CN101365146B - Minimized embedded type broadcast television monitoring direction measuring station system - Google Patents
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- CN101365146B CN101365146B CN200810196487XA CN200810196487A CN101365146B CN 101365146 B CN101365146 B CN 101365146B CN 200810196487X A CN200810196487X A CN 200810196487XA CN 200810196487 A CN200810196487 A CN 200810196487A CN 101365146 B CN101365146 B CN 101365146B
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Abstract
The invention is a miniature embedded-type system for a broadcast and television monitoring and direction finding station, which comprises a foldable horizontal polarization interferometer antenna array, an electrically screwed switch unit, a RF amplifier module, a board-cassette receiver, a monitoring, direction finding and processing module, an embedded-type computer system, an environment monitoring and alarming module, a remote control module, a hub, a wired network transmission module, a wireless network transmission module, an alternating current of a power module, a direct current, UPSor power supply by solar energy, a control center, a lighting rod, a UHF five-unit horizontal polarization passive monitoring and direction finding antenna (300MHz-1300MHz),and a VHF five-unit horizontal polarization passive monitoring and direction finding antenna array (30MHz-300MHz). The system has the advantages of compact structure, convenient installation and maintenance, flexible networking, safe transmission of a plurality of wired/wireless network data, and achieves the functions of acquiring the video and audio of broadcast and television, compressing, encoding, monitoring task automatically, finding directions, positioning,, analyzing statistically, and alarming in the abnormal condition.
Description
Technical field
What the present invention relates to is a kind of minimized embedded type broadcast television monitoring direction measuring station system, belongs to the broadcast television monitoring technical field.
Background technology
Broadcast television monitoring is a launch mass of improving radio and television, verifies the coverage effect of radio and television, guarantees broadcast television signal emission and transmission security, safeguards on-air radio electric wave order, adequately protects and effectively utilizes the important assurance of frequency spectrum resource.Broadcast television monitoring is to program making simultaneously, and program transmission and broadcast system carry out the important means of Technical Quality Evaluation; It is the main information source that leaders at different levels understand, grasp actual broadcast quality and coverage effect; Be that radio and television services are made rational planning for, the important evidence of science decision.Develop rapidly along with radio and television services, except need be the huge broadcast television monitoring station of quantity be set up in big or middle city, also need " blind area " of urban fringe, in/small city, county, regional and outlying below at county level, borderland, high mountain or need the region of all weather surveillance to set up the distributed monitoring station of a greater number, and form the broadcast television monitoring net of wide area by the wire/wireless transmission.And the minimized embedded type broadcast television monitoring direction measuring system is the optimal selection at distributed monitoring station.
Summary of the invention
The present invention proposes the minimized embedded type broadcast television monitoring direction measuring system, be intended to solve special area (" blind area " that covers as radio and television, in/small city, county, following regional and outlying, borderland, high mountain at county level or need the region of all weather surveillance) the problem of broadcast television monitoring direction finding.Can be used for the various basic parameters that influence launch mass and coverage, effect such as medium wave, FM broadcasting and TV signal frequency channel error, field intensity, transmitted bandwidth, modulation degree/modulation, signal power are measured and monitoring supervises in real time, transmit identification is discerned evaluation, find interference or illegal signals and other program in violation of rules and regulations fast, and various interference or illegal signals carried out the direction finding location, in time checked and got rid of, guaranteed broadcast television signal emission and transmission security.
