When people's security awareness becomes stronger and stronger, surveillance has become one of the most widely used systems in security systems, and surveillance cameras are commonly installed in some public locations to ensure security. The biggest problem encountered when installing the camera at the outlets of the outlets is that backlighting will occur on the monitoring screen. Backlight control is too "glare" how to do? This article describes the three methods are to improve the backlight phenomenon has a certain effect, in the use of the process still need to be based on the site environment and other conditions to consider, and comprehensively seek the best solution.

Method One: Cameras Avoid Direct Sunlight

Adjust the installation location of the entrance camera, flip-chip may be a good choice. For example, a camera at the entrance of a certain outlet needs to monitor the incoming and outgoing personnel. When the camera is installed facing the entrance and exit, serious backlighting may be encountered, causing the monitoring screen to appear dark. At this point, if we flipped the camera and put the lens on the person walking out of the network, the monitor screen would avoid direct sunlight and could solve the back light problem.

Method Two: Select a Camera with Improved Backlighting

In the range of security camera types, there are two types of cameras that can solve back light problems, cameras with backlight compensation and wide dynamic cameras. Backlight compensation can divide the picture into several different areas, each of which is exposed separately. When the screen is dark and non-hierarchy, backlight compensation is introduced, and the subject picture on the monitor is clear, which reduces the subjective brightness difference between the background picture and the subject picture, so that the visibility of the entire scene is improved. The wide dynamic camera can be exposed twice at the same time. After synthesis, the bright and dark objects on the screen can be seen at the same time. Compared with the backlight compensation, the wide dynamic technology is better.

Method 3: Improve Indoor Illumination

The reason for the back light phenomenon is that the contrast of the light intensity in the monitoring range is too great, so the black and white level contrast of the formed image becomes stronger. If you improve the illumination of the indoor light source, enhance the indoor light, and reduce the contrast between the interior and the external light, you can improve the backlight phenomenon.

Elevator Modernization

Elevator modernization (or lift modernisation) is the process of upgrading the critical parts of the elevator in order for it to be able to handle new technology, have better performance, improve safety, and even give the aesthetics an up-to-date appeal


Most elevators are built to provide about 20 years of service, as long as service intervals specified and periodic maintenance/inspections by the manufacturer are followed. As the elevator ages and equipment become increasingly difficult to find or replace, along with code changes and deteriorating ride performance, a complete overhaul of the elevator may be suggested to the building owners.

A typical modernization consists of controller equipment, electrical wiring and buttons, position indicators and direction arrows, hoist machines and motors (including door operators), and sometimes door hanger tracks. Rarely are car slings, rails, or other heavy structures changed. The cost of an elevator modernization can range greatly depending on which type of equipment is to be installed.

Modernization can greatly improve operational reliability by replacing mechanical relays and contacts with solid-state electronics. Ride quality can be improved by replacing motor-generator-based drive designs with Variable-Voltage, Variable Frequency (VVVF) drives, providing near-seamless acceleration and deceleration. Passenger safety is also improved by updating systems and equipment to conform to current codes.



Components needs to be replaced in different elevator modernization plan

Component Scheme of elevator modernization plan
Refurbishment work Partial modernization Full modernization Full replacement
Elevator car
Sling No No by building owners Yes
Door operator No by building owners Yes Yes
Cab design by building owners by building owners Yes Yes
Car doors by building owners by building owners Yes Yes
Car fixtures Yes by building owners Yes Yes
Wedges connected to the governor No No Yes Yes
Additional phone/intercom if they don't equipped by building owners Yes Yes Yes
Traveling cable No Yes Yes Yes
Hydraulic rams No No No Yes
Wire ropes No by building owners Yes Yes
Shaft
Counterweight No No No Yes
Guide rails No No No Yes
Buffers No No Yes Yes
Electrical components No No No Yes
Tapehead No Yes Yes Yes
Limit switches No Yes Yes Yes
Wiring No Yes Yes Yes
Compensations No No No Yes
Lobby
Shaft door components by building owners by building owners Yes Yes
Shaft doors by building owners by building owners by building owners Yes
Hall fixtures Yes by building owners Yes Yes
Machine room
Machines No by building owners Yes Yes
Controllers No Yes Yes Yes
Removal of the selector by building owners Yes Yes Yes
Overspeed governor No No Yes Yes
Additional unintended car movement protection device if they don't equipped by building owners by elevator safety code in countries
Backup battery or uninterruptible power supply No Yes Yes Yes




Benefits of elevator modernization

Modernization can greatly improve operational reliability by replacing mechanical relays and contacts with solid-state electronics. Ride quality can be improved by replacing motor-generator-based drive designs with Variable-Voltage, Variable Frequency (VVVF) drives, providing near-seamless acceleration and deceleration. Passenger safety is also improved by updating systems and equipment (such as double brake system, unintended car movement protection device on the brake system etc.) to conform to current codes.




With CEP traction elevator modernization, we use the existing elevator structure while upgrading the ride quality and reliability with state-of-the-art components. Upgrade to a CEP closed loop door operator or a sophisticated, energy saving VVVF inverter.

CEP traction elevator modernization can include:

  • CEP Microprocessor Based Control System
  • CEP Microprocessor Based Efficient Dispatch System
  • Energy Efficient AC Drives or SCR Drives on Existing AC Gearless Machines
  • Traction Machines (Geared / Gearless)
  • Rope Brake System
  • CEP Closed Loop Door Operating System
  • Car & Hall Pushbutton Fixtures & Indicators
  • Car & Counterweight Roller Guides
  • Seismic Upgrades
  • Security Upgrades
  • Cab Interior Renovations or Cab Replacement

NOTE: Complete tear-out modernizations are available.

Contact us TODAY for Right Modernization Package Available


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