CN104092475A - On-board network signal conversion device - Google Patents
On-board network signal conversion device Download PDFInfo
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- CN104092475A CN104092475A CN201410381594.5A CN201410381594A CN104092475A CN 104092475 A CN104092475 A CN 104092475A CN 201410381594 A CN201410381594 A CN 201410381594A CN 104092475 A CN104092475 A CN 104092475A
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Abstract
The invention relates to the field of mobile internet and in particular relates to an on-board network signal conversion device. The on-board network signal conversion device comprises a 3G transmitting and receiving antenna, a radio frequency module, a signal processor and a WIFI processor, wherein the radio frequency module comprises a high-frequency modulation unit and a high-frequency demodulation unit; the WIFI processor comprises a network adapter and a WIFI antenna; the signal processor comprises a digital-to-analogue conversion unit, and an analogue-to-digital conversion unit; the 3G transmitting and receiving antenna, the high-frequency demodulation unit, the analogue-to-digital conversion unit, the network adapter and the WIFI antenna are sequentially connected in series, and the 3G transmitting and receiving antenna, the high-frequency modulation unit, the digital-to-analogue conversion unit, the network adapter and the WIFI antenna are sequentially connected in series. The on-board network signal conversion device realizes the mutual conversion and sending of a wireless 3G signal and a WIFI signal and overcomes the defects of the prior art.
Description
Technical field
The present invention relates to mobile Internet field, in particular to In-vehicle networking chromacoder.
Background technology
WIFI is widely used a kind of network schemer on present society, be widely used in various places, and WIFI (be a kind of can be by terminals such as PC, handheld devices with the interconnected technology of wireless mode, in fact it is a high frequency radio signal.) conversion of network is generally that router completes.
Conventionally the router using is comprised of four parts: electric power system, wired network interface, WIFI antenna and cable network transducer.The wire signal that wired network interface is received, is converted to the WIFI signal that can directly be sent by WIFI antenna, then sends by WIFI antenna by cable network transducer.Be subject to the restriction of WIFI aerial signal intensity, user can receive the wireless signal being sent by WIFI in distance W IFI antenna certain limit.
But traditional router can only be converted into WIFI signal by wired network signal, but wireless signal cannot be converted into WIFI signal.
Summary of the invention
The object of the present invention is to provide In-vehicle networking chromacoder, to solve the above problems.
In-vehicle networking chromacoder is provided in an embodiment of the present invention, has comprised: 3G dual-mode antenna, radio-frequency module, signal processor and WIFI processor; Radio-frequency module comprises high frequency modulated unit and high frequency demodulation unit, and WIFI processor comprises network adapter and WIFI antenna, and signal processor comprises D/A conversion unit and AD conversion unit;
3G dual-mode antenna, high frequency demodulation unit, AD conversion unit, network adapter and WIFI antenna are sequentially connected;
3G dual-mode antenna, high frequency modulated unit, D/A conversion unit, network adapter and WIFI antenna are sequentially connected.
Preferably, WIFI processor also comprises IF processing unit and RF processing unit;
WIFI antenna, RF processing unit, IF processing unit and network adapter are sequentially connected.
Preferably, high frequency demodulation unit comprises first signal receiving element and secondary signal receiving element, and signal processor comprises standard signal judging unit;
Standard signal judging unit is electrically connected to first signal receiving element and secondary signal receiving element respectively;
First signal receiving element is connected between 3G dual-mode antenna and AD conversion unit;
Secondary signal receiving element is connected between 3G dual-mode antenna and AD conversion unit.
Preferably, also comprise display module, display module comprises signal strength signal intensity display unit, and radio-frequency module also comprises: signal strength detection unit, and signal processor also comprises signal strength signal intensity judge module;
Signal strength detection unit is electrically connected to first signal receiving element and secondary signal receiving element respectively;
Signal strength detection unit, signal strength signal intensity judge module and signal strength signal intensity display unit are sequentially connected.
Preferably, display module also comprises: WIFI signal display module, WIFI signal detection module and WIFI indicating module;
WIFI signal display module, WIFI signal detection module and network adapter are sequentially connected;
WIFI indicating module is electrically connected to D/A conversion unit and/or AD conversion unit.
