CN102905282B - Detect the method for indoor distribution antenna-feedback system and indoor antenna-feedback system checkout gear - Google Patents
Detect the method for indoor distribution antenna-feedback system and indoor antenna-feedback system checkout gear Download PDFInfo
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- CN102905282B CN102905282B CN201110215247.1A CN201110215247A CN102905282B CN 102905282 B CN102905282 B CN 102905282B CN 201110215247 A CN201110215247 A CN 201110215247A CN 102905282 B CN102905282 B CN 102905282B
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Abstract
The present invention relates to a kind of method and apparatus detecting indoor distribution antenna-feedback system.The method comprises: the signal sending constant intensity from the source node terminad node of antenna-feedback system; Endpoint node receives described signal; Pass through the difference of signal strength signal intensity of launching, receiving and the intrinsic link load of antenna-feedback system make comparisons, if both exceed the threshold value of setting, be then judged as that antenna-feedback system is abnormal.Device according to the method design mainly comprises main control module and at least 1 detection module, and main control module sends the signal of constant intensity by the chain road direction detection module of antenna-feedback system, and sends alarm signal according to the link loss information that detection module transmission is returned; Detection module receives the signal of main control module transmission by the link of described antenna-feedback system, and obtains the link load from described source node to endpoint node according to described signal strength signal intensity, and link loss information is sent it back main control module.The present invention can unattended operation real time on-line monitoring indoor distribution antenna-feedback system.
Description
Technical field
The invention belongs to indoor covering system technical field, particularly relate to a kind of can the method for real time on-line monitoring indoor distribution antenna-feedback system, and realize the device that the method adopts.
Background technology
Flourish along with the communication technology, indoor distributed system, as necessary supplementing in mobile radio communication, becomes an indispensable part in mobile radio communication.Indoor distribution is responsible for transmission and the distribution of signal by antenna-feedback system, once antenna-feedback system goes wrong, directly will affect the covering of signal.So, how to monitor the running status of antenna-feedback system, become a new problem being badly in need of solving.
In prior art, be not still specifically designed to the device that real-time online detects indoor distribution antenna-feedback system.
To detect antenna-feedback system, special messenger can only be sent to carry special instrument and reach the spot, indoor distribution antenna-feedback system be taken apart piecemeal and detects.The manpower and materials of this method one side at substantial, and do not accomplish Real-Time Monitoring; First must close indoor covering system on the other hand in the process detected, overlay area will become signal blind zone, does not accomplish on-line checkingi.So ad hoc inspection and repair can only be used for, real time on-line monitoring cannot be accomplished.
Summary of the invention
Technical problem to be solved by this invention be to provide a kind of can the method and apparatus of Real-Time Monitoring in-door covering antenna-feedback system, can while indoor distribution antenna-feedback system normally runs, the running status of this system of Real-Time Monitoring, when in-door covering antenna-feedback system occurs abnormal, can abnormal information be real-time monitored, and active alarm.
The technical scheme that the present invention solves the problems of the technologies described above is as follows:
Detect a method for indoor distribution antenna-feedback system, comprising:
The signal of constant intensity is sent from the source node terminad node of antenna-feedback system;
Endpoint node receives described signal;
Pass through launched signal strength signal intensity to compare with the path loss of the source node predicted to endpoint node with the difference of the signal strength signal intensity received, if described difference and path loss do not conform to and described difference and path loss differ by more than predetermined threshold value between the two, be then judged as that antenna-feedback system occurs abnormal; Or judge whether the signal strength signal intensity that endpoint node receives exceeds default threshold value, if beyond the threshold value preset, be then judged as that antenna-feedback system occurs abnormal, send alarm signal.
A kind of indoor distribution antenna-feedback system checkout gear, comprise main control module and at least 1 detection module, described main control module is arranged at the source node place of described antenna-feedback system, and described detection module is arranged at the endpoint node place of described antenna-feedback system; Described main control module is used for detection module described in the chain road direction by described antenna-feedback system and sends the signal of constant intensity, and receive detection module send return link loss information, link loss information is compared with the threshold value preset, if exceed threshold value, sends alarm signal; Described detection module is used for the signal being received the transmission of described main control module by the link of described antenna-feedback system, and detect the intensity of the signal received, and obtain the link load from described source node to endpoint node according to described signal strength signal intensity, and link loss information is sent it back described main control module.
