CN109361476B - Portable microwave perspective measuring device - Google Patents
Portable microwave perspective measuring device Download PDFInfo
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- CN109361476B CN109361476B CN201811549107.6A CN201811549107A CN109361476B CN 109361476 B CN109361476 B CN 109361476B CN 201811549107 A CN201811549107 A CN 201811549107A CN 109361476 B CN109361476 B CN 109361476B
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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
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
- H04B1/40—Circuits
Abstract
The invention discloses a portable microwave through-vision measuring device which comprises an earphone, a handheld terminal, a battery pack, a portable antenna rod and a microwave communication machine. The antenna rods can be erected according to actual requirements by adopting a frequency division multiplexing mode for pairing use, the standard broadband horn antenna is used for conducting communication condition measurement, the working state of the microwave communication equipment can be equivalently and actually used, and the whole machine is powered by a 14.4V/5Ah battery pack. The microwave communication machine receives and reports the receiving level to the handheld terminal, the equivalent receiving level of the actual microwave station is obtained by processing with a built-in program, link information is displayed on the electronic map by combining navigation information, and the quality of a communication link is evaluated. The whole set of device integrated level is high, disposes 18 meters portable carbon fiber antenna poles, can bear by manpower and carry, and the process of erectting is simple, accomplishes full height and erects the number of people that needs and is less than 4 people, disposes multifrequency section low-power consumption microwave communication unit simultaneously, can simulate the operating condition of polytype microwave communication machine, provides the decision-making reference for microwave station site selection.
Description
Technical Field
The invention relates to a portable microwave visual inspection measuring device which is suitable for microwave visual inspection condition measurement in the field of microwave communication.
Background
The microwave common view measurement has wide application value in the military and civil fields. Microwave communication equipment is used as a trunk communication means and has important application in the aspects of broadcast television, mobile communication and the like. Due to the sight distance requirement of microwave communication, the construction of a microwave station needs to firstly carry out sight condition measurement. Due to the communication characteristics of the microwave stations, the microwave stations are mostly built in mountainous areas, hilly areas and other areas with inconvenient traffic, which brings greater challenges for the visual measurement.
At present, the civil field basically depends on-picture operation and field investigation by using auxiliary equipment such as theodolite and the like to carry out the perspective measurement. The map operation needs to be based on the latest map, but the influence of variable factors such as tall trees in the path on the communication cannot be fully considered. In field exploration, an auxiliary instrument needs to be erected on a communication tower for measurement, the auxiliary instrument is limited in a newly built site or a region with inconvenient traffic depending on field facilities, and meanwhile, the conventional test means are limited by other factors influencing a link, such as atmospheric parameters, and the like, and the ideal test effect is difficult to achieve.
In the military field, a newly-built military microwave station is more remote in station site selection, the existing station site upgrading is difficult to apply, and meanwhile, due to the fact that the station site is far away from residential areas, a station building area is lack of hydropower road infrastructure support. In addition, military microwave communication equipment often exists as auxiliary facilities for other weapon systems, and huge investment is needed to ensure the facilities and personnel operation in the station building area, so that more reliable data support needs to be provided for the selection of the station site. Based on these considerations, conventional testing methods fail to provide effective measurement data aid decision-making. The most reliable method for ensuring the station site visibility condition is to apply the actually used microwave communication equipment to carry out verification under the real working condition, but the actually used vehicle-mounted microwave communication equipment cannot directly reach the station site to carry out visibility measurement due to lack of infrastructure in the site selection stage. In view of the above background analysis, an effective microwave visibility measuring device is in practical need in both military and civilian applications.
Disclosure of Invention
In view of the above analysis, the present invention provides a portable microwave visibility measuring device for performing visibility measurement of a microwave link.
