75 results about "Radar detector detector" patented technology

The invention relates to the technical field of safety equipment, in particular to a bird repelling method and a bird repelling device based on directional sound waves and biological warning sound, and the bird repelling method comprises the following steps: recording alarm sound of specific birds, and performing sound analysis on the recorded alarm sound; a sound synthesis technology is utilized to generate a sound signal which is similar to an original alarm sound but is adjusted, the generated sound signal is subjected to amplitude and frequency simulation to obtain a sound with a higher emergency degree, and the adjusted sound signal is sent to a target bird in a directional sound wave mode through a directional wave sounder. Therefore, the purpose of expelling or warning is achieved. The bird repelling device mainly comprises a power management module, a directional wave sounder, an infrared sensor, a wireless communication module, a main control board and the like, and the main control board controls a steering engine to rotate to drive an infrared radar detector to detect surrounding birds. When birds are detected, the main controller can control the left-right steering engine and the pitching steering engine to emit directional sound waves in the direction where the birds are detected to expel the birds.

The utility model relates to the technical field of national defense education, in particular to a fort 3D model teaching aid which comprises a bearing platform, a fort assembly and an auxiliary assembly are arranged on the top of the bearing platform, and the auxiliary assembly is located on the side face of the fort assembly. The angle of the coil gun barrel can be adjusted during demonstration, meanwhile, the coil gun barrel can be adjusted up and down through the adjusting rod, the movement track of the gun barrel can be demonstrated in multiple directions, the shell filling process can be demonstrated by opening the sealing cover, operation is convenient, observation is convenient during teaching, and by arranging the auxiliary assembly, the teaching efficiency is improved. Due to the fact that the two radar detectors are installed, the situation in a nearby area can be known conveniently in actual operation, the safety reminding function is achieved, meanwhile, the situation that the working state is affected due to insufficient signals is avoided through radio, the device can be connected with other moving tools through the traction hole and the hanging rod, and then functionality and practicability are improved.

The utility model discloses a fast-assembly type detection device for train approach alarm, which comprises a stand column, the stand column comprises a base arranged at the bottom of the stand column, a concave plate transversely arranged at the top of the stand column and a connecting column capable of being rotatably arranged in an inner cavity of the concave plate, and the outer end of the connecting column extends out of the concave plate. Inserting grooves a are further formed in the two sides of an inner cavity of the concave plate, limiting plates b are inserted into inner cavities of the inserting grooves a, and the connecting columns are lapped on the limiting plates b. The control box is arranged on the outer wall of the stand column, a hoop is arranged on the rear side of the control box through bolts and nuts, and the hoop tightly holds the stand column; the radar detector is inserted into the outer end of the outer wall of the connecting column; and the plug pin is inserted into the outer wall of the connecting column. According to the fast-assembly type detection device for train approach alarm, fast disassembly and assembly between the radar detector and the photovoltaic panel and the whole device can be achieved, the installation time is shortened, and fast deployment and maintenance are facilitated.

The invention discloses an unfavorable geologic body identification method, system and equipment during tunneling of a TBM (Tunnel Boring Machine), and relates to the technical field of tunnel advanced geological forecast. Radar detectors with different frequencies are mounted on a cutterhead of the TBM, and geologic body data of different distances and different precisions of a geologic body in the tunneling process are obtained during tunneling of the TBM; a high-resolution three-dimensional image is generated according to the phase differences of the geologic body in different time periods, and a three-dimensional recognition model is constructed according to the phase differences of the geologic body in different detection distances in different time periods, so that precise recognition of the unfavorable geologic body is realized; in the process, radar detectors with different frequencies are adopted to obtain detection data with different precisions and different distances, so that organic combination of the detection distance and the detection precision is realized, comprehensive and accurate geological information can be extracted from the detection data, and the unfavorable geologic body can be comprehensively and accurately identified.

The embodiment of the invention discloses an obstacle recognition method and device based on fusion calculation, equipment and a storage medium, and relates to the technical field of equipment control. The method comprises the following steps: obtaining point cloud data through a radar detector, and obtaining image data through an image collector; performing semantic segmentation on the image data to obtain semantic information of each pixel point in the image data; and projecting the point cloud data to the image data with the semantic information, and identifying an obstacle in front of the unmanned equipment according to the semantic information corresponding to the projection point of the radar point. According to the technical scheme, the point cloud data acquired by the radar detector can be projected to the image data with the semantic information to identify whether the obstacle exists in the current environment of the unmanned equipment, so that the unmanned equipment can more comprehensively and reliably perceive the obstacle, and the accuracy of obstacle identification is effectively improved.