Technical solution of the present invention: first signal output part, secondary signal output that it is characterized in that folding horizontal polar interferometer direction estimation antenna array outwarded winding and closed corresponding the joining of secondary signal input of unit with outward winding first signal input part, the electricity that close the unit of electricity respectively; Corresponding the joining of first signal input part that electricity is outwarded winding the signal output part with the RF amplifier module that close the unit; Corresponding the joining of signal input part of the signal output part of RF amplifier module and plate card type receiver; First corresponding the joining of signal I/O end of the signal output/input of plate card type receiver and embedded computer system, the secondary signal I/O end of embedded computer system and corresponding the joining of output/input of monitoring and direction-finding processing module, the 3rd signal I/O end of embedded computer system and corresponding the joining of signal output/input of remote control module, first corresponding the joining of signal I/O end of the secondary signal output/input of remote control module and hub, the secondary signal I/O end of hub and cable network transport module first signal output/input is corresponding joins, the 3rd signal I/O end of hub and wireless network transmission module first signal output/input is corresponding joins; First corresponding the joining of signal I/O end of the secondary signal output/input of cable network transport module and control centre, corresponding the joining of secondary signal I/O end of the secondary signal output/input of wireless network transmission module and control centre; The output of environmental monitoring alarm module and the signal input part of remote control module join; Corresponding the joining of secondary signal input of first signal output part of monitoring and direction-finding processing module and RF amplifier module, the secondary signal output of monitoring and direction-finding processing module joins with electric the 3rd signal input part that closes the unit of outwarding winding, the UHF five unit horizontal passive monitoring and direction-finding antenna array working frequency range that polarizes is 300MHz-1300MHz, and the VHF five unit horizontal passive monitoring and direction-finding antenna array working frequency range that polarizes is 30MHz-300MHz.Power module interchange, direct current, UPS or solar powered.
Advantage of the present invention: system has realized the long-range of horizontal polarization broadcast television signal and automatic monitoring; Plate card type receiver, embedded computer system, monitoring and direction-finding processing module and network transmission module etc. are integrated in the same cabinet, are equipped with the small foldable linear (antenna) array, compact conformation is light, and it is easy to maintenance that frame is adorned; Networking flexibility can be supported multiple wire/radio network data security transmission; Can realize functions such as radio and television audio-video collection, compressed encoding, autotask monitoring, direction finding location, statistical analysis, differential mode warning.
Description of drawings
Accompanying drawing 1 is an embodiment of the invention electricity theory diagram.
Accompanying drawing 2 is that high and low end electricity is outwarded winding and closed electric theory diagram.
Accompanying drawing 3 is three function RF amplifiers electricity theory diagrams.
Accompanying drawing 4 is that power divider is the structured flowchart of example with the 1:2 distributor.
Accompanying drawing 5 is folding horizontal polar interferometer monitoring and direction-finding antenna array schematic diagrames
Among the figure 1 is folding horizontal polar interferometer monitoring and direction-finding antenna array, the 2nd, the electricity unit, pass of outwarding winding, the 3rd, the RF amplifier module, the 4th, the plate card type receiver, the 5th, the monitoring and direction-finding processing module, the 6th, embedded computer system (Embedded System), the 7th, the environmental monitoring alarm module, the 8th, remote control module, the 9th, hub, the 10th, the cable network transport module, the 11st, wireless network transmission module, the 12nd, power module exchanges, direct current, UPS or solar powered (option), the 13rd, control centre, the 14th, lightning rod, the 15th, UHF five unit horizontal passive monitoring and direction-finding antenna array: the 300MHz-1300MHz that polarizes, the 16th, VHF five unit horizontal passive monitoring and direction-finding antenna array: the 30MHz-300MHz that polarizes.
