal load supply and demand balance and optimal economic benefit as objective functions, establishing an energy storage adjusting unit optimization operation model in the source side thermal power plant, and deciding energy storage and discharge states and energy storage and discharge of the energy storage adjusting unit under different time scales; taking the minimum load curve standard deviation, the optimal heat load supply and demand balance, the lowest heat loss load rate and the maximum delay thermal power plant investment limit as objective functions, and establishing a heat storage device optimization operation model of a heat storage adjusting pool and a heating station on a pressure isolation station side and a heat user side; and energy storage and release states and heat storage and release of the heat storage adjusting water tank and the heat storage device under different time scales are decided.

The invention discloses a vehicle-mounted bidirectional power converter which comprises a pre-stage voltage stabilization module, a pre-stage driving circuit, a post-stage driving circuit, a post-stage filtering module and an electric vehicle battery module, the pre-stage voltage stabilization module is used for balancing circuit voltage and supporting reactive power, the pre-stage driving circuit is of a single-phase full-bridge AD-DC topological structure, and the post-stage filtering module is of a single-phase full-bridge AD-DC topological structure. The front-stage driving circuit is of a half-bridge type bidirectional DC-DC topological structure, the rear-stage driving circuit is of a half-bridge type bidirectional DC-DC topological structure, the front-stage driving circuit and the rear-stage driving circuit are connected together through a direct-current voltage-stabilizing bus, the size is small, the weight is light, a front stage and a rear stage do not interfere with each other, control is easy, the rear-stage filtering module is used for restraining direct-current side second harmonics, the harmonic quantity is prevented from influencing the stability of output direct-current voltage, and the output direct-current voltage is stable. According to the converter, a corresponding control method is designed, non-inductive decoupling control and a single-phase phase-locked loop of an improved loop filter are adopted, the phase of a power grid is accurately and efficiently obtained, and the converter works stably.

The invention relates to an intelligent operation and maintenance method applied to an operation and maintenance platform, and the method comprises the steps: obtaining the operation data of a to-be-tested device; judging whether the to-be-tested equipment is abnormal or not based on the operation data, and if the to-be-tested equipment is abnormal, determining the operation data as to-be-tested fault data; inputting the to-be-detected fault data into a pre-trained fault analysis model, and outputting a target processing report corresponding to the to-be-detected fault data, the fault analysis model comprises a fault detection module for performing fault type detection on to-be-detected fault data, a retrieval module for retrieving a target solution corresponding to the to-be-detected fault data from a preset operation and maintenance knowledge base, and a scheme generation module for generating a corresponding target processing scheme according to the to-be-detected fault data; and sending the target processing report to a management terminal corresponding to the to-be-tested device. The problems that in the prior art, an intelligent operation and maintenance system excessively depends on manual processing and experience judgment, so that the fault processing efficiency is low, the response speed is low, and the error rate is high are solved.

The utility model discloses an infrared narrowband optical filter with a working wave band of 3900-4100nm, the infrared narrowband optical filter comprises a substrate, a main film system and a secondary film system, the main film system is arranged on a first side of the substrate, the secondary film system is arranged on a second side of the substrate, the second side is opposite to the first side, the main film system is arranged on the first side, and the secondary film system is arranged on the second side of the substrate. The main film system comprises 26 high-refractive-index film layers and low-refractive-index film layers which are alternately overlaid outwards from the substrate according to the structure of the main film system, and the secondary film system comprises 38 high-refractive-index film layers and low-refractive-index film layers which are alternately overlaid outwards from the substrate according to the structure of the secondary film system. The infrared narrow-band optical filter can have a good light transmission effect within the wavelength range of 3900-4100 nm, the average transmittance is larger than 94%, the infrared narrow-band optical filter is highly cut off within the wave bands of 1000-3700 nm and 4300-6500 nm, the average transmittance is smaller than 1%, stray light interference can be effectively reduced, and the sensitivity and the detection efficiency of an infrared detector are improved.

