CCTV COMPONENTS YOU DON´T FORGET

componentes sistema CCTV components

To discover the components of surveillance system is a confusing, but necessary, issue. To know all their characteristics, functions and possibilities is something essencial to get our goal: increase the security.

En este artículo nos detendremos en alguno de los elementos del sistema CCTV para ver sus prestaciones y las diferentes opciones existentes. Una pequeña guía para entender si un presupuesto se adapta a nuestras necesidades o no.

In this article we´ll see some elements of CCTV system to know their feautres, and different options. A little guide to  understand if a quotations is adapted to our needs or not.

 YOUR CCTV CAMERA

Cameras are one the components visiblest of a CCTV system. The technologic evolutions has been so fast, so now we could find endless options. We are going to show the feautes you have to keep in mind when we look for our camera:

  • Power supplying: we could find cameras that work to 200VCA, 24VAC or 12VCC. We have to be care of this info to don´t have a mistake.
  • Sensor kind: we have to know about CCD sensor, catch white/black signs, and CMOS that catch white, black and infrarred signs.
  • Resolution: it calculates the quality of  the details are watching, it means, the image definition. The standard resolution of a CCTV camera is 420TVL (TV lines) it´s above the average of cameras.
  • Film Speed: it informs about the minium light we need to get a video sign. It measures by LUX. We have to think where we fix the camara and what we want to record to choose a goof film speed.
  • Lents: to know wich lent is perfect us, we have to know the distance between camera and place recorded, and the light of the area. We could distinguish:
    • Fixed iris: to cameras located outside where light is stable.
    • Manual variable iris: to cameras located inside where the light could change.
    • Autoiris: it´s perfect to cameras located outside, where they auto- adjust to get always a good quality, ilumination doen´t care.
    • Fixed lents: we choose them when we know perfectly that this lent is correct. After that, it couldn´t be changed.
    • Varifocales: cuando el campo de visión es inseguro y debemos colocar primero el sistema para definirlo, recurriremos a las cámaras varifocales. Éstas permiten modificaciones posteriores.
    • Varifocal lents: when the recorded area isn´t clear, first we have to installa a system to define it, that we´ll get varifocal cameras. They allow to do following changes.
    • Zoom: Perfect cameras when we need to take close and far images alternately.

VIEW OF IMAGES

Otro de los componentes esenciales en el sistema de CCTV son los monitores.  Sin tener tantas opciones como en las cámaras, hay varios elementos que debemos tener en cuenta. La división básica que nos encontramos son:

Other important components of CCTV system are the sreens. There aren´t many options like cameras, but there are some element that we have to keep in mind. Basic divison is:

  • Black and white: this sreen give us a better resolution.
  • Colour: with this screen we´ll watch the things better.

If we need to watch  a lot of details, we´ll need a great resolution, that we´ll select a black/white screen. But if we want to identify things and/or people, we´ll get a colour screen.

Sreen size is a element to keep in mind. Measuring is made by inches and we keep in mind the screen diagonal. The sizes most used are the 9″ (23cm) and 12″(31). Also there are smaller screen, 5″ and 7″, to watching systems.

We could watch some cameras in the same screen if we use QUAD compressor and multiplexor. This technology digitalises the imagen and after that, each imagen is compressed in each existing quadrant. The sign is synchronised and we could watch at the same time, 4 different cameras.

IMAGE TRANSMISSION

CCTV system has different components conected each other. It doesn´t mean that all wires are correct, anywhere is good to put wires, or you need wires in your installation.

So, transmission could be done by:

  • Coaxial wire: this cable avoids elctromagnetic interferences beyond 50kHz. If we use this wire, it has to be fixed, minimum, 30cm apart others. Interference is showed with horizontal lines that cross the screen from the end of it until its top.
  • UTP wire: it used to installations where the distance beteween components is 200 meters and more. A wire could connect until 4 cameras. If we use it with system where needs 70 meter of wiring, we´ll reduce the cost of instalaltion.
  • Wireless link:  this system allow a good transmisson along 100 and 800 meters. Usual frecunecy is 1Ghz and 10GHz. Although a 6Mhz or 7Mhz is enough to get a good quality.

RECORDING EQUIPMENT

We have two big groups of recording equipment:

  • Analogue: although we have a system that records digitally, we´ll have an analogue system if the image transmission is made by wire.
  • Digital: we could watch the images from anywhere and don´t need to wire a screens network.

