CN202679377U - Apparatus for realizing micro repeater standing wave alarm with low cost - Google Patents
Apparatus for realizing micro repeater standing wave alarm with low cost Download PDFInfo
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- CN202679377U CN202679377U CN201220150596XU CN201220150596U CN202679377U CN 202679377 U CN202679377 U CN 202679377U CN 201220150596X U CN201220150596X U CN 201220150596XU CN 201220150596 U CN201220150596 U CN 201220150596U CN 202679377 U CN202679377 U CN 202679377U
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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
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Abstract
The utility model discloses an apparatus for realizing micro repeater standing wave alarm with low cost, which comprises a reverse direction coupler, an attenuator, a detector, an operational amplifier and a CPU. The apparatus for realizing micro repeater standing wave alarm with low cost has the effective effect that the power detection function of a current micro repeater output port is used, compared with a current standing wave alarm realization scheme, a group of forward power detection unit is lacked, and the cost is substantially reduced. Because the usage of a first stage coupler is lacked at the output port, the loss of a main channel is smaller, and the work efficiency of the mobile communication device is enhanced. The standing wave alarm information is provided by using the measure return loss, the system error problems can be solved, and the apparatus can be rapidly used in the communication device.
Description
Technical field
The present invention relates to the standing wave warning system of mobile communication equipment, particularly a kind of low-cost device of realizing the standing wave alarm of Miniature repeater in the mobile communication system (GSM).
Background technology
In mobile communication system, along with the day by day enhancing of mobile communication carrier to base station and the maintainable demand of auxiliary equipment thereof, voltage standing wave ratio (VSWR) is as the important indicator of weighing mobile communication facility operation quality, and whether correctly detect and provide warning information has become operator's outline.
Voltage standing wave ratio (VSWR) refers to the ratio of voltage max and minimum value on the transmission line, and relative two parameters have: return loss (RL) and reflection coefficient (Γ).Return loss (RL), also namely: the ratio of incident power and reflected wave power; Reflection coefficient (Γ), also namely: the ratio of reflected wave voltage and incident wave voltage.Three's functional relation is: RL=-20lg(Γ)=20lg[(1+VSWR)/(1-VSWR)].
The standing wave alarm produces warning information during greater than certain specific threshold value and reports network management center when mobile communication equipment antenna feeder port voltage standing-wave ratio exactly.
The standing wave alarm of prior art is recently to judge the standing wave situation by what calculate forward voltage and reverse voltage in the output port.
In the prior art, forward and reverse power detecting unit is arranged between Miniature repeater duplexer 101 and antenna 104 ports, as shown in Figure 1, is comprised of forward coupler 102, reverse coupler 103.
Existing standing wave alarm realizes principle as shown in Figure 2, carry out detection through entering corresponding wave detector 202 behind the attenuator 201 decay certain values respectively from forward coupled signal and the reverse coupled signal of forward and reverse coupler output, it is output as voltage signal, and forward voltage and reverse voltage are amplified into CPU 204 through operational amplifier 203 to carry out computing and draw voltage standing wave ratio.The standing wave alarming threshold value of this voltage standing wave(VSW) ratio and default compares, and the virtual voltage standing-wave ratio then produces alarm and reports network management center 205 by telecommunication greater than standing wave alarming threshold value, then is considered as normally less than or equal to standing wave alarming threshold value.
This specification requirement detects simultaneously to forward power and backward power, and its deficiency is: use two directional couplers excessive to the primary path decay; Forward power detects and backward power detects two detection path, and cost is expensive.
Summary of the invention
Technical problem solved by the invention has been to propose a kind of low-cost device of realizing the alarm of Miniature repeater standing wave.
Proposed a kind of low-cost device of realizing the alarm of Miniature repeater standing wave in the embodiment of the invention, comprised the steps:
Existing mobile communication Miniature repeater has the power output measuring ability, therefore can directly obtain the forward power value in central processing unit (CPU);
Obtain the reverse coupled signal by reverse coupler from output port;
By logarithmic detector pipe and operational amplifier reverse signal is become and to send into central processing unit after voltage signal amplifies, the tables of data inquiry by prior measurement in CPU draws the backward power value;
Just can draw return loss by forward power being deducted backward power, and compare with the threshold value of setting and to draw the standing wave warning information, thereby judge that standing-wave ratio is whether in normal range (NR);
The standing wave warning information that produces in CPU is by telecommunication mode real-time report network management center.
