Underground program remote update device based on 485 bus

A program update and bus technology, applied in program control devices, program loading/starting, wellbore/well components, etc., can solve the problems of complex operation in the update process, insufficient transmission speed, and insufficient transmission distance, etc., to achieve increased configuration Effect of update function, low power consumption, and short update time

Inactive Publication Date: 2013-06-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
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Problems solved by technology

[0004] 1. Based on the EDIB bus, the transmission distance is not long enough, the transmission speed is not high enough, and the power consumption is relatively high
[0005] 2. Use TI's HEX conversion tool to convert COFF files into HEX files, and change the DSP boot method to load the update program in the form of Bootloader. The update process is more complicated, the file takes up a lot of space, and the update time is longer

Method used

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  • Underground program remote update device based on 485 bus

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Embodiment

[0030] figure 1 It is a functional block diagram of the downhole program remote updating device based on the 485 bus of the present invention.

[0031] like figure 1 As shown, in this embodiment, the surface logging system includes a program processing module and a data sending module, and the program processing module further includes a program format analysis module and a data format encapsulation module. The software development platform for remote updating of downhole programs includes CCS development environment and QUARTUS development environment.

[0032] The program format analysis module converts the DSP update program compiled and generated by the CCS development environment, that is, the COFF file with the .OUT suffix, into a .BIN file that only contains download information, and then encapsulates the module number in the data format with the CPLD configuration file generated by the QUARTUS development environment , that is, the .JBC file is combined and packaged ...

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Abstract

The invention discloses an underground program remote update device based on a 485 bus. In a ground logging system, a program format analysis module transforms a digital signal processor (DSP) update program to be a binary (.BIN) document only comprising download information; a data format capsulation module encapsulates a complex programmable logic device (CPLD) configuration document and the .BIN document to be a hexadecimal (.HEX) document according to rules of an underground instrument control protocol; and the .HEX document is transmitted to a 485 communication bus by a signal modulationchip. In the underground instrument, a DSP program update module calls a programming library function to program the .BIN document only comprising the download information into a program memory in a DSP chip, so that the program update function of the DSP is realized. A CPLD program update module extracts a .JBC document in the .HEX document, and realizes the configuration update function of the CPLD through a joint test action group (JTAG) interface. In the underground program remote update device, the transmission distance is further; the power consumption is lower; the speed is higher; in addition, the whole operation process is simple; the occupied space of the document is smaller; and the update time is shorter.

Description

technical field [0001] The invention belongs to the technical field of program remote update, and more specifically relates to a downhole program remote update device based on 485 bus. Background technique [0002] COSL Technology Center developed the ELIS logging system and proposed a communication specification for downhole instruments. The new-generation acoustic logging tool designed according to this specification, that is, the array acoustic logging tool while drilling, has the characteristics of being difficult to disassemble, difficult to maintain, and inconvenient to update the program. [0003] The applicant applied for on April 6, 2010 and published on September 15, 2010. The application publication number is CN101832125A, and the name is "a remote update device for underground programs based on EDIB bus". A method for updating the downhole DSP program through the EDIB bus of China Oilfield Services Company. But there is following defective in this invention: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/00E21B49/00G06F9/445
Inventor 张伟师奕兵李焱骏王志刚饶知
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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