CN110578513B - Oil drilling rig floor data acquisition device - Google Patents
Oil drilling rig floor data acquisition device Download PDFInfo
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- E—FIXED CONSTRUCTIONS
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- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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- E—FIXED CONSTRUCTIONS
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- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
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Abstract
The invention discloses an oil drilling rig floor data acquisition device, wherein an explosion-proof power supply, a sensor interface module, a data acquisition board and a command download control circuit board are arranged in a device box body of the oil drilling rig floor data acquisition device; the explosion-proof power supply is used for converting a 220v alternating current power supply into a direct current power supply required by the sensor and the circuit board; the sensor interface module is used for supplying power to the sensor and carrying out photoelectric isolation on a sensor signal; the data acquisition circuit board is used for acquiring external sensor signals and storing the external sensor signals in a remote transmission mode in real time; the instruction downloading control circuit board is used for controlling the instruction downloading device. The invention can work stably on a severe cold drilling platform, has explosion resistance, low cost, high stability and high transmission rate, integrates the functions of acquisition, storage, transmission and control, and is suitable for various analog and digital sensors.
Description
Technical Field
The invention relates to the technical field of sensor data acquisition, in particular to acquisition of sensor data in the technical field of petroleum geological exploration, and specifically relates to a petroleum drilling rig floor data acquisition device which can be used for logging while drilling and a rotary steering system.
Background
In the technical field of petroleum geological exploration, it is an extremely important work to utilize rotary steering and logging while drilling techniques to control well track in real time and obtain underground real-time measured engineering and formation parameters. Currently, a mud pulse mode is generally adopted to encode various parameters measured in a downhole and upload the encoded parameters to the surface in real time. And detecting the pulse signal on the ground through a riser pressure sensor, and decoding to obtain the underground parameters. Meanwhile, the drilling depth is calculated through a hook load sensor and a winch sensor combination which are installed on a drilling platform. Therefore, the acquisition device of various sensor data on the drilling platform is an important component of a rotary steering and logging while drilling system. The current data acquisition devices have the following disadvantages:
firstly, a data acquisition device is placed in a staff operation room, various sensors arranged on a drill floor are connected into the operation room through cables which are pulled for about 100 meters respectively, and the data acquisition device is inserted into the operation room; the driller display placed on the drill floor is also connected to the operation room by a communication cable which is independently pulled for about 100 meters. In this way, the number of wires is large, the operation is complex, and the sensor signal is easy to attenuate and interfere in long-distance transmission, thereby causing signal distortion.
Secondly, the acquired sensor data is stored in the upper computer, and when the magnetic disk of the upper computer is damaged, the data is easily lost.
And thirdly, the data acquisition device and the upper computer are communicated mainly in a serial port bus mode, and the data transmission speed is low.
And fourthly, adopting an instruction downloading control box to independently control the instruction downloading device. The instruction downloading control box is placed in an employee operating room, and a communication cable which is about 100 meters in length is independently pulled to be connected with the instruction downloading device.
Therefore, in the present stage, a data acquisition device for an oil drilling rig floor, which can be placed on the drilling rig floor, reduces the complexity of operation, integrates the instruction downloading control function, meets the severe environment of the drilling rig floor, meets the explosion-proof requirement and realizes high-speed transmission, is needed.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art, and provides an oil drilling rig data acquisition device which can stably work on a severe cold drilling platform, has an explosion-proof power supply, low cost, high stability and high transmission rate, integrates acquisition, storage, transmission and control functions, and is suitable for various analog and digital sensors.
