CN106211224A - The standing wave Fault Locating Method of radio communication indoor distributed system and system - Google Patents

Abstract

The standing wave Fault Locating Method of a kind of radio communication indoor distributed system and system, be system diagram and the plane graph of input indoor distributed system, input initial testing node；First in initial testing node test standing-wave ratio assignment test data, suspected fault point is filtered out according to the threshold value provided；Suspected fault point mates with system diagram, filters out suspect node, and compensates according to link attenuation, calculates the standing wave value of suspect node, it may be judged whether for actual fault point；When having multiple node corresponding with suspected fault point and can not uniquely confirm, backtracking provides next step test node repetitive operation until accurately drawing malfunctioning node.Use technical solution of the present invention, engineering staff's in-situ processing can be pointed out, until all trouble points have processed.The present invention solves conventional wireless network passive indoor distributed system malfunction elimination process complexity, inefficiency, the problem fail to judge, judged by accident.

Description

The standing wave Fault Locating Method of radio communication indoor distributed system and system

Technical field

The invention belongs to mobile communication indoor distribution system field, particularly to a kind of radio communication indoor distributed system Standing wave fault point positioning method and system.

Background technology

The indoor distributed system of mobile communication is mainly made up of active equipment and passive compartment system, wherein without source distribution system System is made up of feeder line, passive device, antenna, it is achieved radiofrequency signal transmission in building and covering.Indoor distributed system Malfunction elimination mainly includes fault location and two steps of troubleshooting, and the malfunction elimination of the most passive compartment system is that it is heavy Point.Construction quality and the major failure that quality problems are passive compartment system of passive device, can cause at the bottom of mobile communication system Make an uproar lifting, cover the problems such as bad, speech quality is poor, call drop.

Along with the development of mobile communication technology, the effect of indoor distributed system is more and more important, after steel tower company sets up, and room The degree dividing Joint construction and sharing is higher, and frequency range and the standard of closing road also get more and more, and thus put forward the quality of indoor distributed system Go out higher requirement.Present stage, the fault of indoor passive compartment system is mainly tested by standing-wave ratio and the side of intermodulation testing Method is investigated.Owing to compartment system employs the Insertion Loss of a number of passive device, passive device and feeder line to test There is large effect in value, the judgement to fault forms misleading, easily omits trouble point；There is a plurality of branch road in room subsystem, right The judgement of trouble point particular location forms certain interference.Therefore at present technology requirement when carrying out fault location, to engineering staff Higher with skill requirement, troubleshooting procedure is complicated, inefficiency, and owing to trouble point omission probability is higher, rectification effect is the most not Preferable.

Summary of the invention

The present invention is directed to passive compartment system malfunction elimination process complexity, inefficiency, easily omit trouble point, rectify and improve effect Undesirable problem, proposes to use standing-wave ratio assignment test data, in conjunction with room subsystem schematic diagram and plane graph, it is achieved Yi Zhongwu The standing wave fault point positioning method of line communication indoor distributed system and system.

The present invention provides the standing wave Fault Locating Method of a kind of radio communication indoor distributed system, comprises the following steps:

Step 501, the system diagram of input indoor distributed system and plane graph, enter step 502；

Step 502, inputs initial testing node, takes one as current initial testing node, entrance step 503；

Step 503, calculates each node to the feed line length of current initial testing node and link attenuation, enters step 504；

Step 504, at the fault location mode standing-wave of current initial testing node location test compartment system than data, Enter step 505；

Test gained standing-wave ratio data are compared by step 505 with threshold value Q1 preset, if there is the sampling more than Q1 Point, then enter step 507；

If there is not the sampled point more than Q1, enter step 506；

Step 506, it may be judged whether the test job of all initial testing nodes completes the most, if the most completing, then terminates This flow process；If no, then take off an initial testing node as current initial testing node from step 503, carry out respective compartments Subsystem fault location；

Step 507, records all standing-wave ratios and exceedes the feed line length L of sampled point and standing-wave ratio V of threshold value Q1, enter step Rapid 508；

Step 508, takes current sampling point one by one from each sampled point of step 507 record and mates with system diagram, enter Step 509；

Step 509, if the node that current sampling point mates with system diagram is unique, then enters step 510；If this sampled point with The node of system diagram coupling is not unique, then enter step 514；

Step 510, if unique node that current sampling point mates with system diagram is designated as a, calculates returning of institute's matched node a Ripple loss RL, calculates actual standing-wave ratio Vt of node, calculates standing wave threshold value Q2 of node, enter step 511；

Step 511, if current node a meets RL≤2PL or Vt ＞ Q2, then this node is trouble point, enters step 512；If being unsatisfactory for above-mentioned condition, then enter step 513；

Step 512, after the fault of process node a completes at the scene, enters step 513；