The technical scheme adopted by the invention is as follows:
a portable microwave visual measuring device comprises a handheld terminal 2, a lithium battery 3, a microwave communicator 5 and an antenna 6;
and an uplink transmission link: the hand-held terminal 2 receives the analog voice and obtains the position information of the home terminal, multiplexes the analog voice with the service code stream generated by the home terminal and the position information of the home terminal, and outputs the multiplexed code stream to the microwave communication machine 5 after being switched by the lithium battery 3; the microwave communication machine 5 carries out frequency conversion amplification and filtering on the input code stream to form a radio frequency signal, and the radio frequency signal is radiated out through the antenna 6;
and a downlink receiving link: the antenna 6 receives the radio frequency signal transmitted from the opposite terminal and outputs the radio frequency signal to the microwave communication machine 5; the microwave communicator 5 demodulates the radio frequency signal after filtering amplification and frequency conversion into a baseband signal comprising a data code stream, voice information and opposite terminal position information, processes the data code stream to obtain the error rate information of communication, and then transmits the error rate information, the voice information, the opposite terminal position information and the state information of the local terminal equipment back to the handheld terminal 2 after being switched by the lithium battery 3; and the handheld terminal 2 compares the opposite end position information with the local end position information, calculates the communication distance of the link, obtains the communication quality of the link to be tested by combining the error rate information, and displays the state information of the local end equipment and the communication quality of the link to be tested.
The handheld terminal 2 comprises a voice processing module 7, a monitoring module 8, a link planning module 9, a navigation module 10 and a multiplexing and demultiplexing module 11;
and an uplink transmission link:
the speech processing module 7 is used for performing compression coding on the input analog voice to convert the analog voice into digital voice, and outputting the digital voice to the multiplexing and demultiplexing module 11 respectively; the monitoring module 8 is used for sending a query instruction to the multiple tapping module 11 to acquire and display the state information of the microwave communication machine 5; the navigation module 10 is used for acquiring local end position information and respectively outputting the local end position information to the link planning module 9 and the multiple tapping module 11; the multiple tap module 11 is configured to multiplex a digital voice code stream, a data code stream, and location information of the home terminal into a code stream, and send the code stream to the microwave communication machine 5 after being switched by the lithium battery 3, and is further configured to obtain status information of the microwave communication machine 5 after receiving an inquiry instruction of the monitoring module 8, and send the status information to the monitoring module 8;
and a downlink receiving link:
the complex tapping module 11 is configured to receive the error rate information, the digital voice, the opposite end position information, and the state information of the microwave communicator 5, tap the received error rate information, the digital voice, output the digital voice to the speech processing module 7, output the error rate information and the opposite end position information to the link planning module 9, and output the state information of the microwave communicator 5 to the monitoring module 8 for display; the link planning module 9 is configured to compare the opposite-end position information with the home-end position information provided by the navigation module 10, calculate a communication distance of the link, obtain the communication quality of the link to be tested by combining the bit error rate information, and output the communication quality of the link to be tested to the monitoring module 8 for display; the speech processing module 7 is used for restoring the digital voice to the analog voice and outputting the analog voice.
The microwave communication machine 5 comprises a baseband processing unit 12, a frequency converter unit 13, a local oscillator unit 14 and a duplex filter unit 15;
uplink workflow: the baseband processing unit 12 receives the code stream information output by the handheld terminal 2, performs channel coding, adds a frame header, multiplexes into a data frame, then forms a high-code-rate transmission code stream with the multiplexed data frame, performs D/a conversion to generate an intermediate frequency signal, and outputs the intermediate frequency signal to the frequency converter unit 13; the frequency converter unit 13 mixes the transmitted intermediate frequency signal with the up-conversion local oscillation signal sent by the local oscillation unit 14, amplifies the mixed signal to a set power, filters the amplified signal by the duplex filter unit 15, then enters the antenna 6, and radiates the filtered signal by the antenna 6 to enter a wireless link;
in the downlink working process, the duplex filter unit 15 receives the radio-frequency signal captured by the antenna 6, filters the radio-frequency signal and sends the radio-frequency signal to the frequency converter unit 13; the frequency converter unit 13 performs low noise amplification on the radio frequency signal, then performs frequency mixing with a down-conversion local oscillator sent by the local oscillator unit 14 to obtain a receiving intermediate frequency signal, and outputs the receiving intermediate frequency signal to the baseband processing unit 12; the baseband processing unit 12 performs a/D conversion on the received intermediate frequency signal and demodulates the signal to obtain a digital baseband signal; the digital baseband signal comprises digital voice, data code stream and opposite terminal position information, the data code stream is demodulated to obtain error rate information, and the digital voice, the error rate information, the opposite terminal position information and the local state information are transmitted to the handheld terminal 2 after being converted by the lithium battery 3.
