CN210670577U - Multi-band wireless network bridge transmission device and transmission system - Google Patents
Multi-band wireless network bridge transmission device and transmission system Download PDFInfo
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- CN210670577U CN210670577U CN201922113158.0U CN201922113158U CN210670577U CN 210670577 U CN210670577 U CN 210670577U CN 201922113158 U CN201922113158 U CN 201922113158U CN 210670577 U CN210670577 U CN 210670577U
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Abstract
The utility model discloses a multi-band wireless network bridge transmission device and a transmission system, wherein the multi-band wireless network bridge transmission device comprises a router chip and an 802.11ah communication unit; the working frequency of the router chip is 2.4Ghz or 5 Ghz; the 802.11ah communication unit adopts an 802.11ah standard, and the working frequency band is less than 1 Ghz; the router chip outputs a control signal to the 802.11ah communication unit to control the 802.11ah communication unit to send or receive data; the 802.11ah communication unit sends the received data to the router chip; the utility model discloses a frequency of operation is 2.4G or 5G's router chip and realizes near field communication and compatible with mobile terminal, is less than 1 Ghz's 802.11ah communication unit through frequency of operation and realizes remote communication, realizes remote transmission simultaneously and compatible with mobile terminal.
Description
All as the field of technology
The utility model relates to a wireless communication technical field especially relates to a multifrequency section wireless network bridge transmission device and transmission system.
All the above-mentioned background techniques
Wireless Fidelity (WIFI) is a technology that allows an electronic device to connect to a Wireless local area network, and generally uses two Frequency bands, namely, 2.4G UHF (Ultra High Frequency) and 5G SHF (Super High Frequency) in an ISM (Industrial Scientific Medical) radio Frequency band, and the two Frequency bands, namely, 2.4G UHF (Ultra High Frequency) and 5G SHF (Super High Frequency), can be directly compatible with a mobile terminal such as a mobile phone. However, the frequency bands of 2.4GHz and 5GHz are high in frequency, and the attenuation of the WIFI signal is fast in the transmission process, so that the communication distance of the WIFI signal is short, and the anti-interference capability is poor.
With the development of wireless technology, the 802.11ah wireless standard has been widely applied to long-distance transmission due to the fact that the working frequency is less than 1GHz and the WIFI communication distance is long, but the 802.11ah wireless standard cannot be directly compatible with mobile terminals such as mobile phones.
How to simultaneously realize long-distance transmission and compatibility with a mobile terminal becomes a technical problem to be solved by the technical personnel in the field.
All the contents of the invention
The utility model discloses a first purpose aims at providing a multifrequency section wireless network bridge transmission device, realizes remote transmission simultaneously and compatible with mobile terminal.
For the first purpose of the utility model, the utility model discloses following technical scheme has been taken:
a multi-band wireless network bridge transmission device comprises a router chip and an 802.11ah communication unit; the working frequency of the router chip is 2.4Ghz or 5 Ghz; the 802.11ah communication unit adopts an 802.11ah standard, and the working frequency band is less than 1 Ghz; the router chip outputs a control signal to the 802.11ah communication unit to control the 802.11ah communication unit to send or receive data; the 802.11ah communication unit sends the received data to the router chip.
As a specific implementation manner, the router chip and the 802.11ah communication unit are in communication connection through an SDIO/USB interface.
As a specific implementation mode, the router chip transmits data through an RJ45/USB/PCIE interface.
Furthermore, the multi-band wireless network bridge transmission device also comprises a power supply management unit; the power management unit outputs 3.3V voltage to the router chip and the 802.11ah communication unit, and power is supplied to the router chip and the 802.11ah communication unit.
As a specific implementation, the 802.11ah communication unit includes a WIFI main control, a transmission channel, a reception channel, a transmission/reception switch, and an antenna; the signal output end of the WIFI master control is connected with the signal input end of the sending channel, and the signal output end of the sending channel is connected with the signal sending end of the sending/receiving switch; a signal receiving end of the sending/receiving switch is connected with a signal input end of the receiving channel, and a signal output end of the receiving channel is connected with a signal input end of the WIFI master control; the transmitting/receiving switch receives a switch control signal output by the WIFI master control and is in a transmitting state or a receiving state under the control of the switch control signal; the transmission channel is used for carrying out frequency reduction processing on the signals with the frequency equal to 2.4Ghz or 5Ghz output by the WIFI master control, and outputting the signals with the frequency less than 1Ghz to the transmission/reception switch; the receiving channel is used for performing frequency-up processing on the signals with the frequency less than 1Ghz received by the sending/receiving switch and outputting the signals with the frequency equal to 2.4Ghz or 5Ghz to the WIFI main control; the antenna is connected with the sending/receiving switch and used for sending and receiving signals.
