81results about How to "Accurate output" patented technology

The invention discloses a printing method, device and equipment for any-fold ink quantity output and a storage medium, and relates to the technical field of ink-jet printing. The method comprises the steps that the reciprocating scanning frequency, initial stepping information and ink amount adjusting information of a to-be-printed task are obtained; actual printing stepping information is obtained according to the reciprocating scanning times and the ink amount adjusting information; processing the to-be-printed data corresponding to each type of to-be-adjusted ink according to the reciprocating scanning times and the ink amount adjustment multiple to obtain actual printing data; and controlling a printing nozzle and a printing medium to move relative to each other according to the actual printing stepping information, and performing ink jetting in the moving process according to the actual printing data. The technical problem that an existing printing method cannot conveniently and accurately output the doubled ink amount with any multiple can be solved.

This utility model relates to the field of electrical energy detection technology, and proposes a high-current electrical energy detection device with closed-loop control function. The device includes: a programmable power source module, including an output drive unit for outputting current, voltage signals, and waveforms within a large current range; a standard measurement module connected to the output drive unit for detecting the current, voltage signals, and waveform parameters output by the output drive unit; a waveform sampling module connected to the output drive unit for sampling the waveform output by the output drive unit; a closed-loop control module bidirectionally connected to the programmable power source module and the waveform sampling module for adjusting the current, voltage signals, and waveforms; and an external device detection interface connected to the output terminal of the output drive unit for connecting different types of high-current metering devices. This utility model solves the problems of measurement error superposition, unstable output, and insufficient measurement range in traditional detection devices.

The invention belongs to the technical field of long-distance road construction, and particularly relates to a long-distance road construction organization scheduling method. Digital twinborn model construction and resource digitization: fusing a BIM design model, GIS geographic data and construction organization design, realizing data mapping of a geographic environment layer-a construction entity layer-a management element layer through a RESTful API interface, and constructing a dynamic virtual model. According to the long-distance road construction organization scheduling method, three large cross-domain technologies of digital twinning, 5G + edge calculation and a gradient boosting tree algorithm are applied to long-distance road construction scheduling. The problem that traditional construction scheduling mostly depends on experience and simple statistics is solved, and the technical bottleneck of low process construction period prediction precision is solved by introducing a machine learning algorithm to process multi-dimensional construction data such as historical progress, mechanical state and environmental data; the method is achieved through collaborative optimization of all technical modules.

The invention relates to the technical field of gas pressure reduction, in particular to a two-stage pressure reducer which comprises a valve body formed by connecting a main body and an aluminum upper cover in a threaded mode, and further comprises a gas source connecting mechanism arranged at a gas inlet in the main body and configured to be connected with an external gas source and filter entered gas; the two-stage pressure reduction mechanism is arranged in the gas source connecting mechanism and the parent body and is used for performing two-stage pressure reduction on the entering gas; the gas outlet mode of the flow meter is an OUT mode, and the flow meter is fixedly installed at the end of the main body through an adapter and is configured to display the flow of output gas; the gas flow channel is arranged in the parent body and is configured to introduce the gas subjected to two-stage pressure reduction into the flow meter and prolong the flow path of the gas in the parent body, so that the gas exchanges heat with the parent body before flowing into the flow meter; according to the gas pressure reducer, the gas flow channel is formed in the parent body, and the problem that gas is frozen when an existing gas pressure reducer works for a long time or is in a low-temperature environment is ingeniously solved.