The technical scheme adopted by the invention for solving at least one of the problems in the prior art is as follows:
the data acquisition device for the oil drilling rig floor is characterized by comprising a device box body, wherein an explosion-proof power supply, a sensor interface module, a data acquisition circuit board and an instruction download control circuit board are arranged in the device box body; the explosion-proof power supply is used for converting a 220v alternating current power supply into a direct current power supply required by the sensor and the circuit board; the sensor interface module is used for supplying power to the sensor and carrying out photoelectric isolation on a sensor signal; the data acquisition circuit board comprises a power supply module, a temperature testing module, a data acquisition module, a data storage module, a data transmission module and a programmable control module; the power supply module is used for converting a power supply output by the explosion-proof power supply into a power supply required by the circuit board; the temperature testing module is used for measuring the internal temperature of the explosion-proof power supply and the internal temperature of the box body; the data acquisition module is used for digitizing external sensor signals; the data storage module is used for storing sensor data acquired in real time; the data transmission module is used for transmitting the sensor data acquired in real time to an upper computer through a network; the programmable control module is used for controlling the data acquisition module to acquire sensor signals according to a certain time sequence, simultaneously controlling the acquired real-time data to be stored, controlling the data transmission module to remotely transmit the real-time acquired data to an upper computer, and sending a download control instruction issued by the upper computer to an instruction download control board; the instruction downloading control board comprises a communication module, a driving module and a control module; the communication module is used for communicating with the data acquisition board to realize data exchange; the driving module is used for converting the control instruction into a driving current of 4-20 mA and a voltage signal of 0-24V so as to drive the instruction downloading device; the control module is used for controlling the communication module and the driving module.
The drill floor data acquisition device provided by the invention adopts a security explosion-proof design, and the box body adopts an explosion-proof and waterproof design according to a structure diagram and a layout diagram, so that the explosion-proof and waterproof requirements of the oil drilling platform 1 on long-time work are met.
The drill floor data acquisition device provided by the invention adopts an explosion-proof power supply, consists of an AC-DC module and a DC-DC module, and is packaged by adopting an explosion-proof packaging box, so that the explosion-proof effect is achieved.
According to the drill floor data acquisition device provided by the invention, the sensor interface module is connected with various sensors by adopting a Raymond connector, so that the purposes of convenience in disassembly and assembly, and dust prevention and water prevention in the device are achieved; meanwhile, the isolation grating is adopted to carry out photoelectric isolation on each path of sensor signals, so that the explosion-proof requirement is met.
The data acquisition circuit board of the drill floor data acquisition device provided by the invention can also consist of a power supply module, a sensor signal conditioning module, a temperature testing module, a data acquisition module, a programmable control module, a data storage module and a data transmission module.
According to the drill floor data acquisition device provided by the invention, a power supply module adopts a WRB2424S-3WR2 module, and 24V output by an explosion-proof power supply AC-DC is output after protection and filtering; outputting 5V output by the DC-DC of the explosion-proof power supply after protection and filtering; and 5V power supply is converted into 3.3V power supply for a circuit board.
According to the drill floor data acquisition device provided by the invention, the sensor signal conditioning module is used for amplifying and conditioning the analog signal; and shaping and conditioning the pulse signals.
The data acquisition module of the drill floor data acquisition device provided by the invention comprises 3 paths of analog signals and 2 paths of pulse signals. The data acquisition is orderly carried out under the control of an FPGA circuit, wherein an analog signal adopts 16-bit A/D to digitize the signal, and then a latch is adopted to latch; the pulse signals are conditioned and then directly connected to an FPGA circuit for counting.
According to the drill floor data acquisition device provided by the invention, the programmable control module adopts a structure of FPGA + ARM, and the FPGA is responsible for controlling the acquisition of sensor signals; the ARM is responsible for storing the acquired real-time data, and is also responsible for TCP/IP communication with the upper computer and respectively communicates and controls with the driller display and the RS485 of the lower transmission control board.
According to the drill floor data acquisition device provided by the invention, the data storage module adopts 64MB SDRAM and 2GB NANDFLASH, and simultaneously supports an external DOM disk mode, so that the data acquired in real time are stored locally and sent to an upper computer in real time.
According to the drill floor data acquisition device provided by the invention, the instruction downloading control board adopts an ARM controller, and the instruction downloaded by the upper computer is converted into a control signal through communication between the RS485 and the data acquisition board, so that the instruction downloading device or the instruction is controlled to download.
The drill floor data acquisition device provided by the invention has two modes of controlling the instruction downloading device, one mode is a current driving mode, and the other mode is a voltage driving mode.
Drawings
Fig. 1 is a schematic diagram of a mechanism of an oil drilling rig data acquisition device according to an embodiment of the invention.
FIG. 2 is a power module according to an embodiment of the present invention
Fig. 3 is a circuit for conditioning analog signals of a sensor according to an embodiment of the present invention.
Fig. 4 is a sensor pulse signal shaping circuit according to an embodiment of the present invention.
Fig. 5 is an acquisition circuit provided in an embodiment of the present invention.
