CN215499393U - Mining flame-proof and intrinsically safe wireless base station - Google Patents
Mining flame-proof and intrinsically safe wireless base station Download PDFInfo
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- CN215499393U CN215499393U CN202121058568.0U CN202121058568U CN215499393U CN 215499393 U CN215499393 U CN 215499393U CN 202121058568 U CN202121058568 U CN 202121058568U CN 215499393 U CN215499393 U CN 215499393U
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Abstract
A mining flameproof and intrinsically safe wireless base station aims to solve the problem of conversion between a 5G NR baseband signal and a radio frequency signal; the utility model comprises an explosion-proof shell, a multi-mode radio frequency module, an isolation module, an optical module, a dual-polarized antenna, three terminal rows, a fuse and an optical fiber fusion splice tray; an electric port interface of the multimode radio frequency module is connected with a fuse and three terminal rows through a lead in sequence and then is connected with an external power supply to be used as a power supply line; the external baseband optical signal conductor is connected with an LC interface of the optical module through a fusion joint interface of the optical fiber fusion fiber disc to convert an optical signal, a data interface of the optical module is connected with a data interface of the multimode radio frequency module, a radio frequency interface of the multimode radio frequency module is connected with a radio frequency input interface of the isolation module, and a radio frequency output interface of the isolation module is connected with the dual-polarized antenna to form a signal transmitting and external wireless radio frequency signal receiving loop.
Description
Technical Field
The utility model relates to a mining explosion-proof and intrinsic safety type wireless base station.
Background
For a long time, 4G signals are adopted for networking communication in a coal mine, the transmission rate and the transmission quality are greatly limited, the original transmission efficiency cannot meet the requirements of times development along with the continuous upgrading of intelligent equipment of the mine, and networking transmission upgrading and transformation of an underground network are urgently needed. With the maturity of the 5G technology, more and more 5G signals are adopted for networking communication under a coal mine to improve the transmission rate and the transmission quality, so that technical problems of conversion between NR baseband signals after 5G and radio frequency signals, transceiving processing functions of NR radio frequency signals and the like are urgently needed to be solved, the transmission effect of wireless voice, video and data signals under the coal mine is improved, and automatic management of the mine is realized.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide the mining explosion-proof and intrinsically safe wireless base station which can solve the problem of conversion between a 5G NR baseband signal and a radio frequency signal and improve the transmission effect of wireless voice, video and data signals in a coal mine.
The utility model discloses a mining explosion-proof and intrinsic safety type wireless base station, which comprises an explosion-proof shell, a multi-mode radio frequency module, an isolation module, an optical module, a dual-polarized antenna, three terminal rows, a fuse and an optical fiber fusion splice tray, wherein the multi-mode radio frequency module is arranged on the explosion-proof shell; an electric port interface of the multimode radio frequency module is connected with a fuse and three terminal rows through a lead in sequence and then is connected with an external power supply to be used as a power supply line; the external baseband optical signal conductor is connected with an LC interface of the optical module through a fusion joint interface of the optical fiber fusion fiber disc to convert an optical signal, a data interface of the optical module is connected with a data interface of the multimode radio frequency module, a radio frequency interface of the multimode radio frequency module is connected with a radio frequency input interface of the isolation module, and a radio frequency output interface of the isolation module is connected with the dual-polarized antenna to form a signal transmitting and external wireless radio frequency signal receiving loop.
The explosion-proof shell is made of Q235-A material with the thickness of 4mm, the volume is reduced as far as possible on the premise of meeting the explosion-proof requirement of a mine, the total amount is reduced, and the equipment completely meets the wall hanging use of the wall surface of an underground roadway. Meanwhile, the equipment can simultaneously receive and transmit 4G, 5G and NB signals by matching with the PRRU multimode radio frequency module. The multimode radio frequency module adopts a model PRRU5961H produced by Huashi technology limited, and the optical module adopts a model SFP28-25G-1310nm-10km-SM produced by Huashi technology limited. The model of the isolation module is ATC100B100 JT500X, produced by Beijing Tangbo communication technology, Inc.; the dual-polarized antenna is made of model AX-1727PA08D090-N2, produced by Austin technologies, Inc. in Foshan.
In practical use, in the downlink direction, a baseband signal transmitted from the 5G baseband unit is received, and is transmitted through the switch and the antenna unit after being processed by a transmission link (TX) such as up-conversion, digital-to-analog conversion, radio frequency modulation, filtering, signal amplification and the like. In the uplink direction, the 5G base station receives an uplink radio frequency signal through the antenna unit, and after being processed by a receiving link (RX) such as low noise amplification, filtering, demodulation, and the like, the uplink radio frequency signal is subjected to analog-to-digital conversion and down-conversion, converted into a baseband signal, and sent to the 5G baseband unit.
