CN108599873B - A kind of underwater sound communication tester and test method suitable for external field environment - Google Patents
A kind of underwater sound communication tester and test method suitable for external field environment Download PDFInfo
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- CN108599873B CN108599873B CN201810306680.8A CN201810306680A CN108599873B CN 108599873 B CN108599873 B CN 108599873B CN 201810306680 A CN201810306680 A CN 201810306680A CN 108599873 B CN108599873 B CN 108599873B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B17/00—Monitoring; Testing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B11/00—Transmission systems employing sonic, ultrasonic or infrasonic waves
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B13/00—Transmission systems characterised by the medium used for transmission, not provided for in groups H04B3/00 - H04B11/00
- H04B13/02—Transmission systems in which the medium consists of the earth or a large mass of water thereon, e.g. earth telegraphy
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Abstract
The present invention relates to the test equipments and test method of a kind of underwater sound Modem communication performance for field testing, objective and accurate measurement can be carried out to tested underwater sound Modem performance under external field environment from third-party angle by the equipment, the problem for avoiding test result objectivity deficiency present in the mode commonly tested based on equipment under test itself self performance, has filled up technological gap.The test equipment can complete the test to communication bit error rates, message transmission rate, propagation delay time, communication distance index during field trial, complete comprehensive test to the reliability and validity of underwater sound Modem, can be tried in outfield lake, sea examination during on the spot in real time, the performance of objectively test and evaluation underwater acoustic communication set.
Description
Technical field
It is specially a kind of to test the underwater sound for field trials such as lake examination, sea examinations the invention belongs to technical field of underwater acoustic communication
The test equipment and test method of Modem (also known as underwater acoustic communication set) communication performance, suitable for various types and various connecing
The underwater acoustic communication equipment of mouth is tested for the property.
Background technique
Ocean accounts for about the 71% of earth surface product, and the space of mankind's activity is gradually extended from land to ocean, 21 century
The referred to as century of ocean.Ocean is richly stored with mineral products and the stock of fish, while being also the blue bridge in the connection world, China
Beam and important portal, therefore ocean is developed with important political significance, civilian value and military value.Either seabed resources
Exploration or the navigation of submarine or submarine navigation device, they have required a reliable underwater sound communication network and have carried out communication control.
Underwater sound Modem is the communication node of underwater sound communication network, and the space for being distributed in network everywhere, cooperates between each node, is used for
Complete the transmitting-receiving of data.
The performance of underwater sound Modem influences the communication quality of underwater sound communication network very big.It is marine environment ten on one side
Divide complexity, and the moment varies, this complexity is mainly manifested on multipath transmisstion and Doppler effect；It on the other hand is the underwater sound
The problem of Modem itself is designed, design scheme and the specific communication technology used by underwater sound Modem can all influence its communicativeness
Energy.
The performance indicator for measuring a underwater sound Modem mainly has communication bit error rates, message transmission rate, communication distance etc..
Currently, rarely having the report of the special equipment for underwater sound communication performance test, it is common practice to which transmitting terminal sends a Duan Teding
Data, receiving end calculates the performance indicators such as the bit error rate on the basis of its is decoded, is completed with this to underwater sound Modem communicativeness
The test of energy.However, test result is realized and provided to this test method by tested Modem, based on being devices under
There is objectivity deficiency to the test and evaluation of self performance in itself.And on the other hand, domestic and international underwater sound Modem is current
It is all customization, internal circuit, coding and standard are all different.Therefore by a third party device to the tested underwater sound
Modem performance, which carries out objective and accurate measurement, to be just particularly important.
The major function of underwater sound Modem is to use the transmitting-receiving of the complete paired data of acoustical signal under water.Examination or sea examination in outfield lake
When, test equipment will in real time, accurately, objectively test the performance of underwater sound Modem on the spot.Meanwhile test equipment tests the underwater sound
The communication performance of Modem, cannot be served only for the performance test of certain a kind of underwater sound Modem, and be suitable for all or most
Underwater sound Modem.In test equipment designs, design interface circuit part, provides multiple interfaces for different underwater sound Modem
Connection.
Summary of the invention
Technical problems to be solved
For currently without for the underwater sound Modem communication performance test test equipment, and it is existing be based on Devices to test
Itself has that objectivity is insufficient to the test and evaluation of self performance, and the present invention devises a kind of for field testing
The test equipment and test method of underwater sound Modem communication performance, can be from third-party angle under external field environment by the equipment
Objective and accurate measurement is carried out to tested underwater sound Modem performance.
