Answering the main entry door using a video intercom based on standards-based IP telephony–that is now real

Articles – From the horse’s mouth

T24 IP Video Door Station – Mobotix Website

My comments

The Mobotix T24 video entryphone (door intercom) system piqued my interest with this site because it is a device of its kind that is primarily driven by IP connectivity with access provided through a standard IP-based network.

This has allowed you to “release that door” to a world of innovation as far as these systems are concerned because there is the ability to build out a cost-effective and flexible door intercom setup for that apartment block or gated community.

Standard IP connectivity

Here, the resident or tenant can use an IP-based SIP-compliant hardware or software videophone (or a VoIP telephone for voice only) connected to their Internet service. It can be feasible for the door intercom to be connected to its own Internet service, which may be the case for tenants who want to let in visitors using their smartphone while out at the shops for example; or for use at the entry gates of a larger property or gated community, where you can’t affordably extend the main Internet service to those gates.

What the door intercom offers

Of course, this unit has all the features necessary for a door intercom of its class that would pique the apartment-block / gated-community market. For example, it has its own access control system for the associated door or gate, which can be driven by a PIN number or an RFID (near-field communication) card.

As well, by virtue of innovation, the system has recording abilities for logging what happened as well as a feature not often associated with the door intercom setup. This is a video-mail system that allows visitors to leave “while you were out” messages for tenants.

Questions worth raising

A major reality that will affect the door intercom over its lifetime is how the unit is set up as far as the equipment installed in the resident’s or tenant’s unit is concerned. This is more so as VoIP telephony becomes mainstream with triple-play services, VoIP business telephony and cut-price long-distance VoIP telephone services coming on the scene.

There needs to be knowledge about how this unit can be provisioned in to IP telephony setups especially as different residents or tenants, with differing technology skill levels, move in to and out of the units over the development’s life. It also includes enrolling additional handsets to the intercom so that users can answer the door from the device they feel comfortable with and are near.

Similarly, there needs to be support for a “function key” setup for devices like this when they are integrated with standards-based IP telephony setups so that one can know which button to press to unlock the door for example.

As well, there should be knowledge on how the residents or tenants can get at the messages that are left on the video-mail system while visitor-resident privacy is assured. This also includes support for and integration with standards-based email or unified-communications setups.

Conclusion

The Mobotix T24 IP video door station has set the cat amongst the pigeons as far as IP-telephony is concerned. Here, it has defined a particular device and usage class that will become increasingly real especially as residents or tenants in multiple-tenancy units and gated communities welcome the arrival of IP-based telephony technology.

It also allows further innovation to take place with these devices, such as improved security and aesthetics and the potential to improve the user experience for both the resident and the visitor.

Product Review–Cooler Master NotePal Infinite Evo laptop cooling pad

I am reviewing the Cooler Master NotePal infinite Evo laptop cooling pad which is one of may laptop rests that are equipped with a forced-air cooling subsystem. Here, these units use this fan-forced air to cool the underside of the laptop which, in a lot of older and “thin-and-light” designs, can become very hot. An example of this was the HP Envy 15 laptop that I had previously reviewed on this site. Here, this unit wouldn’t take long to become uncomfortably hot during operation.

This situation may lead to the computer being uncomfortable to use after a significant amount of time and there can be a chance of heat building up under the computer, thus causing overheating and a shortened lifespan for that laptop.

Cooler Master is a name primarily associated with the manufacture of aftermarket computer cooling systems for desktop PCs. These are usually in the form of CPU fan subsystems or add-on case fans that are used as part of tuning-up “LAN-party” PCs for maximum gaming performance, similar to “hotting up” cars for maximum street performance.

