CN208143498U - The detection device and system of multi-system access platform transparent transmission port loss - Google Patents

The detection device and system of multi-system access platform transparent transmission port loss Download PDF

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Publication number
CN208143498U
CN208143498U CN201820624429.1U CN201820624429U CN208143498U CN 208143498 U CN208143498 U CN 208143498U CN 201820624429 U CN201820624429 U CN 201820624429U CN 208143498 U CN208143498 U CN 208143498U
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China
Prior art keywords
transparent transmission
access platform
system access
transmission port
detection device
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Expired - Fee Related
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CN201820624429.1U
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Chinese (zh)
Inventor
赵栋
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GCI Science and Technology Co Ltd
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GCI Science and Technology Co Ltd
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Abstract

The utility model discloses the detection device and system of a kind of loss of multi-system access platform transparent transmission port, the detection device includes:First SAW filter, the second SAW filter, the first power detector, the second power detector, processor and signal transceiver.The loss situation for realizing remote real time monitoring multi-system access platform transparent transmission port detects the transparent transmission port of multi-system access platform without interrupting communication and carrying cumbersome apparatus.

Description

The detection device and system of multi-system access platform transparent transmission port loss
Technical field
The utility model belongs to the loss detection field of the transparent transmission port of multi-system access platform, and in particular to a kind of polyphyly The detection device and system that access platform transparent transmission port of uniting is lost.
Background technique
Multi-system access platform (Point of Interface, abbreviation POI) refers to positioned at multisystem base station information source and interior Particular device between compartment system antenna feeder, it is equivalent to the higher combiner of performance indicator, has multisystem base station information source It is combined and exports to the antenna feeder equipment of indoor distributed system, while opposite direction exports the signal branch from antenna feeder equipment To the effect of each system information source.Wherein, two output ports of multi-system access platform (POI) are transparent transmission port, transparent transmission frequency range For (820-960MHz), actual signal workflow is input to multisystem access from one of output port for radiofrequency signal Platform, the signal are exported from another output mouth.Insertion loss refers to that output power of transmitter and receiver input power are logical Cross transmission loss caused by POI.The insertion loss that the prior art tests POI equipment transparent transmission port is mainly used before equipment is dispatched from the factory Vector network analyzer is tested, with vector network analyzer test can accurate test equipment transparent transmission port insertion loss, When needing in engineering use, the transparent transmission port insertion loss of test multi-system access platform equipment whether there is problem, it is necessary to people Work carries bulky test device, and multi-system access platform is typically mounted at remote tunnel, in high-rise building, is not easy to survey Examination;It also to disconnect the cable connecting with the input and output port of equipment to be tested, cause communication disruption.
Utility model content
The purpose of this utility model is to provide a kind of detection device of multi-system access platform transparent transmission port loss and is System realizes the loss situation of remote real time monitoring multi-system access platform transparent transmission port, sets without interrupting communication and carrying heaviness It is standby that the transparent transmission port of multi-system access platform is detected.
In order to solve the above technical problems, the utility model embodiment provides a kind of multi-system access platform transparent transmission port loss Detection device, including:First SAW filter, the second SAW filter, the first power detector, the second power detector, Processor and signal transceiver;
One end of first SAW filter is connect for receiving the first transparent transmission of multi-system access platform end with radio frequency line The input signal of mouth, the other end of first SAW filter are connect with the first power detector;
One end of second SAW filter is connect for receiving the second transparent transmission of multi-system access platform end with radio frequency line The output signal of mouth, the other end of second SAW filter are connect with the second power detector;
First power detector and second power detector are connected to the processor;The processor is also It is connect with the signal transceiver.
Further, the detection device further includes the first directional coupler and the second directional coupler;
One end of first directional coupler is connect with the first transparent transmission port of the multi-system access platform, the other end It is connect with radio-frequency cable, the coupling port of first directional coupler is connected by radio frequency line and first SAW filter It connects;
One end of second directional coupler is connect with the second transparent transmission port of the multi-system access platform, the other end It is connect with radio-frequency cable, the coupling port of second directional coupler is connected by radio frequency line and second SAW filter It connects.
Further, the detection device further includes:Display screen;The display screen is connected to the processor.
Preferably, the display screen includes cathode-ray tube display, plasma display or liquid crystal display.
Preferably, which is characterized in that the signal transceiver is modem.
