CN102340364B - Broadcast message receiving equipment and method - Google Patents
Broadcast message receiving equipment and method Download PDFInfo
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- CN102340364B CN102340364B CN201010239391.4A CN201010239391A CN102340364B CN 102340364 B CN102340364 B CN 102340364B CN 201010239391 A CN201010239391 A CN 201010239391A CN 102340364 B CN102340364 B CN 102340364B
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Abstract
The present invention proposes a kind of Big Dipper broadcast SMS receiving equipment based on Beidou communication system and method.Described Big Dipper broadcast SMS receiving equipment comprises: receiving system, for receiving the short message from the broadcast of Beidou communication satellite reception; Storage device, for storing the identification number of described information broadcasting commander machine, for determining commander's machine that described broadcast SMS receiving equipment belongs to; Beidou communication processing unit, for when control device confirms that the described short message that receiving system receives belongs to described short message receiving receiving unit, processes received short message; And control device, for controlling, the identifier in the mark of the short message received and storage device is identified, and for controlling described Beidou communication processing unit, the short message received is processed.Utilize according to Big Dipper broadcast SMS receiving equipment of the present invention and method, the research and development difficulty of the product of Big Dipper broadcast SMS receiving equipment and cost are greatly reduced for Big Dipper common user machine, also can not limit the quantity of Big Dipper broadcast SMS receiving system simultaneously.
Description
Technical field
The present invention relates to satellite radio information broadcasting and reception field, particularly, relate to a kind ofly carry out the method for information broadcasting by Beidou communication satellite system, method that broadcast message receives and receiving terminal apparatus.
Background technology
Along with the successful launch of No. one, China's Big Dipper, the Big Dipper No. two navigator fix communication satellites, various associated navigation, location, communication equipment are are in succession researched and developed and release.Compared with the GPS Position Fixing Navigation System of international popular, the BDStar navigation system of China not only has the function of location navigation equally, and possesses the function sent SMS message by big-dipper satellite, and this feature is that gps system is not incomparable yet.Also utilize this feature just, domestic development & production goes out multiple location, the navigator that can receive and dispatch short message, and is applied in the many-side such as military, civilian.Such as Big Dipper subscriber computer of Divine Land Tian Hong company research and development is delivered in relays in Olympic Games process at torch Mount Everest in 2008, play a role in the unattended operation weather station of multiple differing heights respectively, 24 hours every days monitor full time weather condition, and related data is sent back base camp and national weather general bureau by big-dipper satellite, provide meteorological guarantee for the Olympic torch is successfully completed Mount Everest relay.On May 12nd, 2008, when Wenchuan County in Sichuan generation special violent earthquake, when all electric power in disaster area, communications facility are all destroyed and are paralysed, be that first Sichuan Province forest People's Armed Police uses the Big Dipper hand-held set information in disaster area to be sent out by big-dipper satellite, and played huge effect in follow-up earthquake relief work process.
In addition, Beidou satellite system also has a kind of typical application.As shown in Figure 1, struggle against one number service type subscriber computer (hereinafter referred to as subscriber computer by struggle against commander's machine and some Taibei, a Taibei, comprise Big Dipper vehicle-mounted machine, a Big Dipper hand-held set etc.) a composition communication commanding system, this system has the feature of following several respects: 1) these subscriber computers are by writing in the IC-card in the machine by (as the logical number of broadcasting) for information about of this commander's machine, this commander's machine is by writing in the IC-card in this commander machine by (as No. ID) for information about of these subscriber computers, thus the commander this commander's machine and these subscriber computers being formed be subordinate to and by command relation, 2) subscriber computer and subscriber computer, can mutually carry out " point-to-point " short message communication between commander's machine and subscriber computer, 3) when subscriber computer and subscriber computer carry out mutually short message communication, commander's machine can supervise the short message receiving and occur between subscriber computer, 4) machine of commanding can pass through the mode of " logical broadcast (namely broadcasting) ", and to all subordinate's subscriber computer transmission information, these subscriber computers be subordinate to can receive logical that commander's machine sends simultaneously and broadcast information.