As a specific implementation manner, the transmission channel includes a transmission mixer, a frequency synthesizer, a first band-pass filter and a power amplifier, and the transmission mixer, the first band-pass filter and the power amplifier are connected in sequence; the frequency synthesizer receives a frequency control signal output by the WIFI master control, and outputs a first local oscillation signal with a certain frequency to the sending frequency mixer under the control of the frequency control signal; the transmitting mixer receives a signal output by the WIFI master control, performs frequency subtraction on the signal output by the WIFI master control and a first local oscillation signal output by the frequency synthesizer, and outputs a signal subjected to frequency reduction to the first band-pass filter; the first band-pass filter is used for filtering the frequency-reduced signal; the first band-pass filter outputs the filtered signal to the power amplifier, and the power amplifier performs power amplification on the received signal and then sends the signal to the sending/receiving switch; and the transmitting/receiving switch transmits the received frequency-reduced signal through an antenna.
As a specific implementation manner, the receiving channel includes a low noise amplifier, a receiving mixer, a frequency synthesizer and a second band-pass filter, and the low noise amplifier, the second band-pass filter and the receiving mixer are connected in sequence; the transmitting/receiving switch receives the frequency-reduced signal received by the antenna and transmits the frequency-reduced signal to the low-noise amplifier; the low-noise amplifier performs low-noise amplification processing on the received signal and sends the amplified signal to a second band-pass filter; the second band-pass filter filters the signal and outputs the filtered signal to the receiving mixer; the frequency synthesizer receives a frequency control signal output by the WIFI master control, and outputs a second local oscillation signal with a certain frequency to the receiving mixer under the control of the frequency control signal; and the receiving mixer performs frequency addition on the signal output by the second band-pass filter and the second local oscillator signal, and outputs the signal subjected to frequency increase to the WIFI master control.
A second object of the present invention is to provide a multi-band wireless network bridge transmission system, which is compatible with mobile terminals and capable of realizing remote transmission.
For the second purpose of the utility model, the utility model adopts the following technical proposal:
a multi-frequency multi-band wireless network bridge transmission device.
The utility model discloses beneficial effect:
according to the above technical scheme, the utility model discloses a frequency of operation is 2.4G or 5G's router chip and realizes near field communication and compatible with mobile terminal, is less than 10 hz's 802.11ah communication unit through frequency of operation and realizes remote communication, realizes remote transmission simultaneously and compatible with mobile terminal.
Description of the drawings
In order to more clearly illustrate the embodiments of the present invention, the drawings used in the embodiments will be briefly described below. The drawings in the following description are only examples of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts.
Fig. 1 is a schematic structural diagram of a multiband wireless network bridge transmission apparatus provided in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an 802.11ah communication unit according to an embodiment of the present invention.
(specific embodiments) in all cases
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1, a multi-band wireless bridge transmission device includes a router chip and an 802.11ah communication unit; the working frequency of the router chip is 2.4Ghz or 5 Ghz; the 802.11ah communication unit adopts an 802.11ah standard, and the working frequency band of the communication unit is less than 1 Ghz; the router chip receives data from interfaces such as RJ45, USB and PCIE, and communicates with mobile terminals such as mobile phones and computers; the router chip is connected with the 802.11ah communication unit through an interface (SDIO/USB), outputs a control signal to the 802.11ah communication unit and controls the 802.11ah communication unit to send or receive data; the 802.11ah communication unit sends the received data to the router chip, and then the router chip transmits the data to the mobile terminal.
In this embodiment, the operating frequency of the router chip is 2.4Ghz or 5Ghz, which is not only used for implementing short-distance communication, but also used for implementing communication with mobile terminals such as mobile phones and computers; the working frequency of the 802.11ah communication unit is less than 1Ghz, and the 802.11ah communication unit is not only used for realizing long-distance communication, but also used for realizing communication with mobile terminals such as mobile phones and computers through communication connection with the router chip.
In this embodiment, the router chip is MT7628AN model.
As shown in fig. 1, the multi-band wireless bridge transmission apparatus further comprises a power management unit; the power management unit receives a voltage of 5V or 12V, outputs a voltage of 3.3V to the router chip and the 802.11ah communication unit, and provides power for the router chip and the 802.11ah communication unit.