Step 513, it may be judged whether all standing-wave ratios exceed the sampled point of threshold value Q1 and have been processed, if all completing, weigh The standing-wave ratio data of the initial testing node that new test is current, reenter step 504；If the most all completing, then process the next one Standing-wave ratio exceedes the sampled point of threshold value Q1, as new current sampling point, enters step 508；

Step 514, it is judged that whether the interstitial content that current sampling point mates with system diagram is 2, if then entering step 515, otherwise enter step 518；

Step 515, if 2 nodes that current sampling point mates with system diagram are designated as a, b, if the maximum standing-wave ratio of node a The Va maximum standing-wave ratio Vb more than node b, enters step 516；

Step 516, if this sampled point test gained standing-wave ratio is V, if meeting Vb ＜ V ＜ Va, then synchronizes to enter step 517 And step 510, otherwise enter step 518；

Step 517, on-the-spot test node b, if trouble point then processes, after completing, enter step 513；

Step 518, according to multiple nodes of sampled point coupling, recalls, as untreated initial testing node, enters Enter step 503.

And, in step 510, calculate return loss RL of institute's matched node a, calculate actual standing-wave ratio Vt of node, meter During standing wave threshold value Q2 of operator node, it is achieved mode is as follows,

If a certain sampled point filtered out, its standing-wave ratio is V,

$RL=20{\log }_{10}\left(\frac{V+1}{V-1}\right)$

$Vt=\frac{{10}^{\frac{R-2PL}{20}}+1}{{10}^{\frac{RL-2PL}{20}}-1}$

$Q2=\frac{{10}^{\frac{PLM}{10}}+1}{{10}^{\frac{PLM}{10}}-1}$

Wherein, PL is the node that mates with sampled point to the link load of initial testing node, and PLM is that input port is to the most defeated Go out the maximum Insertion Loss of port.

And, in step 515, when calculating maximum standing-wave ratio Vb of maximum standing-wave ratio Va of node a and node b, it is achieved side Formula is as follows,

$Va=\frac{{10}^{\frac{PLa}{10}}+1}{{10}^{\frac{PLa}{10}}-1}$

$Vb=\frac{{10}^{\frac{PLb}{10}}+1}{{10}^{\frac{PLb}{10}}-1}$

Wherein, if the link loss value of node a is PLa, the link loss value of node b is PLb.

The present invention also provides for the standing wave fault location system of a kind of radio communication indoor distributed system, including with lower unit:

Unit 501, the system diagram of input indoor distributed system and plane graph, order unit 502 works；

Unit 502, inputs initial testing node, takes one as current initial testing node, order unit 503 work Make；

Unit 503, calculates each node to the feed line length of current initial testing node and link attenuation, order unit 504 work；

Unit 504, at the fault location mode standing-wave of current initial testing node location test compartment system than data, Order unit 505 works；

Test gained standing-wave ratio data are compared by unit 505 with threshold value Q1 preset, if there is the sampling more than Q1 Point, then order unit 507 works；

If there is not the sampled point more than Q1, order unit 506 works；

Unit 506, it may be judged whether the test job of all initial testing nodes completes the most, if the most completing, then terminates This flow process；If no, then take off an initial testing node as current initial testing node from unit 503, carry out respective compartments Subsystem fault location；

Unit 507, records all standing-wave ratios and exceedes the feed line length L of sampled point and standing-wave ratio V of threshold value Q1, and order is single Unit 508 work；

Unit 508, takes current sampling point one by one from each sampled point of unit 507 record and mates with system diagram, order Unit 509 works；

Unit 509, if the node that current sampling point mates with system diagram is unique, then order unit 510 works；If this sampling The node that point mates with system diagram is not unique, then order unit 514 works；

Unit 510, if unique node that current sampling point mates with system diagram is designated as a, calculates returning of institute's matched node a Ripple loss RL, calculates actual standing-wave ratio Vt of node, calculates standing wave threshold value Q2 of node, and order unit 511 works；

Unit 511, if current node a meets RL≤2PL or Vt ＞ Q2, then this node is trouble point, order unit 512 Work；If being unsatisfactory for above-mentioned condition, then order unit 513 works；

Unit 512, after the fault of process node a completes at the scene, order unit 513 works；

Unit 513, it may be judged whether all standing-wave ratios exceed the sampled point of threshold value Q1 and have been processed, if all completing, weigh The standing-wave ratio data of the initial testing node that new test is current, order unit 504 works again；If the most all completing, then under processing One standing-wave ratio exceedes the sampled point of threshold value Q1, and as new current sampling point, order unit 508 works；

Unit 514, it is judged that whether the interstitial content that current sampling point mates with system diagram is 2, if then order unit 515 Work, otherwise order unit 518 works；

Unit 515, if 2 nodes that current sampling point mates with system diagram are designated as a, b, if the maximum standing-wave ratio of node a The Va maximum standing-wave ratio Vb more than node b, order unit 516 works；

Unit 516, if this sampled point test gained standing-wave ratio is V, if meeting Vb ＜ V ＜ Va, then synch command unit 517 Work and unit 510 work, and otherwise order unit 518 works；

Unit 517, on-the-spot test node b, if trouble point then processes, complete post command unit 513 and work；

Unit 518, according to multiple nodes of sampled point coupling, recalls, as untreated initial testing node, life Unit 503 is made to work.