Preferably, also comprise: baseband processor, baseband processor comprises; Signal form translate unit and network adapter detecting unit;
Signal form translate unit is connected between network adapter and AD conversion unit;
Network adapter detecting unit is connected between network adapter and Signal form translate unit.
Preferably, also comprise: power module, power module comprises portable power source unit, voltage conversion unit and power supply indicating member;
Portable power source unit is electrically connected to voltage conversion unit;
Voltage conversion unit is electrically connected to D/A conversion unit, AD conversion unit, high frequency modulated unit, high frequency demodulation unit, Signal form translate unit, network adapter detecting unit and power supply indicating member respectively; .
Preferably, WIFI processor also comprises: WIFI reset switch;
WIFI reset switch is electrically connected to network adapter.
Preferably, also comprise: system reset switch, D/A conversion unit, AD conversion unit, high frequency modulated unit, high frequency demodulation unit, Signal form translate unit and network adapter detecting unit are all electrically connected to voltage conversion unit by system reset switch.
Preferably, also comprise: SRAM holder and USB storage;
USB storage is for being electrically connected to USB fetch equipment;
SRAM holder is electrically connected to high frequency modulated unit, high frequency demodulation unit, AD conversion unit and D/A conversion unit respectively.
The In-vehicle networking chromacoder that the embodiment of the present invention provides, wired network signal can only be converted to WIFI signal with of the prior art, and wireless signal can not be converted to WIFI signal, compare, it is by being provided with wireless receiving antenna, radio-frequency module, signal processor and WIFI processor, and radio-frequency module comprises high frequency modulated unit and high frequency demodulation unit, WIFI processor comprises network adapter and WIFI antenna, signal processor comprises D/A conversion unit and AD conversion unit, when wireless 3G signal need to be converted to WIFI signal, 3G dual-mode antenna receives wireless 3G signal, by high frequency demodulation unit, 3G signal is carried out to demodulation again, by radio-frequency module, comprise high frequency modulated unit and high frequency demodulation unit again, WIFI processor comprises network adapter and WIFI antenna, signal processor comprises that D/A conversion unit and AD conversion unit change the type of signal, by network adapter, data are encapsulated again, and then by WIFI antenna, thereby data are sent and realized 3G signal and be converted into WIFI signal, when needs are converted into 3G signal by WIFI signal, only need said process is reverse, just can complete the process that WIFI signal is converted into 3G signal, and finally by 3G antenna, signal is sent, thereby the mutual conversion of wireless 3G signal and WIFI signal and the function of transmission have been realized, thereby the deficiencies in the prior art have been solved.
Accompanying drawing explanation
Fig. 1 shows the In-vehicle networking chromacoder basic module figure of the embodiment of the present invention;
Fig. 2 shows the WIFI processor module figure of the In-vehicle networking chromacoder of the embodiment of the present invention;
Fig. 3 shows the baseband processor basic module figure of the In-vehicle networking chromacoder of the embodiment of the present invention.
Embodiment
Below by specific embodiment, also by reference to the accompanying drawings the present invention is described in further detail.As shown in Figure 1, the embodiment of the present invention 1 provides In-vehicle networking chromacoder, comprising: wireless receiving antenna, radio-frequency module 102, signal processor 103 and WIFI processor; Radio-frequency module 102 comprises high frequency modulated unit 1022 and high frequency demodulation unit 1021, and WIFI processor comprises network adapter 104 and WIFI antenna 105, and signal processor 103 comprises D/A conversion unit 1032 and AD conversion unit 1031; 3G dual-mode antenna 101, high frequency demodulation unit 1021, AD conversion unit 1031, network adapter 104 and the 105 order series connection of WIFI antenna; 3G dual-mode antenna 101, high frequency modulated unit 1022, D/A conversion unit 1032, network adapter 104 and the 105 order series connection of WIFI antenna.