If we add some components like multiplexo, we could see until 32 cameras in the same screen. Everythin at the same time.

ESSENTIAL FEATURES

These are the  essential faeatures you have to keep in mind when you go to choose the CCTV components:

  • How many cameras you system accepts?
  • How many images per second could the system record?
  • Storage capacity.
  • What is the input to audio recording?
  • Movement detection.
  • Recording by date, day and hour.
  • Alarm input.
  • Images sizes: 160x120px, 320x240px, 640x480px.
  • Types and number of output
  • Remote connection by networr: web browser or client software.
  •  Recording speed options.

DATA PROTECTION GUIDE

guía protección datos personales

This guide wants to help you to understand the present law Reglamento Europeo y del Consejo de 27 de Abril del 2016 2016/679. So, we´re going to show the citizens rights about protection datas in EU. This information considers the rights form the law Ley Orgánica 3/2018 of 5th December of2018, too.

DEVELOPMENT AND PRESENT SITUATION

Some years ago, before masive use of Internet and computing,  information was stored by company, like personal data, was limited. Files was composed by address, ID number, marital status and telephone number.

Step by step, administration and private companies added more and more information to their files, datas like: bank details, credit card details, email, health information and life styles.

Last years, incorportation of datas to this kind of files has been masive. New tools to process these datas and new technologies have been a truly revolution in our society. Many times we give more information that it´s required. Then, they could know all of our insterests, family situation, work situations… So, it has been necessary to develop a new European Regulation to limit this activity. Especially to fix civil and penal responsabilities.

ADAPTATION AND SAFE HARBOR

Development of new technologies has done necessary to update the European Regulation 46/1995 of 24/11/1995, with a new Regulation and a lay Ley Orgánica 3/2015 of 5th December to Data Protection.

These new limitations weren´t well accepted by some USA companies, that wanted the autocontrol about data protection.  Some of them like Facebook, Google or Apple never felt good with kind of limitations. In spite of this, they offered their services to UE members.

To avoid this control, they joined under SAFE HARBOR agreement. It meant that the comany received  a “presumption of adapation”  to avoid the limits of European Regulation.

Fortunately, the EU Court, 6th October of 2015, found SAFE HARBOR invalid, then the companies had to get a protection of users rights and to adapt their service to new regulation.

PURPOSE OF EUROPEAN REGULATION AND SPANISH LAW

The purpose of Regulation  46/1995 of 24/11/1995, the European Purpose and Conceil of 27th April of 2016 and Spanish Law 3/2018 del 5th December of 2018 is:

  •  To protect personal datas.
  • To protect the human rights.
  • To control the information about personal data.

The laws are created beacuse the companies store too much information. These laws come late, but the speed of technologies does complicate to forsee to situations.

EU members have new laws to protect and to make companies inform previously about the datas that they store. Also the laws make companies use properly the information, respect the law and keep safe  the files that they manage.

The file managers have to give clear information, before and after to collect personal datas. Also they have to inform if the infomation takes a risk.

SPECIAL SITUATIONS

Kids have a special protection. This treatment is legal when the agreement is given by the legal guardian. The agreement has to be clear by the legal guardian.

Some personal datas always must be prohibited to proccess. We are talking about ethnic details, politics, religious, sexual or genetic details. It could be an exception when there is a explicit agreement to:

  • To have a affiliation to some services.
  • To protect vital people´s interests.

Special attention has the medical datas that are necessary to evaluate the work capacity, medical diagnosis, etc. Workers know the results of medical test , but the company couldn´t access to them. The only result shall be known if the worker could develop correctly his work or not.

People have to know:

  • Who is the file´s owner.
  • Which datas are stored.
  • Which is the file purpose.
  • Which are the possible recipients.
  • How long are the data going to be sotered

If the datas are collected without the authorizations of people, they could carry out their rigjts to know where the datas come from.

The interested person has always the right to change the imprecise datas, and to supress them.

CONTROL AUTHORITY

It has been necessary to create, in Spain, a control authority: AGENCIA DE PROTECCIÓN DE DATOS ESPAÑOLA. The agency watchs over the respect and compliance of those laws. To be sure about this compliance, it has been necesassry to create some penalise laws.

