Smart locks: market overview in 2019

Smart locks: market review in 2018Technology for enhancing comfort is now called smart. They touched almost all spheres of life. In stores you can find smart kettles, crock-pots, light bulbs and even door locks. They will be discussed in the article. Special attention is paid to this topic, because the safety of your property, and possibly personal safety, depends on the quality and reliability of the castle. Locks come in various designs, both as a standalone device and as a superstructure over a conventional mechanical lock.

Z-wave Dana Lock fits most doors. Works in conjunction with a Z-wave controller or Z-wave gateway, except for which it is compatible with Fibaro Home Center 2 and Home Center lite controllers. It is installed instead of the core of the old castle, the mechanism remains the same. There is a video on the network about the installation process of this system.In addition to the lock, a number of products are included in the Z-wave smart home system, for example, a common controller Fibaro Home Center interacts with all connected...

 

Smart lamps: device, types and their application

Smart lamps: device, types and their applicationSmart home is a system that makes technology work for you and simplifies life. In order to make your home smart, you either need to radically redo the entire wiring and introduce microprocessor or even microcomputer control systems ... Or go softer, different way, gradually equipping it with smart things. The simplest thing you can do is automate the lighting. This article will discuss how smart lamps help in this and what it is.

What is a smart lamp? The concept of "smart" or "smart" in our time is glued to almost all technology. Progress has come to seemingly such a simple and mundane thing as a light bulb. What is called a smart lamp? There are two possible answers: A lamp or a full-fledged lamp with additional functions, such as automatic switching on by popping, human presence, in the dark and when other sensors are triggered. Lighting device with a set of sensors and a microcontroller system ...

 

Microcontroller Remote Control: IR Remote, Arduino, ESP8266, 433 MHz

Microcontroller remote controlThe issue of remote or remote control of electrical equipment has always been and will be relevant, regardless of whether there are automation tools in the system or not. To organize a remote control, it does not matter at all whether a microcontroller is needed; it all depends on the necessary functions assigned to the managed device. In this article, you will learn general information about how to remotely control a microcontroller.

There are two main types of remote communication. Wired - when the control of actuators located in one room (or not the room) is carried out from the control panel or from a button post located in another place. In this case, an electrical wire connection of the control circuits and actuators (relays, contactors, which include mechanisms, such as motors or systems, such as lighting) is provided ...

 

WiFi relay Sonoff world on - device overview and examples of use

WiFi relay Sonoff world onThe Sonoff World On relay, from the family of devices for wirelessly controlling the inclusion and disconnection of household loads via Wi-Fi from the network, will become a rather useful and convenient element of your home automation system. If you use a smartphone, you have Wi-Fi at home, and you also want to control the power of various network loads directly from your smartphone, even if you are away from home, then these Wi-Fi relays are just for you.

Just install the Sonoff relay near the outlet or switch (or even instead of the outlet or instead of the switch), and connect your household appliance in series through it with a 220 volt network.Then create a connection via the Internet, configure the connection with the relay via Wi-Fi, and control your household electrical appliances directly through the application from your smartphone. Let's take a closer look at the five Sonoff World On relay models. Relaydesigned to control the power of any electrical appliance ...

 

Modern methods of remote control of street lighting

Modern methods of remote control of street lightingIn any village on the streets there are lighting devices. As a rule, these are powerful lights installed in accordance with the requirements of the infrastructure. Turning on and off the lighting fixtures at the right time becomes possible thanks to the use of a time relay. Similarly, it is possible to automate the lighting of a personal plot and it is easy to make optimization - in some places add motion or presence sensors - this will significantly reduce energy consumption.

The heart of the lighting automation system is the control cabinet. Here, circuits are established that are responsible for monitoring the loads, for distributing power, for protecting the luminaire relays from power surges and short circuits. This is a kind of automated control panel. The control cabinet equipment needs to be serviced and updated from time to time so that the cable functions ...

 

Functional Block Diagram Language (FBD) and its Application

Functional Block Diagram Language (FBD) and its ApplicationOne of the most popular programming languages ​​of PLCs - programmable logic controllers, is the graphic language of functional block diagrams FBD - Function Block Diagram. This language, along with other languages ​​of the IEC 61131-3 standard, such as for example the ladder logic (LD) language, uses in its architecture a kind of electronic circuit.

A program written in this language for a controller consists of a certain list of circuits that are executed one after the other from top to bottom. In addition, there is the possibility of assigning labels to individual chains, in this case, the use of instructions to go to the label will be available in order to change the sequence of execution of chains, and create conditions and cycles. Thus, a program written in the graphic language FBD is a set of functional blocks connected to each other, the outputs and inputs of which are connected by communication lines ...

 

LD Ladder Language and its Application

LD Ladder Language and its ApplicationThe ladder or ladder diagram language LD (from the English Ladder Diagram) is an easy-to-use, graphical development language. It is based on relay-contact circuits, so the logic elements here are: relay windings, relay contacts, horizontal and vertical jumpers.

A pair of relay contacts or buttons are the main logical variables of the LD language, while the state of the variables is nothing more than the state of the contacts: open or closed. The program itself in this graphic language seems to be an analogue of the relay circuit, which can include many different functional blocks. In general, the syntax of the LD language makes it very easy to build logic circuits for relay technology. As such, the language of relay circuits existed in the time of Thomas Edison, and only in the early 1970s it was adapted for the first PLCs ...

 

Which temperature sensor is better, sensor selection criteria

Which temperature sensor is better, sensor selection criteria

First of all, it is necessary to find out the following details: the expected temperature range of measurements, the required accuracy, whether the sensor will be located inside the medium (if not, a radiation thermometer will be needed), the conditions are assumed normal or aggressive, is the possibility of periodic dismantling of the sensor important, and finally, is it necessary graduation is in degrees or it is acceptable to receive a signal, which will then be converted into a temperature value.

These are not idle questions, answering which the consumer gets the opportunity to choose for himself a more suitable temperature sensor with which his equipment will work in the best way. Of course, one cannot simply and unequivocally answer the question of which temperature sensor is better, the choice remains to be made to the consumer, having previously familiarized himself with the features of each type of sensor ...

 
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