But for so logical broadcast system, commander's machine can only manage 100 (being no more than at most 500) subscriber computers usually.The equipment of short message is not also received only in addition specially in big-dipper satellite ground terminals all at present.Compared with above-mentioned Big Dipper subscriber computer, these subscriber computers are just defined as to locate, navigate as master when designing, and have short message communication function concurrently, so the hardware composition of subscriber computer not only will have receiving unit, also must have radiating portion; In software, these subscriber computers not only will have signal capture, tracking, text to resolve function, also must have the functions relevant to location navigation such as Coordinate Conversion, exceed a lot so the research and development of equipment and manufacturing cost are all corresponding, the volume of equipment, energy consumption are also corresponding larger simultaneously.In addition, above-mentioned Big Dipper commander machine can only manage limited subscriber computer, can not send SMS message in a broadcast manner to the Big Dipper terminal equipment of thousands of (quantity is not limit) simultaneously.
Summary of the invention
The object of the invention is to overcome the high defect of the bulky cost of existing Beidou subscriber machine, propose a kind of for based on the broadcast SMS receiving equipment of Beidou communication satellite system and method for reseptance thereof.
According to a first aspect of the invention, propose a kind of broadcast SMS receiving equipment based on Beidou communication system, described Beidou communication system comprises Beidou communication satellite, information broadcasting commander machine, ground satellite station and broadcast SMS receiving equipment, it is characterized in that described broadcast SMS receiving equipment comprises: receiving system, for receiving the short message from the broadcast of Beidou communication satellite reception; Storage device, for storing the identification number of described information broadcasting commander machine, for determining commander's machine that described broadcast SMS receiving equipment belongs to; Beidou communication processing unit, for when control device confirms that the described short message that receiving system receives belongs to described short message receiving receiving unit, processes received short message; And control device, for controlling, the identifier in the mark of the short message received and storage device is identified, and for controlling described Beidou communication processing unit, the short message received is processed.
Preferably, the identification number of described information broadcasting commander machine is its logical number of broadcasting.
Preferably, for different information broadcastings commander machine, the different logical numbers of broadcasting is set in described recognition device.
Preferably, described short message comprises information category mark, the information category mark that the different field content interested to receiver is corresponding different respectively.
Preferably, described Beidou communication processing unit comprises: reception antenna, low noise amplifier, receive path frequency converter, receive path baseband processing circuitry part, wherein said reception antenna receives Big Dipper RDSS satellite-signal, its receive frequency range is 2491.75 ± 4.08MHz, adopts right-handed circular polarization mode; Described low noise amplifier performs and amplifies the small-signal sent from described reception antenna; Received input signal is converted to intermediate-freuqncy signal by described receive path frequency converter; And described receive path baseband processing unit, complete RDSS base band signal process function.
According to a second aspect of the invention, propose a kind of broadcast SMS method of reseptance based on Beidou communication system, described Beidou communication system comprises Beidou communication satellite, information broadcasting commander machine, ground satellite station and Big Dipper broadcast message receiving equipment, it is characterized in that described broadcast SMS method of reseptance comprises: the information that needs are issued is issued Beidou communication satellite by information broadcasting commander machine; Described information is forwarded back to ground satellite station by Beidou communication satellite; Ground satellite station beams back Beidou communication satellite after carrying out relevant treatment to described information again; Described information is broadcasted to all Big Dipper ground receiver terminals in the mode of " lead to and broadcast " by Beidou communication satellite; Described Big Dipper broadcast message receiving equipment processes the broadcast message received according to the logical number of broadcasting.
Preferably, described Big Dipper broadcast message receiving system is by commanding the logical number of broadcasting of machine described in recognition device identification.
Preferably, described Beidou communication processing unit, when recognition device confirms that described short message belongs to described short message receiving receiving unit, processes received short message.
Preferably, big-dipper satellite uses information described in six beam broadcast simultaneously.
Preferably, described short message comprises information category mark, the information category mark that the different field content interested to receiver is corresponding different respectively.