Further, the signal transceiver is connect with remote monitoring Platform communication.
Correspondingly, the utility model also provides a kind of detection system of multi-system access platform transparent transmission port loss, including: Detection device, multi-system access platform, radio-frequency cable and the remote monitoring platform of multi-system access platform transparent transmission port loss;
It detection device that the multi-system access platform and the multi-system access platform transparent transmission port are lost and described penetrates Frequency cable connection;The detection device of the multi-system access platform transparent transmission port loss and the remote monitoring Platform communication connect It connects.
Compared with the prior art, the utility model a kind of multi-system access platform transparent transmission port loss detection device and The beneficial effect of system is:The radiofrequency signal for inputting the first transparent transmission port of multi-system access platform enters first by radio frequency line After SAW filter is filtered, the initial gain value of the radiofrequency signal of input is detected into the first power detector, due to First power detector is connected to the processor, and the processor obtains the initial gain value;The radiofrequency signal After being filtered by radio frequency line into the second SAW filter when being exported from the second transparent transmission port of multi-system access platform, into Enter the actual power value that the second power detector detects the radiofrequency signal, due to the second power detector and the processor Connection, the processor obtains the actual power value, so that processor is according to two transparent transmissions via multi-system access platform The actual power value and initial gain value of the radiofrequency signal of port transmission judge the loss situation of transparent transmission port, and work as transparent transmission port When loss situation is serious, the processor reports remote monitoring platform by the signal transceiver, to realize long-range real-time The loss situation for monitoring multi-system access platform transparent transmission port accesses multisystem without interruption communication and carrying cumbersome apparatus flat Platform is detected.
Detailed description of the invention
Fig. 1 is one embodiment of the detection device of multi-system access platform transparent transmission port loss provided by the utility model Structural schematic diagram;
Fig. 2 is another implementation of the detection device of multi-system access platform transparent transmission port loss provided by the utility model The structural schematic diagram of example;
Fig. 3 is the knot of the embodiment of the detection system of multi-system access platform transparent transmission port loss provided by the utility model Structure schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts Every other embodiment obtained, fall within the protection scope of the utility model.
It is one of the detection device of multi-system access platform transparent transmission port loss provided by the utility model referring to Fig. 1 The structural schematic diagram of embodiment, the detection device include:First SAW filter 10, the second SAW filter 20, the first power Detector 30, the second power detector 40, processor 50 and signal transceiver 60;
One end of first SAW filter 10 is connect for receiving the first transparent transmission of multi-system access platform with radio frequency line The input signal of port, the other end of first SAW filter 10 are connect with the first power detector 30;
One end of second SAW filter 20 is connect for receiving the second transparent transmission of multi-system access platform with radio frequency line The output signal of port, the other end of second SAW filter 20 are connect with the second power detector 40;
First power detector 30 and second power detector 40 are connect with the processor 50;The place Reason device 50 is also connect with the signal transceiver 60.
Radio frequency line described in the utility model embodiment is RF coaxial line, and wire structure is broadly divided into conductor, insulator, Shielded layer and outer quilt;RF coaxial line impedence generally has 50 Ω and 75 Ω, transmits for signal, such as mobile phone coaxial line, just refers to Used in interior of mobile phone, for receiving a bit of line of wifi signal, insulation is used Teflon material with outer.The sound table filter Wave device (abbreviation SAW) main function principle is the piezoelectric property using piezoelectric material, utilizes input and output transducer (Transducer) input signal of electric wave is converted into mechanical energy, after treatment, then converts mechanical energy into the signal of electricity, To reach the unnecessary signal of filtering and noise, the target of reception quality is promoted.SAW filter is widely used in various nothings LC resonance circuit is substituted on line communication system, television set, recorder and GPS receiver, for coupling between grade It closes and filters.Main function is noise to filter, simpler than traditional LC filter installation, volume is smaller.The power Detector receives the signal inputted by radio frequency line, and exports first device of voltage corresponding with the power of the signal received Part.The processor is preferably CPU i.e. central processing unit, mainly includes arithmetic unit (ALU, Arithmetic and Logic ) and the big component of controller (CU, Control Unit) two Unit;In addition, further including several registers and caches Device and the bus for realizing the data contacted between them, control and state.