Companies have to define who are the file responsibles and whis is their liability.

The Regulations sets 3 different levels to sort  the infractions: mild, serious, so serious. Pescription deadlines are:

  • 3 years to “So Serious” penalties.
  • 2 year to “Serious” penalties.
  • 1 year to “Mild” penalties.

The files responsible have to keep safe all the registered datas. Law unfulfilment has a penalty until 20.000.000 € or 4% of  invoicing.

Big companies has been setenced with millionaire penalties beause they did bad use of information. Also, small companies are sentenced beacuse they send emails to clients and breaking thery rignts, as you could check in this link.

FORGET RIGHT.

Newness of this law is the forget right.  Citizens could require to delete the obsolete or inexact information, even though it was true. It´s never be something easy. Sometimes, it usally prevails the right information above the personal rights, especailly if we talk about famous and public person.

Also, we could order the forget right when the datas have been collect by illict ways or without authorization.

PERSONAL DATAS IN A COMPANY.

Overall, companies could collect the required datas to develop their activity. The could do it if the worker privacy is not invaded.

First hot point is to collect images from work areas or work vehicles.  Usually, this practice is allowed if the cameras respect the Agencia de Protección de Datos´s rules. Recordings have to be justified and and don´t invade the workers privacy. These recordings don´t catch sounds and the cameras couldn´t be installed in toilets or relaxing areas.

In these moments, geolocations are very important to the company. Devices intalled in work vehicles could collecy movement information. It´s logical if  these datas are necessary to develop activities. Devices never could catch sounds.

Cameras installation or geolocations device have to be notified previously. It is illegal to have hidden sytem without previous information.

SECURITY AND SURVEILLANCE CAMERAS.

Agencia Española de Protección de Datos has an easy and practical guide to inform about all you need to install security cameras. You could take a look this link.

With the new regulations, you don´t have to register the installation at the Agencia Española de Protección de Datos. It has been replace for a file with the resposible and activities details. It has to be aviable to autorities required.

The security cameras have to be indicated on the entrances. Then, affeted people always know tthat there are cameras working and they look the informative pannel. This pannel has to inform about responsible´s file details.

Storage of these images musn´t exceed 30 days,  except images collect from Police and they are neccesary to investigations.

If there are people want to access the installation, the responsible has to make a record of the person that wants to access and a photo of him. The responsible never gives access to images form other persons.

Some companies or public departments have to be obliged to install a surveillance system. For example, electric or water supply companies, bank sector, jewellery shops or security companies.  They have to obey the sector regulations.

Communities could install security cameras in private areas. They have to limit the records to accesa areas, public streets. This images couldn´t be watched on communal channels.

COMMON FAILURES ON YOUR CCTV SYSTEM

Averías frecuentes CCTV

When you need to display images form a security camera, sometimes and often you couldn´t do it. Security cameras to surveillance or access control need a maintenance to dicrease the risk and failures. We´re going to show you the common failures that we use to find.

ELECTRIC SUPPLY FAIL

fallo eléctrico

Cameras and recordings need a electric supply. If the supply system fails, it couldn´t store the images.

Our suggestion is that you install a SAI ( Ininterrupted Supply System) that gives electricity to recording when there is a electric failure. Also you will get to keep safe the electronic devices.

 HARD DISK DAMAGES

Hard Disk  stores the images, it´s call  HDD (Hard Disk Drive) and ithas a limit capacity. When it´s full, the images are rewriten wih the new récords.disco duro averidado The number of rewritings is variable and as you know, everything has a lifetime. So sometimes the system is connected, cameras could be displayed but they aren´t been recording in the hard disk.

FAILED SECURITY CAMERAS AND DIRTY LENS

Recording takes images from different installedcameras. It processes and stores them during programmed time.cámara lente sucia Sometime the problem could be caused because the camera hasn´t electric supply or the energy power is damaged.

Sometimes you could find dirty or unfocused lens. It happens when cameras are localed on outside areas. You have to check and clean frecuently the lens to get always a good quality images.

DAMAGED WIRING

It´s usual that security cameras are connected to recordings by a 5/6 wire or UTP wire. These wires could be installed inside a pipe and to cross cable deterioradothough union box. Humidity could damage, passing of time, the material of wiring.

Also, it´s usual that rodents brake the wiring and they leave the recording without connection . 