A technical scheme in technique scheme has following beneficial effect: (1) only has receive path, and does not have transmission channel, and the research and development difficulty of product and cost greatly reduce; (2) No. ID of IC-card and equipment is not had; (3) need the broadcast message receiving that commander's machine, just " the logical number of broadcasting " of corresponding commander's machine can be arranged in this receiving system, thus just can receive the broadcast message sent from this commander's machine; (4) identical commander's machine " the logical number of broadcasting " can be arranged in machine by unlimited receiving system, thus realizes unlimited receiver and can receive the broadcast message sent from same commander's machine; (5) receiving system can realize receiving by the mode changing " the logical number of broadcasting " that arrange different commander's machine the object of the broadcast message that different commander's machine is sent; (6) receiving system can by identifying " the information category mark " in the information that receive, thus judge that the information received is the information needed for this receiving system, thus process such as " collection, display, prompting or filtration are abandoned " is made to the information received.
Accompanying drawing explanation
According to following description by reference to the accompanying drawings, advantage of the present invention will become easy to understand, wherein:
Fig. 1 shows existing the logical of Beidou communication system and broadcasts schematic diagram;
Fig. 2 shows and receives schematic diagram according to the short message broadcasting of Beidou communication system of the present invention;
Fig. 3 shows the schematic block diagram according to Beidou communication broadcast message receiving equipment of the present invention;
Fig. 4 shows the further detailed schematic block diagram according to Beidou communication equipment of the present invention; And
Fig. 5 shows the flow chart of the broadcast message reception method according to Beidou communication equipment of the present invention.
Embodiment
There is provided detailed reference to embodiments of the invention now.For explaining that the present invention will be described with reference to the drawings following embodiment.
Consider the current situation and characteristic that China's Beidou satellite system and ground terminal are applied at present, the object of the invention is to utilize Beidou satellite system to have the feature of short message communication, propose the Apparatus and method for of a kind of new information broadcasting and reception, and corresponding Big Dipper information receiver.
Fig. 2 shows and receives schematic diagram according to the short message broadcasting of Beidou communication system of the present invention.Below with reference to Fig. 2, the process of short message broadcasting and reception is described.As shown in Figure 2, described Beidou communication system comprises Beidou communication satellite, information broadcasting commander machine, ground satellite station and broadcast SMS receiving equipment.Broadcast by a station information platform device that commanding agency becomes information broadcasting, forward platform device by big-dipper satellite and big-dipper satellite ground station as information, by the receiving equipment of unlimited big-dipper satellite broadcast message receiving system as broadcast message.Issue and the receiving course of broadcast message are as follows: first issue big-dipper satellite (as flow process is 1. shown) by information broadcasting machine of commanding by needing the information issued; This information is forwarded back to ground satellite station (as flow process is 2. shown) by big-dipper satellite; Big-dipper satellite (flow process is 3. shown) is beamed back again after ground satellite station carries out relevant treatment to this information; All Big Dipper ground receiver terminals are sent in the mode of " lead to and broadcast " again by big-dipper satellite.Such as, big-dipper satellite can simultaneously with six wave beams 4., carry out information broadcasting in the logical mode broadcast to all Big Dipper ground receiver terminals.Due to " the logical number of broadcasting " of these Big Dipper ground receiver terminals this commander's machine all built-in, so they can receive the broadcast message sent by commander's machine at one time.When described Big Dipper terrestrial information receiving equipment receives the information broadcasted by big-dipper satellite, judged by the built-in logical number of broadcasting: if the logical number of broadcasting of this information belongs to commander's machine of information receiving device, then this information is processed; If the logical number of broadcasting of this information does not belong to commander's machine of information receiving device, then can not this information process.
Compared with existing Beidou subscriber machine, the Big Dipper broadcast message receiving equipment of the embodiment of the present invention has following characteristics: 1) described Big Dipper broadcast message receiving equipment only has receive path, and there is no transmission channel, so the research and development difficulty of the product of this broadcast message receiving equipment and cost are greatly reduced compared with existing Big Dipper common user machine; 2) there is no No. ID of IC-card and equipment in described Big Dipper broadcast message receiving equipment, reduce volume, and then saved cost; 3) if need the broadcast message receiving that station information broadcast commander machine, " the logical number of broadcasting " that just corresponding information can be broadcasted commander's machine is arranged in this broadcast message receiving equipment, thus just can receive the broadcast message sent from this information broadcasting commander machine; 4) embodiments of the invention can not limit the quantity of receiving system, identical commander's machine " the logical number of broadcasting " can be arranged in different broadcast message receiving equipment machines, thus realize unlimited receiver and can receive the broadcast message sent from same commander's machine; 5) broadcast message receiving equipment can realize the object that can receive the broadcast message that different commander's machine is sent by the mode of " the logical number of broadcasting " that change different commander's machine; 6) receiving system can also by identifying " the information category mark " in the information that receive, thus judge the information that receives whether this information needed for broadcast message receiving unit, thus process such as " collection, display, promptings or filter abandon " is made to the information received.