And, in unit 510, calculate return loss RL of institute's matched node a, calculate actual standing-wave ratio Vt of node, meter During standing wave threshold value Q2 of operator node, it is achieved mode is as follows,

If a certain sampled point filtered out, its standing-wave ratio is V,

$RL=20{\log }_{10}\left(\frac{V+1}{V-1}\right)$

$Vt=\frac{{10}^{\frac{R-2PL}{20}}+1}{{10}^{\frac{RL-2PL}{20}}-1}$

$Q2=\frac{{10}^{\frac{PLM}{10}}+1}{{10}^{\frac{PLM}{10}}-1}$

Wherein, PL is the node that mates with sampled point to the link load of initial testing node, and PLM is that input port is to the most defeated Go out the maximum Insertion Loss of port.

And, in unit 515, when calculating maximum standing-wave ratio Vb of maximum standing-wave ratio Va of node a and node b, it is achieved side Formula is as follows,

$Va=\frac{{10}^{\frac{PLa}{10}}+1}{{10}^{\frac{PLa}{10}}-1}$

$Vb=\frac{{10}^{\frac{PLb}{10}}+1}{{10}^{\frac{PLb}{10}}-1}$

Wherein, if the link loss value of node a is PLa, the link loss value of node b is PLb.

The present invention relates to standing wave Fault Locating Method and the system of a kind of radio communication indoor distributed system, divide for room and be In system malfunction elimination.It utilizes standing wave test data and compartment system schematic diagram and plane graph, automatically carries out breakdown judge and determines Position, it is possible to compensate path loss, direct accurate marker is out of order position a little and actual standing wave ratio or point out that next step is tested Node is position a little and actual standing wave ratio until accurate marker is out of order, and is shown on schematic diagram and plane graph, solves Compartment system malfunction elimination process of having determined is complicated, inefficiency, easily omits trouble point, the problem that rectification effect is undesirable.

Accompanying drawing explanation

Fig. 1 is the standing wave assignment test waveform diagram of the embodiment of the present invention；

Fig. 2 is that the indoor distributed system principal diagram of the embodiment of the present invention is intended to；

Fig. 3 is the indoor distributed system plane graph schematic diagram of the embodiment of the present invention；

Fig. 4 is the hardware adaptations schematic diagram of the embodiment of the present invention；

Fig. 5 is the room point fault location flow chart of the embodiment of the present invention；

Fig. 6 is the ultimate principle figure of the embodiment of the present invention.

Detailed description of the invention

Technical solution of the present invention is described in detail below in conjunction with drawings and Examples.

Seeing Fig. 6, the breakdown judge of the indoor distributed system that the embodiment of the present invention provides and precise positioning method, including entering The following operation of row:

First, schematic diagram and the plane graph of indoor distributed system are imported, inputs initial testing node, and with each antenna It is node with device, calculates each node to line length L of initial testing node and link attenuation PL.Generally determine initial survey During examination node, multisystem mixing is then the node after combiner, and single system is then machine top, base station；Feeder line attenuation adds device Insertion Loss i.e. For link load,

Then, the standing-wave ratio test result of input compartment system, when being embodied as, can be by engineering staff according to initial testing Node, carries out the standing-wave ratio test of compartment system the most at the scene, goes out suspicious according to test result Preliminary screening at this node Sampled point, the node data that combination principle figure parses, utilize line length to carry out mating of sampled point and node, if node Join unique, then compensate the link load of this node, calculate the standing-wave ratio of the approximation of this node, and contrast with threshold value, sentence Whether this node disconnected is trouble point.If the node utilizing length to mate is not unique, in the case of not can confirm that trouble point, indicate Go out suspected fault point and point out next test node, and repeating the above, until confirming trouble point.The event of all confirmations Barrier point makes sign in schematic diagram and plane graph, instructs engineering staff to carry out on-the-spot investigation.

