The era of remote equipment control is becoming a reality. Operational remote control of PPU pipelines - an effective means of control or a useless application? Acceptance of the UEC system into operation


Country house built - the next step observe and control electronics in the house from anywhere in the world. Everyone who has already been puzzled by the question of how to do this knows that inexpensive and simple solutions not on the market. But I carefully studied this issue and found a solution in order to not only receive real-time video broadcasting, but also to have temperature / humidity information from wireless sensors installed in different places of a country house. The sensors also have shock sensors, which allows them to be used as part of a security system. In this case, the connection to the Internet is carried out using an ordinary 3G modem!

So let's go!


It seems that difficult - installed in country house 3G modem, set up DDNS and it's done! And here it is not. Mobile operators are very cunning and will not miss the opportunity to make money. The whole problem lies in the "gray" IP address, which is issued when you connect to the Internet. I won't go into technical details, but remote access you will never get from the Internet to a local network. Mobile operators offer the service of a real ip-address for 100-150 rubles per month and this is not such a critical amount, but there is one BUT: when using this service, traffic is billed per megabyte at rates of about 10 rubles per megabyte! No traffic packages are active.

There is another option to get remote access is to raise a VPN tunnel between the local network in a city apartment and a country house. This will require flashing the router in the apartment, raising a VPN server on it, as well as buying a real ip-address service from a city provider. After that, you will be able to remotely connect to the apartment local network, which will be connected to the country house. There are no other solutions.

But if you cannot get remote access to the local network behind a 3G modem, you need to look for another solution. Namely: so that the devices that we need to access work through the developer's public server. That is, devices located behind a 3G modem themselves upload data to a server on the Internet, and we will already connect to this service.

2. The budget version of the Internet for a country house looks exactly like this. Router Asus RT-N10U worth 800 rubles, "out of the box" supporting USB 3G modems. It has only one antenna, so maximum speed in the 802.11n network - 150 Mbps. He, like the rest electronic devices connected via a UPS in case of power outages (energy reserve is sufficient for a day battery life). Where to get internet? I have no particular desire to advertise MTS, but they are the only ones who offer real unlimited traffic in the Moscow region for only 600 rubles per month. True, they also did not do without an attempt to deceive - in the middle of the month they suddenly decided to write off not only 600 rubles a month from the account, but also 24 rubles a day. As a result, by the time of the next monthly payment, there was not enough money on my account to renew it, and I was left without the Internet. From the good - in the support service they recognized their cant (surprisingly!) And for free (in fact, taking into account illegal write-offs - for half the price) they turned on the Internet on next month. Internet speed during the day is 3-4 Mbps for receiving and 1-2 Mbps for sending. At night, the reception speed jumps to 7-8 Mbps. The cost of a 3G modem was 100 rubles (700 rubles total cost including the fee for the first month of internet). None of the other mobile operators have offers for unlimited Internet in the Moscow region for this money.

3. Let's start with video surveillance. Let's take the camera from the Chinese manufacturer Harex. This camera is notable for the fact that it works through the Chinese NVSIP video broadcasting service. The company produces only wired (Ethernet) cameras, Wifi is not even available as an option. The cost of the camera is 1000 rubles, another 200 rubles is the power supply. The camera setup is a bit non-trivial, for these purposes you need software that exists exclusively under Windows. By default, the camera is already registered on the NVSIP service and you definitely need to go to the settings and change the default password.

4. The NVSIP site itself also only works in Internet Explorer, but this is not important for us. iOS and Android have their own apps. As you might guess, streaming to mobile devices is much less than 720p, but it's good enough to see the details. Below are real screenshots from the phone screen. There was a small jamb with the infrared illumination of the camera - when the camera is installed as in the photograph (this is a temporary solution), the infrared illumination reflected from the white edges of the body and illuminated the entire frame. In reality, IR illumination penetrates 15-20 meters in complete darkness. The camera can be bought on Aliexpress (http://www.aliexpress.com/store/609704).

