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Standing wave detection device and method for multi-frequency combiner

A frequency combiner and standing wave detection technology, which is applied in the field of communication, can solve problems such as no alarm, false alarm, and signal frequency distinction, and achieve the effect of improving directionality, improving accuracy, and reducing difficulty

Active Publication Date: 2017-10-31
COMBA TELECOM TECH (GUANGZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In this method, the signal detected by the detector is the superimposed value of the power of the previous multiple input signals. Since the standing wave ratio is a function of frequency, that is, the standing wave ratio changes with the change of frequency, the above methods cannot distinguish the signal frequency. Therefore, the standing wave detection accuracy is extremely low, and the requirements for effective monitoring of equipment are often not met, and false alarms or no alarms often occur

Method used

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  • Standing wave detection device and method for multi-frequency combiner
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  • Standing wave detection device and method for multi-frequency combiner

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Embodiment 1

[0051] see figure 2 As shown, it is a schematic structural diagram of Embodiment 1 of the standing wave detection device of the multi-frequency combiner of the present invention. Such as figure 2 As shown, the standing wave detection device of the multi-frequency combiner in the first embodiment includes a first single-chip microcomputer SCM1, a first detector D101, a second detector D102, a first switch S101, a second switch S102 and The third changeover switch S103, the first unidirectional couplers U105-U107 whose number is the same as the number of signal input links of the multi-frequency combiner U101, and the number of the same number of signal output links as the multi-frequency combiner U101 The second unidirectional coupler U108 and the first narrowband filters U102-U104 having the same number as the number of signal input links, here, since the number of signal input links in this embodiment is three, the first The number of one-way couplers U105-U107 is three, ...

Embodiment 2

[0061] see image 3 As shown, it is a schematic structural diagram of Embodiment 2 of the standing wave detection device of the multi-frequency combiner of the present invention. Such as image 3 As shown, the standing wave detection device of the multi-frequency combiner in the second embodiment includes a second single-chip microcomputer SCM2, a third detector D201, a fourth detector D202, a fourth switch S201, a fifth switch S202 and The third unidirectional couplers U205-U207, the fourth unidirectional couplers U208-U210, and the third narrow-band filters U202-U204, the number of which are the same as the number of signal input links of the multi-frequency combiner U201, here, Since the number of signal input links in this embodiment is three, the numbers of the third one-way couplers U205-U207, the fourth one-way couplers U208-U210, and the third narrow-band filters U202-U204 are equal. for three;

[0062] Each third unidirectional coupler U205-U207 is connected in ser...

Embodiment 3

[0069] see Figure 4 As shown, it is a schematic structural diagram of Embodiment 3 of the standing wave detection device of the multi-frequency combiner of the present invention. Such as Figure 4As shown, the standing wave detection device of the multi-frequency combiner in the third embodiment includes a third single-chip microcomputer SCM3, a sixth switch S301, and a signal input link whose number is one more than the number of signal input links of the multi-frequency combiner U301. The fifth one-way coupler U305-U307, the fifth one-way coupler U306 whose number is the same as the number of signal output links of the multi-frequency combiner U301, and the fifth one-way coupler U306 whose number is the same as the number of signal input links. Geophones D301-D303, sixth detectors D305-D306, third narrow-band filters U302-U304;

[0070] The fifth one-way couplers U305-U307 are respectively connected in series in different said signal input links, and the sixth one-way cou...

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Abstract

The present invention relates to a standing wave detection device and method of a multi-frequency combiner, the device comprising a first single chip microcomputer, first to second wave detectors, first to switching switches, number and signal input chain of the multi-frequency combiner The first one-way coupler with the same number of roads, the first narrow-band filter and the second one-way coupler with the same number of signal input links as the multi-frequency combiner; the first one-way coupler is connected in series In the signal input link of the frequency combiner, the second unidirectional coupler is connected in series in the signal output link; the first to second detectors are respectively connected to the first single-chip microcomputer, and the first detector is also connected to the first switch, the second The second wave detector is also connected to the second switch, the first switch is also connected to the first unidirectional coupler, the second switch is also connected to the first narrowband filters, and each first narrowband filter is also connected to the third switch, The third switch is also connected to the second one-way coupler, and the solution of the present invention can improve the accuracy of standing wave detection.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a standing wave detection device and method of a multi-frequency combiner. Background technique [0002] Multi-system access platform (POI, Point Of Interface), as an effective mobile communication signal access device, is widely used in signal coverage of subways, tunnels, and large venues. With the deepening of the concept of co-construction and sharing, POI has also become one of the means for base stations to combine signals. POI is a key device in the mobile communication link. Once a failure occurs, the entire communication link will be interrupted, causing a great impact. Therefore, how to monitor the operating status of POI equipment has become the focus of attention of users. [0003] POI is essentially a passive combiner device. The most common and effective way to monitor the status of this type of device is to monitor its ports, especially the standing wave ra...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B17/00
Inventor 陶沁林显添
Owner COMBA TELECOM TECH (GUANGZHOU) CO LTD
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