The present disclosure provides a piezoelectric self-feedback excitation type micro electric field sensor, an electric field detection method and a sensor, and is applied to the technical field of electric field sensors. The piezoelectric self-feedback excitation type micro electric field sensor comprises: a substrate for supporting a vibration pickup reference structure, a piezoelectric driving structure, a mutual shielding electric field sensing structure and an elastic beam; the piezoelectric driving structure is used for deforming the piezoelectric driving structure to make the elastic beam vibrate when a driving voltage is applied to the piezoelectric driving structure; the mutual shielding electric field sensing structure is used for outputting a differential form of a sensing current signal in response to the vibration of the elastic beam, so as to suppress common mode noise and detect the amplitude strength of the electric field to be measured; the vibration pickup reference structure is used for outputting a reference current signal in response to the vibration of the elastic beam, so as to adjust the size of the driving voltage, so that the output sensitivity of the piezoelectric self-feedback excitation type micro electric field sensor is a predetermined value.

The invention discloses an elevator intelligent maintenance method and device based on DGConv and an improved CBAM attention mechanism, and the method comprises the steps: firstly obtaining fault-related continuous data and discrete data based on an elevator mainboard, carrying out the data length alignment of the continuous data through dynamic time warping, and combining with the discrete data to construct an elevator fault prediction data set; then, constructing a CNN-Transform hybrid neural network of cavity global convolution and an improved CBAM attention mechanism for predicting the occurrence probability of various faults at the next moment, and performing training based on an elevator fault prediction data set; and finally, fault maintenance priorities are allocated to different faults according to the fault probabilities, and a targeted intelligent maintenance strategy is generated. The method provided by the invention has a remarkable effect in intelligent maintenance of the elevator, can greatly reduce the manpower and material resource overhead of a traditional maintenance method, saves the maintenance time, and optimizes the maintenance strategy.

The utility model discloses a kind of ear-clamping type bluetooth earphone and its charging box, a kind of ear-clamping type bluetooth earphone, including machine core component, sound production component and the ear clip part of connecting machine core component and sound production component, sound production component includes loudspeaker shell, loudspeaker and reflection sound cone, sound cavity is equipped in loudspeaker shell, sound cavity bottom side is equipped with the sound outlet of intercommunication sound cavity, loudspeaker and reflection sound cone are assembled in sound cavity, the conical surface of reflection sound cone is opposite to loudspeaker, so that the sound wave produced by loudspeaker vibration is reflected to sound outlet output by reflection sound cone reflection.A kind of charging box, including charging box body and the above bluetooth earphone, earphone slot is equipped on charging box body, ear-clamping type bluetooth earphone is contained in earphone slot, hinged cover is hinged on charging box body.The utility model is through the reflection of reflection sound cone, sound wave does not stay too much in shell and produce wave interference, sound wave aims at sound outlet output, then transmission to user's ear canal, improve sound quality, improve the listening experience of user.

The invention relates to the technical field of ocean platform pipeline design, in particular to an ocean platform pipeline laying method based on reinforcement learning, and the method comprises the following steps: S1, dispersing a pipeline laying region into a three-dimensional grid matrix according to the physical size of an actual cabin of an ocean platform, and marking a pipeline starting point, a pipeline ending point and an impassable region; s2, performing Q-Learning algorithm parameter initialization configuration, defining an action space adaptive to the linear movement characteristics of the ocean platform pipeline, constructing a Q value matrix adaptive to three-dimensional space coordinates and actions, and performing initialization; s3, entering a training round, and continuously updating the value evaluation matrix by dynamically adjusting a greedy criterion, a multi-dimensional reward mechanism and a time sequence difference learning rule; and S4, after the training is completed, starting from the starting point based on the converged Q value matrix, selecting an optimal action through a greedy to generate a final pipeline path, and improving the quality and search efficiency of pipeline laying on the ocean platform.

The application discloses a parallel hole damping-spiral tube inerter underwater damping device and belongs to the technical field of underwater vibration control. The device comprises an upper shell, a lower shell, a damping spring, an open small hole damping and an open fluid inerter. The upper shell and the lower shell are two parts in relative sliding. The damping spring and the open small hole damping are assembled in parallel to form an integral body, which together constitutes an open spring damping. The open spring damping and the open fluid inerter are connected in parallel, and the upper and lower ends of the two are respectively fixed to the upper shell and the lower shell. The open small hole damping and the open fluid inerter are both installed in the upper shell and the lower shell. The application adopts a parallel topology structure of inerter, damping and spring. The double spiral pipes and the symmetrical piston rods realize the fluid inerter effect in two directions. The small holes on the damping piston realize the speed-dependent throttling damping. The device has the characteristics of wide frequency vibration isolation, strong static load capacity, symmetrical positive and negative characteristics and deep water environment.