Miniature repeater standing wave alarm implement device of the present invention is read with backward power detecting unit two parts by forward power and forms, it is characterized in that, described backward power detecting unit comprises reverse coupler, attenuator, the logarithmic detector pipe, operational amplifier and preserve the CPU of forward power tables of data and backward power tables of data, reverse coupler is placed between duplexer and the antenna port, the reverse coupler coupling port links to each other with attenuator one end, the attenuator other end links to each other with logarithmic detector pipe input, logarithmic detector pipe output port links to each other with the operational amplifier input port, and the operational amplifier output terminal mouth links to each other with the A/D sampling end of CPU.
The technical solution used in the present invention also comprises: obtain descending forward power value by the power detection of Miniature repeater equipment itself, specifically obtain in CPU.
The technical solution used in the present invention also comprises: described backward power detecting unit is integrated in Miniature repeater inside, and this circuit is positioned at the front end of the descending output duplexer of Miniature repeater.
[0014] the technical solution used in the present invention also comprises: described reverse coupler is the 10dB directional coupler, the backward power that mainly is coupled signal and the forward power signal had 30dB isolation.
[0015] the technical solution used in the present invention also comprises: described attenuator arrives the backward power signal attenuation of coupling in the logarithmic detector pipeline scope.
The technical solution used in the present invention also comprises: described logarithmic detector pipe changes the backward power signal into voltage signal.
The technical solution used in the present invention also comprises: described operational amplifier amplifies to provide CPU accurately to sample the voltage signal of logarithmic detector pipe output.
The technical solution used in the present invention also comprises: the A/D sampling unit that described CPU utilizes self is sampled to the voltage signal of backward power after logarithmic detector pipe and operational amplifier amplify in real time, and and self power data table compare and draw corresponding backward power value.
Implement the device of realization Miniature repeater standing wave of the present invention alarm, owing to utilizing the power detection of existing Miniature repeater output port, therefore more existing standing wave alarm implementation lacks one group of forward power detecting unit, and cost reduces greatly.And because output port uses the one-level coupler less, so that the primary path loss diminishes, improved the operating efficiency of mobile communication equipment.Simultaneously, owing to adopting measurement return loss that the standing wave warning information is provided, solved the systematic error problem, can be applied in the communication equipment fast.The present invention is because above advantage has very strong practicality and economic benefit.
Description of drawings
Fig. 1 is the forward and reverse power signal coupling unit in the existing standing wave alarm implementation method;
Fig. 2 is the standing wave alarm theory diagram of the middle base station of mobile communication system in the prior art (GSM) and auxiliary equipment thereof;
Fig. 3 is the forward power reading unit in the standing wave alarm implementation method of the present invention;
Fig. 4 is the backward power coupling unit in the standing wave alarm implementation method of the present invention;
Fig. 5 is the backward power detecting unit in the standing wave alarm implementation method of the present invention;
Fig. 6 is that the standing wave alarm in the standing wave alarm implementation method of the present invention realizes theory diagram.
Embodiment
Feature of the present invention and advantage will be elaborated by reference to the accompanying drawings by embodiment.
Forward power checkout gear of the present invention has Miniature repeater equipment now and all has this function as shown in Figure 3, and energy Measurement accuracy output port forward power, and its principle repeats no more.Central processing unit (CPU) will directly call the calculating that this value is carried out standing-wave ratio in this invention.
The backward power coupling unit that the present invention uses as shown in Figure 4, described backward power coupling unit is made of directional coupler 402, this directional coupler degree of coupling is 10dB, and the forward power signal is had the isolation of 30dB.
Be illustrated in figure 5 as the backward power checkout gear that the present invention adopts, described backward power checkout gear comprises by attenuator 501, logarithmic detector 502, operational amplifier 503, CPU 504 and forming.It realizes that principle comprises:
Described attenuator 501 arrives the backward power signal attenuation of directional coupler coupling in the logarithmic detector pipeline scope.
Described logarithmic detector 502 changes the backward power signal into voltage signal.
Described operational amplifier 503 amplifies to provide CPU accurately to sample the voltage signal of logarithmic detector pipe output.
The A/D sampling unit that described CPU 504 utilizes self is sampled to the voltage signal of backward power after logarithmic detector 502 and operational amplifier 503 amplify in real time, and and self power data table compare and draw corresponding backward power value.
The standing wave alarm that is illustrated in figure 6 as in the standing wave alarm implementation method of the present invention realizes theory diagram.Forward power detects directly calls the existing data of CPU.