The invention provides an avalanche photodetector chip, which can be applied to the technical field of optoelectronic devices, and comprises a substrate; the epitaxial layer is located on the substrate, the epitaxial layer comprises an N-type contact layer, a multiplication layer, a charge layer, a first transition layer, an absorption layer, a second transition layer, a cap layer and a P-type contact layer which are sequentially arranged, the epitaxial layer comprises an inclined mesa structure, and the top surface of the inclined mesa structure is the surface, away from the substrate, of the P-type contact layer; and the bottom surface of the inclined mesa structure is an N-type contact layer. Through the design of the inclined mesa structure, the opposite area between the layers of the upper mesa and the lower mesa can be reduced, the parasitic capacitance of the chip is reduced, the high-speed characteristic of the chip is improved, no extra process is added, and the preparation is simpler. The invention also provides a preparation method of the avalanche photodetector chip.

The embodiment of the invention provides a data processing method of a display device and the display device, for each backlight driver, if the dimming data of the current frame of the backlight driver is different from the dimming data of the previous frame, a backlight controller sends the dimming data of the current frame to the backlight driver; the backlight driver drives the light emitting unit to emit light according to the dimming data of the current frame, if the dimming data of the current frame of the backlight driver is the same as the dimming data of the previous frame, the backlight controller does not send the dimming data of the current frame to the backlight driver, and the backlight driver drives the light emitting unit to emit light according to the dimming data of the previous frame. Compared with sending the dimming data of all the backlight drivers, the dimming data of the current frame is only sent to the backlight drivers with changed data, so that the data transmission quantity, the electromagnetic interference, the power loss and the data transmission time can be reduced, and the response rate of the display equipment is improved.

The invention relates to the technical field of digital model construction of network construction type control energy storage power equipment, in particular to an energy storage electromechanical transient model construction method and system for analyzing the characteristics of a synchronous control equipment grid-connected system, and the method comprises the steps: applying double droop control to an energy storage converter system, analyzing a regulation and control principle and grid-connected equivalent external characteristics, constructing a grid-connected equivalent circuit of the double-droop control energy storage converter system; designing the structure of the energy storage converter system; according to the designed energy storage converter system structure, a double-droop control part electromechanical transient model, an energy storage body electromechanical transient model and a grid-connected interface electromechanical transient model are constructed, and a complete energy storage converter control system electromechanical transient model capable of being embedded into a PSASP main interface is formed. And the output power change of the converter is reflected at the access node, so that the functions of characteristic analysis, load flow calculation and the like of a regional power grid system accessed to the energy storage converter can be realized, and a technical scheme is provided for guiding the planning design of accessing the energy storage converter to the regional power grid.

The invention discloses a two-piece long-wave infrared lens which comprises a first lens and a second lens which are sequentially arranged from an object plane to an image plane, the first lens and the second lens are both meniscus lenses which protrude towards the object side and have positive focal power, at least one of the object side face and the image side face of the first lens is a binary plane, and at least one of the object side face and the image side face of the second lens is a convex plane. The object side surface and the image side surface of the second lens are aspheric surfaces; and the proportional relation among the focal length, the maximum image height and the field angle is reasonably set. According to the lens, good imaging is ensured, the size and weight are reduced, the cost is reduced, the response rate is improved, and a large clear photographing range can be ensured when an object is remotely recognized.

The invention discloses a high-shear dynamic mixing reaction device for preparing flexible particles and a dynamic treatment process, and relates to the technical field of preparation of battery raw materials, and the process is characterized in that a flexible particle material for a battery is prepared in a compact space by adopting a pulsating stress dynamic processing method on the basis of an existing chemical formula. Performance obtained by a material formula and performance obtained by pulsating stress dynamic processing are mutually complemented to form an organic whole, the reaction device comprises a barrel, a feeding port is formed in the top of the barrel, a discharging port is formed in the bottom of the barrel, and a kneading and turning mixing mechanism is arranged, rotation of a stirring shaft is used as driving force of a sliding block, so that the material formula and the pulsating stress dynamic processing are combined, and the material formula and the pulsating stress dynamic processing are combined. The sliding block slides in the fixed sleeve in a reciprocating mode, upward and downward pressure is provided for materials in the barrel, the triangular fins are arranged on the baffles in a matched mode, the tips of the triangular fins can provide better shearing force for material particles rotating moderately, the materials are continuously kneaded and turned over and tend to be round, and carbon coating can be more uniform.