The wireless base station is mainly used for the intrinsically safe wireless base station in the severe environment under the coal mine, and has the main advantages that: the wireless and wired network technologies are combined into one, the problems of conversion between NR baseband signals after 5G and radio frequency signals, receiving and transmitting processing functions of NR radio frequency signals and the like can be solved, underground wireless voice, video and data signals can be efficiently transmitted, the system has a function of optical fiber communication with a signal converter, a function of wireless communication with a mobile phone, a function of communication indication and power indication and a function of transmitting CPRI data through optical fibers, the transmission effect of the underground wireless voice, video and data signals of a coal mine can be obviously improved, and automatic management of the mine is realized; the requirements of the mining explosion-proof equipment are met, and the coal mine explosion-proof equipment can be used underground.
Drawings
FIG. 1 is a schematic diagram of a base station according to the present invention;
in the figure: 1. explosion-proof casing, 2, multimode radio frequency module, 3, isolation module, 4, optical module, 5, dual polarized antenna, 6, three section terminal row, 7, fuse, 8, optical fiber splice tray.
Detailed Description
KT648(5G) -F mining flame proof and intrinsic safety type wireless base station includes: the anti-explosion antenna comprises an anti-explosion shell 1, a multi-mode radio frequency module (PRRU5961H, Huashi technology limited) 2, an isolation module (ATC100B100 JT500X, Beijing Tangbo communication technology limited) 3, an optical module (SFP28-25G-1310nm-10km-SM, Huashi technology limited) 4, a dual-polarized antenna (AX-1727PA08D090-N2, Foshan Macadish technology limited) 5, a three-section terminal row 6, a fuse (1A)7 and an optical fiber fusion splice tray 8. An electric port interface of the multimode radio frequency module 2 is connected with an external power supply after being sequentially connected with a fuse 7 and three terminal rows 6 through leads to be used as a power supply line; an external baseband optical signal wire is connected with an LC interface of the optical module 4 through a fusion joint interface of the optical fiber fusion fiber disc 8 and converts an optical signal into an electric signal, a data interface of the optical module 4 is connected with a data interface of the multimode radio frequency module 2, a radio frequency interface of the multimode radio frequency module 2 is connected with a radio frequency input interface of the isolation module 3, and a radio frequency output interface of the isolation module 3 is connected with the dual-polarized antenna 5 to form a signal transmitting and external wireless radio frequency signal receiving loop.
Power supply: the external DC48V power supply inputs power supply signals to the multimode radio frequency module 2 through the explosion-proof housing 1, the three-section terminal row 6 and the fuse 7 in sequence.
Signal emission: an external baseband optical signal enters the interior of the explosion-proof shell 1 through the explosion-proof shell 1, is converted into an electrical signal through the optical module 4 through the optical fiber melting disc, enters the PRRU multi-mode radio frequency unit, is filtered and amplified by the multi-mode radio frequency unit, and is transmitted through the dual-polarized antenna 5.
Signal receiving: external wireless radio frequency signals are received by the dual-polarized antenna 5, enter the explosion-proof shell 1, are subjected to filtering amplification, down-conversion and analog-to-digital conversion by the PRRU multi-mode radio frequency module 2, are converted into optical signals by the optical module 4, and are sent to the upper level for processing.
Claims (3)
1. A mining flame-proof and intrinsic safety type wireless base station is characterized by comprising a flame-proof shell, a multi-mode radio frequency module, an isolation module, an optical module, a dual-polarized antenna, three terminal rows, a fuse and an optical fiber fusion splice tray; an electric port interface of the multimode radio frequency module is connected with a fuse and three terminal rows through a lead in sequence and then is connected with an external power supply to be used as a power supply line; the external baseband optical signal conductor is connected with an LC interface of the optical module through a fusion joint interface of the optical fiber fusion fiber disc to convert an optical signal, a data interface of the optical module is connected with a data interface of the multimode radio frequency module, a radio frequency interface of the multimode radio frequency module is connected with a radio frequency input interface of the isolation module, and a radio frequency output interface of the isolation module is connected with the dual-polarized antenna to form a signal transmitting and external wireless radio frequency signal receiving loop.
2. The mining flameproof and intrinsically safe wireless base station of claim 1, wherein the multimode radio frequency module is PRRU5961H which is produced by Huashi technology limited, and the optical module is SFP28-25G-1310nm-10km-SM which is produced by Huashi technology limited.
3. The mining flameproof and intrinsically safe wireless base station of claim 1 or 2, wherein the type of the isolation module is ATC100B100 JT500X, produced by Beijing Tangbo communication technology, Inc.; the dual-polarized antenna is made of model AX-1727PA08D090-N2, produced by Austin technologies, Inc. in Foshan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121058568.0U CN215499393U (en) | 2021-05-17 | 2021-05-17 | Mining flame-proof and intrinsically safe wireless base station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121058568.0U CN215499393U (en) | 2021-05-17 | 2021-05-17 | Mining flame-proof and intrinsically safe wireless base station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215499393U true CN215499393U (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121058568.0U Active CN215499393U (en) | 2021-05-17 | 2021-05-17 | Mining flame-proof and intrinsically safe wireless base station |
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| Country | Link |
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| CN (1) | CN215499393U (en) |
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2021
- 2021-05-17 CN CN202121058568.0U patent/CN215499393U/en active Active
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