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robotics/854_bfbc7fe81559e716_72.txt
This requires new behaviors that we all must embrace. Number one is that before we leave practice, we have to put away everything we are working on. We have project boxes for anything currently under construction. It's your job to know when you have to leave and to allocate time for cleanup of everything you are workin...
robotics/5cb83914_9066.txt
Hey I'm Dejan, a maker, a techie and a mechatronics engineer. I love making electronics and robotics projects for you to learn and make something cool on your own. Don't forget to check my 690K subs YouTube Channel .
robotics/a54819ab_6488.txt
Seisa et al. proposed an edge-based architecture for offloading Model Predictive Control (MPC) tasks from UAVs to edge servers, significantly reducing on-board computational load and latency. Their work demonstrates the feasibility of integrating edge computing into real-time autonomous navigation, offering a viable s...
robotics/14840_a9c6cd2aa71a4d3d_30.txt
Through extensive simulations based on 3GPP-compliant channel models and real-world evaluation using the KITTI dataset, we demonstrate that our system achieves high positioning accuracy and continuity across varied scenarios. Experimental results confirm the system’s effectiveness in maintaining localization with absol...
robotics/6fed2e2a_7491.txt
2.5. Continuous-Time Plant EquationsA block diagram of the strapdown navigation system model including the process and observation noise signals used in defining the navigation filter is shown in Figure 2. The process noises, w a and w b , represent the noise in the accelerometer data and the noise driving the bias mod...
robotics/e94dfc53_9174.txt
The code ran at 1 kHz speed. We enforced safety in our design through various ways. Since a quadcopter is a relatively dangerous flying electronic object, there are many usability, and safety standards we must account for. For safety, we had all the electronics on the table aside from the IMU, and limited the quadcopte...
robotics/1211_fe650460e2acb790_189.txt
A robot platform includes perceptors, locomotors, and a system controller. The system controller executes instructions for producing an occupancy grid map of an environment around the robot, scanning the environment to generate a current obstacle map relative to a current robot position, and converting the current obst...
robotics/a61d1e7e_8330.txt
exp ( A ) exp ( θ ( u L ) ) exp ( 0 z θ y θ z θ 0 x θ y θ x θ 0 ) I sin θ u L ( 1 cos θ ) ( u L ) 2 , displaystyle begin aligned exp(A) amp; exp bigl ( theta ( mathbf u cdot mathbf L ) bigr ) amp; exp left( begin bmatrix 0 amp;-z theta amp;y theta z theta ...
robotics/854_aeed479c586722c5_381.txt
Two hours indeed. Actually, it took me four and a half hours to overhaul the left main strut, repack the wheel bearings, and put everything back together again. Some of that time was spent cleaning years' worth of grime from the gear, however, and some making new tools and re-discovering which old ones to use, and some...
robotics/1266_e26caa74eb27f4da_127.txt
Large-scale datasets have been pivotal to the advancements of deep learning models in recent years, but training on such large datasets inevitably incurs substantial storage and computational overhead. Meanwhile, real-world datasets often contain redundant and noisy data, imposing a negative impact on training efficien...
robotics/9456_109c1bd45405219f_36.txt
| Name | Description | Min > Max (Incr.) | Default | Units | | --- | --- | --- | --- | --- | | **RC10\_DZ** (FLOAT) | RC channel 10 dead zone **Comment:** The +- range of this value around the trim value will be considered as zero. | 0.0 > 100.0 | 0.0 | | | **RC10\_MAX** (FLOAT) | RC channel 10 maximum **Comment:** Ma...
robotics/9456_109c1bd45405219f_26.txt
| Name | Description | Min > Max (Incr.) | Default | Units | | --- | --- | --- | --- | --- | | **LPE\_ACC\_XY** (FLOAT) | Accelerometer xy noise density **Comment:** Data sheet noise density = 150ug/sqrt(Hz) = 0.0015 m/s^2/sqrt(Hz) Larger than data sheet to account for tilt error. | 0.00001 > 2 | 0.012 | m/s^2/sqrt(Hz)...
