CN103702356A - TDD (time division duplexing) system-based fault diagnosis device - Google Patents
TDD (time division duplexing) system-based fault diagnosis device Download PDFInfo
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- CN103702356A CN103702356A CN201310752940.1A CN201310752940A CN103702356A CN 103702356 A CN103702356 A CN 103702356A CN 201310752940 A CN201310752940 A CN 201310752940A CN 103702356 A CN103702356 A CN 103702356A
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- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention provides a TDD (time division duplexing) system-based fault diagnosis device. The TDD system-based fault diagnosis device comprises a transceiver plate, a power amplifier plate and a radio frequency connector connected between the transceiver plate and the power amplifier plate; the TDD system-based fault diagnosis device is characterized in that the transceiver plate comprises a digital processing and main control module, a main board signal sending link module, a main board signal receiving link module and a radio frequency switch, wherein the radio frequency switch is used for opening and closing an sending channel and a receiving channel of the transceiver plate according to a control signal from the digital processing and main control module; the digital processing and main control module is used for monitoring the signal power of the receiving channel under the condition that RRU (radio remote unit) equipment has a fault and judging whether the difference value between an estimated value of full link signal power and a signal power monitoring value of the receiving channel exceeds a threshold value or not. The TDD system-based fault diagnosis device facilitates the remote or unpacking positioning or fault removing of an equipment fault, and the area, power consumption and cost occupied by a detection link can be saved.
Description
Technical field
The application relates to communication technical field, particularly relates to a kind of trouble-shooter based on TDD system.
Background technology
At present, along with TDD (time division duplex, Time Division Duplexing) popularization of system, bandwidth of base station increases day by day, the power grade of base station equipment power amplifier improves day by day, thereby to the reliability of base station equipment, stability, high-performance with the performance such as can safeguard, have higher requirement and challenge.
Consider the performance of the aspects such as heat radiation, key index, band characteristic, existing RRU(remote radio unit (RRU), Radio Remote Unit) a kind of main flow framework of equipment is that transceiver is separated from intermediate lateral, it is integrated into power board by radio-frequency power amplifier and low noise amplifier conventionally, the other parts (such as modulation /demodulation, digital intermediate frequency etc.) of itself and transceiver are thoroughly peeled away, and adopted radio frequency connector to realize interconnecting of power board and two boards of transceiver plate.Yet, in this framework one relatively distinct issues are reliabilities (self reliability, installation reliability etc.) of radio frequency connector, this problem will badly influence the systematic function of RRU equipment.
Consideration based on cost and complexity aspect, the method for existing a kind of reliability of diagnosing radio frequency connector is the in the situation that of RRU unit exception, and the monitoring of using power board realizes the diagnosis of full link.Yet the method exists the problems such as granularity is poor, module failure recognition capability is low, for the judgement of field failure, and the location that produces or reprocess, disassemble, all can cause the reduction of diagnosis efficiency.Especially, once integrity problem has appearred in radio frequency connector, may be difficult to verification (plate of often devaning, it is normal that radio frequency connector may recover again), cause repeated disassembled and assembled, the loss such as reprocess back and forth.
The problems such as above-mentioned granularity is poor in order to overcome, module failure recognition capability is low, the method of the reliability of existing another kind of diagnosis radio frequency connector is with reference to the common power amplifier coupling monitoring method of complete machine, the power amplifier monitoring modular simple copy that is coupled is increased to transceiver plate, there are problems in the method, for example transmit too small, for monitoring difficulty, strengthen; Increase monitoring link and design, cause the rising of cost and circuit area, be unfavorable for reducing costs and facility compact; Increase circuit, cause power consumption to rise etc.
Summary of the invention
The application's technical problem to be solved is to provide a kind of trouble-shooter based on TDD system, can be convenient to the long-range of equipment fault or do not unpack location or troubleshooting, and can save and detect shared area, power consumption, the cost of link.