Compared with the prior art, the invention has the advantages that:
the antenna rod contained in the device 1 can be elevated, the test is carried out according to the communication height of the actual microwave equipment, the communication condition of the actual microwave equipment can be equivalently measured, and the test result is more reliable.
The 2 microwave through-vision measuring device integrates a detection block, error code statistics, navigation and an electronic map, can extract the distance information of a link, displays the distance information on the electronic map, can calculate the link quality of actual microwave equipment through data processing, and can form perfect data support.
3 complete set of microwave perspective measuring device can be decomposed into four backpacks, and maximum length is less than 1.2 meters after the decomposition, and single package maximum weight is less than 12kg, can use pick up car minibus long distance transport, can the manpower bear after the decomposition, and it is convenient to erect, is applicable to the use in the mountainous area that the traffic is inconvenient more.
4 convenient to use, the whole set of device uses a lithium cell group power supply, can maintain continuous operation time and be greater than 5 hours, uses the waterproof handheld terminal of reinforcement, and environmental suitability is stronger.
5 in the area without the coverage of the mobile phone signal, the device provides a path of voice, so that the two ends of the link can be ensured to communicate while testing, and emergency communication can be provided.
6 the antenna rod in the device adopts a combined carbon fiber rod, and can be combined to form various erection heights; the microwave communication machine has high integration level, adopts series products, has consistent fixed structure, and can expand the application range of the whole set of device by replacing microwave communication equipment simulating a plurality of frequency bands.
Description of the drawings:
FIG. 1 is an electrical schematic block diagram of an embodiment of the present invention;
FIG. 2 is an electrical schematic block diagram of a hand-held terminal of the present invention;
fig. 3 is an electrical schematic block diagram of a microwave communicator of the present invention.
The specific implementation mode is as follows:
referring to fig. 1, the local terminal and the opposite terminal are both provided with a set of portable microwave visual measuring device, and the portable microwave visual measuring device comprises an earphone 1, a handheld terminal 2, a lithium battery 3, a portable antenna mast 4, a microwave communicator 5 and an antenna 6.
And an uplink transmission link: analog voice input through an earphone 1 enters a handheld terminal 2, the handheld terminal 2 simultaneously acquires position information of a home terminal, the analog voice is multiplexed with a service code stream generated by the home terminal and the position information of the home terminal, and the multiplexed code stream is output to a microwave communication machine 5 after being switched through a lithium battery 3; the microwave communication machine 5 carries out frequency conversion amplification and filtering on the multiplexed code stream to form a radio frequency signal, and the radio frequency signal is radiated out through an antenna 6;
and a downlink receiving link: the antenna 6 receives the radio frequency signal transmitted from the opposite terminal and outputs the radio frequency signal to the microwave communication machine 5; the microwave communicator 5 demodulates the radio frequency signal after filtering amplification and frequency conversion into a baseband signal comprising a data code stream, voice information and opposite terminal position information, the data code stream is processed by a baseband to obtain the error rate information of communication, and then the error rate information, the voice information, the opposite terminal position information and the state information of the local terminal equipment are transmitted back to the handheld terminal 2 after being switched by the lithium battery 3; the handheld terminal 2 compares the opposite end position information with the home end position information, calculates the communication distance of the link, obtains the communication quality of the link to be tested by combining the error rate information, displays the state information of the home end device and the communication quality of the link to be tested, and outputs the voice information through the earphone 1. The microwave communication machine 5 is elevated through a portable antenna rod, and a stable power supply is provided for the whole set of equipment by a 14.4V/5Ah lithium battery 3 to supply power for the microwave communication machine 5.