robotics/599722c5_7248.txt
The method that follows has been called Global Kinematic Planner and exploits a weighted pseudoinverse in order to generate the initial conditions for the multi-start search. The use of the weighted pseudoinverse is a widespread technique in robotics (for local optimal redundancy resolution in differential kinematics),...
robotics/1b3de6f5_8353.txt
0 R T 0 0 R T ( R I ) u ( R I ) u ( R T R R T R I ) u ( I R T R I ) u ( R R T ) u displaystyle begin aligned 0 R mathsf T 0 0 R mathsf T left(R-I right) mathbf u left(R-I right) mathbf u left(R mathsf T R-R mathsf T R-I right) mathbf u left(I-R...
robotics/1266_e26caa74eb27f4da_97.txt
A promising approach for improving reasoning in large language models is to use process reward models (PRMs). PRMs provide feedback at each step of a multi-step reasoning trace, improving credit assignment over outcome reward models (ORMs) that only provide feedback at the final step. However, collecting dense, per-ste...
robotics/1211_fe650460e2acb790_340.txt
A multiple-legged robot is traditionally controlled by using its dynamic model. But the dynamic-model-based approach fails to acquire satisfactory performances when the robot faces rough terrains and unknown environments. Referring animals' neural control mechanisms, a control model is built for a quadruped robot walki...
robotics/36d8d4af_8665.txt
Complexity of conversion escalates with Euler angles (used here in the broad sense). The first difficulty is to establish which of the twenty-four variations of Cartesian axis order we will use. Suppose the three angles are θ1, θ2, θ3; physics and chemistry may interpret these as Q ( θ 1 , θ 2 , θ 3 ) Q z ( θ 1 ) Q y...
robotics/854_bfbc7fe81559e716_273.txt
* Elbow model Justin worked on the elbow redesign, which we are modeling to combine many intricate parts on our current robot to one, more serviceable and sturdy part on the robot. We finished the model and began its print. See more at (E-136, New Elbow).* Intake prototyping As we are in the process of redesigning our ...
robotics/2b3fe35d_9424.txt
Due to the symmetry of the aerostatic bearing structure, a 1 4 air domain model is established in the simulation process to improve computational efficiency. A hexahedral structured mesh is used for numerical calculations, and the mesh is shown in Figure 4 a. In order to enhance the resolution accuracy of turbulent vor...
robotics/854_bfbc7fe81559e716_118.txt
A placid stillness hung over the dark, cold room. The early sun flashed through the pale window curtains, ineffective against the onslaught of light. Outside, birds started to chirp and sing, starting off the new day. All over the city, teams were waking up, walking to the Classic Center (the Thunderdome of Robotics), ...
robotics/1266_94b562cd204cbb40_16.txt
Once we have defined a concept graph, we can define students who have some inherent mastery of every relevant concept. The student also contains a couple of additional parameters: the amount of time they are willing to spend in each course time-step and a “motivation” parameter, a valued parameter ranging from 0 to 1 w...
robotics/ad779565_8672.txt
As usual, we have special alternatives for the 3 3 case. Each of these methods begins with three independent random scalars uniformly distributed on the unit interval. Arvo (1992) takes advantage of the odd dimension to change a Householder reflection to a rotation by negation, and uses that to aim the axis of a unif...
robotics/384666d8_8428.txt
( R R T ) u u u u u 0 displaystyle left(R-R mathsf T right) mathbf u mathbf u _ times mathbf u mathbf u times mathbf u 0 ,
robotics/51fef7dd_8622.txt
Here I is the identity matrix, and we use det(RT) det(R) 1, as well as ( 1)n 1 since n is odd. Therefore, det(R I) 0, meaning there is a nonzero vector v with (R I)v 0, that is Rv v, a fixed eigenvector. There may also be pairs of fixed eigenvectors in the even-dimensional subspace orthogonal to v, so ...
