WO2020122700A1 - Remote lab management - Google Patents

Abstract

The invention relates to a remote lab system for the learning of electrical, electronic and control circuits, by means of which students can perform basic experiments with both direct current and alternating current, without having to be physically present in the laboratory to carry them out, owing to provision of a server, together with specially designed equipment, the use of the NI ELVIS system and the Internet, said elements allowing experiments to be carried out with the workstation. It is also worth mentioning that the development of the web platform is an important part for the interaction with the remote lab, essentially with the workstation, since the user can make reservations in it, as well as download the application with which they can access the practical experiments virtually and carry out same, with learning being more didactic and readily available.

Description

REMOTE LABORATORY SYSTEM FOR THE LEARNING OF ELECTRICAL, ELECTRONIC AND CONTROL COMPUTERS AS WELL AS

YOUR METHOD OF IMPLEMENTATION

DESCRIPTION

OBJECT OF THE INVENTION

The main objective of this invention is to describe a system of remote laboratories, which allows the interaction of different physical devices with a user through an interface or web platform, so that users have at their disposal different technological tools from previously predetermined laboratories. but configurable that give them the ability to perform different physical experiments without being physically present at the time of performing them, in this case, it is applied to electrical and electronic circuits, however the laboratory may be applicable to other types of fields or technical applications. and used for different forms of training or technical evaluation, currently being used as a support tool to diversify the installed capacity of laboratories where the volume of students exceeds this capacity, automating and reinforcing the knowledge acquired in that discipline. BACKGROUND

Today throughout the world there is the problem that the installed capacity of institutions and / or organizations, which have technical learning areas

(practice laboratories) which are normally outnumbered by the number of users and / or students, leaving the majority only observing, while only a limited group can make use of these facilities, not to mention that these types of resources are not geographically Within everyone's reach. However, technological evolution has led to an accelerated evolution of various tools which have been applied to many segments of life as part of the Internet of Things and its applications and interactions. As part of this trend and the need to bring and / or facilitate that technical resources are available to everyone, especially the resources to provide quality technical education, since this is often limited by the large number of students and the shortage of available spaces to carry out practices or, failing that, due to the lack of infrastructure of the institutions, which makes it impossible to attend and extend these tools to anyone who requires them, however, despite the fact that a large number of complementary tools have been developed to This, such as online courses, videos and various web tools that promote self-learning, it is always necessary to put it into practice, that is why remote laboratories have been developed for distance learning platforms, including MOOC (Massive courses).

Online Open Courses), be more effective and have a greater impact. These platforms are conceived as the solution to the need to improve the quality of traditional systems, they are systems in which multiple users can take courses from different subjects at the same time, as if it were a face-to-face class, however, the advantage is that everything is at a distance since the activities and tasks are carried out and corrected online by teachers around the world depending on the platform.

Some patents related to the development of this type of systems are the following:

In the invention patent with registration number W001 / 61890A1 and which is called System and method for remotely configuring testing laboratories, it shows a system designed to control and configure machines within A laboratory, this system is aimed at operators so that they learn to use these machines without being present at the time. This patent departs from our invention because it uses different tools to develop it, such as HTTP protocol and XML-based programming language, in addition to using the same password to work independently of the machine to be used, in addition to It does not have a system for registering and controlling users and managing access to the laboratory. This description is the most similar to the proposed development, but it is not interactive, neither in real time nor immediately responsive.

In the invention patent with registration number US4330833 and which is named Method and apparatus for improved digital image processing, it shows a processing method that substantially reduces the number of calculations necessary to discrete convolution, while at the same time providing a good approximation of the results achieved by conventional convolution. This patent departs from our invention because at no time does it mention the use of a platform by a user to interact with the images, in addition to the fact that the approach is completely different from that explained in this patent.

In the invention patent with registration number W02004 / 059421A2 and which is called System and method for remote access to a virtual laboratory environment (System and method for remote-access virtual-lab cnvironment), shows the development of a program computer for an online remote access virtual systems education lab, to which students can connect to the lab server from any client system connected to a common network, using a conventional web browser. This document departs from our invention because it requires a special browser to access the remote laboratory, in this case it is Internet Explorer version 8 onwards to be able to run, which leads us to deduce in this case that said patent refers to the remote access application of a virtual laboratory and not to a real laboratory.

In the patent of invention with registration number US20130285477A1 and which is named Wireless power mechanisms for laboratory devices on a chip (Wireless power mechanisms for lab-on-a-chip devices), shows the development of ways to power and remote control chips, this for microfluidic purposes.

