CN205377885U - Online monitored control system of standing wave and power - Google Patents
Online monitored control system of standing wave and power Download PDFInfo
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- CN205377885U CN205377885U CN201620003115.0U CN201620003115U CN205377885U CN 205377885 U CN205377885 U CN 205377885U CN 201620003115 U CN201620003115 U CN 201620003115U CN 205377885 U CN205377885 U CN 205377885U
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Abstract
The utility model discloses an online monitored control system of standing wave and power, it includes RF power amplifier, antenna and standing wave detection circuitry, feeder and antenna connection are passed through in the output of RF power amplifier, standing wave detection circuitry include directional coupler, forward detection circuit, reverse detection circuit, operational amplifier, threshold comparison circuit, an attenuator circuit and the 2nd attenuator circuit, still include a AD converter, the 2nd AD converter, microprocessor, data transmission module, surveillance center and indicator. The utility model discloses carry out real time monitoring to many online monitored control system of standing wave and power, both guaranteed the basic station and can in time get rid of the potential safety hazard, can not cause the waste of manpower resources again, and communication interruption. Safe convenient, high, the sexual valence relative altitude of reliability is fit for having had the upgrading of basic station to build simultaneously.
Description
Technical field
This utility model relates to a kind of standing wave and power online monitoring system.
Background technology
Power amplifier is widely used in mobile communication base station, but it is as prolongation and morning every day of working time, in, the difference of late state of temperature, its power is in change, but this change can bring great trouble to the normal operation of base station, standing-wave ratio (VSWR) is used to measure the index of radio circuit middle impedance mismatch, standing-wave ratio crosses conference will affect communication distance, the quality of reduction information transmission, and can cause that series of problems occurs in radio circuit, the power amplifier being positioned at antenna front ends is that standing wave is worsened most sensitive parts, reflection power returns in power amplifier, may result in high power amplifier when situation is serious and cause permanent damage, we are normally referred to as standing wave and lost efficacy, it is highly important that high power amplifier is effectively protected.
The power amplifier of application number a kind of novelty that has been the patent disclosure of 201120547057.5 is at linear heat generation rate and standing wave detecting device, but this device does not have the function of monitoring, namely the plurality of device cannot be carried out Centralized Monitoring, cause and be in different local assembly monitor difficulty.Meanwhile, this device does not possess indicating module yet.
Utility model content
The purpose of this utility model is in that to overcome the deficiencies in the prior art, it is provided that a kind of standing wave and power online monitoring system, monitors the data of multiple device.
The purpose of this utility model is achieved through the following technical solutions: a kind of standing wave and power online monitoring system, it includes radio-frequency power amplifier, antenna and standing wave detection circuit, and the output of radio-frequency power amplifier is connected with antenna by feeder line；Described standing wave detection circuit includes directional coupler, forward detecting circuit, reverse detecting circuit, operational amplifier, thresholding comparison circuit, first attenuator circuit and the second attenuator circuit, the input of directional coupler is connected with feeder line, one tunnel output of directional coupler is connected with forward detecting circuit by the first attenuator circuit, another road output of directional coupler is connected with reverse detecting circuit by the second attenuator circuit, the output of forward detecting circuit is connected with the normal phase input end of operational amplifier, the output of reverse detecting circuit is connected with the negative-phase input of operational amplifier, the output of operational amplifier is connected with thresholding comparison circuit, the output of thresholding comparison circuit is connected with radio-frequency power amplifier；System also includes the first converter, the second converter, microprocessor, data transmission module, Surveillance center and indicator；The input of the first described converter is connected with forward detecting circuit, the input of the second converter is connected with reverse detecting circuit, the outfan of the first converter and the outfan of the second converter are all connected with microprocessor, and data are sent to Surveillance center by the signal output part of microprocessor by data transmission module；The input of described indicator is connected with thresholding comparison circuit.
Described forward detecting circuit, reverse detecting circuit are constituted by logarithmic detector.
Described attenuator circuit is made up of PIN diode.
Described forward detecting circuit, the model of reverse detecting circuit are ADL5902ACPZ.
The model of described microprocessor is MSP430.
The model of described directional coupler is XC0900A-20S.
The model of described radio-frequency power amplifier is RA03M8894M.
Described data transmission module is wire transmission module or wireless transport module.
The beneficial effects of the utility model are:
(1) when base station is properly functioning, detect antenna feeder standing-wave ratio and output power in base station size is accurately detected, and the alarm threshold outputting alarm signal according to user setup.So both ensure that base station can get rid of potential safety hazard in time, do not result in again the waste of human resources and communication disruption.Simultaneously safe ready, reliability is high, cost performance is high, the upgrading being suitable for existing base station is built.