robotics/21338_ffcd46c10cd05485_322.txt
This paper summarizes part of the research work carried out in the Add Control project, which proposes an extension of the wastewater treatment plant (WWTP) models and modelling architectures used in traditional WWTP simulation tools, addressing, in addition to the classical mass transformations (transport, physico-che...
robotics/eb02cdb0_7348.txt
The GPM optimizes the performance metric using the null space of the Jacobian matrix, without affecting the End-effector motion of the manipulator. Specifically, this method projects the steepest descent direction of the performance metric onto the null space of the Jacobian matrix and selects the optimal solution alon...
robotics/10effe48_0120.txt
Recent years have enlightened many more of the general public of the current state and the future potential of artificial intelligence (AI) in our society. In light of this new frontier of AI, an important area of research is to understand how to interface the use of AI with humans. Examples can be seen in all sorts of...
robotics/14178_d4eee9ddd5e6add2_363.txt
There is a marked similarity between this approach and the potential field approach described in section 6.3.2. Indeed, some mobile robots implement obstacle avoidance by treating the current range readings of the robot as force vectors, simply carrying out vector addition to determine the direction of travel and speed...
robotics/1211_fe650460e2acb790_18.txt
Concentric tube robots are thin, tentacle-like devices that can move along curved paths and can potentially enable new, less invasive surgical procedures. Safe and effective operation of this type of robot requires that the robot’s shaft avoid sensitive anatomical structures (e.g., critical vessels and organs) while ...
robotics/8832f5f1_10269.txt
x k k displaystyle mathbf x _ k mid k is the a-posteriori state estimate of timestep k displaystyle k and x k 1 k displaystyle mathbf x _ k 1 mid k is the a-priori state estimate of timestep k 1 displaystyle k 1 . The same notation applies to the covariance.
robotics/564e11ba_6419.txt
In recent years, Artificial Intelligence technologies, including deep learning and Reinforcement Learning, have been progressively integrated into ROS-based navigation systems, enabling end-to-end perception and decision-making. This shift represents a new driving force in the evolution of intelligent navigation.
robotics/1202_d14a34391eb82ba2_83.txt
In terms of driving power, the Cascade requires a little less juice from all of my sources except the LG V30 (which has its high gain output triggered by the 80 Ohm output of the Elear). Comfort wise, the Elear feel a little lighter and less “present” on the head than the more solidly built and sturdy feeling Cascades....
robotics/5116_df90ab058ea5b3b4_1.txt
* The flaps have both `Flap Scale` set to 1, meaning that they will be fully deflected with the flap-control at 1. They also have a slew rate of 0.5/s, meaning that it will take 2s to fully deflect them (a slew rate on the flaps is generally recommended to reduce the disturbances their movement creates). * The ailerons...
robotics/24e86a32_10271.txt
where S k displaystyle mathbf S _ k is the residual covariance and C k I K k H k displaystyle hat mathbf C _ k mathbf I - mathbf K _ k mathbf H _ k . The smoothed state and covariance can then be found by substitution in the equations
robotics/b3a81ead_9194.txt
Lead screws and ball screws have different tendencies to back drive-lead screws typically have a very low chance of back driving, whereas ball screws are more likely to allow the load to fall. This disparity comes down to efficiency. A lead screw's low efficiency, which is often considered a negative performance factor...
robotics/d3353632_7391.txt
Table 2. D-H Parameters of the CDRM. Joint i α i a i d i θ i 10 l 1 1 0 θ 1 20 l 1 2 0 β 1 30 l 2 1 0 θ 2 40 l 2 2 0 β 2 50 l 2 3 0 β 3 60 l 3 1 0 θ 3 70 l 3 2 0 β 4 80 l 3 3 0 β 5
robotics/217eaa83_8971.txt
The outer loop controls translational movement along the x and y axis. This controller outputs desired roll and pitch angles for the inner controller based on the error in the x and y axis. There are multiple inputs for this outer loop controller. These could be waypoints generated from a Ground Control Station, a path...