The method of above-mentioned detection indoor distribution antenna-feedback system and the beneficial effect of indoor distribution antenna-feedback system checkout gear are: to the detection of antenna-feedback system, no longer need to send special messenger to carry special instrument to reach the spot, indoor distribution antenna-feedback system is taken apart piecemeal and detects, save manpower and materials, and can Real-Time Monitoring be accomplished; Need not close indoor covering system on the other hand in the process detected, overlay area can not become signal blind zone, can accomplish on-line checkingi, and installs facility, does not need to change original indoor distribution antenna-feedback system, can carry out real time and on line monitoring to it.
On the basis of technique scheme, the present invention can also do following improvement.
Further, described main control module comprises the first radio-frequency (RF) receiving and transmission module, the first micro-control processing unit and communication module; Described first micro-control processing unit is connected with the first rf chip and communication module respectively; Described first radio-frequency (RF) receiving and transmission module, for sending the signal of constant intensity to described detection module with fixed-size transmitting power, and receives detection module and sends the link loss information of returning, and link loss information is transmitted to the first micro-control processing unit; Described first micro-control processing unit, for the link loss information received being compared with the threshold value preset, if exceed threshold value, sends alarm signal by communication module; Described communication module is used for sending alarm signal.
Further, described detection module comprises the second micro-control processing unit, the second radio-frequency (RF) receiving and transmission module and the radio-frequency receiving-transmitting antenna that connect in turn; Described second radio-frequency (RF) receiving and transmission module, for being received the signal of described main control module transmission from the link of described antenna-feedback system by radio-frequency receiving-transmitting antenna, and is transmitted to described second micro-control processing unit; Described second radio-frequency (RF) receiving and transmission module is also for sending it back described main control module by the link loss information received from the second micro-control processing unit by radio-frequency receiving-transmitting antenna; Described second micro-control processing unit, for detecting the signal strength signal intensity receiving main control module transmission from the second radio-frequency (RF) receiving and transmission module, and obtain the link load from described source node to endpoint node according to described signal strength signal intensity, and link loss information is sent it back the second radio-frequency (RF) receiving and transmission module.
Further, described main control module is connected by the source node of mixer with described antenna-feedback system.
Further, communication carrier frequency between described main control module and detection module is ISM (Industrial Scientific Medical, industry, science, medical science, main opening uses to industry, science, medical science three principal organ, this frequency range defines out according to US Federal Communication Committee, the not restriction of use authority) frequency range.
Accompanying drawing explanation
The procedure schematic diagram of the real-time online detection indoor distribution antenna-feedback system that Fig. 1 provides for the embodiment of the present invention;
The real-time online indoor distribution antenna-feedback system structure of the detecting device schematic diagram that Fig. 2 provides for the embodiment of the present invention.
Embodiment
Be described principle of the present invention and feature below in conjunction with accompanying drawing, example, only for explaining the present invention, is not intended to limit scope of the present invention.
In order to can the operating state of real time on-line monitoring indoor distribution antenna-feedback system, the present invention is based on after indoor distribution antenna-feedback system installs, path loss from source node to each endpoint node is feature that is fixing and precognition, provides following method: the signal sending constant intensity from the source node terminad node of antenna-feedback system; Endpoint node receives described signal; Pass through launched signal strength signal intensity to compare with the path loss of the source node predicted to endpoint node with the difference of the signal strength signal intensity received, if described difference and path loss do not conform to and described difference and path loss differ by more than predetermined threshold value between the two, be then judged as that antenna-feedback system occurs abnormal; Or directly judge whether the signal strength signal intensity that endpoint node receives exceeds default threshold value, if beyond the threshold value preset, be then judged as that antenna-feedback system occurs abnormal, send alarm signal.