In order to address the above problem, the application discloses a kind of trouble-shooter based on TDD system, comprise transceiver plate, power board and be connected to the radio frequency connector between described transceiver plate and power board, it is characterized in that, described transceiver plate comprises: digital processing and main control module, mainboard signalling link module, mainboard collection of letters link module and radio-frequency (RF) switch;
Wherein, described radio-frequency (RF) switch is connected with radio frequency connector with main control module, mainboard signalling link module, mainboard collection of letters link module with described digital processing respectively, for according to from the control signal of described digital processing and main control module, transmission channel and the receive path of transceiver plate described in switch;
Described digital processing and main control module, comprising:
The first control unit, in the situation that remote radio unit (RRU) RRU equipment breaks down, sends the control signal of simultaneously opening transmission channel and receive path to described radio-frequency (RF) switch;
The first diagnosis unit, for in the situation that RRU equipment breaks down, the signal power of monitoring receive path, and whether the difference that judges the estimated value of full link signal power and the signal power monitor value of receive path surpasses threshold value, if, the loop of judging described transceiver plate breaks down, otherwise judges the loop fault-free of described transceiver plate; Wherein, described threshold value is for weighing the power loss that described receive path device brings; And
Second opinion unit, for the loop fault situation of the failure condition according to the full link of RRU equipment and described transceiver plate, locates corresponding board fault point.
Preferably, described second opinion unit, comprising:
The first locator unit, in the situation that the full link of RRU equipment occurs that the loop of launching failure and described transceiver plate breaks down, is the fault of sending out of transceiver plate by fault location;
The second locator unit, for occurring at the full link of RRU equipment in the trouble-free situation of loop of launching failure and described transceiver plate, a fault that is power board by fault location;
The 3rd locator unit, in the situation that the full link of RRU equipment occurs that the loop that receives fault and described transceiver plate breaks down, is the reception fault of transceiver plate by fault location;
The 4th locator unit, for occurring receiving in the trouble-free situation of loop of fault and described transceiver plate at the full link of RRU equipment, the reception fault that is power board by fault location.
Preferably, described digital processing and main control module, also comprise:
The second control unit, in the trouble-free situation of remote radio unit (RRU) RRU equipment, according to the up-downgoing agreement time of TDD, sends to described radio-frequency (RF) switch the control signal that timesharing is switched.
Compared with prior art, the application has the following advantages:
Existing framework in the application's the multiplexing RRU equipment of trouble-shooter, utilizes the isolation characteristic of radio-frequency (RF) switch, by the signal of transmission channel feed-in receive path after radio-frequency (RF) switch isolation decay, forms signal coupling Acquisition channel, obtains and transmits; In such cases, because transmission channel and the receive path of TDD system is operated under same frequency, therefore can monitor the signal power of transmission channel by receive path, realize the detection and diagnosis to link failure; This device tool has the following advantages:
The first, can effectively complete the autodiagnosis of transceiver plate, be convenient to the long-range of equipment fault or do not unpack location or troubleshooting;
Second, can utilize abnormal eliminating means, loop fault situation according to failure condition and the described transceiver plate of the full link of RRU equipment, locate corresponding board fault point, also, localization of fault can be arrived to the granularity of board, can judge very easily the position of fault board, further dwindle the position of fault point, the identification that raising problem solves;
The 3rd, the multiplexing as far as possible original passage of transceiver plate, smaller for the change impact of soft firmware;
The 4th, with respect to prior art, the power amplifier monitoring modular simple copy that is coupled is increased to transceiver plate, only use radio-frequency (RF) switch as signal coupling feed-in passage, avoided increasing monitoring link and design, therefore can save, detected the shared area of link, power consumption, cost etc.
Accompanying drawing explanation
Fig. 1 is the structure chart of a kind of trouble-shooter embodiment based on TDD system of the application;
Fig. 2 is the fault point example of a kind of RRU equipment of the application;
Fig. 3 is the structural representation of a kind of transceiver plate of the application.
Embodiment
For the application's above-mentioned purpose, feature and advantage can be become apparent more, below in conjunction with the drawings and specific embodiments, the application is described in further detail.