Further, specific implementation is proposed as follows:

First, at first port of compartment system, the standing-wave ratio assignment test data of test whole system, for standing-wave ratio With the curve of feed line length change, each sampled point comprises two data: distance and standing-wave ratio, is designated as (L, V)；

Then, test data are screened, pick out the test gained standing-wave ratio V-value sampled point beyond threshold value Q1, knot Close the schematic diagram of compartment system, calibrate with select sampled point L-value error less than a range of node, if node mark Fixed unique, then according to the test point calculated to the link load PL of trouble point, link load is compensated again, calculates and mark The actual standing wave ratio Vt of this trouble point is shown, if Vt is beyond threshold value Q2, then it is assumed that this point is trouble point, system at schematic diagram and Indicating node location in plane graph, to instruct engineering staff scene to investigate, position fixing process completes；

Q1: ensure system entirety standing-wave ratio, be unlikely to cause system interference, for fixed value, this area skill when being embodied as Art personnel can preset value；

Q2: ensure the construction quality of each node, individually calculates value according to the device property of each node；

The computational methods of Q2: the maximum port Insertion Loss of node device input to output is RL, then advise valueStanding-wave ratio and the transformational relation of return loss:

Standing-wave ratio: VSWR

Return loss: RL

$RL=20{\log }_{10}\left(\frac{VSWR+1}{VSWR-1}\right)$

$VSWR=\frac{{10}^{\frac{RL}{20}}+1}{{10}^{\frac{RL}{20}}-1}$

If a certain sampled point filtered out, its feed line length and standing-wave ratio are designated as L, V respectively, the joint mated with sampled point Point, it is PL to the link load of test node, and the maximum Insertion Loss of input port to output port is PLM；

Using this sampled point as known suspected fault point, it is known that suspected fault point link load PL, standing-wave ratio test value V, Then:

Calculating suspected fault point return loss:

The standing-wave ratio of the node after compensation link loss, the actual standing wave ratio i.e. calculated

The standing-wave ratio threshold value of calculating node:

If R≤2PL or Vt ＞ Q2, then this suspected fault point confirms as actual fault point.

If node is demarcated not unique, then according to system diagram, first calculate the maximum standing-wave ratio of these nodes.Assume A node Link loss value be PLa, the link loss value of B node is PLb, and PLa ＜ PLb, then corresponding for node A, B maximum standing-wave ratio Value is respectively

If Vb is ＜ V ＜ Va, then calculates the actual standing wave ratio of A point, and contrast with the Q2 thresholding of A point, judge；B Node needs engineering staff to go to test to judge；

If V is ＞ Va, then two nodes of A, B are both needed to go to node on-the-spot test；

If V is ＜ Vb, then can not failure judgement point be A or B；Now, its first common node is dateed back from A, B node C, and in the position of system diagram Yu plane graph middle finger egress C, the prompting that Field Force is given according to system, at the two of C node Carry out standing wave test on individual branch road the most respectively and carry out calculating and judge, to confirm that trouble point is as A or B.

When node demarcates number more than 2, the situation according to sampled point standing wave ratio V failure judgement point is more complicated, then Directly recall branch node, test each branch road standing wave respectively and calculate judgement, simplify process.

As a example by certain indoor distributed system, concrete employing the provided technical scheme of embodiment to trouble spot judging and positions such as Under:

Schematic diagram and the plane graph of indoor distributed system are imported,

As shown in Figure 2 and Figure 3, including following three kinds of signs:

Feeder line indicates: such as 0.7dB/10m, represents feed line length 10m, and the loss under special frequency channel is 0.7dB.

Device indicates: two road power splitters are designated as PS1, PS2, PS3；The degree of coupling of bonder T1, T2, T3, T4, T5 is respectively 12dB、6dB、10dB、6dB、6dB。

Antenna indicates: domestic aerial is designated as ANT1, ANT2 ... ANT9.

Initial testing node is the circle in left side in Fig. 2 schematic diagram；With each passive device and antenna as node, calculate every Individual node is to the distance of initial testing node and link load；Engineering staff tests according to the node of prompting at the scene, To the data of standing-wave ratio assignment test, as shown in curve 101 in Fig. 1.

Sign in FIG is as follows:

VSWR: voltage standing wave ratio, without unit.

Distance: distance, represents the transmission of wireless signals distance of surveyed standing-wave ratio test value and test node, and unit is Rice.

Standing wave threshold value: detected value set in advance, standing-wave ratio exceedes the point of this value then to be needed to carry out next step analysis.

By sampling number according to contrasting with 102 standing wave threshold values Q1 in standing-wave ratio Fig. 1, filter out off-limits sampling Point, such as in Fig. 1 103 and 104, for suspected fault point.

The data of suspected fault point 103 sampling are L=45m, and standing-wave ratio is V=1.08, is mated by L-value, corresponding 201 nodes in Fig. 2 systematic schematic diagram:

The return loss of calculating node 201:

Can calculate node 201 link load PL=14dB by systematic schematic diagram, R is more than 2PL, then:

Calculate the actual standing wave ratio of 201

The device maximum port Insertion Loss of node 201 is 6dB, then thresholding

Then node 201 meets R≤2PL or the condition of Vt ＞ Q2, can determine that node 201 is for trouble point.

