Category Archives: Electronics

The Importance Of Evacuation Siren Systems

A disaster recovery plan and evacuation siren systems are important factors when faced with emergencies. This applies to various areas, including the field of computer security, is the set of technological measures and logistical or organizational measures to restore systems, data and infrastructure necessary to provide business services to companies, associations or institutions, in the face of severe emergencies that affect regular activities.

The Disaster Recovery Plan (DRP) is a document that spells out such measures. It is part of the wider Business Continuity Plan (BCP). For a correct application of the plan, the systems must be classified according to the following definitions :

Its functions cannot be performed without being replaced by tools (means) of the same type. Critical applications can not be replaced by manual methods. The tolerance in the event of interruption is low consequently the cost of an interruption is high.

The relevant functions can be performed manually but only for a short period. There is an increased tolerance to the interruption than that provided for critical systems, consequently, the cost of an interruption is lower because these functions can be reactivated within a short interval of time (generally within five days).

These functions can be performed manually, at tolerable cost, for a long period. Although these functions can be performed manually, their performance is however difficult and requires the use of a number of people in higher than normally expected under normal conditions.

Their functions may be interrupted for a long period with a modest or no cost to the company and requires limited (or no) effort to restart when the system is restored.

The application procedures, system software and files that have been classified and documented as critical must be restored. Applications, software and files classified as critical have a very low tolerance for interruptions. The criticality of applications, system software and data should be considered depending on the time of year when the disaster can happen.

A contingency plan should provide for the recovery of all business functions and not just the ICT service center. DRP must be evaluated on the most appropriate recovery strategies : alternative sites, back up methods, replacement of equipment and the roles and responsibilities of the team.

The prolonged unavailability of the elaborative service arising in particular from the disaster situation, and therefore of primary services, necessitates the use of evacuation siren systems and a recovery strategy in the alternative site.

The impact of these emergencies is such that it is estimated that most large companies spend between 2% and 4% of their IT budget on disaster recovery management planning in order to avoid larger losses in case activities can not continue due to the loss of data and IT infrastructure.

Secret Jardin Led

Zodra je graag wilt gaan kweken met LED is het wellicht een idee om te kijken wat
Secret Jarden Led aanbiedt. Sinds zij in 2006 begonnen zag je al snel veel kwekers naar het merk
overstappen, omdat zij beduidend bezig waren hoogwaardige kwaliteitsproducten te leveren.
Momenteel is het nog steeds een van de meest populaire kweekmerken en het is ook wel te
begrijpen waarom. Naast verlichting bieden zij eigenlijk alle producten die je nodig hebt om te
kweken aan. En zelfs qua verlichting heb je een ruime keus in de sterkte. Er zijn verschillende
soorten lampen en reflectoren, maar de belangrijkste verschillen zitten tussen de TNEON, de
TLED en de CFL en 240BULB lampen.

De Tneon Lampen zijn geschikt voor een binnentent. Ze geven veel licht en nauwelijks hitte. Tneon
is geschikt voor alle verschillende groeifases van de plant. Omdat ze zo weinig hitte afgeven kun je
ze heel dicht bij je plant zetten (tot op 2 cm) zonder ze te verbranden en waardoor je planten dus
volop licht krijgen.
De TLED lampen gaan 5 keer langer mee dan welke andere belichting technologie dan ook.
CFL en 240 BULB zijn enkel gemaakt voor de groeifase van de planten, en Secret Jardin heeft hun
experts er op gezet om deze lamp zo optimaal mogelijk te maken voor de beste oogst.
Daarbij kun je de Daisy Reflector aanschaffen; een kost-effectieve reflector die met het paraplu
design geweldige lichtprestaties geeft en het aanwezige licht extra reflecteert. Dit zorgt ervoor dat
de temperatuur in het gebied lager kan worden gehouden en daardoor kun je de lamp weer dichter
op je planten zetten zonder ze te verbranden.

