CN217957197U - WiFi television realization device capable of realizing large-range coverage based on coaxial network cable - Google Patents
WiFi television realization device capable of realizing large-range coverage based on coaxial network cable Download PDFInfo
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- CN217957197U CN217957197U CN202220492347.2U CN202220492347U CN217957197U CN 217957197 U CN217957197 U CN 217957197U CN 202220492347 U CN202220492347 U CN 202220492347U CN 217957197 U CN217957197 U CN 217957197U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model discloses a wiFi TV realization device that covers on a large scale based on coaxial cable for cover television equipment on a large scale, including first converter, second converter and coaxial cable, the transceiver antenna and the wireless router communication connection of first converter and the first axle head of first converter with the one end electric connection of coaxial cable, the second of second converter with the axle head with the other end electric connection of coaxial cable and the transceiver antenna and the television equipment communication connection of second converter. The utility model discloses a wiFi TV realization device that covers on a large scale based on coaxial network line, wireless router adopt 5.8 GHz's frequency channel, adopt coaxial network line supplementary when indoor each different room carries out wiFi and covers to carry out the transmission of wiFi signal through the converter, thereby reach the effect that covers on a large scale.
Description
Technical Field
The utility model belongs to the technical field of wiFi signal transmission, concretely relates to wiFi TV realization device based on coaxial cable carries out coverage on a large scale.
Background
At present, all applications of the internet are not based on a broadband access network, so far, four operators in China, such as telecom, unicom, mobile and radio and television, carry out continuous investment construction in a home broadband access network, the home access bandwidth reaches 50-100Mbps, along with the development of home use terminals from desktop personal computers and notebook computers to diversified intelligent terminals such as tablet computers, smart phones and smart televisions, WIFI wireless AP becomes a necessary home network connection standard for accessing the internet of various intelligent terminals, because wireless connection provides convenience for moving and connecting for user terminals, users generally adopt and even become a main broadband connection mode of the home network.
The WIFI (same as WiFi) wireless AP equipment adopts an IEEE802.11a/b/g/n/ac wireless data communication protocol, the working frequency is 2.4GHz or 5.8GHz, the unobstructed coverage radius of a WIFI wireless signal is generally in the range of 50-100 meters, but the use radius of the WIFI wireless signal is reduced due to the fact that the wireless signal is greatly attenuated due to a partition wall between rooms in a family, and the wireless signal of the WIFI wireless AP equipment in the family cannot guarantee the good coverage of signals of all rooms in the family. For a house type family with a general area of less than 120 square meters, the wireless signal coverage of 1 WIFI wireless AP device is basically feasible, but for a house type with a duplex house type of more than 200 square meters or a house type with 3 floors of more than 300 square meters, a rural house and the like, the wireless signal coverage of all rooms is weak or even cannot be realized by adopting 1 WIFI wireless AP device, the existing simple method is to increase the number of WIFI wireless AP devices to supplement the signal coverage, which is a simple method but not an economic and reasonable scheme, the installation of a plurality of WIFI wireless AP devices still involves the configuration of cascade or bridge network connection among the devices and the problem of working channel frequency related interference, the connection or application interruption caused by switching APs when a terminal roams, and the use, management and maintenance are inconvenient.
Although the WiFi television and other devices are convenient to use, the bandwidth is small due to the adoption of 2.4GHz, and the coverage is small due to the weak wall penetrating capability of the 5.8 GHz. Therefore, the above problems are further improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a wiFi TV realization device that covers on a large scale based on coaxial network line, wireless router adopt 5.8 GHz's frequency channel, and it is supplementary to adopt coaxial network line when indoor each different room carries out wiFi and covers to carry out the transmission of wiFi signal through the converter, thereby reach the effect that covers on a large scale.