The system can be easily supplemented with other cameras, and archived video is recorded on a computer with running application IPClient. 1200 rubles for a camera is a great price. Live video can be accessed from anywhere in the world.

5. Go ahead. Remote monitoring and control system - Wireless Sensor Tags (http://wirelesstag.net). These are a variety of wireless sensors powered by a CR2032 battery that transmit controlled parameters to their own base via radio. At one time, the base connects via Ethernet to a router with the Internet and uploads all the data to the service website. Basic functions include fixing temperature, humidity, rotation angle, opening, water leakage, movement, etc. Remote access is possible through the website or application for mobile devices. Device developers in this moment engaged in creating their own controlled thermostat, as well as integration with the Nest thermostat. This will allow you to remotely turn on / off heating and ventilation.

6. Main wireless sensor. Measures temperature, humidity and tilt angle. It also has a built-in LED and a beeper, which allows you to use it to search for lost things. Inside there is a CR2032 battery, which will last for a year of operation with default settings transmitter power (distance up to 60 meters from the base) and data update frequency (every 15 minutes).

7. The leak sensor looks like this. It does not have an LED and a beeper. According to the manufacturer, the sensors themselves are not sealed and do not have protection against water, this should be taken into account when placing. There are also motion and opening sensors in the range.

All this was invented in America, the device is unique, there are virtually no alternatives on the market.

8. And here home base. Connects to USB power and Ethernet to network. It is registered on the server by its serial number. From interesting observation- communication speed over twisted pair is 10 Mbps, but why more? There are operation indicators on the base: communication with sensors, communication with the server, reception, transmission, error.

9. Kumostat mobile application for iOS. It is written a little crookedly and sometimes buggy, but it is regularly updated. The main screen shows all the sensors registered on the base (you can take a photo for each directly in the application for easy identification) and the parameters registered by them: temperature, humidity, time latest update, signal strength and security status. In the event of an event, a push notification is instantly sent to the user's device (several mobile devices can be registered in the system for one account).

10. Here are some application screens. The first is a list of all events in chronological order. Next, two screens for a specific sensor. The amount of customizable options is amazing. For example, you can set a controlled temperature range, and if the temperature becomes lower or higher, you can set up instant notifications by e-mail, a push notification, or even a tweet! And the coolest thing is the graphs of changing parameters for each day. It's incredibly exciting to see how temperature/humidity changes throughout the day.

11. This is what the web interface looks like. The functionality is even more than that of a mobile application. As you can see, I have 4 sensors: on the front door, under the bathroom, in the kitchen and in the well. In the future, I plan to install a controlled thermostat and remotely control the operation of the air heat pump. Also, the system is elementarily supplemented with perimeter control sensors and we get a full-fledged burglar alarm (I won’t talk about this for obvious reasons - you’ll figure it out yourself).

12. Graphs of temperature changes for 6 days. The system apparently stores all the data from the moment it was turned on. It is especially fascinating to observe the temperature change in the well (while the sensor is hanging at a depth of 1 meter from the ground, I plan to hang it deeper).

13. Graphs of changes in humidity just blow your mind. True, pay attention to the scale of the vertical scale - it turns out that everything is not so scary. In a good way, they need to be calibrated, but I have not yet found a reference hygrometer.

14. The number of settings is amazing. You can even change the operating frequency and baud rate between the base and the sensors. The service also allows you to use scripts to automate actions and use such interesting things as Geofence - disarm / arm when you and your mobile device are within a set radius of the object. Of the serious vulnerabilities - the lack of password encryption account. When you recover your password, it will come to you in unencrypted form.

15. How much does it cost? $25 for a universal wireless tag and $65 for a base. Another delivery to Russia will cost 18 dollars. Everything in the photo cost $170. Considering that there are no alternatives on the market at all, and an attempt to make such a device on your own will run into the problem of a “gray” IP address for a 3G modem, I cannot say that it is very expensive.

