CN202906897U

CN202906897U - Audio and data forwarding device using a variety of transmission means

Info

Publication number: CN202906897U
Application number: CN201220318905XU
Authority: CN
Inventors: 俞春华; 王晓慰; 黄春辉
Original assignee: Nanjing Panda Electronics Co Ltd; Panda Electronics Group Co Ltd; Nanjing Panda Handa Technology Co Ltd
Current assignee: Nanjing Panda Electronics Co Ltd; Panda Electronics Group Co Ltd; Nanjing Panda Handa Technology Co Ltd
Priority date: 2012-06-30
Filing date: 2012-06-30
Publication date: 2013-04-24
Anticipated expiration: 2022-06-30

Abstract

The utility model provides an audio and data forwarding device using a variety of transmission means. The device comprises a CPCI bus, an interface module, a main control module, a wired modulation module and a wireless module, wherein the interface module, the main control module, the wired modulation module and the wireless module are connected to the CPCI bus, the main control module controls the wired modulation module and the wireless modulation module to modulate the signal input by the interface module and forward the signal respectively in the wired and wireless ways. The forwarding device has a variety of transmission means for audio and data signal, the transmission way is more reliable, and the transmission distance is farther.

Description

Audio frequency and data forwarding device with multiple transmission means

Technical field

The utility model relates to electronic circuit design field, and it is particularly relevant for a kind of audio frequency with multiple transmission means and data forwarding device based on cpci bus.

Background technology

In short wave communication, the receiver demodulation obtains needing by transmission equipment data to be delivered to information centre after audio frequency and the data.In some occasions in the past, use common voice-frequency cable to realize the transmission of signal, means are fairly simple, and survivability can be relatively poor.The development of the various networking technologys such as Ethernet, Wimax and Wifi provides the foundation for realizing multiple transmission means.Wherein wireless Wimax is based on large capacity, the two-forty of IP agreement, the communication technology of wide coverage, and Wifi uses the widest a kind of wireless network transmission technology now, the electric wave wide coverage, and transmission rate is fast.

The utility model content

The utility model purpose is to provide a kind of multiple transmission means that possesses audio frequency and data-signal, and the audio frequency that transmission means is more reliable, transmission range is farther and data forwarding device.

For reaching above-mentioned purpose, the utility model provides a kind of audio frequency and data forwarding device with multiple transmission means, comprise: cpci bus, interface module, main control module, wired modulation module and wireless-modulated module, interface module, main control module, wired modulation module are connected with the wireless-modulated module and are connected cpci bus, wherein the signal of the wired modulation module of master control module controls and wireless-modulated module docking port module input is modulated, and transmits in wired and wireless mode respectively.Main control module is responsible for showing and controlling other module by cpci bus.

In the utility model, interface module receives audio signal and the data-signal after the short-wave receiver modulation, and above-mentioned audio signal and data-signal carried out respectively pcm encoder and data-reusing, and the data communication device of conversion is crossed cpci bus give wired modulation module and wireless-modulated module.Further, interface module comprises the AD73322 chip of received audio signal, MAX488 chip and the dsp chip TMS320C6416 of reception of data signal, wherein AD73322 chip and MAX488 chip all are connected with dsp chip TMS320C6416, and dsp chip TMS320C6416 is used for audio signal and the data-signal that receives carried out respectively pcm encoder and data-reusing.

In the utility model, wired modulation module comprises the CPCI interface chip PCI9054, fpga chip EP2SGX30CF, AD73322, optical-electric module and Ethernet chip RTL8208B, wherein the CPCI interface chip PCI9054 is communicated by letter with cpci bus, fpga chip EP2SGX30CF connects the CPCI interface chip PCI9054, AD73322, optical-electric module is connected with Ethernet chip RTL8208B and is connected fpga chip EP2SGX30CF, fpga chip EP2SGX30CF control AD73322 and optical-electric module will be converted to light signal from the data that cpci bus obtains respectively, audio signal, and Ethernet chip RTL8208B is used for wired modulation module access network based on ethernet.

Main control module is communicated by letter with interface module, wired modulation module, wireless-modulated module etc. by cpci bus.Operating system provides the system call of relevant cpci bus to come PCI allocation equipment, mainly needs the programming apparatus initialization, the functions such as equipment read-write and interrupt service routine.In the device initialize function, driver is by device number and trading company of factory scanning cpci bus and obtain configuration space and the base address in local address space; Obtain the break in service number of CPCI plug-in card, be connected with corresponding interrupt service subroutine, and open interruption.Equipment is write function and write data in cpci bus, sends to interrupt.Equipment is read function reading out data from cpci bus.Interrupt service routine in the driver is responsible for announcement apparatus and is read function data and be ready to.For realize and other module between transfer of data, opened up two memory blocks in the dual port RAM in the main control module, one is used for depositing the data that cpci bus sends to other module, deposits the data that other module is returned for one.When sending data by cpci bus to other module, data write first dual port RAM, send to other module and interrupt, and notify its reading out data.When other module return data, data also are to write first dual port RAM, trigger the interruption of cpci bus again.Have no progeny during the driver response is somebody's turn to do and get final product reading out data.