The utility model relates to cleaning device technical field discloses a kind of manual washing board device, including fixed pipe, the outer wall side of fixed pipe is communicated with extraction mechanism, the extraction mechanism is used to facilitate extrusion, the outer wall bottom of extraction mechanism is fixedly connected with shunt mechanism, the shunt mechanism is used for liquid distribution, the inner wall bottom of fixed pipe is fixedly connected with silica gel pipe, the outer wall top of fixed pipe is fixedly connected with branch pipe, and the outer wall bottom of fixed pipe is installed washing liquid barrel;The extraction mechanism includes connecting pipe, and the connecting pipe is fixedly connected at the outer wall one end of fixed pipe, and the other end of connecting pipe is communicated with tee pipe.The utility model in the present application, pour washing liquid into washing liquid bottle and place high place, one end of silica gel pipe is inserted into liquid level, and the other end valve is used as switch, by siphon principle, form pressure difference and extract washing liquid, adjust valve flow rate, save manpower expenditure, improve work efficiency.

The high-precision reversing valve comprises a valve body assembly and a valve element assembly, the valve body assembly comprises a valve element pipeline part, a feeding pipeline part, a first pressure pump pipeline part and a second pressure pump pipeline part, and a large-flow channel, a small-flow channel and a feeding channel are formed in the valve element assembly; and in the small discharging state, the small flow channel is communicated with the second pressure pump pipeline piece and the discharging port, and the feeding channel is communicated with the first pressure pump pipeline piece and the feeding pipeline piece. When small-flow discharging is carried out, the actual discharging amount completely comes from paint in the second pressure pump pipeline piece, accurate control over the discharging amount is facilitated, meanwhile, no matter large-flow discharging or small-flow discharging is carried out, paint in the other pressure pump pipeline piece and the valve element pipeline piece can flow back into the feeding pipeline piece synchronously, and therefore the working efficiency is improved. And the coating fully flows, so that the coating is prevented from being solidified, and the discharging precision is improved.

The application relates to a SPAD histogram distance calculation method and system based on coarse-precision two-stage mixed processing. The method comprises the following steps: performing full-width fast target detection on a photon time-of-flight histogram generated based on SPAD and TCSPC technology through first-stage processing to obtain coarse distance information corresponding to a target; dynamically judging whether to start second-stage processing on the target according to signal characteristics corresponding to the coarse distance information; if it is judged to start second-stage processing, performing high-precision peak position positioning on the target time window corresponding to the coarse distance information through second-stage processing to obtain accurate time-of-flight information of the target; if it is judged not to start second-stage processing, directly taking the time-of-flight corresponding to the coarse distance information as the final time-of-flight information of the target; and converting the final time-of-flight information of the target into an accurate measurement distance through a preset mapping relationship between the speed of light and the distance to simultaneously meet real-time requirements and power consumption control.

This application relates to the field of medical data processing technology and discloses a method and system for screening infertile patients with polycystic ovary syndrome (PCOS). The method includes: acquiring data on the number of antral follicles, anti-Müllerian hormone (AMH) concentration, and ovarian volume from multiple patient monitoring cycles; performing feature extraction and normalization to obtain a set of normalized feature vectors; determining the synchronous relationship between the number of antral follicles and ovarian volume based on the vector set, and identifying signs of asynchronous changes; combining hormone concentrations for joint grouping to obtain the distribution of abnormal indicator clusters and identifying ovarian function stage markers; performing sequence matching based on the stage markers of continuous cycles and historical medical records to generate an ovarian function progression trajectory curve; extracting inflection point features from the curve and performing causal association rule mining to construct a logical chain between abnormal indicators and clinical outcomes; and determining conditions layer by layer according to the logical chain to output the final screening results. This application improves the accuracy of screening infertile patients with PCOS.

