Public wireless transceiver equipment experience set up a wireless LAN
The project done way briefly structure, and don"t have to pay to network operators; Fraud private network, high stability. Wireless transmission to microwave for transmission media, proof of the different modulation method, solar panel 2012 dab4c51ck can be divided into spread spectrum way and narrowband modulation mode two kinds. Spread spectrum system of harassment of the way ability and stability is high, to other electronic equipment of harassment small. Narrowband modulation mode takes up less frequency band, band fraud rate; Usually taken public frequency band, the necessary request; Between adjacent channel great influence, communication, communication is the quality of can"t guarantee.
The public wireless transceiver equipment set up wireless LAN topology structure as shown in figure 2 shows. Wireless transceiver equipment including wireless Modem and wireless bridge, etc. Wireless Modem and monitoring stations and is responsible for the center between the RS232 communication. ogkewe25dwe I don"t know the remote computer. If you use Bridges for the network for group founded, network topology structure will be more active, as shown in figure 3 below. Which in a wireless network on both ends of the cable network is QiQu, it doesn"t matter is Ethernet, token ring or peer-to-peer network of local LAN. That doesn"t matter) that is the Internet, but use public network should think about stability and cost subject.
Fraud transceiver integrated chips in the stations of the complete wireless communication baby clothes wholesale uk
The first two network mode is a feature of the existing network system and product, wireless communication departments need not specially development, completed relatively easy. But because the purchase of the products are the independent device, make the whole system especially monitoring station end structure, huge volume confused, usually in the system promotion will have brought unlucky, and outsourcing products will increase the capital of system. If can will be purchased the product"s effectiveness and integrated monitoring stations in the same area, complete in circuit board level, it doesn"t matter to stop the unlucky elements; But this will increase the difficulty of system development, extend the development cycle. Measure should be interested, proof of the project team development power and system life cycle for the most beneficial to take.
By this way station to complete department plans to just figure 1, 2, and 3 of wireless communication interface (can see this paper the early online edition of the full text). The department"s hardware real-time and punishment, memory block diagram for the association as shown in figure 4 shows roughly.personal computer remote 2012 Each child has A variety of chip modules are available for take, like rf can be used ML2751 and RTF6900, complete modulation/demodulation of the have ML2722, spread spectrum, solution can be used LD9002DX2 expansion and Stel-2000 A, etc.
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