Specifically when converting wireless 3G signal to WIFI signal, first by 3G antenna, wireless signal is received, by high frequency demodulation unit 1021, wireless signal is carried out to demodulation again, to obtain original high-frequency signal, type at high-frequency signal solution being mixed up through AD conversion unit 1031 transforms, to obtain digital signal, to this signal is processed.When network adapter 104 (NIC) receives data, can digital signal encapsulate to the buffer memory with data according to default agreement, also can judge whether these data are the data that mail to this processor simultaneously, if just can process, network adapter 104 is generally carried out exchanges data by DMA and IO operation.Finally by WIFI antenna 105, by data, the channel in appointment sends.Relative, WIFI signal is converted to 3G signal, performed process is antipodal process.
In-vehicle networking chromacoder provided by the present invention is mainly used in vehicle drive environment.
Concrete, In-vehicle networking chromacoder can adopt the QSD8650 processor chips of Qualcomm, and radio-frequency module 102 can be used RTR6280, two radio frequency chips of RTR6500.Primary processor QSD8650 introduces
Master chip QSD8650 in this module is arithmetic speed first moves monokaryon product up to the whole world of 1G HZ,
This chip comprises two CPU that disposal ability is powerful, and ARM9 is baseband processor 108, and the communication protocol of the coding and decoding of responsible processing digital signal and GSM., WCAMA, CDMA2000 is resolved.ARM11 is application processor, operation system and various application program, and its clock frequency can reach 1GHZ, is the mobile processor that is applied to the first 1GHZ in radio communication on market.
Selecting the reason of QSD8650 is that it has following lot of advantages: (1) chip adopts basic frequency up to the mobile processor of the Scorpion of 1GHZ, makes hardware platform have powerful processing capacity.(2) there is multimode modulator-demodulator, high performance DSP, the modulation-demodulation technique HSPDA/WCDMA/GSM/GPRS/EDGE of support, the application processor of 1GHZ.(3) comprehensive complete wireless connections solution.(4) resources of chip is abundant: processor unit, 1) the Scorpion processor that dominant frequency is 1GHZ; 2) two dsp chip dominant frequency are respectively 600MHZ and 100MHZ; 3) an ARM9 processor that dominant frequency is 266MHZ; The modulation-demodulation technique of supporting, WCDMA/GSM/GPRS/CDMA2000/EDGE.
Memory cell, 1) support 256Mbit, 512Mbit, 1Gbit*32DDR-SDRAM; 2) 8 or 16 s' NAND/OneNANDFlash; 3) support the access speed of 183MHZ.
Serial communication interface, supports 4 (2HS+2 standards).
USB interface, supports USB technology to comprise: high speed USB transceiver and OTG technology.
The signal processor 103 of GSM/WCDMA/CDMA2000 module; simultaneously Analog signals and digital signal; be a digital-to-analogue mixing module, signal processor 103 is responsible for SIM interface (SIM card read the judgement with signaling mode), the processing of mixed signal and the function of radio-frequency module 102 and is controlled.Aspect signal modulated process, this module completes the digital sample to analog I/Q signal, and completes the IQ modulation to baseband signal, and baseband digital signal is modulated into analog I/Q signal.
GSM/WCDMA/CDMA2000 mobile terminal, GSM passes through GMSK, in WCDMA data, pass through BPSK, wireless contact is carried out in the radiofrequency signal that data downstream is modulated by QPSK and base station, and radio-frequency module 102 carries out IQ baseband signal high frequency modulated just by antenna transmission, and from antenna reception radiofrequency signal, carry out demodulation and obtain baseband I Q signal.
Radio-frequency module 102 adopts GMSK modulation mode, i.e. Gaussian-filtered minimum shift keying, and this is a kind of phase-modulation of four phases, a code element transmits 2bit.This modulation system by four mutually modulation resolve into two-way bi-phase modulated, two paths of signals adopts respectively sinusoidal wave and cosine wave as carrier signal, thereby they are quadratures, can phase mutual interference in transport process.
Wherein RTR6280 is the complementary CMOS transceiver of single-chip UMTS radio frequency that a band is accepted diversity feature, and on RTR6280 transceiver, integrated takeover diversity function can network capacity promote 50%, and the average data throughput of HSDPA is improved to 100%.