This patent departs from our invention because at no time is an interaction interface used with said process. In addition to that it does not apply to control complete electrical and / or electronic circuits composed of physical components of different types.

In the invention patent with registration number WO2016 / 201193 Al and which is named Self-operating and transportable remote lab system, it shows a system capable of analyzing specimens autonomously, in addition to the fact that said system is movable by the user who uses it.

This patent departs from our invention because the system we propose always remains in one place, it was not designed to be transported. In addition to the fact that in our case the laboratory is operated / controlled by the user, it is not autonomous, the results depend on the user's activity.

BRIEF DESCRIPTION OF THE FIGURES

Figure 1 shows a block diagram of the modules that make up and are used for the operation of the remote laboratory system, as well as the relationship between them.

Figure 2 shows a block diagram of the remote lab module components without the client or remote user and showing the station components.

Figure 3 shows a block diagram of the different remote labs that could be accessed remotely by a user.

Figure 4a shows a printed circuit board (PCB) with prototypes of configurable circuits for use in practicing.

Figures 4b, 4c and 4d show an example of the circuits used for the practices. Figure 5 shows a block diagram of the algorithmic sequence that is followed in order to receive the data from the user, check if they exist in the database and make a reservation. Figure 6 shows a block diagram of the algorithmic sequence that is followed to determine if the user made a reservation to be able to use any of the workstations and to be able to work in practice. DETAILED DESCRIPTION OF THE INVENTION

The characteristic details of the remote laboratory system for learning electrical and electronic circuits are clearly shown in the following description and in the accompanying illustrative drawings, serving as a reference to indicate the same parts that make up said invention.

The invention described in this patent document consists of a system for remote laboratories consisting of three parts: The first consists of a technological structure made up of different devices, their interconnection and the parts that make it up, as well as the way in which they interact between yes; a second part, made up of the required platform and the means for said hardware to interact with each other; and the third part which describes the method of interaction with the user through which they can interact with the different modules as determined by the theme and can perform the predetermined practices for each remote laboratory, in this interaction you can generate from your access, determine an assignment time and schedule to do your practice in a physical station remotely and be able to carry out various practices determined by the instructor.

The first part is basically made up of a computer equipment No. (3) with internet access No. (2) and a set of ports that allow physical interconnection with each of the stations, said equipment has a preloaded application developed with LabVIEW programming tool but also communicates physically and logically with a unit with the ability to take a set of physical signals, convert them into electrical voltages and digitize them so that they can be processed by a computer, said unit (DAQ) No. (4), allows interconnection with a unit NI ELVIS, No. (5), which is a modular engineering educational laboratory device that can emulate different devices such as an oscilloscope, digital multimeter, function generator, variable power source, etc., highlighting that said unit is located in a workstation No. (6) or work module within a physical space. The aforementioned set of devices makes up the remote laboratory which is interconnected by tcp / ip protocols to the internet No. (2) with a central server No. (1) that has an SQL application and a server

WEB installed. Said central server No. (1), may or may not be in the same geographical location as the other computers. Users through eg No. (9) with the internet connect to a specific route through which they access the platform of remote laboratories; it is necessary to mention that these laboratories can vary in their configuration by replacing the unit No. (4) DAQ, by a No. (7) PLC that will control a process No. (8) that can be an elevator, a Cartesian robot, a line of machining, a sorting line, a warehouse, an automation process, etc.

A second part, made up of the platform required for the devices and peripherals to interact with each other, will also provide the user with the interface to manipulate and visualize the components of the remote laboratory and through this to interact with the workstations, said platform is basically made up of three modules:

1) An SQL data management module. -This module will be in charge of managing, creating, validating and authenticating user data in the different databases of data created to generate your access to the remote lab, that one runs on the main server.

2) A Web module or cloud hosting: Through this application you can publish and have access to the internet, that is, it is the main means by which remote users can interconnect to the platform and interact with workstations, said The application is interconnected with the interactive options of the remote laboratory, providing a visual interface to it, it should be noted that it runs on the main server.

3) A module for remote laboratory control: This is determined by an algorithm in LabVIEW with a command in the form of a block that allows both the acquisition of data from the connected circuit and the modification of its parameters, it is executed in the equipment from the remote lab.

These modules or applications interact with each other when they exchange communication between each of them, detailing their parts and operation below:

1) The SQL application contains a database designed for the user to preload their data, so that later a user or entity is created with their access data, which will allow them to access the menu of options and tools previously preloaded. , also highlighting that this user will be validated and authenticated according to the permissions assigned by the administrator, once validated, he will be able to enter and select from a menu of schedules and instances to use the workstations, this will allow him to reserve a specific amount for use one of the workstations, with the option to carry out a series of pre-loaded practices by the administrator or instructor, this application has the reservation time, username and password. 2) The LabVIEW module that will validate the user's credentials, that is, it will compare the data that the user has designated to enter the practice with the data (you reserve that they are in the SQL server database.