FIG. 6 is an ARM programmable control module provided in the embodiments of the present invention
FIG. 7 is an FPGA programmable control module provided in an embodiment of the present invention
Fig. 8 is a circuit diagram of a memory module according to an embodiment of the present invention.
Fig. 9 is a circuit of an ARM programmable control module of an instruction issue control board according to an embodiment of the present invention.
Fig. 10 is a schematic diagram of an RS485 interface circuit provided in the embodiment of the present invention.
Fig. 11 is a schematic diagram of a command download driving circuit according to an embodiment of the invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments and accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
Example 1:
as shown in fig. 1, the main modules of the acquisition device are shown, and in combination with fig. 1, the oil drilling rig data acquisition device can comprise a device box body, wherein an explosion-proof power supply, a sensor interface module, a data acquisition circuit board and a command download control circuit board are arranged in the device box body; the explosion-proof power supply is used for converting a 220v alternating current power supply into a direct current power supply required by the sensor and the circuit board; the sensor interface module is used for supplying power to the sensor and carrying out photoelectric isolation on a sensor signal; the data acquisition circuit board comprises a power supply module, a temperature testing module, a data acquisition module, a data storage module, a data transmission module and a programmable control module; the power supply module is used for converting a power supply output by the explosion-proof power supply into a power supply required by the circuit board; the temperature testing module is used for measuring the internal temperature of the explosion-proof power supply and the internal temperature of the box body; the data acquisition module is used for digitizing external sensor signals; the data storage module is used for storing sensor data acquired in real time; the data transmission module is used for transmitting the sensor data acquired in real time to an upper computer through a network; the programmable control module is used for controlling the data acquisition module to acquire sensor signals according to a certain time sequence, simultaneously controlling the acquired real-time data to be stored, controlling the data transmission module to remotely transmit the real-time acquired data to an upper computer, and sending a download control instruction issued by the upper computer to an instruction download control board; the instruction downloading control board comprises a communication module, a driving module and a control module; the communication module is used for communicating with the data acquisition board to realize data exchange; the driving module is used for converting the control instruction into a driving current of 4-20 mA and a voltage signal of 0-24V so as to drive the instruction downloading device; the control module is used for controlling the communication module and the driving module. The control instruction downloading device can also specifically control instruction downloading, such as triggering or changing the downloading time, and can also drive a specific instruction downloading device to transmit instructions, as will be understood by those skilled in the art. It is known in the art that the power supply for the explosion-proof power supply and the data acquisition board may be integrated into one power module.
The drill floor data acquisition device provided by the invention adopts a security explosion-proof design, and the box body adopts an explosion-proof and waterproof design according to a structure diagram and a layout diagram, so that the explosion-proof and waterproof requirements of the oil drilling platform 1 on long-time work are met.
The drill floor data acquisition device provided by the invention adopts an explosion-proof power supply, consists of an AC-DC module and a DC-DC module, and is packaged by adopting an explosion-proof packaging box, so that the explosion-proof effect is achieved. The AC-DC module converts 220V alternating current power supply into 24V direct current power supply by using a Phoneix QUINT 2320908 explosion-proof power supply, wherein the explosion-proof power supply can adopt a primary switching mode, the explosion-proof power supply in the primary switching mode comprises a switching element (also called a primary switch), specifically a Metal Oxide Semiconductor Field Effect Transistor (MOSFET), so as to convert an Alternating Current (AC) source into a regulated DC output voltage, and can also comprise a converter for converting a Direct Current (DC) voltage into another DC voltage, such as a DC-DC quasi-resonant converter; and with SFB technology (selective fuse technology), wires or housing boxes etc. with protective coatings, providing optimum protection even at 100% humidity, and moreover, by preventive functional monitoring, also extremely high system effectiveness can be ensured, since it can send critical operating status reports before a fault occurs; the DC-DC module adopts a blue and soft FH16 high-temperature industrial power supply module. In addition, the explosion-proof power supply module can also comprise a controller, wherein the controller starts the switching of the primary switch when the feedback voltage reaches a first threshold voltage and stops the switching of the primary switch when the feedback voltage reaches a second threshold voltage; the controller adjusts the feedback voltage relative to the first threshold voltage to reduce a delay time for starting switching the primary switch to improve switching efficiency and facilitate an increase in the output voltage.
