CN102571185A - Down hole data transmission method and system - Google Patents
Down hole data transmission method and system Download PDFInfo
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- CN102571185A CN102571185A CN2011104513332A CN201110451333A CN102571185A CN 102571185 A CN102571185 A CN 102571185A CN 2011104513332 A CN2011104513332 A CN 2011104513332A CN 201110451333 A CN201110451333 A CN 201110451333A CN 102571185 A CN102571185 A CN 102571185A
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- downhole data
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Abstract
The invention discloses a down hole data transmission method and a system. The down hole data transmission method comprises the steps of obtaining down hole data, converting the down hole data into electromagnetic signals through a first converting method, amplifying the electromagnetic signals and then sending the electromagnetic signals; receiving the amplified electromagnetic signals through a relay station arranged in a shaft, then amplifying the electromagnetic signals and sending the electromagnetic signals; and receiving the electromagnetic signals sent by the relay station, and converting the electromagnetic signals into down hole data through a second converting method. According to the down hole data transmission method and the system, when the down hole data are converted into the electromagnetic signals, and the electromagnetic signals are amplified and sent, the electromagnetic signals can be received then amplified by the relay station arranged in the shaft, so that the electromagnetic signals cannot be completely absorbed by the ground. Therefore, the down hole data transmission does not require additionally adding cables and memorizers, thereby solving the problem of inconvenient use caused by additionally adding cables and memorizers.
Description
Technical field
The present invention relates to technical field of data transmission, more particularly, relate to a kind of downhole data transmission method and system.
Background technology
In geological prospecting and oilfield exploitation field, need be with downhole data transmission to Ground analysis to obtain underground many-sided situation.
Evidence, the earth is very big to the absorption of electromagnetic wave signal, the electromagnetic wave signal that frequency is high more, the earth is just strong more to its absorption, electromagnetic wave signal signal attenuation fast more when underground transmission.
Therefore, in the prior art, when adopting electromagnetic wave signal transmission downhole data, generally all need be near the face of land cable laying, before electromagnetic wave attenuation is intact, use cable to transmit, and a connected storage of this cable is stored electromagnetic wave signal.When using, need take off memory, obtain the electromagnetic wave signal of its storage, be converted into downhole data again, very inconvenience.
Summary of the invention
In view of this, the present invention provides a kind of downhole data transmission method and system, the inconvenient problem with use that needs extra use cable and memory to cause when solving existing downhole data transmission.
Unresolved the problems referred to above, the existing scheme that proposes is following:
A kind of downhole data transmission method comprises:
Obtain downhole data, convert said downhole data into electromagnetic wave signal with first conversion method, send after amplifying said electromagnetic wave signal;
Be arranged at the electromagnetic wave signal after the interior relay station of hoistway receives said amplification, again it amplified the back and send;
Receive the electromagnetic wave signal that said relay station sends, convert it into downhole data with second conversion method.
Preferably, said relay station also comprises after amplifying the electromagnetic wave signal after the said amplification:
Electromagnetic wave signal after the said amplification is carried out filtering operation;
Change the electromagnetic wave signal after the said amplification with said second conversion method, when the electromagnetic wave signal after the amplification after the conversion is effective, convert it into electromagnetic wave signal with said first conversion method again.
Preferably, the frequency range of said electromagnetic wave signal is: the 1-2 megahertz.
Preferably, said first conversion method is digital-to-analogue conversion, and said second conversion method is an analog-to-digital conversion.
Preferably, also comprise after getting access to downhole data: adopt the said downhole data of secret key encryption of making an appointment;
The electromagnetic wave signal that the said relay station of said reception sends also comprises after converting it into downhole data with second conversion method: adopt the said downhole data of secret key decryption of making an appointment.
A kind of down-hole data communication system comprises:
The downhole data treating stations is used to obtain downhole data, converts said downhole data into electromagnetic wave signal with first conversion method, sends after amplifying said electromagnetic wave signal;
Be arranged in the hoistway, quantity is at least one relay station, is used to receive the electromagnetic wave signal that said downhole data treating stations sends, again it is amplified the back and sends;
Receiving terminal station is used to receive the electromagnetic wave signal that said relay station sends, and converts it into downhole data with second conversion method.
Preferably, said relay station comprises:
The relay station receiver module is used to receive the electromagnetic wave signal that said downhole data treating stations sends;
Relay station amplifies sending module, is used for that said electromagnetic wave signal is amplified the back and sends;
Said relay station also comprises signal processing unit, is used for the electromagnetic wave signal that said relay station amplifies after sending module amplifies is carried out filtering operation; Change said filtered electromagnetic wave signal with said second conversion method, when the electromagnetic wave signal after the conversion is effective, convert it into electromagnetic wave signal with first conversion method again.