The interface of this application is mainly made up of two parts: an external and an internal one.

to. For the external part, a graphical interface is used, which has the following parts:

i. Remote IP Address: Represents the part where the IP address of the person you want to connect to will be displayed.

ii. Remote User: Represents the part where the User Name to be connected will be displayed

iii. TeleLab-Server IP Address: Represents the IP address of the server, the server address is divided into 10 sub-addresses for each workstation that you want to connect to.

iv. DateTfdimePacInt: Represents the part where the date and time when the practice will be open for the user who wants to connect is displayed.

The general operation of this part, together with the server, consists of the following

(Figure 5):

1) The server port is read to which the user asks if it allows him to enter the practice.

2) Once the request is made, the information encapsulated by the protocol

TCP / IP is read to be encapsulated and the data it carries out. During This first part will take out the IP address that is being communicated and display it on the Front Panel in the Remote IP Address part.

3) After obtaining the information within the encapsulation of the TCP / IP protocols, it is necessary to take it to the SQL registry where Microsoft is used

SQL Server Management Studio; at this point the reservation is validated so that it coincides with the request made by the user, all the parameters or information are converted to string type such as the date and time that the user will be working and are placed in the Front Panel in their respective out of the way.

4) Once the data is obtained, it will be validated whether or not the person can enter the server to carry out the corresponding practice. This process consists of using the user information of the external part of the programming shown above and compares it with the information already registered in the server database, both of the user's existence, the keypass, as well as the reservation data. . Once this information is validated, a response will be sent to the user to be able to access the corresponding practice, in case the information provided is not correct, the user will not be able to access the practice.

b. For the internal part, a graphical interface is also used, in which the administrator will observe that all the devices are working correctly and that the data that is shown is as expected. This interface has the following parts:

i. Concatenated String 1 For Date, Time and User: This part shows the concatenation of the data, date, time and username registered from the user's request. ii. User, Password and Station: This part shows the data registered by the user when making his request to be able to use any of the workstations.

iii. Empty Login, Empty Reserve, Super User: In this part, each of these states saved by the work unit is shown by means of LED indicators. Each one is illuminated according to a condition, which are explained below.

• In order for the Empty Login indicator to light, the username and password must exist in the database.

• For the Empty Reserve indicator to light, the reservation. made by the user must exist in the database.

• For the Super User indicator to light, only the administrator must enter their respective account.

iv. Reservations, Teams, Count Reservations and Count Teams: This part shows cluster arrangements for each of these data, which serve as indicators in which the information corresponding to each of the sections is displayed, this is briefly described in continuation.

• In the Reservations part, the user's information is displayed along with the date and time that the reservation was made.

• In the Equipment section, the information of the accounts of the users who carried them out is displayed.

• In the Count Reservations section, the count of reservations made by users is displayed. • In the Count Teams part, the count of the times that users entered the workstations is displayed.

v. Date / Time String: This part shows the concatenation of the date and time recorded from the user's request.

saw. Concatenated String 2 For User and Password: This part shows the concatenation of the username and password registered from the user's request.

Also, this part is made up of two events, which will be used to do the entire validation process; the operation of each is explained below: a. In the first event, the data received from the user request is validated through the TCP protocol, confirming the user and password. This information enters separately as strings, so they must be concatenated so that as a single string you can enter the database in a way that allows you to manage and search for information, this must be done from a route or address where the base of the concatenated string is stored so that the database allows to extract the data in the form of an array of clusters and is deployed in the corresponding clusters.

b. In the second event, the server checks from the same database if it has a reservation on the date and time when the request was made. The program captured the time the request was made and sends it to concatenate it with the username and search for it in the reservation table within the database. The search procedure is very similar to the first event, since it uses the same components, the difference is that it will now search in another table, including in this search the reservation dates made through the platform. If the information exists and is valid, it will be transferred in the form of an Array of Clusters to display it and enable Empty

Reserve to ensure that you can already access. Otherwise, it will send an error message for not having a reservation at the requested time. Similarly, this part has a counter that indicates how many reservations have been made on this workstation.

The operation of these events, in general, is broken down by means of the following steps (Figure 6):

1) The user makes the request to be able to practice, said information is received by a server, which is in charge of searching for said information in the database.

2) If the information provided by the user exists in the database, it is analyzed whether or not you have a reservation made, if you have it, you will be notified that you can access the practice and start working on it, if you do not Having the reservation made, the message will be notified and the user must make it.