With reference to Fig. 1, show the structure chart of a kind of trouble-shooter embodiment based on TDD system of the application, specifically can comprise transceiver plate 101, power board 102 and be connected to the radio frequency connector 103 between described transceiver plate 101 and power board 102;
Wherein, described transceiver plate 101 specifically can comprise: digital processing and main control module 111, mainboard signalling link module 112, mainboard collection of letters link module 113 and radio-frequency (RF) switch 114;
Wherein, described radio-frequency (RF) switch 114 is connected with radio frequency connector 103 with main control module 111, mainboard signalling link module 112, mainboard collection of letters link module 113 with described digital processing respectively, for according to from the control signal of described digital processing and main control module 111, transmission channel and the receive path of transceiver plate described in switch;
Described digital processing and main control module 111, specifically can comprise:
The first control unit 1111, in the situation that remote radio unit (RRU) RRU equipment breaks down, sends the control signal of simultaneously opening transmission channel and receive path to described radio-frequency (RF) switch;
The first diagnosis unit 1112, for in the situation that RRU equipment breaks down, the signal power of monitoring receive path, and whether the difference that judges the estimated value of full link signal power and the signal power monitor value of receive path surpasses threshold value, if, the loop of judging described transceiver plate breaks down, otherwise judges the loop fault-free of described transceiver plate; Wherein, described threshold value can be used for weighing the power loss that in described receive path, device brings; And
Second opinion unit 1113, for the loop fault situation of the failure condition according to the full link of RRU equipment and described transceiver plate, locates corresponding board fault point.
The embodiment of the present application proposes a kind of trouble-shooter based on TDD system, this installs existing framework in multiplexing RRU equipment, creatively utilize the isolation characteristic of radio-frequency (RF) switch, by the signal of transmission channel feed-in receive path after radio-frequency (RF) switch isolation decay, form signal coupling Acquisition channel, obtain and transmit; In such cases, because transmission channel and the receive path of TDD system is operated under same frequency, therefore can monitor the signal power of transmission channel by receive path, realize the detection and diagnosis to link failure.
In specific implementation, in the situation that RRU equipment breaks down, can open transmission channel and the receive path of transceiver plate 101 simultaneously, carry out loopback diagnosis, to realize fast the diagnosis of full link.In such cases, the receive path of transceiver plate 101 both obtained signal by radio-frequency (RF) switch 114 couplings, received again the signal of power board 102 by radio-frequency (RF) switch 114.And if the difference of the full estimated value of link signal power and the signal power monitor value of receive path surpasses threshold value, can judge that the loop of described transceiver plate breaks down; Wherein, the estimated value of described full link signal power can be used for representing full link signal power in the ideal situation, it typically is power that transmission channel transmits and power board from the power of antenna received signal and, the loop of described transceiver plate specifically can comprise: the loop of mainboard signalling link module 112, radio-frequency (RF) switch 114 and 113 formation of mainboard collections of letters link module.
In the embodiment of the present application, described threshold value can be used for weighing the power loss that in described receive path, device brings.In a preferred embodiment of the present invention, can determine described threshold value according to the insertion loss characteristic of device in described receive path.Wherein, insertion loss can be used for representing between transmitter and receiver, insert the loss of signal that cable or element produce,, it represents with the corresponding decibel (dB) of received signal level conventionally, for example, the isolation of radio-frequency (RF) switch is exactly a kind of insertion loss, and for example in receive path, the device such as frequency mixer, filter all has corresponding insertion loss, in practice, can in described threshold value, consider receive path in the insertion loss of each device.
From typical device property index, the signal power that obtains the 112 emission ports outputs of mainboard signalling link module can be analyzed and 0dBm left and right can be controlled at, the isolation of supposing radio-frequency (RF) switch is 40dB, be about-40dBm of the signal power that is fed into so receive path, according to general receive path ability, this signal can facilitate receive path to detect completely, does not produce and the other problem such as overflows.
The threshold value of described setting can be determined according to device property in described receive path by those skilled in the art, specifically can determine corresponding threshold value for each device nodes in receive path.The interface of radio-frequency (RF) switch and mainboard collection of letters link module 113 of take is example, if the isolation 40dB that simultaneously considers radio-frequency (RF) switch for and ± error of 1dBm, so, corresponding threshold value can be 39dBm～41dBm.Certainly, just as example, the embodiment of the present application is not limited concrete threshold value here.In like manner, can also determine corresponding threshold value for other device nodes in mainboard collection of letters link module 113, because principle is similar, and therefore not to repeat here.
