iot datasets

Raspberry Pi 3,win10 Iot, serial port development, copy example, serial port get return always NULL, example but can, code, Internet query results are as follows:https://stackoverflow.com/questions/34160376/ Windows-universal-app-serial-ports-wont-open-serialdevice-fromidasync-always-nSo Microsoft does not mention this need to add something to the app manifest for serial communication Nor is there a tic K box in the app manifest GUI for serial communi

It can be used on Raspberry Pi as the official standard camera, but this camera does not seem to be recognized and used by Windows IoT. However, you can insert any type of camera on the Raspberry Pi's USB port to achieve the Raspberry Pi shooting function.Regarding the camera search and shooting, I encapsulate it into a class, as follows: Public classWebcamhelper { PublicMediaCapture MediaCapture; Private BOOLinitialized =false; /// ///ini

As you know, on Windows IoT Core, if you use hardware such as a USB sound card and a camera with a microphone outdoors, you'll have multiple audio devices available. However, the system does not currently provide a direct UI to set the audio input or output device. After review, we can use the command line to change the default audio device, as follows.In the case of Raspberry Pi, I use a USB sound card, plus the original Raspberry Pi 3.5mm audio inte

IntroductionThe IoT Platform API supports the following functionality for applications: View organization details. Bulk Device Operations (list all, add, remove). Device type operations (list all, create, delete, view details, update). Device Operations (List devices, add, remove, view details, update, view location, view management information). Device Diagnostic operations (clear log, retrieve logs, add log information, delete logs, get

consumption data are made on time, day, month, year, or different area, or different energy classes, or different types of power-consuming equipment. Analysis of total energy consumption, energy consumption per unit area and energy consumption, standard coal conversion, as well as historical trends, the same time after the comparison of energy data, such as the automatic generation of real curve, historical curve, forecast curve, real-time reports, historical reports, daily/monthly statements a

Updates for Ssio The UDP communication method is added on the Ssio, and the source code can be downloaded to GitHub. In the original project, the remote device interacts with the central station's data without using the UDP method. This short-link communication link, not easy to maintain, mainly reflected in: (1) Continuous data interaction capabilities. (2) Maintain and calibrate the field equipment for a long time. (3) ssio to coordinate the operation relationship between the device, IO a

GPS device. Traditional media The tablet represented by iPad is gradually changing our reading habits and resources. Maybe we don't need to publish thick books in school, but instead use e-books and iPad. Now we are surfing the Internet, most of videos and online shopping come from tablets. ...... 2. Other fields: TVFields Smart TVs, apple, and Samsung are working hard. Haier 2013 has all their color TVs pre-installed with Android 4.2 in one step. With the popularization of Android, online T

Android byte array to convert hexadecimal strings (IOT Development Summary) I think of outsourcing development of the Internet of Things some time ago, and often encounter data received through wifi, which should be converted into a hexadecimal string or finally in decimal format. It is developed based on the agreement between the two parties. The data I sent in the past also needs to be specially converted into byte bytes, so that the hardware side w

Note: Determine whether the device is connected to IOT platform !, Note: Device networking Remember to add permissions: 1 package com. lixu. getInternet; 2 3 import android. app. activity; 4 import android. content. context; 5 import android.net. connectivityManager; 6 import android.net. networkInfo; 7 import android. OS. bundle; 8 import android. widget. toast; 9 10 public class MainActivity extends Activity {11 12 @ Override13 protected void onCrea

After experiencing the storms of Iot appliances, I deeply understood the difficulty of switching from technology to management.The first is the angle. Previously, the technology was used for execution, but after management, it was used for financial control and control. As the project manager's "execution", it was followed up, analyze 10 Process Groups every day to find problems;2. Speaking of the top ten Process Groups, my problem occurs in progress

