GSM modules to control the operation of barriers

module for controlling gates and barriers using a telephone

GSM module

Module with a SIM card slot for opening gates or barriers using a phone.

When calling to SIM, a signal is sent from the module to open the automatic gate, barrier.

The block is easy to manage and edit the number of users via SMS.

Full editing and control is carried out using a laptop with a USB connection.

power consumption - no more than 2 W;
protection against moisture and dust - IP65;
connection of the unit with a computer via USB;
remembers up to 3000 users in the database;
external GSM antenna on a magnetic mount;
editing of users is possible via sms.

INSTRUCTIONS AND SOFTWARE GSM module DoorHan

DOWNLOAD – DoorHan GSM software. Version 1.2

DOWNLOAD – GSM DoorHan software. Version 2.0

DOWNLOAD – GSM DoorHan software. Version 3.0

VIDEO INSTRUCTIONS: CONNECTING THE GSM MODULE; CONFIGURING THE GSM MODULE DOORHAN

GSM device is compatible with all DoorHan automatic devicesOpens with a smartphone or phone: garage doors, street gates, roller shutters, barriers, chain barriersSketches for working with the GSM moduleSending SMS on the example of SIM900Before sending a message, you need to configure the module. First of all, you need to convert the transmitted message into text format. To do this, there is a command AT+CMGF=1. It is necessary to transfer the encoding to GSM with the command AT + CSCS \u003d "GSM". This encoding is the most convenient, since there characters are represented in ASCII code, which is easily understood by the compiler.Then you need to dial an SMS message. To do this, a command is sent with the subscriber's number AT + CMGS = "+79XXXXXXXXX" r, in response it is proposed to dial an SMS text. You need to send a message. At the end, you need to send the Ctrl + Z combination code, the module will allow sending the text to the addressee. When the message is sent, OK will be returned.The interaction with the module is based on the indexes that are assigned to each new message. By this index, you can specify which of the messages to delete or read.Receiving SMS. To read an SMS message, use the AT + CNMI = 2,2,0,0,0 command. When a text message arrives at the module, it will send to the +CMTI serial port: "SM",2 (in this case, 2 is the serial number of the message). To read it, you need to send the command AT+CMGR=2.Receiving a voice call. First of all, for a conversation, you need to connect a speaker and a microphone to the module. When a call is received, the number from which it was made will be shown. To work, you need to enable the GSM library:#include If the SIM card is blocked, you need to enter its pin code. If a PIN is not required, this field should be left blank.#define PINNUMBER ""In setup(), the initialization of data transfer to the computer must be performed. The next step is to create a local variable to keep track of the network connection status. The sketch will not run until the SIM card is connected to the network.boolean notConnected = true;The gsmAccess.begin() function is used to connect to the network. When a connection is established, the GSM_READY value will be returned.vcs.hangCall(); – a function indicating that the modem is ready to receive calls.getvoiceCallStatus() - Gets the status of the sketch. If someone calls, it returns RECEIVINGCALL. To record the number, you need to use the retrieveCallingNumber() function. When the call is answered, TALKING will be returned. The sketch will then wait for a newline character to terminate the conversation.Establish a GPRS connection and send data to a remote serverFirst you need to install the SoftwareSerial library, which allows you to provide serial information transfer and connect the GSM module and the Arduino microcontroller.To send data to the server, you need to send the following commands:AT+SAPBR=1,1 – Carrier opening.The next three commands are related to setting network connection settings.AT+SAPBR=3,1,\”APN\”,\”internet.mts.ru\” – select mts operator, access point name.AT+SAPBR=3,1,\”USER\”,\” mts \” – user selection mts.AT+SAPBR=3,1,\”PWD\”,\” mts \”AT+SAPBR=1,1 – connection establishment.AT+HTTPINIT - http initialization.AT+HTTPPARA=”URL”, – URL address.AT+HTTPREAD - waiting for a response.AT+HTTPTERM stop http.If everything is done correctly, lines with AT commands will appear in the port monitor. If there is no connection with the modem, it will show one line at a time. If the GPRS connection is successfully established, the LED on the module will start flashing.How to recover PUK codeIf you lose the PUK code of the SIM card, you should contact the Tele2 service center or the customer support service at 611 (calls are free).Submitting an application to the communication salon is carried out in several steps:

You must specify the phone number, full name of the cardholder.

Show original passport.

Explain the reason for the request.