According to the drill floor data acquisition device provided by the invention, the sensor interface module is connected with various sensors by adopting a Raymond connector, the connector is provided with a self-locking system, the plugging and the pulling are simple and quick, the vibration and the impact can be effectively prevented, the sealing reaches IP66 level, and the purposes that the sensors are convenient to disassemble and assemble and the interior of the device is dustproof and waterproof are finally achieved; and simultaneously, the MTL isolation gate is adopted to carry out photoelectric isolation on each path of sensor signals, so that the explosion-proof requirement is met.
Example 2:
the data acquisition circuit board of the drill floor data acquisition device provided by the invention can also be composed of a power supply module, a sensor signal conditioning module, a temperature testing module, a data acquisition module, a programmable control module, a data storage module and a data transmission module.
A power supply module:
as shown in fig. 2, the data acquisition circuit board requires 24V, 5V, 3.3V power supplies. The 24V power module adopts WRB2424S-3WR2, and the 24V power output by the explosion-proof power supply AC-DC at the input end VI + passes through an SMBJ33CA transient suppression diode, is protected by a series PTC self-recovery fuse, and then enters the power module after being filtered by a capacitor C240. The output end VO + is filtered by a filter circuit consisting of devices C241, BLM21PG221SN1, C242, C243 and C244 to output 24V, and the 24V output by the explosion-proof power supply AC-DC is output after protection and filtering; the 5V power supply is output after being protected and filtered by 5V output by the explosion-proof power supply DC-DC; the 3.3V power supply is converted from a 5V power supply through TPS54616PWPG4 and is used for a circuit board. It is known in the art that the power supply for the explosion-proof power supply and the data acquisition board may be integrated into one power module.
The power supply module has a Transient Voltage Suppressor (TVS), which is a highly efficient circuit protection device, which in the present invention has extremely fast response time (sub-nanosecond) and a relatively high surge absorption capability. When two ends of the TVS are subjected to transient high-energy impact, the TVS can change the impedance value between the two ends from high impedance to low impedance at a very high speed to absorb a transient large current, so that the voltage between the two ends of the TVS is clamped on a preset value, and the following circuit elements are protected from the impact of transient high-voltage spike pulse. The TVS can be used for protecting equipment or a circuit from transient voltage generated when static electricity and inductive loads are switched and overvoltage generated by inductive lightning, so that the whole circuit has lightning stroke resistance by using the TVS tube, and the field operation stability of the equipment is improved.
A sensor signal conditioning module:
as shown in fig. 4 and fig. 3, the sensor analog signal conditioning circuit and the sensor pulse signal conditioning circuit are respectively provided. The analog signal conditioning module of the sensor adopts an AD627ARZ amplifier to carry out preceding stage amplification, adopts two operational amplifiers OPA2188AIDR to carry out secondary amplification filtering processing, improves the resolution ratio of signals, filters external interference signals in the signals simultaneously, and improves the sampling precision and stability of the signals. The sensor pulse signal conditioning module adopts a shaping circuit composed of a Schmidt trigger SN74LVC1G14DBVR, a triode MMBT5551 and the like to shape and condition the pulse signal.
A data acquisition module:
as shown in fig. 5, the data acquisition module includes 3 analog signals and 2 pulse signals. The data acquisition is orderly carried out under the control of an FPGA, wherein an analog signal is digitized by adopting a 16-bit AD7671AST, and then latched by adopting an SN74LVTH162245DGG latch; the pulse signals are conditioned and then directly accessed into the FPGA for counting.
A programmable control module:
as shown in fig. 7 and fig. 6, the programmable control module adopts a structure of FPGA + ARM, and the FPGA is responsible for controlling the sensor signal acquisition; the ARM is responsible for storing the acquired real-time data, and is also responsible for TCP/IP communication with the upper computer and respectively communicates and controls with the driller display and the RS485 of the lower transmission control board.
ARM adopts the STM32F429I chip of high performance ARM Cortex M4 framework as the core, and this product contains external memory interface, is used for connecting the memory module of bit width to can easily expand storage range, and this controller can reach 90 MHz's frequency through a 32 bit parallel interface, can support Compact Flash, SRAM, PSRAM, NOR, NAND and present SDRAM memory. Meanwhile, the series of products adopt an intentional semiconductor 90nm process and an ART accelerator, have a dynamic power consumption adjusting function, and can realize current consumption (@180MHz) as low as 260 mu A/MHz in an operation mode and during execution from a Flash memory. In shutdown mode, the typical power consumption value is only 100 μ A.