Technical solution
A kind of underwater sound communication tester suitable for external field environment, it is characterised in that including in man-machine display control module, control
It the heart, cycle tests generator, Performance Evaluation and computing unit, radio frequency transmission module, interface circuit, positioning and time service module and deposits
Store up module；
Man-machine display control module: tester can pass through the operating mode of aobvious control screen selection test equipment, selection test sequence
Column start test process, watch test data；Cycle tests can choose the default cycle tests in equipment memory module, or
Cycle tests is directly inputted by aobvious control screen by tester；
Control centre: being responsible for the control management of equipment operating mode, responds man-machine display control module, and control cycle tests generates
Device, Performance Evaluation and computing unit, radio frequency transmission module, interface circuit, positioning and time service module, memory module；
Cycle tests generator: the cycle tests of specific electrical signal form is generated according to the order of control centre；
Memory module: storage is used for the cycle tests of test, test result, equipment performance log；
Positioning and time service module: positioning and unified time service to test equipment are completed using GPS technology, obtains test equipment
Real-time location information and clock information；
Interface circuit: providing multiple types interface, interface unit need to complete all kinds of input/output interfaces selection,
Conversion process, it is ensured that the signal source that test equipment provides is adapted to the characteristic of various tested underwater sound Modem equipment interfaces；
Radio frequency transmission module: cycle tests and test between two sets of test equipments of T mode and R mode in test process are completed
Parameter is aerial to be transmitted and interacts；In T mode test equipment, radio frequency transmission module generates cycle tests generator
Cycle tests and related test parameters electric signal are converted into radiofrequency signal, and are sent to R mode test equipment by wireless communication；
The radiofrequency signal received is converted into electric signal by R mode test equipment, is sent to Performance Evaluation and computing unit, and test is completed
Test result is sent to T mode test equipment by radio frequency transmission module afterwards；
Performance Evaluation and computing unit: the Serial No. that interface circuit is sended over and the received survey of radio frequency transmission module
Examination sequence compares and analyzes, and calculates the communication bit error rates for providing tested underwater sound Modem, and combines the time obtained and positioning letter
Breath, provides message transmission rate, propagation delay time, communication distance.
A kind of underwater sound communication test method of external field environment, by transmitting-receiving underwater sound Modem to be measured, cloth is put into and presets respectively
Good depth and distance, two sets of test equipments are connected with cable with two underwater sound Modem to be measured respectively and cloth be placed on its water surface with
On surface, under water, wherein Modem T is transmitting terminal to the underwater sound Modem T and Modem R to be measured arrangement, and Modem R is to connect
Receiving end；It is characterized by the following steps: wherein step 1~5 are in T mode test equipment, and step 6~8 are set in the test of R mode
It is standby；
Step 1: selecting cycle tests can be first to input other cycle tests by the aobvious control screen of man-machine display control module
By the specifying information of aobvious control screen input test sequence, save in a storage module, reselection cycle tests；
Step 2: control centre selects cycle tests corresponding to step 1 from memory module, gives cycle tests generation
Device, while position and currently transmitted temporal information by positioning with time service module acquisition T mode test equipment；
Step 3: cycle tests generator generates the cycle tests of electrical signal form, gives cycle tests to Modem respectively
T and radio frequency transmission module；
Electrical signal form cycle tests is converted into underwater sound signal and is sent to Modem R by step 4:Modem T；Radio frequency transmission
Cycle tests and position, temporal information are converted into the radio frequency transmission module that radiofrequency signal is sent to R mode test equipment by module；
Step 5: the test result from radio frequency transmission module is shown by man-machine display control module；
The radio frequency transmission module of step 6:R mode test equipment receives the test sequence that T mode test equipment sends over
Column, sending time and transmission location information, are then sent to Performance Evaluation and computing unit；It will be tested from interface circuit
The decoded data of Modem R are sent to Performance Evaluation and computing unit；
Step 7: Performance Evaluation and computing unit are analyzed and are calculated by comparing according to the data and parameter received
The test result of tested underwater sound Modem, specifically includes communication bit error rates, message transmission rate, propagation delay time, communication distance；
Step 8: test result is issued by T mode test equipment by radio frequency transmission module；It is man-machine using this equipment simultaneously
Display control module is to tester's feedback test result.