The invention relates to the field of semiconductor device design and manufacturing, and discloses a method for growing a second-class superlattice infrared detector based on MBE. A buffer layer disposed over the semiconductor substrate; the N-type lower electrode contact layer is positioned above the buffer layer; the medium-wave infrared absorption layer is positioned above the N-type lower electrode contact layer; the electron barrier layer is positioned above the medium-wave infrared absorption layer; the short-wave infrared absorption layer is positioned above the electron barrier layer; the N-type upper electrode contact layer is positioned above the short wave infrared absorption layer; the Cap layer is located above the N-type upper electrode contact layer; an upper electrode of the electrode layer is positioned above the Cap layer; the lower electrode is connected with the N-type lower electrode contact layer; and the passivation layer covers the side wall of the detector. Different absorption layers are separated by adopting the electron barrier layer, and the crosstalk effect between different wave bands is reduced, so that the false alarm rate of the detector in a complex environment is reduced, and the detector can still keep high precision in a high-interference environment due to the characteristic.

The invention discloses a medium-wave infrared band-pass filter and an infrared detection system.The medium-wave infrared band-pass filter comprises a substrate, a main film system and a secondary film system, the main film system is located on the first side of the substrate, the secondary film system is located on the second side of the substrate, the second side is opposite to the first side, and the main film system is located on the first side of the substrate. The main film system comprises 22 high-refractive-index film layers and low-refractive-index film layers which are alternately overlapped outwards from the substrate according to the structure of the main film system, and the secondary film system comprises 40 high-refractive-index film layers and low-refractive-index film layers which are alternately overlapped outwards from the substrate according to the structure of the secondary film system. According to the medium-wave infrared band-pass optical filter, a good light transmission effect can be achieved within the wavelength interval of 4.5-5.0 microns, the average transmittance is larger than 92%, high cut-off is achieved within the wave bands of 1-4.2 microns and 5.3-7.5 microns, the average transmittance is smaller than 1%, stray light interference can be effectively reduced, and the sensitivity and detection efficiency of an infrared detector are improved.

The invention relates to the technical field of data communication, in particular to a communication method and system for an intelligent water meter, and the method specifically comprises the steps: collecting all water meter data at all moments through the intelligent water meter, constructing a communication urgent coefficient based on the data change of to-be-transmitted water meter data and historical water meter data, analyzing historical behavior information of the intelligent water meter in combination with data transmission times of other intelligent water meters in a current intelligent water meter neighborhood range, constructing an initial decision value of LoRa communication working mode switching of the to-be-transmitted water meter data, and performing LoRa communication working mode switching on the to-be-transmitted water meter data in combination with a change trend of the communication urgency coefficient of the to-be-transmitted water meter data. The communication switching decision value of each state judgment interval of the to-be-transmitted water meter data is constructed, intelligent water meter communication is performed based on the communication switching decision value, the potential trend of abnormal working condition change of a water network in the to-be-transmitted water meter data can be accurately extracted, and the communication mode switching precision of the intelligent water meter is improved.