DAMAGED POWER SUPPLY

Security cameras are supplied by low voltage. It means that we need a littlefuente alimentación averiada trasnformer between the outside power supply and our device. Sometime, the problem comes from this transformer, like everything it has a lifetime too.

For all these reasons we suggest to do a regular and programmed maintenace of your CCTV systems. If yoy don´t do it, maybe when you´ll need to get some images,  your equipment shall not to be recording.

LITTLE GUIDE ABOUT SURVEILLANCE CAMERAS

cámara de videovigilancia security cameras

It is difficult to have a video surveillance system well adapted to our needs. This sector has a large range of posibilities, so we could choose since a simple camera until  tricky installations with domotic devices.

Let´s go to see cameras, a device with a lot of posibilities and versions. What kind of cameras are there? What have we to know about them?… Today, we´re going to explain averything.

DEMARCATE YOUT OPTIONS

We could be lost inside the ocean of different models, so we have to be clear with the use of cameras.

To start the selection and dismiss models, we could think about the angle view that we´ll need. Then, we´ll know if we have to looking for big angle cameras, 360º, etc.

If we need something more sofisticated, we could find cameras that detect movements, or night view cameras.

Always you have to bear in mind cameras have to be configured, so if you get ones with easy setting, it´s avoid you to contact with qualified people to work them.

CAMERAS LISTING

We´ll show you a cameras listing that you could find:

  • Inside Cameras: They are cheapest and easiest models that you´ll find.
  • Movement or Zoom Cameras: these are the best cameras if you want to control large areas.
  • Night View Cameras: they use a led system to get a good quality. These devices are so expensive.
  • Hiding Cameras: we are talking about integrated cameras inside different objets. They are used to police investigations and they are usefull to that.
  • IP Cameras: they are the most popular model at the moment. They could send images by Internet.
  • Tamper-proof Cameras: they have fixed cover mades by a strong material.
  • WIFI/Wireless Cameras: say goodbye to complex system and meters of wiring. These cameras work by batteries and don´t need power supplier.
  • Outside Cameras: they seem a tamper-proof camera but their are made to hold out bad weather.

Other listing is about the location. Then, we´ll have:

  • Cube Cameras: to outside areas.
  • Box Cameras: to inside areas.
  • Bullet Cameras: they are perfect to outside areas.
  • Domo Cameras: they are ready to outisde and inside areas as well.

PLACING SUGESSTIONS

There are some elements to bear in mind when we´ll fix our new cameras:

  • We have to find a visible place, then we´ll get a deterrent effect to thieves.
  • A great place to fix the cameras is the access ways. We have to be care that cameras don´t take image of private areas.
  • Perfect height is around 2.5m, we´ll get a great angle to have a good view and control.

CAMERAS ADVANTAGES

A videosurveillance system could give you great advantages:

  • Since psychological view, a CCTV system could give you an extra calm and you´ll feel safier. It´s a derrent element.
  • We could control everything. The cameras record every moment 24/7.
  • To get a surveillance system doen´t mean that you have to pay a lot of money.  You´ll find a differents prices, since a simple installation until complex with domotic devices.
  • Images recorded give us aditional information to help with community problems.

CAMERA AS KIT DEVICE

Probably, when you ´re goin to get a camera, you could buy a complete CCTV kit.  It´s a great option, that you´ll find everyting to have and manage a surveillance system. There are some elements you will bear in mind:

  • Recorder: it informs about number of channels, cameras that system shall have.
  • Connectivity: today the WIFI CCTV is the best option.
  • Image Quality: we suggest to get a HD camera to 1080 px.
  • Hard Disk : to save the images, 1TB is enought to 8 channels instalation.

We hope to clear your mind and help you to get a good decision.

HOW YOU APPLY DATA PROTECTION ON CCTV INSTALLATION

protección de datos en cctv

With the new Data Protection Regulation, last 25th May of 2018, the surveillance sector has changed some elements. We have to be clear with our steps to comply with the law, when we are installing the CCTV system and with the recorder images from it.

This new regulation is loooking for to be adapted to Regulation (UE) 2016/679 European Parlament and Council of 27th April 2016, about the protection of personal datas and free flow of them

In this article we´ll see how the surveillance sector is affected by new Data Protection Regulation.