The simple operation principle of WIFI processor (when 3G wireless signal is converted into WIFI signal) is: when physical layer receive signal and confirm errorless after, on after the data of unpacking, send to NIC layer, then, NIC layer judges whether these data mail to this processor, if so, giving upper strata processes; If not, abandon.If the signal that physical layer judgement receives is wrong, can notify transmit leg to retransmit this signal.When WIFI processor has data to send, first judge that whether wireless channel is idle, if so, random back a period of time sends data; If not, wouldn't send.Also the working method that can find out thus this WIFI processor is half-duplex operation, while sending, can not receive, and during reception, can not send.
Wherein, WIFI processor also comprises IF processing unit 106 and RF processing unit 107;
WIFI antenna 105, RF processing unit 107, IF processing unit 106 and network adapter 104 order series connection.
Concrete, the work fundamental characteristics of WIFI processor is, when WIFI processor receives data (digital signal data of being sent by AD conversion unit 1031), NIC is according to the destination address of frame structure, judge whether it is the data that send to WIFI processor, if destination address coupling, also need further to carry out CRC check (cyclic redundancy check (CRC)), after verification is passed through, NIC submits to IF processing unit 106 (IF) by data after data are removed to frame head, IF processing unit 106 (IF) is first modulated (spread spectrum), then carry out up-conversion and amplify processing, finally upconvert to again RF processing unit, by RF processing unit, the signal after modulation is sent, corresponding, when WIFI signal is converted into 3G signal and sends, carry out contrary operation.
High frequency demodulation unit 1021 comprises first signal receiving element and secondary signal receiving element, and signal processor 103 comprises standard signal judging unit; Standard signal judging unit is electrically connected to first signal receiving element and secondary signal receiving element respectively; First signal receiving element is connected between 3G dual-mode antenna 101 and AD conversion unit 1031; Secondary signal receiving element is connected between 3G dual-mode antenna 101 and AD conversion unit 1031.
When using, be subject to the restriction of unlike signal standard, cannot use the signal receiving device of same standard to receive whole wireless signals.Namely need to judge by signaling mode judging unit form to the received signal, to use corresponding receiving element to receive 3G wireless signal, such as, first signal receiving element and secondary signal receiving element are respectively used to receive the different 3G reception of wireless signals unit such as movement, UNICOM.Concrete, the card for client's identification in appointment inserts after radio-frequency module 102, the form of the received signal of this card can be provided to signal processor 103, after signal processor 103 these forms of judgement, just can send command signal to radio-frequency module 102, so that radio-frequency module 102 is selected corresponding first signal receiving element, or secondary signal receiving element receives 3G wireless signal.
When using, whether user need to recognize the intensity of signal, better to determine the position at its place, or can judge when using network, be to use the processing speed of terminal slow, or the speed of network is slow.Concrete, In-vehicle networking chromacoder, also comprises display module, and display module comprises signal strength signal intensity display unit, and radio-frequency module 102 also comprises: signal strength detection unit, signal processor 103 also comprises signal strength signal intensity judge module; Signal strength detection unit is electrically connected to first signal receiving element and secondary signal receiving element respectively; Signal strength detection unit, signal strength signal intensity judge module and signal strength signal intensity display unit are sequentially connected.
Wherein, signal strength signal intensity display unit can, according to the difference of signal strength signal intensity, use the indicator light of different colours to show; Also can intuitively signal strength signal intensity be expressed with the form of numerical value; Can also be that the intensity of the signal frequency that lamp glimmers is as indicated pointed out, when signal is good, indicator light glimmer, when signal strength signal intensity is general, indicator light low frequency flicker, when signal strength signal intensity is poor, be lamp high frequency flicker, to reach the effect of prompting.Can also be, when network signal is stronger, Lan Dengliang, when network signal is medium, amber light is bright, when network signal intensity is poor, when red.