Embodiments of the present application provide a vehicle-mounted data transmission method, device, equipment and storage medium. The method comprises: determining a first transmission data packet from at least two transmission data packets of a vehicle; determining a network link corresponding to each first transmission data packet according to the network quality of at least two network links associated with the vehicle; and transmitting each first transmission data packet based on the network link corresponding to each first transmission data packet. Embodiments of the present application can realize multi-link transmission of vehicle-mounted data, reduce the transmission delay of vehicle-mounted data, efficiently utilize the multi-link transmission capability of the vehicle to maximize the rapid transmission of multiple transmission data packets, ensure the efficient stability of vehicle-mounted data transmission, and improve the response rate and accuracy of vehicle-mounted data transmission.

The invention discloses a cascade double-color photoelectric detector for realizing optical signal amplification based on an avalanche effect, and belongs to the technical field of photoelectric detection and photoelectric imaging. According to the invention, a semiconductor double heterojunction structure from top to bottom is designed, the PIN-type infrared photoelectric detector and the solar blind ultraviolet avalanche photoelectric detector are induced to excite each other through bias voltage regulation and control, and rapid detection of ultraviolet light and infrared light incident to the detector is realized. In this way, the problem that the wavelength range of absorbed light of a traditional detector is limited is solved, ultraviolet band light signals and infrared band light signals are detected at the same time in the target environment, and meanwhile the light current gain of infrared band light signal detection is improved. The invention is suitable for the field of photoelectric detection, improves the detection capability of target light, and improves the light responsivity.

The application discloses a thermoelectric pile structure for calibrating a far ultraviolet ultraviolet detector based on MEMS, which comprises a silicon substrate, a support layer, an absorption layer, a thermocouple pair, aluminum wires, aluminum electrodes and a single crystal silicon material structure on the silicon substrate. The double-layer thermocouple stacking structure is adopted to improve the device duty ratio, more thermocouple pairs can be laid in the case of keeping the size of the one-layer structure unchanged, and the response rate of the detector is improved. The circular structure conforms to the distribution trend that the temperature is radially diffused from the center of the absorption layer to the periphery in a decreasing manner, the hot end of the thermocouple pair can be closer to the area with higher temperature, the temperature of the hot end of the thermocouple pair is more uniform, and the response rate of the detector is improved. The radiant energy of the far ultraviolet ultraviolet radiation source is converted into an output thermoelectric electromotive force, a mathematical model of Fourier's law and the Seebeck effect is established for calculation, and the heat flux density of the far ultraviolet ultraviolet radiation source is measured.

The invention discloses a long-wave class-II superlattice SF6 gas detector which comprises a focal plane array, the focal plane array comprises a plurality of independent photosensitive pixels, the focal plane array and a reading circuit are connected to form an infrared focal plane detector assembly, and each photosensitive pixel comprises a GaSb substrate. The GaSb buffer layer, the n InAsSb buffer layer, the n-type lower ohmic contact layer, the n-type InAs / GaSb intrinsic second-class superlattice light absorption layer, the AlGaAsSb barrier layer and the n-type upper ohmic contact layer are sequentially arranged on the GaSb substrate; partial region of each layer of epitaxial material is etched to the bottom n-type contact layer to form a bottom electrode window, and partial region of each layer of epitaxial material is etched to the top n-type contact layer to form a top electrode window; an Au nano array is prepared on the n-type upper ohmic contact layer to serve as a plasmon structure; a bottom annular electrode is deposited and prepared on the bottom electrode window, and a top electrode is deposited and prepared at the top electrode window, so that the SF6 gas can be accurately and efficiently monitored in a non-contact, real-time and long-distance manner, and the leakage point of the SF6 gas can be quickly and accurately searched.

The invention provides an agent communication method, a readable storage medium and electronic equipment, and is applied to the technical field of software. The method comprises the following steps: when a target message sent by a source agent in a plurality of agents is received, caching the target message into a message queue, extracting the target message from the message queue, determining a target agent for processing the target message from other agents based on the extracted target message, and sending the target message to the target agent. In the method, each agent communicates through a message structure and a communication interface, so that each agent can indirectly communicate through a communication framework without protocol conversion, protocol conversion in a communication process can be avoided, consumption of hardware resources and time is reduced, and the communication efficiency is improved. Therefore, the running efficiency of a software system can be improved.