BYE BYE NOTIFICATIONS

Since year, when we installed CCTV system we had to inform to Agencia Española de Protección de DAtos. NOTA system, did remember? guided us to fullfil the form and after that we sent to AEPD.

Now, with new Data Protection Regulation, you don´t need this notification. Only you have to fullfil an internal document. It´s explained in 30th article of the new regulation.

30th ARTICLE

Each responsible person, or agent, takes note of the activities done by his responsability. This register shall have the next information:

  • The name and contact deails of responsible, co-responsible, the agent and data protection delegate.
  • The purpose of the system.
  • The categories description of interested, personal datas of categories, the recipients data, third countries and international organizations too.
  • In case of datas transfer to a third country and international organization, we have to inform about that country and/or organization and the documentation (49th article, 1st section, 2nd paragraph)
  • Preview perdiods to delete the data categories, when it could be possible.
  • Description of security measures (32nd article, 1st section) when it could be possible.

The register shall have:

  • The name and contact deails of responsible, co-responsible, the agent and data protection delegate.
  • Las categorías de tratamientos efectuados por cuenta de cada responsable. 
  • The type of processing made  by each responsible.
  • En el caso de trasferencia de datos a un tercer país u organización internacional, se ha de identificar dicho país y/u organización junto con la documentación de garantías adecuadas (recogido en el Artículo 49, apartado 1º, párrafo 2º)
  • Description of security measures (32nd article, 1st section) when it could be possible.

Above information has to be on paper and electronic format. Also, the responsibles have to make aviable to Authority.

Everything, looking until now, isn´t obligatory to companies with less than 250 employees. Unless it is a risk to freedoms and rights of them.

HOW TO APPLY THE NEW REGULATION TO SURVEILLANCE SYSTEMS

We´re going to stand out the aspects of new regulation that affect to surveillance installation:

  • Cameras location: recorder imagenes have to respect the relax and private areas.
  • Screens location: screens have to be located inside limited area.
  • Saved images: the images will be saved for a month.
  • Duty to inform: we have to inform about the CCTV installaton by a informative poster. This element is composed by a pictogram and text where inform how you could access to replace your data.
  • Schedule control: we have to inform the employees if the cameras are used to control entrances and exits.
  • Right to access to images: you could order it with a ID copy, date and hour that you want to see. The images don´t be showed directly to others. If they couldn´t be watched, we have to give a document with this information.

Here you are a link with a guide form AEPD to help you to supplement the information.

 

DATA PROTECTION AND SURVEILLANCE LAW

data protection law

We have many questions about the new protection data´s law when you want to install a surveillance camera. We´re going to give you some information about it and helps to avoid future problems.

Protection and security is a priority goal to private areas, but we couldn´t do everything we want to get it.

Since Omnibus Law (Ley 25/2009) where it´s not necessary a especialised company to install surveillance system, we find a lot of installations that break the law.

IMAGES FOR SECURITY

Surveillance system wants to guarantee the people and facilities security. So, the public interest legalises the treatment of personal images.

The RGPD law, in 5th article, says that personal images and datas are taking to the certain goal and not others. This is calling “datas minimisation”, we could get datas but just the necessary datas to keep to security guarantee.

PUBLIC AREA

New Data Protection Law says that it´s not allowed to get images from public areas.

Just they could be taken if they are indispensable to get the installation´s goal or there aren´t options to change their location.

RESPONSIBLES

RGPD law says that we must to select a Protection Data Responsible who have to develop a proactive attitude. Now, it isn´t necessary to register the installation into Agencia Española de Protección de Datos; but the resposible has to keep a Activities Register. It could be on paper or digital forma, but always it has next information:

Owner of system Name and data contact of responsible
Activity Surveillance
Regultation Art. 6,1e del RGPD
Goal of images To guarantee of personal security, things and facilities
Responsible Email
Personal data categories Images
Categories of victim For explample, clients, workers…
Information about technical measures of security Information about them
Recipient of communcations, international coorps, third countries included. Security Corps, Courts and Tribunals
 International transfers. Guarantee documentations in case 49.1 Doesn´t exist
When it would be possible, steps to delete the different datas. After a month, except communication of Security Corps, Courts and/or Tribunals.

Remember that this internal document has to be at Control Autority disposal.

SURVEILLANCE AREA

When we install a surveillance system, we have to fulfil with information right. This is objectified by a panel localed in a visible place.