More detailed information about tags, see the official website -

Device capabilities for remote control heating every year (what is there with the year - almost monthly!) are becoming more and more perfect. Smartphone app developers try to make them easy to use and easy to understand even for untrained people. Briefly, we list only the main features of such systems that support:

  • normal operation, when the set temperature is maintained throughout the house;
  • zonal mode, when different rooms can have individual temperatures;
  • prevention of defrosting of the heating system (freezing of pipes) in the cold season, when you are away from your country house or cottage;
  • the possibility of early switching on the boiler, for example, you need to warm up a country house when you are going to visit it on weekends or holidays;
  • always be aware of the operation of your autonomous heating and, if necessary, carry out its diagnostics;
  • time regime in which different time during the day, the house can maintain its own thermal regime with a significant reduction in material costs for fuel, for example, you can set the boiler to low power (respectively, to low fuel consumption), going to work or on business, and turn on the normal mode before returning.

Remote heating control means that any of these modes, as well as specific room temperatures, are changed using mobile communications, or the heating is controlled via the Internet.
This approach is part of the ideology of creating a “smart home”, what entails further development all engineering systems at home in order to ensure ease of use and create the most comfortable conditions residence.

Which heating system can be controlled remotely?

In country houses and cottages, two-pipe systems with forced circulation of the coolant are currently most often used: the circulation pump pumps the coolant through the entire heating system, which, thanks to the distributor comb, can be supplied to each heater.
In such systems, as a rule, a heating system safety block is used to protect it from destruction in unforeseen situations, for example, in the event of an increase in pressure beyond the allowable one.
It is also necessary to have additional equipment to control the operation of the heating system: sensors, special valves and devices for adjusting the coolant flow, and it is also necessary to combine various devices into an information network

Weather-compensated heating control

To date, it is considered the most promising. In such systems, in addition to the room temperature sensor, an external air temperature meter is also used. In principle, a weather-dependent heating controller will work with one external sensor, but using two allows you to achieve more accurate mode maintenance and even implement self-adaptation of the system to specific temperature changes: if it gets colder outside, then the temperature of the coolant in the system rises in advance, if it is warmer - then decreases in advance. In addition to saving fuel, this reduces the inertia of the system, which increases its efficiency and also provides additional cost savings. One of the basic points of the weather-dependent heating control can use a temperature of plus twenty degrees - with it, the temperature of the coolant is taken equal to the ambient temperature, while the heating is actually turned off. It is also necessary to take into account the zonal temperature control, i.e. if, for example, in one of the rooms gathered a large number of people, due to which it became hotter in it, the system detects a local increase in temperature relative to that set by the weather heating controller, and makes a correction in this zone.
In general, serious battles flared up on the Internet about - is it worth using weather-dependent automation at all or is it money thrown to the wind? In short, the opinion of our specialists, confirmed, by the way, by the reviews of numerous customers, is unambiguous - yes, it is worth it, but not in all cases. And in what? Answer

Types of remote control heating systems

Currently, two systems are used for remote control of heating:

  • using a set of equipment with an Internet gateway. The presence of a Wi-Fi router and the Internet in this case is mandatory.
  • using a GSM heating control module. Requires a special GSM module with a SIM card from a mobile operator.

Remote control of the boiler room using mobile GSM

But what if there is no wired Internet in a country house? How can the heating be controlled in this case?

Yes, very simply - with the help of a special GSM module and, of course, mobile phone. In fact, the GSM module performs the role of your personal assistant - you called him, gave him a command, for example, to pre-heat hotter by a certain time - and the whole family will come to a warm and comfortable house. Or vice versa, if you forgot in the morning, leaving for work, to reduce the power of the boiler is not a question, you can do it right from work, via the Internet or directly from your smartphone, while you are still getting to work. The GSM module is a compact device with its own SIM card of any operator (it is important that it provides reliable signal reception in the area), which allows you to control the indoor climate from any phone (satellite, mobile or fixed line), tablet or PC.

