Posts Tagged ‘ IP PTZ’



Configure Multi-scene on a IP PTZ Auto Tracker

Written By:
Monday, March 30th, 2015

Technology in the CCTV industry advances rapidly, as well as our knowledge and dedication to lean more about the products we support and sell. Today I will be demonstrating how to configure one of our newest IP PTZ cameras (an IP PTZ Auto Tracker) that is capable to track an object based on a rule. When that rule is triggered, the camera will perform the tracking action by following the object as much as it can.

This auto tracking method is called multi-scene. It basically operates based on presets and the camera will look on all presets to see if any of the rules have been triggered. Then it will look at whatever triggered that rule and the camera will follow it until it goes out of it’s view.

Login to the camera and go to  Setup. In the left hand side click on IVS Setup and the IVS setup menu will appear:

IP PTZ Dome IVS Setup

Front this window, click on IVS Enable. Under the scene type select Multi Scene and click Save. Go to Scene Setup and using the arrows located at the bottom left, move the camera to the area you would like to monitor. To store that area as your first preset you will need to click on “Add Scene”. When moving the camera you can click on Plus (+) and Minus (-) sign to Zoom in and out. Once you are happy with the zoom you can click on “Set Track Rate” to indicate the maximum amount of Zoom the camera will utilize when it senses that one of the triggers have been activated.  Zoom back out and click Save. Move the camera to another area and repeat the same steps, once you have created multiple areas then click Save. At the end it will look something like this:

IVS Scene Setup

IVS Scene-Multiscene Tab

Noticed that I have added 3 Scenes to my setup. Under scene name you can click on any of the scenes to change the star interval. The stay time interval is measured by seconds and it will make the camera stay on each preset depending on how long the time is configured. Click on Multi-Scene to now add the scenes (presets) you have created. Click on Add Path and a new Scene name will appear. Click on the scene name to change the name and Stay Time. Noticed that when clicking the button Add Path Scene 1 will appear over and over. You will need to click on the name  and from the drop down select the next available preset you created. noticed the camera now will move to that preset.

Scene path name change

Lets move to the Rule Setup. In this section we will configure a few rules. The picture of the first scene should appear allowing you to click on “Add Rule”. A Scene 1_1 will be created and we can proceed to choose different types of Ryle Types. For this demonstration I will show you how to configure tripwire and intrusion.

Rule Setup _Add Rule

From the list, select intrusion for the rule type then click on Draw. A new notification will show stating “Please draw the region”. In order to do so move your mouse to the video displaying in the window and while holding the left click of the mouse drag it to the areas you wanted to allocate as intrusion. On the bottom of the video feed you can see the direction of the intrusion, you can choose enter, leave or Both, that means that when the trigger is broken the camera will track whatever activate the rule. Save the settings and click on the Live Tab to view the camera performed the action when the rule is triggered.

Intrusion Rule

Like you see in the pictures below an intruder crossed the intrusion area I configured in the camera then it started tracking him.

Detection 1 Detection 2 Detection 3 Detection 4

Let’s now configure a rule with tripwire. The process is the same, the only difference is that tripwire is a single line instead. You can also assign this rule to activate when an object crosses from A side, B side, A to B side or vice versa.

Intrusion detection

Like you see in the pictures above an intruder tripped the tripwire rule I have configured in the camera then it started tracking him.

TripWire 1 Tripwire 2

At this point the camera will be able to activate with any of the triggers I have configured. One recommendation about this camera is to make sure is installed as high as possible so it has more field of view to track more accurately.

Other type of configurations rules you can set in this camera are Cross Warning Zone, this type of setting basically detects the moving object crossing a specified are you draw in the picture. It can detect objects entering or leaving the area and it also support object size filter.

Perimeter Detection detects when an object is crossing the perimeter. It consist of any combination of two straight lines. It also support one-way, dual-way cross detection.

Loitering Detection is similar to intrusion detection. It detects the object in the specific zone and if it stays in the area for a while, it will create an alarm and will make the camera track the object in question.

Abandoned Object Detection is ideal to configure in those areas where a lot of pedestrian traffic occurs. For example, in an airport you can configure this setting in a specific area and if someone leaves an object in the marked area it will immediately sends an alert and make the camera track the object in question.