Fig. 3 shows the schematic block diagram according to Beidou communication broadcast message receiving equipment of the present invention.As shown in Figure 3, described broadcast SMS receiving equipment comprises: receiving system, for receiving the short message from the broadcast of Beidou communication satellite reception; Storage device, for storing the identification number of described information broadcasting commander machine, for determining commander's machine that described broadcast SMS receiving equipment belongs to; Beidou communication processing unit, for when control device confirms that the described short message that receiving system receives belongs to described short message receiving receiving unit, processes received short message; And control device, for controlling, the identifier in the mark of the short message received and storage device is identified, and for controlling described Beidou communication processing unit, the short message received is processed.It will be appreciated by one skilled in the art that described storage device is not limited to location identifier, can also be used for storing the short message, information category mark etc. that receive.
Fig. 4 shows the further detailed schematic block diagram according to Beidou communication equipment of the present invention.As shown in Figure 4, broadcast message receiving equipment (100) based on Beidou satellite system comprising: reception antenna (101), low noise amplifier (LNA) (102), receive path frequency changer circuit part (103), receive path baseband processing circuitry part (104), control treatment part (105), display (106), keyboard and handwriting input part (107) and the part such as communication interface (108) and power supply (109).Described reception antenna (101) receives Big Dipper RDSS satellite-signal, and its receive frequency range is 2491.75 ± 4.08MHz, adopts right-handed circular polarization mode.Described low noise amplifier (102), perform and the small-signal sent from antenna is amplified, be beneficial to subsequent treatment, and reduce the introducing of noise signal as much as possible, its operating frequency range is 2491.75 ± 4.08MHz, features such as requiring that it has suitable gain simultaneously, good gain flatness, noise factor are little, Out-of-band rejection ability is strong.Wherein said receive path frequency changer circuit carries out down-conversion the signal received, and is converted to 12.24MHz intermediate-freuqncy signal.Intermediate frequency variable gain amplifier (VGA) and low pass filter (LPF) complete step gain and control, and variable gain amplifier (VGA) has the function of gain accurate adjustment between I/Q link.By built-in automatic growth control (AGC) loop, the difference peak-to-peak value of output signal level can be remained within the scope of needs.Digital medium-frequency signal after receive path frequency changer circuit both can provide analog if signal also can provide quantification.
Described receive path baseband processing circuitry (104) comprises multiple independently digital received passage, completes the functions such as RDSS base band signal process, comprising:
1) digital quadrature demodulation, obtains orthogonal double channels baseband signal;
2) there is the function of fast Acquisition satellite-signal;
3) each receive path pseudo-code essence of completing 1 wave beam qpsk modulation signal with, carrier auxiliary, pseudo range measurement and despread-and-demodulation, Q branch road GOLD code first phase automatic pre-set, carrier-to-noise ratio is estimated, and the Viterbi decoding of I, Q two branch roads;
4) there is Big Dipper signal resolve and protocol processes function, can identify and extract the communication information;
5) there is the function explained and perform by data-interface input instruction;
6) have a second signal (1pps), second temporal information output function;
7) there is SPI/UART data-interface;
8) built-in SRAM memory.
Described control treatment part (105) performs display, keyboard and handwriting input respectively, the driving of communication interface and management, information interaction is carried out by User Interface that display shows and user, information is shown to user, accept the instruction that user sends, and according to the instruction of user, the broadcast message received is consulted, preserves, the management such as deletion, or pass through communication interface, the broadcast message received is transferred in other equipment (as computer etc.), also according to the demand of user, the state of this equipment can be arranged simultaneously.Display (106) wherein completes information display function, data storage (107) completes the broadcast message received and the function stored the parameter set by user, and user sends instruction by keyboard or hand input device (108) to this equipment or carries out optimum configurations.Described communication interface (109) is the passage that this equipment and miscellaneous equipment (as computer) carry out exchanges data and transfer.
