In order to cope with the strict requirement of high accuracy, rapid response and strong reliability, a realistic system was proposed, which including: (a) opposite-type infrared photoelectric cells for counting the seeds; (b) a decimeter GPS receiver to acquire planter position and operation speed; (c) a vehicle monitoring terminal based on ARM Cotex-m4 core chip for acquiring and processing the data of the whole system; (d) a touchscreen monitor to show the planter performance for the operator; (e) a buzzer alarm device to warn the operator when skip and double seeds happened. As shown in Figure 1, the opposite-type infrared photoelectric sensors mounted on lower part of the 6-port seed tube; the GPS module installed on top of tractor cabin and buzzer based alarm device fixed in the cabin; the touchscreen monitor connected to the vehicle monitoring terminal via CAN bus.
Operating Description The shaft encoder is an 8 bit device, utilizing gray code parallel outputs. Gray to binary conversion takes place before further signal processing. Data corresponding to shaft position is latched, and fed to a high quality digital to analog converter, with tim- ing synchronized to encoder LED exci- tation. A precision, low drift voltage reference is utilized for the D/A con- vertor DC source, as it is for the scaling and live zero circuitry which follows. Voltage to current conversion develops the true current sink output characteristic provided by the trans- mitter. Current sampling and feed- back assure that a current which is truly representative of shaft position is generated.
The position/force control has been receiving considerable attention from the researchers. Impedance control strategy can be used to indirectly regulate the force using a single controller through establishing the dynamic relation between the force and position or velocity. However, the environmental conditions of wire clamps for thermosonic wire bonding are not always certain, which makes it difficult to accurately control the force using the indirectly control approach [12, 13] . Through hybrid position/force control scheme, the grasping and releasing operations can be implemented by controlling the position of the clamp jaws and monitoring the contact forces at the same time, but the control performance largely depends on the division of force and position subspaces, which requires to accurately identify the environmental constrains  . To overcome this issue, intelligent control methodologies, such as fuzzy and neural network control, have been proposed to control forces [15, 16]
The national advanced technology photovoltaic demonstration base in Datong mining subsidence area is a construction project aiming to improve energy structure of Shanxi Province, improve ecological environment quality of Datong subsidence area, promote technological progress and industrial development of photovoltaic power generation, and promote economic structure transformation of Datong City. It was built in 2015. The planned installation capacity is 1000 MWp, which is divided into 13 individual projects, including 7 “Top Runner” program projects, with the scale of a single individual project being 100,000 kW; 6 “Top Runner Program + New Technology and New Model Demonstration” projects, with the scale of a single project being 50,000 kW. Taking Datong Top Runner Base as an example, this paper analyzes technical design basis, monitor- ing elements, system composition and effect evaluation of high-precision solar resource monitoring station, which provides technical support for construction of China’s photovoltaic power plant area and analysis of photovoltaic power generation data.
In this section, we present the empirical results on the relevance of the precision of macroeconomic indicators on the impact of macro news on EUR/USD volatility. As discussed in the Introduction, we consider three di erent ways of de ning the accuracy of news. In subsection 3:1, we concentrate on two ex ante measures. First, conditional precision is determined in terms of the extent of the previous month's revision which can be considered a signal that investors use to assess the accuracy of the current announcement. Second, we compare the volatility e ects of news announcements of indicators that are usually precise and imprecise. We call this the unconditional measure of precision. Moreover, we examine whether the volatility e ects of the typically precise and imprecise indicators depend on the accuracy of the previous month's announcement. In subsection 3:2, we present the results based on an ex post measure of accuracy. All the regression models considered below are linear, and they are estimated by ordinary least squares (OLS). Following Andersen and Bollerslev (1998), the autocorrelation in the errors is accounted for by Newey- West heteroskedasticity and autocorrelation consistent covariance matrix estimator with 288 lags.
Based on Figure 5, the experiment was carried out on the body of the rotary table, which was controlled using Teensy 3.2 via the BLDC motor type AXH5100KC-5. The BLDC motor itself was operated using the AXH5D100K Motor Driver. The experiment was done by looking at how fast the response from a DC motor to reach a predetermined position. In this research, the input references used were 45 °, 90 °, 135 °, 180 °, 225 °, 270 °, 315 °, and 360°.
Roughly, this project developed in order to overcome problem regarding unknown specific current position of UTeM bus location. Unknown current position of UTeM bus location give quite huge problem especially to UTeM management in order to ensure their bus following the schedule provided. Basically, what is going to do is to develop a kind of system that contain communication path between UTeM bus and university management to monitor current location of the bus. The thing that should be done to make this project is searching a lot of information regarding monitoring system such as Global Positioning System, (GPS), and Global System for Mobile Communication, GSM module and Arduino since this project used Arduino as microcontroller. The information collected will be used for the next activity which is calculating, measuring and simulating.