Missing Object Detection is pretty much the same idea as Object Detection, but the camera only detects objects that were in the designated area and at any point in time if the object disappears, then the camera will track and create an alarm.

One other way to configure this camera beside a single scene or multi scene is called Panorama Scene.  The system can auto track the object when there is any object entering the monitor zone. For example, when there is an object entering the monitor zone, you can set the speed dome to enable auto tracking function after it recognized the object for 1 second. You can set it to track the object for 30 seconds and the tracking rate is auto. You can follow the steps listed below to set.

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Understanding PTZ cameras

Written By:
Tuesday, April 22nd, 2014

Since there are a lot of Pan Tilt Zoom (PTZ) Cameras available, I will explain in this article on how to best choose the correct PTZ for your Security Camera Installation.

I will start by showing the different parts of a PTZ camera.

1. Parts of a PTZ camera

(a) Housing – Usually composed of an aluminum bell shaped cover (image 1) or some models have abs plastic housings (images 2,3)

Image 1

Image 2

Image 3

aluminium ptz housing plasticdome,jpg plasticdome2,jpg

(b) Camera module
This is where the image CCD sensor, optical lens, and the motors that control Zoom and Focus are located.

Camera Module

(c) PTZ control board
The PTZ control board processes RS485 data  that converts it into mechanical movements.
PTZ Control Board

Note: On this particular PTZ control board it has dip switches (the red block with white switches). This allows you to change the protocol and ID of the camera. Some of our cameras are configured via the OSD (On Screen Display) menu.

(d) PTZ motors – are the small motors that allow the camera to perform up, down, left and right functions. Marked by the arrows are two step motors; the one to the top controls up and down movements and the one at the bottom controls left and right movements (Image 1).

Note: The motors used on a PTZ camera are known as step motors which use steps (teeth) that allow a more precise movement vs. standard electromagnetic motors that require higher RPM’S and torque. Below are the two animated examples of an electromagnetic motor (image 2) and step motor (image 3).

Image 1

Image 2

Image 3

camera motors2 electric motor animation 1 StepperMotor1

(e) PTZ Pigtail – is the cable that comes out of the camera which allows you to connect power, video, network, audio and alarms.

The Standard size IPPTZ cameras have alarm, audio, analog BNC out and an RJ45 jack (image 1). Mini-IPPTZ do not have an analog out option.

Our analog PTZ cameras have rs485, ground, BNC analog out and DC power plug (image 2)

Image 1

Image 2

ipptz-connection ptz-analog

Note: RS485 is a simple protocol used for communication between two or more devices. The nature of RS-485 allows transmission of  PTZ data along side power or in electrically noisy environment with out interference. It has been tested to work at 1600 ft. on CAT6e cable.

2. Technologies

Currently our PTZ’s  come in three different technologies

1. Analog

2. IP

3. HD-CVI

(a) Camera cable run limitations and options to extend if necessary

Analog has a 1000 ft. Video and RS485 Range but can only be powered up to 150 ft. before voltage drop. Two ways you can counter the power limitation is by:

1. having power at the camera
2. Using a power supply with a higher amperage rating. An example of that would be if your camera is rated at 500 ma and your run is over 150 ft – use a 2-5 amp power supply. Although theoretically it should work we do not recommend exceeding the 150 ft. limit

IP has a 300 ft. limit due to standard networking limitation. Since power, video and RS485 can be run on a single CAT6e cable there is no way to increase the range without additional equipment. In the event you have to exceed the 300 ft limit you can use a POE injector that allows you to extend an additional 300 ft.

HD-CVI has 1600 ft. video and RS485 limit.  You can use CAT6e for both the RS485 and Video; for the video you will need video baluns to allow 1600 ft. range. The power has the same limitation as the analog cameras and will required local power or a higher rated 12v 2-5 amps depending on the camera requirements.

(b) Video quality and Resolutions

Analog – Our analog  cameras come with 700 TVL

IP – Range from  1.3 Mega Pixel, 2 Mega Pixel, and 3 Mega Pixel

HD-CVI – Currently only supports 1 Mega Pixel (720P)

(c) What are  differences between IP, analog + HD-CVI

1. An analog camera has to be physically connected into the DVR to record video and has a limitation of 1000ft.

An IP camera does not have to connect directly to an NVR, simply by configuring some the network you can access your camera anywhere in the world. Let say your camera is in California and your NVR ( Network Video Recorder) is in New York; you can actually record the video from that camera at your New York location. This type of setup is used frequently by government and cities to monitor remote cameras.