The invention discloses an optimization method and system for establishing a marketing activity strategy based on vehicle dispatching data. The invention relates to the technical field of online car hailing. The method comprises the following steps: collecting order completion data a, driving data b and duration data c of a driver from a database of an online car-hailing platform to form a data set D; and generating feature data D'according to the data set D, wherein the feature data D 'comprises statistical information of the historical order completion amount a'and the driving duration c' of the driver. Configuring basic information of the main activity, wherein the basic information comprises requirements of a time period d, a city e and a region f; and after all the tenants finish auditing and the activity starting time is up, starting a timed task to monitor the activity state. And generating a daily sub-activity strategy according to the rule of the main activity and the feature data generated upstream. According to the invention, through real-time data analysis and intelligent strategy generation, dynamic management and optimization of online car-hailing driver activities can be realized, so that the overall operation efficiency of an online car-hailing platform is improved. And the platform can better deal with the market change and adjust the operation strategy in time.

This invention discloses a liquid-cooled collaborative intelligent temperature control method and system based on layered PCM, relating to the field of liquid-cooled temperature control technology. The method includes: S1, real-time acquisition of liquid-cooled temperature control data and preprocessing of the data; S2, calculation of the sensible and latent heat absorption of the outer and inner PCM layers, assessment of the risk of thermal imbalance on the conductor surface, determination of the current thermal state, and output of a thermal risk warning signal; S3, assessment of the degree to which cable bending weakens thermal coupling performance, triggering a layered PCM collaborative temperature control strategy, and execution of graded control commands for the power pump, circulation pump, and three-way valve; S4, assessment of the deviation between the current heat exchange capacity and the heat load demand, correction of the cooling response coefficient, and optimization of the PCM collaborative temperature control strategy. This solves the problems of unstable thermal coupling between the coolant pipe and the heating conductor in existing liquid-cooled cables, and the tendency for pipe deformation and contact thermal resistance and localized hot spots to occur with frequent bending.

The present invention relates to the technical field of intelligent hydrogels, and discloses a method for preparing a temperature-sensitive single-layer hydrogel with controllable transparency, comprising the following steps: (1) dissolving acrylamide, acrylic acid, and cyclodextrin monomers in water, adding acryloyloxyethyl trimethyl ammonium chloride, fatty alcohol polyoxyethylene ether-9, and a crosslinking agent and mixing them thoroughly; then adding an initiator and a catalyst to obtain a hydrogel prepolymer; (2) injecting the hydrogel prepolymer in step (1) into a mold to react and obtain a single-layer hydrogel. The single-layer hydrogel has excellent mechanical properties and a rapid transparency change capability. The present invention also uses the single-layer hydrogel for double-layer assembly through the host-guest interaction between cyclodextrin and isopropyl, and prepares a double-layer hydrogel with high double-layer bonding strength and capable of realizing rapid and reversible anisotropic deformation. The single-layer hydrogel and the double-layer hydrogel have broad application prospects in the fields of intelligent actuators, soft robots, biomedical devices, or artificial muscles.

The invention discloses a fast response-based multi-target planning method for source network load storage cooperation, which belongs to the field of offshore photovoltaic technology, and comprises the steps of acquiring previous operation data, processing the data, constructing a source network load storage data set, setting constraint conditions according to equipment operation conditions, and establishing a source network load storage data set; performing multi-objective optimization solution on the source network load storage data set by applying a genetic algorithm to obtain a multi-objective optimization result; through the source network load storage multi-objective optimization system, historical data can be subjected to multi-objective optimization and stored in a database in a classified mode, existing data can be analyzed and processed, a new optimization operation scheme is obtained and stored in the database, the database is continuously improved, database scheme matching response is accelerated, and the optimization efficiency is improved. The system operation speed is effectively accelerated, so that the operation characteristics of the system are improved, the power supply reliability is improved, the energy waste is reduced, the sustainable development of the power system is promoted, and the problems of the existing source network load storage operation response delay and the like are solved.