Beneficial effect
The present invention devises the test equipment and test method of a kind of underwater sound Modem communication performance for field testing,
Objective and accurate measurement can be carried out to tested underwater sound Modem performance under external field environment from third-party angle by the equipment,
Avoid test result objectivity present in the mode commonly tested based on equipment under test itself self performance not
The problem of foot, has filled up technological gap.The test equipment can be completed to pass communication bit error rates, data during field trial
Comprehensive test to the reliability and validity of underwater sound Modem is completed in the test of defeated rate, propagation delay time, communication distance index,
Can be tried in outfield lake, sea examination during on the spot in real time, the performance of objectively test and evaluation underwater acoustic communication set.
Detailed description of the invention
Fig. 1 underwater sound communication tester equipment composition block diagram
Fig. 2 field trial method hardware connection diagram
Fig. 3 field trial test flow chart
Specific embodiment
Now in conjunction with embodiment, attached drawing, the invention will be further described:
The present invention devises the test equipment of a underwater sound Modem communication performance for field testing (hereinafter referred to as
Test equipment) and test method.Test equipment can complete communication bit error rates, the number to underwater sound Modem to be measured in field trial
According to the test of transmission rate, propagation delay time, communication distance performance indicator, can complete to the reliability of underwater sound Modem and effectively
Property it is comprehensive test and objective evaluation.There are two types of operating modes for test equipment tool: sending test pattern (T) and receives test pattern
(R).One complete test process needs to be respectively placed in two sets of test equipments of T, R mode.Every set test equipment is by man-machine aobvious
Control module, control centre, cycle tests generator, Performance Evaluation and computing unit, radio frequency transmission module, interface circuit, positioning
It is formed with time service module, memory module, equipment composition is as shown in Figure 1.
The concrete function of each module is as follows:
Man-machine display control module: tester can pass through the operating mode of aobvious control screen selection test equipment, selection test sequence
Column start test process, watch test data.Cycle tests can choose the default cycle tests in equipment memory module, or
Cycle tests is directly inputted by aobvious control screen by tester.
Control centre: being responsible for the control management of equipment operating mode, responds man-machine display control module, and control cycle tests generates
Device, Performance Evaluation and computing unit, radio frequency transmission module, interface circuit, positioning and time service module, memory module.
Cycle tests generator: the cycle tests of specific electrical signal form is generated according to the order of control centre.
Memory module: the contents such as cycle tests, test result, the equipment performance log of storage for test.
Positioning and time service module: positioning and unified time service to test equipment are completed using GPS technology, obtains test equipment
Real-time location information and clock information.
Interface circuit: providing multiple types interface, interface unit need to complete all kinds of input/output interfaces selection,
Conversion process, it is ensured that the signal source that test equipment provides is adapted to the characteristic of various tested underwater sound Modem equipment interfaces.
Radio frequency transmission module: cycle tests and test between two sets of test equipments of T mode and R mode in test process are completed
Parameter is aerial to be transmitted and interacts.In T mode test equipment, radio frequency transmission module generates cycle tests generator
Cycle tests and related test parameters electric signal are converted into radiofrequency signal, and are sent to R mode test equipment by wireless communication；
The radiofrequency signal received is converted into electric signal by R mode test equipment, is sent to Performance Evaluation and computing unit, and test is completed
Test result is sent to T mode test equipment by radio frequency transmission module afterwards.
Performance Evaluation and computing unit: the Serial No. that interface circuit is sended over and the received survey of radio frequency transmission module
Examination sequence compares and analyzes, and calculates the communication bit error rates for providing tested underwater sound Modem, and combines the time obtained and positioning letter
Breath, provides message transmission rate, propagation delay time, communication distance.
In lake during the field testings such as examination, sea examination, following steps are executed:
(1) by transmitting-receiving underwater sound Modem to be measured, cloth is put into the depth and distance pre-set, two sets of test equipments point respectively
It is not connected with cable with two underwater sound Modem to be measured and cloth is placed on the surface of its water surface or more, as shown in Figure 2.The underwater sound to be measured
Modem T and Modem R arrange that wherein Modem T is transmitting terminal, and Modem R is receiving end under water.
(2) tester will be set as T mode with the test equipment of Modem T-phase to be measured even by man-machine display control module,
The operating mode for the test equipment being connected with Modem R to be measured is arranged to R mode.