To receive assistance from the operator, you should provide the phone number, full name of the cardholder. To identify a person, a code word or passport data is indicated.Attention! If the PUK code is entered incorrectly 10 times, the SIM card is restored at the company's office

GSM modules to control the operation of barriers

GSM MODULE FOR GATES AND BARRIERS

For remote control of automatic gates, as well as for remote control of barriers, barriers, roller shutters, doors and many other devices using a mobile phone.

ADVANTAGES OF THE GSM CONTROL MODULE
The convenience of using the GSM module to control automation is undeniable. For example, with a regular call from a mobile phone, you can let in or out a taxi, ambulance, courier to the fenced area of your residential complex without leaving your apartment.

EASY INSTALLATION
The simplicity of the GSM-module design allows you to install and configure it yourself. If necessary, our specialists will help you install the control device, as well as train you to work with it.

SUBSCRIBER BASE
The GSM module, depending on the model, supports up to 10,000 subscribers. The control panel for the user is the WEB-interface. Adding and deleting subscribers is carried out through a personal account on the Internet.

REMOTE CONTROL
With the help of a personal account of the WEB interface, you can configure the GSM module, add and remove users without being outside mediocre proximity, from virtually any part of the world.

OPERATING PRINCIPLE STEP 1. The subscriber calls the mobile number of the GSM module
OPERATING PRINCIPLE STEP 2. The GSM module receives a call and searches for the subscriber's number in its database
OPERATING PRINCIPLE STEP 3. If the number is in the memory, then the GSM module resets the call and gives a signal to open
OPERATING PRINCIPLE STEP 4. If the phone number is not in the database, then the GSM control unit simply resets the call and the passage remains closed.

Standardization

Before the start of GSM, at the very beginning of the eighties of the last century, 24 analog networks were operating on European territory. They were not compatible with each other, so the issue of creating a single standard became relevant. The need to solve this problem was the reason for the creation of the GSM group (Group Special Mobile). This group included representatives of 24 European countries. The Mannesmann system was chosen as the digital standard, and this system was introduced in 1991 in Germany.

Today, under the abbreviation GSM, there is already a slightly different phrase - Global System for Mobile. The GSM standard itself or its versions are successfully operating in 80 countries around the world.

Pros and cons of gsm modules

there is no need to purchase individual remote controls, key fobs or cards, and not all barrier control systems are “rubber” and are designed for a limited number of them;
you can open a barrier or gate from any place included in the mobile operator's coverage network, thanks to which it is not a problem to provide a pass for a friend to the territory, being out of reach, + simplifying the work of the security service;
control - using software or SMS commands, it is possible to add and remove numbers from the database, configure parameters such as admission by day of the week, time of day, entry ban in case of non-payment of mandatory fees, keeping a log of entries, etc .;
the ability to install on automatic barriers and gates of any manufacturer;
savings - the price of one gsm controller is approximately equal to the cost of three Came remotes, and with a large number of users, such automation of travel is much more profitable.

And a small fly in the ointment in a barrel of honey - it will be impossible to open a gate or a barrier with a dead phone battery or a zero balance, be it Doorhan or Came three times, but the same thing can happen if you, for example, have forgotten or lost the remote control.

Advantages and disadvantages of the GSM standard

Advantages of the GSM standard:

Smaller dimensions and weight of devices compared to analog standards. At the same time, the operating time without recharging is noticeably longer.
The quality of communication is at a very high level.
Low level of interference at given frequencies.
Eavesdropping protection. Also, due to encryption algorithms, communication is protected from illegal use.
Wide areas of distribution.
Ability to use roaming. Roaming is the ability to move from one network to another without losing your number

Disadvantages of the GSM standard:

Due to digital speech processing, speech may be somewhat distorted.
The distance covered by the network is not too large. It is only 120 kilometers.

Thus, while gsm remains an evolving technology, but, nevertheless, its importance in the world cannot be overestimated. After all, we use it every day.

Articles and Lifehacks

To the question what is gsm module in tablet
, you can answer - this is a global digital standard designed for mobile cellular communications. Today, the gsm module is an additional feature that gives users a unique opportunity to send SMS (short alphanumeric messages) and make calls, i.e. use your tablet like a cell phone. Indeed, for many it is a problem, for example, and it is out of order - in this case, a tablet with a GSM module will allow you to stay in touch.

Features of a tablet equipped with a gsm module

The main characteristics of the tablet: power, autonomy and portability. The power of a tablet with a gsm module is sufficient both for working with e-mail and office applications, and for relaxing while traveling and having fun (watching videos and photos, as well as playing games). A tablet is a miniature portable computer connected to the World Wide Web, which makes it easy and simple to exchange necessary information with friends and colleagues. It allows you to perform office work without connecting to a power source, working in gsm networks.