The FPGA adopts an industrial field programmable logic array (FPGA) chip of XILINX corporation of America, model number XC6SLX45-2CSG324I, and the chip is Spar-tan of XILINX corporationTMThe-6 series chips are provided with MINI-LVDS interfaces, have high processing speed and can meet the use requirements of the system. The FPGA is used as a processor and is mainly responsible for acquiring data of the front-end sensor and transmitting the acquired data to the ARM for remote sending and real-time storage.
A data storage module:
as shown in fig. 8, the invention uses a 64MB SDRAM data storage module with model number K4S511632D-uc (l)75 and a 2GB model number NAND FLASH of K9WAG08U1A-PCB0, and supports an external DOM disk mode to store the data collected in real time locally.
Command download control board:
as shown in fig. 9 and 10, the instruction download control board adopts an ARM controller of the model STM32F105RC as a control core of the board, and communicates with the data acquisition board through an RS485 communication circuit composed of a 485 communication chip SP485EEN and a common mode inductor choke coil WCM-4532-142-2P to convert the instruction downloaded by the upper computer into a control signal, so as to control the instruction download device.
The instruction downloading driving circuit:
as shown in fig. 11, there are two ways of controlling the command downloading device, one is a current driving way, and the other is a voltage driving way. The current drive adopts two OPA2188AIDR to form an amplifying circuit, and the control signal is converted into a 4-20 mA drive current drive instruction downloading device. The voltage drive adopts a drive circuit consisting of an MMBT5551 triode and an AO3401 field effect transistor, and the control signal is converted into a drive voltage of 0-24V, so that the command downloading device is driven.
The above description is only an embodiment of the present invention, and is not intended to limit the present invention, and any modification, equivalent replacement, improvement, etc. (for example, the simple modification of the present invention is also applicable to the encoding method with parity check or no parity check, etc.) within the spirit and method of the present invention, and other modifications and embellishments can be made without departing from the technical principle of the present invention, and these modifications and embellishments should also be regarded as the protection scope of the present invention.
The invention may be described in the general context of computer-executable instructions, such as program modules, being executed by a computer. Generally, program modules include routines, programs, objects, components, data structures, etc. that perform particular tasks or implement particular abstract data types. The invention may also be practiced in distributed computing environments where tasks are performed by remote processing devices that are linked through a communications network. In a distributed computing environment, program modules may be located in both local and remote computer storage media including memory storage devices.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is directed to embodiments of the present invention, and it is understood that various modifications and improvements can be made by those skilled in the art without departing from the spirit of the invention.
Claims (10)
1. The oil drilling rig floor data acquisition device is characterized in that an explosion-proof power supply, a sensor interface module, a data acquisition board and an instruction download control board are arranged in a device box body of the oil drilling rig floor data acquisition device;
the explosion-proof power supply is used for converting a 220v alternating current power supply into a direct current power supply required by the sensor and the circuit board, the explosion-proof power supply has a primary switch mode and adopts a selective fusing technology, and a fusing device of the explosion-proof power supply is provided with a protective coating;
the sensor interface module is used for supplying power to the sensors, is connected with various sensors by adopting a Raymond connector and is used for carrying out photoelectric isolation on signals of various sensors by adopting an isolation grid;
the data acquisition board comprises a power module, a data acquisition module, a data storage module, a data transmission module and a programmable control module, wherein the power module is used for converting a power output by an explosion-proof power supply into required voltage, the power module is provided with a transient voltage suppressor for suppressing lightning current, the data acquisition module is used for digitizing external sensor signals, the data storage module is used for storing sensor data acquired in real time, the data transmission module is used for transmitting the sensor data acquired in real time to an upper computer through a network,
the programmable control module is used for controlling the data acquisition module to acquire sensor signals according to time sequence, simultaneously controlling the acquired real-time data to be stored, controlling the data transmission module to remotely transmit the real-time acquired data to the upper computer, and sending a download control instruction issued by the upper computer to the instruction download control board.
