CN1901381A - DMB receiver and its position information providing method - Google Patents
DMB receiver and its position information providing method Download PDFInfo
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- CN1901381A CN1901381A CNA2005100358722A CN200510035872A CN1901381A CN 1901381 A CN1901381 A CN 1901381A CN A2005100358722 A CNA2005100358722 A CN A2005100358722A CN 200510035872 A CN200510035872 A CN 200510035872A CN 1901381 A CN1901381 A CN 1901381A
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Abstract
This invention relates to a digital multimedia broadcast DMB receiver and a method for providing its position information, in which, the DMB receiver includes a DMB receiving unit receiving satellite and ground broadcast signals, a radio communication module, a CPU processing received multimedia or DMB received software and radio communication software and an I/O device, in which, said radio communication module is installed in the DMB receiver to provide the position information of the receiver. The providing method includes: mounting a DMB receiver with a radio communication unit to receive position information from the radio communication base station and judging it to update and output necessary information of users.
Description
Technical field
(Digital Multimedia Broadcasting: system DMB) more particularly, relates to the invention that can provide the DMB of positional information receiver and positional information thereof that method is provided to the present invention relates to DMB.
Background technology
Because the radio broadcasting of using now is analog form, be originally to developing in the fixed-site received signal, so, when in gait processes or in the vehicle operating process during received signal, tonequality is very bad, like this, just needs high output and wide frequency bandwidth.
In order to solve described problem, in the All Around The World scope, extensively carrying out the standardization and the commonly usedization research of digital audio broadcasting.In the Europe of adopting Eureka-147 as the digital audio broadcasting standard, use DAB (Digital Audio Broadcasting: digital audio broadcasting), the U.S. uses DAR (Digital Audio Radio: digital audio broadcasting), Canada uses DRB (Digital Radio Broadcasting: digital radio broadcasting), international electrical equipment communication association (ITUR) uses DSB (Digital Sound Broadcasting: digital audio is broadcasted), domestic use DMB (Digital Multimedia Broadcasting: DMB).
Characteristics as the DAB of novel broadcasting exploitation are: even intown electric wave environment and noise are very big, utilize little output to transmit, on the vehicle of advancing at a high speed, also can receive the tonequality of CD level.And, the notion of existing " broadcasting of listening " is extended to the notion of " broadcasting of seeing and listening " and radio broadcasting, except music broadcast, can also transmit various multimedia messagess such as news, transport information, weather information, geographical location information, animated image information by literal and picture.
On the other hand, the DMB of domestic information communication section name, promptly, DMB is along with the digital development of sound radio, surmounted AM and FM radio form in the past, can provide tonequality, literal or the picture of high-quality CD level with 1.5Mbit/s, or even the several data service that transmits of the data of animated image, be the novel broadcasting with both sides tropism's characteristics and outstanding mobile receiving quality.
DMB above-mentioned can be divided into surface wave DMB and satellite dmb according to the character of means of transportation medium, and satellite dmb broadcasting can be divided into fixed service and mobile model service again.
Below, with reference to the content of recording and narrating among European Broadcasting Union (EBU) and the ITU-R, the characteristic of this DMB is described.
(1) DMB broadcasting should become and can ensure high-quality digital transmiting means, afterwards 50 in the period of, should continue needs, high-quality sound more than 2 channels etc. should be provided.
(2) they are different with portable DMB, even, should not be affected in the automobile the inside yet, and can received signal.That is, mobile, portable, fixed placement receives and all can realize.
(3) should be able to realize in the regular program transmitting the data channel (PAD:Program Associated Data) of additional information and as data channel (NPAD:NonPAD) service of independent program.In other words, should be able to judge radio, Word message, program etc.
(4) should become compatible each different pieces of information channel capacity, the enhancing of frequency utilization efficiency, transmission capacity and the high system of transmission efficiency.
Therefore, the DMB receiver that receives DMB broadcasting has been released in PDA portable machines such as (Personal Digital Assistant personal digital assistants) in order to enter the commonly usedization stage, by the suitable product of built-in form.