Wat sowieso voor kweken met Secret Jardin LED geldt is dat het het beste is om met meerdere
panelen te werken zodat je het licht goed kan verspreiden. Aanvankelijk kun je er ongeveer vanuit
gaan dat je per vierkante meter rond de 500 Watt aan Secret Jardin LED kweeklicht nodig hebt.
Soms kan kweken met LED de bladeren van de plant een beetje verkleuren. Het kan dan lijken alsof
de plant voedingsproblemen heeft, maar die verkleuringen hoeven geen reden voor paniek te zijn.
Dat soort verkleuringen lijken vooral voor te komen in de bloeifase.

Kijk per verschillende LED kweeklamp op welke afstand deze van de plant geplaatst dient te
worden. Er is voor Secret Jardin LED namelijk geen vaste afstand te noemen. Hou ook je planten
goed in de gaten en pas op dat de bovenste bladeren niet verdorren. Gemiddeld liggen de
opbrengsten van kweken met LED iets lager dan andere lampen, maar is de kwaliteit (meer hars)
wel beter.

Upgrading Surveillance Spy Equipment For Better Performance And Security

The technology in surveillance spy equipment is advancing quicker than we imagined. What used to be a simple setup comprising of stationary unidirectional cameras has morphed into sophisticated systems with features like face recognition and aero-surveillance. And there is more to it than what meets the eye.

It is time you upgrade your surveillance spy cam equipment with features that add more space and protect against cyber-attacks. Here is a quick overview of the features:

1. Space

Surveillance is a 24-hour process which means you need plenty of space to store the large amounts of data recorded. Our old surveillance equipment stores processed data in internal or external storage units that often ran out of space. Some home and business owners preferred switching off surveillance at certain periods to save on space, and this is the window a burglar needs to rob you.

A great move would be upgrading your spy system with cloud storage. This means surveillance footage is stored and processed in a remote large-capacity server. You then can run your spy equipment 24/7 without worrying about space.

2. Data Processing

If you own video-enabled surveillance spy equipment, the last thing you need is footage lags during real-time recording. To curb this problem, manufacturers of spy systems use a wide range of technological concepts like edge computing. This allows a centralized system for data processing that reduces round time (how fast data is sent from a surveillance device to a remote server for processing then back to the device for interpretation).

3. Face Recognition

Face recognition is still a fresh concept in surveillance technology but has tremendous results. This new feature is part of the artificial intelligence (or AI) and involves your surveillance camera being able to recognize all your family members. If the camera detects a new face within your vicinity, it immediately sends a security alert to your phone.

4. Surveillance Security

Yes, even your surveillance systems need protection from intruders. As long as your spy system is connected to Wi-Fi, it will always be vulnerable to hacking. However, you can curb this by never accessing your surveillance security through public connections. Create stronger passwords for your spy system and you may also use anti-jammer software to intercept illegal signals.

Upgrading your surveillance spy cam equipment is a huge step to fortifying security around your home or property. The above tips are a hint of how technology can improve your spy systems. Hopefully, they will help you ensure that your systems remain fit for purpose, reliable, and compliant with security standards and regulations and offer benefits beyond security.

Guide To Audio Converters Online

Typically, lossless compression is used to divide the file size by two or three. It is relatively little used, because the gain is very low compared to those allowed by the lossy compression (which is a big handicap for the exchange of files) and entails time-consuming calculation for coding. No standard has thus sufficiently become universally readable.

FLAC (Free Lossless Audio Codec) format is an open format for lossless audio compression. Maintained by the foundation, it is treasured to maintain quality of the original sound files in alternative formats MP3 lossy compression category.

Sampling frequency refers to the number of samples per second used to describe numerically the signal representing the sound wave for each channel. Bandwidth depends heavily on this feature. Depending on the use to which the file is intended, certain characteristics are more important compared to others.

The flow rate of Audio Converters Online should be reduced to save sufficiently long in the memories of players. Computing power needed to decode must be low to allow proper autonomy of readers. Bandwidth must be good for listening to music. The signal to noise ratio does not need to be very good, because the consumer does not happen in quiet and listening for local.