The data of suspected fault point 104 sampling are L=60m, and standing wave is V=1.07, is mated by L-value, can be corresponding 202 and 203 nodes in Fig. 2 systematic schematic diagram.

Node 202 link load PL202=6dB, the then testable maximum of node 202 can be calculated by systematic schematic diagram Standing-wave ratio is

Can calculate node 203 link load PL203=21.2dB by systematic schematic diagram, then node 203 is testable Maximum standing-wave ratio is

According to Rule of judgment:

If Vb ＜ V ＜ Va, then the preferential on-the-spot investigation node A of suggestion；

If V is ＞ Va, then all there is fault in two nodes of A, B；

If V is ＜ Vb, then can not failure judgement point be A or B；

Because meeting V203 ＜ V ＜ V202, then should preferentially investigate the fault of node 202:

The return loss of calculating node 202:

Calculate the actual standing wave ratio of 202

The device maximum port Insertion Loss of node 202 is 6dB, then thresholding

Vt is less than Q2, then judge that 202 is not trouble point；

Whether is trouble point regardless of 202,203 are both needed to engineering staff to node test.

Technical solution of the present invention can use software engineering to realize automatic operational process.For the sake of ease of implementation, it is provided that Embodiment implement flow process.Seeing Fig. 5, embodiment utilizes system to carry out room to divide the flow process of breakdown judge as follows:

Step 501, the system diagram (i.e. the abbreviation of systematic schematic diagram) of input indoor distributed system and plane graph, enter step 502；

Step 502, the initial testing node in input system figure, owing to there may be multiple conjunction waypoint in compartment system, When initial testing node is unique, can take one untreated as current initial testing node, enter step 503；

Step 503, calculates each node to the feed line length of current initial testing node and link attenuation, enters step 504；

Step 504, at the fault location mode standing-wave of current initial testing node location test compartment system than data, Enter step 505；

Test gained standing-wave ratio data are compared by step 505 with threshold value Q1, if there is the sampled point more than Q1, then Enter step 507；

If there is not the sampled point more than Q1, then the judged result of this initial testing node is fault-free, enters step 506；

Step 506, it may be judged whether the test job of all initial testing nodes completes the most, if the most completing, then terminates This flow process；If no, then take from step 503 next untreated as current initial testing node, start again at next Initial testing node respective compartments subsystem fault location；

Step 507, records all standing-wave ratios and exceedes the feed line length L of sampled point and standing-wave ratio V of threshold value Q1, enter step Rapid 508；

Step 508, takes current sampling point one by one from each sampled point of step 507 record and mates with system diagram, enter Enter step 509；

Step 509, if the node that current sampling point mates with system diagram is unique, then enters step 510；If this sampled point with The node of system diagram coupling is not unique, then enter step 514；

Step 510, if unique node that current sampling point mates with system diagram is designated as a, calculates returning of institute's matched node a Ripple loss RL, calculates actual standing-wave ratio Vt of node, calculates standing wave threshold value Q2 of node, enter step 511；

Step 511, if this node a meets RL≤2PL or Vt ＞ Q2, then this node is trouble point, enters step 512；If It is unsatisfactory for above-mentioned condition, then enters step 513；

Step 512, processes after the fault of this node a completes at the scene, enters step 513；

Step 513, it may be judged whether all standing-wave ratios exceed the sampled point of threshold value Q1 and have been processed, if all completing, weigh The standing-wave ratio data of the initial testing node that new test is current, reenter step 504；If the most all completing, then process next Individual standing-wave ratio exceedes the sampled point of threshold value Q1, as new current sampling point, enters step 508；

Step 514, it is judged that whether the interstitial content that current sampling point mates with system diagram is 2, if 2, then enter step 515；If more than 2, then enter step 518；

Step 515, if 2 nodes that current sampling point mates with system diagram are designated as a, b, the maximum calculating two nodes is stayed Bob Va, Vb, describe for ease of subsequent step, it is assumed herein that Va is more than Vb, enters step 516；

This step realizes can be found in above, and calculation is as follows,

$Va=\frac{{10}^{\frac{PLa}{10}}+1}{{10}^{\frac{PLa}{10}}-1}$

$Vb=\frac{{10}^{\frac{PLb}{10}}+1}{{10}^{\frac{PLb}{10}}-1}$

Wherein, if the link loss value of node a is PLa, the link loss value of node b is PLb；

Step 516, this sampled point standing wave test data be V, if meeting Vb ＜ V ＜ Va, then synchronize enter step 517 and Step 510, wherein step 510 calculates return loss RL of node a, calculates actual standing-wave ratio Vt of node a, calculates node a's Standing wave threshold Q2, step 513 place judges after waiting step 517 and step 510 respective handling all being completed again；If no Meet Vb ＜ V ＜ Va, then enter step 518；

Step 517, on-the-spot test node b, if trouble point then processes, enter step 513 after completing, be otherwise directly entered Step 513；

Step 518, according to multiple nodes of sampled point coupling, recalls, as untreated initial testing node, enters Enter step 503, it is achieved each node is confirmed one by one.

