leptop repairing in bhilai

Ravi Solutions has become the best institute in Bhilai Chhattisgarh, India who provides the pioneer Chip Level Laptop Repairing Course in Bhilai Chhattisgarh learning that the students get skills in identification and repair the various laptop problems such as burnt parts replacement, battery repair, mother board repair, OS maintenance, speaker repair, hard disk, troubleshooting, assembly, disassembly and replacement of chip level parts.

leptop chip level training in chhattisgarh
 
 

Ravi Solutions is well-known and respected among Laptop, computer or Desktop professionals. we have more than 100 training centers in the country and, to date, have trained more than six million students. Ravi Solutions is known for their strong infrastructure and quality education training and international best practices in computer and Laptop hardware and Software repair training in Chhattisgarh. our Laptop and Desktop Chip level and Card level training technology receives high marks for the manner in which we offer simulations to help trainees feel as if they are working in real environments. The simulations include live demonstrations of technical topics with plenty of useful practice sessions.

 
Mobile Repairing in bhilai

Ravi Solutions is the foremost Mobile Repairing Institute in Bhilai Chhattisgarh. We provide basic, advance and Combo level Mobile Repair Courses. Our entire course syllabus is simplified such that even a matriculate can grasp the concepts. Also, we are backed by highly experienced trainers & instructors who are well-versed with the latest Mobile technology.

Ravi Solutions is the pioneer of Mobile Repair Courses. With our industry expertise and zeal to provide 100% student satisfaction, we have trained thousands of professionals in mobile engineering. We don't just offer a course but a secure career! Students after completing this course are provided with a certificate, FREE mobile repair tool kits, and several other gifts. Also, being one of the Best Mobile Repair Training Institutes in Chhattisgarh, We keep on offering various schemes and offers to the students. Other factors which have made us leader in technical education sector are :

 
cctv camera training in bhilai chhattsgarh

cctv installation training in chhattisgarh

MODULE E1 BASIC OF ELECTRONICS
·         Ac , Dc Volt, Ampear, ,       Typeas Of Circuit
·         Close, Open Short, Series, Parallel Circuit
·         Multimeter Used,      Testing Wire Ok
·         Resistence Measure         Wiring Concept
·         Types Of Material     Conductor  , Semi Conductor, Instulator
·         Measurement Unit
MODULE S2  CCTV SECURITY BASIC
Introduction To (CCTV)Close Circuit Tele Vision
Types of cameras (
CCTV analog camera vs digital camera. , ip camera
·         Dome Security Camera        Outdoor Security Camera
·         Bullet Camera’s                    Speed Dome Cameras
·         C /CS Mount Cameras         Day & Night Camera
·         (PTZ) Pan Tilt Zoom Camera
·         Network IP Camera             Wireless Security Camera
·         Hidden Security Camera
·         IR Camera                          IR Dual Camera
·         Zoom Cameras                  Water Proof Cameras
·         Camera Types Video Class

Selecting cameras as per situation
·          
Types Of Device (Selecting Device)
·          
Types Of Cable Connection
·         
Types of connectors

Introduction to tools
Adapter types dvr adapter, cameara adapter

MODULE S3 CCTV INSTALLATION
Site Analyse 
Installation Camera

DVR SETUP
 MODULE  S4 CCTV NETWORKING ENGINEAR ( ip camera,
MOBILE BROWSING
·          
IP CAMERA  & NVR SETUP

At RaviSolutions we provide all types of surveillance systems with following equipments:
 
Dome cameras are becoming increasingly popular due to their ability to blend in with their surroundings. These cameras are used in residential applications as well as public places such as convenience stores, offices, and lobbies. Though they can be mounted to a wall, they are usually mounted on the ceiling.
   
Bullet cameras are encased in cylindrical usually weather resistant housings. Their size, cost and integrated design make them a great choice for home and outdoor installations.
   
Box cameras can be used with or without a housing. In most instances, they are used with a housing and bracket unit for outdoor areas such as parking lots and entry gates. Lenses are purchased separately offering greater flexibility.
   
PTZ cameras are more expensive but offer the operator more control with remote pan/tilt/zoom. These cameras are used primarily when an operator is actively monitoring an area and needs to manipulate the camera. They are popular in department stores, casi-nos and government buildings.
   
Covert or Spy cameras are designed for discreet installations. They are commonly re-ferred to as a nanny cam. Used frequently by private investigators, they effectively cap-ture video without others being aware.
 
Camera Specifications :
 
Camera Resolutions
One of the most common differences between cameras is the resolution offered. Camera resolution is measured by the number of horizontal lines the camera chip produces. It is re-ferred to as TV lines or TVL. The more lines of resolution, the higher the image quality. Stan-dard quality is from 380TVL to 420TVL. High quality is from 420TVL to 480TVL. Very high quality is anything above 480TVL.
Cameras are available with a wide range of features such as infrared technology, weather-proof housing, vandal proof housing, and various mounting options.