This utility model provides a batching device for renewable concrete. The device features a base with feet connected to its bottom, a shell connected to the top of the base, a cover plate connected to the top of the shell, a feed hopper connected through the top of the cover plate, a rotating component connected to the bottom of the base for mixing and stirring the renewable concrete, and a discharge component connected through the top of the base. A guide ring is connected to the inner arc surface of the shell, the inner arc surface of which is conical, with the conical slope of the inner arc surface inclined towards the conical grinding component. A gap exists between the inner arc surface of the guide ring and the outer arc surface of the conical grinding component. Addressing the problem of jamming in traditional mixing devices, this utility model, through a combination of a grinding component and a pressing roller, can crush lumpy impurities in the raw materials during the mixing process, thus ensuring mixing stability while preventing jamming within the device.

The invention discloses a lithium battery equalization method based on improved fuzzy control, which aims at solving the problems of low single variable control precision and poor fixed universe adaptability in the existing equalization method, and comprises the following steps: firstly, dividing SOC into different intervals through battery OCV-SOC characteristic analysis, and preferentially carrying out voltage equalization in an extreme SOC interval to avoid overcharge and overdischarge; sOC equalization is preferentially carried out in the middle SOC interval so as to improve the energy transfer efficiency. A voltage and SOC dual fuzzy controller is designed, a variable universe fuzzy controller is introduced to dynamically adjust an input variable universe, the universe is expanded at the initial stage of equalization to accelerate response, and the universe is shrunk at the later stage of equalization to improve precision. And further designing a self-adaptive fuzzy controller, taking the SOC mean value and the equalizing current as input, and dynamically outputting a weight coefficient of a double-fuzzy controller, thereby realizing self-adaptive switching of the equalizing strategy under different SOC intervals. According to the invention, the equalization precision and efficiency are effectively improved, and the robustness and safety of the system are enhanced.

The invention provides an atomizer system based on inspiration airflow sensing adjustment and an adjustment method, and relates to the technical field of medical instruments, and the atomizer system comprises an atomizer body, an airflow sensing module, a control module, an atomization output adjustment module and a voice broadcast module. The airflow sensing module is used for sensing inspiration airflow and converting the inspiration airflow into electric signals. The control module and the airflow sensing module are used for receiving the electric signals and sending control instructions. When the inspiration airflow intensity corresponding to the electric signal is lower than a preset threshold value, a reminding instruction is sent, the atomization output adjusting module is used for adjusting the atomization output quantity of the atomizer body according to a control instruction, and the voice broadcast module is used for receiving the reminding instruction and outputting electronic voice prompt information. Atomization output is matched with the inspiration state in real time, medicine loss is effectively reduced, and the medicine utilization rate is increased; by establishing mathematical models for different nebulizer types and combining breathing parameter correction, individualized accurate adjustment is achieved, and the treatment effect is improved.

The application discloses a kind of for bicuspid valve clamp surgery navigation multi-modal image automatic registration method, comprising the following steps: acquisition patient preoperative heart CTA image, intraoperative CBCT image and intraoperative TEE image / corresponding perspective image, and the CTA, CBCT and TEE image of this acquisition are pretreated;Complete CTA to CBCT three-dimensional automatic coarse registration, establish unified patient coordinate system, and combine with heart and breathing motion compensation, dynamic fine registration is carried out to coarse registration result;Estimate TEE probe pose and imaging plane, identify the common visual target in TEE and CBCT / perspective, complete TEE and CBCT / perspective dynamic automatic registration;Under unified coordinate system, fuse each modality image, generate the multi-modal navigation interface and navigation information of surgery.The method of the application can realize automatic, fast, accurate multi-modal space registration, improve the standardization degree and safety of bicuspid valve clamp surgery navigation.