Embodiment
Contrast accompanying drawing 1, its structure are that first signal output part, secondary signal output of folding horizontal polar interferometer direction estimation antenna array 1 outwarded winding and closed corresponding the joining of secondary signal input of unit with outward winding first signal input part, the electricity that close unit 2 of electricity respectively; Corresponding the joining of first signal input part that electricity is outwarded winding the signal output part with the RF amplifier module 3 that close the unit; Corresponding the joining of signal input part of the signal output part of RF amplifier module and plate card type receiver 4; First corresponding the joining of signal I/O end of the signal output/input of plate card type receiver and embedded computer system 6, the secondary signal I/O end of embedded computer system and corresponding the joining of output/input of monitoring and direction-finding processing module 5, the 3rd signal I/O end of embedded computer system and corresponding the joining of signal output/input of remote control module 8, first corresponding the joining of signal I/O end of the secondary signal output/input of remote control module and hub 9, the secondary signal I/O end of hub and cable network transport module 10 first signal output/input is corresponding joins, the 3rd signal I/O end of hub and wireless network transmission module 11 first signal output/input is corresponding joins; First corresponding the joining of signal I/O end of the secondary signal output/input of cable network transport module and control centre 13, corresponding the joining of secondary signal I/O end of the secondary signal output/input of wireless network transmission module and control centre; The output of environmental monitoring alarm module and the signal input part of remote control module join; Corresponding the joining of secondary signal input of first signal output part of monitoring and direction-finding processing module and RF amplifier module, the secondary signal output of monitoring and direction-finding processing module and electricity the 3rd signal input part that closes the unit of outwarding winding joins.Power module interchange, direct current, UPS or solar powered.
Described folding horizontal polar interferometer monitoring and direction-finding antenna array 1 divides two-layer arrangement (respectively corresponding two frequency ranges) along short transverse.Lower floor is the antenna array of 30～300MHz frequency range, form the circle battle array by the passive orthogonal dipole antennas of five pairs of horizontal positioned (two are about 0.5 meter, the crosswise intersection of dipole of diameter 16mm), about 3 meters of array diameter, oscillator is detachable, and support arm is foldable to parallel with the axis; The upper strata is the antenna array of 300～1300MHz frequency range, forms circle battle array, 1 meter of array diameter by the passive orthogonal dipole antennas of five pairs of horizontal positioned (two are about 0.3 meter, the crosswise intersection of dipole of diameter 16mm).Lightning rod is installed topmost, about 2 meters of antenna total height, antenna impedance is 50 Ω, interface is a N type socket.
Electricity is outwarded winding, and to close unit 2 be to be divided into the low side electricity according to frequency range to outward winding and close unit and the high-end electricity unit, pass of outwarding winding.It is subjected to the control and the power supply of monitoring and direction-finding processing module.Its low and middle-end electricity operating frequency of closing the unit of outwarding winding is 30MHz～300MHz, and inside comprises SW-5/2-ML low side electricity outward winding pass, SPL-1/2 power divider and SPL-1/5 power divider.It is equivalent to a high frequency electronic switch, it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part and 1 self-correcting signal output part, its controlled certain two paths of signals passage (being divided into main road, bypass) and self-correcting signalling channel of getting through simultaneously.The SPL-1/2 power divider is that the self-correcting signal is divided into two-way, and wherein one the tunnel is divided into 5 the tunnel through the SPL-1/5 power divider again, introduces the low side electricity pass of outwarding winding, and is used for the system of 30MHz～300MHz wave band work is carried out self-correcting; Another road self-correcting signal is sent to high-end electricity and outwards winding and close in the unit, is used for the self-correcting of high band system.The high-end electricity operating frequency of closing the unit of outwarding winding is 300MHz～1300MHz, and inside comprises that the high-end electricity of SW-5/2-MH is outwarded winding and closes and the SPL-1/5 power divider.It also is a high frequency electronic switch, and it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part, its controlled certain two paths of signals passage (being divided into main road, bypass) and self-correcting signalling channel of getting through simultaneously.Outward winding from the low side electricity and to close the road self-correcting signal of telling the unit and behind the SPL-1/5 power divider, be divided into 5 the tunnel, be used for the system of 300MHz～1300MHz frequency range work is carried out self-correcting.Its operation principle: when control voltage V1, V2 power up, during diode D1～D3 conducting, signal from antenna 1 just can pass to node A, when control voltage V2, V3 power up, during diode D4～D6 conducting, the self-correcting signal just can pass to node A, when control voltage V4, V5 power up, during diode D7～D9 conducting, the signal of node A just can be exported from main road; When control voltage V6, V7 power up, during diode D10～D12 conducting, the signal of node A just can be exported from auxiliary route; As shown in Figure 2.