robotics/86c0d6c1_8631.txt
where for every direction in the base space, Sn, the fiber over it in the total space, SO(n 1), is a copy of the fiber space, SO(n), namely the rotations that keep that direction fixed.
robotics/67546a35_10870.txt
Let s assign μ0 and σ0 for the prediction distribution and μ1 and σ1 for the measurement distribution. Multiplying these two Gaussians together, and sampling the result gives us a new distribution.
robotics/788d78d7_9383.txt
Traditional contact bearings often create a bottleneck in the transformation of a manufacturing process into a cleanroom compliant one. Contact bearings need lubrication, which can aerosolize, and as their dynamic components wear down and spall, can also become airborne particulates and contaminate your environment.
robotics/1211_fe650460e2acb790_258.txt
Marvelous vision based dynamic behaviors of insects and birds such as perching, landing, and obstacle avoidance have inspired scientists to propose the idea of time-to-contact, which is defined as the time for a moving observer to contact an object or surface if the current velocity is maintained. Since with only a vis...
robotics/854_bfbc7fe81559e716_401.txt
We also started going through the demo mode that was written last year. We have this idea for a great cool demo mode that will be documented once it’s in progress. However, to get there we need a working IMU. We technically had an IMU that worked at the competition, though it was never properly used or calibrated. So, ...
robotics/045f1c07_6348.txt
However, traditional path-planning algorithms, such as DWA, often experience delayed responsiveness and rigid trajectory behaviour when confronted with high-speed dynamic obstacles. To overcome these limitations, researchers have explored the integration of deep learning techniques with conventional planning strategies...
robotics/854_bfbc7fe81559e716_714.txt
Additionally, we have been printing swerve parts to ensure we’re ready for our build plans next week. We discussed the design of the linear slide system. We explored the idea of mounting the slides one behind the other. We also addressed the potential problem of belt slippage during robot lifts, if we decide to use the...
robotics/b68b7098_8409.txt
vteMatrix classesExplicitly constrained entries Alternant Anti-diagonal Anti-Hermitian Anti-symmetric Arrowhead Band Bidiagonal Bisymmetric Block-diagonal Block Block tridiagonal Boolean Cauchy Centrosymmetric Conference Complex Hadamard Copositive Diagonally dominant Diagonal Discrete Fourier Transform Elementary Equi...
robotics/03bab1a6_10456.txt
An alternative to the RTS algorithm is the modified Bryson-Frazier (MBF) fixed interval smoother developed by Bierman. 47 This also uses a backward pass that processes data saved from the Kalman filter forward pass. The equations for the backward pass involve the recursive
robotics/fad18531_7600.txt
Abstract Accurate estimation of accelerometer biases in Inertial Measurement Units (IMUs) is crucial for reliable Unmanned Aerial Vehicle (UAV) navigation, particularly in GPS-denied environments. Uncompensated biases lead to an unbounded accumulation of position error and increased velocity error, resulting in signifi...
robotics/854_aeed479c586722c5_376.txt
I may have a chance to equalize the fluid levels in the struts in the not too distant future, however, because my oleo strut consultant has proposed that I replace the fixed orifices in the struts with ones incorporating valves that would uncover additional orifices during the compression stroke. These would have less...
robotics/d642d12c_0703.txt
In the last decade, SBS/RS and AVS/RS have garnered significant attention from researchers (Ekren et al. 2023). SBS/RS represents a sub-type of AVS/RS in which every tier has its dedicated shuttle, thus implying higher throughput and investment costs compared to the tier-to-tier solution (Lerher et al. 2015; Küçükyaşar...
robotics/14178_d4eee9ddd5e6add2_296.txt
For example, using the specific values in table 5.1, if Dervish is next to an open hallway, the likelihood of mistakenly recognizing it as an open door is 0.10. This means that for any node n that is of type open hallway and for the sensor value z = open door, p  z n  = 0.10 . Together with a specific topological map...