Depending on the settings you have made, your phone will either receive short SMS notifications with various information and instructions for changing the heating boiler settings, or you will receive phone calls with various information about the operation of the heating system. A special mobile app(there are versions for Android, and for iOs, and for Windows phone), which allows you to directly remotely control almost all parameters of the heating boiler.
The GSM heating control module is essentially a computer docked with external sensors and having the ability to change the operating modes of the heating system. Naturally, the module must be in the zone of reliable reception of mobile operators.

GSM heating control module can operate in several modes:

  • automatic, when, based on signals from installed sensors, the controller maintains the specified modes according to the specified program;
  • SMS heating control when the heating system is controlled by sending SMS. In this case, when new data arrives, for example, about the temperature in the room, the controller accepts them for execution and begins to automatically support them;
  • warning, by sending alarm messages about the current state of the house (gas leak, break in the water supply system, etc.);
  • remote control of other devices connected to the GSM module (watering, lighting, alarm, etc.).

GSM - heating control allows you to remotely:

  • receive indoor temperature reports;
  • receive notifications about the current state of heating equipment;
  • change the operating mode of the system by raising or lowering the temperature, including separately in each room.

Heating control is not limited to these functions. In principle, any heating system can be turned into a remote one. To do this, it must have an automatic mode of operation, and a special GSM controller must be connected to it to control heating and communicate with the subscriber.

Remote control of the boiler using a set of equipment with an Internet gateway

Now consider the option of remote control of heating, if the country house or cottage has the Internet and, of course, a Wi-Fi router (aka a router).
Everything is much simpler here - you can see the capabilities of the devices proposed below and forever forget about worries about the state of the heating system in your home.

Salus IT500 provides control and adjustment of operation parameters in a maximum of two heating zones, for example, in the 1st room on the first floor of the cottage and the shower room on the second floor.
The kit includes an actuator (boiler receiver), a 2-channel room thermostat (weekly boiler programmer, boiler control panel) and an Internet gateway connected to an Internet router (router).

Possibilities of controlling the heating system using a set of equipment with the Salus iT500 Internet gateway:

  • control of heating only modes (boiler and, if necessary, pump);
  • management of several heating zones;
  • management of heating and hot water supply of a country house.
  • maintaining different temperatures in different rooms, schedule temperature conditions by days, hours and minutes
  • 6 preset heating modes on delivery
  • hot water heating control, automatic control modes, including energy-saving and "holiday" mode.
  • a unique system for connecting devices via the Internet, providing reliable connection and control of the heating system: a smartphone (or Personal Computer) -> Internet server -> router (router) -> thermostat -> receiver -> boiler

All equipment is wireless and communicates with each other via a radio channel, i.e. no need for electrical wiring. The room thermostat for the heating boiler is programmed for daily, weekly or 5+2 operating modes. Displayed on the thermostat screen and in applications for remote control of heating current state boiler, current temperature and set temperature. Schedule setting can be done from the thermostat panel, web browser or mobile app.
The thermostat has a modern design, is highly reliable and safe to use.
With the use of additional Salus Controls equipment, it is possible to control, including remote control, underfloor heating, gas and electric boilers, oil heating systems, as well as almost any other heating systems and devices.
Remote management does not require a dedicated external IP address, the entire system works perfectly on any mobile Internet (Yota, Megafon, Beeline, etc.), it is also possible to manage from computers and mobile devices on operating Android systems and iOS.

What to do if there is no wired Internet in the house, and a Wi-Fi Internet thermostat has already been purchased?

Most likely in the country there is coverage of mobile operators, isn't it? So you have internet! Just buy a Wi-Fi router with a USB port and in addition to it a 3G or 4G modem. Install a SIM card of any mobile operator in the modem that provides a reliable signal in the area where your home is located. You insert the modem itself into the USB connector of the router and that's it - now you have the opportunity to control the heating of the dacha remotely!