The invention discloses an opening and closing control method and system for a water conservancy project sluice, and the method comprises the following steps: collecting water conservancy environment parameters and sluice operation parameters in real time, and obtaining parameter data; preprocessing the parameter data to obtain effective monitoring data; constructing a water gate opening and closing model, inputting the effective monitoring data into the water gate opening and closing model, and outputting target control parameters of the water gate; comparing the sluice operation parameter with a target control parameter of the sluice to obtain a difference value; generating a sluice adjustment instruction based on the difference value, driving the sluice to a target position according to the sluice adjustment instruction, and feeding back the sluice position state information terminal in real time; the conversion from single parameter control to multi-feature collaborative decision is realized through multi-dimensional parameter acquisition, the operation parameters of the water gate are accurately controlled by constructing the water gate opening and closing model, the accurate control of the opening degree of the water gate is realized, the model output is more accurate, and the water resource scheduling efficiency is improved.

The application belongs to the technical field of emergency help equipment, and provides an emergency help signal panoramic projection device, method and terminal, the device can continuously detect the spatial posture and rotating motion state of itself through the environment positioning module, generate corresponding posture data and direction data, the control module can obtain the data and determine the real-time projection pointing angle of the device, and then when the device rotates, the projection control instruction corresponding to the real-time projection pointing angle is generated and sent to the image projection module, so that the image generation unit in the image projection module drives the corresponding rotating transformation of the help image, and the light source in the image projection module irradiates the help image to project the visual help signal which is right and complete. The scheme realizes omnidirectional controllable intelligent projection, can make the help signal cover all directions, at the same time ensures that the projected image can be clearly observed, is more easily identified by the rescuer, reduces the delay caused by signal blur, and improves the probability of being rescued by the help seeker.

The present application relates to a kind of IFC file packaging data processing method for steel structure material list, one: opening file;Two: confirm whether IFC file;Three: attempt to read IFC model file;Four: confirm whether file is read successfully;Five: file is written into memory for subsequent traversal;Six: traverse entire file in memory and find IFC "product" class;Seven: remove duplicate entity class name;Eight: select one kind of IFC "product" class of list, traverse all relevant data of the class and write into memory;Nine: relevant processing is carried out to multiple packaging data.The program function is positioned clear, it is convenient for front-line material statistical personnel to use, and low hardware requirement.

The application relates to a non-motor vehicle trajectory prediction method, which comprises the following steps: calculating a feasible domain of a terminal point of a non-motor vehicle to be detected based on to-be-predicted scene information, and obtaining a feasible terminal point set through discrete sampling; adopting a deep learning model which is constructed and trained in advance, and generating an alternative trajectory set of the non-motor vehicle to be detected according to the to-be-predicted scene information and the feasible terminal point set; adopting a behavior analysis model of the non-motor vehicle which is constructed in advance, evaluating the alternative trajectory set, and selecting a maximum utility trajectory; and the behavior analysis model is used for calculating trajectory utility, and the trajectory utility is quantified as a sum of expected trajectory risk and trajectory efficiency heterogeneity. Compared with the prior art, the application can adapt to the flexible and changeable behavior characteristics of the non-motor vehicle, has certain advantages in eliminating cumulative errors in iterative prediction and trajectory prediction for sudden behaviors of the non-motor vehicle, and greatly improves the accuracy and reliability of the non-motor vehicle trajectory prediction.