2. The oil drilling rig floor data collection device of claim 1, wherein the explosion-proof power supply is comprised of an AC-DC module and a DC-DC module, and the data collection board further comprises a temperature test module for measuring the internal temperature of the explosion-proof power supply and the internal temperature of the box.
3. The oil drilling rig data acquisition device as claimed in claim 1, wherein the power supply module adopts a WRB2424S-3WR2 module, and 24V output by the explosion-proof power supply AC-DC module is output after protection and filtering; outputting 5V output by the DC-DC of the explosion-proof power supply after protection and filtering; and the 5V power supply is converted into 3.3V and supplied to the data acquisition board and the instruction download control board.
4. The oil drilling rig data acquisition device of claim 1, wherein the power module is a WRB2424S-3WR2 module, a WRB2424S-3WR2 module voltage positive input end VI + 24V power output by the explosion-proof power supply AC-DC module passes through a transient suppression diode, is connected with a positive temperature coefficient PTC self-recovery fuse in series for protection, and then enters a WRB2424S-3WR2 module after being filtered by a capacitor; the voltage positive output end VO + of the WRB2424S-3WR2 module is filtered by a filter circuit consisting of 1 inductor and 3 capacitors, and then is output to 24V after protection and filtering; the 5V power supply is output after being protected and filtered by 5V output by the explosion-proof power supply DC-DC module; the 3.3V power supply is converted from the 5V power supply.
5. The oil drilling rig floor data acquisition device of claim 1, wherein the data acquisition module comprises 3 analog signals and 2 pulse signals; the data acquisition is orderly carried out under the control of a Field Programmable Gate Array (FPGA) circuit, wherein an analog signal adopts 16-bit A/D to digitize the signal, and then a latch is adopted to latch; the pulse signals are conditioned and then directly accessed to a field programmable gate array FPGA circuit for counting.
6. The oil drilling rig data acquisition device as claimed in claim 1, wherein the programmable control module adopts a structure of a Field Programmable Gate Array (FPGA) and an embedded microprocessor (ARM), and the FPGA circuit is responsible for controlling the acquisition of the sensor signals; the embedded microprocessor ARM is responsible for storing the acquired real-time data, is responsible for TCP/IP communication with an upper computer, and is respectively communicated with the driller display and an RS485 interface of a lower control board.
7. The oil drilling rig data acquisition device of claim 1, wherein the data storage module employs 64MB SDRAM synchronous dynamic random access memory and 2GB flash memory, and supports an external DOM disk mode, and stores the data acquired in real time locally and simultaneously transmits the data to an upper computer in real time.
8. The oil drilling rig floor data acquisition device of claim 1, wherein the command download control board uses an embedded microprocessor ARM-based controller, communicates with the data acquisition board through an RS485 interface, converts commands downloaded by an upper computer into control signals, and then controls the command download device.
9. The oil drilling rig floor data acquisition device of any one of claims 1-8, wherein the explosion-proof power supply is packaged by an explosion-proof packaging box to achieve an explosion-proof effect.
10. An oil drilling rig floor data acquisition device according to any one of claims 1-8, characterized in that: the instruction downloading control board comprises a communication module, a driving module and a control module; the communication module is used for communicating with the data acquisition board to realize data exchange, the driving module is used for converting a control instruction into a driving current of 4-20 mA and/or a voltage signal of 0-24V so as to drive the instruction to be downloaded, and the control module is used for controlling the communication module and the driving module.
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| DE69314289T2 (en) * | 1992-12-07 | 1998-01-29 | Akishima Lab Mitsui Zosen Inc | System for measurements during drilling with pressure pulse valve for data transmission |
| CN201707846U (en) * | 2010-06-08 | 2011-01-12 | 斯伦贝谢金地伟业油田技术(山东)有限公司 | Drill floor explosion-proof display |
| CN204253010U (en) * | 2014-11-07 | 2015-04-08 | 中国海洋石油总公司 | Drilling parameter monitoring system |
| US20170350241A1 (en) * | 2016-05-13 | 2017-12-07 | Ningbo Wanyou Deepwater Energy Science & Technology Co.,Ltd. | Data Logger and Charger Thereof |
| CN107168148A (en) * | 2017-04-18 | 2017-09-15 | 杭州金秋汽车储能科技有限公司 | A kind of lithium battery data acquisition device and system |
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