Said method is realized by following means:
By arranging a source node main control unit at the source node of indoor distribution antenna-feedback system, and in each endpoint node (cover antenna), respectively arrange one with monolithic low cost low-power consumption rf chip (namely, radio-frequency (RF) receiving and transmission module) an endpoint node detection module, communicated with each endpoint node detection module respectively by indoor distribution antenna-feedback system by source node main control unit, communication carrier frequency is the ISM band of exempting to apply for.Source node main control unit is launched with fixed-size transmitting power, and each endpoint node detection module, by detecting the signal strength signal intensity received, can draw the link load (LinkLoss) of respective link.
When indoor distribution antenna-feedback system normally runs, source node is to predict to the link load (LinkLoss) of each endpoint node and is changeless.If a certain section of indoor distribution antenna-feedback system because of parts damages or be subject to damage and occur exception, corresponding link load (LinkLoss) also can change.When link load (LinkLoss) changing value exceedes threshold value (Threshold) of setting, can judge that this link occurs abnormal, and abnormal information is complained to network management center.
According to said method, the invention provides a kind of device of real time on-line monitoring in-door covering antenna-feedback system, mainly comprise:
Source node main control unit: be integrated with monolithic low cost low-power consumption rf chip (namely, radio-frequency (RF) receiving and transmission module), the source node place of indoor distribution antenna-feedback system is arranged on by mixer, be responsible for by monolithic low cost low-power consumption rf chip with each endpoint node detection module of fixed-size transmitting power periodic polling, and receive the information that each endpoint node detection module sends the link load of returning, the threshold value (Threshold) of link load (LinkLoss) with setting is contrasted, if exceeded, identifies alarm signal.Source node main control unit is communicated with network management center by wireless Modem, can in real time and network management center carry out data interaction, if there is alarm signal, initiatively to network management center's alarm.
Endpoint node detection module: module integration monolithic low cost low-power consumption rf chip, is arranged on the endpoint node place of indoor distribution antenna-feedback system, i.e. each cover antenna place.Each endpoint node detection module is assigned a unique address, be responsible for the signal magnitude of being come by monolithic low cost low-power consumption rf chip detection resources node master unit transmissions, and calculate the link load (LinkLoss) of this node and source node, and link load (LinkLoss) is replied to source node main control unit.
Below specifically said method and device are further elaborated.
As shown in Figure 1, be the procedure schematic diagram of the real-time online detection indoor distribution antenna-feedback system that the embodiment of the present invention provides, the method for described real-time online detection indoor distribution antenna-feedback system can be as described below.
Embodiment of the present invention employing group is from networking mode, each endpoint node has a fixing subaddressing code, successively poll is initiated to each endpoint node detection module by source node main control unit, each endpoint node detection module receives the polling message identical with the address code of self, then make corresponding action and reply.
The embodiment of the present invention adopts polling mechanism, concrete steps: step S101, and when polling mechanism timer overflows, source node main control unit passes through monolithic low cost low-power consumption rf chip with fixed-size transmitting power poll endpoint node detection module 1;
Step S102: endpoint node detection module 1 receives the signal that source node main control unit launches, signal strength signal intensity is detected, because transmitting power is fixing, so the link load (LinkLoss-1) of this link can be calculated, and link loss value is replied to source node main control unit;
Step S103: source node main control unit receives endpoint node detection module 1 and replys the signal of coming, obtain the link load (LinkLoss-1) of this link, compare with the threshold value preset (Threshold-1), if be greater than threshold value, then put this chain circuit alarming mark (Alarm-1);
Step S104: source node main control unit repeats step S101, S102, S103, successively poll remaining endpoint node detection module n, obtains corresponding link load (LinkLoss-n) and alarm identifier (Alarm-n);
Step S105: there is alarm if had, warning information is initiatively complained to network management center by source node main control unit.If there is no alarm, source node main control unit preserves the link load (LinkLoss-n) of each bar link that this poll obtains, and in order to network management center's inquiry, thus achieves the intelligent monitoring to indoor distribution antenna-feedback system.
The real-time online indoor distribution antenna-feedback system structure of the detecting device schematic diagram that Fig. 2 provides for the embodiment of the present invention, this apparatus structure can be as described below.