Characteristics of the present invention are that output port only carries out backward power and detects, and forward power detects directly calls the existing data of CPU, thereby reduces output port owing to increasing the loss that coupler causes.Deduct backward power by forward power and draw return loss, with return loss be converted into corresponding voltage standing wave ratio then with CPU in the threshold value that arranges compare and produce the standing wave warning information.
Claims (4)
1. low-cost device of realizing the alarm of Miniature repeater standing wave, it is characterized in that: it comprises reverse coupler, attenuator, logarithmic detector pipe, operational amplifier and preserves the forward power tables of data and the CPU of backward power tables of data, reverse coupler is placed between duplexer and the antenna port, the reverse coupler coupling port links to each other with attenuator one end, the attenuator other end links to each other with logarithmic detector pipe input, logarithmic detector pipe output port links to each other with the operational amplifier input port, and the operational amplifier output terminal mouth links to each other with the A/D sampling end of CPU.
2. a kind of low-cost device of realizing the alarm of Miniature repeater standing wave shown in claim 1 is characterized in that: obtain descending forward power value by the power detection of Miniature repeater equipment itself, specifically obtain in CPU.
3. such as the described a kind of low-cost device of realizing the alarm of Miniature repeater standing wave of claim 1 to 2 any one, it is characterized in that: the backward power detecting unit is integrated in Miniature repeater inside, and this circuit is positioned at the front end of the descending output duplexer of Miniature repeater.
4. such as the described a kind of low-cost device of realizing the alarm of Miniature repeater standing wave of claims 1 to 3 any one, it is characterized in that: described reverse coupler is the 10dB directional coupler, the backward power that mainly is coupled signal and the forward power signal had 30dB isolation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220150596XU CN202679377U (en) | 2012-04-11 | 2012-04-11 | Apparatus for realizing micro repeater standing wave alarm with low cost |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201220150596XU CN202679377U (en) | 2012-04-11 | 2012-04-11 | Apparatus for realizing micro repeater standing wave alarm with low cost |
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| CN202679377U true CN202679377U (en) | 2013-01-16 |
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| CN201220150596XU Expired - Lifetime CN202679377U (en) | 2012-04-11 | 2012-04-11 | Apparatus for realizing micro repeater standing wave alarm with low cost |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553502A (en) * | 2015-12-31 | 2016-05-04 | 陕西烽火电子股份有限公司 | Shortwave radio and transmission protection method thereof |
| CN106291131A (en) * | 2016-08-16 | 2017-01-04 | 江苏本能科技有限公司 | RFID antenna detection method and device |
| CN106680580A (en) * | 2016-12-30 | 2017-05-17 | 福建星海通信科技有限公司 | Measurement system of power and voltage standing wave ratio |
| CN109327239A (en) * | 2018-10-09 | 2019-02-12 | 南京泰通科技股份有限公司 | A kind of built-in base station duplex module with standing wave monitoring function low noise |
| CN109406885A (en) * | 2018-10-30 | 2019-03-01 | 南京比邻智能识别技术有限公司 | A kind of radio-frequency antenna standing wave self-sensing method and system |
| WO2019095730A1 (en) * | 2017-11-14 | 2019-05-23 | 京信通信***（中国）有限公司 | Power monitoring method and device |
-
2012
- 2012-04-11 CN CN201220150596XU patent/CN202679377U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553502A (en) * | 2015-12-31 | 2016-05-04 | 陕西烽火电子股份有限公司 | Shortwave radio and transmission protection method thereof |
| CN105553502B (en) * | 2015-12-31 | 2018-06-05 | 陕西烽火电子股份有限公司 | A kind of short-wave radio set and its transmitting guard method |
| CN106291131A (en) * | 2016-08-16 | 2017-01-04 | 江苏本能科技有限公司 | RFID antenna detection method and device |
| CN106680580A (en) * | 2016-12-30 | 2017-05-17 | 福建星海通信科技有限公司 | Measurement system of power and voltage standing wave ratio |
| CN106680580B (en) * | 2016-12-30 | 2019-10-22 | 福建星海通信科技有限公司 | A kind of measuring system of power and voltage standing wave ratio |
| WO2019095730A1 (en) * | 2017-11-14 | 2019-05-23 | 京信通信***（中国）有限公司 | Power monitoring method and device |
| CN109327239A (en) * | 2018-10-09 | 2019-02-12 | 南京泰通科技股份有限公司 | A kind of built-in base station duplex module with standing wave monitoring function low noise |
| CN109406885A (en) * | 2018-10-30 | 2019-03-01 | 南京比邻智能识别技术有限公司 | A kind of radio-frequency antenna standing wave self-sensing method and system |
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Granted publication date: 20130116 |
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