The utility model relates to the technical field of robots, in particular to a wheel-foot robot which comprises a trunk, a thigh assembly, a shank assembly and an adjusting assembly. The bottom of the trunk is of a center control structure, the top of the trunk is provided with a radar detector, one side of the trunk is provided with an ultrasonic sensor, the tops of the thigh assemblies are fixedly connected with the side wall of the trunk, the tops of the shank assemblies are hinged to the bottoms of the thigh assemblies, and the bottoms of the shank assemblies are connected with wheels. According to the robot, automatic switching between wheel type movement and foot type movement can be automatically achieved according to different road conditions, the requirements of the robot for different road conditions are met, and the energy utilization rate of the robot is further increased.

The present invention relates to a spatial carbon emission monitoring method, system, medium and equipment, which adopts automatic monitoring means such as remote sensing and radar, integrates multiple data sources such as spectral information, radar detectors, and process parameters, and can fully perceive the carbon emission status inside industrial buildings, and can realize real-time collection and dynamic monitoring of spatial carbon emissions of industrial buildings, instead of relying on manual records and data reporting, reducing the problems of time lag and missing edge data. Through deep learning technologies such as kernel PCA, ICA, neural networks, etc., more effective data features can be extracted from multidimensional features, making the predicted carbon emissions more accurate, thereby improving the accuracy of monitoring. By integrating monitoring data into the BIM model, the visual presentation of carbon emission information is realized, which is convenient for managers to grasp and analyze the carbon emission dynamics of industrial buildings in a timely manner.

The utility model discloses a device for detecting and early warning the safety of a surrounding environment when a heavy-duty commercial vehicle is started, which relates to the technical field of intelligent detection of vehicles and comprises a detection device powered by a power supply module of the vehicle. The detection device is in communication connection with a vehicle-mounted communication terminal on a vehicle, and comprises a control module, and a plurality of radar detectors, infrared detectors, image acquisition cameras and lighting devices which are connected with the control module, each radar detector, each infrared detector, each image acquisition camera and each lighting device are integrated into a group and are installed in the same area, and signal capture areas of the radar detectors, the infrared detectors and the image acquisition cameras are overlapped. When a vehicle is started during driving, under common signal acquisition of the radar detector and the infrared detector, misjudgment caused by external factor interference, local damage or different working principles is avoided, and driving safety is improved.

The invention discloses a measuring and heating system integrated cargo hold which comprises a cargo hold measuring part which comprises a liquid level measuring part and a high-position alarming part, the liquid level measuring part is arranged on a cargo oil hatch cover of the cargo hold and measures the liquid level height of asphalt injected into the cargo hold, and the high-position alarming part is arranged on the cargo oil hatch cover and measures the liquid level height of asphalt injected into the cargo hold. The alarm module is used for sending an alarm signal when a cargo hold is filled with asphalt with preset capacity and automatically closing an asphalt filling pump in time; the asphalt heating piece is used for heating asphalt in the cargo hold and improving the fluidity of the asphalt; and the cabin body cleaning part is arranged on the cargo oil cabin cover and used for performing high-pressure cleaning on the inner wall of the cargo cabin after unloading is completed. According to the method, the integrity of the whole cargo hold is effectively guaranteed, and the safety risk possibly caused by opening of the cargo hold and the cargo tank is reduced; the high-pressure water is prevented from carrying asphalt to impact and adhere to the radar detector, the radar detector is prevented from being damaged, the measurement reliability and accuracy are reduced, and the maintenance cost is increased.