Up to now, in the DMB receiver, also do not have the method that the DMB receiver module can be grasped positional information separately, for this reason, should append module in addition, need to use overhead low orbit mobile-satellite.That is, need to use GPS (Global Position System: global positioning system) satellite.
The characteristics of gps satellite are: if the ground information office of sending sends standard time information to the GPS artificial satellite at a certain time interval, gps satellite will be according to the positional information of self, according to all period interval of setting, the base station delivery time information earthward and the positional information of satellite self.
But, like this, utilize GPS to judge the position, need in the gps satellite more than 3, utilize the temporal information and the diffusion signal that transmit, judge the position of GPS receiver, this brings very big burden for GPS receiver user economically.And, because GPS directly receives satellite, exist in the problem that the shade area can not receive.
Summary of the invention
The present invention its objective is to the user provides a kind of minimizing financial burden, even the location information system of the DMB receiver of location information service also can be provided in the shade area in order to solve described problem.
In order to realize described purpose, according to an aspect of the present invention, a kind of DMB receiver that provides, comprise: the DMB receiving element 11 that receives satellite and ground broadcast signal, wireless communication module 12, CPU13 and I/O device 14 that the multi-medium data that received or DMB receiving software, wireless telecommunications software are handled; Described wireless communication module is installed in the DMB receiver, so that the positional information of receiver to be provided.
Described wireless communication module comprises mobile communication transmission/receiving element.
Described mobile communication transmission/receiving element and DMB receiving element interlock.
If described interlock be exactly mobile communication transmission/receiving element from the mobile communication base station receiving position information, the DMB receiving element is resolved and is exported the database of this positional information correspondence.
Described database provides the information of position correspondence to comprise public's transport information, business information.
According to a further aspect in the invention, the positional information of a kind of DMB receiver that provides provides method, it is characterized in that, comprising:
The step of the DMB receiver of radio communication unit from the wireless communication base station receiving position information is installed;
Whether the database of judging the positional information correspondence of described reception needs updating steps;
If described judged result is to need to upgrade, upgrade by broadcasting channel, the content of this renewal is resolved the step of the information that the output user needs.
DMB receiver provided by the invention and positional information thereof provide method, by in the DMB receiver, wireless communication module being installed, utilize mobile communcations system commonly used, reach the purpose that reduces financial burden, even the effect of location information service also can be provided in the shade area.
Description of drawings
Fig. 1 is the block diagram of DMB receiver of the present invention;
Fig. 2 is the formation schematic diagram at the database of DMB receiving element storage;
Fig. 3 is the schematic diagram of base station information flow process that the DMB receiver of positional information is provided in the present invention;
Fig. 4 is the schematic diagram of location information data storehouse flow process that the DMB receiver of positional information is provided in the present invention;
Fig. 5 is the flow chart that the positional information of DMB receiver of the present invention provides method.
Symbol description
The 11:DMB receiving element
12: wireless communication module
13：CPU
The 14:I/O device
Embodiment
Below, provide the embodiment of method to be elaborated to DMB receiver of the present invention and positional information thereof with reference to the accompanying drawings.
Fig. 1 is the block diagram of DMB receiver of the present invention.
Fig. 1 is the block diagram that the present invention can provide the DMB receiver of positional information, and it comprises: the DMB receiving element 11 that receives satellite and ground broadcast signal; Wireless communication module 12; The CPU13 that the multimedia that receives by described DMB receiving element 11 and wireless communication module 12 or DMB receiving software, wireless telecommunications software are handled; I/O device 14.
Described I/O device 14 comprises output devices such as input units such as keyboard and display, loud speaker etc.
Below, the action of the DMB receiver that constitutes according to described structure is described.
Described DMB receiving element 11 and wireless communication module 12 interlocks, described wireless communication module 12 is resolved by the mobile communication base station location information, if transmit to the DMB receiving element, the DMB receiving element provides the positional information of public's traffic of described positional information correspondence.
Fig. 2 is the formation schematic diagram of the database stored in the DMB receiving element.