If for someone the iT500 seems expensive, the company offers a more budget solution - an internet thermostat Salus RT310i
The thermostat has somewhat reduced capabilities compared to the "big brother", but it can be a worthy replacement due to the lower price of the kit. Externally, the RT310i looks more modest compared to the first-class high-tech design of the iT500, it lacks touch controls, but the models are almost identical in functionality. Except that while the iT 500 is capable of controlling 2 heating or cooling zones, the RT310i can only control one zone.

Missing the features of the iT500? No problem - Salus iT600 can do it all and more!

If you do not have enough iT500 functionality to control only two heating zones, then on our website a more functional one is presented multizone(there are wired and wireless versions) system Salus iT 600 smart home . Well, something, and its capabilities for remote control of heating (and not only!) Will be enough even for the most demanding consumer!

iT 600 Smart Home combines the ability to control underfloor heating, remote control of heating using thermostats, single switching at the “smart home system” level, temperature change in each room using a smartphone with Internet access, control and management of any electrical appliances in the house, connecting sensors for opening windows and doors, and many others functionality. The system was far ahead of not only its competitors in the field of remote heating control, but also set the trend in the field of automation and dispatching of engineering systems for many years to come!

More information about the system capabilities can be found in the article:
Smart House. Heating control system SALUS iT600

Attention! The new line of Salus iT600 Smart Home products is already on sale!

Now you can not only remotely control heating, but also protect your home and control electrical appliances!

Now you have the opportunity buy Salus iT600 Smart Home- a new line of automation for the Smart Home!

This is the same complete system for remote control of heating via the Internet. iT600 plus additional features:

  • using a universal internet gateway The Smart Home UGE600, which now supports up to 100 ZigBee wireless devices, replaces last year's Salus G30 gateway.
  • control and management of various electrical appliances connected to Salus SPE600 smart sockets with the ability to account for consumed electricity
  • connection and control burglar alarm using wireless sensors for opening doors or windows Salus OS600 Door Sensor
  • managing your system just got easier, thanks to the new Salus Smart Home app for iOS and Android smartphones, whose interface and device registration have become much simpler and clearer!

All system components are wireless devices operating in the modern ZigBee home network standard, now you can create individual groups devices that work in the same bundle and which can be assigned individual tasks.

In the future, the company's engineers intend to expand the capabilities of the smart home control system, but now you can buy Salus iT600 Smart Home, starting with the essentials, and build your Smart Home at a very attractive price!

And what about the owners of outdated heating systems?

Tech WiFi 8S can control the temperature in 8 rooms, each of which can have up to 6 thermal actuators!
In addition to controlling thermoelectric actuators, the controller can also control the boiler: when the set temperature is reached in all rooms, it will turn off the boiler using a “dry contact”.
Buy heating control system TECH WiFi-8S

Remote control of complex heating systems

All a large share in this market segment, the Polish company Tech Controllers, which produces wide range controllers with remote control capability.
By themselves, Tech controllers are multifunctional devices that are the main, basic part of the system, which can remotely control heating systems of almost any complexity using additional modules. There are a lot of possibilities, therefore, using an example, we will consider only the possibilities for remote control.

Tech Controllers Hardware Installation Example

In the photo for installation used:
1. Controller Tech ST-409n- a multifunctional device designed to control the central heating system, providing:
interaction with three wired room regulators
interaction with a wireless room thermostat
smooth control of three mixing valves
DHW pump control
return temperature protection
weather control and weekly programming
the ability to connect the ST-65 GSM module for remote control of heating from a GSM smartphone
the ability to connect the ST-505 module, which allows remote control of the boiler via the Internet.
Possibility to control two auxiliary valves with additional modules ST-61v4 or ST-431 N
Control capability additional equipment, for example garage doors, lighting or sprinkler, etc.