The utility model relates to an offensive and defensive bulletproof wallboard used at night, in particular to an offensive and defensive bulletproof wallboard used at night, which is used for a sentry and a barrack composed of the offensive and defensive bulletproof wallboard used at night, and can be used for discovering enemies in the first time even under the condition that the night covers, so that combatants are in an autonomous offensive and defensive state. The battlefield reconnaissance radar comprises a bulletproof wall plate, a strong light searchlight is arranged on the bulletproof wall plate, whether the strong light searchlight is started or not is controlled by a battlefield reconnaissance radar detector, a bulletproof observation window is arranged in the bulletproof wall plate, and a bulletproof shooting window is located below the bulletproof observation window. The sentry post or barrack has the advantages that passive combat duty and sleep are changed into active combat duty and rest at ease, the sentry post or barrack is prevented from being stolen and attacked, when enemy conditions are found, warnings can be given at the first time to remind soldiers to prepare for combat, sneak and attacked enemies can be exposed under the strong light searchlight, and the sneak and attacked enemies are prevented from being stolen and attacked by the sneak and attacked enemies in the sneak and attacked enemies in the sneak and attacked enemies in the sneak and attacked enemies. And the soldiers can kill the enemy.

The utility model relates to the technical field of intelligent bird repelling, in particular to an intelligent all-weather bird repelling device which comprises a base, a connecting seat, a radar detector and a connecting frame, the connecting seat is rotationally arranged on the base, the radar detector is installed on the connecting seat, and the connecting frame is fixedly connected to the connecting seat. Radio waves are emitted through a radar detector, the radio waves are reflected back when encountering birds, after a radar receives reflected signals, a camera monitors the birds by capturing images, the computer vision technology is used for analysis and recognition, and an infrared temperature detector measures the infrared radiation quantity of the surrounding environment. According to the device, the infrared image is extracted from the infrared image to confirm whether the birds exist or not, so that the device is a triple detection mechanism, different environments are adapted, the situation of misjudgment or missing detection is avoided, and when one of the three detection components detects the birds, a signal is transmitted to the controller, so that the controller starts the alarm and the laser transmitter to repel the birds.

The invention relates to the technical field of wind power generation, in particular to a wind turbine generator monitoring system and method based on millimeter wave radar. A millimeter wave communication module; an antenna array optimization arrangement module; a data storage module; a data analysis module; an intelligent early warning module; a man-machine interaction module; and a power supply module. According to the invention, a full-link monitoring system is constructed by taking a millimeter wave radar technology as a core, and non-contact high-precision sensing is realized. Through multi-module cooperation and algorithm innovation, environmental adaptability and monitoring reliability are greatly improved, and industrial pain points such as electromagnetic interference and shielding are effectively avoided. The system is flexible in deployment and convenient to operate and maintain, supports all-weather unattended operation, can early warn potential fault risks in advance, and restrains major safety accidents from the source. An intelligent data analysis and grading early warning mechanism provides scientific support for predictive maintenance of the wind turbine generator set, and unplanned shutdown loss is remarkably reduced.

A method for automatically activating a video conference meeting device, wherein the video conference meeting device includes a power supply, a main processor and a plurality of peripheral components, and a radar detector connects to the video conference meeting device, the method comprises (a) the radar detector detecting with a radar detection coverage when the video conference device is in a standby state; (b) when the radar detector detects an object appearing in the radar detection coverage, obtain a position of the object detected in the radar detection coverage; (c) the radar detector obtaining boundary information of an effective zone and determining whether the position of the detected object is within the effective zone; (d) when the radar detector determines that the position of the detected object is within the effective zone, activating the video conference meeting device which loads an operation program.

The utility model discloses a building wall body quality detection device, relates to the technical field of wall body quality detection, solves the problems that the existing wall body quality detection device needs to be held by a person to detect a wall body, time and labor are wasted, and the detection efficiency is relatively low, and comprises a detection assembly and a bearing frame for bearing the detection assembly, the detection assembly comprises an ultrasonic probe, an infrared camera and a radar detector, the bearing frame comprises a base, a vertical frame, a transverse frame and a bearing seat, three electric push rods are fixedly mounted on one side of the bearing seat, a connecting plate is fixedly mounted at the telescopic ends of the electric push rods, a mounting cylinder is fixedly connected to one side of the connecting plate, and the mounting cylinder is fixedly connected to the other side of the bearing seat. The ultrasonic probe, the infrared camera and the radar detector are installed in the three installation cylinders respectively. Through the arrangement of the bearing frame, comprehensive detection of the whole wall body is realized, a worker does not need to hold the device by hand for detection, time and labor are saved, and the detection efficiency is improved.