An important feature of such tablets is the presence of a built-in module that allows you to receive calls. Such a device (simple and safe to operate) has high performance, and performs all tasks assigned to it quickly and accurately. The advantages of the tablet include its compact size and light weight. It is also worth having an idea while working with it. We figured out what a gsm module is in a tablet and what its purpose is. Consider the stages of its appearance.

The history of the gsm module built into the tablet

Analogue mobile communication systems were rapidly developed in European countries (Scandinavia, Great Britain and Germany) in the early eighties. Each state developed an individual system that was incompatible with others in terms of functions and equipment. However, this situation limited the scope of mobile devices (worked within one country), which did not allow expanding sales markets. In Europe, it was decided to create a common terrestrial cellular communication system. By the mid-90s, about 200 gsm networks existed in 110 countries of the world, and today they operate on almost all continents.

This device provides a large number of services related to the transmission of information. Thanks to the gsm module, the transmitted speech is digitized and transmitted as a digital stream over the gsm network. Users of these networks receive and transmit data to users of traditional telephone networks.Since gsm is a digital network, a modem is not required for the user to interact with the network.

GSM module for control of automatic gates and barriers

Almost any equipment equipped with electric drives can be controlled remotely. This can be done by the gsm-module for controlling the automation of gates and barriers. Modern technical capabilities and the widespread development of mobile communications have made it possible to use control modules, even without increasing the cost of this connection.

The module is purchased separately and used together with a gate drive or barriers. The electronics of the device is reliably protected from possible external influences, as it can be used in the body of gate structures or barriers or mounted in other places. The device package contains the module itself, a cable for a USB connection with computer equipment, and professional software.

Operation is allowed at temperatures from -20 to +40 degrees (but the range may vary depending on the individual technical characteristics of the model).

Description of the principles of operation of gsm modules

Structurally, the control module looks like a receiver that receives and transmits signals in the GSM range. For its correct operation, a SIM card of a mobile operator is required, and the numbers of those subscribers who have the right to access the fenced area are stored in the memory. Standard models allow you to store 500 users in memory, which is quite enough even for large enterprises with high traffic.

When a call is made to the control panel by a client, the system automatically checks its presence in the memory. In this case, a mobile connection is not established, which allows subscribers not to increase their communication costs. If the checked number is found by the system in the database, then it sends a corresponding signal to the gate or barrier drive. As a result, the design opens the way for a verified user. Closing occurs automatically: the system sets a certain period allotted for the user to travel, after which the automation is triggered.

If the number of the verified subscriber is not found in the list, then the gate and the barrier will not open. The call will be dropped and the system will not respond in any way.

There are no particular difficulties when choosing and buying GSM modules, since almost all of them are adapted as precisely as possible for installation on any structure. At the same time, the gate or the barrier can be opened from any distance to which the GSM signal is distributed.

Benefits of Using - Modules

Installing these devices makes it possible to refuse personal cards, chips, key fobs, remotes. In addition, the use of gsm-modules greatly simplifies the performance of security functions: a pass to a fenced area can be provided even at a certain distance.

The device is easily configured, thanks to which it is distinguished by high functionality and ease of use. Numbers can be deleted from memory or added within the allowed number. Some modern manufacturers also offer modules with the ability to configure and restrict access to certain hours, days, as well as in case of non-payment of the rental amount for a parking space, as well as in other cases.

Equipping the structures of gates and barriers with modern gsm modules allows you to keep logs of visits and departures from the territory. With a sufficiently large flow of road transport, such management is much more convenient and functional.

In terms of financial savings, the cost of one gsm controller is roughly comparable to the cost of three remote controls.If the system is used by a large number of subscribers, then automation through modules is much more profitable and economically justified. To control the module, you can use a mobile operator's SIM card, which can only be configured to receive incoming calls. This eliminates the need to pay regular subscription fees for using communications.

INSTALLATION OF GSM ALARM

GSM alarm installation includes:

installation of the module, sensors and power supplies;
laying connecting lines (for wired alarms);
installation and connection of additional equipment;
configuration and commissioning of the system.

The main functional devices of the GSM security alarm are a communication terminal with a slot for a SIM card and a receiving and control device. As a rule, they are placed in the same building, so their main task is to protect them.

It is desirable to install them in a vandal-resistant box and / or place them in a hard-to-reach place. This is done in order to make it difficult to access them, including during unguarded time.