This panel gets this information:

  • Surveillance area
  • Responsible
  • Posibility to exercise the rights in art 15 and art. 22 of RGPD.
  • Where we could get more information about personal data.
  •  All necessary information

You could download the panel here.

PRESERVATION OF IMAGES

The new RGPD law has deleted the 1/2006 regulation. Just the art. 6 still goes on. This article inform that the presevation of images, inside the recorder, is 1 month.

COMMUNITIES

The communities are the owners and resposible of surveillance system installed inside them. They have to take care about obligations of new regulation.

The cameras only could record the common areas of community. They could´t record the public areas, except then entrances and exists. It isnt´t allowed to record private house or fileds.

Responsible persons will have special considerations:

  •  Intallation of informative pannels around the surveillance area.
  •  The access to images is limited to designed person from the community.
  • The authorised person could access to images by a Internet connection using a login/password.
  • All information will be aviable at recpetion, advices pannels, consierge…
  •  It could be installed cameras at pools and spa to security and healthy guarantee, if the cameras focus public areas and not the locker room and bathrooms.

If we talk about parking area, as private area in a common space, your cameras only could focus your place. You could focus outside your area with previous authorisation.

SITUATIONS WHERE LAY ISN´T APLLIED

The RGPD regulation isn´t  applied when the images exceed the domestic and private use. So, there aren´t out the images that are known by uncertain group of people.

For example, if a company join in RRSS isn´t exempt and the lay would be applied. Also, it would be applied if the images hurt the rights of people.

HOW COULD YOU PLAN YOUR CCTV INSTALLATION

surveillance project

If we want to install a surveillance system, in a private house or community, we should be clear about some aspects. How many cameras will we need? What is our budget to get it? We´ll have a lot of doubts about our installation.

Powermatic gives you a list of some points that you have to be clear to get an adparted surveillance system to your needs.

PROJECT FOCUS

Before we go out to get the best price, it´s necessary to control some datas and aspects. For explame, the perimeter that we´ll need to cover with our surveillance system. It shall determine the numer of cameras and meters of wiring we´ll need.

CAMERAS LOCATION

To get a perfect view from cameras, the location shall be the key. We recommend you to visit the place where we´ll install the CCTV, to look for the best place to set the cameras. We could value if there are element to block the views,  the blid spots, etc. So, we could value the areas light and we could select the correct camera model.

INFRASTRUCTURE

We have to be clear with the infrastucture we have. For example, if we´ll go to install a CCTV with IP, we´ll need a Ethernet network. So, we´ll have to know if we have this network and its conditions. We´ll have some doubts like, are there free ports? could the cameras be charged? etc.

MANAGEMENT

When we finish our installation, we´ll have to define its management. Who, from where… Doubts that will be solve to get a great screem platform.

MONITORING CENTER

We have to be sure that servers aren´t be share and they are being working 24h. Also,we recommend you to have system that still working when a electric failure happens.

LABOUR

Always we recommend to contact with qualified technicians to this kind of installation. Join with a qualified team give you a guarantee of good results.

GUARANTEE

If you get a pre – emptive and regular maintenance, you could extend the good life of your installation.

If you follow these 7 steps you´ll have a clear idea of your needs!

WHAT DO YOU HAVE TO KNOW ABOUT SURVEILLANCE CAMERAS

surveillance cameras

The increase of CCTV installation  is growing last years ago. It means that you´ll find changes and innovations everyday. With this article we want to help you to be clear some details about different cameras and recorders.

Now, there are some common CCTV technologies to all manufactures. There are 3 main categories:

ANALOGUE CAMERAS

It´s 1st generation cameras. They allow a very limit resolutions and features. The resolutions is by lanes. Cameras are conected to recorders by coaxial wire, RG59 model. This wire gives a good quality of signal until 150 meters and each camera needs a wire to be conneted to recorder. If we have to do a pixel conversion, the quality is 0,4 Mpx.

After, it started a new way to transmit the signal by UTP CAT5 or CAT6 wire. Its a common wire to connect computers to networks. It allowd a signal froma 300 meters until 1000 meters.

Now, this technology is desapearing. The last advantage is the cheaper prices. The probme is a limit quality and it couldn´t be adappated to news technologies.

