Make up a plan and retell the text according to it.
UNIT 3
Mobile devices
Topic 1: Mobile data terminal
1. Read and translate the text:
A mobile data terminal (MDT) is a computerized device used in public transit vehicles, taxicabs, courier vehicles, service trucks, commercial trucking fleets, military logistics, fishing fleets, warehouse inventory control, and emergency vehicles to communicate with a central dispatch office.
Mobile data terminals feature a screen on which to view information and a keyboard or keypad for entering information, and may be connected to various peripheral devices. Standard peripherals include two-way radios and taximeters, both of which predate computer assisted dispatching. MDTs may be simple display and keypad units, intended to be connected to a separate black-box or AVL (see below) computer. While MDTs were originally dumb terminals most have been replaced with fully functional PC hardware, known as MDCs (Mobile Digital Computers). While the MDC term is more correct, MDT is still widely used. Other common terms include MVC (Motor Vehicle Computer) and names of manufacturers such as Mobile or KDT.
In the earlier days of computer-aided dispatching (CAD), many MDT's were custom devices, used with specialized point to point radios, particularly in applications such as police dispatching. While applications like taxi and package delivery often still use custom designed terminals, many CAD systems are switching to common (or ruggedized) laptops and Wide-Area Wireless IP communications, utilizing the Internet or private IP networks connected to and over it.
For many industrial applications, such as commercial trucking, GIS, agriculture, mobile asset management, and other industries, custom electronic hardware is still preferred. Custom terminals use I/O interfaces that connect directly to industry-specific equipment. They are usually environmentally hardened packages with power supply protection and robust memory file systems that greatly improve reliability and task efficiency. MDT solutions that are based on ruggedized consumer products or consumer available software will typically not have the life cycle duration expected in industrial applications, over 5 years.
A related device classification, specific to the transportation industry, is called automatic vehicle location (AVL). Mobile data terminals are often used in conjunction with a ¨black box¨ that contains GPS receiver, cell phone transceiver, other radio devices, or interfaces to industry-specific equipment. AVL devices may be simple stand-alone modems or may include operating systems with application space for the system integrator.
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MDTs are most commonly associated with in-vehicle use. This requires the MDT to be anchored to the vehicle for driver safety, device security, and user ergonomics. Mounts are designed for attaching MDTs to mobile workspaces into most notably automobiles, forklifts, boats, and planes.
MDTs generally require specific installation protocols to be followed for proper ergonomics, power and communications functionality. MDT installation companies such as USAT Corp. and TouchStar Pacific specialize in designing the mount design, assembling the proper parts, and installing them in a safe and consistent manner away from airbags, vehicle HVAC controls, and driver controls. Frequently installations will include a WAN modem, power conditioning equipment, and a WAN, WLAN, and GPS antenna mounted external to the vehicle.
2. Match the following notions with their definitions:
| 1) device | a) any kind of carriage or conveyance on land, e.g. a cart, a lorry, a motorcar, a bicycle |
| 2) taxicab | b) an invention; something made for a special purpose |
| 3) taximeter | c) freedom from danger |
| 4) vehicle | d) a car for hire. It is usually provided with a device which shows the amount to be paid |
| 5) safety | e) an instrument fixed to a taxi. It shows the distance travelled and the amount to be paid |
3. Say whether the given sentences true or false. Correct if necessary:
- Mobile data terminals feature a screen on which to view information and a keyboard or keypad for entering information, and may be connected to various peripheral devices.
- A related device classification, specific to the transportation industry, is called automatic vehicle location (AVL).
- A mobile data terminal (MDT) is a non-computerized device used in public transit vehicles, taxicabs, courier vehicles, service trucks, commercial trucking fleets, military logistics, fishing fleets, warehouse inventory control, and emergency vehicles to communicate with a central dispatch office.
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- MDTs may be simple display and keypad units.
- MDTs generally require specific installation protocols to be followed for proper ergonomics.
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