In interface module, dsp chip TMS320C6416 carries out pcm encoder and data-reusing to audio signal and data-signal, and signal is put in the unified Frame, by cpci bus these Frames is transmitted again.

In wired modulation module, the Main Function of fpga chip EP2SGX30CF is that the data transaction that cpci bus is sent here is become the high-speed-differential data, gives optical-electric module with these differential datas again, controls simultaneously RTL8208B and AD73322.

In the wireless-modulated module, dsp chip TMS320C6416 carries out baseband modulation to audio frequency and data-signal, produces I, Q signal, I, Q signal is delivered to carried out frequency up-converted generation radiofrequency signal in the SE7051L intermediate frequency process chip.Wifi module group is directly changed into radiofrequency signal with data-signal, produces I, Q signal in the middle of need not.

In the utility model, described wireless-modulated module comprises dsp chip TMS320C6416, SE7051L intermediate frequency process chip, SE7351L radio frequency processing chip and WIFI module group, wherein, dsp chip TMS320C6416 connects cpci bus, for generation of I, the Q baseband signal, SE7051L intermediate frequency process chip connects dsp chip TMS320C6416, and the frequency low noise high linear degree transceiver of SE7051L intermediate frequency process chip produces intermediate-freuqncy signal, SE7351L radio frequency high linearity front-end transceiver produces radiofrequency signal and launches, WIFI module group connects dsp chip TMS320C6416, is used for the I that dsp chip TMS320C6416 is produced, the Q baseband signal is carried out wireless forwarding.

The utility model can drive a plurality of standard module work by the cpci bus technology, to realize multiple Working service, finishes the transmission equipment integrated design.Simultaneously this equipment choosing novel photoelectric module has increased optical fiber transmission function, makes transmission means more reliable, and transmission range is farther.And the utility model can compatible audio transmission mode in the past, the transmission meanss such as optical fiber, Ethernet and Wifi have been expanded simultaneously, the multiple transmission means that possesses audio frequency and data-signal, can with information stability be transferred to information centre, increase the channel of communication, improved the stupid sustainability of communication.

Description of drawings

Fig. 1 be the utility model embodiment based on the audio frequency with multiple transmission means of cpci bus and the internal frame diagram of data forwarding device.

Fig. 2 is the internal frame diagram of interface module among Fig. 1.

Fig. 3 is the internal frame diagram of wired modulation module among Fig. 1.

Fig. 4 is the internal frame diagram of wireless-modulated module among Fig. 1.

Embodiment

In order more to understand technology contents of the present utility model, especially exemplified by specific embodiment and cooperate appended graphic being described as follows.

Fig. 1 be the utility model embodiment based on the audio frequency with multiple transmission means of cpci bus and the internal frame diagram of data forwarding device.This device comprises cpci bus, interface module, main control module, wired modulation module and wireless-modulated module.Interface module, main control module, wired modulation module are connected with the wireless-modulated module and are connected cpci bus, wherein the signal of the wired modulation module of master control module controls and wireless-modulated module docking port module input is modulated, and transmits in wired and wireless mode respectively.

Wherein, the CPU that main control module uses is the X86 of 1.0GHz, in save as 512M, with two 10/100M self adaptation Ethernets, six serial ports, four road USB2.0, pci bus meets CPCI 2.0R2.1 standard.Main control module can load Windows XP or vxworks operating system.Its main control software is responsible for showing control that main control software is being developed under the Windows XP or under the vxworks operating system, writes with Visual C++, can write with Tilcon in VxWorks in Windows XP.Different CPCI drivers are installed in the different system.

Interface module receives audio signal and the data-signal after the short-wave receiver modulation, and above-mentioned audio signal and data-signal are carried out respectively pcm encoder and data-reusing, and the data communication device of conversion is crossed cpci bus give wired modulation module and wireless-modulated module.Further, interface module comprises the AD73322 chip of received audio signal, MAX488 chip and the dsp chip TMS320C6416 of reception of data signal, wherein AD73322 chip and MAX488 chip all are connected with dsp chip TMS320C6416, dsp chip TMS320C6416 is used for audio signal and the data-signal that receives carried out respectively pcm encoder and data-reusing, specifically as shown in Figure 2.

