Daryl733

https://www.google.com.sg/search?q=Pelco%20NVR%20Default%20Password

Could be the system record motion for a specific time period and then stop recording and wait for next motion event to trigger. Try setting it to continuous recording and see if the the problem reoccurs. Other possible issues, e.g. Harddisk speed/connection bandwidth issues (harddisk/system can't cater for high bandwidth HD multiple cameras recording and playback at the same time.) - Try doing it asynchronous or just 1 camera active to test it out.

Did you check your power supply ? It could be the power supply issues.

It all comes down to are you going to use 720P cameras or 1080P cameras. If you are not going to use 1080P cameras, then just get HG. If you are going to use all 1080P cameras, then get HQ. If you are on budget and still want to go 1080P, 12-15fps (half frame rate) still give you a pretty smooth video. Used to set recording at 12-15fps previously when dvr are using older compression technique to reduce storage requirement. Now most DVR using h.264, setting it at half frame rate doesn't really give much saving in filesize anymore. Just remember, although higher the resolution the better, it also means you got to cater larger storage to store the higher resolution video.

You mentioned you are doing research, so I thought you are looking for papers on the subject matters. As for the product, it's not about the camera. It's the system the camera is connected to. Or plugin the cameras supported. https://www.milestonesys.com/contentassets/d4595aa1dc4a49c58f33f8d97db8d3c6/ganetec-bintelan-milestone-specs.pdf https://www.etpl.sg/innovation-offerings/technologies-for-license/tech-offers/2118 (From Singapore ) http://www.noldus.com/facereader/facereader-6-automatic-facial-expression-analysis-and-emotion-detection I think it all boils down to what's your budget, such features doesn't come cheap at the moment.

If you had not bought from local authorised distributor but from online parallel importers, it's not advisable to ever upgrade your firmware. Those are mostly china set that are meant for local use, the supplier had hack the cameras to upload them with international firmware. Upgrading the equipment firmware will either brick it or render it to support only Chinese language interface.

Hello, If you are deploying multiple system over a period of time, you'll have to look into backend integration right from the start. You won't want to use 5 different CMS software at your HQ to monitor your various sites. It'll be messy, and it'll takes more training to teach whoever is in charge how to use multiple software/system.

You'll have to use the Software that comes with the DVR. If you mix different brand of DVR, you'll have to use a multiple software for that. Not all system support displaying snapshots of motion. This is part of system design if your customers have plan to deploy systems in different time frame. Encountered vendors who use mixture of brands and models for same customers, basically because different distributors have different promotions at different time, so whoever is cheapest, they'll use it at the point of installation.

If you required replies, you should provide more details. What brand/models of equipment, analogue or ip system. Otherwise how to reply you ? If it's an ancient analogue system using tape, the tape could be manipulated by recording an older clip over a couple of times. If you are using IP cameras that ftp to a NAS or record using a PC that store the files in sequential files on the system, all it takes is to delete the file and replaced it with a couple of older files and rename them to the deleted files. Here are some read up if you think the employee is hacker graded, but if that's the case, most likely he won't be working there for long as well. Bank/Casino heist might be more lucrative. Think Ocean XXX.... http://www.wired.com/2009/07/video-hijack/ http://videojak.sourceforge.net/ Most likely it's a recording error. Check the DVR or the HDD. Could be system hung during that period. The obvious explanation is most often the correct one in most cases. If you suspect it happens on regular basis, easiest way is to install a analogue/digital clock in view of the camera view. The time would correspond to your recording date/time if both time are set correctly. Install a digital one with Date as well if you are afraid the employee uses previous/other day recording to overwrite the data.

If DMZ can't work, that means either your ISP block certain port, filter certain traffic. You got to check with them. I assumed you tried it on your LAN and it works. Otherwise if it can't even work on LAN, you got to check the NVR. It could also be your router port forwarding/dmz function got issues. Experienced that before with a couple of router. Interface shows forwarded, but the ports never get forwarded.

Your camera or the cabling is faulty. Get it check out. How come no one suggested putting a separate IR illuminater in a separate location and disabling the camera's inbuilt IR (or chose a model that doesn't have ir filter and ir inbuilt ? In that case, you can even hid the camera, no light from there. IR Light source totally from another source which could be in a separate location. Also, choosing those wavelength can't be seen by human eyes is no help to conceal the camera location. NVG or another IR camera would pick up the IR light light a bright torchlight shining your way (since we are going the direction that the bugler is through). Some HP camera will also pick it up depending on their camera design if it comes with the ir fliter inbuilt. Also, camera can't see what is conceal. So if intruder wear a hood/mask to conceal the face, you can't see through it as well. What about intruder cutting off the power supply ? Then you got to put in UPS. What about the intruder removing the DVR/Recording device ? Then you got to either put strong box to prevent them from doing so. What about the intruder cutting through strong box and removing it or set fire to the system ? Then you got to provide for alternate recording site, maybe through internet. What about intruder cutting your internet line ? Then you got to have multiple WAN connection, maybe backup with 4G conncetion. What about intruder using a 4G Jammer to jam the wireless network connection ? ...... The list goes on. Anything is possible, what's your budget ? If you are looking into security, then you got to consider the 3DR of security. There have to be a response to the intrusion. Anything else is just to deter, detect and delay for your response. If there's no response, no matter what you put in, they can be defeated given sufficient amount of time.