(3) originator tester selects cycle tests in T mode test equipment by man-machine display control module.
(4) originator tester starts the test process of T mode test equipment by man-machine display control module, and test equipment is logical
It crosses cable and sends cycle tests to Modem T to be measured, Modem T sends cycle tests in underwater acoustic channel, while T mode
The cycle tests and related test parameters are sent to the test of R mode by its radio frequency transmission module on the water surface and set by test equipment
It is standby.
(5) R mode test equipment receives and records the data and its receiving time that Modem R to be measured is decoded, and passes through
Positioning obtains current location information with time service module, and it is passed through on the water cycle tests that its radio frequency transmission module receives,
Sending time sends data, receiving time that location information decodes with Modem R, receives location information and compare, logical
It crosses its Performance Evaluation and computing unit completes the test and assessment of the communication performance to a pair of underwater sound Modem to be measured, and will test
As a result T mode test equipment is sent to by radio frequency transmission module.Test result include communication bit error rates, transmission rate, time delay,
Communication distance.
(6) transmitting-receiving both ends tester sees test result by man-machine display control module.
(7) test terminates.
The test process of test equipment is divided into T and R both of which.Before test, tester passes through man-machine aobvious control mould
The operating mode for sending test equipment is arranged to T by block, the operating mode for receiving test equipment is arranged to R, Fig. 3 gives survey
Equipment workflow during examination under both of which.
T mode test equipment inner workings:
(1) tester selects cycle tests by the aobvious control screen of man-machine display control module.To input other cycle tests,
The specifying information that aobvious control screen input test sequence can be first passed through, saves in a storage module, reselection cycle tests.
(2) control centre obtains the cycle tests to be generated according to the operation of tester from memory module, gives survey
Sequence generator is tried, while position and currently transmitted temporal information by positioning with time service module acquisition T mode test equipment.
(3) cycle tests generator generate electrical signal form cycle tests, cycle tests is given respectively Modem T and
Radio frequency transmission module.
(4) electrical signal form cycle tests is converted into underwater sound signal and is sent to Modem R by Modem T；Radio frequency transmission mould
Cycle tests and position, temporal information are converted into the radio frequency transmission module that radiofrequency signal is sent to R mode test equipment by block.
(5) test result from radio frequency transmission module is fed back into tester by man-machine display control module.
R mode test equipment inner workings:
(1) the radio frequency transmission module of R mode test equipment receive cycle tests that T mode test equipment sends over,
Sending time and transmission location information, are then sent to Performance Evaluation and computing unit；By the tested Modem from interface circuit
The decoded data of R are sent to Performance Evaluation and computing unit；
(2) Performance Evaluation and computing unit be according to the data and parameter received, by compare analysis and be calculated by
The test result for surveying underwater sound Modem, specifically includes communication bit error rates, message transmission rate, propagation delay time, communication distance；
(3) test result is issued by T mode test equipment by radio frequency transmission module；The man-machine aobvious control of this equipment is utilized simultaneously
Module is to tester's feedback test result.
During the test, test equipment is convenient to the performance test operation of underwater sound Modem, is set by above-mentioned two sets of tests
Standby joint test, test equipment can obtain tested underwater sound Modem communication performance in real time, objectively on the spot, complete to the underwater sound
Comprehensive test of the reliability and validity of Modem and objective evaluation.
