Tillie Doyle
Personal Area Network (PAN) is a computer network that connects devices within the range of an individual person, typically within 10 meters (33 feet). PANs can be wired or wireless and are designed to serve a single person or a small workgroup. Wireless PANs (WPANs) are carried over low-powered, short-distance wireless network technologies such as Infrared Data Association (IrDA) protocol, wireless universal serial bus (USB), Bluetooth, ultra-wideband, or Zigbee. Wired PANs, on the other hand, use wired technologies such as USB, FireWire, or IEEE-1394 high-performance serial buses. PANs are commonly used in home and office environments, providing flexibility and efficiency for interconnecting devices within a person's workspace.
| Characteristics | Values |
|---|---|
| Type | Wireless PAN (WPAN) or Wired PAN |
| Functionality | Wireless or wired connections for devices within a person's immediate vicinity |
| Range | Typically within 10 meters (33 feet) |
| Use cases | Home, office, small network areas |
| Devices | Computers, smartphones, tablets, printers, webcams, external hard drives, speakers, video game consoles, etc. |
| Technology | Infrared Data Association (IrDA), Wireless USB, Bluetooth, NearLink, Zigbee, etc. |
| Reliability | Less reliable than wired networks for managing multiple connections |
| Flexibility | High flexibility and efficiency for short network ranges |
| Cost | Low setup and maintenance costs |
| Portability | Easy to set up and portable |
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Wireless PANs (WPANs)
Wireless Personal Area Networks (WPANs) are a type of Personal Area Network (PAN) where the connections are wireless. A PAN is a computer network that connects devices within the range of an individual person, usually within 10 meters (33 feet). PANs are designed to serve a single person or small workgroup, and are centred around one person's workspace.
WPANs function wirelessly and are carried over a low-powered, short-distance wireless network technology, such as Infrared Data Association (IrDA) protocol devices, wireless universal serial bus (USB), Bluetooth, ultra-wideband or Zigbee. The reach of a WPAN varies from a few centimetres to a few meters. WPANs are usually designed for a single user, but they can also be used to connect devices within a small workgroup.
WPANs can be used to connect devices such as keyboards, pointing devices, audio headsets, and printers to smartwatches, cell phones, or computers. A Bluetooth WPAN, also called a piconet, can have up to 8 active devices in a master-slave relationship, with a large number of additional devices connected in parked mode. The first Bluetooth device in the piconet is the master, and all other devices are slaves that communicate with the master.
WPANs can also be used for body area networks, where a person connects their smartphone and Bluetooth headphones, or medical sensors that are wirelessly connected to the body to monitor vital signs. WPANs are flexible, efficient, easy to set up, and portable, but they have limited range and low data rates.
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Wired PANs
A Personal Area Network (PAN) is a computer network that connects devices within a person's immediate vicinity, typically within a 10-metre range. PANs can be wireless or wired.
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Infrared devices
In the context of infrared devices, a PAN can be established using infrared communication protocols, such as the Infrared Data Association (IrDA) protocol. IrDA technology relies on line-of-sight propagation, meaning the transmitting and receiving devices must be aligned for successful communication. For example, a TV remote won't function unless it's directly pointed at the TV screen.
The spherical pan-tilt infrared thermographic imaging device is a notable example of an advanced infrared device. It consists of a spherical gimbal, which provides rotational, tilting, and zooming capabilities, and an infrared thermal imager. The spherical gimbal enables remote control of the direction and field of view, while the infrared thermal imager captures infrared radiation and generates thermal images, displaying temperature distribution. This technology enhances night vision and visibility in challenging weather conditions, making it invaluable for surveillance, fire detection, and rescue missions.
In summary, infrared devices are essential components of PANs, facilitating remote control of electronics and advanced imaging capabilities in various sectors, including security, military, and emergency response fields.
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USB connections
A PAN is a computer network that enables devices within an individual's workspace to communicate with each other. It is designed to be used by a single person or a small workgroup and typically has a range of around 10 meters. PANs can be wired or wireless.
A wired PAN uses cables or wires to connect devices. USB is one of the most popular wired PAN technologies and can be used to connect devices such as computers, smartphones, and tablets. Other wired PAN technologies include FireWire, IEEE-1394, and Thunderbolt.
In addition to USB, other WPAN technologies include Bluetooth, Zigbee, Infrared (IrDA), and Ultra-Wideband (UWB). These technologies use wireless communication protocols to connect devices without the need for physical connections. Bluetooth, in particular, is the most commonly used technology for WPANs.
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Bluetooth
To set up a Bluetooth PAN, devices must be paired. This involves exchanging details so that the devices can recognize each other and form an ad-hoc network. In a Bluetooth PAN, one device acts as the master, and all other devices are slaves that communicate with the master. The master device can share its internet connection with the other devices through Bluetooth tethering.
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