CN104023420A - Novel WiFi-VHF WVB - Google Patents

Abstract

The invention provides a wireless bridge for building WiFi and VHF communication in the wireless communication field, and particularly relates to a novel WiFi-VHF WVB. By means of the novel WiFi-VHF WVB technology and product, the applied range of a radio telephone and a mobile phone can be greatly expanded, the mobile phone service function can be strengthened, particularly in the paroxysmal disaster emergency meeting environment, wireless communication can still be achieved with the WVB and a VHF even though mobile phone signals and mobile phone networks are disconnected, the Wechat function of the mobile phone is kept, and disaster relieving and emergency response processing are normally carried out. Besides the emergency communication function for emergencies, mobile wireless link between the mobile phone WiFi and the VHF wireless network can be further built through the WVB, and a user can directly use the WVB to be connected with the mobile phone to seek for helps even in the environment without mobile phone signal coverage.

Description

Novel WiFi-VHF wireless mobile bridge (WVB)

Technical field

Patent of the present invention belongs to and comprises technological invention and by the multiple application deriving.The core of universities and colleges is that proposition is a kind of in wireless communication field, sets up the wireless bridge of WiFi and mobile telephone system VHF, referred to as WVB wireless bridge.Adopt this novel wireless bridge technology and product, can greatly expand the range of application of radio telephone and mobile phone, strengthen cellular service function, particularly in paroxysmal disaster emergency environment, when mobile phone signal and network interruption, utilize the wireless-transmission network of the VHF (mobile telephone hand-held set) of this patent proposition, can continue to keep micro-letter communication function of mobile phone, guarantee normally carrying out of the disaster relief and emergency reaction and processing.

Background technology

In the current and following wireless communication system, wireless phone and WiFi network are the main carriers of setting up radio communication and MMS (Multimedia Message Service), and most of mobile phone all can be gone up WiFi network, and most of user can skillfully use micro-letter communication interface quasi real time.Yet in remote districts, the area that does not have mobile phone signal to cover completely, under the environment in car and boat travelling, while particularly there is the emergency of geology disaster burst, the communication of mobile phone will be interrupted completely.Now people rely on VHF wireless network and mobile telephone hand-held set is kept in touch more.The situation of VHF mobile telephone hand-held set wireless application is that a plurality of users share a wireless channel, it is mainly semiduplex voice call, communication distance can cover 50 kilometers, but must be to only have a teller to speak, can not everybody speak simultaneously, require everyone to observe same rule, obtain the floor one by one, after finishing speaking, pass to next spokesman.Obviously, such communication efficiency is very low.WiFi-VHF wireless bridge WVB new technology and product that this patent proposes, allow exactly user in remote districts or disaster emergency, can continue to use micro-letter communication interface of mobile phone, by WVB wireless network, keep high efficiency communications status, the mobile phone that utilization is carried, just completes high efficiency, to have speech and character communication.

Summary of the invention

The new method that this patent proposes, core is by a kind of novel radio bridge product, be referred to as WVB, set up the wireless link between mobile phone WiFi and VHF wireless network, user is not being had under the environment of mobile phone signal covering or disaster emergency, directly with WVB wireless bridge, connect mobile phone, in VHF network, can use the communication mode that is different from traditional mobile telephone, flexibly, convenient and efficiently information exchange is crossed to mobile phone and received and transfer out.

Wireless bridge WVB is a little module working alone, and adopts the on-link mode (OLM) of WiFi wireless signal between it and mobile phone, and transmit-receive mobile phone information, also comprises WiFi information process unit.Aspect transmission, it adopts VHF digital modems, under the environment of low-power consumption, keep 50 kilometers with interior wireless transmission distance, complete transmitting arbitration standard simultaneously, solve the problem of half-duplex poor efficiency, the bidirectional transfer of information with the micro-letter of mobile phone interface, by wireless bridge and VHF network separately, can be realized in a plurality of like this WiFi community.

Wireless bridge WVB is also supported on UART interface and is connected with Big Dipper communication terminal when completing VHF digital communication, realize the character communication between mobile phone, people can be easily at the enterprising line character talk of micro-letter window, the further like this transmission range that improved, has strengthened the communication capacity under disaster emergency environment.

Because wireless bridge is the equipment of a small-sized dexterity, the feature with low-power consumption, the energy that makes small-sized solar power supply board just can provide long-distance transmissions to need, therefore can be together with VHF antenna fixed placement in the area that does not have mobile phone signal to cover, also can be placed in all kinds of automobiles, train and mobile transit equipment, or carry.

In addition, the WiFi interface on wireless bridge is also supported RFID function, now each end points mobile phone not necessarily just, can be the RFID of WiFi interface, can realize logistics like this, the security monitoring of personnel and livestock, location and tracking, complete the business service that logistics management is relevant with Internet of Things.

Accompanying drawing explanation

Multifunction wireless moves bridge WVB shown in patent accompanying drawing.This mini-system model representing in figure can be served several cellphone subscribers simultaneously, also can use VHF data network and Big Dipper communication terminal data-interface.

Wireless bridge module is comprised of following 4 parts:

1.SOC module: comprise local embedded server, WiFi data transmit-receive, VHF data transmit-receive, packet-switching and processing, VHF half-duplex sends arbitration.

2.WiFi module comprises: be responsible for access and the output of WiFi information

3.USB/SD/MEMC memory module: standard storage interface

4.RF module and Big Dipper communication terminal interface: by the information processings such as upconversion process, frequency synthesis and pre-distorting power amplifier of VHF, complete the wireless data transmission of programmable frequency point.