Claims (2)
1. a kind of underwater sound communication tester suitable for external field environment, it is characterised in that including man-machine display control module, control centre,
Cycle tests generator, Performance Evaluation and computing unit, radio frequency transmission module, interface circuit, positioning and time service module and storage
Module；
Man-machine display control module: tester can be selected cycle tests, be opened by the operating mode of aobvious control screen selection test equipment
Dynamic test process, watches test data；Cycle tests can choose the default cycle tests in equipment memory module, or by testing
Personnel directly input cycle tests by aobvious control screen；
Control centre: being responsible for the control management of equipment operating mode, respond man-machine display control module, control cycle tests generator,
Performance Evaluation and computing unit, radio frequency transmission module, interface circuit, positioning and time service module, memory module；
Cycle tests generator: the cycle tests of specific electrical signal form is generated according to the order of control centre；
Memory module: storage is used for the cycle tests of test, test result, equipment performance log；
Positioning and time service module: positioning and unified time service to test equipment are completed using GPS technology, it is real-time to obtain test equipment
Location information and clock information；
Interface circuit: providing multiple types interface, and interface unit needs to complete the selection of all kinds of input/output interfaces, conversion
Processing, it is ensured that the signal source that test equipment provides is adapted to the characteristic of various tested underwater sound Modem equipment interfaces；
Radio frequency transmission module: cycle tests and test parameter between two sets of test equipments of T mode and R mode are completed in test process
It is aerial to transmit and interact；In T mode test equipment, test that radio frequency transmission module generates cycle tests generator
Sequence and related test parameters electric signal are converted into radiofrequency signal, and are sent to R mode test equipment by wireless communication；R mould
The radiofrequency signal received is converted into electric signal by formula test equipment, Performance Evaluation and computing unit is sent to, after the completion of test
Test result is sent to T mode test equipment by radio frequency transmission module；
Performance Evaluation and computing unit: the Serial No. and the received test sequence of radio frequency transmission module that interface circuit is sended over
Column compare and analyze, and calculate the communication bit error rates for providing tested underwater sound Modem, and combine the time obtained and location information,
Provide message transmission rate, propagation delay time, communication distance.
2. a kind of test method carried out using tester described in claim 1 to outfield ambient water sound communication, by two to
Surveying transmitting-receiving underwater sound Modem, cloth is put into the depth and distance pre-set respectively, and two sets of test equipments use cable and two respectively
The connected simultaneously cloth of underwater sound Modem to be measured is placed on the surface of its water surface or more, and the underwater sound Modem T and Modem R to be measured is arranged in water
Under, wherein Modem T is transmitting terminal, and Modem R is receiving end；It is characterized by the following steps: wherein step 1~5 are in T mould
Formula test equipment, step 6~8 are in R mode test equipment；
Step 1: selecting cycle tests that can first pass through to input other cycle tests by the aobvious control screen of man-machine display control module
The specifying information of aobvious control screen input test sequence, saves in a storage module, reselection cycle tests；
Step 2: control centre selects cycle tests corresponding to step 1 from memory module, gives cycle tests generator, together
When by position with time service module obtain T mode test equipment position and currently transmitted temporal information；
Step 3: cycle tests generator generate electrical signal form cycle tests, cycle tests is given respectively Modem T and
Radio frequency transmission module；
Electrical signal form cycle tests is converted into underwater sound signal and is sent to Modem R by step 4:Modem T；Radio frequency transmission module
Cycle tests and position, temporal information are converted into the radio frequency transmission module that radiofrequency signal is sent to R mode test equipment；
Step 5: the test result from radio frequency transmission module is shown by man-machine display control module；
The radio frequency transmission module of step 6:R mode test equipment receives cycle tests, the hair that T mode test equipment sends over
It send the time and sends location information, be then sent to Performance Evaluation and computing unit；By the tested Modem R from interface circuit
Decoded data are sent to Performance Evaluation and computing unit；
Step 7: Performance Evaluation and computing unit are analyzed and are calculated tested by comparing according to the data and parameter received
The test result of underwater sound Modem specifically includes communication bit error rates, message transmission rate, propagation delay time, communication distance；
Step 8: test result is issued by T mode test equipment by radio frequency transmission module；The man-machine aobvious control of this equipment is utilized simultaneously
Module is to tester's feedback test result.
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| CN108599873B true CN108599873B (en) | 2019-08-09 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571902A (en) * | 2010-12-14 | 2012-07-11 | 中国科学院声学研究所 | Wireless and underwater sound communication buoy |
| CN107682297A (en) * | 2017-09-06 | 2018-02-09 | 西北工业大学 | A kind of mobile underwater sound communication method |
-
2018
- 2018-04-08 CN CN201810306680.8A patent/CN108599873B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102571902A (en) * | 2010-12-14 | 2012-07-11 | 中国科学院声学研究所 | Wireless and underwater sound communication buoy |
| CN107682297A (en) * | 2017-09-06 | 2018-02-09 | 西北工业大学 | A kind of mobile underwater sound communication method |
Non-Patent Citations (2)
| Title |
|---|
| "水声测距通信一体化技术分析及试验";胡安平等;《电讯技术》;20140831;全文 * |
| "水声通信半物理仿真平台设计与应用";周琳等;《中国海洋大学学报》;20110531;全文 * |
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