Referring to fig. 2, the handheld terminal of the present invention includes a voice processing module 7, a monitoring module 8, a link planning module 9, a navigation module 10 and a multiplexing/demultiplexing module 11. A map is arranged in the monitoring module 8; when the device is in operation, the uplink: the speech processing module 7 is used for performing compression coding on the input analog voice to convert the analog voice into digital voice, and outputting the digital voice to the multiplexing and demultiplexing module 11 respectively; the monitoring module 8 is used for sending a query instruction to the multiple tapping module 11 to acquire and display the state information of the microwave communication machine 5; the navigation module 10 is used for acquiring local end position information and respectively outputting the local end position information to the link planning module 9 and the multiple tapping module 11; the multiple tap module 11 is configured to multiplex a digital voice code stream, a data code stream, and location information of the home terminal into a code stream, and send the code stream to the microwave communication machine 5 after being switched by the lithium battery 3, and is further configured to obtain status information of the microwave communication machine 5 after receiving an inquiry instruction of the monitoring module 8, and send the status information to the monitoring module 8;
and a downlink receiving link:
the complex tapping module 11 is configured to receive the error rate information, the digital voice, the opposite end position information, and the state information of the microwave communicator 5, tap the received error rate information, the digital voice, output the digital voice to the speech processing module 7, output the error rate information and the opposite end position information to the link planning module 9, and output the state information of the microwave communicator 5 to the monitoring module 8 for display; the link planning module 9 is configured to compare the opposite-end position information with the home-end position information provided by the navigation module 10, calculate a communication distance of the link, obtain the communication quality of the link to be tested in combination with the bit error rate information, query the communication quality by the monitoring module 8, and output the communication quality of the link to be tested to the monitoring module 8 by the link planning module 9 for display; the speech processing module 7 is used for restoring the digital voice to the analog voice and outputting the analog voice.
Referring to fig. 3, the microwave communication machine 5 of the present invention includes a baseband processing unit 12, a frequency converter unit 13, a local oscillator unit 14, and a duplex filter unit 15;
uplink workflow: the baseband processing unit 12 receives the code stream information output by the handheld terminal 2, performs channel coding, adds a frame header, multiplexes into a data frame, then forms a high-code-rate transmission code stream with the multiplexed data frame, performs D/a conversion to generate an intermediate frequency signal, and outputs the intermediate frequency signal to the frequency converter unit 13; the frequency converter unit 13 mixes the transmitted intermediate frequency signal with the up-conversion local oscillation signal sent by the local oscillation unit 14, amplifies the mixed signal to a set power, filters the amplified signal by the duplex filter unit 15, then enters the antenna 6, and radiates the filtered signal by the antenna 6 to enter a wireless link;
in the downlink working process, the duplex filter unit 15 receives the radio-frequency signal captured by the antenna 6, filters the radio-frequency signal and sends the radio-frequency signal to the frequency converter unit 13; the frequency converter unit 13 performs low noise amplification on the radio frequency signal, then performs frequency mixing with a down-conversion local oscillator sent by the local oscillator unit 14 to obtain a receiving intermediate frequency signal, and outputs the receiving intermediate frequency signal to the baseband processing unit 12; the baseband processing unit 12 performs a/D conversion on the received intermediate frequency signal and demodulates the signal to obtain a digital baseband signal; the digital baseband signal comprises digital voice, data code stream and opposite terminal position information, the data code stream is processed to obtain error rate information, and the digital voice, the error rate information, the opposite terminal position information and the local state information are transmitted to the handheld terminal 2 after being switched by the lithium battery 3.