For example, it is assumed that tri-points of a/b/c to start node apart from equal, it is impossible to judge which node is problematic, now exist Reversely find first common node (or 2, be determined on a case-by-case basis) of tri-points of a/b/c on system diagram, again distinguish The standing-wave ratio of test different branch, positions fault.

When being embodied as, method provided by the present invention can realize automatic operational process based on software engineering, it is possible to uses single Unitization mode realizes corresponding system.

The present invention also provides for the standing wave fault location system of a kind of radio communication indoor distributed system, including with lower unit:

Unit 501, the system diagram of input indoor distributed system and plane graph, order unit 502 works；

Unit 502, inputs initial testing node, takes one as current initial testing node, order unit 503 work Make；

Unit 503, calculates each node to the feed line length of current initial testing node and link attenuation, order unit 504 work；

Unit 504, at the fault location mode standing-wave of current initial testing node location test compartment system than data, Order unit 505 works；

Test gained standing-wave ratio data are compared by unit 505 with threshold value Q1 preset, if there is the sampling more than Q1 Point, then order unit 507 works；

If there is not the sampled point more than Q1, order unit 506 works；

Unit 506, it may be judged whether the test job of all initial testing nodes completes the most, if the most completing, then terminates This flow process；If no, then take off an initial testing node as current initial testing node from unit 503, carry out respective compartments Subsystem fault location；

Unit 507, records all standing-wave ratios and exceedes the feed line length L of sampled point and standing-wave ratio V of threshold value Q1, and order is single Unit 508 work；

Unit 508, takes current sampling point one by one from each sampled point of unit 507 record and mates with system diagram, order Unit 509 works；

Unit 509, if the node that current sampling point mates with system diagram is unique, then order unit 510 works；If this sampling The node that point mates with system diagram is not unique, then order unit 514 works；

Unit 510, if unique node that current sampling point mates with system diagram is designated as a, calculates returning of institute's matched node a Ripple loss RL, calculates actual standing-wave ratio Vt of node, calculates standing wave threshold value Q2 of node, and order unit 511 works；

Unit 511, if current node a meets RL≤2PL or Vt ＞ Q2, then this node is trouble point, order unit 512 Work；If being unsatisfactory for above-mentioned condition, then order unit 513 works；

Unit 512, after the fault of process node a completes at the scene, order unit 513 works；

Unit 513, it may be judged whether all standing-wave ratios exceed the sampled point of threshold value Q1 and have been processed, if all completing, weigh The standing-wave ratio data of the initial testing node that new test is current, order unit 504 works again；If the most all completing, then under processing One standing-wave ratio exceedes the sampled point of threshold value Q1, and as new current sampling point, order unit 508 works；

Unit 514, it is judged that whether the interstitial content that current sampling point mates with system diagram is 2, if then order unit 515 Work, otherwise order unit 518 works；

Unit 515, if 2 nodes that current sampling point mates with system diagram are designated as a, b, if the maximum standing-wave ratio of node a The Va maximum standing-wave ratio Vb more than node b, order unit 516 works；

Unit 516, if this sampled point test gained standing-wave ratio is V, if meeting Vb ＜ V ＜ Va, then synch command unit 517 Work and unit 510 work, and otherwise order unit 518 works；

Unit 517, on-the-spot test node b, if trouble point then processes, complete post command unit 513 and work；

Unit 518, according to multiple nodes of sampled point coupling, recalls, as untreated initial testing node, life Unit 503 is made to work.

Each unit implements and can be found in corresponding steps, and it will not go into details for the present invention.

When being embodied as, it is possible to be divided by function module, it is provided that related device.For the sake of implementing reference, it is provided that Device to realize proposed projects as follows:

Standing wave test module: realize the standing-wave ratio test of the fault location pattern of compartment system, gather and preserve test number According to；

Scheme parsing module: for the parsing of the scheme to indoor distributed system, sets initial testing node, calculates each joint Put the feed line length to initial testing node and link load, system diagram is carried out corresponding with plane graph；

Fault location module: standing-wave ratio is tested data and mates with system diagram, screens suspected fault point, will test number According to according to system diagram, suspect node is reduced, and calculate judgement thresholding, confirm the particular location of trouble point；In test sample When the interstitial content of some correspondence is more, provide next step test node position；Automatic decision also provides next step process step And suggestion.

Each module implements consistent with method, and it will not go into details for the present invention.

See Fig. 4, be integrated with standing wave test module, scheme parsing module, the test of fault location module and fault location Device, also can arrange related peripherals:

Touch display screen and human-computer interaction interface is provided, it is provided that function selecting, confirmation, I/O Interface, in order to show behaviour Point out, measurement result, power information, warning information etc..