Public's traffic location information that the content of database is administered the position with the base station is divided into base station A, B, and C, D ..., corresponding information, the subway station close with the base station, railway station, bus stop etc. are connected.
And, in described database, not only store the positional information of public's traffic, but also business informations such as storage shopping center and eating house.
Fig. 3 is the schematic diagram of base station information flow process that the DMB receiver of positional information is provided in the present invention.
We can learn from Fig. 3, if radio communication unit receives base station information from mobile communication base station, CPU exports after the relevant information of database analysis base station.
Here, what deserves to be mentioned is that output intent is decided by the DMB standard criterion.
Fig. 4 is the schematic diagram of location information data storehouse flow process that the DMB receiver of positional information is provided in the present invention.
Can learn that from Fig. 4 when the content of each existence change, by broadcasting channel new database more, update method is decided by the DMB standard criterion.
Fig. 5 is the flow chart that the positional information of DMB receiver of the present invention provides method.
Below, with reference to Fig. 5, provide the flow process of method to be described in detail to the positional information of DMB receiver of the present invention.At first, the DMB receiver is by radio communication unit, from base station receiving position information (S11).
Judge whether related content changes in the positional information that above-mentioned steps receives, whether more new database (S12).
If the judged result of above-mentioned steps S12 is a new database more, upgrade (S13) by broadcasting channel, utilize the content of upgrading, the information of the database of the position correspondence of DMB receiver is resolved (S14).
Then, with the information of the position correspondence of described parsing to DMB receiver output (S15).
On the other hand,, resolve the information of database of the position correspondence of DMB receiver if the judged result of above-mentioned steps S12 is not need more new database, and with its output (S14, S15).
By described description, those skilled in the art can carry out various change and modification fully in the scope that does not depart from this invention technological thought.
Therefore, the technical scope of this invention is not limited to the content on the specification, must determine its technical scope according to interest field.
Claims (6)
1, a kind of DMB receiver comprises:
Receive the DMB receiving element (11) of satellite and ground broadcast signal, wireless communication module (12), the CPU (13) that the multi-medium data that received or DMB receiving software, wireless telecommunications software are handled, and I/O device (14); It is characterized in that described wireless communication module is installed in the DMB receiver, so that the positional information of receiver to be provided.
2, DMB receiver as claimed in claim 1 is characterized in that,
Described wireless communication module comprises mobile communication transmission/receiving element.
3, DMB receiver as claimed in claim 2 is characterized in that,
Described mobile communication transmission/receiving element and DMB receiving element interlock.
4, DMB receiver as claimed in claim 3 is characterized in that,
If described interlock be exactly mobile communication transmission/receiving element from the mobile communication base station receiving position information, the DMB receiving element is resolved and is exported the database of this positional information correspondence.
5, DMB receiver as claimed in claim 4 is characterized in that,
Described database provides the information of position correspondence to comprise public's transport information, business information.
6, a kind of positional information of DMB receiver provides method, it is characterized in that, comprising: the step of the DMB receiver of radio communication unit from the wireless communication base station receiving position information is installed;
Whether the database of judging the positional information correspondence of described reception needs updating steps;
If described judged result is to need to upgrade, upgrade by broadcasting channel, the content of this renewal is resolved the step of the information that the output user needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100358722A CN1901381A (en) | 2005-07-19 | 2005-07-19 | DMB receiver and its position information providing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2005100358722A CN1901381A (en) | 2005-07-19 | 2005-07-19 | DMB receiver and its position information providing method |
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| Publication Number | Publication Date |
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| CN1901381A true CN1901381A (en) | 2007-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNA2005100358722A Pending CN1901381A (en) | 2005-07-19 | 2005-07-19 | DMB receiver and its position information providing method |
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| CN (1) | CN1901381A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262272B (en) * | 2008-04-25 | 2011-08-10 | 哈尔滨工业大学 | A method for low-track satellite network location update based on joint location area |
-
2005
- 2005-07-19 CN CNA2005100358722A patent/CN1901381A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101262272B (en) * | 2008-04-25 | 2011-08-10 | 哈尔滨工业大学 | A method for low-track satellite network location update based on joint location area |
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