CN102843717A - Passive monitoring device and method of indoor coverage system - Google Patents

Passive monitoring device and method of indoor coverage system Download PDF

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Publication number
CN102843717A
CN102843717A CN2012102659391A CN201210265939A CN102843717A CN 102843717 A CN102843717 A CN 102843717A CN 2012102659391 A CN2012102659391 A CN 2012102659391A CN 201210265939 A CN201210265939 A CN 201210265939A CN 102843717 A CN102843717 A CN 102843717A
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radio frequency
coupling
covering system
radiofrequency signal
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CN102843717B (en
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郑国明
林利爽
张晶
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Xiamen teletom information technology Limited by Share Ltd
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XIMEN TELETOM SCIENCE AND TECHNOLOGY Co Ltd
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Abstract

The invention relates to a passive monitoring device and method of an indoor coverage system. The device comprises a first coupling unit, a second coupling unit, an energy collection unit, a power division unit, a radio frequency communication unit, a power monitoring unit and a CPU (Central Processing Unit) unit, wherein an input port and an output port of the first coupling unit are a radio frequency input port and a radio frequency output port of the passive monitoring device of the indoor coverage system; a coupling port of the first coupling unit is connected with an input port of the second coupling unit; an output port of the second coupling unit is connected with the energy collection unit; the energy collection unit supplies power to the CPU unit, the radio frequency communication unit and the power detection unit; a coupling port of the second coupling unit is connected with an input port of the power division unit; a first output port of the power division unit is connected with the power monitoring unit; a second output port of the power division unit is connected with the radio frequency communication unit; and the CPU unit is connected with the radio frequency communication unit and the power monitoring unit through a data line.