According to the field effect transistor based on component and gate voltage combined regulation and control and the preparation method thereof, a silicon dioxide layer is arranged on an intrinsic low-resistance silicon substrate, a source metal electrode and a drain metal electrode are arranged on the silicon dioxide layer, the source metal electrode and the drain metal electrode are metal composite electrodes and comprise a chromium electrode and a gold electrode, the bottom layer filled with channels of the source electrode and the drain electrode is a bismuth-selenium-oxygen nanosheet, and the bottom layer filled with the bismuth-selenium-oxygen nanosheet is a bismuth-selenium-oxygen nanosheet. A black arsenic-phosphorus nanosheet and a top gate bismuth-selenium-oxygen nanosheet dielectric layer are arranged on the bismuth-selenium-oxygen nanosheet, and the source electrode, the drain electrode and the gate electrode are connected with corresponding lead electrodes and are used for being connected with an external test circuit. According to the field effect transistor based on combined regulation and control of the components and the gate voltage and the preparation method of the field effect transistor, through packaging of the bismuth-selenium-oxygen nanosheets, the components of black arsenic and phosphorus and the gate voltage of the top gate are adjusted, so that the photoelectric performance of the device in the visible light, near-infrared and medium-wave infrared ranges is optimized.

This application discloses a storage system, a control method for the storage system, and an apparatus for the storage system, relating to the field of computer technology. The storage system includes a node scheduler and multiple processor nodes, each processor node including a processor core, a processor port, and candidate storage devices. The node scheduler is used to allocate a target processor node to a target request based on the received information of the target request and the target mapping relationship. The target processor core is used to determine the operation position of the target request based on the request information of the target request and to generate a target instruction based on the target request and the operation position. The target storage device is used to execute the target instruction and generate execution information of the target instruction. The target processor core is also used to update the metadata database based on the execution information and send the execution information to the sending interface. This application solves the technical problem of low response rate of the storage system to read and write requests, and achieves the technical effect of improving the response rate of the storage system to read and write requests.

This invention discloses a chemiluminescence gas sensor based on polyoxometalates (POMs), and relates to its fabrication method and application. The sensor is suitable for detecting ammonia at room temperature. The gas sensor includes an adapter base and a sensing element, wherein the sensing element consists of interdigitated electrodes and a sensitive material loaded on the electrode surface. This sensitive material is a composite material of POMs and SnO2. POMs, as excellent electron acceptors, possess good redox properties, thermal stability, and photosensitivity. When combined with SnO2, they can effectively suppress electron-hole recombination, thereby significantly improving the gas-sensing performance of the semiconductor material. Compared with existing technologies, the sensor provided by this invention exhibits high response characteristics to ammonia at room temperature, while also demonstrating excellent selectivity and repeatability.

The invention discloses a response rate testing method and system for a power MOS tube, and relates to the technical field of power semiconductor device testing, and the method comprises the steps: setting the working parameters of the MOS tube, and simulating the working environment of the MOS tube in practical application; capturing charge distribution and heat effect generated in the switching process of the MOS tube through the optical micro interferometer, and obtaining initial time domain response data; converting the time domain response data into frequency domain data to obtain frequency response characteristics; the time domain response data and the frequency domain data are combined to comprehensively evaluate the response rate of the MOS tube under different frequencies and different working conditions, and a dynamic response rate report is generated; constructing a response rate prediction model according to the dynamic response rate report, training and optimizing the response rate prediction model through historical data, inputting the working parameters of the MOS transistor into the response rate prediction model, and predicting the response rate of the MOS transistor in a period of time in the future; and comparing the actual test result with the prediction result, and dynamically adjusting the working parameters of the MOS tube according to the error.