3) If the information provided by the user does not exist in the database, an error message will be returned.

Once access and reservation have been validated, the third module consisting of the web server is installed, which is installed on the server and is responsible for allowing the content of the interface platform to be published, through which the user must interact to be able to work with any of the workstations. This is where the third part is involved, which has to do with the method or the steps to follow to access said platform and interact with the physical part, for which the components published on the web platform are described, which have the following sections:

1) General information: This part briefly explains the purpose of the laboratory and how globalization and telecommunications allow laboratory practices to be carried out at any time and place with Internet access.

2) Instructions: This part shows the instructions to follow in order to use both the reservation system and the work interface.

3) Reservations: In this part, the User must enter their User Name and password to access the reservation system and set aside one of the stations at a specific time. To use this section, the following steps are carried out:

to. With the user and password provided by the instructor or laboratory administrator, the reservation system is entered through the default web path where the remote laboratory is hosted.

b. With the username and password, you enter the reservation system and check the availability of schedules at work stations. You can choose any station and any available time. This reservation system consists of the following:

• A screen in which, in addition to displaying the data of the selected username, day, time and station, it also shows a menu with tabs where each one represents the workstation to be used; Within each tab a table is shown with the first column indicating the hours and the first row indicating the days, this in such a way that the user can select the schedule that you are better suited to work with the selected tab workstation.

c. Reservations or modifications to your reservation can be made with a

1 hour in advance, once within that margin it is no longer possible to make reservations or changes.

4) Practices: In this part you will find the links to have access to the different practices which are sequential, as well as a brief description of the direct current and alternating current circuits.

5) Access Interface: This part shows the link to download the executable application, with which the user can start working in the corresponding practice, as well as in the station that has been previously reserved; It is very important to have the LabVIEW Runtime library installed so that this application can be used. This application has the following parts: a. Enter User: In this part, the user must enter their access data to access the practice.

b. Enter Password: In this part, the user must enter Keypass correctly to access the practice.

c. Station buttons 1 to 10: In this part, the user must select the station that I reserve in the corresponding system in order to access the practice.

d. Attempt indicator: In this part, the user is indicated the number of attempts that are left to access the practice in case any of the data mentioned above is incorrectly put, the user You have a maximum of three attempts, to exceed this margin the connection will be closed and you will have to connect again.

and. Seconds indicator: In this part the user is indicated how many seconds he has to access the practice, if the counter reaches zero the connection will be closed and he will have to connect again.

F. Canceled This part shows a button to the user, with which they can decide to cancel their reservation to use the workstation.

Once inside the application, one of the two interfaces can be shown to work in one of the four practices, it must be remembered that specifically for practices 1 and 2 the same circuit is used, the same happens with practices 3 and 4; The interfaces that can be shown depending on the Keypass that is used when making the reservation, are the following:

i. For the interface of practices 1 and 2, the following parts are shown:

1. Voltage controller: This part shows a controller with which you can vary the amount of voltage you want to experiment with. Being Direct Current, only one constant value is used.

2. Circuit diagram: This part shows the electrical diagram with which you are experimenting.

3. Circuit schematic options: This part shows the different circuit configurations that can be experimented with. Being direct current, the available options are

Simple, Serial and Parallel.

4. Vision: This part shows a button with which the results of the experimentation are shown in the graph. 5. Plotter: In this part a graph is shown in which the signals obtained from the experimentation are displayed.

6. Time: This part shows an indicator that displays the time during which the user is carrying out the practice.

ii. For the interface of practices 3 and 4, the following paites are shown:

1. Voltage controller: This part shows a controller with which you can vary the amount of voltage you want to experiment with. Being Alternating Current requires amplitude and frequency of the signal, this because it is not constant.

2. Circuit diagram: This page shows the electrical diagram with which you are experimenting.

3. Circuit schematic options: This part shows the different circuit configurations that can be experimented with. Being Alternating Current, the available options are

Resistive and Inductive.

4. Vision: This part shows a button with which the results of the experimentation are shown in the graph.

5. Plotter: In this part a graph is shown in which the signals obtained from the experimentation are displayed.

6. Time: This part shows an indicator that displays the time during which the User is carrying out the practice.

In order to use this interface, the following steps are carried out:

to. You must have a valid reservation for the day and time you wish to enter the laboratory. b. The LabVIEW RunTime must be downloaded and installed on the computer on which the user wishes to work, this in order to use the application. c. The practice document must be downloaded and prepared. The documents are available in the MOOC Lab Practice menu. D. In the menu at the top of this web page, select the

Workstation for which the reservation was made,

and. In the access interface, the user must enter their username and password. The user must use exactly the same characters with which they created their username and password.

