CN201550136U - Cable telemetry apparatus - Google Patents
Cable telemetry apparatus Download PDFInfo
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- CN201550136U CN201550136U CN2009202230500U CN200920223050U CN201550136U CN 201550136 U CN201550136 U CN 201550136U CN 2009202230500 U CN2009202230500 U CN 2009202230500U CN 200920223050 U CN200920223050 U CN 200920223050U CN 201550136 U CN201550136 U CN 201550136U
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Abstract
The utility model provides a cable telemetry apparatus, which is characterized by comprising a downlink module and an uplink module for data transmission between a ground system and a target apparatus, wherein the downlink module decodes a command transmitted by the ground system and transmits the command to the target apparatus; and the uplink module encodes data collected by the target apparatus and transmits the data to the ground system. The utility model adopts the downlink module and the uplink module respectively to transmit the data of the target apparatus to the ground system and to transmit the command of the ground system to the target apparatus, and has the advantages of simple structure and high transmission stability.
Description
Technical field
The utility model relates to a kind of cable telemetry transmission instrument.
Background technology
At present, in the oil exploration recovery process, need between ground system and target instrument, carry out transfer of data and forwarding, and the domestic device that is fit to carry out this data forwarding of also not developing.In addition, the external data transmission device structure very complicated that uses, transmission stability is poor, and China is carried out blockade on new techniques.
The utility model content
The technical problems to be solved in the utility model provides a kind of simple in structure, data transmission device that transmission stability is good.
In order to address the above problem, the utility model provides a kind of cable telemetry transmission instrument, it is characterized in that: be included in the uplink module and the downstream module of carrying out transfer of data and forwarding between ground system and the target instrument, described downstream module comprises first receiving element, decoding unit, command process response unit and retransmission unit, described uplink module comprises second receiving element, AMI sign indicating number converting unit and driver element, wherein:
Described first receiving element receives the order of the AMI sign indicating number form that described ground system sends or data and amplifies integer and handle, and becomes the Manchester code of standard, and standard compliant order data is sent to described decoding unit and described retransmission unit;
Described decoding unit receives the order data that described first receiving element sends and deciphers, and originally is decoded as the software decoding with chip microcontroller, and will decipher the data of getting well and send to described command process response unit;
Described command process response unit receives the good data of decoding that described decoding unit sends, and handles accordingly, makes according to different orders and replying, and the data content of replying is delivered to described AMI sign indicating number converting unit;
Described retransmission unit receives the data that described first receiving element sends, and these data are carried out sending to described target instrument (EDIB bus) after the integer;
Described second receiving element receives the data that described target instrument sends, carry out integer after, send to described AMI sign indicating number converting unit;
Described AMI sign indicating number converting unit receives the data that described second receiving element 2 and command process response unit send, and converts the data of AMI code system to, and the data after the conversion are sent to described driver element;
Described driver element receives the data that described AMI sign indicating number converting unit is sent, and carries out power drive and sends to described ground system by the pattern transformer.
Further, described decoding unit is for becoming the command decoder of Manchester code in the decoder of the binary code of standard.
The utlity model has following advantage:
1, the utility model adopts downstream module and uplink module, respectively the target instrument data is sent to ground system, and to the target instrument, this mode is simple in structure with the ground system command transfer, and the transmission stability height.
2, downstream module comprises first receiving element, decoding unit, command process response unit and retransmission unit in the utility model, can decode effectively and transmit, and realizes simple and the stability height.
Description of drawings
Below in conjunction with accompanying drawing execution mode of the present utility model is described further:
Fig. 1 shows a kind of cable telemetry transmission of the utility model instrument structural representation.
Embodiment
As shown in Figure 1, the utility model comprises downstream module 1 and uplink module 2, and the order that downstream module 1 is sent ground system 3 is deciphered and sent to target instrument 4 simultaneously; Send to ground system 3 after the data that uplink module 2 sends target instrument 4 and the reply data AMI sign indicating number conversion driving of command process response unit 13.
In the utility model, downstream module 1 comprises first receiving element 11, decoding unit 12, command process response unit 13 and retransmission unit 14, wherein:
The order or the data of the AMI sign indicating number form that first receiving element, 11 reception ground systems 3 send are amplified the integer processing, become the Manchester code of standard, and standard compliant order data is sent to decoding unit 12 and retransmission unit 14;
Decoding unit 12 receives the order data that first receiving element 11 sends and deciphers, and will decipher the data of getting well and send to command process response unit 13;
Command process response unit 13 receives the good data of decoding that decoding unit 12 sends, and handles accordingly, makes according to different orders and replying, and the data content of replying is delivered to AMI sign indicating number converting unit 22;
In the utility model, uplink module 2 comprises second receiving element 23, AMI sign indicating number converting unit 22 and driver element 21, wherein,
The data that second receiving element, 23 receiving target instruments 4 send carry out sending to AMI sign indicating number converting unit 22 after integer handles;
AMI sign indicating number converting unit 22 receives the data that second receiving elements 23 and command process response unit 13 send, and converts the data of AMI code system to, and the data after the conversion are sent to driver element 21;
In the utility model, decoding unit 12 becomes the decoder of 16 binary codes of standard for the command decoder with 20 Manchester code.
Below the utility model is sent to ground system the target instrument and the target instrument data is sent to ground system and be elaborated respectively:
The utility model receives ground system 3 orders, ground system 3 orders are the AMI sign indicating number, downstream module 1 is deciphered and is transmitted, wherein, first receiving element 11 amplifies the integer processing to the order or the data of AMI sign indicating number form earlier, become the Manchester code of standard, and standard compliant order data is sent to decoding unit 12 and retransmission unit 14.Decoding unit 12 is judged sync bit, and this moment, sync bit comprised command synchronization and data sync: if the centre of 3 sync bits is command synchronization for trailing edge; If the centre of 3 sync bits is data sync for rising edge.