The Camera 01 is the Text Overlay setting in the camera. If you can't remove/change that from the NVR, login to the camera and do the changes there.

The Mic have to be connected to the IP Camera's Audio Input. Depending on which model of IP camera, you might need to select type of mic you are using, i.e. Line Mic (Powered Mic with preamp) or just unpowered mic. Connect directly to the IP Camera interface and troubleshoot that first before doing it through the NVR. At least you can isolate the issues.

I think you need to provide more info, e.g. brand, models, etc. Or some photo of the equipment. Else no one can help you. Alternatively, engage someone to reconfigure everything for you.

This is what I normally recommend for throwaway temporary solution. Get a dashboard camera. They are pretty cheap nowadays. Some of them support 2 cameras, 1 integrated with the unit, the other vie a cable (supposedly for back windscreen). Use whichever type that suits you, there are tons of choices. Put in SD card, set it on motion recording. They are small, easy to hide. If power source not available, get a power pack (those that you use to charge mobile phone on the move). Get 1 with capacity that fits your need. Or get 2 so you can charge 1 and swap the other one. When your mail go missing, just take the SD card and playback.

There are systems that can analysis facial expression and derive various information from that. Nothing to do with Thermal Cameras. Just normal Visual Light Spectrum Camera. If you are doing research, here's a couple of papers. http://worldcomp-proceedings.com/proc/p2012/CGV2255.pdf http://www.dailymail.co.uk/sciencetech/article-3385374/Creepy-study-uses-CCTV-cameras-track-people-FEELING-Facial-recognition-used-monitor-students.html Just google for Facial Expression CCTV. There's also new system that are based on AI, Machine Learning instead of using preset parameters. This means that overtime, the system will detect suspicious activities based on past identified activities rather than hard rules that have to be defined into the systems. One of the local company here is doing a trial, but I can't find the link for it now.

Try putting your DVR in DMZ. i.e. Configure your Router DMZ to your DVR's IP. Basically it means forward ALL PORTS to your DVR. Test if you are able to see. If you are able to see, check the ports required for your DVR again. Try to use the DVR default ports instead of changing them. Sometimes for certain badly written firmware might not allow ports to be changed. They hardcoded the ports in the firmware, and what you see on the interface might not be the actual port used by the DVR. If you are able to see using default port, then try changing the port to whichever port you want and try again. If it doesn't work, try other ports. It might be the reason above, which you may just want to stick to the default port. Sometimes, it might also be your ISP blocking certain ports, or filtering certain kind of traffic. Sometimes, some ISP might assigned you a private IP instead of a public one and route all traffic through their gateway. This means the connection is only good for surfing. You can't use it for server. In this case, you might want to use the P2P function of the DVR if it comes with it.

NVR and NAS are designed differently. Some NAS have addon software to allow it to function as a NVR. For those purpose, it'll be also called an NVR rather than NAS. Without addon software, the cameras have to push recording to the NAS. (On the other hand, NVR PULL feeds from Camera for recording). Most camera do it vie FTP. This means that the recording won't be managed. You'll have to identify recording based on filename rather than a purpose design interface to search for recording. Deleting of old recording will have to be done manually or vie scheduled scripts. Some cameras allow the NAS folder to be mapped to the cameras and recording done on it. But most often such mapping results in dedicated partition on the NAS per IP camera/NVR. Multiple Devices streaming to the same NAS with multiple partition mapped on a single drive is not a good idea as it'll mean the hdd head is travelling all over the hdd platter, might reduce the lifespan of your hdd. If you are using FTP, you can shut down the NVR and let the cameras their recording to the NAS. But you'll need to managed the recording on your own. If you are using NVR, some NVR allows mapping of a network redundant drive. It'll allow for the NVR to mirror the recording on the NAS. However, the NVR will need to be operating for recording to take place. If you shut the NVR down, NAS will not work. Why not just install 2 NVR ? You can connect the cameras to multiple NVR provided that the cameras support the number of simultaneous connection and also the network bandwidth is sufficient. In this case, each NVR will independently pull a separate feed from the cameras for their own recording, and each of the NVR can be shut off independently without affecting the others. Cameras will have to be connected to a independent network though. i.e. if you connect the cameras to 1 of the NVR POE ports, when you shut down that NVR, you'll be cutting off the power and network connection to the cameras and the other NVR will not be able to connect to the cameras as they are all disconnected and powered off.

Sounds right. Have fun installing.

It depends on the DVR. Some can use the local HDD as a buffer just in case your network is down and they can't record to the SAN. Some design it to record sequentially. e.g. 1 storage full move on to the next in the list. So in this case, you'll not want to put in a HDD in your DVR. Consult the DVR manual/vendor.