Cooler Master NotePal Infite Evo laptop cooling pad

 

Recommended Retail Price: AUD$59

The unit itself

Cooler Master NotePal Infinite Evo power input and fan controls

USB input, Fan controls and DC input

This NotePal Infinite Evo is based around an aluminium panel with rubber strips to hold the laptop on. This panel is positioned ant an angle and has two small fans underneath it to create the air draught under the computer. This is the reverse to the typical fan heater which draws the cold air in the top and forces the heated air out the heater’s front grille. Both of these fans are variable-speed fans that are adjusted by use of a thumbwheel on the left side of the unit.

Cooler Master NotePal Infinite Evo USB hub connections

USB hub connections

This is powered through a USB connection to the host laptop computer and there are 3 USB 2.0 ports on the right side of the laptop cooling mat.This is unlike most of the cheaper laptop cooling pads that don’t have a USB hub, thus leaving you without a USB connection when you use them. Thee is also a 5V DC power connection for use with a 5V power adaptor if you need to run this unit as a self-powered USB hub. Here, the external power supply would be required if you were to connect the typical 2.5″ USB hard disk to the unit’s hub while using it as a cooling pad.

Cooler Master NotePal Infite Evo laptop cooling pad intake grilles

Rear-mounted intake grilles

The air is drawn in through large grilles on the back of the unit and expelled through a small air scoop just under where the computer sits.

Usage

Judging from how I handled the Cooler Master  laptop cooling pad, I noticed that it was very well built. There was nothing loose about it and the controls operated properly and smoothly as on good-quality equipment.

The NotePal Infinite Evo mat is lighter than the typical 15” laptop which makes it easier to transport with the laptop. There are large rubber pads to prevent the pad slipping across table tops and protect those polished wooden dining or coffee tables from scratches.

During operation, there is a slight buzz from the fan at high speed, which is well below typical conversation level. I have observed this with a regular laptop being placed on the cooling pad. I have checked for excessive vibration while the fan is at the same high speed and there wasn’t any of that vibration.

The USB hub works according to the standards for a USB hub without the need for driver CDs. Remember that it is a bus-powered USB hub unless you connect a 5VDC power supply to the DC-IN jack on the left of the unit.

Points Of Improvement

One point of improvement that I would like to see is a version that suits subnotebook / ultraportable computers and is big enough for them, without sacrificing the build quality and quiet operation.

As well, Cooler Master could provide an external power supply kit as an option for the NotePal Infinite Evo units so they can work as a self-powered USB hub when used with USB hard disks or as a charging bar for mobile phones.

Conclusion

I would recommend that people who find that their laptop computer runs hot too easily during games or graphics-intensive work should purchase the Cooler Master NotePal Infinite Evo cooling pad. It does the job without intruding on one’s computing life and is designed to last a long time. As well you don’t lose the functionality of the USB socket it is connected to.

Parents get children back after testifying via Skype

Article

Parents get children back after testifying via Skype | The Age Technology

My Comments

The courts of justice are again being used as a proving ground for today’s Internet-driven technology. This time it is the use of Skype in a child-protection case occurring in the USA concerning immigrant parents who were deported back to Mexico. Here, the US-based court had used Skype as a tool for taking the Mexico-based parents’ testimony due to cost and logistical reasons. Video-conferencing has been used in the courtroom for a lot of cases such as high-profile crime trials where it is desireable to keep a high-risk defendant or “supergrass” confined at a secure jail through the hearing. These setups typically use a direct link between known locations like a courthouse and a major prison, or an expensive-to-hire videoconferencing setup for temporary arrangements.

Of course, the Skype-based solution had facilitated the use of cost-effective equipment that didn’t need intense technical help to set up. This has allowed the parents to prove to the court that they were fit and appropriate parents for the children concerned even though they were limited in funds and based in Mexico.

This case could benefit other civil, family and similar cases in most jurisdictions where a key participant or witness is separated from the main court of hearing by significant distance or ill-health. Typically most of these situations would require an expensive video-conferencing setup which may not be feasible in most rural areas and the setups would require a lot of specialist time to set up and run. Or they would require the lawyers representing both sides of the case to travel out to the witness’s location and make a video recording of their testimony which doesn’t have the immediacy and constant judicial oversight of the live testimony.