The invention provides a propeller phase synchronous measurement device and method based on U-NET feature recognition, and belongs to the technical field of flow field measurement, and the device comprises a test water tank, a to-be-measured object is installed in the test water tank, the four sides of the test water tank are provided with light-transmitting windows, and optical observation and measurement are carried out; the feature capture high-speed camera is arranged on a window on any side of the test water tank, and the water prism is arranged on a window of an observation surface of the test water tank where the feature capture high-speed camera is located; the active control processing system controls synchronous triggering of the feature capturing high-speed camera and the measuring equipment through the synchronous signal controller and records collected data. According to the invention, the characteristic capturing high-speed camera after algorithm learning is used for accurately positioning and outputting required phase angle information, so that the purpose of testing and measuring a flow field at a certain specific angle is achieved; and an indispensable data basis is provided for verifying and improving related unsteady flow physical models, optimizing hydrodynamic performance of fluid machinery and inhibiting flow instability.

The invention relates to the field of wireless communication networks, and provides a self-adaptive sum-difference channel phase compensation method based on double-flow feature fusion, which comprises the following steps: receiving a non-cooperative target satellite signal, constructing a spatial network pre-training data set in combination with antenna beam pointing, and pre-training a spatial network model to output a static phase difference compensation predicted value; constructing a time network pre-training data set based on the historical phase deviation cached by the register and the temperature difference value of the environment sensor, and pre-training a time network model to output a phase difference change trend predicted value; and carrying out feature fusion on the static phase difference compensation predicted value and the phase difference change trend predicted value, carrying out training through a fusion network model, outputting a final phase compensation value of a sum-difference channel, and driving a digital phase shifter to carry out real-time phase correction. Through heterogeneous feature separation of a spatial stream and a time stream, the phase compensation precision and the environmental robustness are greatly improved, and particularly, accurate output of sum-difference channel phase compensation is ensured in a complex dynamic scene.

The utility model provides an air compressor waste heat intelligent heating regulation and control device, and relates to the technical field of heating regulation and control devices, the air compressor waste heat intelligent heating regulation and control device comprises a base and a machine body, and a snakelike heat conduction pipe is fixedly installed in the machine body. The second motor is started, the output end of the second motor drives the lead screw to rotate, due to the fact that the lead screw is in threaded connection with the sliding block, and the sliding block is in sliding connection with the guide column, under the limiting effect of the guide column, the sliding block can do linear motion in the direction of the lead screw, the sliding block drives the toothed bar to move synchronously through the connecting rod, and due to the fact that the gear is meshed with the toothed bar, the toothed bar can move synchronously. The toothed bar moves to drive the gear to rotate, then the rotating shaft and the air guide plate fixed to the rotating shaft are driven to change the angle, by adjusting the angle of the air guide plate, the air circulation amount and the heat dissipation area can be controlled, the heat dissipation degree can be precisely adjusted and controlled, heat output by the device is made to be matched with actual requirements, and compared with a traditional waste heat heating device, the device has the advantages that the cost is reduced. And heat output is more intelligent and accurate, and the heating effect and the comfort degree are improved.

The invention relates to the technical field of pipeline design, and discloses a large-scale water delivery pipeline deepening design method based on a visual programming language, and the method comprises the steps: extracting key data from a design drawing of a water delivery pipeline, and carrying out the preprocessing to obtain standard key data; determining spatial information of the plurality of control points based on the standard key data, and constructing a three-dimensional pipe section model according to the spatial information; preset section parameters are obtained, a three-dimensional entity pipeline model is generated in combination with the three-dimensional pipe section model, and key nodes are added for the three-dimensional entity pipeline model in combination with preset key node parameters; and engineering drawings and part expansion drawings of the components and the parts are generated based on the numbers. Through the cross-platform data engine, full-link automatic processing of design drawing-three-dimensional model-construction drawing-manufacturing drawing data is achieved, the parameterization degree of pipeline design is improved, the deepening design efficiency and precision are improved, and quick response can be achieved by means of the architecture of standard key data and a parameterization model in the face of design change.