RF amplifier module 3 comprises two low noise three function amplifiers, and operating frequency is 30MHz～1300MHz, has amplification, straight-through, three kinds of functions of decay, in use according to actual needs by software set.Respectively the main and auxiliary road signal that closes unit 2 of outwarding winding from electricity is handled.They respectively have 1 control/feeder ear, 1 input, 1 output.Amplifier is made up of first high frequency relay, second high frequency relay, amplifying circuit, attenuator circuit and power supply, the amplifier tube (model ERA-51SM) in high frequency relay (model RF303-12), the amplifier.+ 12V power supply is added to respectively on first high frequency relay and second high frequency relay by software control.When first high frequency relay powers up, and second high frequency relay is not when powering up, and input signal obtains linear amplification behind amplifying circuit, again through the straight-through part output of second high frequency relay.Be " amplification ".When first high frequency relay does not power up, and second high frequency relay is when powering up, and input signal arrives the attenuator circuit of second high frequency relay after the straight-through part of first high frequency relay, output after decaying.Be " decay ".When first high frequency relay and second high frequency relay did not power up, input signal was through the straight-through part output of first high frequency relay and second high frequency relay.Be " leading directly to ".So this amplifier has " lead directly to, amplify, decay " three functions.
Plate card type receiver 4 is made up of two plate card type direction-finding receivers (J0601).Signal from RF amplifier module 3 is carried out frequency conversion, demodulation, decoding (can monitor measurement to the signal of different frequency domains, modulation domain, time domain), and output comprises the digital monitoring information of frequency, amplitude, frequency deviation, percentage modulation bandwidth, level, spectral image etc. and comprises signal phase and the digital direction-finding signal of amplitude characteristic.It is by serial ports and computer communication.Select the digital direction-finding receiver of J0601 of Jiujiang City, Jiangxi Province 713 factories in the present embodiment for use, this receiver is a plate card type, adopts pci bus structure and modularized design, and a template is exactly a receive path, adopts the two boards card can form double-channel.The receiver template can be inserted in the computer that has the PCI slot, fixes with press strip, constitutes the virtual instrument platform of advanced embedded receiver computer combined.
Described monitoring and direction-finding processing module 5 (model is DFC 050E) is system's each several part control drive unit and dc power supply unit.Processing module is carried out communication by interface and embedded computer system 6, accepts the control command of computer, electricity is outwarded winding closed unit, RF amplifier module, direction-finding receiver etc. and control, and system is monitored and direction finding according to software program.
Described embedded computer system 6.Built-in embedded computer is the ARK-3380 that grinds magnificent company, and software is cured in the embedded computer, thereby the reliability of equipment operation is enhanced, and volume, power consumption also reduce greatly simultaneously.Hardware " house dog " resets rapidly in the time of can or cutting off the power supply under abnormality and starts to running state of programs fast.Built-in embedded Linux system can be so that systems soft ware kernel capacity reduces greatly, and hardware configuration is reduced to appropriateness.Application software is the DESCO DF7.0 version intelligent monitoring direction finding software of my company's maturation, and it has complete investigation function and signal analysis and processing function.This computer system is except executive program (comprise storage, print), also lot of data, audio frequency, video etc. are handled, it is by carrying out complicated statistic algorithm (as auto-correlation algorithm, phase detection algorithm, HILBERT conversion, fft algorithm) to the information data of a large amount of collections, thereby draws the orientation of signal.