robotics/0205f20e_10495.txt
displaystyle p( mathbf z _ k mid mathbf x _ k ) approx frac p( mathbf x _ k mid mathbf z _ k ) p( mathbf x _ k )
robotics/2422_74e707900ee88d80_4.txt
Based on the properties of the cosine, the right hand side (r.h.s.) of this equation must be in the range $[-1,1]$ for a solution to exist. If it were identically $\pm 1$, then one solution would exist, namely 0 or $\pi$, and otherwise two solutions exist, namely $$q\_2 = \pm \cos^{-1} \left( \frac{\| \mathbf{x}\_D \|^...
robotics/36d8d4af_8030.txt
Complexity of conversion escalates with Euler angles (used here in the broad sense). The first difficulty is to establish which of the twenty-four variations of Cartesian axis order we will use. Suppose the three angles are θ1, θ2, θ3; physics and chemistry may interpret these as Q ( θ 1 , θ 2 , θ 3 ) Q z ( θ 1 ) Q y...
robotics/854_bfbc7fe81559e716_569.txt
To start on the subject of lessons learned, It is obvious we should practice more. Driver practice has always been a weak area for us.(Having said that, for the amount practiced the driver did excellent). One thing the driver should not have had to account for is that possibility to lodge the wobble goal on the robot. ...
robotics/cadfb863_6938.txt
The agent takes an action A t 𝒜 subscript 𝐴 𝑡 𝒜 A _ t in mathcal A italic _A start _POSTSUBSCRIPT italic _t end _POSTSUBSCRIPT caligraphic _A at state S t 𝒮 subscript 𝑆 𝑡 𝒮 S _ t in mathcal S italic _S start _POSTSUBSCRIPT italic _t end _POSTSUBSCRIPT caligraphic _S every timestep t 𝑡 t italic _t...
robotics/1266_e26caa74eb27f4da_169.txt
With the rapid development of AI-generated content, the future internet may be inundated with synthetic data, making the discrimination of authentic and credible multimodal data increasingly challenging. Synthetic data detection has thus garnered widespread attention, and the performance of large multimodal models (LMM...
robotics/641713db_6568.txt
In general, the mechanical advantage of a lever system is determined by the ratio of the length of the lever arms on either side of the fulcrum. A longer lever arm will provide a greater mechanical advantage, allowing a smaller force to be used to achieve the same amount of work. However, the mechanical advantage angle...
robotics/827013ff_8351.txt
Further, the equation may be rewritten R u I u ( R I ) u 0 , displaystyle R mathbf u I mathbf u implies left(R-I right) mathbf u 0, which shows that u lies in the null space of R I.
robotics/8895_80ceca0747858829_107.txt
Electrolysis is the chemical reaction where an electrical current separates the atoms of a molecule and releases them in pure form. The most common form of electrolysis is that of water, where electricity is run through water to separate the oxygen and hydrogen atoms and releases them as pure gasses. This occurs becaus...
robotics/74930b12_7991.txt
R ( θ ) 1 0 tan θ 1 1 sin θ cos θ 0 1 cos θ 0 0 1 cos θ displaystyle begin aligned R( theta ) begin bmatrix 1 0 tan theta 1 end bmatrix begin bmatrix 1 - sin theta cos theta 0 1 end bmatrix begin bmatrix cos theta 0 0 frac 1 cos theta end bmatrix end alig...
robotics/854_bfbc7fe81559e716_167.txt
* Further brainstorming and discussion Taking some inspiration from 30 hr robot reveal videos, we have continued the brainstorming for this year's robot. Our main subjects of discussion are our intake and lift, and some ideas that were thrown around were a conveyor belt-like intake and a lift that utilizes a linear sli...
robotics/1b3de6f5_7948.txt
0 R T 0 0 R T ( R I ) u ( R I ) u ( R T R R T R I ) u ( I R T R I ) u ( R R T ) u displaystyle begin aligned 0 R mathsf T 0 0 R mathsf T left(R-I right) mathbf u left(R-I right) mathbf u left(R mathsf T R-R mathsf T R-I right) mathbf u left(I-R...