In practice, general RRU equipment can both be by calibration, transmitting or receiver are carried out to the mensuration of full link, so that the function of smart antenna, the power control of eating dishes without rice or wine realizes, also be, prior art can detect the failure condition of the full link of RRU equipment, specifically can comprise the situation of the full link launching failure of RRU equipment and reception fault.Yet prior art, can not be by localization of fault to concrete board in the situation that the full link of RRU equipment occurs launching failure or receives fault.
And the embodiment of the present application can be utilized abnormal eliminating means, loop fault situation according to failure condition and the described transceiver plate of the full link of RRU equipment, locate corresponding board fault point, also be, localization of fault can be arrived to the granularity of board, can judge very easily the position of fault board, further dwindle the position of fault point, the identification that raising problem solves.
Corresponding with described abnormal eliminating means, in a preferred embodiment of the present application, described second opinion unit 1113, specifically can comprise:
The first locator unit, in the situation that the full link of RRU equipment occurs that the loop of launching failure and described transceiver plate breaks down, is the fault of sending out of transceiver plate by fault location;
The second locator unit, for occurring at the full link of RRU equipment in the trouble-free situation of loop of launching failure and described transceiver plate, a fault that is power board by fault location;
The 3rd locator unit, in the situation that the full link of RRU equipment occurs that the loop that receives fault and described transceiver plate breaks down, is the reception fault of transceiver plate by fault location;
The 4th locator unit, for occurring receiving in the trouble-free situation of loop of fault and described transceiver plate at the full link of RRU equipment, the reception fault that is power board by fault location.
With reference to table 1, show above-mentioned first locator unit-tetra-failure conditions corresponding to locator unit.
Table 1
With reference to Fig. 2, show the fault point example of a kind of RRU equipment of the application, this RRU equipment is comprised of transceiver plate and two boards of power board, and each board includes transmitting chain and receiver, and by radio-frequency (RF) switch and radio frequency connector, completes connection between two boards.Suppose that TDD system exists fault point (indicating with X in figure) at the receiver of two boards, prior art only can arrive fault location the granularity of full link, but can not be by localization of fault to concrete board.And according to the application's diagnosis scheme, when transmission channel is normally worked, receive path can utilize self isolation of radio-frequency (RF) switch, the detection also simultaneously transmitting can form a loop in transceiver board; Like this, can be too low or normal by the signal power monitor value of judgement receive path, the position that sieve does not go out concrete fault point is at transceiver plate or at power board, therefore can effectively promote the autodiagnosis ability of RRU equipment.In addition, the position of fault point can also be navigated to the device nodes in receive path, particularly, if the signal power monitor value of the previous device nodes in receive path is normal, and the signal power monitor value of current device nodes is too low, the position of fault point can be navigated to the current device nodes in receive path.
In a preferred embodiment of the present application, described digital processing and main control module 111, can also comprise:
The second control unit, in the trouble-free situation of remote radio unit (RRU) RRU equipment, according to the up-downgoing agreement time of TDD, sends to described radio-frequency (RF) switch the control signal that timesharing is switched.
In this preferred embodiment, the described trouble-shooter based on TDD system can also have the function of RRU equipment, in such cases, this device can be according to the mode of operation of TDD, transmission channel and receive path can be worked during difference, therefore adopted radio-frequency (RF) switch to complete the access of radio frequency connector, and undertaken interconnected by radio frequency connector and power board, according to the up-downgoing agreement time of TDD, split to close and carry out timesharing switching, meet the time-sharing work needs of transmission channel and receive path.