Here, a Skype setup on an ordinary 15” or 17” laptop, like most of the laptops reviewed on HomeNetworking01.info, connected via a broadband link can be established by most computer-competent people. These same setups could be transported in the typical briefcase, laptop bag or backpack as cabin luggage on a flight or in the boot (trunk) of a typical car.

One step of progress I would like to see for Skype in the courtroom as a remote-testimony tool is for a similar situation to work with a criminal trial, especially one heard by a judge and jury. In this situation, there would be a requirement to test the case beyond reasonable doubt and these cases may be more exacting than the civil case mentioned above.

Vaucluse (84) in France working towards next-genaration broadband

Article

Le Vaucluse veut se doter d’un réseau très haut débit | La Provence (France – French language)

My comments and information obtained from this article

Vaucluse, a department in the Provence area of France is known for features like Avignon with that famous bridge. But it has a sizeable amount of rural space with its eastern half being mountainous and 17% of the population in the rural areas. Of course, there are the 5 major urban hubs being Avignon, Orange, Carpentras, Cavaillon, and Apt.

What is relevant to this site is that 5 of the exchanges in that department are fully dégroupé – served by all the competing Internet service providers independently.This is part of a digital divide that exists through this area with not all areas having a broadband service that is “up to snuff”.

The département’s local government have realised what is going on in this area and are to work on the issue of proper access to real broadband, both ADSL and next-generation service. Here, they will do a stocktake of the existing infrastructure and identify areas that need the work.

They reckon that this work will take 20 years for next-generation service to cover this département. The UMP party who are in opposition consider this as being too long because of the time that the technology takes to evolve in the Internet.

Of course, there are the key problems that beset rural and outer-urban areas when it comes to telecommunications, like ageing or derelict infrastructure. These have to be looked at as much as the existence of service at each of the exchanges. This stocktake may factor these issues in and assess the quality of this infrastructure.

Good marks to the Vaucluse local government in France in tackling this problem of adequate Internet service in rural areas. Here, this is an example of UK and France achieving a lively competitive and accessible Internet service for all.

IEEE P1905–A standard to make the heterogenous small network easy to manage

Articles

HomePlug® Powerline Alliance Announces Support for IEEE P1905 Convergent Digital Home Network Standard – HomePlug Powerline Alliance

IEEE P1905 Standard page

My Comments

Realities

More home networks implementing two or more media backbones

As the typical home network evolves, there will be a time when another interface type will be implemented in that network.

There are two examples of this common situation. One is where a person who has run an Ethernet network from the network-Internet edge to their computer decides to “go wireless” with their laptop computers and upgrades to a wireless router yet maintains the Ethernet connection for desktop computers. Another example that is increasingly common in Europe and will become so with the prevalence of IP-delivered TV would be a household that has a Wi-Fi network for the laptop but implements a HomePlug powerline network to serve the set-top box or IP-enabled TV in the lounge.

Infact I have advocated these kinds of network setups in this site in order to encourage a flexible home or small-business network that suits all situations that are thrown at it. This includes handling radio-difficult environments like double-brick walls or foil-lined insulation that can exist in many houses.

Network endpoint devices with multiple network interfaces

An increasing number of network-endpoint devices like computers, printers and Internet media devices are being required to support multiple types of network interfaces. This may be provided out of the box; or the user may have to install a hardware network adaptor for a particular network interface in to the device even though the device has an integrated network adaptor for another interface.

A very common example that I have seen for myself is laptop users switching between a wired Ethernet connection and a Wi-Fi wireless connection. Typically the laptop user who is getting used to the “New Computing Environment” and what it offers will plug their computer into the router’s Ethernet socket while they work at their desk; then disconnect from the Ethernet socket and “go wireless” when they want to use the laptop in other parts of the house. This typically can cause problems due to network storms or switchover problems; and often requires the user to disable or enable Wi-Fi on the laptop as they change connections.