Fig. 5 shows the flow chart of the broadcast message reception method according to Beidou communication equipment of the present invention.Beidou communication system comprises Beidou communication satellite, information broadcasting commander machine, ground satellite station and Big Dipper broadcast message receiving equipment.As shown in Figure 5, described broadcast SMS method of reseptance comprises: the information that needs are issued is issued Beidou communication satellite by information broadcasting commander machine; Described information is forwarded back to ground satellite station by Beidou communication satellite; Ground satellite station beams back Beidou communication satellite after carrying out relevant treatment to described information again; Described information is broadcasted to all Big Dipper ground receiver terminals in the mode of " lead to and broadcast " by Beidou communication satellite; Described Big Dipper broadcast message receiving equipment processes the broadcast message received according to the logical number of broadcasting.
Wherein, described Big Dipper broadcast message receiving system is by commanding the logical number of broadcasting of machine described in recognition device identification.Described Beidou communication processing unit, when recognition device confirms that described short message belongs to described short message receiving receiving unit, processes received short message.Big-dipper satellite uses information described in six beam broadcast simultaneously.Described short message comprises information category mark, the information category mark that the different field content interested to receiver is corresponding different respectively.
Will broadcast message receiving equipment according to the present invention compared with existing Big Dipper time service terminal, although both only there is receive path, not there is transmission channel and emission function, the broadcast message receiving equipment based on Beidou satellite system mentioned by the present invention and method " there is following beneficial effect: not only have a second signal (1pps), second temporal information output function, what is more important can receive the broadcast message that specific commander's machine is sent; There is the function of the broadcast message received being carried out to reprocessing, as preservation, display, deletion, transfer etc.
One of ordinary skill in the art will appreciate that: the hardware that the whole or unit step in enforcement above-described embodiment method can carry out instruction relevant by program has come, described program can be stored in computer-readable recording medium, performs the method according to the embodiment of the present invention when performing this program.Wherein, described storage medium can be the storage mediums such as ROM/RAM, disk, CD.
Although illustrate and describe some embodiments of the present invention, but those of ordinary skill in the art are to be understood that, when not departing from the principle and scope of the present invention that claims and equivalent thereof limit, change can be made in above embodiment.
Claims (7)
1. the broadcast SMS receiving equipment based on a Big Dipper navigator fix communication system, described Big Dipper navigator fix communication system comprises Beidou communication satellite, information broadcasting commander machine, ground satellite station and broadcast SMS receiving equipment, it is characterized in that described broadcast SMS receiving equipment comprises:
Receiving system, for receiving the short message from the broadcast of Beidou communication satellite reception;
Storage device, for storing the identification number of described information broadcasting commander machine, for determining commander's machine that described broadcast SMS receiving equipment belongs to;
Beidou communication processing unit, for when control device confirms that the described short message that receiving system receives belongs to described broadcast SMS receiving equipment, processes received short message; And
Control device, identifies the identifier in the mark of the short message received and storage device for controlling, and processes the short message received for controlling described Beidou communication processing unit,
Wherein the receive frequency range of a Big Dipper navigator fix communication system is 2491.75 ± 4.08MHz, adopts right-handed circular polarization mode, and the identification number of described information broadcasting commander machine is the logical number of broadcasting of information broadcasting commander machine.
2. the broadcast SMS receiving equipment based on a Big Dipper navigator fix communication system according to claim 1, is characterized in that: for different information broadcastings commander machine, arrange the different logical numbers of broadcasting in described control device.
3. the broadcast SMS receiving equipment based on a Big Dipper navigator fix communication system according to claim 1, it is characterized in that: described short message comprises information category mark, the information category mark that the different field content interested to receiver is corresponding different respectively.
4. the broadcast SMS receiving equipment based on a Big Dipper navigator fix communication system according to claim 1, it is characterized in that: described Beidou communication processing unit comprises: reception antenna, low noise amplifier, receive path frequency converter, receive path baseband processing circuitry part, wherein
Described reception antenna receives Big Dipper RDSS satellite-signal;
Described low noise amplifier performs and amplifies the small-signal sent from described reception antenna;
Received input signal is converted to intermediate-freuqncy signal by described receive path frequency converter; And
Described receive path baseband processing unit, completes RDSS base band signal process function.