Description

A kind of passive monitoring device and method of indoor covering system
Technical field
The present invention relates to a kind of monitoring equipment of mobile communications network indoor covering system, more particularly, relate to a kind of passive monitoring device and method of indoor covering system.
Background technology
Along with the universalness of mobile communication, user also improve the requirement of quality of service thereupon, therefore produce making telephonic requirement in indoor, tunnel and the subway.If only depend on outdoor base station to cover, will there be the problem unstable and that can't receive in the subsurface scope that receives indoor, therefore, indoor covering is a kind of effective method, each big operation commercial city is at a large amount of indoor covering systems of building at present.
As everyone knows, indoor covering system except that signal source, other all be passive device, like power splitter, mixer, coupler, radio frequency cable, domestic aerial.Usually only signal source is partly monitored now, can't monitor antenna opening.Why monitor less than antenna opening? The antenna of indoor covering system distributes and comparatively disperses, and antenna amount is big, tens antennas at least, and up to a hundred antennas at most, the feeder line cabling is complicated, all is to walk concealed wire usually, if lay power line along feeder line, potential safety hazard is big.The technology that does not have a kind of easy realization antenna opening power supply at present.
Owing to lack a kind of low cost, method of supplying power to efficiently, the monitoring problem of antenna end has perplexed each big operator greatly, how to realize to antenna end in real time, monitoring efficiently, be that the difficult problem that solves is badly in need of in each big operator.
Chinese invention patent application number 201110080039.5 discloses a kind of system that indoor distribution device is carried out the wireless aware monitoring; Said system comprises: wireless aware unit, wireless aware controller, control centre and transport gateway, and said wireless aware unit is connected through wireless-aware network with said wireless aware controller; Said wireless aware controller is connected through mobile communications network with said transport gateway; Said transport gateway is connected through core transport network with said control centre.Said invention is based on the application of Internet of Things in mobile network, the fault point of distribution device in the orientation room, thereby the operating state of the passive device of realization monitoring indoor distributed system.
Though the technical scheme of above-mentioned invention application provides solution that the operating state of the passive device of indoor distributed system is monitored, still there is deficiency in it:
(1) in antenna end radiofrequency signal is gathered and monitored, can only reach the effect of the localization of faults, can not realize monitoring passive device;
(2) wireless aware equipment still needs independent current source, and its extensive use receives the restriction of power distribution easily;
(3) realize the monitoring to indoor public address system based on Internet of Things, because the quantity of an indoor distributed system and few is used Internet of Things, technical scheme is complicated, and cost is higher;
(4) if want the chamber subsystem of a plurality of office buildings is unified networking, reduce cost with this, but because the restriction of transmission range, the feasibility of large-scale network-estabilishing is lower, can not realize basically.
Summary of the invention
The objective of the invention is to overcome the deficiency of prior art, provide a kind of simple in structure, realize that cost is low, can use on a large scale.Can be in real time accurate fault location link, the power of the indoor covering system antenna opening that can monitor in real time again, and the monitoring device that need not to supply power, and a kind of method of described basically device is provided.
Technical scheme of the present invention is following:
A kind of passive monitoring device of indoor covering system comprises first coupling unit, second coupling unit, energy acquisition unit, merit subdivision, radio frequency communications unit, power monitoring unit and CPU element; The input port of first coupling unit, delivery outlet are rf input port, the radio frequency delivery outlet of the passive monitoring device of indoor covering system; The coupling aperture of first coupling unit is connected with the input port of second coupling unit, and the delivery outlet of second coupling unit is connected with the energy acquisition unit, and the energy acquisition unit provides power supply to CPU element, radio frequency communications unit, power detecting unit; The coupling aperture of second coupling unit is connected with the input port of merit subdivision; First delivery outlet of merit subdivision is connected with the power monitoring unit; Second delivery outlet of merit subdivision is connected with radio frequency communications unit, and CPU element is connected with the power monitoring unit with radio frequency communications unit through data wire.
As preferably, described energy acquisition unit is the RF-DC change-over circuit, is used for converting radiofrequency signal to direct voltage.
As preferably, described RF-DC change-over circuit links to each other with the rectification stepup transformer, and direct voltage output is not less than 1.8V.
As preferably, described rectification stepup transformer links to each other with voltage clipper.
As preferably, the power monitoring unit comprises detection tube, realizes the radio frequency detection through detection tube; Detect the radiofrequency signal power of input power detecting unit, and the analogue data of monitoring is sent to CPU element, by CPU analogue data is carried out analog-to-digital conversion, recording powers of laser beam draws the performance number of importing this device through computing.
As preferably, radio frequency communications unit comprises wireless data transmission module, is used for receiving the radiofrequency signal from the merit subdivision; Be demodulated to baseband signal; And signal issued CPU element, CPU element is analyzed signal, if query statement then sends ID and performance number through radio frequency communications unit; Radio frequency communications unit is modulated to radiofrequency signal with ID that receives and performance number information, and radiofrequency signal is launched from the merit subdivision through the radio frequency mouth.
As preferably, the delivery outlet of the passive monitoring device of described indoor covering system is connected with antenna, and the input port of the passive monitoring device of indoor covering system receives the radiofrequency signal of indoor distributed system.
A kind of method of passive monitoring of indoor covering system, step is following:
1) radiofrequency signal is directly exported through first coupling unit, through coupling aperture output, links to each other with the input port of second coupling unit simultaneously;
2) radiofrequency signal is connected with the energy acquisition unit through the delivery outlet of second coupling unit, exports the merit subdivision to through coupling aperture simultaneously;
3) the energy acquisition unit converts radiofrequency signal to voltage, to CPU element, radio frequency communications unit, power detecting unit power supply is provided.
As preferably, radiofrequency signal becomes direct voltage through the energy acquisition cell translation.
As preferably, described direct voltage is adjusted into the direct voltage that is not less than 1.8V through the rectification stepup transformer.
Beneficial effect of the present invention is following:
