CN101488770B - Data transmission system and method - Google Patents
Data transmission system and method Download PDFInfo
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- CN101488770B CN101488770B CN200910005331A CN200910005331A CN101488770B CN 101488770 B CN101488770 B CN 101488770B CN 200910005331 A CN200910005331 A CN 200910005331A CN 200910005331 A CN200910005331 A CN 200910005331A CN 101488770 B CN101488770 B CN 101488770B
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Abstract
The invention relates to a data transmission system and a data transmission method. The data transmission system comprises a bidirectional signal cable, an antenna, a receiving circuit block and a functional circuit block. The bidirectional signal cable transmits high frequency and low frequency bands. The antenna receives analog data which is transmitted by the high frequency band of the bidirectional signal cable. The receiving circuit block comprises a receiving module and a first control signal processing module. The receiving module receives from the high frequency band by the directional signal cable the analog data which is converted into digital data to a host computer; the first control signal processing module loads the control signals to the low frequency band. The functional circuit block comprises a functional module and a second control signal processing module which is used for retrieving the controls signals in the low frequency band so as to cause that the functional control module regulates the data transmission system according to the control signals.
Description
Technical field
The invention relates to a kind of data transmission system, and particularly relevant for a kind of data transmission system and data transmission method.
Background technology
Data transmission system is widely used particularly wireless data transmission system in people's the life in modern times.The common application such as the reception of satellite TV signal.On computer system, in the framework in order to the data transmission system that receives wireless signal, most important promptly is receiver module, to receive wireless signal from antenna.Set data transmission system on more small-sized computer system such as Barebone or mobile computer; Because system bulk is less; The specification of its chip circuit plate also is defined as less area; If therefore need outside receiver module, increase extra functional circuit, usually can need build on another outer daughter board of motherboard at receiver module place in addition because of area is not enough.Please, be the calcspar of the data transmission system in the known technology 1 with reference to Fig. 1.Data transmission system 1 comprises antenna 10, first cable 12, receiving circuit block 14 and functional circuit block 16.Wherein receiving circuit block 14 and functional circuit block 16 are on the different circuits plate.Receiving circuit block 14 converts numerical data 13 into and transfers to a main frame 18 after receiving the analogue data 11 of coming via antenna 10, first cable 12.Yet; If 16 of main frame 18 and functional circuit blocks need carry out the transmission of control signal 15; Certainly will to set up second cable 12 ' of 16 of another main frame and functional circuit blocks; Overall data transmission system 1 shared space will increase to some extent, concerning the narrow and small computer system in space, be a quite unfavorable cost.
Therefore, how designing a new data transmission system and data transmission method, make in the data transmission system, can under the situation that does not increase space cost, transmit the control signal of functional module, is the industry problem demanding prompt solution.
Summary of the invention
Therefore the object of the present invention is to provide a kind of data transmission system and data transmission method, make in the data transmission system, can under the situation that does not increase space cost, transmit the control signal of functional module.
To achieve these goals, the present invention provides a kind of data transmission system and data transmission method, and wherein data transmission system comprises: two-way signaling cable, antenna, receiving circuit block and functional circuit block.The two-way signaling cable is to transmit high-frequency band and low frequency frequency range, and antenna is in order to receiving an analogue data, and transmits analogue data via the high-frequency band of two-way signaling cable.The receiving circuit block comprises the receiver module and the first control signal processing module, and receiver module receive analogue data from high-frequency band, and the converting analogue data is that numerical data is to main frame through the two-way signaling cable; The first control signal processing module is in order to the low frequency frequency range of Loading Control signal to two-way signaling cable.The functional circuit block comprises the functional module and the second control signal processing module; The second control signal processing module is positioned at the control signal of the low frequency frequency range of two-way signaling cable in order to acquisition, so that functional module is adjusted data transmission system according to control signal.
To achieve these goals, the present invention provides a kind of data transmission system and data transmission method in addition, and wherein data transmission system comprises: two-way signaling cable, antenna, receiving circuit block and functional circuit block.Two-way signaling cable system transmits high-frequency band and low frequency frequency range, and antenna is in order to receiving an analogue data, and transmits analogue data via the high-frequency band of two-way signaling cable.The functional circuit block comprises: the functional module and the second control signal processing module, and functional module is in order to produce control signal; The second control signal processing module is in order to the low frequency frequency range of Loading Control signal to two-way signaling cable; The receiving circuit block comprises: the receiver module and the first control signal processing module, receiver module receive analogue data from high-frequency band, and the converting analogue data are that numerical data is to main frame through the two-way signaling cable; And first the control signal processing module be positioned at the control signal of low frequency frequency range in order to acquisition so that main frame is adjusted data transmission system according to control signal.