After adding JSON support to IoT Coap, it becomes very interesting, at least we can get the results we want. In the previous article, we introduced some common tools--coap command-line toolset. COAP Client code example Before we start we need to have a client code so that our server can return the correct data and parse var coap = require (' Coap '); var requesturi = ' coap://localhost/'; var url = require (' URL '). Parse (RequestUri + ' id/1/'); Co

Output even record:View Sourceprint?1 2 3 {$vo. Name}4 5 MoD properties are also used to control the line breaks for a certain record, for example:View Sourceprint?1 2 {$vo. Name}3 4 5 When empty, the output prompt:View Sourceprint?1 2 {$vo. id}| {$vo. Name}3 The empty property does not support direct incoming HTML syntax, but can support variable output, for example:View Sourceprint?1 $this->assign (' Empty ', ' 2 $this->assign (' list ', $list);Then use it in the template:View Sourceprint?1 2

If you encounter such a task some time ago, You need to merge two projects into one project, add the form and dataset of Project B to project a, and then open the form of B through Project.The previous progress was very smooth. When adding a dataset, the system prompts "the typed dataset will not be compiled. Please open the data in the Dataset Designer, check that each tableadapter has been set to a valid connection! ", The code for opening the form in B is not mentioned. At this time, if you c

Recently, a very strange MySQL problem occurs. Using different select statements to query all datasets produces different records. Select * gets four records, and select field gets three records.For details, refer to the following query results:[SQL]Mysql> select * from table_myisam;+ ---------- + ------- + ----------- + ------ +| Datetime | uid | content | type |+ ---------- + ------- + ----------- + ------ +| 1 | uid_1 | content_1 | 1 || 2 | uid_2 |

DataSetRepresents the cache of data in memory.PropertyTables gets the collection of tables contained in the DataSet.Ds. tables["SJXX"]DataTableRepresents a table of in-memory data.Public propertiesColumns gets the collection of columns that belong to the table.The dataset gets the dataset to which this table belongs.DefaultView gets a custom view of a table that might include a filtered view or cursor position.PrimaryKey Gets or sets an array of columns that act as the primary key for the data t

feature of this data set is the migration of recognition to ubiquitous objects, and it is applied to multiple classifications (the sister dataset Cifar-100 reaches 100 classes, and the ILSVRC game is 1000 classes). Compared with the mature face recognition, pervasive object recognition is a huge challenge, and the data contains a large number of features, noises, and different proportions of the object of recognition, and the classification is huge.3, cifar100The dataset contains 100 small clas

In ASP., a dataset can contain more than one data table, and this instance is implemented by merging two data tables into a single dataset that contains all the tables in the original two datasets.Key Technologies:the Merge method of a dataset allows you to merge the contents of another dataset, table collection, or row array into the current data set. The table's primary key, table name, constraints, and so on, all affect the effect of the merged dataset. The merge method is primarily used to m

Kmeans: Overall, speed (single thread): Yael_kmeans > Litekmeans ~ Vl_kmeans1.Vl_kemans (win10 + matlab + vs13 compile problem, but Win7 + matlab13 +vs12 can)2.Litekmeans (direct use, single form faster)Http://www.cad.zju.edu.cn/home/dengcai/Data/code/litekmeans.m3.Yael_kmeans (multithreading) Compile time select Useopenmp=yes, matlab make file to add-fopenmp, otherwise cannot multithreading (will appear ignoring #pragma omp parallel). The NT value cannot be adjusted Yael_kmeans plus NT settings

(0.826) of the last use of naive Bayesian training. Now we start to make predictions for the test data, using the numTree=29,maxDepth=30 following parameters:val predictions = randomForestModel.predict(features).map { p => p.toInt }The results of the training to upload to the kaggle, the accuracy rate is 0.95929 , after my four parameter adjustment, the highest accuracy rate is 0.96586 , set the parameters are: numTree=55,maxDepth=30 , when I change the parameters numTree=70,maxDepth=30 , the a

C # objects, strings, dataTable, DataReader, datasets, object collections are converted to JSON string methods. public class Convertjson {#region Private method///