It turns out that the eventual figure of over 90% precision is not due to ‘easier’ relation types (such as the dependency between a determiner and a noun) being returned and more difficult ones (for example clausal complements) being ignored. The majority of relation types are produced with fre- quency consistent with the overall 45% recall fig- ure. Exceptions are arg mod (encoding the English passive ‘by-phrase’) and iobj (indirect object), for which no GRs at all are produced. The reason for this is that both types of relation originate from an occurrence of a prepositional phrase in contexts where it could be either a modifier or a complement of a predicate. This pervasive ambiguity means that there will always be disagreement between analyses over the relation type (but not necessarily over the identity of the head and dependent themselves). 3.2 Parse Unpacking
We introduce 3W, a system that identifies mentions within Wikipedia and links each to its referent concept. We show how a Wikipedia-specific Semantic Relatedness measure that leverages the link structure of Wikipedia (Milne and Witten, 2008b) allows 3W to be radically more precise at high levels of yield when compared to baseline Wikifiers that target general text. Our experiment shows that 3W can add on average seven new links per article at precision of 0.98, adding approximately 28 million new links to 4 million articles across English Wikipedia. 2
The improved performance with the inclusion of the ADC is marked. This is especially evident in the Y- component (upper panel of Figure 5), since it is the direction where the atmospheric dispersion most affects the PSF shape in our simulations because of our chosen field orientation. The difference in the performances in the X-direction is less conspicuous, but clearly improving for fainter magnitudes and shorter exposure times. Of course for real observations without the ADC, such a distortion usually has a significant component in both the directions depending on the orientation, thus affecting strongly the achievable astrometric accuracy in both axes. When combining in quadrature the improvement in both components, our tests reveal that the minimum improvement (obtained with the brightest stars in the longest exposure) amounts to ∼ 370 µas, while the maximum value (for the faintest stars in the shortest exposure) amounts to ∼ 2000 µas, in fair agreement with the prediction of. 7 Therefore, under the hypothesis that the PSFs used are realistically reproducing the reliable effect of the ADC, our study strongly supports the need of a high-functioning ADC in MICADO to achieve accurate astrometry.
Indeed, our customers are continuing to benefit directly from significant performance improvements and unique selling points thanks to our “ready-to-fit” products, since these follow the efficient basic concept: unpack, screw mount, use. In order to optimise the entire machine tool system, however, it is also becoming ever more important to integrate important functions such as measurement, sealing, lubrication, braking etc. in the components themselves. This intellectual approach is fulfilled comprehensively by the new concept “added competence” in the Business Unit Production Machinery since it attaches central importance to systems solution thinking for the bearing, bearing position and entire system. This means that you can now access a product range that gives optimum coverage for all your applications in the machine tool. In addition, there is increasingly frequent usage of direct drives and mechatronic solutions in machine tools. We have therefore incorporated IDAM – INA Drives & Mechatronics – as a further strong partner in our provider network. In this way, we can now supply you from a single source with not only bearing elements but also components precisely matched to the drive system.
In this paper discusses about the design and fabrication of Bluetooth controlling robot with positionmonitoring system. The main purpose of the paper is to develop a remote user interface to control a robot by wireless technology. This paper will explain the reader, how secure Bluetooth communications between a robot and computer through Bluetooth module (HC-06), then show the present robot position using X, Y & Z co-ordinates through processing software.
The use of GPS for guidance of mobile robots has been reported as achieved in a number of useful proximate scenarios such as stevadoring, formation movement or search and agricultural positioning. Standard DGPS can be used to get an accuracy of under one metre sometimes leaving fine motor adjustments by humans to complete a task. Pay a lot more, and the precision improves but the cost is high in any commercial terms for the mass market. We report highprecision GPS-guided movement based on the use of readily available low-cost receivers. Accuracies of better than 5 cms maintained over minutes have been demonstrated and are being improved upon. The guidance algorithms were adjusted to allow for the retention of orientation when approaching close to a destination. The introduction of the Galileo 1
Figures 14 and 15 include the two most relevant PV defects on the installation: snail tracks and hot spots and burn marks. The snail tracks distribution in the power field seems not to be homogeneous but we cannot also infer a clear high density zone. PV modules affected by this PV fault seem to have from 1 to 3 defects. However, 15 defects of this type can be found on single modules. No significant correlations with electrical measurements are detected in this case. Figure 12 show the hot spots and burn marks found on the PV modules. Fortunately, very few of these defects have been found in the installation. In this case, its distribution is clearly concentrated in the lowest part. Moreover, it results remarkable that the module with the highest number of hot spots and burn marks is one of the modules with higher number of snail tracks. Its STC peak power output is also lower than the average.
The second case study is a self-consumption PV power plant operated by the Spanish company Himalaya Sol. It is a fixed 9 kWp plant installed in the rooftop of a single family dwelling. It started the operation in February 2017 and consists of 36 GFM 220-250 monocrystalline silicon modules manufactured by the company Wuxi Guofei Green Energy Source Co. Ltd. (see Table 3). The PV modules are installed in a fixed structure with a slope of 32 degrees and oriented 6 degrees East azimuth angle. The modules have a unit peak power of 250 W and its power output is optimized by a P300 optimizer from Solar Edge, as the installation is affected by a high number of shadows (due to the architectural configuration).
Rather than developing a dedicated methodology that exclusively relies on the data provided by or- ganizers, we chose to extend and refine our prior work in hedge detection and used the training data only in a limited manner: to tune our sys- tem in a principled way. With little tuning, we achieved the highest precision in Task 1B. We were able to capitalize on the overlap between hedging cues and weasel words for Task 1W and achieved competitive results. Adapting our pre- vious work in scope resolution to Task 2, how- ever, was less straightforward, due to the incom- patible definitions of scope. Nevertheless, by re- fining the prior dependency-based heuristics with left and right expansion strategies and utilizing a simple mechanism for parse tree information, we were able to accommodate the new definition of scope to a large extent. With these results, we con- clude that our methodology is portable and easily extensible.
Additionally, Figs. 7 and 9 show the different PDOP values for the same X-Y planes and heights (z=2m, 4m, 6m). Note that the PDOP values are high in general terms (above 100). The contour map is a representation of the PDOP in planes at different height. The values of the PDOPs have been calculated for every point in the grid (according to the cloud of points with the estimated positions after the simulations). Each color represent a particular value of PDOP; and the greater the PDOP the greater the positioning error in this point (even in the case that all the distances has been measured always with a typical deviation of 1 cm). With this representation one can have an idea about the error we can wait in each region of the environment in a real situation with a particular ULPS arrangement.