6) Instructor: This part shows the general data of the instructor offered by the laboratory to be taught.

It is important to highlight that the user can access the remote laboratories system through an interface that can be accessed from a computer with internet access, where through an access rat you can access the web interface, in which you will capture your data and they will be validated to be able to access the different practices that you have previously assigned, for that you first have to contact the program instructor and register for any of the different options, regardless of your geographical location, when you have access, you can use the interface that will establish contact With the server that manages the different laboratories, which can be physically in different places and be of different types, these laboratories are configured by a series of elements, (there may be different configurations of equipment or workstations) as available, the server will communicate with another computer that manages a device that will allow the control of dif erent tools and interconnected physical elements (this can be a DAQ or a PLC) as required, for example when A PLC is used, it controls a control process that can be determined by a Cartesian robot, a control room, an elevator, a warehouse, a sorting line, etc.

Generalizing and seeing an example, the components of the remote laboratory are the following:

to. PC Equipment: Physical equipment where the applications developed in

LabVIEWs that manage, execute, and store information regarding predetermined lab practices and instructions.

b. Workstations: can be replicated “n” times as required and are the physical spaces used for the practices, which can be applied electronics, automation, and other variants. In the case of applied electronics, these stations use an NI system. THE VIS, which is a modular engineering educational laboratory device that can include different devices such as an oscilloscope, digital multimeter, function generator, variable power supply, Bode analyzer that allow different operations to be carried out focused on carrying out practices / tests Engineering, this module allows the interconnection of a printed circuit board with the predetermined circuits and in turn with the equipment, for example, which executes preloaded algorithms that allow interaction between the remote user and the workstation, allowing to change, measure and apply different parameters. as if he was physically at the station.

These equipments allow to carry out different types of electronic practices, this because they have the necessary electrical components to be able to vary said parameters or previously predetermined practices by the instructor likewise, its implementation and effect is visualized by the interface. An example of the practices that are carried out on these stations and that are available in the menus of the remote laboratories are the following:

i. Practice 1 - Serial and Parallel Connections of an Electric Circuit (Direct Current Interface): This practice focuses on the calculation of the values of voltage, current and resistance through Ohm's Law and Kirchhoff's laws, so For this topic, three types of circuits are connected to the workstation: simple, series and parallel.

• The simple circuit consists of the series connection of a voltage source with a focus, this in order to vary the voltage of the first and see its effect by means of lighting in the second (Figure 3 ^a ).

• The series circuit is similar to the simple circuit, the only difference is that instead of one bulb, there will now be two bulbs that will be connected in series with the voltage source (Figure 3b).

• The parallel circuit consists of the power source connected to the two bulbs, the only difference is that now instead of being connected one followed by the other they are now connected from the same node

(Figure 3c).

ii. Practice 2 - Power Balance in Electric Circuits (Interface of

Direct Current): This practice uses exactly the same connections from practice 1 (simple, series and parallel). However, this topic focuses on calculating the powers of each component and determine that Kirchhoff's Law is also true in powers. It is not required to make any changes based on the previous practice because the data is the same, the only thing that changes in this practice are the concepts to obtain through mathematical calculations.

iii. Practice 3 - Impedance in AC Electric Circuits (Interface of

Alternating Current): In this practice the theory of the Current is reinforced

Alternates how it differs from direct and determines what the

User unlike the direct signal that the platform displays.

For this matter, two types of circuits are connected in series at the workstation, one of purely resistive impedance, and the other of resistive and inductive impedance.

• The resistive impedance circuit consists of a voltage source connected in series with a resistance (Figure 4 ^a ).

• The resistive and inductive impedance circuit consists of a voltage source connected in series with a resistance and an inductance (Figure

4b).

iv. Practice 4 - Real and Apparent Power (Alternating Current Interface): In this practice exactly the same circuits as the previous practice are used, however, the difference will be in the concepts learned and in the calculations that will lead the User to determine the result of those concepts. In this case, the circuits will be used to calculate the powers of each component of the circuit.

v. Practice 5 - Efficient Use of Energy (Alternating Current Interface):

This practice takes up the concept of Power Factor and how this it is a measure of energy use efficiency. Analyzing the results of the capacitive and inductive circuits, the practice consists of demonstrating experimentally how the power factor can be corrected or improved, so that we can make more efficient use of electrical energy.