Described environmental monitoring alarm module 7, be partly to form by network video server (model is DS-6001HC, is used to transmit image scene), colour imagery shot (model is a Samsung 101), Temperature Humidity Sensor (model is JWSL-3W), smoke alarm (model is BT-168A), Infrared intrusion detector (model is BT-922R) etc.Operating state, equipment connection status, ambient condition to the monitoring station are monitored, and by transmission link with Monitoring Data such as environment, operating states with by camera the image of telemonitoring is delivered to control centre and monitor.To in time report to the police if any unusual (containing theft, fire alarm etc.).
Described remote control module 8, by compositions such as data acquisition unit (AD collection, fetch equipment power-on and power-off situation and the voltage data etc. that are used for on-the-spot 220VAC), voltage sensor (model is DYH28-14A, is used for the 220V alternating current is converted into the alternating current of 5V) and relay switches.It accept control command to power supply situation, power-on and power-off, the computer of monitoring station reset, starting of air conditioner etc. carries out information gathering and control.
Contrast accompanying drawing 5, the passive monitoring and direction-finding antenna array 15 that polarizes of UHF five unit horizontal in the folding horizontal polar interferometer monitoring and direction-finding antenna array: working frequency range is 300MHz-1300MHz, the VHF five unit horizontal passive monitoring and direction-finding antenna array 16 that polarizes: working frequency range is 30MHz-300MHz.
For ease of moving and installation and maintenance, exceed the complicated wiring in ground again, only " two of mainframe boxes (built-in plate card type receiver, embedded computer module, monitoring and direction-finding processing module and network transmission module etc.) are partly formed by folding horizontal polar interferometer monitoring and direction-finding antenna array (contain electricity outward winding close unit, RF amplifier module etc.) and miniaturization 19 in this minimized embedded type broadcast television monitoring direction measuring system.Only be formed by connecting between two parts with some control cable and radio frequency cable.
Claims (3)
1. minimized embedded type broadcast television monitoring direction measuring station system, first signal output part, secondary signal output that it is characterized in that folding horizontal polar interferometer direction estimation antenna array are outwarded winding and are closed corresponding the joining of secondary signal input of unit with outward winding first signal input part, the electricity that close the unit of electricity respectively; Corresponding the joining of first signal input part that electricity is outwarded winding the signal output part with the RF amplifier module that close the unit; Corresponding the joining of signal input part of the signal output part of RF amplifier module and plate card type receiver; First corresponding the joining of signal I/O end of the signal output/input of plate card type receiver and embedded computer system, the secondary signal I/O end of embedded computer system and corresponding the joining of output/input of monitoring and direction-finding processing module, the 3rd signal I/O end of embedded computer system and corresponding the joining of signal output/input of remote control module, first corresponding the joining of signal I/O end of the secondary signal output/input of remote control module and hub, the secondary signal I/O end of hub and cable network transport module first signal output/input is corresponding joins, the 3rd signal I/O end of hub and wireless network transmission module first signal output/input is corresponding joins; First corresponding the joining of signal I/O end of the secondary signal output/input of cable network transport module and control centre, corresponding the joining of secondary signal I/O end of the secondary signal output/input of wireless network transmission module and control centre; The output of environmental monitoring alarm module and the signal input part of remote control module join; Corresponding the joining of secondary signal input of first signal output part of monitoring and direction-finding processing module and RF amplifier module, the secondary signal output of monitoring and direction-finding processing module joins with electric the 3rd signal input part that closes the unit of outwarding winding, the UHF five unit horizontal passive monitoring and direction-finding antenna array working frequency range that polarizes is 300MHz-1300MHz, and the VHF five unit horizontal passive monitoring and direction-finding antenna array working frequency range that polarizes is 30MHz-300MHz.