To achieve the above object, the present invention provides a WiFi television implementing device based on a coaxial cable for covering a television device on a large scale, including a first converter, a second converter (the first converter and the second converter are the same, used in pairs, the first converter is installed in a room provided with a wireless router and the second converter is installed in a room provided with a television device) and a coaxial cable, the transceiver antenna of the first converter is in communication connection with the wireless router and the first coaxial end of the first converter is in electric connection with one end of the coaxial cable, the second coaxial end of the second converter is in electric connection with the other end of the coaxial cable (the end far away from the first converter) and the transceiver antenna of the second converter is in communication connection with the television device, wherein:
the first converter comprises a first branch device, a first receiving signal branch device, a first transmitting signal branch device and a fourth branch device, wherein the first receiving signal branch device and the first transmitting signal branch device are respectively connected between the first branch device and the fourth branch device, one end of the first branch device, far away from the fourth branch device, is connected with a receiving and transmitting antenna, and one end of the fourth branch device, far away from the first branch device, is connected with a first coaxial end;
the second converter comprises a second branch, a second receiving signal branch, a second transmitting signal branch and a third branch, the second receiving signal branch and the second transmitting signal branch are respectively connected between the second branch and the third branch, one end of the third branch, far away from the second branch, is connected with a transceiving antenna, and one end of the second branch, far away from the third branch, is connected with a second coaxial end.
As a further preferred technical solution of the above technical solution, the first receiving signal branch is connected with the second transmitting signal branch, wherein:
the first receiving signal branch comprises a first high-speed ADC module and a first modulation module, a first connection end of the first branch is electrically connected with an input end of the first high-speed ADC module, an output end of the first high-speed ADC module is electrically connected with an input end of the first modulation module, and an output end of the first modulation module is electrically connected with a first connection end of the fourth branch;
the second transmitting signal branch comprises a second demodulation module and a second high-speed DAC module, a second connecting end of the second splitter is electrically connected with an input end of the second demodulation module, an output end of the second demodulation module is electrically connected with an input end of the second high-speed DAC module, and an output end of the second high-speed DAC module is electrically connected with a second connecting end of the third splitter.
As a further preferable technical solution of the above technical solution, the second receiving signal branch is connected to the first transmitting signal branch, wherein:
the second receiving signal branch comprises a second high-speed ADC module and a second modulation module, the first connection end of the third splitter is electrically connected with the input end of the second high-speed ADC module, the output end of the second high-speed ADC module is electrically connected with the input end of the second modulation module, and the output end of the second modulation module is electrically connected with the first connection end of the second splitter;
the first transmitting signal branch comprises a first demodulation module and a first high-speed DAC module, the second connection end of the fourth branch is electrically connected with the input end of the first demodulation module, the output end of the first demodulation module is electrically connected with the input end of the first high-speed DAC module, and the output end of the first high-speed DAC module is electrically connected with the second connection end of the first branch.
As a further preferable technical solution of the above technical solution, the first converter and the second converter each include a conversion chip U1 (a chip includes a signal transmitting branch and a signal receiving branch, that is, it has functions of ADC conversion, modulation, demodulation and DAC conversion) and a power chip U9, and the conversion chip U1 and the power chip U9 are electrically connected.
As a further preferred technical solution of the above technical solution, the 28 pins of the conversion chip U1 are electrically connected to the 3 pins of the transformer T1 through a capacitor C5, the 29 pins of the conversion chip U1 are electrically connected to the 1 pin of the transformer T1 through a capacitor C4, a resistor R1 is connected between the 4 pins and the 6 pins of the transformer T1, and the 4 pins of the transformer T1 are electrically connected to the connector J6 through a capacitor C1;
the 11 pins of the conversion chip U1 are electrically connected with the 3 pins of the transformer T2 through a capacitor C33 and the 12 pins of the conversion chip U1 are electrically connected with the 1 pin of the transformer T2 through a capacitor C34, a resistor R30 is connected between the 4 pins and the 6 pins of the transformer T1 and the 4 pins of the transformer T2 are electrically connected with a connector J5 through a capacitor C17 (the transformer T1 and the transformer T2 represent splitters and the connector J5 is used for connecting an antenna or a coaxial network line).
Drawings
Fig. 1 is the utility model discloses a WiFi television realizes device's structural schematic diagram that covers on a large scale based on coaxial cable.
Fig. 2 is the utility model discloses a WiFi television realizes device's conversion chip's relevant circuit diagram based on coaxial cable carries out covering on a large scale.
Fig. 3 is the utility model discloses a WiFi television realizes device's power chip's relevant circuit diagram carries out to cover on a large scale based on coaxial cable.
Detailed Description
The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art. The basic principles of the invention, as defined in the following description, may be applied to other embodiments, variations, modifications, equivalents and other technical solutions without departing from the spirit and scope of the invention.
The utility model discloses a wiFi TV realization device that covers on a large scale based on coaxial network line combines preferred embodiment below, does further description to utility model's embodiment.
