CN-224204338-U - 5G frequency-selecting transparent transmission POI combiner device

CN224204338UCN 224204338 UCN224204338 UCN 224204338UCN-224204338-U

Abstract

The utility model relates to the technical field of POI (point of interest) combiners, in particular to a 5G frequency-selective transparent transmission POI combiner device which comprises POI combiner units, wherein each POI combiner unit comprises more than two bridges, two multi-frequency combiners and more than two mechanical switches K, the number of the bridges is equal to that of the mechanical switches K and corresponds to that of the mechanical switches K one by one, the input ends of each bridge are connected with signal sources with different frequencies, the two output ends of each bridge are respectively and electrically connected with the two input ends of the corresponding mechanical switches K, and the two output ends of each mechanical switch K are respectively and electrically connected with the input ends of the two multi-frequency combiners. The two-stage combining mode is adopted, the first-stage combiner is a bridge, the balance of input phases and levels is convenient to control, the spare input end of the bridge is connected with a load, the second-stage combiner is a multi-frequency combiner, the two modes of transmission through transmission and combined transmission can be supported, the variety of equipment types is avoided, and the purchasing cost is reduced.

Inventors

PAN JIANSONG
LIU BIN
DENG HANYUAN
ZHUO ZHANGYU
YE YILANG
HE JINMING
XIE ZHIMAO
WANG GUOCHENG
ZHANG KAI

Assignees

国脉科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20250423

Claims (6)

1. A5G frequency-selecting transparent transmission POI combiner device is characterized by comprising POI combiner units, wherein each POI combiner unit comprises more than two bridges, two multi-frequency combiners and more than two mechanical switches K, the number of the bridges is equal to that of the mechanical switches K and corresponds to that of the mechanical switches K one by one, the input ends of each bridge are connected with signal sources with different frequencies, the two output ends of each bridge are respectively and electrically connected with the two input ends of the corresponding mechanical switches K, and the two output ends of each mechanical switch K are respectively and electrically connected with the input ends of the two multi-frequency combiners.
2. The POI combiner device of claim 1 wherein two adjacent POI combiner units are electrically connected by leaky cable.
3. The POI combiner device of claim 1 wherein the number of bridges and the number of mechanical switches K are seven.
4. The 5G frequency-selective transmission POI combiner device according to claim 1, wherein the mechanical switch K comprises a first end point, a second end point, a third end point and a fourth end point, the first end point and the second end point are used as two input ends of the mechanical switch K, the third end point and the fourth end point are used as two output ends of the mechanical switch K, and jumper wires are used for connection between the end points of the mechanical switch K so as to realize two switch settings of combined transmission and transmission.
5. The POI combiner device of claim 1 wherein the signal source has a frequency in the range of 700MHz to 3700 MHz.
6. The POI combiner device of claim 1 wherein the bridge has a free input coupled to the load.

Description

5G frequency-selecting transparent transmission POI combiner device Technical Field The utility model relates to the technical field of POI (point of interest) combiners, in particular to a 5G frequency-selecting transparent transmission POI combiner device. Background The subway tunnel 5G network coverage generally adopts a leakage coaxial cable+RRU mode, the transmission distance of 5G signals in the leakage coaxial cable is related to the information source frequency and the power thereof, the RRU information source access frequency ranges from 700MHz to 3700MHz, the power ranges from 20W to 100W, the transmission distances of the 5G RRU information sources in different systems are inconsistent, the current tunnel coverage site spacing design thinking is that sites are arranged according to 4/5G information sources with high frequency at the maximum value of the allowable loss of the leakage cable transmission, and other frequency information sources are also arranged according to the spacing, so that the waste of the 4/5G information sources with low frequency power is caused. Disclosure of utility model Accordingly, the present utility model is directed to a 5G frequency-selective transparent transmission POI combiner device, which flexibly sets the frequency to be transparent according to the actual needs, so as to solve the above-mentioned problems. In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows: A5G frequency-selecting transparent transmission POI combiner device comprises POI combiner units, each POI combiner unit comprises more than two bridges, two multi-frequency combiners and more than two mechanical switches K, the number of the bridges is equal to that of the mechanical switches K and corresponds to that of the mechanical switches K one by one, the input ends of each bridge are connected with signal sources with different frequencies, the two output ends of each bridge are respectively and electrically connected with the two input ends of the corresponding mechanical switches K, and the two output ends of each mechanical switch K are respectively and electrically connected with the input ends of the two multi-frequency combiners. Preferably, two adjacent POI combiner units are electrically connected through a leaky cable. Preferably, the number of the bridges and the number of the mechanical switches K are seven. Preferably, the mechanical switch K includes a first end point, a second end point, a third end point and a fourth end point, where the first end point and the second end point are two input ends of the mechanical switch K, and the third end point and the fourth end point are two output ends of the mechanical switch K, and the end points of the mechanical switch K are connected by using a jumper wire to implement two switch settings of combined transmission and transparent transmission. Preferably, the frequency of the signal source ranges from 700MHz to 3700 MHz. Preferably, the free input of the bridge is connected to a load. The beneficial effects of the utility model are as follows: The 5G frequency-selecting transparent transmission POI combiner device comprises POI combiner units, wherein each POI combiner unit comprises more than two bridges, two multi-frequency combiners and more than two mechanical switches K, the number of the bridges is equal to that of the mechanical switches K and corresponds to that of the mechanical switches K one by one, the input ends of each bridge are connected with signal sources with different frequencies, the two output ends of each bridge are respectively and electrically connected with the two input ends of the corresponding mechanical switches K, and the two output ends of each mechanical switch K are respectively and electrically connected with the input ends of the two multi-frequency combiners. The two-stage combining mode is adopted, the first-stage combiner is a bridge, the balance of input phases and levels is convenient to control, the spare input end of the bridge is connected with a load, the second-stage combiner is a multi-frequency combiner, the two modes of transmission through transmission and combined transmission can be supported, the variety of equipment types is avoided, and the purchasing cost is reduced. Drawings Fig. 1 is a schematic structural diagram of a 5G frequency-selective transmission POI combiner device according to the present utility model; FIG. 2 is a schematic diagram of the transmission-through mode operation of the present utility model; FIG. 3 is a schematic diagram of the operation of the combined transmission mode of the present utility model; FIG. 4 is a transmission-through transmission switch mode diagram of the present utility model; FIG. 5 is a diagram of a combined transmission mode switch mode of the present utility model; fig. 6 is a diagram of a different frequency transparent transmission connection of the present utility model. Detailed D