To achieve these goals; The present invention provides a kind of data transmission method again; Be used for data transmission system, wherein data transmission system comprises antenna, two-way signaling cable, receiving circuit block and functional circuit block, and the two-way signaling cable connects reception and functional circuit block; Data transmission method comprises the following step: receive analogue data from antenna, and transmit analogue data via the high-frequency band of two-way signaling cable; Receive analogue data through the two-way signaling cable from high-frequency band, and the conversion high-frequency signal is that digital signal is to main frame; Low frequency frequency range from receiving circuit block Loading Control signal to two-way signaling cable; The acquisition of functional circuit block is positioned at the control signal of low frequency frequency range; And data transmission system is adjusted according to control signal.
To achieve these goals; The present invention provides a kind of data transmission method again; Be used for data transmission system, wherein data transmission system comprises antenna, two-way signaling cable, receiving circuit block and functional circuit block, and two-way signaling cable system connects reception and functional circuit block; Data transmission method comprises the following step: receive analogue data from antenna, and transmit analogue data via the high-frequency band of two-way signaling cable; Receive analogue data through the two-way signaling cable from high-frequency band, and the conversion high-frequency signal is that digital signal is to main frame; Low frequency frequency range from functional circuit block Loading Control signal to two-way signaling cable; The acquisition of receiving circuit block is positioned at the control signal of low frequency frequency range; And data transmission system is adjusted according to control signal.
The invention has the advantages that and must extraly not be provided with under the situation of control signal cable, utilize the low frequency band transmissions control signal in the two-way signaling cable of carry high frequency analog signal, and reach above-mentioned purpose easily.
After consulting execution mode graphic and that describe subsequently, this technical field has common knowledge the knowledgeable just can understand the object of the invention, and technological means of the present invention and execution mode.
Description of drawings
For letting above and other objects of the present invention, characteristic, advantage and the embodiment can be more obviously understandable, the explanation of appended accompanying drawing be following:
Fig. 1 is the calcspar of the data transmission system in the known technology;
Fig. 2 is the calcspar of the data transmission system of the first embodiment of the present invention;
Fig. 3 is the calcspar of the data transmission system of the second embodiment of the present invention;
Fig. 4 is the flow chart of the data transmission method of the third embodiment of the present invention; And
Fig. 5 is the flow chart of the data transmission method of the fourth embodiment of the present invention.
[main element symbol description]
1: data transmission system 10: antenna
11: 12: the first cables of analogue data
12 ': the second cable 13: numerical data
14: receiving circuit block 15: control signal
16: functional circuit block 18: main frame
2: data transmission system 20: the two-way signaling cable
21: analogue data 22: antenna
220: low noise block 23: numerical data
24: receiving circuit block 240: receiver module
242: the first control signal processing modules 244: signal buffer
246: the first obstruct DC circuits 25: control signal
26: functional circuit block 260: functional module
261: 262: the second control signal processing modules of power supply
264: the second obstruct DC circuits 28: main frame
3: data transmission system 30: the two-way signaling cable
31: analogue data 32: antenna
33: numerical data 34: the receiving circuit block
340: 342: the first control signal processing modules of receiver module
36: functional circuit block 360: functional module
361: 362: the second control signal processing modules of control signal
363: infrared signal 38: main frame
Embodiment
Please with reference to Fig. 2, be the calcspar of the data transmission system 2 of the first embodiment of the present invention.Data transmission system 2 comprises: two-way signaling cable 20, antenna 22, receiving circuit block 24 and functional circuit block 26.Two-way signaling cable 20 can transmit high-frequency band and low frequency frequency range.Antenna 22 is in order to receive an analogue data 21.Data transmission system 2 is the system for the data that receive satellite TV signal in one embodiment.Therefore, analogue data 21 can be the image data of satellite television.Antenna 22 transmits analogue data 21 via the high-frequency band of two-way signaling cable 20.Receiving circuit block 24 and functional circuit block 26 are to be positioned on the different circuits plate (not illustrating) in the present embodiment, only are connected with a two-way signaling cable 20.Wherein receiving circuit block 24 comprises the receiver module 240 and the first control signal processing module 242.Receiver module 240 receive analogue data 21 from high-frequency band, and converting analogue data 21 is numerical data 23 to main frame 28 through two-way signaling cable 20.In the present embodiment, main frame 28 can produce a control signal 25. Main frame 28 and 242 of the first control signal processing modules also comprise a signal buffer 244, and main frame 28 comes down to see through signal buffer 244 and transmits control signal 25 to first control signal processing modules 242.It is noted that signal buffer 244 is in order to strengthen control signal 25, in other embodiments, if control signal 25 intensity are enough, then can not must to be provided with.After the first control signal processing module 242 receives control signal 25, control signal 25 is loaded on the low frequency frequency range of two-way signaling cable 20, and transmits the other end of two-way signaling cable 20.In the present embodiment, the first control signal processing module 242 is to be formed by inductance element or other coupling circuit, in the low frequency frequency range of control signal 25 coupling (couple) being gone into the signal that two-way signaling cable 20 transmitted.