In the embodiments of the present invention, those skilled in the art will note that the wireless router, television device, and the like of the present invention can be regarded as the prior art.
Preferred embodiments.
The utility model discloses a wiFi TV realization device that covers on a large scale based on coaxial cable for cover television equipment on a large scale, including first converter, second converter (first converter and second converter are the same, use in pairs, first converter install in the room that is equipped with wireless router and the room that is equipped with television equipment is installed to the second converter) and coaxial cable, the transmit-receive antenna and the wireless router communication connection of first converter and the first coaxial end of first converter with the one end electric connection of coaxial cable, the second coaxial end of second converter with the other end (the one end of keeping away from first converter) electric connection of coaxial cable and the transmit-receive antenna and television equipment communication connection of second converter, wherein:
the first converter comprises a first branch device, a first receiving signal branch device, a first transmitting signal branch device and a fourth branch device, wherein the first receiving signal branch device and the first transmitting signal branch device are respectively connected between the first branch device and the fourth branch device, one end of the first branch device, far away from the fourth branch device, is connected with a receiving and transmitting antenna, and one end of the fourth branch device, far away from the first branch device, is connected with a first coaxial end;
the second converter comprises a second branch, a second receiving signal branch, a second transmitting signal branch and a third branch, the second receiving signal branch and the second transmitting signal branch are respectively connected between the second branch and the third branch, one end, far away from the second branch, of the third branch is connected with the transceiving antenna, and one end, far away from the third branch, of the second branch is connected with a second coaxial end.
Specifically, the first receiving signal branch is connected to the second transmitting signal branch, where:
the first receiving signal branch comprises a first high-speed ADC module and a first modulation module, a first connection end of the first branch is electrically connected with an input end of the first high-speed ADC module, an output end of the first high-speed ADC module is electrically connected with an input end of the first modulation module, and an output end of the first modulation module is electrically connected with a first connection end of the fourth branch;
the second transmitting signal branch comprises a second demodulation module and a second high-speed DAC module, a second connection end of the second splitter is electrically connected with an input end of the second demodulation module, an output end of the second demodulation module is electrically connected with an input end of the second high-speed DAC module, and an output end of the second high-speed DAC module is electrically connected with a second connection end of the third splitter.
It is worth mentioning that, in the process of WiFi signal downlink, the WiFi signal sent by the wireless router is received by the transceiving antenna of the first converter, then transmitted to the first receiving signal branch through the first splitter, and transmitted to the coaxial network cable after being converted and modulated, received by the second transmitting signal branch of the second converter, and restored into the WiFi signal after being demodulated and converted, then transmitted through the transceiving antenna of the second converter, and then received by the WiFi connection equipment such as the television equipment, so as to be covered, the second converter can be installed in the room provided with the television equipment through the coaxial network cable, thereby realizing the flexible coverage of WiFi.
More specifically, the second receiving signal branch is connected to the first transmitting signal branch, wherein:
the second receiving signal branch comprises a second high-speed ADC module and a second modulation module, the first connection end of the third splitter is electrically connected with the input end of the second high-speed ADC module, the output end of the second high-speed ADC module is electrically connected with the input end of the second modulation module, and the output end of the second modulation module is electrically connected with the first connection end of the second splitter;
the first transmitting signal branch comprises a first demodulation module and a first high-speed DAC module, the second connection end of the fourth branch is electrically connected with the input end of the first demodulation module, the output end of the first demodulation module is electrically connected with the input end of the first high-speed DAC module, and the output end of the first high-speed DAC module is electrically connected with the second connection end of the first branch.
It is worth mentioning that, in the process of the upward of the WiFi signal, the feedback WiFi signal sent by the television device is received by the transceiving antenna of the second converter, then transmitted to the second receiving signal branch through the third splitter, and transmitted to the coaxial cable after being converted and modulated, and received by the first transmitting signal branch of the first converter, and is restored into the feedback WiFi signal through being demodulated and converted, and then transmitted through the transceiving antenna of the first converter, and then received by the wireless router, so as to maintain the stability of the link, thereby facilitating the understanding of the connection state of the television device.
Further, as shown in fig. 2 and fig. 3, the first converter and the second converter each include a conversion chip U1 (a signal transmitting branch and a signal receiving branch are included inside the chip, that is, the chip integrates functions of ADC conversion, modulation, demodulation and DAC conversion) and a power chip U9, and the conversion chip U1 and the power chip U9 are electrically connected.