The passive monitoring device of indoor covering system of the present invention; Before the antenna of indoor covering system, insert passive monitoring device; The delivery outlet of passive monitoring device is connected with antenna; The input port of passive monitoring device receives the radiofrequency signal of indoor distributed system, and converts the part radio frequency into direct voltage, supplies device of the present invention to use.
This device is the radiofrequency signal power of monitoring input port in real time, and as required self ID and performance number are gone out through emission of radio frequency signals, realizes accurately location and monitoring in real time.
Based on the RF-DC change-over circuit, convert radiofrequency signal to direct voltage, simple in structure, do not receive the restriction of extraneous power distribution, possibly use on a large scale.
Description of drawings
Fig. 1 is a structured flowchart of the present invention;
Fig. 2 is the schematic diagram of energy acquisition unit;
Among the figure: 1 is first coupling unit, and 2 is second coupling units, the 3rd, and energy acquisition unit, the 4th, merit subdivision, the 5th, radio frequency communications unit, the 6th, power monitoring unit, the 7th, CPU element, the 8th, rf input port, the 9th, radio frequency delivery outlet.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
As shown in Figure 1, a kind of passive monitoring device of indoor covering system comprises first coupling unit 1, second coupling unit 2, energy acquisition unit 3, merit subdivision 4, radio frequency communications unit 5, power monitoring unit 6 and CPU element 7; The input port of first coupling unit 1, delivery outlet are rf input port 8, the radio frequency delivery outlet 9 of the passive monitoring device of indoor covering system; The coupling aperture of first coupling unit 1 is connected with the input port of second coupling unit 2, and the delivery outlet of second coupling unit 2 is connected with energy acquisition unit 3, and energy acquisition unit 3 provides power supply to CPU element 7, radio frequency communications unit 5, power detecting unit; The coupling aperture of second coupling unit 2 is connected with the input port of merit subdivision 4; First delivery outlet of merit subdivision 4 is connected with power monitoring unit 6; Second delivery outlet of merit subdivision 4 is connected with radio frequency communications unit 5, and CPU element 7 is connected with power monitoring unit 6 with radio frequency communications unit 5 through data wire.
The present invention provides a kind of method of passive monitoring of indoor covering system simultaneously, and step is following:
1) radiofrequency signal directly exports radio frequency delivery outlet 9 to through first coupling unit 1, through coupling aperture output, links to each other with the input port of second coupling unit 2 simultaneously;
2) radiofrequency signal is connected with energy acquisition unit 3 through the delivery outlet of second coupling unit 2, exports merit subdivision 4 to through coupling aperture simultaneously;
3) energy acquisition unit 3 converts radiofrequency signal to voltage, to CPU element 7, radio frequency communications unit 5, power detecting unit 6 power supply is provided.
Described first coupling unit 1 is the passage of energy acquisition device and information uploading, and the input/output port of first coupling unit 1 promptly is the rf input port 8 and radio frequency delivery outlet 9 of this device.The window that coupled end is linked up for this device and indoor distributed system also is the pass key window that energy obtains.For reducing the influence to indoor distributed system, the first coupler coupling amount is selected according to the actual conditions of system, and span is 5 ~ 15dB.
Described second coupling unit 2 also is the passage of energy acquisition device and information uploading; Second coupling unit 2 is realized the inequality distribution of energy; Straight-through end is connected with energy acquisition unit 3; Guarantee that the energy acquiring unit can obtain enough energy, coupling port links to each other with the input port of merit subdivision 4.
Radiofrequency signal is converted into direct voltage through energy acquisition unit 3.Described energy acquisition unit 3 is RF-DC change-over circuits, is used for converting radiofrequency signal to direct voltage, to CPU element 7, radio frequency communications unit 5, power detecting unit in installing power supply is provided.
Described direct voltage is adjusted into the direct voltage that is not less than 1.8V through the rectification stepup transformer.As shown in Figure 2, BAT63-07W is the high-frequency rectification chip, transfers radiofrequency signal to direct current signal Power1, and direct current signal Power1 adopts the C106 capacitor filtering, voltage stabilizing didoe D104 protection, and the input voltage of the chip that prevents to boost is too high, damages back level device.Direct current signal Power1 through the chip BQ25504 that boosts with boost in voltage to more than the 1.8v, the energy after boosting charges to electric capacity, and as the power supply of equipment.For guaranteeing effective use of energy, the output Power2 of power supply adopts certain duty ratio, guarantees the enough equipment long-term works of energy of energy collecting unit 3 storages.
Described merit subdivision 4 is to be used for the radiofrequency signal from the input of second coupling unit 2 is divided into two-way, and one the tunnel is that power monitoring unit 6 provides monitor signal, and one the tunnel is that the radiofrequency signal of radio frequency communications unit 5 provides transmission channel.
Power monitoring unit 6 comprises detection tube, realizes the radio frequency detection through detection tube; Detect the radiofrequency signal power of input power detecting unit 6, and the analogue data of monitoring is sent to CPU element 7, carry out analog-to-digital conversion by 7 pairs of analogue datas of CPU element, recording powers of laser beam draws the performance number of importing this device through computing.
Radio frequency communications unit 5 is used for receiving the radiofrequency signal from merit subdivision 4, is demodulated to baseband signal, and signal is issued CPU element 7, and 7 pairs of signals of CPU element are analyzed, if query statement then sends ID and performance number through radio frequency communications unit 5.Radio frequency communications unit 5 is modulated to radiofrequency signal with ID that receives and performance number information, and radiofrequency signal is launched from merit subdivision 4 through the radio frequency mouth.
Radio frequency communications unit 5 comprises wireless data transmission module; In the present embodiment, described wireless data transmission module adopts chip CC1101 to realize, is used for receiving the radiofrequency signal from merit subdivision 4; Be demodulated to baseband signal; And signal issued CPU element 7,7 pairs of signals of CPU element are analyzed, if query statement then sends ID and performance number through radio frequency communications unit 5.Radio frequency communications unit 5 is modulated to radiofrequency signal with ID that receives and performance number information, and radiofrequency signal is launched from merit subdivision 4 through the radio frequency mouth.
The delivery outlet of the passive monitoring device of described indoor covering system is connected with antenna, and the input port of the passive monitoring device of indoor covering system receives the radiofrequency signal of indoor distributed system.
Described CPU element 7 is the core of passive monitoring device, is used for receiving instruction, analysis instruction, and make corresponding feedback.
The foregoing description only is to be used for explaining the present invention, and is not with the qualification of the present invention of opposing.So long as according to technical spirit of the present invention, to the foregoing description change, modification etc. all will drop in the scope of claim of the present invention.