Except showing the intensity of 3G wireless signal, can also show the working condition of WIFI processor.Concrete, display module also comprises: WIFI signal display module, WIFI signal detection module and WIFI indicating module;
WIFI signal display module, WIFI signal detection module and network adapter 104 order series connection; WIFI indicating module is electrically connected to D/A conversion unit 1032 and/or AD conversion unit 1031.
WIFI signal detection module for detection of in network adapter 104 whether in processing signals, namely whether there is signal to exchange, when having signal transmitting, WIFI signal display module can be pointed out user in the mode of flicker, with explanation network adapter 104, working, or illustrating that it has signal to process.
WIFI indicating module is used for showing AD conversion unit 1031, or whether D/A conversion unit 1032 is in processing signals, with the working condition that mode (flicker of LED lamp) is shown signal processor 103 to user intuitively.
Further, In-vehicle networking chromacoder also comprises: baseband processor 108, and baseband processor 108 comprises; Signal form translate unit 1081 and network adapter detecting unit 1082; Signal form translate unit 1081 is connected between network adapter 104 and AD conversion unit 1031; Network adapter detecting unit 1082 is connected between network adapter 104 and Signal form translate unit 1081.As use GSM/WCDMA/CDMA2000 baseband processor 108, baseband processor 108 can be divided into two parts, and an ARM9 core and a DSP, wherein DSP carries out various processing functions, and ARM9 core is carried out a whole set of protocol software and man-machine interface function.DSP communicates by letter mutually by a special double port memory with ARM.Wherein DSP processes the baseband signal of physical layer, and ARM9 is responsible for process software agreement and user oriented interface function.In whole system, baseband processor 108 as central control unit, is being controlled the running of whole system in system, and completes mutual with user, in debug process from data-interface transceiving data; Be exactly for data processing in addition on the one hand, baseband processor 108 completes the function of DSP, it has processed baseband digital signal, it is a simple digital module, DSP algorithm for the treatment of GSM/WCDMA/CDMA2000 system, the inside in the primary storage of whole system, the system of having stored is carried out the base program of basic AT order, and namely SRAM holder has stored system master data and has carried out the processing of various data.
The effect of network adapter detecting unit 1082 is, whether Sampling network adapter 104 is in normal operating state, if normal, Signal form translate unit 1081 work, digital signal after AD conversion unit 1031 conversions is processed, so that digital signal meets the instructions for use of network adapter 104.Same, Signal form translate unit 1081 can also be connected between network adapter 104 and D/A conversion unit 1032, with the signal that network adapter 104 is provided, is treated to the signal that digital-to-analogue format conversion unit can be used.
Good dot element or module in In-vehicle networking chromacoder provided by the present invention, can, by as 12v power supply or the 12v power supply that accesses by cigar lighter, power.
Further, In-vehicle networking chromacoder also comprises: power module, and power module comprises portable power source unit and voltage conversion unit; Portable power source unit is electrically connected to voltage conversion unit; Voltage conversion unit is electrically connected to D/A conversion unit 1032, AD conversion unit 1031, high frequency modulated unit 1022, high frequency demodulation unit 1021, Signal form translate unit 1081, network adapter detecting unit 1082 and power supply indicating member respectively.Whether power supply indicating member is used for showing whether voltage conversion unit normally works, can be specific amplitude by voltage transitions.
For the ease of In-vehicle networking chromacoder, move use, this device inside is also furnished with independently portable power source, namely portable power source unit.The voltage of considering the needed electric energy of each components and parts of In-vehicle networking chromacoder inside is different, the voltage of the electric energy that therefore need to provide portable power source unit by voltage conversion unit transforms, so that each power unit of voltage conforms after transforming or the needs of electricity consumption module.Because each power unit or the needed voltage of electricity consumption module may be also differentiated, so voltage conversion unit can arrange respectively a plurality of change-over circuits, with the power unit to different or electricity consumption module, power.As needing 4.2V voltage, signal strength signal intensity display unit, WIFI processor needs 5V voltage.
Further, power module also comprises USB charhing unit, and USB charhing unit is electrically connected to portable power source unit, and by the electric energy of portable power source unit is changed, outside to supply with, and needs the electrical equipment of charging, as mobile phone, computer etc.