5. the broadcast SMS method of reseptance based on a Big Dipper navigator fix communication system, described Big Dipper navigator fix communication system comprises Beidou communication satellite, information broadcasting commander machine, ground satellite station and Big Dipper broadcast message receiving equipment, it is characterized in that described broadcast SMS method of reseptance comprises:
Information broadcasting commander machine issues Beidou communication satellite by needing the information issued;
Described information is forwarded back to ground satellite station by Beidou communication satellite;
Ground satellite station beams back Beidou communication satellite after carrying out relevant treatment to described information again;
Described information is broadcasted to all Big Dipper broadcast message receiving equipments in the mode of " lead to and broadcast " by Beidou communication satellite;
Described Big Dipper broadcast message receiving equipment processes the broadcast message received according to the logical number of broadcasting: described Big Dipper broadcast message receiving equipment is by commanding the logical number of broadcasting of machine described in recognition device identification, when recognition device confirms that described short message belongs to described Big Dipper broadcast message receiving equipment, by Beidou communication processing unit, received short message is processed
Wherein the receive frequency range of a Big Dipper navigator fix communication system is 2491.75 ± 4.08MHz, adopts right-handed circular polarization mode, and the identification number of described information broadcasting commander machine is the logical number of broadcasting of information broadcasting commander machine.
6. the broadcast SMS method of reseptance based on a Big Dipper navigator fix communication system according to claim 5, is characterized in that big-dipper satellite uses information described in six beam broadcast simultaneously.
7. the broadcast SMS method of reseptance based on a Big Dipper navigator fix communication system according to claim 5, it is characterized in that: described short message comprises information category mark, the information category mark that the different field content interested to receiver is corresponding different respectively.
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| CN201010239391.4A CN102340364B (en) | 2010-07-29 | 2010-07-29 | Broadcast message receiving equipment and method |
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| CN201010239391.4A CN102340364B (en) | 2010-07-29 | 2010-07-29 | Broadcast message receiving equipment and method |
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| CN102594508B (en) * | 2012-02-28 | 2017-09-22 | 厦门雅迅网络股份有限公司 | The data transmission method received and dispatched for Big Dipper RDSS texts |
| CN103260153B (en) * | 2012-05-07 | 2015-07-15 | 中国交通通信信息中心 | Satellite communication service system |
| CN103260160B (en) * | 2012-05-07 | 2016-09-21 | 中国交通通信信息中心 | RDSS user authen method based on satellite communications services |
| CN103152698B (en) * | 2012-12-12 | 2016-09-28 | 张�杰 | Multi-mode broadcast short message receives equipment and method |
| CN103278823B (en) * | 2013-04-24 | 2014-12-17 | 深圳北斗位途信息科技有限公司 | Position sharing method and ground processing device based on Beidou satellite |
| CN103401604B (en) * | 2013-08-23 | 2016-08-10 | 浙江圆融科技有限公司 | A kind of system realizing collective broadcast of beidou satellite communication short-messages |
| CN103442395B (en) * | 2013-08-26 | 2016-02-24 | 北京车网互联科技股份有限公司 | A kind of Big Dipper data Transmission system based on connection pool and method thereof |
| CN103886728B (en) * | 2014-02-11 | 2016-04-27 | 浙江圆融科技有限公司 | A kind of air defense warning system instruction distribution method based on the communication of Big Dipper short message |
| CN103926592B (en) * | 2014-04-08 | 2016-08-17 | 惠州市北斗应用技术支持中心 | A kind of implementation method of Big Dipper RD communication virtual command machine |
| CN108398700A (en) * | 2018-01-19 | 2018-08-14 | 重庆九洲星熠导航设备有限公司 | A kind of high-accuracy position system and method based on Big Dipper short message |
| CN108802777B (en) * | 2018-06-12 | 2020-12-11 | 北京机械设备研究所 | Vehicle-mounted command control method based on Beidou |
| CN109450517B (en) * | 2018-08-10 | 2021-11-16 | 泰斗微电子科技有限公司 | RDSS communication transmission control method and system |
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