The present application provides an image stitching method, device, equipment, storage medium and product, the image stitching method comprises the following steps: fusing the shooting distance value between a plurality of shooting devices and the imaging target surface to generate the reference distance feature corresponding to each frame image; inputting the reference distance feature into a pre-trained stitching parameter prediction model to obtain the stitching parameter required for the current frame image stitching; based on the stitching parameter, the images collected by the plurality of shooting devices are initially stitched to form an initial panoramic image; the region of interest is set in the boundary region of the initial panoramic image, and the images in the region of interest are pre-adjusted; the pre-adjusted initial panoramic image is processed to obtain a final panoramic image. The method can fuse the distance between the shooting device and the imaging target surface in real time, and dynamically update the related stitching parameters according to the distance, combine the image features for fine fusion, and avoid the problems of stitching delay and obvious stitching effect fluctuation.

This disclosure relates to batch normalization layers. The present invention provides methods, systems, and apparatus for processing input using a neural network system including a batch normalization layer, comprising a computer program encoded on a computer storage medium. One method includes: receiving a corresponding first layer output for each training example in the batch; calculating a plurality of normalization statistics for the batch based on the first layer outputs; normalizing each component of each first layer output using the normalization statistics to generate a corresponding normalized layer output for each training example in the batch; generating a corresponding batch normalized layer output for each training example from the normalized layer outputs; and providing the batch normalized layer outputs as input to a second neural network layer.

The application discloses a quantitative prediction method for atmospheric pollutant corrosion rate of metal under multi-gas coupling effect, relates to the technical field of atmospheric corrosion science and industrial protection, and comprises the following steps: step one, constructing a multi-gas corrosion rate calculation basic framework; taking the rate threshold value data of metal in a graded corrosion environment, the framework provides a unified operation platform for subsequent integration of other gases and adaptation of different metals. The quantitative prediction method for atmospheric pollutant corrosion rate of metal under multi-gas coupling effect realizes full-coverage quantitative analysis of the corrosion effects of three core atmospheric pollutants, namely Cl ‑ , H2S and NH3, effectively solves the technical difficulty that Cl ‑ cannot be independently calculated in the prior art, and realizes precise coupling and linkage calculation of Cl ‑ , H2S and NH3 by converting Cl into a dedicated corrosion contribution item.

The application relates to the technical field of automobile tailboard control, and discloses a sensor signal feedback method of an automobile tailboard, which specifically comprises the following steps: S11: a vehicle-mounted system sends a control signal of automobile tailboard action and an action type of the control signal, and an automobile tailboard executes the acquired signal and the action type; S12: when the automobile tailboard executes the signal and the action type, a built-in sensor is triggered, and the built-in sensor sends a stop signal to the vehicle-mounted system; S13: the vehicle-mounted system sends the control signal and the action type of the control signal to the automobile tailboard again, and the automobile tailboard executes the corresponding signal and action type again. According to the application, the state of the tailboard system is known through cooperation of the built-in sensor and the external sensor, after the control signal of the automobile tailboard action, the sensor can quickly identify and feed back the signal after the action of the automobile tailboard, so that damage of the equipment caused by too much moving distance of the automobile tailboard or too large extrusion force from the outside world is avoided.

The application relates to the field of gas detection, in particular to a quartz tuning fork gas sensing device based on diamond-like coating enhancement, which comprises sequentially connected laser signal emitting units, light absorption cells, lenses, quartz tuning forks and electric signal collecting units, the surface of the quartz tuning fork is coated with a diamond-like coating; target light signals generated by the laser signal emitting units are transmitted to the light absorption cells; the light absorption cells contain target gases to be detected, and light signals interact with the target gases in the light absorption cells; the lenses focus the light emitted from the light absorption cells to the surface of the quartz tuning fork coated with the diamond-like coating. Compared with the prior art, the application can sensitively capture slight changes caused by trace gases, convert the changes into obvious electric signals, and the electric signals have a good linear relationship with the gas concentration, so that low-concentration gases can be measured with high precision.