Specifically, the radiofrequency signal for inputting the first transparent transmission port of multi-system access platform enters the first sound table by radio frequency line After filter is filtered, the initial gain value of the radiofrequency signal of input is detected into the first power detector, due to described First power detector is connected to the processor, and the processor obtains the initial gain value;The radiofrequency signal is from more After being filtered by radio frequency line into the second SAW filter when the second transparent transmission port output of system access platform, into the Two power detectors detect the actual power value of the radiofrequency signal, since the second power detector and the processor connect It connects, the processor obtains the actual power value, so that processor is according to two transparent transmission ends via multi-system access platform The actual power value and initial gain value of the radiofrequency signal of port transmission judge the loss situation of transparent transmission port, and when transparent transmission port damages When consumption situation is serious, the processor reports remote monitoring platform by the signal transceiver, to realize long-range prison in real time The loss situation for surveying multi-system access platform transparent transmission port, without interrupting communication and carrying cumbersome apparatus to multi-system access platform It is detected.
Further, the detection device further includes the first directional coupler 70 and the second directional coupler 80;
One end of first directional coupler 70 is connect with the first transparent transmission port of the multi-system access platform, another End is connect with radio-frequency cable, and the coupling port of first directional coupler 70 passes through radio frequency line and first SAW filter 10 connections;
One end of second directional coupler 80 is connect with the second transparent transmission port of the multi-system access platform, another End is connect with radio-frequency cable, and the coupling port of second directional coupler 80 passes through radio frequency line and second SAW filter 20 connections.
Further, the detection device further includes:Display screen 90;The display screen 90 is connect with the processor 50.
Preferably, the display screen 90 includes cathode-ray tube display, plasma display or liquid crystal display.
Preferably, which is characterized in that the signal transceiver 60 is modem.
Further, the signal transceiver 60 is connect with remote monitoring Platform communication.
It should be noted that directional coupler described in the utility model embodiment is a kind of general microwave/millimeter wave Component, for the isolation, separation and mixing of signal, as the monitoring of power, source output power fixed ampllitude, signal source isolation, transmission and The sweep check etc. of reflection;The key technical indexes is directional, standing-wave ratio, the degree of coupling, insertion loss.The modem, For the abbreviation of Modulator (modulator) and Demodulator (demodulator), for the digital signal modulated to be transmitted to carrying It is separated on wave or digital signal from carrier wave.It is defeated to be exactly converted into phone line by so-called modulation for digital signal Analog signal;Analog signal, i.e., be converted into digital signal, be collectively referred to as modem by demodulation.The modem is being sent End converts digital signals into analog signal by modulation, converts analog signals into digital letter again by demodulation in receiving end Number.In the utility model embodiment, when the processor judges that seriously i.e. multisystem connects multi-system access platform loss situation When entering platform fault, since the signal transceiver is connect with remote monitoring Platform communication, the processor passes through the signal The transparent transmission port loss situation of multi-system access platform is reported remote monitoring platform by transceiver.
As shown in Fig. 2, being the another of the detection device of multi-system access platform transparent transmission port loss provided by the utility model The structural schematic diagram of one embodiment.
Specifically, when the multi-system access platform transparent transmission port loss detection device pair connect with radio-frequency cable it is more When the transparent transmission port of system access platform is detected, since one end of the first directional coupler 70 and multisystem access are flat First transparent transmission port of platform connects, and the other end is connect with radio-frequency cable;The coupling port of first directional coupler 70 passes through Radio frequency line is connect with the first SAW filter 10;When radiofrequency signal is inputted from the first transparent transmission output port of multi-system access platform When being transmitted, the radiofrequency signal inputs the first SAW filter by the coupling port of first directional coupler 70 10.Preset first SAW filter passband frequency range be the radiofrequency signal transparent transmission frequency lower frequency range (such as The 930-960MHz in 870-880MHz or GSM900 in CDMA800), since the band downlink signal of Base Transmitter is to connect Continuous and signal power is fixed, and the detection device conducive to multi-system access platform transparent transmission port loss detects the radio frequency Signal simultaneously improves accuracy in detection.The radiofrequency signal is after the filtering of the first SAW filter 10, by the radiofrequency signal Lower frequency band signals are exported to first power detector 30;First power detector 30 receives the radiofrequency signal After lower frequency band signals, the corresponding voltage of the signal power is exported to the processor 50;The processor 50 passes through the first function The voltage value that rate detector 30 is sent obtains the initial power (P1) of the lower frequency band signals of the radiofrequency signal.