All digital signal processing functions in the microwave communication machine are completed by one FPGA of ARTEL company, so that the integration level and reliability of the system are improved. The microwave communication main state and alarm information collected by the FPGA comprise a receiving level, a receiving signal-to-noise ratio, a baseband alarm, a local oscillator alarm, a power supply voltage detection amount and a module temperature.
Claims (4)
1. A portable microwave is looked through measuring device which characterized in that: the system comprises a handheld terminal (2), a lithium battery (3), a microwave communication machine (5) and an antenna (6);
and an uplink transmission link: the handheld terminal (2) receives the analog voice and acquires the position information of the home terminal, multiplexes the analog voice and the data code stream and the position information of the home terminal, and outputs the multiplexed code stream to the microwave communication machine (5) after being switched by the lithium battery (3); the microwave communication machine (5) performs frequency conversion amplification and filtering on the multiplexed code stream to form a radio frequency signal, and the radio frequency signal is radiated by an antenna (6);
and a downlink receiving link: the antenna (6) receives the radio frequency signal sent by the opposite terminal and outputs the radio frequency signal to the microwave communication machine (5); the microwave communication machine (5) demodulates the radio frequency signal after filtering amplification and frequency conversion into a baseband signal comprising a data code stream, voice information and opposite terminal position information, processes the data code stream to obtain the error rate information of communication, and then sends the error rate information, the voice information, the opposite terminal position information and the state information of the local terminal equipment back to the handheld terminal (2) after being switched by the lithium battery (3); and the handheld terminal (2) compares the opposite end position information with the local end position information, calculates the communication distance of the link, obtains the communication quality of the tested link by combining the error rate information, displays the local end equipment state information and the communication quality of the tested link, and outputs the voice information.
2. A portable microwave fluoroscopy measurement device according to claim 1, wherein: the handheld terminal (2) comprises a voice processing module (7), a monitoring module (8), a link planning module (9), a navigation module (10) and a multiplexing and demultiplexing module (11);
and an uplink transmission link:
the voice processing module (7) is used for compressing, coding and converting the input analog voice into digital voice, and respectively outputting the digital voice to the multiplexing and demultiplexing module (11); the monitoring module (8) is used for sending a query instruction to the multiple tapping module (11) to acquire and display the state information of the microwave communication machine (5); the navigation module (10) is used for acquiring the position information of the local terminal and respectively outputting the position information to the link planning module (9) and the multiplexing and demultiplexing module (11); the multiple access module (11) is used for multiplexing the digital voice and data code stream of the home terminal and the position information of the home terminal into a path of digital signal, transmitting the digital signal to the microwave communication machine (5) after being switched by the lithium battery (3), and obtaining the state information of the microwave communication machine (5) after receiving the query instruction of the monitoring module (8) and transmitting the state information to the monitoring module (8);
and a downlink receiving link:
the multiple tapping module (11) is used for receiving the error rate information, the digital voice, the opposite end position information and the state information of the microwave communication machine (5), tapping, outputting the digital voice to the voice processing module (7), outputting the error rate information and the opposite end position information to the link planning module (9), and outputting the state information of the microwave communication machine (5) to the monitoring module (8) for displaying; the link planning module (9) is used for comparing the opposite end position information with the home end position information provided by the navigation module (10), calculating the communication distance of the link, obtaining the communication quality of the link to be tested by combining the error rate information, and outputting the communication quality of the link to be tested to the monitoring module (8) for displaying; the voice processing module (7) is used for restoring the digital voice into the analog voice and outputting the analog voice.