Preferably, said downhole data treating stations also comprises ciphering unit, is used to adopt the said downhole data of the secret key encryption of making an appointment;
Said receiving terminal station also comprises decryption unit, is used to adopt the said downhole data of the secret key decryption of making an appointment.
Preferably, the frequency range of said electromagnetic wave signal is: the 1-2 megahertz.
Preferably, said first conversion method is digital-to-analogue conversion, and said second conversion method is an analog-to-digital conversion.
Can find out from above-mentioned technical scheme; In the downhole data transmission method and system disclosed by the invention; When downhole data is converted into electromagnetic wave signal, and amplify send after, the relay station that is arranged in the hoistway can receive this electromagnetic wave signal; Again with its amplification, so that this signal can not absorbed by the earth fully.Therefore, extra increase cable and memory are not just wanted in the transmission of downhole data, have solved the inconvenient problem with use that causes because of the extra increase cable of needs and memory.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the flow chart of the disclosed a kind of downhole data transmission method of the embodiment of the invention;
Fig. 2 is the flow chart of the disclosed a kind of downhole data transmission method of another embodiment of the present invention;
Fig. 3 is the flow chart of the disclosed a kind of downhole data transmission method of another embodiment of the present invention;
Fig. 4 is the structure chart of the disclosed a kind of down-hole data communication system of the embodiment of the invention;
Fig. 5 is the structure chart of the disclosed relay station of the embodiment of the invention.
Embodiment
To combine the accompanying drawing in the embodiment of the invention below, the technical scheme in the embodiment of the invention is carried out clear, intactly description, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the present invention's protection.
The embodiment of the invention discloses a kind of downhole data transmission method and system, the inconvenient problem with use that needs extra use cable and memory to cause when solving existing downhole data transmission.
As shown in Figure 1, said downhole data transmission method comprises step:
S101, obtain downhole data, convert said downhole data into electromagnetic wave signal with first conversion method, send after amplifying said electromagnetic wave signal;
Concrete, said downhole data is the signal of the downhole instrument behind the actualization, promptly according to the signal of downhole instrument and the corresponding relation of ground end geological condition distribution, the data behind the signal of conversion downhole instrument.
And, because downhole data is converted into after the electromagnetic wave signal, this signal a little less than, so need it be amplified.
S102, be arranged at the electromagnetic wave signal after relay station in the hoistway receives said amplification, again it amplified the back and send;
Concrete, different according to hoistway length, the quantity of the relay station of setting is also different, and shorter when hoistway, electromagnetic wave signal is exaggerated in the time of once just can directly being transferred to the face of land, in this hoistway, only a relay station need be set and get final product.
When hoistway was longer, electromagnetic wave signal was exaggerated and once is not enough to be transferred to the face of land and will be absorbed by the earth, at this moment; A plurality of relay stations are set in hoistway, and first relay station receives the electromagnetic wave signal that downhole data is changed and amplified, and it is amplified the back send; Second relay station receives the electromagnetic wave signal that first relay station sends; It is amplified the back send, the 3rd relay station receives the electromagnetic wave signal that second relay station sends, and repeats aforesaid operations.
And; The frequency of the electromagnetic wave signal that each relay station sends is different; And can only receive the electromagnetic wave signal of CF with each relay station, be example with second relay station, and its frequency with the electromagnetic wave signal that first relay station sends is different; And the frequency of the electromagnetic wave signal of its transmission is identical with the electromagnetic frequency that the 3rd relay station receives, and makes the 3rd relay station can only receive the electromagnetic wave signal that second relay station sends.
A plurality of relay stations are set in the transmission range of electromagnetic wave signal
The electromagnetic wave signal that S103, the said relay station of reception send converts it into downhole data with second conversion method.
Concrete, the frequency range of the electromagnetic wave signal in the above-mentioned downhole data transmission method is: the 1-2 megahertz, and said first conversion method is digital-to-analogue conversion, said second conversion method is an analog-to-digital conversion.
In the downhole data transmission method disclosed by the invention, when downhole data is converted into electromagnetic wave signal, and amplify send after, the relay station that is arranged in the hoistway can receive this electromagnetic wave signal, again with its amplification, so that this signal can not absorbed by the earth fully.Therefore, extra increase cable and memory are not just wanted in the transmission of downhole data, have solved the inconvenient problem with use that causes because of the extra increase cable of needs and memory.
