RonR

2 elevators, 16 floors, so under 300ft of traveler cable 2 AXIS IP cameras in each elevator Current working by sharing emergency phone line, but not entirely happy with the setup, can get freezing now and then, and not just when car is in motion, seems to happen randomly, stopped or moving. Client is fine with the system, been up and running a few years, this is more my "pet peeve" No open(unused) wires at all, of any kind, on traveler cable, which is why the phone line was used. Wireless is an option as last resort, not against it just prefer a wire. There is a dedicated 110vAC circuit for vacuum cleaner plug in in each car, Lights and other AC devices, including the current camera setup are on another circuit. I have used the newer ethernet over power line units in other applications(not for cameras yet), they worked fine as long as they were on the same phase, and these would be on the same circuit, 250ft apart, wire-wise. So has anyone tried these in an elevator application?

Just an update, over 8 months now and working great Used Two TP-Link TL-PA4020P sets, they have 2 ports each(internal switch for 2 cameras) 2 POE injectors in each elevator, for the 2 cameras(axis) Elevator x 2 Camera------POE---------TL-PA4020P===powerline Camera------POE--------/ Elevator room Powerline to/from elevator 1====TL-PA4020P\--------------to NVR/DVR Powerline to/from elevator 2====TL-PA4020P-\ Just ran cat5e from one TL-PA4020P to the other in elevator room and then out with cat5e to the NVR

yes to above. Each site will need a network DVR/NVR model so it can be accessed remotely. And if not included with that brand of DVR/NVR a DDNS account, Hikvision offers free DDNS for its recorders. A DDNS is an internet address that doesn't change, so the DVR/NVR constantly "checks in" with the DDNS site, DDNS site "saves" the IP address the DRV/NVR check in on, so non-static IP address is always updated to current address. You go to the DDNS address for that site from a remote location and it forwards you to current IP address of that DVR/NVR, seemless I use ivms 4200 because I use Hikvision equipment mostly, it will display up to 48 cameras on one screen. Client software allows you to log into multiple sites at the same time, then pick and chose cameras from each site to be displayed on one screen, iVMS also has video wall option. The location where the client software is used does need some good bandwidth/speed relative to the number of cameras that are being used. Static IP isn't needed.

Wife showing husband a picture of herself: "remember dear the camera adds 10lbs" Husbands reply: "Jeeze, then how many cameras did they use to take this picture???"

I would look at NASCAR info, microwave transmission technology. This is line of sight, NASCAR uses a helicopter as relay, you would need to know ranges you were going to have to deal with, off-road is not like a circular track, lol, in most cases, and can have many line of sight obstacles. WiFi doesn't like moving antenna signals RF is a possibility, TV channels, 2 to 135. You could have a 2 or 4 channel RF modulator in each vehicle, using 2 to 4 cameras. Each modulator/vehicle would be assigned 2 RF channels for up to 4 cameras. So each vehicle would be broadcasting camera signals on TV channels, power of that broadcast can be adjust for range to some extent, but there are legal limits. There is a 134 channel range so interference is not an issue. However the channels 2 to 12, VHF, carry the farthest as the lowest frequency

Mini cameras are fine but picture quality can suffer, try one first. The wireless part is where you will have the issues. Residential HD TX/RX has limited frequency range available so 2 maybe, 3 would be hard, and they are line of sight to work well, 50-70ft, they also "must accept outside interference" by Law, so could work fine one day and be troublesome the next WiFi or RF would be best choice for wireless, wired is ALWAYS best no matter what. You can run the mini-cam wires to IP encoders, then to WiFi switch, which connects to WiFi router at reception point. Or use something like a ZeeVee 4 channel HD modulator, RF. Modulator encodes the HD camera signals and puts them on a digital QAM(TV channel), like 2.1 and 2.2, or 66.1 or 66.2, you choose the channels to avoid local interference. You put an antenna on its output, so it is Broadcasting these 3 or 4 TV channels, same as mountain top antennas broadcast your local TV channels, just way shorter range, you can add amplifier to boost its range. Any TV within range could pick up these channels, small antenna on the back, since 2005 all TVs sold in North America were required to have digital tuners. You can also buy stand alone digital tuners for projectors or ??, ZeeVee sells those as well.

3G routers are not to expensive but................they may not work for you to Log in remotely, you would get alarms sent to you just couldn't check them out. To log into a security system from remote location requires you to have an internet address to contact and then the Local address of the Camera or Recorder. Problem with 3G routers is that the cell service Providers don't always keep IP address "alive" when system is in stand by, not actively using the internet. When you surf the web on a cell phone you are using an IP address assigned for that session, when you are done that IP address goes back into the pool, so no one could contact you using the IP address you were just using. DDNS is used so even when you don't have a fixed IP address the Device(recorder) can send pings to DDNS server and it will note the return IP address's to contact the recorder. You can then log in to the DDNS server and it will forward you to the Recorder using the last "pinged" IP address's from the Recorder. Cell phone providers change the IP address too often and often don't allow DDNS servers to get full return IP address, so no way to contact the recorder remotely. But I did find this UK website: http://www.3grouterstore.co.uk/3G/3G_CCTV.html Same as we would use over here for that, just in pounds and has local provider info.

Use 2 cameras, 12mm for the gate and 4MM for the yard, at each location.