There's a few submodels. (W) is the submodel with wireless. There's no should or shouldn't. It depends on your requirement and system design. You'll need to know the pro and cons as well. Normally we won't use it unless there's no other way. Wireless means that the the signal is transmitted wirelessly. Doesn't mean the camera required no cable at all. Just take note that that nuclear batteries are not available in the market yet. You'll still need to run power cable to power up the camera. (A lot of customers think that wireless means totally no cable ) If the power point is near the NVR, might as well run cable. A typical wireless network range is up to around 35m with line of sight without any blockage. Use some wifi scanner to checkout the numbers of wifi signal in your area. Depending on where you live, sometimes there are over 20-30 wireless network overlapping (at least we have it here in our densely populated city). 2.4Ghz only have 12-13 channels. Most cameras wifi doesn't support 5Ghz. So your wireless network might not be as good as you think it is to constantly stream a video feed without breaking. Then of course the camera position must have a good connection to the wireless network. Otherwise you'll need to invest in additional networking equipment to extend the range and also ensure the stability of the wireless connection. These are some of the consideration. Pretty sure everyone encountered situation where your phone/tablet/laptop lose connection and you'll need wait a while for it to get connection back. Sometimes you'll need to off and on the device/wifi setting for the device to get back the wifi connection. Now imagine that with your Wireless Camera. From SI perspective, there are also other numerous consideration. That's why down here, no SI do wireless camera installation on a normal basis for normal cctv installation for home or small offices. Most people who install wireless cameras do it diy and know how to troubleshoot when problem occurs, e.g. customers change wireless router and they need to either match the new wireless router wireless setting to the existing cameras setting or vice verses, etc. Too much support issues for SI as there's a things that's beyond our control.

Why not just get a NVR instead ? It'll do the same thing as well. Simplest and most reliable solution as they are designed for this purpose. Price differences not that much depending on what you are comparing with.

It depends on how each manufacturer implement their P2P. Some does it the way you say, and some never hand over the link and maintain it's intermediary role throughout the whole connection. AVTECH wanted to (not too sure if they actually implemented it as I didn't really use their P2P setup) charge users using P2P according to the amount of Data they use while viewing the cameras using their EaZy Networking. If they did that, it would means they maintain the connection in order to log down the amount of data used. Using P2P requires the manufacturer to provide the servers. Unless you are using big brand reputable manufacturers, some of these OEM/smaller players disappear after a short time. Even big brand reputable manufacturer also sometimes stop providing certain services comes bundled with their products after a period of time. When that happens, the system will not work. You'll need to reconfigure everything again. Of course DDNS will also encounter the same issues if the DDNS services stop. Be if from the manufacturer or DYNDNS/No-IP/Various others. But at least when that happens, it'll be easier to resolved. Even temporary solution such as finding out the current IP and keying it manually to view will work. P2P won't. I'm not saying don't use. I am just saying I would avoid using that as the main configuration method. I am coming from a SI perspective that I have to support customers after the installation process. I want something that I can control and troubleshoot instead of having to rely totally on manufacturer to do that. Some manufacturer are not responsive at all. We had encountered manufacturer's DDNS Server (Big Brand) that went down and we noticed that as calls starts coming in from our customers to say they can't view. Tried contacting the Taiwan manufacturer and it took almost 1 day before they got back to us acknowledging the issues. But at least on our end, we are able to isolate the issues and recommend alternative temporary solution to customers before the manufacturer come back to us. You won't be able to do that with P2P. Server down can't view ? Too bad, wait for server to come back online then view.

Just change the passwords of the default users. I checked my Dahua unit, no problem with doing that. But I am not that familar with Dahua brand, only got 1 testing unit of Dahua to play around.

Cloud saving is as stable and reliable as your internet connection + the cloud service provider. For HD multiple cameras streaming, you'll require a sufficient bandwidth, normally at around 3Mbps per camera. I'm not sure about the connection speed/type available in your country and what construction site are using. Most of the time such system (e.g. 4 cameras of 3Mbps each require a constant upload bandwidth of around 12Mbps) require a bandwidth which only a fibre connection here can provide (we have 10Mbps to 10Gps fibre connection here). ADSL can't provide that kinda speed unless you do multiwan (Fastest Upload Speed our ADSL can do here is ard 1Mbps). Anytime you got a slow bandwidth, you'll start missing recording. Then you'll have to explore equipment with Edge Recording features. But you'll still need more bandwidth than what the cameras are using so that missing recording during period slow connection speed or disconnection can be upload on top of the current recording when the sufficient bandwidth/network connection resumed. Cheaper and easier solution is to just use normal local recording system, and if you are afraid of the recorder being destroyed, do a concurrent recording using the CMS provided by the equipment as well over the internet. Most equipment support that. Any incident you'll have a high quality footage onsite. If the equipment is destroy, you'll have a offsite copy of the recording if the internet connection is functioning properly at that time.