In accordance with a first aspect of the present disclosure, a radar system is provided, comprising: a plurality of receive channels; a first radar detector stage configured to detect, through said receive channels, at least one target using a detector threshold; a noise correlation determination unit configured to determine a noise correlation level indicative of noise correlation between the receive channels if the first radar detector stage has detected the target; a detector threshold adjustment unit configured to adjust the detector threshold in dependence on the noise correlation level determined by the noise correlation determination unit; a second radar detector stage configured to detect the target using the adjusted detector threshold. In accordance with a second aspect of the present disclosure, a corresponding method of operating a radar system is conceived.

The application provides a cable curtain wall deformation monitoring method, and belongs to the technical field of building construction. The cable curtain wall deformation monitoring method comprises the following steps: fixing a reinforcing device at a glass connection; each reinforcing device is provided with an angle adjusting mechanism, and a radar detector is fixed on the angle adjusting mechanism; the angle adjusting mechanism can drive the radar detector to rotate at multiple angles; the radar detector monitors distance data at different angles in real time, and transmits the data to an upper computer; the upper computer analyzes the data and performs real-time monitoring; the angle adjusting mechanism comprises a rotating shaft and a rotating block, the rotating shaft is fixed above a pull rod in a threaded manner, the rotating shaft is movably connected with the rotating block, and the side surface of the rotating block is fixed with the radar detector. The application can solve the problem that the curtain wall is prone to deformation, damage and even collapse to cause safety hazards under the condition of long-time use.

The machining integrated equipment comprises a vehicle body, radar detectors are arranged on the four side faces of the vehicle body correspondingly, a multi-axial mechanical arm is arranged at the top of the vehicle body, and one end of the multi-axial mechanical arm is fixedly connected with a positioning clamping mechanism; the positioning and clamping mechanism comprises a first servo motor, a clamping arm and a second servo motor, and has the beneficial effects that the arranged multi-axial mechanical arm can drive the positioning and clamping mechanism to get close to a to-be-taken machining tool for butt joint and clamping and fixing, then the first servo motor is started to drive the clamped and fixed machining tool to rotate, and the machining tool is clamped and fixed; and the multi-axial mechanical arm is matched to drive the machining cutter to machine the to-be-machined object, and during machining, the machining cutter can be replaced for use, so that the to-be-machined object can be integrally machined, and the machining efficiency can be improved.

The invention relates to the technical field of highway bridges, and discloses a multi-source data fusion highway bridge safety early warning system and method, and the system comprises a hardware assembly. The hardware assembly comprises a vibration sensor, a pressure sensor, a load sensor, a radar detector, a 8-megapixel snapshot box camera and a light supplement lamp. According to the multi-source data fusion highway bridge safety early warning system and method, for convenient and flexible man-machine interaction, a plurality of communication interfaces (TCP / IP and serial ports) are adopted to establish a communication link between an embedded end server and an upper computer client, and a man-machine interaction function in a plurality of modes is realized, so that an operator can carry out multi-source data fusion through different communication modes, and the safety of the highway bridge safety early warning system and method is improved. According to the multi-interface man-machine interaction system, interaction with the system is conveniently carried out according to actual requirements and scenes, serial port communication can exert the advantages of the system, stability and reliability of interaction are ensured, the flexibility and convenience of man-machine interaction are greatly improved through the arrangement of multiple interfaces, and diversified operation requirements are met.

The ground penetrating radar auxiliary vehicle for the solid potassium salt mine comprises a vehicle body, a limiting notch is formed in the middle of the bottom of the vehicle body, a plurality of air pressure cylinders are symmetrically installed on the inner top wall and the inner bottom wall of the limiting notch, and a fixing rod is jointly inserted between every two air pressure cylinders which are symmetrical up and down in a sealed and sliding mode; and an opening plate is jointly installed between the multiple fixing rods, a radar detector is installed on the opening plate, and each air pressure cylinder is sleeved with an electric contraction spring. The vibration frequency of the radar detector is suppressed by adopting the characteristic that the electric contraction spring is electrified and contracted, the working stability of the radar detector is improved, a foot-controlled pressure steering structure is adopted, a user can conveniently control the advancing direction through feet, conveniently operate and control a computer with two hands and focus on detection data, and the user can move along with a vehicle body and is convenient to use. Therefore, a single user can carry out detection more easily.

