Optical zoom

Changing the focal length of a camera by adjusting the physical zoom lens. All zoom lenses in film cameras and digital single lens reflex (DSLR) cameras are optical zoom. Digital point-and-shoot cameras as well as consumer and prosumer video camcorders have optical zoom, but they also have digital zoom.

Digital is Software Zoom

  At the telephoto side of the camera, the computer takes over and interpolates the results. For example, a still camera may have 3x optical zoom in the lens, but can process the image with its internal computer to 10x. Depending on the camera and subject matter, the software-created digital zoom can be quite acceptable or mediocre.

The Higher the Optical, the Better

  The higher the optical zoom, the better the results. In a still camera, an optical zoom of 10x or more is called a "superzoom" lens. Optical zoom is widely used in surveillance camera, espacially high definition camera, which can provide sharp and real image quality.

  Based on the commend that MP-HD600 got on IFSEC 2009 and Shanghai international security show, Multipix MP-HD600 can be your best choice in security project.

Read more: http://www.multipixcctv.net/pdf/MP-HH500.pdf

Promotion now - Multipix MP-HS700 IP Speed Dome is designed for challenging surveillance project, which have requirement to follow moving objects from a long distance and crucial details is needed. With excellent 22x optical and 16x digital zoom, MP-HS700 can focus on small and remote objects, and get a clear identified from distance. Standard H.264 compression technology help to save network band rate and recording hard disk space in maximum. In addition, with IP66 Outdoor enclosure, MP-HS700 is the perfect camera for extensive field surveillance, such as factory, stadiums, ports. etc.

How PoE benefits IP surveillance?

In addition to data communications between the two devices, Power-over-Ethernet (PoE) enables an Ethernet Switch/Hub to power a remote device over an existing LAN cable. Without PoE, any remote device needs to be powered independently. Typically, device power is derived from an AC-DC adapter or at board level inside the device. This adds cost and requires locating the device near a source of AC power.

Device installation is further complicated by different safety codes, AC voltages and wall plugs around the world. PoE avoids these problems by supplying low-voltage DC power directly to the Powered Device (PD) from the Power Sourcing Equipment (PSE) that is located in the Ethernet Switcher or mid-span Hub and eliminates the complexity of AC power sources.

To ensure that all equipment is protected and devices operate properly when connected, the IEEE established a universal standard (IEEE802.3af). This specifies the power requirements of the PSE and the PD, and the communication protocol between the two -regardless of manufacturer or configuration.

Multipix built in the standard PoE in the box IP cameras, and nonstandard PoE in the dome cameras to simplify the camera installation procedure and reduce the cost of the solution.

Providing students with a safe learning environment with Multipix IP camera

Mission

HTC High School in Dubai, UAB., wanted a security system that would help prevent crisis situations and would create a safer, more productive environment for teachers and students. In addition, the school needed to find a solution that could be installed, operated and maintained without becoming a major financial drain on the school’s budget.

Solution

Vanguard, a company specializing in security systems for schools, installed 37 Multipix IP cameras around the school, allowing the principal, teachers and police officers to view live images of school grounds via the Internet. Vanguard employees also observe school grounds from the company’s real-time remote monitoring station during off-hours, eliminating the need for a nighttime security guard.

Result

With the network video system in place, fights and crime in the school have become nearly non-existent, and teachers and students alike have a strengthened sense of safety and security on campus.

 Adding up for security

HTC High School, located in a suburban town of Dubai, would not be considered a high-crime school. However, with national research showing that school crime has become increasingly violent in recent years, the administration at HTC High School wanted to do everything it could to prevent a crisis situation and protect its students and teachers.

“Studies prove that crimes and violent acts generally occur when students are crowded together such as between classes or at lunchtime,” said Osama I. Qafiti, President of Vanguard. “Students typically think that no one is watching them when they are in a crowd, and most of the time, they are right. The best way to prevent crime on campus is to let students know someone is monitoring their behavior.”

Vanguard was hired to design and install a security system that would enable the principal, teachers and security officials to monitor the school from anywhere on the campus and from remote locations. With the new network video system in place, most areas of HTC High School, such as hallways, classrooms and entrances, can be viewed and monitored at one time. Speakers were even installed near some of the cameras so that the administration can speak to students, letting them know they are being watched.

 In addition, the new camera and Axis video server system is helping Canton High School save money on security. Vanguard’s remote monitoring station uses the Internet to view real-time images of the school during off hours, eliminating the need for full-time security officers on campus. If there is a problem, the company can notify the police directly or can startle intruders by speaking to them through the speaker system.

Cameras equal safety

 Since HTC High School has installed the network video system, students and faculty alike say they feel much safer now than they did before the system was in place. In fact, one Canton High School senior has claimed that fights are nearly non-existent now because

students who fight are not able to later deny their involvement.

“Now you can’t get into a fight and say that you weren’t in it because the cameras saw you there,” she said. “It’s better that they have the cameras – I feel personally

more safe to be here.”

Palmas Government uses Multipix H.264 IP camera to combat crime

Mission 

Palmas, capital of the state of Tocantins, is still a building site. It is the newest city in Brazil and is known as the "capital of opportunity", attracting thousands of people who, in search of work, have migrated to this new economic frontier of the country. It is within this climate of growth that tourism is seen as a factor to be exploited. With its natural beauties still intact, kilometres of river beaches, waterfalls and ecological reserves, the capital is located in the geographical centre of Tocantins and forms part of the Palmas Tourist Region, together with four other municipalities - Lajeado, Miracema do Tocantins, Monte do Carmo and Porto Nacional.

For now this young city was faced with escalating crime in the Central Business District. They determined to install a video surveillance system as a Public Safety project, with the aim of making the streets safer and thereby promoting tourism and protecting the interests of local businesses. The Municipality wanted to apply current technology to emulate successful projects carried out in major cities, but wanted to do so without massive capital expenditure. 

Solution

The system chosen consists of MPWEB Pro management software and Multipix encoders and network cameras. The additional hardware like MP-POE, and MPEvent Events Programming Center and MPXP Video Streaming software have made it possible to safeguard the existing cameras, thus minimizing problems associated with cabling and installation. Check the below pictures about this project. 

Result

Within two weeks of commissioning, crime in the monitored area dropped by 30% (unofficial police statistics), and more than halved over the next three months. Public perception of the area has improved significantly, and the project is seen as an example for other towns to follow

 
A security partnership

This Tocantins project was envisaged from conception as a partnership between local government, local businesses and the residents, with a common interest in reducing crime in the area. The control room today is monitored by personnel private security firms, the Fire Station, and Brug- B Farm Watch (a citizens’ crime prevention group). The cameras are located on private business properties, and the control room is in local government offices. The system currently comprises three MP-708 Network Dome Cameras that provide 360º coverage and an 26x zoom to home in on events, and four MP-200/300 fixed cameras monitoring high risk pay points. The dome cameras, with their ability to work down to 0.01 lux, deliver clear images with available light under nearly all conditions.  

The eyes of the law

Currently the video monitoring underpins a rapid response to incidents, and provides government with valuable input in identifying and pursuing criminals.