AHD CAMERAS (Analogic High Definition)

Although these cameras are analogue, they could get more quality than others, by a coaxial or UPC wire. The resolution gets 5 Mpx. It´s leading some basic digital cameras.

The main advantage is the very good relationship between quality and price. The problem is there are cameras with more resolutions and digital cameras with more features than these.

resolución cámaras de vigilancia

IP CAMERAS (Internet Protocol)

Now, IP cameras have a great future. A basic digital camera has a HD quality (High Definition) with a resolution of 11280 x 720 px, but you could find cameras with 5Mpx, too.

It´s easy to find a great range of products and different prices. There are IP cameras by 40€ and other by 5.000€ with unbelievable features like: read license plate, identificate vehicles, people…

There aren´t miracles, the cheapest cameras has a low quality and expensive cameras have best quality and features. Today, you coul get a paniramic IP cameras of 12Mpx, 20Mpx until 40Mpx, with a resolution of 2592 x 1944 px.

 

Quality Width x Height Total pixels
Analogues. CIF 352X240 84,480
2CIF 704X240 168,960
4CIF 704X480 337,920
D1 720X480 345,600
Digitals. VGA 640X480 307,200
720P HDTV 1280X720 921,600
1,3 MP 1280X1024 1,310,720
2 MP 1600X1200 1,920,000
1080P HDTV 1920X1080 2,073,600
3,1 MP 2048X1536 3,145,728
5 MP 2592X1944 5,038,848

RECORDERS, DVR AND NVR

The options of recorder are wide and varied. You could find analogue recorders that are desapearing, hybrid recoders that mix analogue and digital cameras, and digital recorders well-known as DVR (Digital Video Recorder) or NVR (Network Video Recorder).

The most important thing, before to choose our camera is to have a good evalutation of our installation. It´s common to find cameras with a higher quality that recorder allows.  You don´t need a camera with 5Mpx of quality if the recorder safe images with a reduce quality.

SCREENS AND MONITORS

Last device of a CCTV installation is the screens where you´ll watch the images. Recorders offers different ways to be connected to cameras. It´s not the same if you watch them by Internet, where we need a great conection to watch them by smartphone or if you watch them in situ connecting the monitor to recorder.

A great combination of high quality camera, recorder and monitor is VERY IMPORTANT to get sucessfull with your CCTV system. If you have ahight quality camera but a monitor with low resolutions, you could get the best of your cameras and recorder.

 

LA NORMATIVA SOBRE VIDEOVIGILANCIA Y CCTV

En este artículo, hacemos un resumen de las consideraciones a la hora de tener instalado un sistema de videovigilancia o CCTV, con o sin grabación para España.

NORMATIVA GENERAL SOBRE VIDEOVIGILANCIA

Instrucción 1/ 2006, de 8 de noviembre de 2006, para la captación y el tratamiento de imágenes mediante Videovigilancia. Destacan las siguientes:

normativa sistema videovigilancia y cctv

Los responsables que cuenten con sistemas de videovigilancia deberán cumplir con el deber de información previsto en la LOPD. A tal fin deberán colocar, en las zonas videovigiladas, al menos un distintivo informativo ubicado en lugar suficientemente visible, tanto en espacios abiertos como cerrados. El distintivo tiene que ser como el que mostramos en la imagen. Tiene que estar en un lugar visible y cumplimentado correctamente.

Sólo se considerará admisible la instalación de cámaras o videocámaras cuando la finalidad de vigilancia no pueda obtenerse mediante otros medios que, sin exigir esfuerzos desproporcionados, resulten menos intrusivos para la intimidad de las personas y para su derecho a la protección de datos de carácter personal.

Las cámaras y videocámaras instaladas en espacios privados no podrán obtener imágenes de espacios públicos. Salvo que resulte imprescindible para la finalidad de vigilancia que se pretende, o resulte imposible evitarlo por razón de la ubicación de aquéllas.

Las imágenes sólo serán tratadas cuando sean adecuadas, pertinentes y no excesivas en relación con el ámbito y las finalidades determinadas, legítimas y explícitas, que hayan justificado la instalación de las cámaras o videocámaras.

SISTEMAS CON GRABACIÓN DE VÍDEO PARA VIDEOVIGILANCIA

Es obligatorio homologar en la Agencia Española de Protección de Datos todas las instalaciones con grabación de vigilancia según la LOPD.