Radio frequency interface is mainly used in the calibration of standing wave test module, the access test of compartment system.

USB interface provides copy and the transfer function of data, for system diagram and the importing of plane graph, analysis result and report The derivation etc. accused.

Operation key zone mainly provide function key, directionkeys, numeral keys, acknowledgement key, power switch key, screen on-off key, Reset key etc., it is achieved the human-computer interaction functions such as function selecting, numeral input.

Specific embodiment described herein is only to present invention spirit explanation for example.Technology neck belonging to the present invention Described specific embodiment can be made various amendment or supplements or use similar mode to replace by the technical staff in territory Generation, but without departing from the spirit of the present invention or surmount scope defined in appended claims.

Claims (6)

1. the standing wave Fault Locating Method of a radio communication indoor distributed system, it is characterised in that comprise the following steps:

Step 501, the system diagram of input indoor distributed system and plane graph, enter step 502；

Step 502, inputs initial testing node, takes one as current initial testing node, entrance step 503；

Step 503, calculates each node to the feed line length of current initial testing node and link attenuation, enters step 504；

Step 504, tests the fault location mode standing-wave of compartment system than data, entrance at current initial testing node location Step 505；

Test gained standing-wave ratio data are compared by step 505 with threshold value Q1 preset, if there is the sampled point more than Q1, Then enter step 507；

If there is not the sampled point more than Q1, enter step 506；

Step 506, it may be judged whether the test job of all initial testing nodes completes the most, if the most completing, then terminates this stream Journey；

If no, then take off an initial testing node as current initial testing node from step 503, carry out respective compartments and divide be System fault location；

Step 507, records all standing-wave ratios and exceedes the feed line length L of sampled point and standing-wave ratio V of threshold value Q1, enter step 508；

Step 508, takes current sampling point one by one from each sampled point of step 507 record and mates with system diagram, enter step 509；

Step 509, if the node that current sampling point mates with system diagram is unique, then enters step 510；If this sampled point and system The node of figure coupling is not unique, then enter step 514；

Step 510, if unique node that current sampling point mates with system diagram is designated as a, the echo calculating institute's matched node a damages Consumption RL, calculates actual standing-wave ratio Vt of node, calculates standing wave threshold value Q2 of node, enters step 511；

Step 511, if current node a meets RL≤2PL or Vt ＞ Q2, then this node is trouble point, enters step 512；If It is unsatisfactory for above-mentioned condition, then enters step 513；

Step 512, after the fault of process node a completes at the scene, enters step 513；

Step 513, it may be judged whether all standing-wave ratios exceed the sampled point of threshold value Q1 and have been processed, if all completing, again survey Try the standing-wave ratio data of current initial testing node, reenter step 504；If the most all completing, then process next standing wave Ratio exceedes the sampled point of threshold value Q1, as new current sampling point, enters step 508；

Step 514, it is judged that whether the interstitial content that current sampling point mates with system diagram is 2, if then entering step 515, no Then enter step 518；

Step 515, if 2 nodes that current sampling point mates with system diagram are designated as a, b, if maximum standing-wave ratio Va of node a is big In maximum standing-wave ratio Vb of node b, enter step 516；

Step 516, if this sampled point test gained standing-wave ratio is V, if meeting Vb ＜ V ＜ Va, then synchronizes to enter step 517 and step Rapid 510, otherwise enter step 518；

Step 517, on-the-spot test node b, if trouble point then processes, after completing, enter step 513；

Step 518, according to multiple nodes of sampled point coupling, recalls, and as untreated initial testing node, enters step Rapid 503.

The standing wave Fault Locating Method of radio communication indoor distributed system the most according to claim 1, it is characterised in that: step In 510, calculate return loss RL of institute's matched node a, calculate actual standing-wave ratio Vt of node, calculate standing wave threshold value Q2 of node Time, it is achieved mode is as follows,

If a certain sampled point filtered out, its standing-wave ratio is V,

$RL=20{\log }_{10}\left(\frac{V+1}{V-1}\right)$

$Vt=\frac{{10}^{\frac{R-2PL}{20}}+1}{{10}^{\frac{RL-2PL}{20}}-1}$

$Q2=\frac{{10}^{\frac{PLM}{10}}+1}{{10}^{\frac{PLM}{10}}-1}$

Wherein, PL is the node that mates with sampled point to the link load of initial testing node, and PLM is that input port is to outfan The maximum Insertion Loss of mouth.