The efficiency shown by remote laboratories has allowed the practice to be expanded, creating availability and comfort for users to carry out their practices in the laboratories, but it is also an integral tool that serves to complement online educational technology, which until At the time, it had the practical part without being fully developed, thus expanding the educational scope, the impact on training environments, making the use of facilities and equipment efficient, expanding the times and availability allowing a greater volume of users to use these facilities, also expanding the dissemination capacity of technical training programs since they do not have the need to be physically in front of the teams, avoiding the crowds and restrictions that the facilities' capacities may have at a certain time, this also allows organizations that they have no resources to have Its own facilities have access to a set of technical tools that, due to costs, would be difficult to have, also allowing said knowledge to be shared with a greater number of users, regardless of their location.

Claims

CLAIMS Having sufficiently described my invention, I consider as a novelty and therefore claim as my exclusive property, the content of the following clauses: 1.- Remote laboratory system for learning electrical, electronic and control circuits, as well as its implementation method characterized by consisting of the following elements: a) A technological structure made up of different devices, a computer with internet access, a preloaded application that communicates through one of the ports of the computer with a unit capable of taking a set of physical signals, converting them into voltages and digitize them so that they can be processed by said computer, thereby allowing interconnection with a NI ELVIS unit installed in a workstation; The computer equipment is connected by means of communications infrastructure to internet services using tep / ip protocols, establishing a link with a main or central server, which allows communication, access and administration of all the elements of the remote laboratory system, so that they can be accessed by a user; b) An interactive platform made up of at least three modules: • An SQL data management module, in which module the user data will be managed, created, validated and authenticated in the different databases created to generate their access to the remote laboratory and its different applications, it runs on the server principal; • A web module or cloud hosting, essential for the connection to the server, through this application you can publish and have public access to the internet, that is, it is the main means by which remote users can connect to the platform to interact with the workstations, said application interconnects with the peripherals of the remote laboratory providing a visual interface of the same, running on the main server; • A module for remote laboratory control, determined by an algorithm in LabVIEW with a command in the form of a block that allows both the acquisition of data from the connected circuit and the modification of its parameters, it is executed on the remote laboratory equipment ; c) A method of interaction between the user and a remote laboratory interface implemented by a computer to facilitate the exchange of content between entities through a computer network during a real-time communications session through said computer network, By means of this method, the user interacts with the different modules of the platform and their physical peripherals as determined according to the theme of the laboratory to be carried out, in this interaction the process of generating access will be executed, determine a time, schedule, the allocation of a physical station and to be able to carry out the activities determined by the instructor as well as the modification of parameters in each activity; 2.- Remote laboratory system for learning electrical, electronic and control circuits according to the preceding claim, characterized in that the technological structure allows the exchange of the unit that changes. Physical signals to electrical voltages digitized by at least one PLC that can control a process control system, such as an overhead-, a robotic arm, a Cartesian robot, a warehouse, a machining line, an automation process as required. 3.- Remote laboratory system for learning electrical, electronic and control circuits according to the preceding claims, characterized in that the number of workstations is proportional to the technical capacity of the technological structure in such a way that it allows the minus a couple of workstations scaling them to an undetermined number. 4.- Remote laboratory system for learning electrical, electronic and control circuits according to the preceding claims, characterized in that the SQL application module contains a database for the user to preload their data, creating an entity with password and its keypass allowing its validation and access to a menu of previously preloaded tools, allowing its entry to the platform and the menu of schedules, instances and a specific way to use the workstations and to have access to a series of tools and instructions preloaded by administrator. 5.- Remote laboratory system for learning electrical, electronic and control circuits according to the previous claims, characterized in that the LabVIEW module will validate the user's credentials, comparing them with those that the user has designated to enter the practice. with the reservation data found in the SQL server database previously entered to authenticate. 6.- Remote laboratory system for learning electrical, electronic and control circuits according to the previous claims, characterized in that the LabVIEW module validates the user's credentials, comparing the data that the user has designated to enter the practice with the reservation data in the SQL server database and establish communication with the device that controls the workstation. 7.- Remote laboratory system for learning electrical, electronic and control circuits according to the previous claim, characterized in that the interface of the LabVIEW module consists of two parts: a) An external one, where the interface consists of: vii. Remote IP Address representing the part where the address will be displayed IP of the person you want to connect viii. Remote User representing the part where the Name of the User who wants to connect ix. TeleLab-Server IP Address that represents the IP address of the server, the server address is divided into 10 sub-addresses for each workstation that you want to connect x. DateTfdimePacInt: Represents the part where the date and time when the practice will be open for the user who wants to connect is displayed. b) An internal one, where through the graphical interface, the administrator monitors the operation of all the devices and has the following parts: xi. Concatenated String 1 For Date, Time and User: This part shows the concatenation of the data, date, time and username registered from the user's request. xii. User, Password and Station: This part shows the data registered by the user when making his request to be able to use any of the workstations. xiii. Empty Login, Empty Reserve, Super User: In this part, each of these states saved by the work unit is shown by means of LED indicators. 