2. Both the IP and HD-CVI support HD resolution, 720P and 1080P, where as the analog only supports D1 resolution at 700 TVL

Note: The higher the resolution of a camera the larger the images. It allows for wider coverage areas and more details vs the analog resolution. Because the images are larger on higher resolutions its better suited to use the digital zoom to get a closer look at an object.

3. Mini and Standard size cameras

Two of the mayor differences between our mini and standard size PTZ cameras is the size of the housing and the optical lens capacities. The mini cameras are more aesthetically appealing in smaller homes and offices. The larger housings are better suited for larger homes and commercial applications.

Mini-PTZ

Standard Size PTZ

4. Camera modules

(a) The camera module houses what is called the CCD or CMOS board (image 1), lens and motors that allow fine adjustments of zoom + focus (image 2).

Image 1 – CCD OR CMOS board

Image 2 – PTZ lens with control motors

ccdboard ptz lens

(b) Image Sensor – captures light and converts it into a digital image that can be stored onto the DVR/NVR. Currently there are two different types of sensors, CCD and CMOS. There isn’t much difference as far as image quality but the CMOS sensors are known to handle brighter than normal scenarios extremely well. The CCD sensors were designed for IR applications where cut filters and automatic shutters are used. But in the past few years with advancement in technology, cameras now offer WDR or ( Wide Dynamic Range) and IR cut filters (Infrared Cut filters) which allows digital and mechanical adjustment for your specific setup. So it doesn’t matter if your using a CMOS or CCD your end results are of high quality.

CCD Sensor

CMOS Sensor

CCD cmos

(c) Optical lens – Allows for adjustment of zoom or focus. When you zoom in the lens moves closer to the image senor so the image becomes larger. When you zoom out the lens moves away from the image sensor which make the image small and results in a wider view.  When referring to 12x zoom on lets say our PTZ-LX700L12X mini it means it can zoom in 12 times the normal amount. Generally you can find out what the range on the lens is by multiplying the lens size by the times zoom. So in our PTZ-LX-700L12X you can multiply 5×12=60. Five being the lens size multiplied by zoom gives you maximum mm size of 60 mm. In this case this camera has a vari focal range of 5-60mm

Here is an example of our 23x PTZ camera, the approximate distance from the camera to the truck is 380ft.

6. Mounting options

PTZ cameras are designed to rotate a full 360 degree there for an arm (image 2), pendulum mount (image 3)or ceiling mount bracket (image 1) is used for mounting the cameras.

Ceiling mounts- A ceiling mounting is great for any application that requires a PTZ camera but with a low profile. The better half of the camera goes into any surface and has a clip mechanism to secure it. Only the dome will be visible for a aesthetically appealing look.

Arm mount- Are designed to mount a vertical plane or post. Generally this camera serves as a deterrence as it protrudes from where its mounted

Pendant mount- are designed to hang  from a horizontal surface such as ceiling, post.

 In ceiling mount   Arm mount  Pendant mount
plasticdome2,jpg 700tvl-12x-indoor-outdoor-pan-tilt-zoom-security-camera-59056big pr59195img4sma

7. Wiring PTZ cameras 

(a) Wiring RS485 for Analog PTZ cameras

There are two ways you can successfully wire PTZ cameras 1. Daisy chain  2. Star or direct connection

 Daisy Chain connection

  Star or Direct connection

multiple ptz connection daisy chain multiple ptz connection

Note: Recommended cable CAT6e but CAT5e works fine as well, Use a single pair ex: solid blue and white/ blue, use the solid blue as the positive and the white/blue as the negative.

The main difference between daisy chaining or direct connection is on a daisy chain the cameras rely on each other. So if one fails the ones that follow the failed camera will not work. On a direct connection the cable is ran directly from each camera to the controller or DVR; I normally splice in a 2-3 ft. cable to make it easier to connect. IF a camera fails none of the other cameras are affected and continue to operate as normal.

If you would like to learn more about our PTZ cameras check them out here.

**step motor and regular motor images borrowed from http://www.wikipedia.org/

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