For making those skilled in the art understand better the application, with reference to Fig. 3, show the structural representation of a kind of transceiver plate of the application, it specifically can comprise:
Digital processing and main control module 301, control specifically for completing the switch of whole plate master control, management and radio-frequency (RF) switch;
Digital IF Processing module 303, has been mainly used in Digital Up Convert at transmitting chain, at receiver, has been mainly used in Digital Down Convert;
D/A converter module 304, the first filter 305, modulator 306 and the amplifier 307 of transmitting chain;
Radio-frequency (RF) switch 308;
In a word, existing framework in the application's the multiplexing RRU equipment of trouble-shooter, utilizes the isolation characteristic of radio-frequency (RF) switch, by the signal of transmission channel feed-in receive path after radio-frequency (RF) switch isolation decay, form signal coupling Acquisition channel, obtain and transmit; In such cases, because transmission channel and the receive path of TDD system is operated under same frequency, therefore can monitor the signal power of transmission channel by receive path, realize the detection and diagnosis to link failure; This device tool has the following advantages:
The first, can effectively complete the autodiagnosis of transceiver plate, be convenient to the long-range of equipment fault or do not unpack location or troubleshooting;
Second, can utilize abnormal eliminating means, loop fault situation according to failure condition and the described transceiver plate of the full link of RRU equipment, locate corresponding board fault point, also, localization of fault can be arrived to the granularity of board, can judge very easily the position of fault board, further dwindle the position of fault point, the identification that raising problem solves;
The 3rd, the multiplexing as far as possible original passage of transceiver plate, smaller for the change impact of soft firmware;
The 4th, with respect to prior art, the power amplifier monitoring modular simple copy that is coupled is increased to transceiver plate, only use radio-frequency (RF) switch as signal coupling feed-in passage, avoided increasing monitoring link and design, therefore can save, detected the shared area of link, power consumption, cost etc.
Each embodiment in this specification all adopts the mode of going forward one by one to describe, and each embodiment stresses is the difference with other embodiment, between each embodiment identical similar part mutually referring to.For system embodiment, because it is substantially similar to embodiment of the method, so description is fairly simple, relevant part is referring to the part explanation of embodiment of the method.
A kind of trouble-shooter based on TDD system above the application being provided, be described in detail, applied specific case herein the application's principle and execution mode are set forth, the explanation of above embodiment is just for helping to understand the application's method and core concept thereof; Meanwhile, for one of ordinary skill in the art, the thought according to the application, all will change in specific embodiments and applications, and in sum, this description should not be construed as the restriction to the application.
Claims (4)
1. the trouble-shooter based on TDD system, comprise transceiver plate, power board and be connected to the radio frequency connector between described transceiver plate and power board, it is characterized in that, described transceiver plate comprises: digital processing and main control module, mainboard signalling link module, mainboard collection of letters link module and radio-frequency (RF) switch;
Wherein, described radio-frequency (RF) switch is connected with radio frequency connector with main control module, mainboard signalling link module, mainboard collection of letters link module with described digital processing respectively, for according to from the control signal of described digital processing and main control module, transmission channel and the receive path of transceiver plate described in switch;
Described digital processing and main control module, comprising:
The first control unit, in the situation that remote radio unit (RRU) RRU equipment breaks down, sends the control signal of simultaneously opening transmission channel and receive path to described radio-frequency (RF) switch;
The first diagnosis unit, for in the situation that RRU equipment breaks down, the signal power of monitoring receive path, and whether the difference that judges the estimated value of full link signal power and the signal power monitor value of receive path surpasses threshold value, if, the loop of judging described transceiver plate breaks down, otherwise judges the loop fault-free of described transceiver plate; Wherein, described threshold value is for weighing the power loss that described receive path device brings; And
Second opinion unit, for the loop fault situation of the failure condition according to the full link of RRU equipment and described transceiver plate, locates corresponding board fault point.
2. device as claimed in claim 1, is characterized in that, described second opinion unit, comprising:
The first locator unit, in the situation that the full link of RRU equipment occurs that the loop of launching failure and described transceiver plate breaks down, is the fault of sending out of transceiver plate by fault location;
The second locator unit, for occurring at the full link of RRU equipment in the trouble-free situation of loop of launching failure and described transceiver plate, a fault that is power board by fault location;
The 3rd locator unit, in the situation that the full link of RRU equipment occurs that the loop that receives fault and described transceiver plate breaks down, is the reception fault of transceiver plate by fault location;
The 4th locator unit, for occurring receiving in the trouble-free situation of loop of fault and described transceiver plate at the full link of RRU equipment, the reception fault that is power board by fault location.