The standing wave Fault Locating Method of radio communication indoor distributed system the most according to claim 1 or claim 2, it is characterised in that: In step 515, when calculating maximum standing-wave ratio Vb of maximum standing-wave ratio Va of node a and node b, it is achieved mode is as follows,

$Va=\frac{{10}^{\frac{PLa}{10}}+1}{{10}^{\frac{PLa}{10}}-1}$

$Vb=\frac{{10}^{\frac{PLb}{10}}+1}{{10}^{\frac{PLb}{10}}-1}$

Wherein, if the link loss value of node a is PLa, the link loss value of node b is PLb.

4. the standing wave fault location system of a radio communication indoor distributed system, it is characterised in that include with lower unit:

Unit 501, the system diagram of input indoor distributed system and plane graph, order unit 502 works；

Unit 502, inputs initial testing node, takes one and work as current initial testing node, order unit 503；

Unit 503, calculates each node to the feed line length of current initial testing node and link attenuation, order unit 504 Work；

Unit 504, tests the fault location mode standing-wave of compartment system than data, order at current initial testing node location Unit 505 works；

Test gained standing-wave ratio data are compared by unit 505 with threshold value Q1 preset, if there is the sampled point more than Q1, Then order unit 507 works；

If there is not the sampled point more than Q1, order unit 506 works；

Unit 506, it may be judged whether the test job of all initial testing nodes completes the most, if the most completing, then terminates this stream Journey；

If no, then take off an initial testing node as current initial testing node from unit 503, carry out respective compartments and divide be System fault location；

Unit 507, records all standing-wave ratios and exceedes the feed line length L of sampled point and standing-wave ratio V, the order unit of threshold value Q1 508 work；

Unit 508, takes current sampling point one by one from each sampled point of unit 507 record and mates with system diagram, order unit 509 work；

Unit 509, if the node that current sampling point mates with system diagram is unique, then order unit 510 works；If this sampled point with The node of system diagram coupling is not unique, then order unit 514 works；

Unit 510, if unique node that current sampling point mates with system diagram is designated as a, the echo calculating institute's matched node a damages Consumption RL, calculates actual standing-wave ratio Vt of node, calculates standing wave threshold value Q2 of node, and order unit 511 works；

Unit 511, if current node a meets RL≤2PL or Vt ＞ Q2, then this node is trouble point, order unit 512 work Make；

If being unsatisfactory for above-mentioned condition, then order unit 513 works；

Unit 512, after the fault of process node a completes at the scene, order unit 513 works；

Unit 513, it may be judged whether all standing-wave ratios exceed the sampled point of threshold value Q1 and have been processed, if all completing, again survey Trying the standing-wave ratio data of current initial testing node, order unit 504 works again；If the most all completing, then process the next one Standing-wave ratio exceedes the sampled point of threshold value Q1, and as new current sampling point, order unit 508 works；

Unit 514, it is judged that whether the interstitial content that current sampling point mates with system diagram is 2, if then order unit 515 work Making, otherwise order unit 518 works；

Unit 515, if 2 nodes that current sampling point mates with system diagram are designated as a, b, if maximum standing-wave ratio Va of node a is big In maximum standing-wave ratio Vb of node b, order unit 516 works；

Unit 516, if this sampled point test gained standing-wave ratio is V, if meeting Vb ＜ V ＜ Va, then synch command unit 517 works And unit 510 works, otherwise order unit 518 works；

Unit 517, on-the-spot test node b, if trouble point then processes, complete post command unit 513 and work；

Unit 518, according to multiple nodes of sampled point coupling, recalls, and as untreated initial testing node, order is single Unit 503 work.

The standing wave fault location system of radio communication indoor distributed system the most according to claim 4, it is characterised in that: unit In 510, calculate return loss RL of institute's matched node a, calculate actual standing-wave ratio Vt of node, calculate standing wave threshold value Q2 of node Time, it is achieved mode is as follows,

If a certain sampled point filtered out, its standing-wave ratio is V,

$RL=20{\log }_{10}\left(\frac{V+1}{V-1}\right)$

$Vt=\frac{{10}^{\frac{R-2PL}{20}}+1}{{10}^{\frac{RL-2PL}{20}}-1}$

$Q2=\frac{{10}^{\frac{PLM}{10}}+1}{{10}^{\frac{PLM}{10}}-1}$

Wherein, PL is the node that mates with sampled point to the link load of initial testing node, and PLM is that input port is to outfan The maximum Insertion Loss of mouth.

6. according to the standing wave fault location system of radio communication indoor distributed system described in claim 4 or 5, it is characterised in that: In unit 515, when calculating maximum standing-wave ratio Vb of maximum standing-wave ratio Va of node a and node b, it is achieved mode is as follows,

$Va=\frac{{10}^{\frac{PLa}{10}}+1}{{10}^{\frac{PLa}{10}}-1}$

$Vb=\frac{{10}^{\frac{PLb}{10}}+1}{{10}^{\frac{PLb}{10}}-1}$

Wherein, if the link loss value of node a is PLa, the link loss value of node b is PLb.