On the other hand, functional circuit block 26 comprises the functional module 260 and the second control signal processing module 262.The second control signal processing module 262 is in order to the control signal 25 of the low frequency frequency range that captures the first control signal processing module 242 two-way signaling cable 20 that loads.The second control signal processing module 262 is a low pass filter, with the high-frequency band filtering in the signal that two-way signaling cable 20 is transmitted, the control signal 25 that is arranged in the low frequency frequency range is captured.In the present embodiment; The second control signal processing module 262 also can be like the first control signal processing module 242; Be to form, with control signal 25 decoupling zero (decouple) in the low frequency frequency range of the signal that two-way signaling cable 20 is transmitted by inductance element or other coupling circuit.The second control signal processing module 262 further transmits control signal 25 to functional module 260, so that functional module 260 is adjusted according to 25 pairs of data transmission systems 2 of control signal.In the present embodiment, functional module 260 is a power module, is after receiving control signal 25, and a low noise block 220 of antenna 22 is carried out the adjustment of a power supply 261.Through the adjustment of power supply 261, can adjust the receiving angle and the received power of antenna 22.
In the present embodiment; 20 of antenna 22 and two-way signaling cables; And 20 of receiver module 240 and two-way signaling cables; Can comprise first respectively and intercept DC circuit 246 and second and intercept DC circuit 264, with the direct current that intercepts 20 of antenna 22,20 of two-way signaling cables and receiver module 240, two-way signaling cables respectively partly, with the interference of avoiding d-c component to be caused.First and second intercepts DC circuit 246 and 264 can be by capacity cell, or other circuit element that can intercept direct current forms.
The data transmission system of present embodiment can must extraly not be provided with under the situation of control signal cable, utilizes the low frequency frequency range in the two-way signaling cable of carry high frequency analog signal, control signal is transferred to functional module by main frame, to carry out an adjustment.Functional module in fact also can be according to the demand of data transmission system, and does different designs, is not limit by above-mentioned power module.
Please with reference to Fig. 3, be the calcspar of the data transmission system 3 of the second embodiment of the present invention.Data transmission system 3 comprises: two-way signaling cable 30, antenna 32, receiving circuit block 34 and functional circuit block 36.Present embodiment is identical with two-way signaling cable 30 and the antenna 32 of last embodiment, and antenna 32 receives analogue data 31 to be transmitted by two-way signaling cable 30, so do not giving unnecessary details.Functional circuit block 36 comprises the functional module 360 and the second control signal processing module 362, and functional module 360 is in order to produce control signal 361.In the present embodiment, functional module 360 is an infrared receiver, and receiving an infrared signal 363, the infrared signal 363 that is produced like a remote controller (not illustrating) is to produce control signal 361.In another embodiment, functional circuit block 36 can be a switch, produces control signal 361 with the switching according to switch.The second control signal processing module 362 is in order to the low frequency frequency range of Loading Control signal 361 to two-way signaling cable 30.Receiving circuit block 34 comprises: the receiver module 340 and the first control signal processing module 342.Receiver module 340 receive analogue data 31 from high-frequency band, and converting analogue data 31 is numerical data 33 to main frame 38 through two-way signaling cable 30.The first control signal processing module 342 is positioned at the control signal 361 of low frequency frequency range in order to acquisition, so that main frame 38 is adjusted according to 361 pairs of data transmission systems 3 of control signal.In one embodiment, data transmission system 3 is the system of the data that receive satellite TV signal, so control signal 361 can use so that main frame 38 converted channel, or form of control picture or the like.