Various Tech modules can be used for remote control, it all depends on the specific needs of the owner. For example:

What if the heating system is so individual that none of the above solutions can fully meet the needs of its owner to manage it?
There are no hopeless situations! Most often, the customer himself simply does not understand (and should not!) All the possibilities modern systems remote control heating. It is really difficult for an unprepared person to understand all this abundance of devices offered on the market, which are completely different from each other in terms of functionality, price, and, of course, quality. Yes, and installers, often, simply do not have an idea about the possibilities for controlling heating systems - their task is to mount the system, but how often you will run around the house (or to the boiler room) and turn various valves to ensure constant thermal comfort, they do not care . Our specialists more than once had to almost completely remake the "creations" of such craftsmen, and this, believe me, costs a lot of money. A miser pays twice... Contact us, we will consult for free, and if necessary, we will install a remote control system for heating, we will help with the selection of high-quality equipment at an affordable price.

The specialists of the company "Termogorod" Moscow will help you choose the right one, buy as well as install a remote heating control system, find an affordable solution. Feel free to ask any questions you may have, telephone consultation is absolutely free!
You will be satisfied cooperating with us!

remote control

a method for detecting a violation of the protected area of ​​the GG (water area, object) using SC (systems) and devices. D. to. it is also carried out in order to check the operability (serviceability) of the SC (system) and devices, it is carried out by the duty officer for communications and signaling (the duty officer at the outpost), as well as by the border detachment directly at the protected area of ​​the GG. Results D. to. are recorded in a special journal.


Border Dictionary. - M.: Academy of the Federal PS of the Russian Federation. 2002 .

See what "Remote control" is in other dictionaries:

    remote control- (ITU T Y.1314). Telecommunication topics, basic concepts EN remote monitoringRMON ...

    remote control (object state)- [Intent] EN remote monitoring ... Technical Translator's Handbook

    remote network monitoring- - Telecommunication topics, basic concepts EN remote network monitoringRMON ... Technical Translator's Handbook

    remote collection of administrative information- environment for remote control of the network remote control remote monitoring - [L.G. Sumenko. English Russian Dictionary of Information Technologies. M.: GP TsNIIS, 2003.] Topics Information Technology in general Synonyms Wednesday ... ... Technical Translator's Handbook

    remote- oh, oh. distance f. 1. Rel. to a distance (distance), produced, acting at a distance. Remote measurements. Remote control. BAS 2. ♦ Remote bomb, grenade. Bomb, grenade, exploding in the air. BAS 2. Romanian ... ... Historical dictionary gallicisms of the Russian language

    boiler remote controller- (provides continuous monitoring and regulation of the main parameters and heating modes of the boiler) [A.S. Goldberg. English Russian Energy Dictionary. 2006] Topics energy in general EN hot water boiler remote control … Technical Translator's Handbook

    remote- 4.1.3 remote (wireless) control. Source: GOST R ISO 21467 2011: Earth-moving machines. Machines for…

    GOST R 53698-2009: Non-destructive testing. thermal methods. Terms and Definitions- Terminology GOST R 53698 2009: Non-destructive testing. thermal methods. Terms and definitions original document: 2.2.1 active method of thermal non-destructive testing; active method: A method of thermal non-destructive testing in which an object ... Dictionary-reference book of terms of normative and technical documentation

    GOST 25314-82: Non-destructive thermal control. Terms and Definitions- Terminology GOST 25314 82: Non-destructive thermal control. Terms and definitions original document: 14. active method thermal non-destructive testing Active method A method of thermal non-destructive testing, in which the object of control ... ... Dictionary-reference book of terms of normative and technical documentation

    GOST 27452-87: Equipment for monitoring radiation safety at nuclear power plants. General technical requirements- Terminology GOST 27452 87: Control equipment radiation safety on the nuclear power plants. General technical requirements original document: Emergency radiation environment Radiation environment corresponding to unexpected significant ... ... Dictionary-reference book of terms of normative and technical documentation

Books

  • Remote forecasting of kimberlite magmatism , Serokurov Yu.N., Kalmykov VD, Zuev VM. The paper briefly characterizes the objects of forecasting and prospecting, views on their structural control. A technology has been proposed that makes it possible to delineate areas of development of the known kimberlite…

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The remote control and production management system in the machine shop allows one dispatcher to control the entire production process using communication and signaling facilities. A similar system of centralized control in the forging and pressing shop allows the dispatcher to control the use of presses, to observe the entire cycle of thermal furnaces, and the television installation allows the dispatcher to monitor the work of the shop transport.