Lux is the SI unit of luminous emittance used in photometry as a measure of the apparent intensity of light hitting or passing through a surface. IR cameras have a 0 lux rating as they illuminate in total darkness. Some cameras are known as Day/Night and have very low lux ratings indicating it needs only a small amount of light to capture images in darkness. The chart below is an example of how much light is produced from certain sources measured in lux. If a camera has a lux rating of 0.1 and gets light equivalent to that of a full moon, it will be able to produce an image.
 
InfraRed Technology
Infrared technology (IR) refers to the cameras ability to capture images in total darkness. Cameras featuring IR product color images during daylight and switch to black and white at night. When choosing this feature, you will want an accurate measure of the distance you need illuminated at night. Some cameras are equipped with more IR lights than others and therefore are capable of producing longer range images at night.
 
Daytime Day/Night Infrared
 
DVR (Digital Video Recorders)
A digital video recorder (DVR) is the central component in any CCTV system. It is necessary to record the video from any camera. There are two main types, standalone DVRs and PC based DVRs. Standalone DVRs have been the most widely used but PC based DVRs are becoming increasingly more popular with their upgrade flexibility and decreasing costs.
Standalone DVRs : Standalone DVRs are machines are based on Linux, Unix or other proprietary operating sys-tem. Designed for a single application, they are simple to use and offer many features. They are commonly available in 4 channel, 8 channel and 16 channel and typically include a central management software (CMS) for remote viewing, PTZ control, live and recording playback op-tions and motion detection. All Vonnic brand DVRs include remote software though some other entry level DVRs may not.
 
Benefits :
  1. 1. High Resolution Recordings (720x480)
  2. 2. Feature rich, user friendly interface
  3. 3. Very stable and low maintenance
  4. 4. Easy network integration
  5. 5. Low cost
 
PC Based DVRs : A PC based DVR is a windows based computer that includes a 4,8,12,16 or 32 channel DVR card. Most DVR cards feature CMS software that offers significantly more options and customi-zations than the Standalone DVRs. Initial setup of a PC based DVR is more expensive, but you do have increased flexibility when adding cameras and storage.
Benefits :
  1. 1. High Resolution Recordings (720x480)
  2. 2. Upgrade flexibility
  3. 3. Feature rich, user friendly interface
  4. 4. Storage capacity
  5. 5. Easy network integration

Limitations :
  • 1. Windows based OS increases vulnerability to virus attacks and software crashes.
  • 2. Users must have some basic computer knowledge
 
Video Compression : MPEG4 and H.264 are the most popular video compression choices. The key to video compres-sion is the resolution and the size of the video. High resolution video files are monster size files and video compression for storage and streaming is critical to any video application. H.264 is the preferred compression method because it provides high resolution video quality from the smallest amount of video data required. Smaller files require less bandwidth and storage over previous generations of video codec's. H.264 delivers the same quality as MPEG-2 at a third to half the data rate and up to four times the frame size of MPEG-4 Part 2 at the same data rate.
 

Storage Capacity : Another important feature of a DVR is its storage capacity. When configuring how much stor-age you need, you must consider the following :

  1. » How many days of video do you want to store?
  2. » Number of cameras recording?
  3. » Frames per second each camera is recording?
  4. » How many hours per day to record?
  5. » How many days of the week to record?

  6. For example, a CCTV system with 6 cameras each recording at 30 fps, 24 hours a day, 7 days a week needs 1.4TB of storage space to maintain the data for 30 days.

 
Network Access and Remote Viewing : Network access is crucial to remotely access or monitor a video feed across a LAN, WAN, or via the internet. Newer DVRs feature the ability to remote view over a 3G network making it convenient for mobile phone users to access their DVR from virtually anywhere.
 
Accessories :
When installing any CCTV surveillance system, in addition to the cameras and DVR equipment, there are many other accessories that may be required for completion. I have listed below some of the more common accessories used by installers.
 
Cables
Video signals are transmitted from the camera to the DVR via coax or RG59 cable. Since power has to be ran to the camera as well, most installers use Siamese cable which combines the RG59 and power cable in one. Siamese cable comes in premade lengths and spools of 500 or 1000 feet. Premade cables are convenient as they already have the BNC and Power connectors attached. For longer runs, installers prefer to use the spooled ca-ble to customize their lengths.
 
Connectors & Adapters
Any CCTV installation may require various connectors and adapters. Connectors are components used to conduct and transfer signals from one cable or device to another. Adapters may be necessary to convert one type or gender of a connector to another.
 
Video Baluns
Video baluns are impedance transformers that allow the transmittance of a video signal (75 ohm) over cat 5 cable (100 ohm). They are used in pairs to transform the impedance signal at one end and to transform it back at the other end. Mismatching impedance signals will cause delays in the signal transmittance resulting in a ghosting effect on the picture. Installers use baluns in areas where cat 5 is already ran making it more convenient or for transmitting signals over distances exceeding 500ft.
 
Power Supplies
All cameras require some sort of power source. Power adapters or distribution boxes are used in most installations. If installing 4 cameras or less, most installers will choose to use a power adapter and splitter whereas installations involving more cameras, they will use a power dis-tribution box. When choosing a power adapter, be sure to get one that supports the voltage and amperage ratings for your cameras.
 
Our mission is to equip our customers with the tools, technologies, and best practices to deliver quality products on time and within budget.


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