The present invention proposes a control method, device, storage medium, driver and logistics trolley for a first driver, the first driver is communicatively connected with a plurality of second drivers, and the control method of the driver includes: when the first driver is in a fault state, controlling the component driven by the first driver to shut down; determining at least one conjugate driver according to the degree of association between the first driver and the plurality of second drivers; sending an autonomous parking message to at least one conjugate driver, so that at least one conjugate driver adjusts the operating state of the component driven by it according to the autonomous parking message. In the above technical solution of the present invention, after the first driver determines that it is in a fault state, it does not need to report the fault information to the controller, but directly sends an autonomous parking message to at least one conjugate driver, omitting the step of transmitting instructions through the controller, thereby improving the transmission efficiency of instructions.

The invention discloses an intelligent AEM electrolytic bath control system. The system is specifically characterized in that the power generation power of a hydrogen production power supply system, the first operation power interval of an anion exchange membrane AEM electrolytic bath and the second operation power interval of an alkaline electrolytic bath are obtained; based on the generated power, the first operation power interval and the second operation power interval, the actual operation power of the AEM electrolytic cell is controlled; by analyzing the operation strategy of the hydrogen production system, on the basis of the power generation power of the hydrogen production power supply system, the first operation power interval of the AEM electrolytic cell and the second operation power interval of the alkaline electrolytic cell, the start-stop state and the actual operation power of the alkaline electrolytic cell and the AEM electrolytic cell are controlled, and the operation efficiency, reliability and response rate of the hydrogen production system can be improved.

The invention relates to the technical field of gates, and discloses gate safety detection equipment which comprises a stainless steel sheet metal shell, and a poison explosion detector, a sampling belt conveying system, a poison explosion detection control panel and a certificate identifier which are arranged in the stainless steel sheet metal shell. By optimizing the structural design of the sampling assembly, the sampling belt can make full contact with the surfaces of certificates of different sizes, the trace substance detection requirements of various passing certificates such as identity cards and passports can be met, equipment parameters do not need to be adjusted for different certificates, the adaptation range is wide, and the device is suitable for various public passing scenes.

The utility model discloses an InAs / GaSb superlattice medium / long wave double-color infrared detector based on an nBn structure, which belongs to the technical field of optoelectronic devices and comprises a GaSb substrate, a non-doped GaSb buffer layer, a 14ML InAs / 7ML GaSb superlattice Si doped layer, a 14ML InAs / 7ML GaSb superlattice unintentional doped layer, a 4ML InAs / 7ML GaSb superlattice unintentional doped layer, a 8ML InAs / 6ML GaSb superlattice unintentional doped layer and a 8ML InAs / 6ML GaSb superlattice Si doped layer which are sequentially arranged from bottom to top. The medium / long wave absorption layers of 14ML InAs / 7ML GaSb superlattices and 8ML InAs / 6ML GaSb superlattices are combined, so that high absorption efficiency and low crosstalk of medium / long wave band response are realized, and low dark current and wide temperature range working capability are realized.

In order to solve the problems that an existing temperature-sensitive color developing layer containing a temperature-sensitive color developing material is low in color-changing sensitivity and slow in temperature response, the temperature-sensitive color developing assembly comprises a transparent film layer, a color-changing hydrogel layer and a non-transparent film layer, the color-changing hydrogel layer is arranged between the transparent film layer and the non-transparent film layer, and the color-changing hydrogel layer is arranged between the transparent film layer and the non-transparent film layer. The color-changing hydrogel layer comprises a first color-changing hydrogel area, a second color-changing hydrogel area and an nth color-changing hydrogel area, n is greater than 2, the color developing temperature of the first color-changing hydrogel area is T1, the color developing temperature of the second color-changing hydrogel area is T2, the color developing temperature of the nth color-changing hydrogel area is Tn, and T1 < T2 < Tn. According to the temperature sensing type color developing assembly, the temperature response rate is increased, the length of the color developing strip is gradually increased along with the gradual increase of the temperature, the response rate is high, the color is clear, and the sensitivity is high.