Similarly, most of the network-enabled multifunction printers that I have reviewed at HomeNetworking01.info are equipped with an Ethernet socket as well as an integrated WPA2-secured Wi-Fi interface. This is becoming very common with most network-enabled media players, especially “smart TVs” and BD-Live Blu-Ray players.

Setup and management difficulties with these networks

These networks can yield their fair share of difficulties as users have to set up each network segment or device for secure reliable operation. This can include initial provisioning needs that a media type has like SSID and WPA-PSK security keys for Wi-Fi segments to management of segment-specific problems like Wi-Fi reception issues.

It will become more difficult as advanced networking requirements such as quality-of-service, synchronous media streaming, multiple logical networks and robust security are required out of these small heterogenous networks.

In the case of the devices, it will include making sure that the device works with the best network interface available even if both interfaces are physically connected. The most common example of this is making sure that the Wi-Fi-enabled laptop or printer works on a wired link if connected to the network via that link and works with the Wi-Fi link in other cases without the need for a manual switchover procedure.

What is this new standard intending to provide

You may think that there are standards out there to help with managing a computer network but most of these standards work to a particular network media type. As well, a lot of them require management by an IT team, something which few households or small businesses can have on hand all the time.

One major benefit is simplified media-level control across different media types on the same network. This isn’t achieved through the use of higher-level configuration routines managed by IP or application-level protocols like SNMP or UPnP, but these protocols can be adapted for this standard.

There will also be a focus on end-to-end performance such as allowing a device to choose the network interface that provides best throughput and quality-of-service. It can also allow “end-to-end” quality-of-service to be achieved from the network-Internet “edge” to the end device for IP telephony, multimedia streaming or Internet gaming.

Similarly, there is the ability to manage the media-level network security and energy-management needs that are required for the network in an easier form. This includes coordinating device wakeup across different media types so that a device can exist in an energy-saving quiescent mode yet “come to” when someone else on the network need it no matter how it is connected.

This standard recognises the reality that no one network type suits all needs, different horses for different courses.

Here, a typical setup may use Cat5 Ethernet as a high-speed backbone between floors or across the house, a HomePlug AV segment as a high-reliability wired “no-new-wires” setup for temporary applications and a Wi-Fi wireless segment that is primarily for portable devices.

The main focus that will be achieved is that bridge or switch devices that work across the multiple media types can perform these jobs more efficiently without needing to use higher-level protocols to achieve this goal; and be assured that the requirements for the network data are met as the data travels these devices.

Unanswered questions

Support for and management of VLAN networks

An unanswered question about this standard is whether it can support a VLAN network. This is a network that hosts multiple logical networks across the same physical infrastructure. It would be relevant in the small network space for “guest / hotspot networks” and IPTV setups where end-to-end content protection is required.

Features that may be considered of importance in this regard include replicating VLAN setups across the network as infrastructure devices are added to the network. An example of this could b to use an extension access point to “build out” a Wi-Fi network yet maintain the “guest network” and the “private network” as separate entities with separate SSIDs.

It also includes multi-tenancy-building environments where there is common “LAN” network infrastructure like cable runs that exist to interlink units (apartments, shops, offices, etc) or multi-SSID access points installed to service common areas (common gardens, swimming pools, food courts, etc). Here, it would be required to establish a VLAN interlink between two or more premises under the control of the same entity or establish a link to a common multi-SSID access point with the same SSID and security parameters as your main access point.

Wi-Fi devices and their operating mode

Another questiom that may affect the management of Wi-Fi devices is what kind of operating mode the device should be in. This is whether it is a client device or an access point; or to implement “direct link” or WDS or newer-standard network repeater functionality.