robotics/14178_d4eee9ddd5e6add2_128.txt
feedback loops. In higher-end cameras, the user can modify the values of these parameters via software. The iris position and shutter speed regulate the amount of light being measured by the camera. The iris is simply a mechanical aperture that constricts incoming light, just as in standard 35 mm cameras. Shutter speed...
robotics/44796bf0_0691.txt
A far more effective way to calculate Forward Kinematics, once you've got your DH parameters, is to use an existing library. There are loads of kinematic software libraries and many of them do far more than just calculate Forward Kinematics. Most of them include Inverse Kinematic solvers, dynamics, visualization, motio...
robotics/268f73d5_0172.txt
This paper presents a novel inverse kinematics global method for a redundant robot manipulator performing a tracking maneuver. The proposed method, based on the choice of appropriate initial joint trajectories that satisfy the kinematic constraints to be used as inputs for a multi-start optimization algorithm, allows ...
robotics/1202_d14a34391eb82ba2_93.txt
Looking at isolation, the Aeon d are the more isloating of the two headphones, being able to block out external noise more effectively than the Cascade. This doesn’t overly affect the Cascade in portable situations, as the increased bass output in comparison to the Aeon Closed helps mask the background noise more effec...
robotics/854_66c38b16a0fafc7d_3.txt
A very few screws in cameras have a left-hand thread. I've seen exactly one (1) case of this - in the Copal Square S shutter (used in the Nikkormat FT/FTN among others) - which secures the "Slow Speed Lever" or "Retard Drive Cam" depending on which manual is being referenced. But be on the lookout - if the screw seems ...
robotics/10f52430_6554.txt
2. Can I use ROS 2 Control with Arduino-based custom robots? Yes, ROS 2 Control works excellently with Arduino-based systems. You'll implement a hardware interface that communicates with your Arduino via serial communication, USB, or other protocols. The Arduino handles low-level motor control and sensor reading while ...
robotics/854_bfbc7fe81559e716_675.txt
We got a 26 point auton because we scored the purple pixel properly, but the robot dropped the yellow pixel because of the “spin sequence”, which ensures that we are pointing directly at the backdrop but takes too much time. We also got parking. In the Tele-Op portion, we hit the stage door but it didn’t mess us up too...
robotics/18592_8c6ec48c64501741_53.txt
| | | | | --- | --- | --- | | | | | | **VI121-03** | | | | **Adaptive Control Design** | Regular Session | | Chair: Monnigmann, Martin | Ruhr-Universität Bochum | | Co-Chair: Nielsen, Christopher | University of Waterloo | | Paper VI121-03.1 | | | PDF · Video · Adaptive Neural Network Control for Nonlinear Ou...
robotics/1211_fe650460e2acb790_131.txt
A mobile robotic system is described that conducts radiological surveys to map alpha, beta, and gamma radiation on surfaces in relatively level open areas or areas containing obstacles such as stored containers or hallways, equipment, walls and support columns. The invention incorporates improved radiation monitoring m...
robotics/732e3f15_10097.txt
- Limited Mold Life : Silicone molds typically degrade after 20 to 50 parts, making them unsuitable for high-volume production. - Part Size and Complexity : There are limitations on the size and complexity of parts that can be cast. - Material Properties : The mechanical properties of cast parts may not match those of ...
robotics/9965_970fa4d1a578a54e_1.txt
- Freeing and Opening Gardeners and Farmers & Others with an Interest in the Animal & Plant Kingdoms - Freeing and Opening Cooking - House Plants - Vegetation “Dis-ease” & Pest Management - Pollination & Pollinators - Threats to Seeds - Seed Germination - Seed Exchange & Preservation (Seed saving, Seed sharing/swapping...
robotics/1266_e26caa74eb27f4da_151.txt
Large language models (LLMs) are increasingly employed for complex tasks that process multiple generation calls in a tree structure with d prefixes of tokens, including few-shot prompting, multi-step reasoning, speculative decoding, etc. However, existing inference systems for tree-based applications are inefficient du...