(2) this utility model adopts standing wave detection circuit, utilize the real-time standing wave Threshold detection that logarithmic detector realizes in conjunction with directional coupler, operational amplifier and corresponding control circuit, simplify the design process of side circuit, improve the output of power amplifier and the accuracy of standing-wave ratio detection, make a response when in time, effectively power amplifier output loading being changed, drastically increase the reliability of power amplifier, the reliably working of communication system is provided good guarantee.
(3) AD8362 true power logarithmic detector is adopted, its dynamic range is wider, the highest can reach 100dB, its linear characteristic and temperature stability also are able to keep constant in whole dynamic range, its output detecting circuit is directly proportional to incoming signal level, has a wide range of applications in standing-wave ratio detection and gain measurement.
Accompanying drawing explanation
Fig. 1 is this utility model module frame chart.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection domain of the present utility model is not limited to the following stated.
As it is shown in figure 1, a kind of standing wave and power online monitoring system, it includes radio-frequency power amplifier, antenna and standing wave detection circuit, and the output of radio-frequency power amplifier is connected with antenna by feeder line；Described standing wave detection circuit includes directional coupler, forward detecting circuit, reverse detecting circuit, operational amplifier, thresholding comparison circuit, first attenuator circuit and the second attenuator circuit, the input of directional coupler is connected with feeder line, one tunnel output of directional coupler is connected with forward detecting circuit by the first attenuator circuit, another road output of directional coupler is connected with reverse detecting circuit by the second attenuator circuit, the output of forward detecting circuit is connected with the normal phase input end of operational amplifier, the output of reverse detecting circuit is connected with the negative-phase input of operational amplifier, the output of operational amplifier is connected with thresholding comparison circuit, the output of thresholding comparison circuit is connected with radio-frequency power amplifier；System also includes the first converter, the second converter, microprocessor, data transmission module, Surveillance center and indicator；The input of the first described converter is connected with forward detecting circuit, the input of the second converter is connected with reverse detecting circuit, the outfan of the first converter and the outfan of the second converter are all connected with microprocessor, and data are sent to Surveillance center by the signal output part of microprocessor by data transmission module；The input of described indicator is connected with thresholding comparison circuit.
Described forward detecting circuit, reverse detecting circuit are constituted by logarithmic detector.
Described attenuator circuit is made up of PIN diode.Simple in construction, it is easy to accomplish.
Described forward detecting circuit, the model of reverse detecting circuit are ADL5902ACPZ.
The model of described microprocessor is MSP430.This microprocessor volume is little.
The model of described directional coupler is XC0900A-20S.
The model of described radio-frequency power amplifier is RA03M8894M.
Described data transmission module is wire transmission module or wireless transport module.
Specifically, radiofrequency signal is transferred to antenna through radio-frequency power amplifier amplification through directional coupler, is shot out by sky bundle of lines signal amplitude.The a part of signal of directional coupler is decayed through the first attenuator circuit, deliver to forward detecting circuit detect into galvanic current put down, deliver to operational amplifier and do reference level, owing to impedance Incomplete matching does not radiate the another part signal reflected again after the second attenuator circuit decay, sending into operational amplifier as comparative level after delivering to the detection of reverse detecting circuit, the outfan output operation result of operational amplifier is to thresholding comparison circuit.The output of operational amplifier is compared by thresholding comparison circuit with two thresholdings set, when below 0.14, and power amplifier normal operation；When higher than 0.14 lower than 0.29, control circuit controls attenuator makes power amplifier output attenuatoin 10dB；When higher than 0.29, control circuit closes power amplifier, and sending high level to indicator crosses standing wave warning signal simultaneously.Indicator is only just reported to the police when result is higher than 0.29.Indicator includes display lamp and buzzer.
Another part, the data of forward detecting circuit and reverse detecting circuit also export respectively and carry out digital-to-analogue conversion to the first converter and the second converter, carry out the data after digital-to-analogue conversion and send to microprocessor.Data are sent to Surveillance center by microprocessor by data transmission module.Surveillance center is monitored.
Claims (8)
1. standing wave and a power online monitoring system, it includes radio-frequency power amplifier, antenna and standing wave detection circuit, and the output of radio-frequency power amplifier is connected with antenna by feeder line；Described standing wave detection circuit includes directional coupler, forward detecting circuit, reverse detecting circuit, operational amplifier, thresholding comparison circuit, first attenuator circuit and the second attenuator circuit, the input of directional coupler is connected with feeder line, one tunnel output of directional coupler is connected with forward detecting circuit by the first attenuator circuit, another road output of directional coupler is connected with reverse detecting circuit by the second attenuator circuit, the output of forward detecting circuit is connected with the normal phase input end of operational amplifier, the output of reverse detecting circuit is connected with the negative-phase input of operational amplifier, the output of operational amplifier is connected with thresholding comparison circuit, the output of thresholding comparison circuit is connected with radio-frequency power amplifier；It is characterized in that: also include the first converter, the second converter, microprocessor, data transmission module, Surveillance center and indicator；The input of the first described converter is connected with forward detecting circuit, the input of the second converter is connected with reverse detecting circuit, the outfan of the first converter and the outfan of the second converter are all connected with microprocessor, and data are sent to Surveillance center by the signal output part of microprocessor by data transmission module；The input of described indicator is connected with thresholding comparison circuit.
2. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: described forward detecting circuit, reverse detecting circuit are constituted by logarithmic detector.
3. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: described attenuator circuit is made up of PIN diode.
4. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: described forward detecting circuit, the model of reverse detecting circuit are ADL5902ACPZ.
5. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: the model of described microprocessor is MSP430.
6. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: the model of described directional coupler is XC0900A-20S.
7. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: the model of described radio-frequency power amplifier is RA03M8894M.
8. a kind of standing wave according to claim 1 and power online monitoring system, it is characterised in that: described data transmission module is wire transmission module or wireless transport module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003115.0U CN205377885U (en) | 2016-01-05 | 2016-01-05 | Online monitored control system of standing wave and power |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620003115.0U CN205377885U (en) | 2016-01-05 | 2016-01-05 | Online monitored control system of standing wave and power |
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| CN205377885U true CN205377885U (en) | 2016-07-06 |
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| CN201620003115.0U Active CN205377885U (en) | 2016-01-05 | 2016-01-05 | Online monitored control system of standing wave and power |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106353589A (en) * | 2016-10-21 | 2017-01-25 | 成都前锋电子仪器有限责任公司 | Coupling detector |
| CN106569021A (en) * | 2016-10-20 | 2017-04-19 | 成都前锋电子仪器有限责任公司 | Signal conditioning circuit for radio-frequency power reflectometer |
| CN109217949A (en) * | 2017-06-29 | 2019-01-15 | 广州极飞科技有限公司 | Wireless communication apparatus and unmanned vehicle |
| CN109412540A (en) * | 2018-10-19 | 2019-03-01 | 成都中科天御通信技术有限公司 | A kind of wideband power amplifer |
| CN109787564A (en) * | 2019-01-18 | 2019-05-21 | 西安茂德通讯科技有限公司 | A kind of power amplifier module and its guard method |
| CN110971313A (en) * | 2018-09-12 | 2020-04-07 | 中兴通讯股份有限公司 | Vehicle-mounted TBOX (tunnel boring machine) and real-time antenna switching method, device and readable storage medium thereof |
| CN111884732A (en) * | 2020-07-15 | 2020-11-03 | 武汉博畅通信设备有限责任公司 | Standing-wave ratio warning circuit |
-
2016
- 2016-01-05 CN CN201620003115.0U patent/CN205377885U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106569021A (en) * | 2016-10-20 | 2017-04-19 | 成都前锋电子仪器有限责任公司 | Signal conditioning circuit for radio-frequency power reflectometer |
| CN106569021B (en) * | 2016-10-20 | 2023-08-01 | 成都前锋电子仪器有限责任公司 | Signal conditioning circuit for radio frequency power reflectometer |
| CN106353589A (en) * | 2016-10-21 | 2017-01-25 | 成都前锋电子仪器有限责任公司 | Coupling detector |
| CN109217949A (en) * | 2017-06-29 | 2019-01-15 | 广州极飞科技有限公司 | Wireless communication apparatus and unmanned vehicle |
| CN109217949B (en) * | 2017-06-29 | 2022-08-16 | 广州极飞科技股份有限公司 | Wireless communication device and unmanned vehicles |
| CN110971313A (en) * | 2018-09-12 | 2020-04-07 | 中兴通讯股份有限公司 | Vehicle-mounted TBOX (tunnel boring machine) and real-time antenna switching method, device and readable storage medium thereof |
| US11923935B2 (en) | 2018-09-12 | 2024-03-05 | Zte Corporation | Vehicle-mounted telematics box (TBOX), antenna real-time switching method and apparatus, and non-transitory computer-readable storage medium |
| CN109412540A (en) * | 2018-10-19 | 2019-03-01 | 成都中科天御通信技术有限公司 | A kind of wideband power amplifer |
| CN109787564A (en) * | 2019-01-18 | 2019-05-21 | 西安茂德通讯科技有限公司 | A kind of power amplifier module and its guard method |
| CN111884732A (en) * | 2020-07-15 | 2020-11-03 | 武汉博畅通信设备有限责任公司 | Standing-wave ratio warning circuit |
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