The sync bit correct judgment then begins to receive 16 bit data, if any one mistake occurs in the receiving course, decoding unit 12 in the downstream module 1 will stop the decoding of notebook data, return and wait for next gathering data arrival, if it is correct to receive 16 bit data and parity check bit smoothly, then receive order and finish, otherwise receive invalid.
The order that command process response unit 13 in the downstream module 1 can will receive responds the order that receives by bidding protocol.
The baud rate that downstream module 1 is used in the present embodiment is 20.83kbps, so one is 48 microseconds, take three synchronously, on digital sequential, just taken 48 * 3=144 microsecond, when data with clock information at the 24 microsecond places, centre of each 48 microsecond if receive rising edge, then it is defined as 0, in the centre of each 48 microsecond promptly 24 microsecond places if receive trailing edge, then it is defined as 1, so just the command decoder of Manchester code is become the binary code of standard.
After the decoding of finishing 16 bit data, continue to receive parity check bit, when parity check bit is still pressed the decoding of Manchester code rule, 1 number is an odd number in 16 bit data, then parity check bit is 0, and 1 number is an even number in 16 bit data, and then parity check bit is 1.If the efficient coding of a word is correctly then finished in parity check.
In the utility model, when target instrument 4 terrestrial system 3 sent data, uplink module 2 can be encoded the data of datum target instrument 4 according to the coding rule of Manchester code, and coding can be regarded the inverse process of decoding as.This coding is sent to the subsequent conditioning circuit shaping and becomes the AMI sign indicating number and deliver on the cable, reaches ground system 3.
When uplink module 2 is encoded, the target instrument can use 41.66kbps and 2 kinds of baud rates of 93.75kbps, the baud rate of using in the present embodiment is 41.66kbps, so one time is 24 microseconds, one digit number is exactly 24 microseconds according to time corresponding, before transmitting 16 bit data, it is synchronous to send data earlier, this takies three positions synchronously, on digital sequential, just taken 24 * 3=72 microsecond, begin after 72 microseconds data that needs transmit are encoded, if these data are 1 then program promptly produces a trailing edge in 12 microsecond places in the centre of pairing 24 microseconds of these data; If these data be 0 program in the centre of pairing 24 microseconds of these data promptly 12 microsecond places produce a rising edge; By that analogy, after 16 bit data coding is finished, program can be sent a parity signal by the rule of Manchester code equally, if having in 16 bit data of coding 1 parity check bit of odd number be 0 promptly in the middle of its pairing 24 microsecond 12 microsecond places produce a rising edge; If have in 16 bit data of coding 1 parity check bit of even number be 1 promptly in the middle of its pairing 24 microsecond 12 microsecond places produce a trailing edge.
In sum; it below only is preferred embodiment of the present utility model; be not to be used to limit protection range of the present utility model; therefore; all any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (2)
1. a cable telemetry transmits instrument, it is characterized in that: be included in the downstream module (1) and the uplink module (2) that carry out transfer of data and forwarding between ground system (3) and the target instrument (4), described downstream module (1) comprises first receiving element (11), decoding unit (12), command process response unit (13) and retransmission unit (14), described uplink module (2) comprises second receiving element (23), AMI sign indicating number converting unit (22) and driver element (21), wherein
Described first receiving element (11) receives the order of the AMI sign indicating number form that described ground system (3) sends here or data and amplifies integer and handle, become the Manchester code of standard, and standard compliant order data is sent to described decoding unit (12) and described retransmission unit (14);
Described decoding unit (12) receives the order data that described first receiving element (11) sends and deciphers, and will decipher the data of getting well and send to described command process response unit (13);
Described command process response unit (13) receives the good data of decoding that described decoding unit (12) sends, and handles accordingly, makes according to different orders and replying, and the data content of replying is delivered to described AMI sign indicating number converting unit (22);
Described retransmission unit (14) receives the data that described reception is sent by unit (11), and these data are carried out sending to described target instrument (4) after the integer;
Described second receives and to be subjected to unit (23) to receive the data that described target instrument (4) sends, and carries out sending to described AMI sign indicating number converting unit (22) after integer handles;
Described AMI sign indicating number converting unit (22) receives the data that described second receiving element (23) and described command process response unit (13) send, and converts the data of AMI code system to, and the data after changing are sent to described driver element (21);
Described driver element (21) receives the data that the AMI of institute sign indicating number converting unit (22) is sent, and carries out power drive and sends to described ground system (3) by the pattern transformer.
2. cable telemetry transmission instrument as claimed in claim 1 is characterized in that: described decoding unit (12) is for becoming the command decoder of Manchester code in the decoder of the binary code of standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202230500U CN201550136U (en) | 2009-09-24 | 2009-09-24 | Cable telemetry apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202230500U CN201550136U (en) | 2009-09-24 | 2009-09-24 | Cable telemetry apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201550136U true CN201550136U (en) | 2010-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202230500U Expired - Fee Related CN201550136U (en) | 2009-09-24 | 2009-09-24 | Cable telemetry apparatus |
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|---|---|
| CN (1) | CN201550136U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119866A (en) * | 2019-12-18 | 2020-05-08 | 中海石油(中国)有限公司湛江分公司 | Remote transmission short joint with cable |
-
2009
- 2009-09-24 CN CN2009202230500U patent/CN201550136U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119866A (en) * | 2019-12-18 | 2020-05-08 | 中海石油(中国)有限公司湛江分公司 | Remote transmission short joint with cable |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100811 Termination date: 20170924 |
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| CF01 | Termination of patent right due to non-payment of annual fee |