Claims (10)

1. the passive monitoring device of an indoor covering system is characterized in that, comprises first coupling unit, second coupling unit, energy acquisition unit, merit subdivision, radio frequency communications unit, power monitoring unit and CPU element; The input port of first coupling unit, delivery outlet are rf input port, the radio frequency delivery outlet of the passive monitoring device of indoor covering system; The coupling aperture of first coupling unit is connected with the input port of second coupling unit, and the delivery outlet of second coupling unit is connected with the energy acquisition unit, and the energy acquisition unit provides power supply to CPU element, radio frequency communications unit, power detecting unit; The coupling aperture of second coupling unit is connected with the input port of merit subdivision; First delivery outlet of merit subdivision is connected with the power monitoring unit; Second delivery outlet of merit subdivision is connected with radio frequency communications unit, and CPU element is connected with the power monitoring unit with radio frequency communications unit through data wire.
2. the passive monitoring device of indoor covering system according to claim 1 is characterized in that, described energy acquisition unit is the RF-DC change-over circuit, is used for converting radiofrequency signal to direct voltage.
3. the passive monitoring device of indoor covering system according to claim 2 is characterized in that, described RF-DC change-over circuit links to each other with the rectification stepup transformer, and direct voltage output is not less than 1.8V.
4. the passive monitoring device of indoor covering system according to claim 3 is characterized in that, described rectification stepup transformer links to each other with voltage clipper.
5. the passive monitoring device of indoor covering system according to claim 1 is characterized in that, the power monitoring unit comprises detection tube, realizes the radio frequency detection through detection tube; Detect the radiofrequency signal power of input power detecting unit, and the analogue data of monitoring is sent to CPU element, by CPU element analogue data is carried out analog-to-digital conversion, recording powers of laser beam draws the performance number of importing this device through computing.
6. the passive monitoring device of indoor covering system according to claim 1; It is characterized in that radio frequency communications unit comprises wireless data transmission module, be used for receiving radiofrequency signal from the merit subdivision; Be demodulated to baseband signal; And signal issued CPU element, CPU element is analyzed signal, if query statement then sends ID and performance number through radio frequency communications unit; Radio frequency communications unit is modulated to radiofrequency signal with ID that receives and performance number information, and radiofrequency signal is launched from the merit subdivision through the radio frequency mouth.
7. the passive monitoring device of indoor covering system according to claim 1; It is characterized in that; The delivery outlet of the passive monitoring device of described indoor covering system is connected with antenna, and the input port of the passive monitoring device of indoor covering system receives the radiofrequency signal of indoor distributed system.
8. the method for the passive monitoring of an indoor covering system is characterized in that, step is following:
1) radiofrequency signal is directly exported through first coupling unit, through coupling aperture output, links to each other with the input port of second coupling unit simultaneously;
2) radiofrequency signal is connected with the energy acquisition unit through the delivery outlet of second coupling unit, exports the merit subdivision to through coupling aperture simultaneously;
3) the energy acquisition unit converts radiofrequency signal to voltage, to CPU element, radio frequency communications unit, power detecting unit power supply is provided.
9. the method for the passive monitoring of indoor covering system according to claim 8 is characterized in that, radiofrequency signal becomes direct voltage through the energy acquisition cell translation.
10. the method for the passive monitoring of indoor covering system according to claim 9 is characterized in that, described direct voltage is adjusted into the direct voltage that is not less than 1.8V through the rectification stepup transformer.
CN201210265939.1A 2012-07-27 2012-07-27 The passive monitoring device of a kind of indoor covering system and method Active CN102843717B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817417A (en) * 2016-09-14 2018-03-20 中国电信股份有限公司 Obstacle point detecting method and system and test equipment

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CN202196175U (en) * 2011-09-04 2012-04-18 杭州时祺科技有限公司 Termite detection device and termite detection system based on wireless network
CN202738113U (en) * 2012-07-27 2013-02-13 厦门特力通信息技术有限公司 Passive monitoring device for indoor coverage system

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Publication number Priority date Publication date Assignee Title
CN101312576A (en) * 2007-05-23 2008-11-26 上海国欣科技发展有限公司 Centralized monitoring device with antenna feedback lines and control method thereof
CN101873179A (en) * 2010-03-31 2010-10-27 厦门特力通信息技术有限公司 Monitoring method and monitoring device of indoor covering system
CN102143511A (en) * 2011-03-31 2011-08-03 广州联正达通信科技股份有限公司 System and method for wirelessly sensing and monitoring indoor distribution device
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107817417A (en) * 2016-09-14 2018-03-20 中国电信股份有限公司 Obstacle point detecting method and system and test equipment

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