Remote control systems in oil refineries and petrochemical plants have the most wide application. In this case, the transmission distance of readings usually does not exceed 300 m, which turns out to be quite sufficient. Telemetry systems are used to transmit measurement results over a distance of several tens of kilometers (and sometimes hundreds). In such systems, the measurement result with the help of a transducer (sensor) is converted into encoded, usually discrete signals transmitted over the appropriate communication channel. In the secondary device installed at the other end of the communication channel, these signals are converted and recorded in digital or analog form.

Remote control systems for process parameters allow centralized control technological processes. When placing in one place secondary devices of remote control systems of any production process duty personnel (operators) get rid of the need to be in in constant motion on the territory of production or installation to take readings from instruments and make adjustments to the course of the process.


More common are remote control systems in which the measured parameter is converted into a physical quantity that is more convenient for transmission over a distance. With this method, the distance between the measuring device and the actuating element can reach 3 km, and the signals are transmitted via communication lines.

There are several local and remote control systems. The local system is obtained by installing devices directly on the units of the object or next to them, and the remote system is obtained by using devices with devices for transmitting readings over a distance. If the information comes to the central board, where the reading devices of all controlled parameters are concentrated, then the system is called centralized. These systems usually operate automatically, without direct and continuous action on them by maintenance personnel.

Pipeline companies use remote monitoring and control systems in various combinations and with varying degrees automation.

When drilling fluid enters the choke manifold, the remote pressure control system starts to operate on the control panel located on the floor of the drilling rig. The drilling choke operates in the following positions: fully open - the flow of the solution freely pours out; not fully open - solution flow adjustable; the nozzle is completely closed - the flow is blocked. As soon as the drilling fluid flow enters the choke, it is choked through the annular flow area between the nozzle tip and the nozzle seat.

Therefore, it seems more correct to use thermistors in remote temperature control systems not as temperature sensors, but as signaling sensors of certain temperature limits (permissible for a controlled environment). Therefore, in case of damage or wear of thermistors in the installation, it is necessary to reconfigure the equipment and recalibrate the receiving devices. It is clear that this operation is easier to perform for two points than for the entire scale as a whole.

One of the main parts of pipeline operational diagnostics is a remote control system. The principle of building remote control is based on multivariate analysis the results of centralized collection and processing of information on a computer: the main characteristics of the metal and its continuity both in time and depending on periodically switched on or continuously operating sensors of an extensive control network. Correlation analysis of data on the dynamics of the properties and continuity of the metal, taking into account the extrapolation of trends, makes it possible to predict the reliable operation of pipeline elements in the short and long term. Methods and means periodic control are selected taking into account the diagnosis of certain elements of the oil pipeline, as well as on the basis of criteria that ensure the requirements of reliability and efficiency.

Block diagram of the remote control system. PP - primary converter. VP - secondary device (other designations in the signature to.

The diagram of the remote control system is shown in fig. 1.5. Remote control systems with the transmission of signals in the form of compressed air pressure are widely used in the chemical, petrochemical and mineral fertilizer industries. At the same time, the distance between the primary and secondary devices reaches 300 m, which is quite enough to centralize the control of objects within the same production or one process unit. Remote systems allow you to control the operation of equipment and the progress of the production process from one place - the operator's premises. Usually, a control panel is installed in this room, on which secondary devices are placed.

Compressor stations with three or more machines must be equipped with a system for remote control and signaling of the operation of the units with the following instrumentation installed on each compressor: devices for remote control of temperature and pressure of air, water and oil, as well as devices that signal the deviation of the compressor from normal mode for these parameters; devices that automatically turn off the compressor when the pressure and temperature of the compressed air rise, as well as when the supply of cooling water is interrupted.