The possibility of automatically adapting the listening room (raising the level of quiet passages when the atmosphere is loud with ancillary data) is an advantage. The reconstruction of the waveform is pointless. The computing power required to code can be significant.

Throughput and computing power as coding decoding that are almost indifferent. Management rights of reproduction, adaptation and automatic listening room have no interest at this stage. In a given format, the files can be broken down into several levels of quantification (8, 16 or 24 bits) with different sampling frequencies applied to a number of channels.

Audio Converters Online formats use the flow reduction by psychoacoustic coding offer various grades of coding, corresponding to more or less flow restriction. The number of sound channels can be real and separate or mixed discreetly with main signals and will be decoded and returned later using specific algorithms (surround). When there is flow reduction, it can utilize the redundancy between channels.

The filter bank used in the MP3 layer is called the hybrid filter bank polyphase. It takes care of the mapping from the time domain to the frequency, both for the encoder and decoder reconstruction filters. The output samples are quantized and provide a varying frequency resolution, subbands better adjusted to the critical bands of different frequencies.

Using 18 points, the maximum number of frequency components is: 32 x 18 = 576.

Android TV Box Apps For Entertainment

An Android TV box can turn any television into a powerful entertainment center. It is not just good for viewing television shows and streaming movies. By installing different apps, you can expand its range of abilities without spending a dime. Consider the following applications:

Web Browsers

Surf the web using your TV. The screen is much bigger than regular computer monitors so you can enjoy images and videos much better. Televisions are also located in common areas like the living room so you can browse along with your family. If you ever wanted to share news items, viral videos, funny memes, then do it using the Android box. Everyone will get to see at the same time for a hearty laugh.

Media Players

Most of us have amassed a sizeable collection of videos in our external hard drives over the years. You can plug these to your TV box for viewing if you would like to reminisce. Just make sure that you have compatible media players for the files that you wish to open. Some videos will not play nice with the built-in players so try downloading the other ones from the Play Store. You can also try updating your old apps as newer versions may be better at handling certain codecs.

Music Streaming

It’s not all about movies and TV shows. Sometimes you just want to close your eyes and listen to music. Be sure to get music streaming applications like Spotify and the like. Build your own playlist or check out the ones recommended by these apps. Discover new tracks and expand your musical knowledge. Listen to your favorite artists and find out about the latest releases.

Cloud Storage

If you have treasured photographs, then make sure that you will never lose your copies. Upload them online to cloud storage services so that you will always have a backup. These are accessible anytime and anywhere. You could install Google Drive or similar apps on your TV box and access your photos from them. Show them off to your friends or create a slideshow that runs while you work.


You can play games on your phone. There is no reason why you can’t do the same on your TV once it is plugged in to the Android box. It would be best to have a full Bluetooth keypad for controls. The only issue is that some games will insist on portrait mode so you can’t take full advantage of the big screen. Try out different titles and see which ones have the best gameplay and compatibility.

Huawei Mate 20 и Mate 20 Pro отвеждат фотографията на следващо ниво

Новите смартфони на китайския технологичен гигант Huawei – Mate 20 и Mate 20 Pro са
със сигурност най-очакваните телефони тази година. Те ще бъдат официално представени
пред медиите и потребителите на специално събитие, организирано от компанията на 16-
ти октомври в град Лондон.

Какво да очакваме?

Новите бизнес телефони от серията Mate – Mate 20 и Mate 20 Pro обещават на
потребителите много по-добро изживяване.

Повече мощност и по-добър дисплей

Водещият телефон на марката Mate 20 се очаква да бъде с 6,3-инчов AMOLED дисплей за
разлика от своя предшественик, който притежава 5,9-инчов панел. Смартфонът ще бъде
със съотношение на страните 18:9 и с малък прорез в горната част на дисплея. При модела
Mate 20 Pro се очаква да видим масивен 6,9-инчов AMOLED дисплей, направен от
Samsung. В социалните мрежи се появиха слухове, че най-вероятно можем да очакваме
този смартфон да бъде с Quad HD дисплей.
Mate 20 ще се захранва от процесор Kirin 980, който е бъде първият обществено
представен 7-нанометров телефонен чип, както се очаква и да бъде оборудван с 6 GB
вътрешна памет. Pro версията ще бъде със същия модел процесор, но се очаква да се
предлага в два варианта в зависимост от размера на вградената памет – 6 GB или 8 GB.