Grouping alarm sensors into loops (security zones) should be based on their functional purpose. For instance:

Entrance door;
perimeter security;
control of the internal volume of premises (motion sensors).

Light and sound alarms can also be connected to the outputs of the device.

When installing a GSM alarm system at a remote site, special attention is paid to the quality of the power supply integrated into the system. The UPS must be equipped with a rechargeable battery that will ensure the operation of the entire system for a period of at least 24 hours.

The power supply itself must be protected against deep battery discharge, short circuits and overloads.

It is desirable that the device has an external LED indication, which can be taken out of the security facility.

This is especially important if arming and disarming is carried out from an external panel. External control modules.

External control modules.

In addition to the control panel on the control panel, which is used for administration, the system must have an external panel for arming and disarming the object. There are several types of such control devices:

Disguised button.

One of the simplest and cheapest control options, but also the most unreliable. Attackers can visually monitor the owner's actions to control the alarm system.

Electronic keys Touch Memory.

More expensive and reliable way to control. However, it is also not without flaws. Physical media can be lost, stolen, or copied by temporarily borrowed devices.

RFID is a chip.

RFID chips are small and can carry information about the electronic key to activate the alarm system. It is a contactless device, readers will be able to get all the necessary information at a distance. Therefore, RFID chips can be installed in the most unexpected places:

jacket lapels;
watch strap;
belt buckle, etc.

Numeric panel for dialing codes.

It is better to use this method when installing indoors, since when typing the code, there should not be strangers nearby who can remember the entered combination. It has been rarely used lately.

How GSM works

In order to carry out this type of communication in a certain territory, the following actions are applied:

Installation of receiving-transmitting stations of stationary type. Each of the stations operates in relatively small areas of several kilometers.
Stations are arranged in such a way as to overlap each other. This makes it possible for the subscriber's signal to move from one zone to another, and the connection will not be broken.

To implement this type of communication, in practice, neighboring stations are tuned to different frequencies.There are usually about three such frequencies. Using three different frequencies, stations arranged in a triangular pattern overlapped service areas.

There is also a fourth station that can use one of the frequencies again. This is possible because it borders on two zones. Thus, the coverage area of the station will resemble a hexagon, having the appearance of a honeycomb.

How the module works

In essence, a GSM module is a radio receiver with an installed sim card of any mobile operator and a controller for processing incoming and outgoing information. The module database contains the phone numbers of all users who have the right to access the closed area. Modern models support recording and storing up to 2000 numbers, more expensive modifications can process up to 10,000 numbers.

The principle of operation of the device is shown in the figure.

Schematic diagram of the device

When making a call, the controller checks the incoming number with the recorded data, and if it is in the memory, a command is given to open and actuate the barrier and sliding gate drive. If there is no number in the list, then the device simply hangs up the call without doing anything else. Similarly, the controller opens swing gates equipped with an electric lock and a Doorhan or Came drive.

There is no connection with the caller, or it is disconnected after a few seconds, so that the cost of paying for cellular services is zero. If the data does not match, then the pass through the enclosing device is not provided. In some models, it is possible to disable identification, and the pass is carried out with any incoming call to the controller. The GSM module control unit is configured using SMS commands, a web interface, a program on a computer connected via a USB port, and an android application for smartphones.

Let's give an example of a gsm-module from Tor-House LLC. There are two models that differ in the number of user numbers and the set of functions. Photo modules in the figure below.

The technical characteristics of the modules are given in the table.

Characteristic	Model TH-G01	Model TH-G02
Power supply, V	=12 or 24 V	=9 ... 24V
Frequency, MHz	Bands 850/900/1800	Bands 850/900/1800
SIM card	Standard 1.8/3V	Standard 1.8/3V
Antenna		50 Q SMA, connection of an external antenna with SMA connector is possible
Relay	1, dry contact NO/NC	2, dry contact NO/NC
Number of users	99	3002
User registration	SMS	SMS or call
Temperature range	-30 … +60	-30 … +60

Disable pin code on iPhone

In the window that opens, there is a SIM-PIN line at the end of the list. When activated, you go to the PIN code management menu. Here you can deactivate the pin code or replace it.

To disable it, set the button to the status "0", specify the PIN code. If it is lost, you will need to enter the PUK code.

To change the PIN code, use the "Change" button. The active PIN code and the new password are entered twice. Replacement can be done an unlimited number of times. However, on the third wrong attempt to enter the PIN code, the number will be blocked and a PUK code will be required.

For its introduction, 10 samples are taken. On the 11th attempt, the final blocking of the card will occur, subject to disposal due to the lack of the possibility of further use.