robotics/ad779565_8404.txt
As usual, we have special alternatives for the 3 3 case. Each of these methods begins with three independent random scalars uniformly distributed on the unit interval. Arvo (1992) takes advantage of the odd dimension to change a Householder reflection to a rotation by negation, and uses that to aim the axis of a unif...
robotics/efb28a55_11177.txt
The link which represents my vehicle robot camera base is base _link. I am confused on how I can publish a transform between that link and the camera_color_optical_frame because I only have the tf between the map link (i.e. this is the Fixed Frame link) and the base _link link. My TF tree is unconnected as shown ...
robotics/4d0d51f9_0457.txt
Coming soon. Photos of an intact D3000 may be viewed at: Nikon D3000 DSLR Dissection Web Album. (This opens in a single new tab or window depending on how your Browser is set up.) But that's so boring.
robotics/854_66c38b16a0fafc7d_10.txt
* Many of the photos were taken with an ancient Nikon D70 in keeping with the historical value of some of the material here. This is especially fitting for the D70 dissection. ;-) In that case, a Nikon AF-S DX Nikkor 18-55mm f/3.5-5.6G zoom lens was generally used for the camera dissections. For the lens dissections, t...
robotics/1211_fe650460e2acb790_368.txt
This paper presents a method that allows two wheeled, mobile robots to navigate unknown environments while cooperatively carrying an object. In the navigation method, a leader robot and a follower robot cooperatively perform either obstacle boundary following (OBF) or target seeking (TS) to reach a destination. The two...
robotics/81ca8c10_9967.txt
1. D that is too low 2. P that is too high 3. or even P that is too low (a low P gain can cause slow, sloppy oscillations because it's not providing enough authority to get to the intended end-state).
robotics/854_bfbc7fe81559e716_119.txt
This day marked the first official day of the 2018 South Super Regionals, the last one ever being held. With FIRST moving to the Qualifier-Reigional-Worlds system, we wanted to make a good impression and show off, and thats exactly what we did. First, we overdesigned a robot that impressed judges and looked nice to oth...
robotics/1e69879d_9147.txt
For our final project, we created a simplified Pico Quadcopter that can be controlled through a serial interface and allows a user to direct the quadcopter to fly up and down a metal tube.
robotics/8895_80ceca0747858829_88.txt
This project explores the implementation of different cryopreservatives and their effects on invertebrate species such as the Brine Shrimp (Artemia spp.). Cryopreservation success depends mainly on using cryoprotectants, which prevent ice crystals from forming under fragile tissues. Most commonly found as glucose or ur...
robotics/854_bfbc7fe81559e716_268.txt
Once again we didn't expect a fourth win, but it happened. Before this match we wanted to test our autonomous with the Lamar Vikings to if the robots would collide during autonomous, but due to mechanical issues on their side this was delayed and we had to queue without doing so. Indeed, our robots collided in the dep...
robotics/854_aeed479c586722c5_466.txt
A reader commented, with regard to my previous posting, that GPS is unlikely to be accurate to one centimeter. This is true. When I said that the Appareo stores lat-long data with a precision of one centimeter, I intended to distinguish between *precision*, which is simply the number of decimal places presented, and *a...
robotics/7129c919_6891.txt
We showed that the minimum-time approach not only simplifies task specification but can also surprisingly lead to better policies, even when assessed using metrics designed for the guiding reward approach, as demonstrated through empirical evidence in simulation and real robots.
robotics/1211_fe650460e2acb790_353.txt
Future space robotics tasks require manipulators of significant dexterity, achievable through kinematic redundancy and modular reconfigurability, but with a corresponding complexity of motion planning. Existing research aims for full autonomy and completeness, at the expense of efficiency, generality or even user frien...
robotics/5116_df90ab058ea5b3b4_0.txt
* `Control Surfaces`: The number of control surfaces (set this first!) * `Type`: The type of each control surface: `LeftAileron`, `RightAileron`, `Elevator`, `Rudder`, `Left Elevon`, `Right Elevon`, `Left V-Tail`, `Right V-Tail`, `Left Flap`, `Right Flap`, `Airbrakes`, `Custom`. * `Roll Torque`: Effectiveness of actuat...