In the utility model, modulation module can be divided into wired modulation module and wireless-modulated module, all meets the cpci bus agreement in each module, and data are read in from cpci bus, carries out data transaction in each module.Wherein wire transmission module has the functions such as opto-electronic conversion, Ethernet conversion, voice modulation, as shown in Figure 3, wired modulation module uses fpga chip EP2SGX30CF to carry out data transaction, communicate by letter with cpci bus by using the CPCI interface chip PCI9054, receive control command from bus, and upload state information.This module is used the 1.25Gbps optical-electric module, and the signal of telecommunication is converted to light signal; Use Ethernet chip RTL8208B access network based on ethernet, use simultaneously AD73322 that data transaction is become audio signal, be connected with traditional audio transmission cable.

The wireless-modulated module has the functions such as Wifi, Wimax modulation, select commercial Wifi module, the Wifi module adopts serial ports or Transistor-Transistor Logic level to turn the Wifi technology, support standard IEEE 802.11N and IEEE802.11B/G etc., interface type is USB1.1 and USB2.0, and frequency range is 2.4-2.4835GHz, several 14 of working channel, Data Modulation OFDM/DBPSK/DQPSK/CCK, transmission rate 135/54/48/36/24/18/12/9/6/1M(self adaptation), transmission range is 300 meters farthest.

Use dsp chip TMS320C6416 to produce I, Q baseband signal in the Wimax transmission, simultaneously by adopting SE7051L intermediate frequency low noise high linear degree transceiver to produce intermediate-freuqncy signal, produce radiofrequency signal by SE7351L radio frequency high linearity front-end transceiver at last and launch.The circuit diagram of wireless-modulated module as shown in Figure 4.

Although the utility model discloses as above with preferred embodiment, so it is not to limit the utility model.Have in the technical field under the utility model and usually know the knowledgeable, within not breaking away from spirit and scope of the present utility model, when being used for a variety of modifications and variations.Therefore, protection range of the present utility model is as the criterion when looking claims person of defining.

Claims

1. audio frequency and data forwarding device with multiple transmission means, it is characterized in that, comprise: cpci bus, interface module, main control module, wired modulation module and wireless-modulated module, interface module, main control module, wired modulation module are connected with the wireless-modulated module and are connected cpci bus, wherein the signal of the wired modulation module of master control module controls and wireless-modulated module docking port module input is modulated, and transmits in wired and wireless mode respectively.

2. 1 described audio frequency and data forwarding device with multiple transmission means as requested, it is characterized in that, interface module receives audio signal and the data-signal after the short-wave receiver modulation, and above-mentioned audio signal and data-signal carried out respectively pcm encoder and data-reusing, and the data communication device of conversion is crossed cpci bus give wired modulation module and wireless-modulated module.

3. 2 described audio frequency and data forwarding devices with multiple transmission means as requested, it is characterized in that, wherein interface module comprises the AD73322 chip of received audio signal, MAX488 chip and the dsp chip TMS320C6416 of reception of data signal, wherein AD73322 chip and MAX488 chip all are connected with dsp chip TMS320C6416, and dsp chip TMS320C6416 is used for audio signal and the data-signal that receives carried out respectively pcm encoder and data-reusing.

4. 1 described audio frequency and data forwarding device with multiple transmission means as requested, it is characterized in that, wherein wired modulation module comprises the CPCI interface chip PCI9054, fpga chip EP2SGX30CF, the AD73322 chip, optical-electric module and Ethernet chip RTL8208B, wherein the CPCI interface chip PCI9054 is communicated by letter with cpci bus, fpga chip EP2SGX30CF connects the CPCI interface chip PCI9054, AD73322, optical-electric module is connected with Ethernet chip RTL8208B and is connected fpga chip EP2SGX30CF, fpga chip EP2SGX30CF control AD73322 and optical-electric module will be converted to light signal from the data that cpci bus obtains respectively, audio signal, and Ethernet chip RTL8208B is used for wired modulation module access network based on ethernet.

5. 1 described audio frequency and data forwarding device with multiple transmission means as requested, it is characterized in that, wherein said wireless-modulated module comprises dsp chip TMS320C6416, SE7051L intermediate frequency process chip, SE7351L radio frequency processing chip and WIFI module group, wherein, dsp chip TMS320C6416 connects cpci bus, for generation of I, the Q baseband signal, SE7051L intermediate frequency process chip connects dsp chip TMS320C6416, and the frequency low noise high linear degree transceiver of SE7051L intermediate frequency process chip produces intermediate-freuqncy signal, SE7351L radio frequency high linearity front-end transceiver produces radiofrequency signal and launches, WIFI module group connects DSP chip TMS320C6416, is used for the I that dsp chip TMS320C6416 is produced, the Q baseband signal is carried out wireless forwarding.