As shown in fig. 2, in this embodiment, the 802.11ah communication unit includes a WIFI main control, a transmitting channel, a receiving channel, a transmitting/receiving switch, and an antenna; the control signal input end of the WIFI master control is connected with the control signal output end of the router chip, receives the control signal output by the router chip, and sends or receives data under the control action of the control signal output by the router chip; the data output end of the WIFI master control is connected with the data input end of the router chip, and the received data are sent to the router chip; the signal output end of the WIFI master control is connected with the signal input end of the sending channel, and the signal output end of the sending channel is connected with the signal sending end of the sending/receiving switch; a signal receiving end of the sending/receiving switch is connected with a signal input end of the receiving channel, and a signal output end of the receiving channel is connected with a signal input end of the WIFI master control; the transmitting/receiving switch receives a switch control signal output by the WIFI master control, is in a transmitting state or a receiving state under the control of the switch control signal, and when the transmitting/receiving switch is in the transmitting state, the WIFI signal output by the WIFI master control is subjected to frequency reduction processing by a transmitting channel, the transmitting/receiving switch transmits the frequency-reduced signal to an antenna, and then the antenna transmits the frequency-reduced signal; when the transmitting/receiving switch is in a receiving state, the transmitting/receiving switch receives the frequency-reduced signal from the antenna, the receiving channel receives the frequency-reduced signal from the transmitting/receiving switch, and the frequency-reduced signal is transmitted to the WIFI main control after being frequency-increased.
As shown in fig. 2, in the present embodiment, the transmission channel includes a transmission mixer, a frequency synthesizer, a first band-pass filter, and a power amplifier, and the transmission mixer, the first band-pass filter, and the power amplifier are connected in sequence; the frequency synthesizer receives a frequency control signal output by the WIFI master control, and outputs a first local oscillation signal with a certain frequency to the sending frequency mixer under the control of the frequency control signal; the sending mixer receives a signal output by the WIFI master control, performs frequency subtraction on the signal output by the WIFI master control and a first local oscillation signal output by the frequency synthesizer, and outputs a signal subjected to frequency reduction to the first band-pass filter; the first band-pass filter is used for filtering the frequency-reduced signal; the first band-pass filter outputs the filtered signal to the power amplifier, and the power amplifier performs power amplification on the received signal and then sends the signal to the sending/receiving switch; the sending/receiving switch sends out the received signal after frequency reduction through the antenna.
As shown in fig. 2, in the present embodiment, the receiving channel includes a low noise amplifier, a receiving mixer, a frequency synthesizer and a second band-pass filter, and the receiving channel and the transmitting channel share the frequency synthesizer; the low noise amplifier, the second band-pass filter and the receiving mixer are connected in sequence; the sending/receiving switch receives the frequency-reduced signal received by the antenna and sends the frequency-reduced signal to the low-noise amplifier; the low-noise amplifier performs low-noise amplification processing on the received signal and sends the amplified signal to a second band-pass filter, and the second band-pass filter performs filtering processing on the amplified signal and sends the filtered signal to a receiving mixer; the frequency synthesizer receives a frequency control signal output by the WIFI master control, outputs a second local oscillation signal with a certain frequency to the receiving mixer under the control of the frequency control signal, the receiving mixer carries out frequency addition on the signal output by the second band-pass filter and the second local oscillation signal, and outputs the signal after frequency increase to the WIFI master control.
In this embodiment, the frequency of the signal output by the WIFI master is 2.4Ghz or 5Ghz, the frequency of the frequency-reduced signal output by the transmission channel is less than 1Ghz, and the frequency of the frequency-increased signal output by the reception channel is equal to 2.4Ghz or 5 Ghz; the first local oscillator signal has the same frequency as the second local oscillator signal, that is, the frequency value added when the receiving channel performs frequency up processing on the frequency down-converted signal is equal to the frequency added when the transmitting channel performs frequency down processing on the frequency up-converted signal.
In this embodiment, the multi-band Wireless bridge transmission apparatus is applied to both an AP (Wireless access point) and an STA (station), and the structures of the multi-band Wireless bridge transmission apparatuses adopted in the AP and the STA are the same. After the multi-band wireless network bridge transmission device at the AP end is powered on, the AP end is in a broadcast state and waits for the access of the STA end. After the STA terminal is powered on, a target AP terminal is scanned by a 2.4Ghz or 5Ghz signal connected to a router chip through a mobile terminal such as a mobile phone or a computer, and a correct SSID (Service Set Identifier) is input to establish a connection relationship with the AP terminal, so as to perform data transmission.
The above is only the preferred embodiment of the present invention, the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention all belong to the protection scope of the present invention. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (9)
1. A multi-band wireless bridge transmission apparatus, characterized in that: the router comprises a router chip and an 802.11ah communication unit; the working frequency of the router chip is 2.4Ghz or 5 Ghz; the 802.11ah communication unit adopts an 802.11ah standard, and the working frequency band is less than 1 Ghz; the router chip outputs a control signal to the 802.11ah communication unit to control the 802.11ah communication unit to send or receive data; the 802.11ah communication unit sends the received data to the router chip.
2. The multiband wireless bridge transmission apparatus of claim 1, wherein: the router chip is in communication connection with the 802.11ah communication unit through an SDIO/USB interface.
3. The multiband wireless bridge transmission apparatus of claim 1, wherein: the router chip transmits data through the RJ45/USB/PCIE interface.