robotics/854_bfbc7fe81559e716_100.txt
Earlier this week, we practiced our presentation with our new SEM principal, and did a pretty decent run. We still had issues, i.e. running overtime & switching off between parts, but it still impressed our principal. However, we wanted to do better. We had a brainstorming sesssion and talked with past judges, and foun...
robotics/a3c06f3a_8088.txt
These matrices produce the desired effect only if they are used to premultiply column vectors , and (since in general matrix multiplication is not commutative ) only if they are applied in the specified order (see Ambiguities for more details). The order of rotation operations is from right to left; the matrix adjacent...
robotics/14178_d4eee9ddd5e6add2_164.txt
tion we provide only the solution to the two-frame structure from motion problem. For an in-depth study of structure from motion, we refer the reader to [21, 22, 29, 36, 53]. Observe that in structure-from-motion, the images do not need to be precalibrated. This allows SfM to work in challenging situations, where, for ...
robotics/1266_e26caa74eb27f4da_239.txt
We propose a new task and model for dense video object captioning -- detecting, tracking and captioning trajectories of objects in a video. This task unifies spatial and temporal localization in video, whilst also requiring fine-grained visual understanding that is best described by natural language. We propose a unifi...
robotics/fcf6144d_8497.txt
!-- image -- 7. For a detailed derivation, see Derivative of the exponential map . Issues of convergence of this series to the right element of the Lie algebra are here swept under the carpet. Convergence is guaranteed when X Y lt; log 2 and Z lt; log 2 . If these conditions are not fulfilled, the se...
robotics/1202_d14a34391eb82ba2_21.txt
Up top, the Cascade is revealing, resolving and terrifically well-extended. Lower-treble has slight emphasis resulting in a more aggressive presentation of foreground detailing and nicely crisp, if thin instrumentation. Using the included filters can have quite a profound impact here, attenuating peaks to produce a mor...
robotics/21338_ffcd46c10cd05485_385.txt
This paper investigates the dynamics and control of a quadcopter using the Model Predictive Control (MPC) approach. The dynamic model is of high fidelity and nonlinear, with six degrees of freedom that include disturbances and model uncertainties. The control approach is developed based on MPC to track different refere...
robotics/854_bfbc7fe81559e716_314.txt
In an earlier post, we went over the plans for a new mobile learning lab. To clarify, the Mobile Tech xPansion program is owned by Big Thought, a non profit organization dedicated to education, but its outreach events are executed by Team 6832 Iron Reign. During these events, our team travels to low-income areas around...
robotics/261_c9f89eb74b78bf36_5.txt
Although the L6234 application notes suggest that the PWM for controlling motor speed be applied to the IN pins, I decided to do it on the EN pins because, at the time, I thought it would be "weird" to have the upper and lower transistors of a phase being turned on alternately. In fact, there appears to be nothing wron...
robotics/21338_ffcd46c10cd05485_90.txt
Early studies that categorized odontocete pulsed sounds had few means of discriminating signals used for biosonar-based foraging from those used for communication. This capability to identify the function of sounds is important for understanding and interpreting behavior; it is also essential for monitoring and mitigat...
robotics/18592_8c6ec48c64501741_108.txt
| | | | | --- | --- | --- | | | | | | **VI125-05** | | | | **Robust Control Applications** | Regular Session | | Chair: Smith, Roy S. | Swiss Federal Institute of Technology (ETH) | | Co-Chair: Puig, Vicenç | Universitat Politècnica De Catalunya (UPC) | | Paper VI125-05.1 | | | PDF · Video · Robust Decentrali...
robotics/854_bfbc7fe81559e716_529.txt
Instead of using a grip wheel to launch rings we went with the approach to make a custom flywheel. The key concept of a flywheel is to maximize rotational inertia. This is done by putting as much mass towards the edge of the wheel as possible. To do this, a ring of ninjaflex was designed, from there, 5mm flaps were add...