Embodiment

Multifunction wireless moves 4 modules of bridge WVB, and their embodiment is as follows:

1.SOC module execution mode: local embedded server is set, completes and comprise WiFi data transmit-receive, VHF data transmit-receive, packet-switching and processing, VHF half-duplex sends arbitration.Specifically be implemented as follows

Set up local embedded server:

The hardware platform of a home server of framework, completes the data in WiFi and handset switch local storage, and these data of processing can be word, speech etc.

Framework embedded server, the data by SPI interface and RF module exchange local storage, make RF module by less radio-frequency mouth or big-dipper satellite data-interface, further complete the communication that receives and launch.

Framework embedded server, to process in local storage the data of receiving from WiFi and two different directions of RF module, completes the adaptive and exchange of data, completes data filtering simultaneously, encrypts, and VHF launches arbitration.

Will on mobile phone, download and install special-purpose software, by WiFi and local embedded server, connect, the data that make to write down notes enter embedded server by Wi-Fi.

2.WiFi module execution mode: complete the access of WiFi information and output

Framework multiple input/multiple output (MIMO) radio-frequency front-end subsystem, completes the information transmitting of wireless bridge and reception.This system adopts small-power and high efficiency radio frequency structure, completes the transmitting of high efficiency signal and highly sensitive reception, comprises and uses high efficiency power amplifier design, and the signal transmitting range of wireless bridge and signal cover are expanded.

The RF front-end module of (MIMO) is inputted, exported more to framework more, and realize transmitted in both directions with embedded server.

3.USB/SD/MEMC memory module execution mode:

This module can be used existing embedded server SOC chip in the market, by programmable control, is realized above-mentioned standard storage interface is supported, settling signal is processed.

4.RF module and Big Dipper communication terminal interface execution mode:

Framework VHF up-converter circuit, comprises frequency synthesizer and pre-distorting power amplifier, completes the wireless data transmission of programmable frequency point.

Design VHF low-noise receiver, and complete high-sensitive signal reception, increase VHF coverage.

Architecture digital intermediate frequency Modulation demodulator, this device is the traditional mobile telephone simulated voice FM modulator-demodulator of compatibility simultaneously.

Set up and embedded server between SPI data-interface, want simultaneously can with the UART interface communication of Big Dipper communication terminal.

The 2 large outstanding features that this patent embodies:

1), by advanced person's wireless interconnected network technology, high efficiency radio-frequency receiving-transmitting technology, embedded server SOC treatment technology, high density storage products etc., combine with mobile phone application, release multifunction wireless design of net bridge and product.

2) concept of WiFi-VHF bridge is introduced to the field of mobile phone and traditional mobile telephone hand-held set, make people's call and communication high efficiency more in the situation that of uncovered remote districts or disaster emergency, variation, further development just can replace now widely used mobile telephone intercom system.

The outstanding advantages that this patent derives product is the communication efficiency problem that has solved advantage telephone system mobile telephone.In at present based on mobile telephone hand held mobile phone system, mobile telephone can be organized VHF voice network, but there is the problem of a most critical to be exactly, when 10 to 30 people are locked in when thing being discussed in same frequency range, need to there is custodian's arbitration, who is the speaker of next wheel, after finishing speaking, also will exit, and continues arbitration.Therefore, when 30 people circle of making a speech, approximately need one hour, efficiency is extremely low, lose time, and problem is often discussed not thorough.

The wireless bridge WVB proposing based on this patent and the WiFi-VHF and data packet transmission technology and the product that form, can allow everyone use existing mobile phone, on the window setting at native system, directly talk, typewrite, then embedded server can be according to software handshake standard, automatically send data and enter everyone mobile phone, thereby without artificial arbitration.In this system, everyone can make a speech simultaneously, can show full complement's speech at mobile phone window, then selects to listen to.Everyone only has a few minutes at the circle of making a speech, and efficiency of transmission improves more than ten times, and full content is all recorded in everyone mobile phone.In processing the management of emergent disaster, high efficiency WiFi-VHF network advantage shows outstanding.However, traditional mobile telephone function is all retained, by user's choice for use.

Claims (6)

1. The described WiFi-VHF wireless bridge of this patent WVB technology and product, rights protection scope contains:

   1. with WiFi radio communication, be converted to design, the flow process of VHF digital wireless communication, data conversion treatment, the interface control method of the arbitration of half-duplex transfer of data, embedded server.
2. 2. with WiFi wave point, be converted to the flow process of satellite communication terminal data UART interface, and comprise translation data processing and control for satellite data stations, big-dipper satellite data-interface.
3. 3. the WVB data flow con-trol based on 1. and 2., by the conversion completing from WiFi to VHF, and the conversion from WiFi to satellite data interface.
4. 4. the embedded server based on 3. (WVB SOC), by controlling the transfer of data of VHF, to overcome the half-duplex problem of transfer of data.
5. Based on using 1. in following wireless system～method and technology path 4.:

   (1), based on bluetooth (Bluetooth), all kinds of mobile phone, mobile phone, mobile terminal, Portable hand computer, WiFi correlation technique and product, can be accessed by technology and the product of wireless and satellite network.

   (2) to wireless network and the product of the relevant all kinds of fixed communication terminals of VHF (phone that mobile telephone is capable).

   (3) with all kinds of satellite communication systems, as wireless connect technology and the Related product of big-dipper satellite location and other satellite GPS location.

   (4) multimedia transmission correlation technique and product, comprise as wireless Internet, Internet of Things etc.
6. Based on 1.～product, attached device, device and equipment that method 4. and technology path are developed:

   (1) be furnished with the microphone of WVB technology, wired and wireless headset acoustic product.

   (2) be furnished with external large display screen, the keyboard of WVB technology.

   (3) be furnished with all kinds of GPS navigation and the global position system of WVB technology.

   (4) adopt the RFID recognition and tracking module product of WVB technology and video, the audio parts product of security monitoring.