La empresa o comercio que tiene instalado el sistema de vigilancia tiene la obligación de dicha inscripción.

La creación de un fichero de imágenes de videovigilancia exige su previa notificación a la Agencia Española de Protección de Datos. Esto afecta a instalaciones en las que se graben las imágenes.

Según la Instrucción 1/2006, de 8 de Noviembre, de la Agencia Española de Protección de Datos:

  • Las grabaciones tendrán que inscribirse en la agencia española de protección de datos.
  • Las grabaciones deberán ser eliminadas en el plazo máximo de un mes.
  • Se colocarán los distintivos informativos, identificando el responsable ante quien ejercer los derechos de protección de datos.
  • Se debe cumplir la instrucción en un plazo máximo de 3 meses desde su entrada en vigor.

TIPOS DE CABLEADOS

Vamos a detallar las diferencia entre los tipos de cableados que componen los sistemas de videovigilancia.

TIPO DE CABLEADO Coaxial RG 56 Coaxial RG59 UTP Unshielded Twisted Pair

CAT-5E

UTP Unshielded Twisted Pair

CAT-6

FIBRA ÓPTICA
 cablle coaxial videovigilancia  cable coaxial 59 videovigilancia  cable CAT-5E videovigilancia  CABLE CAT6 VIDEOVIGILANCIA  CABLE FIBRA ÓPTICA VIDEOVIGILANCIA
CALIDAD IMAGEN A 150 Mts

7.0

7.0 5.5 7.0

7.0

CALIDAD IMAGEN A 300 Mts

6.5

6.5 2.0 3.5

7.0

CALIDAD IMAGEN A 1 KM

2.5

2.5 0.5 3.0

7.0

DIÁMETRO DEL CABLE

6,15 mm

6.19 mm 5,8 mm 5,8 mm

9 mm

TRANSMISIÓN DATOS HASTA

450 Mts

450 Mts 100 Mts

Hasta 300 con balun activo.Máximo 1000Mts

100 Mts

Hasta 300 con balun activo.Máximo 1000Mts

Multimodal 2000 Mts

Monomodal 10.000 Mts

ATENUACIÓN-INTERFERENCIAS

 @5MHz (dB/100)

1.93

1.57 4.06 4.06

1.67

EFICACIA BLINDAJE dB

80

80 40 40

No existe

VIDA ÚTIL APROXIMADA

10 años

10 años

5 años

5 años

10 años

PRECIOS MT CABLE

0.60 A 0.70€

0.60 A 0.90€ 0.40 A 0.50€ 0.40 A 0.60€

1,3 a 1,6 €

                    sistemas de conexión de cables videovigilanciasistemas de conexión de cables videovigilancia
CONCLUSIONES

Si estamos en instalaciones pequeñas que no superen los 450 mts el cable coaxial es probablemente la elección más económica.Aporta buena calidad de imagen, para distancias cortas. Como por ejemplo,  para instalar una cámara dentro de una viviendo o un local a precio un precio muy inferior al de cable UTP, o la fibra óptica.

En lugares, donde las distancias entre cámaras y grabadores sean inferiores a los 800 mts, es recomendable utilizar siempre cable UTP.  Por la facilidad a la hora de implementar sistemas a un precio asequible. Por otro lado, la distancia máxima aconsejada con este tipo de cable no debe superar los 1000 mts, si queremos evitarnos algún que otro problema. También hay que tener en cuenta que la protección del cable contra roedores y en ambientes húmedos o bajo agua es bastante limitada.

Para instalaciones, donde las distancias lleguen o superen los 1000 mts, es aconsejable utilizar siempre la fibra óptica. La velocidad de transmisión, la calidad de la imagen y la durabilidad son muy superiores al cable UTP. El coste de los convertidores de medios, en comparación a los del cable UTP, a veces puede parecer mayor, pero a lo largo de la vida útil siempre va a ser mucho más rentable y fiable.

Desde una perspectiva de futuro, siempre es mejor instalar el cableado que ofrezca las mejores posibilidades, ya que las necesidades de tráfico de datos actuales pueden duplicarse cada 18 meses. La dificultad y coste, que supone sustituir el cableado, obliga a que nos anticipemos a las posibles necesidades que van surgir de cara a un futuro cada vez más cercano.