3. device as claimed in claim 1, is characterized in that, described digital processing and main control module, also comprise:
The second control unit, in the trouble-free situation of remote radio unit (RRU) RRU equipment, according to the up-downgoing agreement time of TDD, sends to described radio-frequency (RF) switch the control signal that timesharing is switched.
4. device as claimed in claim 1, is characterized in that described threshold value is to determine according to the insertion loss characteristic of device in described receive path.
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| CN201310752940.1A CN103702356B (en) | 2013-12-31 | 2013-12-31 | A kind of trouble-shooter based on TDD system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108770009A (en) * | 2018-07-06 | 2018-11-06 | 京信通信系统（中国）有限公司 | Periodic line fault location method, device, equipment and readable storage medium storing program for executing |
| CN113727099A (en) * | 2021-11-01 | 2021-11-30 | 成都华乾科技有限公司 | Transmitter-based intelligent health analysis and diagnosis method and system |
| CN113890617A (en) * | 2021-11-17 | 2022-01-04 | 中邮科通信技术股份有限公司 | Air-coupled multi-frequency 5G NR TDD system signal zooming system and method |
| CN115208489A (en) * | 2022-07-27 | 2022-10-18 | 中国船舶重工集团公司第七二四研究所 | Receiving system task reliability assessment method based on self-checking source |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100372A1 (en) * | 2011-01-27 | 2012-08-02 | Telefonaktiebolaget L M Ericsson (Publ) | Method for rru bypass in wireless communication network and rru device |
| CN103139817A (en) * | 2011-12-02 | 2013-06-05 | 中兴通讯股份有限公司 | Method and device for diagnosing base station channel faults |
| CN103227683A (en) * | 2012-01-30 | 2013-07-31 | 鼎桥通信技术有限公司 | Method and device for jointly detecting RRU (remote radio unit) fault |
| CN103428738A (en) * | 2012-05-18 | 2013-12-04 | 中兴通讯股份有限公司 | Method for detecting abnormities of radio remote unit link and radio remote unit |
-
2013
- 2013-12-31 CN CN201310752940.1A patent/CN103702356B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012100372A1 (en) * | 2011-01-27 | 2012-08-02 | Telefonaktiebolaget L M Ericsson (Publ) | Method for rru bypass in wireless communication network and rru device |
| CN103139817A (en) * | 2011-12-02 | 2013-06-05 | 中兴通讯股份有限公司 | Method and device for diagnosing base station channel faults |
| CN103227683A (en) * | 2012-01-30 | 2013-07-31 | 鼎桥通信技术有限公司 | Method and device for jointly detecting RRU (remote radio unit) fault |
| CN103428738A (en) * | 2012-05-18 | 2013-12-04 | 中兴通讯股份有限公司 | Method for detecting abnormities of radio remote unit link and radio remote unit |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108770009A (en) * | 2018-07-06 | 2018-11-06 | 京信通信系统（中国）有限公司 | Periodic line fault location method, device, equipment and readable storage medium storing program for executing |
| CN108770009B (en) * | 2018-07-06 | 2021-04-06 | 京信通信系统（中国）有限公司 | Link fault positioning method, device, equipment and readable storage medium |
| CN113727099A (en) * | 2021-11-01 | 2021-11-30 | 成都华乾科技有限公司 | Transmitter-based intelligent health analysis and diagnosis method and system |
| CN113890617A (en) * | 2021-11-17 | 2022-01-04 | 中邮科通信技术股份有限公司 | Air-coupled multi-frequency 5G NR TDD system signal zooming system and method |
| CN115208489A (en) * | 2022-07-27 | 2022-10-18 | 中国船舶重工集团公司第七二四研究所 | Receiving system task reliability assessment method based on self-checking source |
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| CN103702356B (en) | 2017-04-05 |
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