Another embodiment of the present invention also discloses a kind of downhole data transmission method, and is as shown in Figure 2, comprises step:
S201, obtain downhole data, convert said downhole data into electromagnetic wave signal with first conversion method, send after amplifying said electromagnetic wave signal;
S202, be arranged at the electromagnetic wave signal after relay station in the hoistway receives said amplification, again with its amplification;
S203, the electromagnetic wave signal after the said amplification is carried out filtering operation;
S204, change the electromagnetic wave signal after the said amplification, when the electromagnetic wave signal after the amplification after the conversion is effective, converts it into electromagnetic wave signal with said first conversion method again and send with said second conversion method;
When the electromagnetic wave signal after the amplification after the conversion is invalid, explain that this signal is an interference signal, reject not.
S205, said second electromagnetic wave signal of reception convert it into downhole data with second conversion method.
Another embodiment of the present invention also discloses a kind of downhole data transmission method, and is as shown in Figure 3, comprises step:
S301, obtain downhole data, adopt the said downhole data of secret key encryption of making an appointment;
S302, convert the downhole data after the said encryption into electromagnetic wave signal with first conversion method, send after amplifying said electromagnetic wave signal;
S303, be arranged at the electromagnetic wave signal after relay station in the hoistway receives said amplification, again with its amplification;
S304, the electromagnetic wave signal after the said amplification is carried out filtering operation;
S305, change the electromagnetic wave signal after the said amplification, when the electromagnetic wave signal after the amplification after the conversion is effective, converts it into electromagnetic wave signal with said first conversion method again and send with said second conversion method;
S306, said second electromagnetic wave signal of reception convert it into downhole data with second conversion method;
The said downhole data of secret key decryption that S307, employing are made an appointment.
Concrete, the key of making an appointment can be a password, through the password encryption downhole data, and through changing password to decipher encryption downhole data afterwards; Also can a kind of corresponding relation, through this corresponding relation downhole data is mapped as another kind of data, be converted into electromagnetic wave signal and transmit, when needs are deciphered, decipher through the inverse relation of this corresponding relation again.
The disclosed down-hole data communication system of the embodiment of the invention is as shown in Figure 4, comprising:
Downhole data treating stations 101 is used to obtain downhole data, converts said downhole data into electromagnetic wave signal with first conversion method, sends after amplifying said electromagnetic wave signal;
Be arranged in the hoistway, quantity is at least one relay station 102, is used to receive the electromagnetic wave signal that said downhole data treating stations sends, again it is amplified the back and sends;
Receiving terminal station 103 is used to receive the electromagnetic wave signal that said relay station sends, and converts it into downhole data with second conversion method.
Concrete, the frequency range of the electromagnetic wave signal in the above-mentioned down-hole data communication system is: the 1-2 megahertz, and said first conversion method is digital-to-analogue conversion, said second conversion method is an analog-to-digital conversion.
Wherein, relay station 102 comprises:
Relay station receiver module 21 is used to receive the electromagnetic wave signal that said downhole data treating stations sends; Concrete, this receiver module can comprise a reception antenna, when for the signal strengthening receiving, a plurality of reception antennas can be set, the electromagnetic wave signal that a plurality of reception antennas stacks receive.
Relay station amplifies sending module 22, is used for that said electromagnetic wave signal is amplified the back and sends.
When needs excluded the interference signal, relay station 102 also comprised signal processing unit 23, was used for the electromagnetic wave signal that said relay station amplifies after sending module amplifies is carried out filtering operation; Change said filtered electromagnetic wave signal with said second conversion method, when the electromagnetic wave signal after the conversion is effective, convert it into electromagnetic wave signal with first conversion method again.
Equally, different according to hoistway length, the quantity of the relay station 102 of setting is also different, and shorter when hoistway, electromagnetic wave signal is exaggerated in the time of once just can directly being transferred to the face of land, in this hoistway, only a relay station need be set and get final product.When hoistway was longer, electromagnetic wave signal was exaggerated and once is not enough to be transferred to the face of land and will be absorbed by the earth, at this moment; A plurality of relay stations are set in hoistway, and first relay station receives the electromagnetic wave signal that downhole data is changed and amplified, and it is amplified the back send; Second relay station receives the electromagnetic wave signal that first relay station sends; It is amplified the back send, the 3rd relay station receives the electromagnetic wave signal that second relay station sends, and repeats aforesaid operations.
And; The frequency of the electromagnetic wave signal that each relay station sends is different; And can only receive the electromagnetic wave signal of CF with each relay station, be example with second relay station, and its frequency with the electromagnetic wave signal that first relay station sends is different; And the frequency of the electromagnetic wave signal of its transmission is identical with the electromagnetic frequency that the 3rd relay station receives, and makes the 3rd relay station can only receive the electromagnetic wave signal that second relay station sends.
In the disclosed downhole data treatment system of the foregoing description, when needing the downhole data of encrypted transmission, downhole data treating stations 101 also comprises ciphering unit, is used to adopt the said downhole data of the secret key encryption of making an appointment;
Receiving terminal station 103 also comprises decryption unit, is used to adopt the said downhole data of the secret key decryption of making an appointment.