Do not interrupted since multi-system access platform communicates when detecting, input the first transparent transmission output port radiofrequency signal from When second transparent transmission output port of multi-system access platform is exported to radio-frequency cable;Due to the second directional coupler 80 one end with Second transparent transmission port of the multi-system access platform connects, and the other end is connect with radio-frequency cable;Second directional coupler 80 coupling port is connect by radio frequency line with the second SAW filter 20;When radiofrequency signal is exported from the second transparent transmission output port When being transmitted to radio-frequency cable, the radiofrequency signal inputs the rising tone by the coupling port of second directional coupler 80 Table filter 20.The passband frequency range for presetting second SAW filter is the lower frequency range of the radiofrequency signal transparent transmission frequency (930-960MHz in 870-880MHz or GSM900 in such as CDMA800), the radiofrequency signal are filtered by rising tone table After wave device 20 filters, the lower frequency band signals of the radiofrequency signal are exported to second power detector 40;Second function After rate detector 40 receives the lower frequency band signals of the radiofrequency signal, the corresponding voltage of the signal power is exported to the place Manage device 50;The processor 50 is believed by the lower frequency range that the voltage value that the second power detector 40 is sent obtains the radiofrequency signal Number actual power (P2).
Processor 50 calculates the lower frequency range of the radiofrequency signal according to the actual power (P2) and initial power (P1) Difference power of the signal after the transmission of two transparent transmission ports of multi-system access platform, and it is more to judge whether the difference power meets The insertion loss of the transparent transmission port of system access platform require judge multi-system access platform transparent transmission port whether have extremely or Phenomenon of the failure;The transparent transmission port insertion loss of the multisystem access device (POI) requires to be exhaustion range, when power difference is super Judge that the power difference does not meet insertion loss requirement when crossing 1dB, i.e. transparent transmission port failure in the multi-system access platform.
When the processor 50 judges that power difference does not meet the insertion loss of the multi-system access platform transparent transmission port It is required that when, that is, multi-system access platform transparent transmission port failure, the processor 50 will not by the signal transceiver 60 The transparent transmission port information reporting of the power difference and corresponding multi-system access platform that meet insertion loss requirement is flat to remote monitoring Platform, and control the display screen 90 and show the power difference for not meeting insertion loss requirement and corresponding transparent transmission port information simultaneously It gives a warning, terminates detection operation;When the processor 50 judges that power difference meets multi-system access platform transparent transmission end When the insertion loss of mouth requires, the initial gain value of the radiofrequency signal of input multi-system access platform transparent transmission port is re-started (P1) detection of detection and actual power value (P2), and the loss judgement of multi-system access platform transparent transmission port is carried out again, Realize the loss of circulation real-time detection multi-system access platform transparent transmission port.To realize multi-system access platform transparent transmission end The loss situation of the detection device remote real time monitoring multi-system access platform transparent transmission port of mouth loss, without interrupting communication and taking It is detected with transparent transmission port of the cumbersome apparatus to multi-system access platform.
As shown in figure 3, being the reality of the detection system of multi-system access platform transparent transmission port loss provided by the utility model Apply the structural schematic diagram of example.
Correspondingly, the utility model also provides a kind of detection system of multi-system access platform transparent transmission port loss, including: Detection device 301, multi-system access platform 302, radio-frequency cable 303 and the distal end of multi-system access platform transparent transmission port loss are supervised Control platform 304;
The detection device 301 of the multi-system access platform 302 and multi-system access platform transparent transmission port loss and The radio-frequency cable 303 connects;The detection device 301 of the multi-system access platform transparent transmission port loss and the remote monitoring Platform communication 304 connects.
In conclusion a kind of detection device of multi-system access platform transparent transmission port loss provided by the utility model and being System, the radiofrequency signal for inputting the first transparent transmission port of multi-system access platform enter the first SAW filter by radio frequency line and are filtered After wave, the initial gain value of the radiofrequency signal of input is detected into the first power detector, due to first power detection Device is connected to the processor, and the processor obtains the initial gain value;The radiofrequency signal is from multi-system access platform The output of the second transparent transmission port when be filtered by radio frequency line into the second SAW filter after, into the second power detector The actual power value for detecting the radiofrequency signal, since the second power detector is connected to the processor, the processor The actual power value is obtained, so that processor is believed according to the radio frequency of two transparent transmission ports transmission via multi-system access platform Number actual power value and initial gain value judge the loss situation of transparent transmission port, and when transparent transmission port loss situation is serious, The processor reports remote monitoring platform by the signal transceiver, to realize that the access of remote real time monitoring multisystem is flat The loss situation of platform transparent transmission port detects multi-system access platform without interrupting communication and carrying cumbersome apparatus.
The above is preferred embodiments of the present invention, it is noted that for the ordinary skill of the art For personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these are improved and profit Decorations are also considered as the protection scope of the utility model.