The embodiment of the present invention adopts one master and multiple slaves mode, is made up of a source node main control unit and several endpoint node end detection modules, and source node main control unit is maximum in theory supports infinite multiple endpoint node detection module.Source node main control module sends the signal of constant intensity by the chain road direction detection module of antenna-feedback system, and receive endpoint node detection module send return link loss information, link loss information is compared with the threshold value preset, if exceed threshold value, sends alarm signal; Endpoint node detection module receives the signal of source node main control module transmission by the link of antenna-feedback system, and detect this signal strength signal intensity, and obtain the link load from source node to endpoint node according to this signal strength signal intensity, and link loss information is sent it back source node main control module.
Source node main control unit forms, by mains-supplied primarily of monolithic low cost low-power consumption rf chip, the first micro-control processing unit, Modem communication module.Wherein rf chip sends the signal of constant intensity with fixed-size transmitting power terminad nodal test module, and receives endpoint node detection module and send the link loss information of returning, and link loss information is transmitted to the first micro-control processing unit; The link loss information received compares with the threshold value preset by the first micro-control processing unit, if exceed threshold value, sends alarm signal by Modem communication module to network management center; Modem communication module is used for sending alarm signal.Can communicate to wirelessly between source node main control module and network management center.
Endpoint node detection module is primarily of monolithic low cost low-power consumption rf chip, the second micro-control processing unit, radio-frequency receiving-transmitting antenna composition.Employing super low-power consumption is arranged, and by dry cell power supply, inside carries antenna.Rf chip receives the signal of source node main control module transmission from the link of antenna-feedback system by radio-frequency receiving-transmitting antenna, and be transmitted to the second micro-control processing unit; In addition, the second rf chip is also for sending it back source node main control module by the link loss information received from the second micro-control processing unit by radio-frequency receiving-transmitting antenna; Second micro-control processing unit detects the signal strength signal intensity receiving the transmission of source node main control module from the second rf chip, and obtain the link load from source node to endpoint node according to this signal strength signal intensity, and link loss information is sent it back the second rf chip.
During project installation networking, place a source node main control unit at the root node of indoor distribution antenna-feedback system, place an endpoint node detection module at each endpoint node (i.e. cover antenna) of indoor distribution antenna-feedback system.Be a link between each endpoint node to root node, the corresponding link of each endpoint node detection module.
As shown in Figure 2, only need increase a mixer can include the device that the embodiment of the present invention provides in indoor distribution antenna-feedback system, changes without the need to doing other to antenna-feedback system, all very convenient with maintenance to project installation.Thus achieve the intelligent monitoring to indoor distribution antenna-feedback system.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. detect a method for indoor distribution antenna-feedback system, it is characterized in that, comprising:
The signal of constant intensity is sent from the source node terminad node of antenna-feedback system;
Endpoint node receives described signal;
Pass through launched signal strength signal intensity to compare with the path loss of the source node predicted to endpoint node with the difference of the signal strength signal intensity received, if described difference and path loss do not conform to and described difference and path loss differ by more than predetermined threshold value between the two, be then judged as that antenna-feedback system occurs abnormal;
Each endpoint node has a fixing subaddressing code, and initiate poll to each endpoint node detection module successively by source node main control module, each endpoint node detection module receives the polling message identical with the address code of self, then make corresponding action and reply.
2. an indoor distribution antenna-feedback system checkout gear, is characterized in that:
Comprise main control module and at least 1 detection module, described main control module is arranged at the source node place of described antenna-feedback system, and described detection module is arranged at the endpoint node place of described antenna-feedback system;
Described main control module is used for detection module described in the chain road direction by described antenna-feedback system and sends the signal of constant intensity, and receive detection module send return link loss information, link loss information is compared with the threshold value preset, if exceed threshold value, sends alarm signal;
Described detection module is used for the signal being received the transmission of described main control module by the link of described antenna-feedback system, and detect the intensity of the signal received, and obtain the link load from described source node to endpoint node according to described signal strength signal intensity, and link loss information is sent it back described main control module;
Each endpoint node has a fixing subaddressing code, successively poll is initiated to the described detection module of each endpoint node by the described main control module of source node, the described detection module of each endpoint node receives the polling message identical with the address code of self, then make corresponding action and reply;
Described main control module is connected by the source node of mixer with described antenna-feedback system.