Голяма батерия за повече забавление

Ако сте сред потребителите, които очакват батерията на смартфона ви да издържи цял
ден, то от Huawei ще се погрижат да не останете разочаровани. Новите смартфони ще
бъдат оборудвани с 4,200 mAh батерия, като в Pro версията, дори се очаква батерията да е
с изключителните 5,000 mAh.

Тройна камера за перфектни снимки

Ако моделът Huawei P20 Pro беше революция при правенето на снимки при слаба
светлина с мобилен телефон, то от Mate 20 серията се очаква да поеме още една стъпка
напред с представянето на подобрената и надградена версия на тази технология.
Новите смартфони ще бъдат оборувани с модифицираната технология наречена
„FusionMind”, която ще наподобява много на съществуващата вече „Fusion Light”, която
беше предствена в настоящия флагман P20 Pro. Тя ще има способността да комбинира

множество пиксели в един, но ще се свързва с изкуствения интелект на Huawei. По този
начин потребителите ще имат възможност да запазват изображения с максимална
резолюция или в 10 мегапиксела. С помощта на изкуствения интелект, този процес ще се
осъществява автоматично, като софтуерът ще преценява с какво качество да бъдат
запазени кадрите, в зависимост от сцената.

Също така е важно да отбележим, че смартфоните от серията Mate 20 ще бъдат
оборудвани с 3 камери в задната част на телефона, както и предна камера за селфита.

Очаква се телефоните да бъдат в продажба в началото на месец ноември.

Radio Broadcasting Equipment Suppliers

Multimedia Broadcast Multicast Service is a service in the UMTS mobile phone standard, capable of transmitting multimedia data, such as mobile TV or files to many users simultaneously and efficiently. The data stream is sent individually to each user, which significantly lowers network load because the data is sent only once. This results in savings in both the radio network (Radio Access Network – RAN) as well as in the transmission network, in which IP multicast can be used.

MBMS offers two transmission modes: broadcast: UMTS MBMS reception and multicast reception of services that do require authentication.

For both modes, the wireless network can identify the user density per cell and select the type of radio bearer (point-to-point or point-to-multipoint support). With few users, point-to-point is (conventionally or via HSDPA) efficient because optimization mechanisms such as power control can be used while for many users the point-to-multipoint transmission is cheaper because the signal is sent only once and can handle unlimited number of users.

The ability to select the carrier in broadcast mode was added late in the Release 6 to enable the elimination of the multicast procedures. It can change faster between television channels while enabling efficient transmission in the radio network. Both methods support encryption so that both free and fee-based services with two modes are possible.

MBMS is different from other methods that offer Mobile TV, such as DVB-H or DMB, in that the data is not transmitted via its own frequencies and channels similar to classic television but over UMTS. This has the advantage that it needs additional frequencies and establish a new network infrastructure for mobile operators. In addition, the services in geographically limited areas can be offered (cell-based), such as special channels in football stadiums. MBMS is not limited to video transmission, but also offers the possibility to distribute files (eg podcasts) to many users.

A disadvantage of the use of MBMS for mobile TV is the relatively low number of simultaneously transmitted television channels (four to eight point-to-multipoint transmissions per 5 MHz carrier), wherein a large portion of the cell capacity for MBMS services used . However, only the channels in a cell must be sent.

MBMS is part of the UMTS specification of Release 6, which is largely completed in the 3GPP standardization body. It is in the context of 3GPP Long Term Evolution (LTE) and System Architecture Evolution (SAE) expanded.

GMR-1 offered by Radio Broadcasting Equipment Suppliers leans heavily on GSM. The transmission protocol differs only in the lowest three OSI layers, for GmPRS only the lowest two. Specialized features include terminal-to-terminal.