"Mountains of video" ? You know that the newer systems/recorders use Motion detection software, and you set either the whole screen or just 1 portion of the screen to be the motion trigger. So you have a camera pointed at a glass door and windows that hundreds of people walk by every day, but it only records when door handle moves, for example, so only when someone enters or exits that door. And you can set pre and post time on that motion, if you set 5 second pre-record time then recorder always records that camera in a 5 second loop, when motion is detected then it doesn't record over that 5 seconds, it keeps it and continues recording until that motion detection is over, and then records what ever post time you want, i.e. 5 seconds So when you watch the play back you see some one walking over and opening the door then exiting or entering. And if you are recording full time then newer software has "watch here" for playback, so you can select an area of the screen then hit fast forward and it will stop if anything changes in the area you selected. Then fast forward again, and so on, like using Find on a computer document. "Mountains of video" still exist but digital recording has advantages.

I have not used avetech, but have used hikvision, their IP cameras and NVRs work well, indoor and outdoor models. Good prices and good accessories, i.e. wall, pendant and pole mounts DVR(digital video recorder) tends to mean analog camera use, but can mean either IP or analog NVR(network video recorder) means IP camera system Don't try to cover too much area with one camera, high resolution becomes low resolution fairly fast when you zoom in on a recording. If you want faces then put camera only focused on a doorway. If you want license plates then put a camera that is focused only on parking lot entrance and/or exit.

First thing, cameras are cheap, and so is recording space. Buildings, offices, and parking lots all have choke points, entrances and exits. Have cameras that cover general areas, but have other cameras just on doorways, and just on Windshield/license plate as they enter and exit. General area can show you where someone goes but even high res loses sharpness when you zoom in on recording, and "kinda looks like Bob Smith" is much different than "IS Bob Smith" In other words, don't try to do it all with 1 camera in an area, results will be under expectations, clients will get that, and the cost of a few more cameras is minimal in overall cost. There are PTZ cameras and software(autotracking) now that will do autonomous motion detect and zoom, these could be used to detect and record passers-by that are "casing the joint", and are good in Parking lots as well, for cars and pedestrians, obviously not meant for busy times in areas. Google: auto tracking ptz security cameras People that break-in will already know there is video surveillance and will cover their faces, so moot point no matter what the resolution. Good defensive locks and alarm system is best bet for that situation. As a side story, a doorway camera couldn't be put in front of the door, only off to the side, so only a side view of people entering. There was a door sensor on that door(pre-motion detection) Installer added a small red light next to the camera. It flashed 3 or 4 times after door was opened. People would see it out of the corner of their eye...........yup, and turned their head to look at what it was, full face view. Wasn't me but always remembered that clever design solution

Does the office have internet access? If so then I would look at two options. 3/4G sim card Router, uses cellphone signal to get on the internet Satellite internet. Both provide internet access, but at a monthly cost Bandwidth cost is what you want to research, and to do that you need to know what customer wants as end result. To view the cameras once in awhile or to review recordings(playback) once in awhile, i.e. 10 times a day Or do they want monitors in the office doing live camera feeds 24/7. If it's 24/7 then Point to Point should be looked at BUT(big but)........that is "line of sight" only. Both antennas must be able to "see" each other. If that is not possible then it won't work, at 1/2 a mile or 100 miles. Some guys in South America did a WiFi link at 173 miles(279km), 10ft dishes, but line of sight, so it can be done if you have the line of sight.

Talked with another elevator service tech, he said yes, a security company did install ethernet over power line adapters in 2 elevators in an older building he services. He said they seemed to work fine, or at least the installers liked the results, lol, he never saw the video images. Cameras were installed 6 months ago He services these elevators once a month and said as far as he knows all it well

Try canyouseeme .org This tests if your internet service provider is blocking ports you are using to log in from outside the LAN

A balun changes impedance not the signal itself, in this case it allows analog video to travel on a twisted pair vs coaxial cable, but it is still an analog signal not digital. If you are going to keep the analog cameras then you want a Video encoder, it converts an analog video signal to digital signal They come in single and 4 channel, the 4 channel encodes 4 analog camera signals into 4 digital signals then combines them on 1 cat5, which connects to switch or directly to NVR, the NVR will recognize this signal as 4 separate cameras. These encoders would be used where the coax cables terminate now, at the analog DVR, it allows you to use analog signals with network recorders. Or if the analog coax cables are together at certain places and you can get a cat5 cable to that location from the recorder or switch then the video encoder(s) can be placed there. If you are going to replace all the analog cameras with IP cameras then yes you can use existing coax cables for ethernet, but you would want to combine as many new IP cameras as practical in one area on a switch, then connect that switch to the NVR via existing coax using the above mentioned "ethernet over coax" units, as said it would be too expensive to do this per camera.

Thanks for the responses Was this an added cable to the mid-point traveler cable(reel type) or added on its own at mid-point. And approx. cost, just the cable part, not cameras or setup of those. Elevator company has to run any cables and were not keen on the idea of adding a wire. And yes newer traveler cables do now included a few Cat5 type twisted pair wires, stranded not solid, because of the repeated bending, but not older ones. Elevator company was not keen on adding a cable, said no. And generally speaking a new traveler cable, with extra wires, can run from $30,000 to $80,000 per car, installed. I guess no one has tried Ethernet over power lines in elevators before. I did checked with elevator company and they said I could try it, nothing against it in the safety code.