Each embodiment adopts the mode of going forward one by one to describe in this specification, and what each embodiment stressed all is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be conspicuous concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments among this paper.Therefore, the present invention will can not be restricted to these embodiment shown in this paper, but will meet and principle disclosed herein and features of novelty the wideest corresponding to scope.
Claims (10)
1. a downhole data transmission method is characterized in that, comprising:
Obtain downhole data, convert said downhole data into electromagnetic wave signal with first conversion method, send after amplifying said electromagnetic wave signal;
Be arranged at the electromagnetic wave signal after the interior relay station of hoistway receives said amplification, again it amplified the back and send;
Receive the electromagnetic wave signal that said relay station sends, convert it into downhole data with second conversion method.
2. method according to claim 1 is characterized in that, said relay station also comprises after amplifying the electromagnetic wave signal after the said amplification:
Electromagnetic wave signal after the said amplification is carried out filtering operation;
Change the electromagnetic wave signal after the said amplification with said second conversion method, when the electromagnetic wave signal after the amplification after the conversion is effective, convert it into electromagnetic wave signal with said first conversion method again.
3. method according to claim 1 and 2 is characterized in that, the frequency range of said electromagnetic wave signal is: the 1-2 megahertz.
4. method according to claim 1 and 2 is characterized in that, said first conversion method is digital-to-analogue conversion, and said second conversion method is an analog-to-digital conversion.
5. method according to claim 1 and 2 is characterized in that,
Also comprise after getting access to downhole data: adopt the said downhole data of secret key encryption of making an appointment;
The electromagnetic wave signal that the said relay station of said reception sends also comprises after converting it into downhole data with second conversion method: adopt the said downhole data of secret key decryption of making an appointment.
6. a down-hole data communication system is characterized in that, comprising:
The downhole data treating stations is used to obtain downhole data, converts said downhole data into electromagnetic wave signal with first conversion method, sends after amplifying said electromagnetic wave signal;
Be arranged in the hoistway, quantity is at least one relay station, is used to receive the electromagnetic wave signal that said downhole data treating stations sends, again it is amplified the back and sends;
Receiving terminal station is used to receive the electromagnetic wave signal that said relay station sends, and converts it into downhole data with second conversion method.
7. system according to claim 6 is characterized in that, said relay station comprises:
The relay station receiver module is used to receive the electromagnetic wave signal that said downhole data treating stations sends;
Relay station amplifies sending module, is used for that said electromagnetic wave signal is amplified the back and sends;
Said relay station also comprises signal processing unit, is used for the electromagnetic wave signal that said relay station amplifies after sending module amplifies is carried out filtering operation; Change said filtered electromagnetic wave signal with said second conversion method, when the electromagnetic wave signal after the conversion is effective, convert it into electromagnetic wave signal with first conversion method again.
8. system according to claim 6 is characterized in that,
Said downhole data treating stations also comprises ciphering unit, is used to adopt the said downhole data of the secret key encryption of making an appointment;
Said receiving terminal station also comprises decryption unit, is used to adopt the said downhole data of the secret key decryption of making an appointment.
9. system according to claim 6 is characterized in that, the frequency range of said electromagnetic wave signal is: the 1-2 megahertz.
10. system according to claim 6 is characterized in that, said first conversion method is digital-to-analogue conversion, and said second conversion method is an analog-to-digital conversion.
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| CN201110451333.2A CN102571185B (en) | 2011-12-29 | 2011-12-29 | Down hole data transmission method and system |
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| CN101070763A (en) * | 2007-06-14 | 2007-11-14 | 赵凤济 | Visible wireless commanding device for mine rescure |
| CN101106701A (en) * | 2007-07-25 | 2008-01-16 | 中国矿业大学 | Local installation emergent rescue wireless audio and video transmission device for mine |
| CN101626491A (en) * | 2009-03-17 | 2010-01-13 | 丁伟 | Communication device of digital visual safety cap for mine |
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2011
- 2011-12-29 CN CN201110451333.2A patent/CN102571185B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1586962A (en) * | 2004-08-23 | 2005-03-02 | 北京世纪东方国铁电讯科技有限公司 | Relay device and method for data communication between locomotive and train tail part |
| CN101070763A (en) * | 2007-06-14 | 2007-11-14 | 赵凤济 | Visible wireless commanding device for mine rescure |
| CN101106701A (en) * | 2007-07-25 | 2008-01-16 | 中国矿业大学 | Local installation emergent rescue wireless audio and video transmission device for mine |
| CN101626491A (en) * | 2009-03-17 | 2010-01-13 | 丁伟 | Communication device of digital visual safety cap for mine |
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| CN102571185B (en) | 2015-05-20 |
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