For the ease of using, WIFI processor also comprises: WIFI reset switch;
WIFI reset switch is electrically connected to network adapter 104.
The effect of reset switch is that network adapter 104 is restarted, so that network adapter 104 its configuration informations of reduction, or by the data zero clearing of current operation.As reset switch being arranged between power conversion unit and network adapter 104, can be by stopping restarting network adapter 104 to the mode of network adapter 104 power supplies.Concrete, the signal of telecommunication that reset switch produces is not enough to control network adapter 104 and resets, and also needs WIFI reset switch to control restarting of network adapter 104 by CPU processor, and CPU processor herein can be QSD8650.
Except network adapter 104 is resetted, In-vehicle networking chromacoder also can also be comprised: system reset switch, D/A conversion unit 1032, AD conversion unit 1031, high frequency modulated unit 1022, high frequency demodulation unit 1021, Signal form translate unit 1081 and network adapter detecting unit 1082 are all electrically connected to voltage conversion unit by system reset switch.
The function class of the effect of system reset switch and WIFI reset switch seemingly, its for by D/A conversion unit 1032, AD conversion unit 1031, high frequency modulated unit 1022, high frequency demodulation unit 1021, Signal form translate unit 1081 and network adapter detecting unit 1082 just in service data, carry out zero clearing, reached the effect of restarting.
Further, In-vehicle networking chromacoder also comprises: SRAM holder and USB interface; SRAM holder is electrically connected to USB interface; SRAM holder is electrically connected to high frequency modulated unit 1022, high frequency demodulation unit 1021, AD conversion unit 1031 and D/A conversion unit 1032 respectively.
It should be noted that, SRAM holder is to be electrically connected to high frequency modulated unit 1022, high frequency demodulation unit 1021, AD conversion unit 1031 and D/A conversion unit 1032 respectively, and provide and store and the carrier of computing to unit, further, SRAM provides the function of budget and storage except other unit to In-vehicle networking chromacoder inside, can also utilize the ability of its storage, as read-write holder (portable hard drive), to extraneous user, provide the read-write capability of data.The function of SRAM: the internal memory while moving as system, storage ephemeral data, the SRAM with DDR2 in this product improves system operating rate.USB, SD interface are connected with SRAM by corresponding clock and data wire, and major function is for connecting USB flash disk, SD card and SRAM, makes it complete data communication.
The In-vehicle networking chromacoder that the embodiment of the present invention provides, it is by being provided with wireless receiving antenna, radio-frequency module, signal processor and WIFI processor, and radio-frequency module comprises high frequency modulated unit and high frequency demodulation unit, WIFI processor comprises network adapter and WIFI antenna, signal processor comprises D/A conversion unit and AD conversion unit, when wireless 3G signal need to be converted to WIFI signal, 3G dual-mode antenna receives wireless 3G signal, by high frequency demodulation unit, 3G signal is carried out to demodulation again, by radio-frequency module, comprise high frequency modulated unit and high frequency demodulation unit again, WIFI processor comprises network adapter and WIFI antenna, signal processor comprises that D/A conversion unit and AD conversion unit change the type of signal, by network adapter, data are encapsulated again, and then by WIFI antenna, thereby data are sent and realized 3G signal and be converted into WIFI signal, when needs are converted into 3G signal by WIFI signal, only need said process is reverse, just can complete the process that WIFI signal is converted into 3G signal, and finally by 3G antenna, signal is sent, thereby the mutual conversion of wireless 3G signal and WIFI signal and the function of transmission have been realized, and by being provided with first signal receiving element and secondary signal receiving element, make In-vehicle networking chromacoder can receive and change the signal of different systems, further, also be provided with network signal intensity display unit, make user can learn the intensity of current network signal, thereby the deficiencies in the prior art have better been solved.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for a person skilled in the art, the present invention can have various modifications and variations.Within the spirit and principles in the present invention all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. In-vehicle networking chromacoder, is characterized in that, comprising: 3G dual-mode antenna, radio-frequency module, signal processor and WIFI processor; Described radio-frequency module comprises high frequency modulated unit and high frequency demodulation unit, and described WIFI processor comprises network adapter and WIFI antenna, and described signal processor comprises D/A conversion unit and AD conversion unit;
3G dual-mode antenna, high frequency demodulation unit, AD conversion unit, network adapter and WIFI antenna are sequentially connected;
3G dual-mode antenna, high frequency modulated unit, D/A conversion unit, network adapter and WIFI antenna are sequentially connected.