The invention provides a joint detection area intrusion detection method, and relates to the technical field of platform safety, and the method comprises the following steps: S1, calibrating an intrusion detection area; s2, generating a radar detector detection range and a first preset distance measurement value; s3, adjusting the extension direction of the laser range finder, and generating a second preset range finding value of the laser range finder in the current extension direction; s4, judging whether the distance measurement value of the radar detector is not less than a first preset distance measurement value and the distance measurement value of the laser distance measurement device is not less than a second preset distance measurement value, and if so, not executing the operation; otherwise, the alarm gives an alarm. The small-range close-range detection of the radar detector and the large-length linear detection of the laser rangefinder are utilized to perform joint detection on the intrusion area between the shielding door and the edge of the platform, once the ranging values of the radar detector and the laser rangefinder are smaller than the preset ranging values, it is indicated that someone is in the intrusion area, personnel evacuation is performed in time, and personnel safety is ensured. The train entering and exiting safety is ensured.

The invention discloses an omnibearing free controllable unmanned aerial vehicle Beidou countering terminal, and relates to the technical field of unmanned aerial vehicle countering. Comprising a fixing mechanism used for fixing the device in various environments, a first adjusting mechanism arranged on the fixing mechanism, a second adjusting mechanism arranged on the first adjusting mechanism, a signal processing carrier arranged on the second adjusting mechanism, and a radar detector and an interference transmitter which are fixedly arranged on the signal processing carrier. The device has the advantages that multi-environment stable installation is achieved through the fixing mechanism, the adaptability is high, the problem of posture deviation caused by an inclined fixing face is solved through the first adjusting mechanism, the height and angle are flexibly adjusted in combination with the second adjusting mechanism, and all the parts cooperate with one another; the radar detector and the interference transmitter are ensured to cover the detection and countering range in all directions, the countering precision and reliability are remarkably improved, and the airspace safety protection requirement in a complex scene is met.

The utility model relates to a subway platform door gap detection device and system.The detection device is connected with a corresponding radar detector, and the radar detector is arranged in a corresponding platform door area and used for scanning a gap between a train and a platform door; the detection devices corresponding to the platform doors are sequentially connected in series through the communication loop and the safety loop and connected with the control cabinet. The detection device comprises a control module and an input and output module which are connected with each other; the control module is used for sending a scanning starting signal to the corresponding radar detector based on the received subway door state signal, and receiving point cloud data generated by scanning of the radar detector; generating result data based on the point cloud data, and sending the result data to a control cabinet; and outputting an on-off control signal based on the result data, the input and output module is used for controlling the safety circuit to be switched on or switched off based on the on-off control signal, and the problems that dead zones exist in platform door gap detection, and missing report and false report are likely to occur are solved.

A radar detector employs parameterized subchannel analysis for discrimination of radar signals. Specifically, the signal processing of the radar detector includes a subchannel processor for evaluating programmable sub-bands of a channel for enhanced pattern identification. The subchannel processor specifically incorporates multiple digital demultiplexing stages, producing N signal subchannels at selectable frequencies. The subchannels are decimated from the original sampling frequency to a selectable lower sample frequency, e.g. using a cascaded integrator-comb filter, and then filtered, e.g. using a finite impulse response filter. The resulting sub channels 0 to N−1 are delivered for Neural Network assessment. Importantly, the subchannel frequencies, decimation rates and IIR filter profiles may be selectively adjusted by the control circuits to emphasize relevant patterns to be extracted by the neural network from a received radar signal.

The present disclosure provides a coal cutting control method, device, electronic device and storage medium, the control method comprising: obtaining reflection data of at least one radar detector in a target area, the reflection data comprising the radar reflection intensity of the target area; calculating stratification information of the target area based on the reflection data, the stratification information comprising contour information of coal seams and rock strata in the target area; locating the coal seams and rock strata in the target area according to the stratification information to obtain coal cutting information of the target area, the coal cutting information comprising the three-dimensional spatial position coordinates of the coal seams and rock strata in the target area; and controlling a coal mining machine to cut coal in the target area according to the coal cutting information.