This would cater for an increasing number of “multi-function” access points which was a trend brought about by newer firmware versions for the Linksys WAP54G wireless access point. Here, the access point could be set up to be on the end of a direct wireless link, or be a client bridge for an existing Wi-Fi segment, a Wi-Fi repeater as well as being an access point.

This standard could provide support for a wireless endpoint such as a "multi-function” access point or the Wi-Fi functionality in a printer or other device to work as a client device or as an access point. It could then allow for these devices to quickly serve as infill access points when they are connected to a wired backbone after working on the Wi-Fi network.

Conclusion

At least the IEEE P1905 standard will make some effort towards making the establishment, management and development of the typical heterogenous small network become an easier talsk that is less painful.

HomePlug as part of a home-vehicle network for electric and hybrid vehicles

Articles

Your BMW wants email; the Merc wants Netflix | ITworld

HomePlug GP Networking Specification | The Tech Journal

My comments

The HomePlug Powerline Alliance have cemented the “Green PHY” standard for energy-efficient powerline networking and energy management in stone,

Now the major German vehicle builders have defined a power connection standard to connect their electric or plug-in-hybrid vehicles to the mains power supply for charging. This includes using these HomePlug standards for transferring required data between the vehicle and the host power supply for charging-process control, metering and other similar applications.

The core benefit is to achieve a successful level playing field for connecting these vehicles to the “smart grid” for overnight and rapid charging. This also includes particular requirements like costing of energy used by “guest vehicles”, road-tax implications as well as grid integration such as off-peak charging or vehicle-to-grid setups for offsetting energy peaks.

This also facilitates IP linking to the Internet service via this connection thus allowing for some possibilities beyond the “obvious Internet applications”. One application I have often thought of in this context is the ability to integrate the vehicle’s infotainment system in to the home network.

Here, it could lead to synchronisation of maps, contact lists and media files between the home network and the vehicle or the ability to simply benefit from the data held on the vehicle’s infotainment system in the home network. This would be the networked equivalent of bringing a tape or CD that was in the vehicle’s glovebox or sound system in to your home so you can play it on your music system there.

At least there is an attempt to achieve a level playing field across the vehicle industry to support electric vehicles while catering for flexible setups.

GSM Mobile Telephony has now turned 20 this year

Article

GSM turns 20 today, still rocking the world — Engadget

My Comments

GSM Mobile telephony has now turned 20 this year and has become a technological milestone in itself as far as “on-the-go” mobile communication is concerned,

Here, this service had brought through a highly-reliable digital transmission system which could allow many users to use mobile phones in a given area. It had extended the mobile phone beyond voice towards data-driven activities like SMS text messaging and concurrent packet data transmission.

Infact SMS had even brought about a language of shorthand slang known as “textspeak” that ended up as part of email and instant-messaging culture as well and had made the pager redundant. Here, we now see teenagers and other young people working their phones to frantically tap out a message with one hand the moment they hear that phone beep to indicate a text had arrived. This technology had been taken further with MMS which allows photographs, audio or video clips to be sent this way.

The GPRS packet-data system has become the foundation stone of the mobile Internet, allowing for the phone to become an mobile email client and Web browser. This has been emphasised more with technologies like EDGE.

This technology has brought about cost-effective handsets and phone services with a sense of service portability through the use of SIM cards. Here, a person could upgrade to different handsets or “rope in” another handset like a loan phone to their service by transferring a SIM card between these handsets. It also allowed carriers in a competitive market to strut their stuff by offering service that is affordable to most people.

Infact GSM has mad the mobile phone become a mature ubiquitous technology that is available to all. It even has put the traditional landline phone and the payphone “on notice” as far as young users are concerned.

Therefore I would consider the GSM mobile telephone system a milestone to the connected lifestyle.