The data transmission system of present embodiment can must extraly not be provided with under the situation of control signal cable, utilizes the low frequency frequency range in the two-way signaling cable of carry high frequency analog signal, control signal is transferred to main frame by functional module, to carry out an adjustment.Functional module in fact also can be according to the demand of data transmission system, and does different designs, is not limit by above-mentioned infrared receiver and switch.It is noted that first and second embodiment can merge enforcement, can be sent to the functional circuit block from the receiving circuit block and become control signal, also can be sent to the data transmission system of the transmitted in both directions mode of receiving circuit block by the functional circuit block.
Please with reference to Fig. 4, be the flow chart of the data transmission method of the third embodiment of the present invention.The data transmission method of present embodiment is used for the described data transmission system 2 like first embodiment.Data transmission method comprises the following step: in step 401, receive analogue data from antenna, and transmit analogue data via the high-frequency band of two-way signaling cable; In step 402, receive analogue data through the two-way signaling cable from high-frequency band, and the conversion high-frequency signal is that digital signal is to main frame; In step 403, from the low frequency frequency range of receiving circuit block Loading Control signal to two-way signaling cable; In step 404, the acquisition of functional circuit block is positioned at the control signal of low frequency frequency range; And, data transmission system is adjusted according to control signal in step 405.
Please with reference to Fig. 5, be the flow chart of the data transmission method of the fourth embodiment of the present invention.The data transmission method of present embodiment is used for the described data transmission system 3 like second embodiment.Data transmission method comprises the following step: in step 501, receive analogue data from antenna, and transmit analogue data via the high-frequency band of two-way signaling cable; In step 502, receive analogue data through the two-way signaling cable from high-frequency band, and the conversion high-frequency signal is that digital signal is to main frame; In step 503, from the low frequency frequency range of functional circuit block Loading Control signal to two-way signaling cable; In step 504, the acquisition of receiving circuit block is positioned at the control signal of low frequency frequency range; And, data transmission system is adjusted according to control signal in step 505.
Though the present invention discloses as above with a preferred embodiment; Right its is not in order to limit the present invention; Anyly be familiar with this technological personnel; Do not breaking away from the spirit and scope of the present invention, when can doing various changes and retouching, so protection scope of the present invention is when being as the criterion with the scope that claims were defined.
Claims (14)
1. a data transmission system is characterized in that, comprises:
One two-way signal cable is to transmit a high-frequency band and a low frequency frequency range;
One antenna in order to receiving an analogue data, and transmits this analogue data via this high-frequency band of this two-way signaling cable;
One receiving circuit block;
One functional circuit block;
The receiving circuit block comprises:
One receiver module, through this two-way signaling cable, this high-frequency band receives this analogue data certainly, and to change this analogue data be numerical data to a main frame; And
One first control signal processing module, in order to load one control signal to this two-way signaling cable this low frequency frequency range;
The functional circuit block comprises:
One second control signal processing module is positioned at this control signal of this low frequency frequency range of this two-way signaling cable in order to acquisition; And
One functional module is to receive this control signal, according to this control signal this data transmission system is carried out an adjustment.
2. data transmission system according to claim 1; It is characterized in that; This control signal is to be produced to be sent to this first control signal processing module by this main frame; This functional module is a power module, is to receive this control signal, one low noise block of this antenna is carried out the adjustment of a power supply according to this control signal.
3. data transmission system according to claim 1 is characterized in that, this second control signal processing module comprises a low pass filter, is positioned at this control signal of this low frequency frequency range of this two-way signaling cable with acquisition.
4. data transmission system according to claim 1; It is characterized in that; Also comprise one first and intercept DC circuit and one second obstruct DC circuit, wherein this first obstruct DC circuit is connected between this receiver module and this two-way signaling cable, to intercept the direct current part between this receiver module and this two-way signaling cable; This second obstruct DC circuit is connected between this antenna and this two-way signaling cable, to intercept the direct current part between this antenna and this two-way signaling cable.
5. data transmission system according to claim 4 is characterized in that, this first and second obstruct DC circuit is respectively a capacity cell, and this first and second control signal processing module is respectively an inductance element.