To determine the operating mode of wells in the fields, automated remote control systems should be provided.

Good afternoon!

I think my experience may be useful to someone. By at least, I could not find at one time answers to a number of small technical questions that I will cover in this topic.

The initial task at least is to monitor the state of the climate in a house located 20 km from the city, where I now come only on weekends. The maximum task is to receive extended information about the state of the heating system parameters and be able to remotely adjust the modes and variables.

Heating equipment - boiler WOLF COB-29CS. To this boiler the manufacturer sells the ISM1 module, which is connected to the boiler via the eBus bus and allows you to exchange information with the boiler in a two-way mode. ISM1 is designed either for direct connection to a PC via RS-232 or for connecting a voice modem to it.

In modem mode, you need a modem on the ISM1 side and a second modem on your side. For the module, the Germans recommend using Siemens TC35i. The modem option seemed to me not very convenient.

The second option is a direct connection to a computer. If you use a constantly turned on low-power computer, then in principle, if you have an Internet connection, you can get on it from the outside and carry out both monitoring and system management.

Internet connections. Given that the house is located outside the city, the only available option is a 3G modem. According to the experience of operating 3G modems, especially at the point of location at home, it was noticed that the modem loses connection from time to time, and re-initialization of the modem is required to resume. That is, there must be a mechanism for independent, on the modem side, checking and restarting the system.
For the test, we purchased a 3g router from Beeline. I was interested in how stable it will maintain the connection. Not how much. That is, if the connection is lost, then the router simply loses access to the network. We can restart, he does not guess. The solution is wonderful for a home-office, but it is definitely not suitable for remote use. Friends advised me to pay attention to the dlink dir-320 router. With firmware from enthusiasts, it allows you to connect a 3G modem to it and distribute the Internet. Plus, since this is a device on which Linux is running, you can write a simple script that regularly checks for the presence of the Internet and if it does not detect it, then start the modem restart procedure.
dir-320 was purchased, reflashed, the huawei e150 modem from the beeline was recognized by the device and connected without any problems at all. Next, I put together a simple script that pings google.com and, in the absence of a ping, restarts the router.

Now the second part of the Marlezon ballet is work with ISM1. For the needs of working in conjunction with the ISM1 module, I chose a netbook on an atom processor. The choice was made taking into account low power consumption and sufficient (up to 6 hours) battery life in the event of a power failure. Along with the ISM1 module, the engineer gave me a usb-com cable, which he used himself when he tried to connect the module to different systems. The lace was determined by the computer as an adapter based on the Prolific chip. This is where the torment began, which lasted a week and a half. On the PC side, the interaction with the boiler is carried out by the WRS program downloaded from the website of the German manufacturer. First impressions were very negative. The program established a connection every other time, each time in case of failure it was necessary to reboot for a long time. The work was very unstable, everything hung all the time. I almost lost hope of getting this iron to work. It turned out that the whole reason was a buggy cable on a chip from prolific. The guys in the profile forum advised us to use adapters based on a chip from FTDI. I managed to buy such an adapter and everything immediately worked.
In order to "log in" to a remote computer, I use the TeamViewer program, the developers of which allow it to be used for free in case of non-commercial use. By the way, the client part of the teamviewer is available for both Phone and Android. Thus, from my htc Desire I can open the screen of a remote computer, monitor and even change parameters.
I connected the router to an uninterruptible power supply. The computer works from the adapter, plus it has a battery. The whole bunch should live for six hours without external power, that is, it should be enough for minor problems.
The software allows not only to view the parameters in the moment, but also to write work protocols. I am currently writing a protocol that includes:
- external temperature;
- internal actual temperature;
- boiler water temperature;
- burner mode;
- supply temperature after the mixer at the ECP collector.

All this is written to a file with an interval of 10 seconds. I plan to analyze later to understand what the actual fuel consumption is made up of.

I hope my experience is helpful.

PS I connected an ip-camera to the router, now I also have the opportunity to see what is happening in the house in my absence.