2. In-vehicle networking chromacoder according to claim 1, is characterized in that, described WIFI processor also comprises IF processing unit and RF processing unit;
Described WIFI antenna, described RF processing unit, described IF processing unit and described network adapter are sequentially connected.
3. In-vehicle networking chromacoder according to claim 2, is characterized in that, described high frequency demodulation unit comprises first signal receiving element and secondary signal receiving element, and described signal processor comprises standard signal judging unit;
Described standard signal judging unit is electrically connected to described first signal receiving element and described secondary signal receiving element respectively;
Described first signal receiving element is connected between described 3G dual-mode antenna and described AD conversion unit;
Described secondary signal receiving element is connected between described 3G dual-mode antenna and described AD conversion unit.
4. In-vehicle networking chromacoder according to claim 3, it is characterized in that, also comprise display module, described display module comprises signal strength signal intensity display unit, described radio-frequency module also comprises: signal strength detection unit, and described signal processor also comprises signal strength signal intensity judge module;
Described signal strength detection unit is electrically connected to described first signal receiving element and described secondary signal receiving element respectively;
Described signal strength detection unit, described signal strength signal intensity judge module and described signal strength signal intensity display unit are sequentially connected.
5. In-vehicle networking chromacoder according to claim 4, is characterized in that, described display module also comprises: WIFI signal display module, WIFI signal detection module and WIFI indicating module;
Described WIFI signal display module, described WIFI signal detection module and described network adapter are sequentially connected;
Described WIFI indicating module is electrically connected to described D/A conversion unit and/or described AD conversion unit.
6. In-vehicle networking chromacoder according to claim 5, is characterized in that, also comprises: baseband processor, and described baseband processor comprises; Signal form translate unit and network adapter detecting unit;
Described Signal form translate unit is connected between described network adapter and described AD conversion unit;
Described network adapter detecting unit is connected between described network adapter and described Signal form translate unit.
7. In-vehicle networking chromacoder according to claim 6, is characterized in that, also comprises: power module, and described power module comprises portable power source unit, voltage conversion unit and power supply indicating member;
Described portable power source unit is electrically connected to described voltage conversion unit;
Described voltage conversion unit is electrically connected to described D/A conversion unit, described AD conversion unit, described high frequency modulated unit, described high frequency demodulation unit, Signal form translate unit, network adapter detecting unit and power supply indicating member respectively.
8. In-vehicle networking chromacoder according to claim 1, is characterized in that, described WIFI processor also comprises: WIFI reset switch;
Described WIFI reset switch is electrically connected to described network adapter.
9. In-vehicle networking chromacoder according to claim 7, it is characterized in that, also comprise: system reset switch, described D/A conversion unit, described AD conversion unit, described high frequency modulated unit, described high frequency demodulation unit, Signal form translate unit and network adapter detecting unit are all electrically connected to described voltage conversion unit by described system reset switch.
10. In-vehicle networking chromacoder according to claim 1, is characterized in that, also comprises: SRAM holder and USB storage;
Described USB storage is for being electrically connected to USB fetch equipment;
Described SRAM holder is electrically connected to described high frequency modulated unit, described high frequency demodulation unit, described AD conversion unit and described D/A conversion unit respectively.
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| CN107689663A (en) * | 2016-08-05 | 2018-02-13 | 安华高科技通用Ip(新加坡)公司 | Battery charging rack structure |
| CN106488033A (en) * | 2016-11-09 | 2017-03-08 | 上海斐讯数据通信技术有限公司 | The display packing of mobile terminal WIFI signal intensity, system and mobile terminal |
| CN110536489A (en) * | 2019-09-16 | 2019-12-03 | 李东东 | Signal modulus of conversion group |
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