6. a data transmission system is characterized in that, comprises:
One two-way signal cable is to transmit a high-frequency band and a low frequency frequency range;
One antenna in order to receiving an analogue data, and transmits this analogue data via this high-frequency band of this two-way signaling cable;
One functional circuit block;
One receiving circuit block;
The functional circuit block comprises:
One functional module is in order to produce a control signal; And
One second control signal processing module is in order to load this low frequency frequency range that this controls signal to this two-way signaling cable;
The receiving circuit block comprises:
One receiver module, through this two-way signaling cable, this high-frequency band receives this analogue data certainly, and to change this analogue data be numerical data to a main frame; And
One first control signal processing module is positioned at this control signal of this low frequency frequency range in order to acquisition, so that this main frame carries out an adjustment according to this control signal to this data transmission system.
7. data transmission system according to claim 6 is characterized in that, this functional module is an infrared receiver, to receive an infrared signal, to produce this control signal.
8. data transmission system according to claim 6 is characterized in that, this functional module is a switch, produces this control signal with the switching according to this switch.
9. data transmission system according to claim 6 is characterized in that, this first control signal processing module comprises a low pass filter, is positioned at this control signal of this low frequency frequency range of this two-way signaling cable with acquisition.
10. data transmission system according to claim 6; It is characterized in that; Also comprise one first and intercept DC circuit and one second obstruct DC circuit, wherein this first obstruct DC circuit is connected between this receiver module and this two-way signaling cable, to intercept the direct current part between this receiver module and this two-way signaling cable; This second obstruct DC circuit is connected between this antenna and this two-way signaling cable, to intercept the direct current part between this antenna and this two-way signaling cable.
11. data transmission system according to claim 10 is characterized in that, this first and second obstruct DC circuit is respectively a capacity cell, and this first and second control signal processing module is respectively an inductance element.
12. data transmission method; Be used for a data transmission system; It is characterized in that; This data transmission system comprises an antenna, a two-way signal cable, a receiving circuit block and a functional circuit block, and this two-way signaling cable connects and should receive and the functional circuit block, and this data transmission method comprises the following step:
Receive an analogue data from this antenna, and transmit this analogue data via a high-frequency band of this two-way signaling cable;
Through this two-way signaling cable, this high-frequency band receives this analogue data certainly, and to change this analogue data be digital signal to a main frame;
Control signal to a low frequency frequency range of this two-way signaling cable from this receiving circuit block loading one;
This functional circuit block acquisition is positioned at this control signal of this low frequency frequency range; And
According to this control signal this data transmission system is carried out an adjustment.
13. data transmission method according to claim 12; It is characterized in that this control signal is to be produced by this main frame, this functional circuit block also comprises a power module; Be to receive this control signal, one low noise block of this antenna is carried out the adjustment of a power supply according to this control signal.
14. data transmission method; Be used for a data transmission system; It is characterized in that; This data transmission system comprises an antenna, a two-way signal cable, a receiving circuit block and a functional circuit block, and this two-way signaling cable connects this receiving circuit block and this functional circuit block, and this data transmission method comprises the following step:
Receive an analogue data from this antenna, and transmit this analogue data via a high-frequency band of this two-way signaling cable;
Through this two-way signaling cable, this high-frequency band receives this analogue data certainly, and to change this analogue data be digital signal to a main frame;
Control signal to a low frequency frequency range of this two-way signaling cable from this functional circuit block loading one;
This receiving circuit block acquisition is positioned at this control signal of this low frequency frequency range; And
According to this control signal this data transmission system is carried out an adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910005331A CN101488770B (en) | 2009-02-09 | 2009-02-09 | Data transmission system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910005331A CN101488770B (en) | 2009-02-09 | 2009-02-09 | Data transmission system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101488770A CN101488770A (en) | 2009-07-22 |
| CN101488770B true CN101488770B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200910005331A Expired - Fee Related CN101488770B (en) | 2009-02-09 | 2009-02-09 | Data transmission system and method |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2930048Y (en) * | 2006-06-05 | 2007-08-01 | 圆刚科技股份有限公司 | High voltage shock protector and video device using it |
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- 2009-02-09 CN CN200910005331A patent/CN101488770B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2930048Y (en) * | 2006-06-05 | 2007-08-01 | 圆刚科技股份有限公司 | High voltage shock protector and video device using it |
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| CN101488770A (en) | 2009-07-22 |
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