3. indoor distribution antenna-feedback system checkout gear according to claim 2, is characterized in that:
Described main control module comprises the first radio-frequency (RF) receiving and transmission module, the first micro-control processing unit and communication module; Described first micro-control processing unit is connected with the first rf chip and communication module respectively;
Described first radio-frequency (RF) receiving and transmission module, for sending the signal of constant intensity to described detection module with fixed-size transmitting power, and receives detection module and sends the link loss information of returning, and link loss information is transmitted to the first micro-control processing unit;
Described first micro-control processing unit, for the link loss information received being compared with the threshold value preset, if exceed threshold value, sends alarm signal by communication module;
Described communication module is used for sending alarm signal.
4. indoor distribution antenna-feedback system checkout gear according to claim 2, is characterized in that:
Described detection module comprises the second micro-control processing unit, the second radio-frequency (RF) receiving and transmission module and the radio-frequency receiving-transmitting antenna that connect in turn;
Described second radio-frequency (RF) receiving and transmission module, for being received the signal of described main control module transmission from the link of described antenna-feedback system by radio-frequency receiving-transmitting antenna, and is transmitted to described second micro-control processing unit; Described second rf chip is also for sending it back described main control module by the link loss information received from the second micro-control processing unit by radio-frequency receiving-transmitting antenna;
Described second micro-control processing unit, for detecting the signal strength signal intensity receiving main control module transmission from the second radio-frequency (RF) receiving and transmission module, and obtain the link load from described source node to endpoint node according to described signal strength signal intensity, and link loss information is sent it back the second radio-frequency (RF) receiving and transmission module.
5. the indoor distribution antenna-feedback system checkout gear according to any one of claim 2 to 4, is characterized in that: the communication carrier frequency between described main control module and detection module is ISM band.
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| CN104936214B (en) * | 2015-06-11 | 2019-03-15 | 中国联合网络通信集团有限公司 | Detect the method and device of antenna feeder covering variation |
| CN108289304B (en) * | 2017-06-01 | 2021-04-27 | 中国移动通信有限公司研究院 | Information processing method, intelligent gateway and storage medium |
| CN108152732B (en) * | 2018-02-06 | 2024-04-23 | 扬州海科电子科技有限公司 | Online detection device and method for radio frequency relay |
| CN110611932B (en) * | 2018-06-15 | 2023-05-05 | 中国移动通信有限公司研究院 | Link loss mismatch degree detection method, system and computer storage medium |
| CN110662242B (en) * | 2018-06-29 | 2022-09-13 | 中兴通讯股份有限公司 | Antenna feeder system detection method, network management equipment and computer readable storage medium |
| CN110149654B (en) * | 2019-05-10 | 2022-09-16 | 中国联合网络通信集团有限公司 | Method and device for determining faults of base station antenna feeder system |
| CN110278043B (en) * | 2019-06-14 | 2020-05-12 | 深圳市觅拓物联信息技术有限公司 | Method for monitoring link loss through Bluetooth beacon, gateway equipment and storage medium |
| CN114302445B (en) * | 2021-12-16 | 2023-08-29 | 中国人民解放军战略支援部队信息工程大学 | Wireless signal receiving and transmitting method and system based on polling networking working mode |
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| CN102014415A (en) * | 2010-12-01 | 2011-04-13 | 中兴通讯股份有限公司 | Method for detecting base station feed system on line, base station system and antenna suite |
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| CN201039402Y (en) * | 2007-04-28 | 2008-03-19 | 华为技术有限公司 | Power supply and detection device for antenna feeder system |
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| CN102014415A (en) * | 2010-12-01 | 2011-04-13 | 中兴通讯股份有限公司 | Method for detecting base station feed system on line, base station system and antenna suite |
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