4. The multiband wireless bridge transmission apparatus of claim 1, wherein: the multi-band wireless network bridge transmission device also comprises a power supply management unit; the power management unit outputs 3.3V voltage to the router chip and the 802.11ah communication unit, and power is supplied to the router chip and the 802.11ah communication unit.
5. The multiband wireless bridge transmission apparatus of any one of claims 1 to 4, wherein: the model of the router chip is MT7628 AN.
6. The multiband wireless bridge transmission apparatus of any one of claims 1 to 4, wherein: the 802.11ah communication unit comprises a WIFI master control, a sending channel, a receiving channel, a sending/receiving switch and an antenna; the signal output end of the WIFI master control is connected with the signal input end of the sending channel, and the signal output end of the sending channel is connected with the signal sending end of the sending/receiving switch; a signal receiving end of the sending/receiving switch is connected with a signal input end of the receiving channel, and a signal output end of the receiving channel is connected with a signal input end of the WIFI master control; the transmitting/receiving switch receives a switch control signal output by the WIFI master control and is in a transmitting state or a receiving state under the control of the switch control signal; the transmitting channel is used for carrying out frequency reduction processing on the signal output by the WIFI master control, and outputting a signal with the frequency less than 1Ghz to the transmitting/receiving switch; the receiving channel is used for performing frequency-up processing on the signals with the frequency less than 1Ghz received by the sending/receiving switch and outputting the frequency-up signals to the WIFI master control; the antenna is connected with the sending/receiving switch and used for sending and receiving signals.
7. The multiband wireless bridge transmission apparatus of claim 6, wherein: the transmitting channel comprises a transmitting mixer, a frequency synthesizer, a first band-pass filter and a power amplifier, wherein the transmitting mixer, the first band-pass filter and the power amplifier are sequentially connected; the frequency synthesizer receives a frequency control signal output by the WIFI master control, and outputs a first local oscillation signal with a certain frequency to the sending frequency mixer under the control of the frequency control signal; the transmitting mixer receives a signal output by the WIFI master control, performs frequency subtraction on the signal output by the WIFI master control and a first local oscillation signal output by the frequency synthesizer, and outputs a signal subjected to frequency reduction to the first band-pass filter; the first band-pass filter is used for filtering the frequency-reduced signal; the first band-pass filter outputs the filtered signal to the power amplifier, and the power amplifier performs power amplification on the received signal and then sends the signal to the sending/receiving switch; and the transmitting/receiving switch transmits the received frequency-reduced signal through an antenna.
8. The multiband wireless bridge transmission apparatus of claim 6, wherein: the receiving channel comprises a low noise amplifier, a receiving mixer, a frequency synthesizer and a second band-pass filter, and the low noise amplifier, the second band-pass filter and the receiving mixer are connected in sequence; the transmitting/receiving switch receives the frequency-reduced signal received by the antenna and transmits the frequency-reduced signal to the low-noise amplifier; the low-noise amplifier performs low-noise amplification processing on the received signal and sends the amplified signal to a second band-pass filter; the second band-pass filter filters the signal and outputs the filtered signal to the receiving mixer; the frequency synthesizer receives a frequency control signal output by the WIFI master control, and outputs a second local oscillation signal with a certain frequency to the receiving mixer under the control of the frequency control signal; and the receiving mixer performs frequency addition on the signal output by the second band-pass filter and the second local oscillator signal, and outputs the signal subjected to frequency increase to the WIFI master control.
9. A transmission system using the multiband wireless bridge transmission apparatus of any one of claims 1 to 8, characterized in that: including an AP and at least one STA; the AP and the STA both comprise the multi-band wireless bridge transmission device.
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|---|---|---|---|---|
| CN114375021A (en) * | 2021-12-17 | 2022-04-19 | 北京小米移动软件有限公司 | Relay communication method, device, relay equipment, terminal and storage medium |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114375021A (en) * | 2021-12-17 | 2022-04-19 | 北京小米移动软件有限公司 | Relay communication method, device, relay equipment, terminal and storage medium |
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Assignee: Hengqin Financial Investment International Finance Leasing Co.,Ltd. Assignor: ZHUHAI HUGE-IC Co.,Ltd. Contract record no.: X2022980021406 Denomination of utility model: A Multi band Wireless Bridge Transmission Device and Transmission System Granted publication date: 20200602 License type: Exclusive License Record date: 20221115 |
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Denomination of utility model: A Multi band Wireless Bridge Transmission Device and Transmission System Effective date of registration: 20221118 Granted publication date: 20200602 Pledgee: Hengqin Financial Investment International Finance Leasing Co.,Ltd. Pledgor: ZHUHAI HUGE-IC Co.,Ltd. Registration number: Y2022980022397 |