8.- Remote laboratory system for learning electrical, electronic and control circuits according to the preceding claim, characterized in that the interface on its external part communicates with the server by executing the following steps: 1) The server port is read to which the user asks if it allows him to enter the practice 2) Once the request is made, the information encapsulated by the TCP / IP protocol is read to be unencapsulated and the data it carries out. During this first part, the IP address that is being communicated will be taken out and will be shown on the Front Panel in the Remote IP Address part. 3) After obtaining the information within the encapsulation of the protocols TCP / IP, it is necessary to take it to the SQL registry where Microsoft is used SQL Server Management Studio; at this point the reservation is validated so that it coincides with the request made by the user, all the parameters or information are converted to string type such as the date and time that the user will be working and are placed in the Front Panel in their respective apart 4) Once the data is obtained, it will be validated whether or not the person can enter the server to carry out the corresponding practice. This process consists of using the user information of the external part of the programming shown above and is compared with the information already registered in the server database of both the user's existence, the keypass, as well as the reservation data. Once this information has been validated, a response will be sent to the user in order to access the corresponding practice, in case the information provided is not correct, the user will not be able to access the practice. 9.- Remote laboratory system for learning electrical, electronic and control circuits according to claim 6, characterized in that the interface in its internal part executes the following steps to enable its options menu: • For the Empty Login indicator to light, the username and password must exist in the database; • For the Empty Reserve indicator to light, the reservation made by the user must exist in the database; • For the Super User indicator to light, only the administrator must enter their respective account; xiv. Reservations, Teams, Count Reservations and Count Teams, in this part cluster arrangements are shown for each of these data, which serve as indicators in which the information corresponding to each of the sections is displayed, this is briefly described in continuation: • In the Reservations part, the user's information is displayed along with the date and time that the reservation was made; • In the Equipment part, the information of the accounts of the users who carried them out is displayed; • In the Count Reservations section, the count of reservations made by users is displayed; • In the Count Teams part, the count of the times users entered the workstations is displayed; xv. Date / Time String: This part shows the concatenation of the date and time recorded from the user's request; xvi. Concatenated String 2 For User and Password: This part shows the concatenation of the username and password registered from the user's request; 10.- Remote laboratory system for learning electrical, electronic and control circuits according to the preceding claims, characterized in that the interface executes the following steps to carry out the validation process; a) The data received from the user request is validated through the protocol TCP, confirming the username and password. This information enters separately as strings, so they must be concatenated so that as a single string you can enter the database in a way that allows you to manage and search for information, this must be done from a route or address where the base of the concatenated string is stored so that the database allows to extract the data in the form of an array of clusters and is deployed in the corresponding clusters; b) The server checks from the same database if it has a reservation on the date and time when the request was made. The program captured the time the request was made and sends it to concatenate it with the username and search for it in the table of reservations within the database. The search procedure is very similar to the first event, since it uses the same components, the difference is that it will now search another table, including in this search the reservation dates made through the platform. If the information exists and is valid, it will be transferred in the form of a Cluster Array to display it and enable the Empty Reserve to ensure that it can be accessed. Otherwise, it will send an error message for not having a reservation at the requested time. Similarly, this part has a counter that indicates how many reservations have been made on this workstation. c) The operation of these events, in general, is broken down into the following steps: 1) The user makes the request to be able to practice, said information is received by a server, which is in charge of searching for said information in the database. 2) If the information provided by the user exists in the database, it is analyzed whether or not you have a reservation made, if you have it, you will be notified that you can access the practice and start working on it, if you do not Having the reservation made, the message will be notified and the user must make it. 3) If the information provided by the user does not exist in the database, an error message will be returned. 11.