Happy 20th Birthday GSM Mobile Telephony

Another attempt at the “smart cordless phone” for the regular telephone service

Article

DECT-Telefon mit Android: Archos 35 Smart Home Phone – COMPUTER BILD (Germany – German language)

My Comments

I have previously covered various attempts by landline-telephony carriers and electronics manufacturers to restore faith in the classic telephone service. This is more so as younger people are thinking more of the mobile phone as their main telephone device and ditching the classic landline telephone.

The two main examples of this was a DECT cordless telephone handset which worked on the Android operating system but looked like an early-generation car phone as well as the Telstra T-Hub with a separate screen which linked to the home Wi-Fi network.

Now Archos have taken this further with a DECT cordless telephone that is styled like the typical smartphone. As well, they have run this phone on the Android platform with the ability to download software to the phone through the Wi-Fi network. They even have run TuneIn Radio, which is an Internet-radio client, on this phone so it can offer the same Internet-radio experience as the T-Hub’s Internet-radio client.

Archos have emphasised the DECT cordless-phone setup because most of the Internet-gateway devices that are part of a fully-featured “triple-play” service in Europe, especially the Germanic countries (Germany, Austria and Switzerland), can work as VoIP base stations for these handsets. This allows for centralised management of the handsets and for the assured quality-of-service that DECT offers.

It will be interesting to know who else will try to run with a “smart household phone” system to keep the classic home-based voice telephone service alive and relevant in the mobile world.

Facebook’s chat facility now approaching Windows Live Messenger and Yahoo Messenger but a long way to go

Articles

Facebook unveils video chatting, thanks to Skype | The Digital Home – CNET News

Facebook intros group chats, new chat tool design | The Digital Home – CNET News

Facebook Reveals Video Chat Powered By Skype | Mashable

My Comments

Facebook’s chat functionality has now become a mature adult now that it offers group chatting and is about to offer Skype-powered videocall functionality.

What I do like about this is that rather than reinventing the wheel as Windows Live Messenger and Yahoo Messenger did to develop their video-chat services, Facebook have taken a sensible path. Here they have implemented Skype technology to power their video chat functionality.

The main reason I see this is going on is because Google are encroaching on Facebook’s territory with their Google+ social network service and Facebook have to provide a reason to keep their userbase loyal to their social network. It may also affect Skype’s native userbase who may use Facebook as a static notification tool while using the Skype client for text, audio and video chatting.

Native support

It may require Facebook to provide native support for this new level of chat functionality in their client-side applications. This is especially important for people who have used desktop instant-messaging services like ICQ or Windows Live Messenger and like the ability of these programs to operate in the background while they undertake their main activities.

Similarly, it could support the mobile, VoIP and “big-screen” platforms and take advantage of what each of these platforms can offer, such as “big-screen” video conferencing on larger TV sets for example.

This goal can be achieved more easily through the use of Skype code with Facebook interlinking and could be implemented in devices and platforms that have either of these functions written in to their base, such as the “smart-TV” platforms.

How can we differentiate the Android tablet further?

Article

Vizio VIA – Tablets with special features (photos) – CNET Reviews

My Comments

Previously, I thought that there would be very little that manufacturers can use to differentiate their Android tablet computers from one another. Typically, this will end up with the tablets working in the same way and having some sort of cosmetic difference.

Here, the customer would be able to think of a 7” model for the coat pocket or a 10” model for the briefcase or coffee table. They may be able to choose between the models that have Wi-Fi only or models that also have built-in- wireless broadband; as well as different memory capacities.

But some companies have worked further on this by making sure some of their tablet computers are able to stand out from the pack. In this article, Sony had a unit that used two screens in a similar vein to the Nintendo DS handheld games console while Vizio ran with a model that has an infrared emitter and universal remote-control app which would allow it to earn its place on the coffee table. As well, Panasonic had run with a ruggedised tablet that suits those environments that may yield rough treatment to the typical tablet device.

What I have seen of this is that there is a chance for manufacturers to try new features for the Android tablet platform and use these features to make their models different not just cosmetically but in a functional way.