Claims (7)

1. a kind of detection device of multi-system access platform transparent transmission port loss, which is characterized in that including:The filtering of first sound table Device, the second SAW filter, the first power detector, the second power detector, processor and signal transceiver;
One end of first SAW filter is connect for receiving the first transparent transmission port of multi-system access platform with radio frequency line The other end of input signal, first SAW filter is connect with the first power detector;
One end of second SAW filter is connect for receiving the second transparent transmission port of multi-system access platform with radio frequency line The other end of output signal, second SAW filter is connect with the second power detector;
First power detector and second power detector are connected to the processor;The processor also with institute State signal transceiver connection.
2. the detection device of multi-system access platform transparent transmission port loss as described in claim 1, which is characterized in that the inspection Surveying device further includes the first directional coupler and the second directional coupler;
One end of first directional coupler is connect with the first transparent transmission port of the multi-system access platform, the other end with penetrate The coupling port of frequency cable connection, first directional coupler is connect by radio frequency line with first SAW filter;
One end of second directional coupler is connect with the second transparent transmission port of the multi-system access platform, the other end with penetrate The coupling port of frequency cable connection, second directional coupler is connect by radio frequency line with second SAW filter.
3. the detection device of multi-system access platform transparent transmission port loss as described in claim 1, which is characterized in that the inspection Surveying device further includes:Display screen;The display screen is connected to the processor.
4. the detection device of multi-system access platform transparent transmission port loss as claimed in claim 3, which is characterized in that described aobvious Display screen includes cathode-ray tube display, plasma display or liquid crystal display.
5. the detection device of multi-system access platform transparent transmission port loss as described in claim 1, which is characterized in that the letter Number transceiver is modem.
6. the detection device of multi-system access platform transparent transmission port loss as described in claim 1, which is characterized in that the letter Number transceiver is connect with remote monitoring Platform communication.
7. a kind of detection system of multi-system access platform transparent transmission port loss, which is characterized in that including:Multi-system access platform Detection device, multi-system access platform, radio-frequency cable and the remote monitoring platform of transparent transmission port loss;
The detection device of the multi-system access platform transparent transmission port loss is multisystem as claimed in any one of claims 1 to 6 The detection device of access platform transparent transmission port loss;
The detection device and the radio frequency electrical of the multi-system access platform and multi-system access platform transparent transmission port loss Cable connection;The detection device of the multi-system access platform transparent transmission port loss is connect with the remote monitoring Platform communication.
CN201820624429.1U 2018-04-27 2018-04-27 The detection device and system of multi-system access platform transparent transmission port loss Expired - Fee Related CN208143498U (en)

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CN201820624429.1U CN208143498U (en) 2018-04-27 2018-04-27 The detection device and system of multi-system access platform transparent transmission port loss

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Application Number Priority Date Filing Date Title
CN201820624429.1U CN208143498U (en) 2018-04-27 2018-04-27 The detection device and system of multi-system access platform transparent transmission port loss

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