A handheld terminal refers to a portable data processing terminal having the following characteristics.
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l With data storage and computing capabilities (usually operating system)
l can be used for secondary development
l Can communicate with other devices
l Man-machine interface, specifically display and input functions
l Battery powered
In recent years, with the gradual increase in the requirements of military enterprises for portable handheld terminals, the state has invested a large amount of money in the development of smart handheld terminals. However, the status quo is that most of the grassroots units are allotted a variety of low-rate field satellite communications equipment, and most models support data services, but in practice, the actual utilization rate of military data communication services is very low. The main reason is that there is no dedicated data communication software and supporting field data terminals. In the past, the force opened the use of data communication services, mainly using the super terminal communication software desktop notebook computer that comes with the operating system, and there is a service report with single function and poor interactivity. The content of the content is confusing. The desktop or laptop computer is a communication terminal with portability and reliability. It is not suitable for the general requirements of the general environment. Therefore, it is urgent to develop a new set of dedicated data communication software and communication terminals suitable for field satellite equipment, improve the environmental conditions of satellite data communication applications, and improve the ability of satellite communication data services. Due to the professionalism and particularity of its industry, satellite intelligent terminals urgently require a large amount of human and material resources for strong development to supply the country's demand for communication equipment development.
The human-computer interaction in the satellite intelligent terminal with embedded system as the core is very prominent and important. The wince system and the linux system will be widely used. However, the wince system and the linux system driver development threshold are very high, for ordinary developers or It is difficult for a company that lacks a large number of operational practices to quickly create a solution that covers dedicated data communication software and communication terminals suitable for use in field satellite equipment.
Shanghai Chenhan Electronic Technology Co., Ltd., in conjunction with a major national defense equipment project, has designed the hardware architecture of high-performance satellite application handheld terminals. The terminal uses a high-performance Freescale i.MX536 Cortex A8 chip as the information processor, stable and continuous operation from -40 ° C to 85 ° C, integrated hardware video and network acceleration processing unit, in wince7.0 On the system platform, the receiving and processing functions of video, pictures, short messages and files of the broadcast network terminal can be realized; at the same time, the navigation signals of Beitou No. 2 satellite RNSS and RDSS can be received to realize Beidou navigation positioning, short message communication and antenna assisted star And other functions. It has the characteristics of small size and low power consumption, and it can meet the information processing application of individual field operations and mobile carrier platforms.
The satellite application handheld terminal is composed of a host, a headset, a network port data cable, a USB serial data cable, and a power adapter. It is mainly used to process broadcast subscriber station data information. The information is transmitted through a high-speed network interface. The terminal power supply supports internal battery and subscriber station power supply. It can be performed by powerful hardware video codec technology and satellite video communication software. Point-to-point real-time audio and video communication.
Main features:
l Broadcast network sea and air information portable processing capabilities
l Supports codec processing of 1080P HD video
l Support field satellite video call function
l Support broadcast and Beidou dual system text communication function
l Support field intelligence collection and transmission
l can work continuously for 6 hours
The main function:
l Broadcast service processing function
l Battlefield situation information collection function
l With satellite channel videophone function
l With satellite channel message communication function
l with broadcast assisted star function
l With Beidou navigation and positioning function
l With Beidou short message communication function
l With Beidou location report function
l With electronic compass indication
The high-performance satellite navigation handheld terminal is one of the important ground equipments of the Beidou satellite navigation system in China. At present, a new generation of Beidou satellite navigation system is under construction. In order to promote the system construction as soon as possible, it is urgent to have a practical application like Shanghai Chenhan Electronic Technology Co., Ltd., and a high-tech enterprise with strong research and development strength to develop and produce a large number of functions. A variety of user terminal equipment with advanced technology and reliable quality translates resources into the combat effectiveness of the troops and the productivity of the country's construction, and exerts strong military and economic benefits.
waterproof D-sub system is IP67 rated. These panel-mount connectors are available in solder cup as well as right angle and vertical PCB mount types. The cable-mount connector kit includes the connector, which has solder cup contacts. These connectors are available in 9-, 15-, and 25-positions in Standard Density and 15-, 26-, and 44-positions in high density. The recommended wire gauge for the solder cup connector is 22 AWG to 26 AWG.
These panel-mount waterproof D-subs are designed for rear-mount applications in panels that are up to 2.0 mm thick. They come with two sets of jackscrews. One jackscrew set is 5 mm long for panel thickness up to 1.2 mm, and the other is 6 mm long for panel thicknesses from 1.2 mm to 2.0 mm.
Cable mount D-sub connector kits come with the backshell, seal, thumbscrews, and solder cup connector. They are also easy to install. Simply fit the cable through the backshell, terminate the wire to the solder cup contacts, and hand tighten the cable nut on the rear of the backshell. The backshell will seal a particular range of cable diameters depending on the position count of the connector. Consult the datasheet for specific cable diameter ranges.
Specifications
Current rating
Standard D-sub: 5 A
Hi-density D-sub: 2 A
Breakdown voltage: ≥ AC 500 V/1 minute
Insulation resistance: ≥ 500 MΩ @ DC 500 V
Contact resistance: ≤ 20 mΩ
Material
Contacts: copper alloy, gold-plated
Connector body: nylon 9T or PBT, UL Recognized
Shell: steel, nickel-plated
Applications
DV camcorder
DV VTR
Non-linear editing system
Broadcast monitor
Betacam deck
Panel Mount Waterproof D-Sub Connectors:
Water Proof D-Sub, Standard Density, Male, Panel Mount
Water Proof D-Sub, Standard Density, Female, Panel Mount
Water Proof D-Sub, Standard Density, Female, PCB Mount
Waterproof solder cup, stamped & formed contact D-sub waterproof
solder cup,machined contacts D-sub waterproof
Vertical Mount Waterproof D-Sub Connectors:
Combo Power + Signal D-Sub Connector, Vertical Mount, Pluge Type,
right angle D-sub waterproof
IP67 rated Combo power D-sub waterproof
Waterproof Vertical Mount D-Sub Connectors
Standard Density, Waterproof Vertical Mount D-Sub Connectors, High Density Waterproof Vertical Mount D-Sub Connectors,IP67 D-Sub Connectors Vertical Mount,Board Mount Waterproof Vertical Mount D-Sub Connectors
ShenZhen Antenk Electronics Co,Ltd , https://www.antenk.com