3. A portable microwave fluoroscopy measurement device according to claim 1, wherein: the microwave communication machine (5) comprises a baseband processing unit (12), a frequency converter unit (13), a local oscillator unit (14) and a duplex filter unit (15);
uplink workflow: the baseband processing unit (12) receives the code stream information output by the handheld terminal (2), performs channel coding, adds a frame header, multiplexes into a data frame, then forms the multiplexed data frame into a transmission code stream with a high code rate, performs D/A conversion to generate an intermediate frequency signal, and outputs the intermediate frequency signal to the frequency converter unit (13); the frequency converter unit (13) mixes the transmitted intermediate frequency signal with the up-conversion local oscillation signal sent by the local oscillation unit (14) and amplifies the mixed signal to a set power, the mixed signal is filtered by the duplex filter unit (15), enters the antenna (6), and the filtered signal is radiated by the antenna (6) and enters a wireless link;
in the downlink working process, a duplex filter unit (15) receives the radio-frequency signals captured by the antenna (6), filters the radio-frequency signals and sends the radio-frequency signals to a frequency converter unit (13); the frequency converter unit (13) performs low-noise amplification on the radio frequency signal, then performs frequency mixing on the radio frequency signal and a down-conversion local oscillator sent by the local oscillator unit (14) to obtain a receiving intermediate frequency signal, and outputs the receiving intermediate frequency signal to the baseband processing unit (12); the baseband processing unit (12) performs A/D conversion on the received intermediate frequency signal and demodulates the intermediate frequency signal to obtain a digital baseband signal; the digital baseband signal comprises digital voice, data code stream and opposite terminal position information, the demodulated data code stream is processed to obtain error rate information, and the digital voice, the error rate information, the opposite terminal position information and the local state information are transmitted to the handheld terminal (2) after being switched by the lithium battery (3).
4. A portable microwave fluoroscopy measurement device according to claim 1, wherein: the microwave communication device also comprises a portable antenna rod (4), and the microwave communication device (5) is elevated by using the portable antenna rod (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549107.6A CN109361476B (en) | 2018-12-18 | 2018-12-18 | Portable microwave perspective measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811549107.6A CN109361476B (en) | 2018-12-18 | 2018-12-18 | Portable microwave perspective measuring device |
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| CN109361476A CN109361476A (en) | 2019-02-19 |
| CN109361476B true CN109361476B (en) | 2021-07-06 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102158366A (en) * | 2010-12-02 | 2011-08-17 | 中国电子科技集团公司第五十四研究所 | Onboard communication chain data statistic device |
| CN202978961U (en) * | 2012-12-24 | 2013-06-05 | 中国电子科技集团公司第五十四研究所 | Ultra-low speed wireless communication device |
| CN203225889U (en) * | 2012-06-05 | 2013-10-02 | 覃珩 | Novel wireless emergency communication system |
| CN203551786U (en) * | 2013-11-19 | 2014-04-16 | 广州市西洛电气制造有限公司 | Intelligent handheld terminal based on Beidou satellite and interphone |
| WO2015160380A1 (en) * | 2014-04-17 | 2015-10-22 | Commscope Technologies Llc | Telecommunications system for transporting facility control data and wireless coverage information |
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2018
- 2018-12-18 CN CN201811549107.6A patent/CN109361476B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102158366A (en) * | 2010-12-02 | 2011-08-17 | 中国电子科技集团公司第五十四研究所 | Onboard communication chain data statistic device |
| CN203225889U (en) * | 2012-06-05 | 2013-10-02 | 覃珩 | Novel wireless emergency communication system |
| CN202978961U (en) * | 2012-12-24 | 2013-06-05 | 中国电子科技集团公司第五十四研究所 | Ultra-low speed wireless communication device |
| CN203551786U (en) * | 2013-11-19 | 2014-04-16 | 广州市西洛电气制造有限公司 | Intelligent handheld terminal based on Beidou satellite and interphone |
| WO2015160380A1 (en) * | 2014-04-17 | 2015-10-22 | Commscope Technologies Llc | Telecommunications system for transporting facility control data and wireless coverage information |
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