2. minimized embedded type broadcast television monitoring direction measuring station system according to claim 1 is characterized in that described folding horizontal polar interferometer direction estimation antenna array, is divided into upper and lower two-layer arrangement, and corresponding two frequency ranges are arranged along short transverse; Lower floor is the low side antenna array, and working frequency range is 20MHz～1000MHz, forms antenna circle battle array by five pairs of active Vertically Polarized Dipoles that are about 300mm, diameter 16mm, and array diameter 1000mm is foldable to parallel with the axis; The upper strata is high-end antenna array, and working frequency range is 1000MHz～3000MHz, forms antenna circle battle array, array diameter 300mm by five pairs of active Vertically Polarized Dipoles that are about 150mm, diameter 17mm; Lightning rod is installed topmost, antenna total height 1200mm, impedance is 50 Ω, interface is a N type socket.
3. minimized embedded type broadcast television monitoring direction measuring station system according to claim 1, it is characterized in that electricity is outwarded winding closes the unit frequency range and is divided into the low side electricity and outwards winding and close unit and the high-end electricity unit, pass of outwarding winding, its low and middle-end electricity operating frequency of closing the unit of outwarding winding is 20MHz～1000MHz, inside comprises the SW-5/2-ML low side electricity pass of outwarding winding, SPL-1/2 power divider and SPL-1/5 power divider, be equivalent to a high frequency electronic switch, it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part and 1 self-correcting signal output part, the controlled main road of getting through simultaneously, bypass two paths of signals passage and self-correcting signalling channel; Wherein the SPL-1/2 power divider is that the self-correcting signal is divided into two-way, and wherein one the tunnel is divided into 5 the tunnel through the SPL-1/5 power divider again, introduces the low side electricity pass of outwarding winding, and the system of 20MHz～1000MHz wave band work is carried out self-correcting; Another road self-correcting signal is sent to high-end electricity and outwards winding and close in the unit, is used for the self-correcting of high band system; The high-end electricity operating frequency of closing the unit of outwarding winding is 1000MHz～3000MHz, inside comprises that the high-end electricity of SW-5/2-MH is outwarded winding and closes and the SPL-1/5 power divider, it is a high frequency electronic switch, it has 5 signal input parts, 2 signal output parts, 1 control/power supply port, 1 self-correcting signal input part, its controlled main road, bypass two paths of signals passage and self-correcting signalling channel of getting through simultaneously, outward winding from the low side electricity and to close the road self-correcting signal of telling the unit and behind the SPL-1/5 power divider, be divided into 5 the tunnel, the system of 1000MHz～3000MHz frequency range work is carried out self-correcting.
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| CN200810196487XA CN101365146B (en) | 2008-09-10 | 2008-09-10 | Minimized embedded type broadcast television monitoring direction measuring station system |
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| CN200810196487XA CN101365146B (en) | 2008-09-10 | 2008-09-10 | Minimized embedded type broadcast television monitoring direction measuring station system |
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| CN101365146B true CN101365146B (en) | 2010-09-29 |
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| CN105827302A (en) * | 2016-05-19 | 2016-08-03 | 桂林市思奇通信设备有限公司 | Remotely monitored terrestrial digital television repeater |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900734A (en) * | 2006-07-10 | 2007-01-24 | 俞文蕴 | Vertical polarized single channel full digital radio monitoring and relative interference direction finding moving station |
| CN200997447Y (en) * | 2006-12-21 | 2007-12-26 | 成都九华圆通科技发展有限公司 | Integrated radio monitoring direction-finding antenna |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1900734A (en) * | 2006-07-10 | 2007-01-24 | 俞文蕴 | Vertical polarized single channel full digital radio monitoring and relative interference direction finding moving station |
| CN200997447Y (en) * | 2006-12-21 | 2007-12-26 | 成都九华圆通科技发展有限公司 | Integrated radio monitoring direction-finding antenna |
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Assignee: Nanjing Developing Electronic System Co., Ltd. Assignor: Yu Weiquan Contract record no.: 2011320000167 Denomination of invention: Minimized embedded type broadcast television monitoring direction measuring station system Granted publication date: 20100929 License type: Exclusive License Open date: 20090211 Record date: 20110307 |
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