Furthermore, the 28 pins of the conversion chip U1 are electrically connected to the 3 pins of the transformer T1 through the capacitor C5 and the 29 pins of the conversion chip U1 are electrically connected to the 1 pin of the transformer T1 through the capacitor C4, the resistor R1 is connected between the 4 pins and the 6 pins of the transformer T1, and the 4 pins of the transformer T1 are electrically connected to the connector J6 through the capacitor C1;
the 11 pin of the conversion chip U1 is electrically connected to the 3 pin of the transformer T2 through a capacitor C33, the 12 pin of the conversion chip U1 is electrically connected to the 1 pin of the transformer T2 through a capacitor C34, a resistor R30 is connected between the 4 pin and the 6 pin of the transformer T1, and the 4 pin of the transformer T2 is electrically connected to the connector J5 through a capacitor C17 (the transformer T1 and the transformer T2 represent splitters and the connector J5 is used for connecting an antenna or a coaxial network).
Preferably, the output terminal of the power chip U9 outputs 3v3 power to supply power to the conversion chip U1.
The principle of the utility model is that:
preferably, the first converter and the second converter of the present invention are essentially the same conversion device, which can receive and transmit, and for data downlink, the conversion device installed in the room of the wireless router serves as receiving, the conversion device installed in the room of the television apparatus serves as transmitting, for data uplink, the conversion device installed in the room of the television apparatus serves as receiving, and the conversion device installed in the room of the wireless router serves as transmitting;
in the process of WiFi signal downlink, wiFi signals sent by a wireless router are received by a transceiving antenna of a first converter, then are transmitted to a first receiving signal branch through a first splitter, are transmitted to a coaxial network cable after being converted and modulated, are received by a second transmitting signal branch of a second converter, are restored into WiFi signals after being demodulated and converted, then are transmitted through a transceiving antenna of the second converter, and are received by WiFi connecting equipment such as television equipment and the like so as to be covered, and the second converter can be installed in a room provided with the television equipment through the coaxial network cable, so that the WiFi can be flexibly covered;
in the process of the upward WiFi signal, a feedback WiFi signal sent by the television equipment is received by a transceiving antenna of the second converter, then is transmitted to the second receiving signal branch through the third splitter, is transmitted to the coaxial network cable after being converted and modulated, is received by the first transmitting signal branch of the first converter, is restored into a feedback WiFi signal after being demodulated and converted, is transmitted through the transceiving antenna of the first converter, and is received by the wireless router, and the stability of a link is maintained, so that the connection state of the television equipment can be known conveniently.
A WiFi signal of 5.8GHz is sent by a wireless home router (AP), received by a conversion device arranged on a wall box, transmitted to another room through a coaxial line and restored into a WiFi signal, and received by WiFi televisions (or television boxes) in different rooms.
The converter (device) is mainly composed of three parts:
a) A receiving/transmitting antenna;
b) A high-speed AD/DA converter;
c) And a signal amplifier PA.
3. The working principle of the conversion device is as follows:
a) The antenna is a 5.8G antenna of standard WiFi and can be used for receiving and transmitting;
b) Because the high bandwidth required by the transmission of television signals cannot be achieved by adopting a frequency mixing method, the scheme adopts a high-speed AD/DA converter to convert analog signals received by an antenna into digital signals after analog-to-digital (AD) conversion, and the digital signals are transmitted in a coaxial line;
c) The conversion device is used in pairs, the transmitting end adopts DA conversion to restore WiFi signals, and covers another room;
d) If the signal power is insufficient, adding PA to amplify the signal for compensating the transmission loss;
e) Since WiFi is a bidirectional transmission signal, the transmission and the reception of paired signal converters are synchronously carried out, and during actual application, the self-excitation phenomenon caused by the fact that the gain of PA is too large (isolated by a splitter) and the isolation degree of the transmission and the reception is not enough needs to be avoided;
f) The signal converter only transforms the physical characteristics of the WiFi signals in the transmission process, and signal changes of the MAC layer and above are not involved.