The utility model discloses a measuring marker post for water conservancy project quality detection, and relates to the technical field of measuring marker posts. The measuring pole for water conservancy project quality detection comprises a vertical rod, a transverse rod and a radar detector arranged at one end of the transverse rod, and a solar panel is arranged on the outer wall of one end of the vertical rod and used for providing energy for operation of the radar detector. According to the device, the isolation cylinder is arranged on the outer wall of the cross rod supporting the radar detector, the radar detector is isolated and protected in the isolation cylinder, water vapor generated in the surrounding environment of a water body cannot make direct contact with the radar detector, the drying machine is placed in the isolation cylinder, and the dryness of the internal environment of the isolation cylinder is further guaranteed; radar waves emitted in the operation process of the radar detector cannot be weakened, and the accuracy of water conservancy project quality detection data and detection results by the radar detector is effectively guaranteed.

The invention discloses a non-linear self-calibration method for a laser radar detector, and the method comprises the following steps: (1) collecting laser radar echo signal data, controlling the pulse energy emitted by a laser to be gradually increased from 0% to 100%, setting a plurality of energy levels, collecting atmosphere echo signals at different distances under each energy level, and obtaining an observation signal matrix; (2) establishing a laser radar atmospheric echo theoretical signal model and defining a nonlinear response model to deduct background noise; (3) performing singular value decomposition on the observation signal matrix, and extracting principal components to construct a rank-one approximation matrix; (4) calibrating a nonlinear response curve; according to the method, laser energy or atmospheric parameters do not need to be calibrated in advance, the intensity gradient is naturally formed based on distance-energy scanning only by depending on the characteristics of echo signals, and a linear region and a saturation region are synchronously calibrated; the measurement precision and stability of the laser radar system are effectively improved.

The present invention discloses a self - calibration method for the non - linearity of a lidar detector, comprising the following steps: (1) Collect lidar echo signal data, control the laser to emit pulse energy to increase step by step from 0% to 100%, set multiple energy levels, and collect atmospheric echo signals at different distances at each energy level to obtain an observation signal matrix; (2) Establish a theoretical signal model of lidar atmospheric echo and define a non - linear response model to deduct background noise; (3) Perform singular value decomposition on the observation signal matrix, extract the principal components to construct a rank - one approximation matrix; (4) Calibrate the non - linear response curve; The present invention does not require prior calibration of laser energy or atmospheric parameters, only depends on the characteristics of the echo signal itself, forms an intensity gradient naturally based on distance - energy scanning, and synchronously calibrates the linear region and the saturation region; effectively improving the measurement accuracy and stability of the lidar system.

This invention relates to a method, apparatus, and terminal device for detecting the type of a target object. The method includes: acquiring frame data from a radar scan; extracting target points from each frame data whose reflection energy difference is greater than a preset energy threshold; acquiring target point information corresponding to each target point; clustering the target points to obtain multiple target families; and determining the type of the target object corresponding to each target family based on the distance information and Doppler velocity information corresponding to each target point in the multiple target families. This method can detect the type of a target object in a relatively short time. Moreover, this application only requires utilizing the most basic functions of radar, including acquiring frame data and extracting reflection energy difference and target point information from the frame data, etc., without the need for a high-cost radar detector; a low-cost radar detector can be used. Thus, it achieves rapid detection of the type of target object at a lower cost.

The invention relates to the technical field of blood pressure measurement, and discloses a non-contact blood pressure measurement method and device based on the radar technology, and the method comprises the steps: carrying out the signal detection operation of a target body part of a to-be-measured user through a radar detector, and obtaining a signal parameter of an echo signal of the to-be-measured user; biological signal information of the user to be measured is determined according to signal parameters of the echo signals; according to the biological signal information, performing blood pressure prediction operation on the to-be-measured user to obtain blood pressure parameters of the to-be-measured user. It can be seen that the echo signal of the to-be-measured user can be obtained through the radar detector, blood pressure prediction is conducted on the to-be-measured user according to the echo signal, and the blood pressure parameters of the to-be-measured user are obtained, so that the blood pressure can be measured in a non-contact mode, and the blood pressure measurement flexibility of a measured person is improved; therefore, the blood pressure measurement efficiency and accuracy of the testee are improved, the measurement discomfort of the testee is reduced, and the equipment use experience of the testee is improved.

1. Name of the design product: Radar detector (bulb-shaped millimeter-wave flat type). 2. Use of the design product: A bulb-shaped millimeter-wave radar detector for installation on a lamp holder. 3. Design key points of the design product: Lies in the shape. 4. The picture or photo that best shows the design key points: 3D view of Design 1. 5. Design 1 is designated as the basic design.