- Remote laboratory system for learning electrical, electronic and control circuits according to the previous claims, characterized in that validated access and reservation is passed to the web server, installed in the main server that will allow the publication of the content of the interface platform, which is made up of the following sections: 1) General information, the purpose of the laboratory is briefly explained and how globalization and telecommunications allow laboratory practices to be carried out at any time and place with Internet access; 2) Instructions, the instructions to follow in order to use both the reservation system and the work interface are shown; 3) Reservations, the User must enter their User Name and their Keypass to access the reservation system and set aside one of the stations at a specific time. To use this section, the following steps are carried out: I. You enter the default route in which the form that is in the opening section is filled to obtain a User Name and Password; II. The access code for the practice is obtained when carrying out the evaluation of each topic, in the evaluation of tana 1 you obtain the access code for practice 1 and so on; III. Build the Keypass, which will be made up of the password and the access key of each practice, without including additional characters; • With the User and the Keypass you enter the Reservation System and check the availability of schedules at work stations, you can choose any station and any available time. The reservation system consists of a screen in which, in addition to displaying the data of the selected username, day, time and station, it also shows a menu with tabs where each one represents the work station to be used; Within each tab a table is shown with the first column indicating the hours and the first row indicating the days, this in such a way that the user can select the time that best suits working with the tab's workstation. selected; IV. Make or modify reservations 1 hour in advance, once within that margin it is no longer possible to make reservations or changes; 4) Practices, here are the links to access the different practices which are sequential, as well as a brief description of the direct current and alternating current circuits; 5) Access interface, the link to download the executable application is displayed, with which the user can start working in the corresponding practice, as well as in the station that has been previously reserved; It is very important to have the LabVIEW 2014 Runtime Plug-In library installed so that this application can be used. This application has the following parts: to. Enter user, the user must enter their access data to access the practice; b. Enter keypass, the user must enter Keypass correctly to access the practice; c. Buttons of the stations from l to 10, the user must select the station that I reserve in the corresponding system to be able to access the practice; d. Attempt indicator, the user is informed of the number of attempts that are left to access the practice in case any of the data mentioned above is set incorrectly, the user has a maximum of three attempts, to exceed that margin, he will no longer be able to access the practice and will have to make his reservation again; and. Seconds indicator, indicates to the user how many seconds he has to access the practice, if the counter reaches zero he will no longer be able to access it and will have to make his reservation again; F. Cancel, the user is shown a button, with which he can decide to cancel his reservation to use the workstation; 12.- A method for the implementation of the remote laboratory system for learning electrical, electronic and control circuits according to the preceding claims, characterized in that it consists of the following steps: a) Define the type of laboratory, direct current, alternating current, control, process, etc. b) Assemble the required technological platform according to the laboratory; i) Server-Internet-PC-DAQ- NI ELVIS; ii) Server-Internet-PC-PLC-Control Process; c) Coupling application and hardware configuration; d) Create access to the remote laboratory interface, validation and data entry; e) Course selection and tumo registration; f) Selection of the practice to work, here you can select from one of the four practices, practices 1 and 2 use the same circuit and the same applies for 3 and 4; The interfaces that can be displayed depend on the Keypass that is used when making the reservation and are as follows: i. -For the interface of practices 1 and 2: I. Voltage Controller, a controller is shown with which you can vary the amount of voltage you want to experiment with. Being Direct Current, only one constant value is used; II. Circuit diagram, shows the electrical diagram with which you are experimenting; IlI. Circuit diagram options, the different circuit configurations with which you can experiment are shown. Being direct current, the available options are Simple, Serial and Parallel; IV.Vision, a button is shown with which the results of the experimentation are shown in the graph; V. Plotter, a graph is shown in which the signals obtained from the experimentation are displayed; VI.Time, an indicator is displayed that displays the time during which the user is carrying out the practice; ii.For the interface of practices 3 and 4: I. Voltage controller, here is a controller with which you can vary the amount of voltage you want to experiment with. Being Current Alternate amplitude and frequency of the signal are needed, this because it is not constant; ILEschema of the circuit, shows the electrical schematic with which you are experimenting; III.Circuit scheme options, shows the different circuit configurations that can be experimented with. Being Alternating Current, the available options are Resistive and Inductive; IV.Vision, here is a button that shows the results of the experimentation in the graph; V. Plotter, a graph is shown in which the signals obtained from the experimentation are displayed; VI.Time, an indicator is displayed that displays the time during which the User is carrying out the practice; In order to use this interface, the following steps are carried out: 1) You must have a valid reservation for the day and time you wish to enter the laboratory; 2) The LabVIEW 2014 RunTime must be downloaded and installed on the computer on which the user wishes to work, this in order to use the application; 3) To be able to access the laboratory, it is essential to confirm that you have a compatible browser. In this case, it is recommended to use the Internet browser explore version 8 or higher; 4) The practice document must be downloaded and prepared. The documents are available in MéxicoX or in the MOOC Lab practice menu; 5) In the menu at the top of this web page, select the Workstation for which the reservation was made; 6) In the access interface, the user must enter their username and Keypass, the user must use the exact same characters with which he created his username and password; 7) Instructor, in this part the general data of the instructor offered by the laboratory to be taught are shown, for this specific case Engineering subjects Electric; g) Generate practice qualification and feedback.