It should be mentioned that the technical features such as wireless router, television equipment that the utility model discloses a patent application relates to should be regarded as prior art, and the concrete structure of these technical features, theory of operation and the control mode that may involve, spatial arrangement mode adopt the conventional selection in this field can, should not be regarded as the invention point of the utility model is in, the utility model discloses a do not do further specifically expand the detailed description.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted or omitted, and any modification, substitution, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (5)
1. The utility model provides a wiFi TV realization device based on coaxial cable carries out coverage on a large scale, is used for covering television equipment on a large scale, and is characterized by including first converter, second converter and coaxial cable, the transceiver antenna of first converter with wireless router communication connection and the first coaxial end of first converter with the one end electric connection of coaxial cable, the second coaxial end of second converter with the other end electric connection of coaxial cable and the transceiver antenna of second converter and television equipment communication connection, wherein:
the first converter comprises a first branch, a first receiving signal branch, a first transmitting signal branch and a fourth branch, the first receiving signal branch and the first transmitting signal branch are respectively connected between the first branch and the fourth branch, one end, far away from the fourth branch, of the first branch is connected with a receiving and transmitting antenna, and one end, far away from the first branch, of the fourth branch is connected with a first coaxial end;
the second converter comprises a second branch, a second receiving signal branch, a second transmitting signal branch and a third branch, the second receiving signal branch and the second transmitting signal branch are respectively connected between the second branch and the third branch, one end, far away from the second branch, of the third branch is connected with the transceiving antenna, and one end, far away from the third branch, of the second branch is connected with a second coaxial end.
2. The apparatus of claim 1, wherein the first receiving signal branch is connected to the second transmitting signal branch, and wherein:
the first receiving signal branch comprises a first high-speed ADC module and a first modulation module, a first connection end of the first branch is electrically connected with an input end of the first high-speed ADC module, an output end of the first high-speed ADC module is electrically connected with an input end of the first modulation module, and an output end of the first modulation module is electrically connected with a first connection end of the fourth branch;
the second transmitting signal branch comprises a second demodulation module and a second high-speed DAC module, a second connection end of the second splitter is electrically connected with an input end of the second demodulation module, an output end of the second demodulation module is electrically connected with an input end of the second high-speed DAC module, and an output end of the second high-speed DAC module is electrically connected with a second connection end of the third splitter.
3. The apparatus according to claim 2, wherein the second receiving signal branch is connected to the first transmitting signal branch, and wherein:
the second receiving signal branch comprises a second high-speed ADC module and a second modulation module, the first connection end of the third splitter is electrically connected with the input end of the second high-speed ADC module, the output end of the second high-speed ADC module is electrically connected with the input end of the second modulation module, and the output end of the second modulation module is electrically connected with the first connection end of the second splitter;
the first transmitting signal branch comprises a first demodulation module and a first high-speed DAC module, the second connection end of the fourth branch is electrically connected with the input end of the first demodulation module, the output end of the first demodulation module is electrically connected with the input end of the first high-speed DAC module, and the output end of the first high-speed DAC module is electrically connected with the second connection end of the first branch.
4. The device of claim 3, wherein the first converter and the second converter each comprise a conversion chip U1 and a power chip U9, and the conversion chip U1 is electrically connected to the power chip U9.
5. The device according to claim 4, wherein 28 pins of the converting chip U1 are electrically connected to 3 pins of a transformer T1 through a capacitor C5, 29 pins of the converting chip U1 are electrically connected to 1 pin of the transformer T1 through a capacitor C4, a resistor R1 is connected between 4 pins and 6 pins of the transformer T1, and 4 pins of the transformer T1 are electrically connected to a connector J6 through a capacitor C1;
the 11 pins of the conversion chip U1 are electrically connected with the 3 pins of the transformer T2 through a capacitor C33, the 12 pins of the conversion chip U1 are electrically connected with the 1 pin of the transformer T2 through a capacitor C34, a resistor R30 is connected between the 4 pins and the 6 pins of the transformer T1, and the 4 pins of the transformer T2 are electrically connected with the connector J5 through a capacitor C17.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220492347.2U CN217957197U (en) | 2022-03-08 | 2022-03-08 | WiFi television realization device capable of realizing large-range coverage based on coaxial network cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220492347.2U CN217957197U (en) | 2022-03-08 | 2022-03-08 | WiFi television realization device capable of realizing large-range coverage based on coaxial network cable |
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| CN217957197U true CN217957197U (en) | 2022-12-02 |
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| CN202220492347.2U Active CN217957197U (en) | 2022-03-08 | 2022-03-08 | WiFi television realization device capable of realizing large-range coverage based on coaxial network cable |
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