Well site data wireless explosion-proof display terminal data transmission device, method and system

Abstract

The invention belongs to the field of comprehensive logging, particularly relates to a data transmission device, method and system for a wireless explosion-proof display terminal of well site data, and aims to solve the problems that an explosion-proof display is connected in a wired manner on site, an external signal line is too long, signal attenuation is serious, and installation difficulty is high. A computer host needs to be installed at a client side when a wireless network bridge is adopted to transmit data, and the problems that software is difficult to install and maintain, signal transmission is unstable, and obstacles cannot exist between network bridges exist exist. The method comprises the steps that a computer intercepts a logging instrument data signal through WITS data interception software; the data sending device receives data signals of the logging instrument and sends the data signals in a transparent transmission mode through the output antenna in a wireless signal mode. And the explosion-proof display terminal receives the wireless signal, and the wireless signal is displayed after being processed by the PCB mainboard. According to the explosion-proof display terminal, a data wireless transmission and receiving function of the explosion-proof display terminal is realized by adopting a WITS data interception wireless transmission method, the installation difficulty is reduced, and the lightning protection performance is improved.

Description

Background Art

[0002] To ensure information security, the integrated logging team should provide three explosion-proof display terminals to push data to the drilling party in real time. At present, the well site logging instrument provides logging data to the drilling platform or the management room, and explosion-proof displays are generally used to display the video screen of the middle platform machine. An external 100-meter video cable or network cable is required. Sometimes the management room needs to cross the lane for overhead installation, which requires longer signal lines, serious signal attenuation, and difficulty in installation. In addition, overhead lines are prone to induction of high-voltage lightning, which can damage the display and the video distribution system inside the instrument room. Some sites use wireless bridges to transmit data, which requires the installation of a computer host on the client side. There are problems such as difficult software installation and maintenance, complex software operation, easy infection of viruses, unstable transmission signals, and no obstacles between bridges. Summary of the invention

[0003] In order to solve the above problems in the prior art, that is, when a wireless bridge is used to transmit data on site, a computer host needs to be installed on the client, and there are problems such as difficult software installation and maintenance, complex software operation, easy virus infection, unstable transmission signal, and no obstacles between bridges. The present invention provides a well site data wireless explosion-proof display terminal data transmission device, which includes:

[0004] Comprehensive logging instrument room 1, computer 2, data transmission equipment 3 and explosion-proof display terminal 4;

[0005] The comprehensive logging equipment room 1 is used to house computers 2 and data transmission equipment 3;

[0006] The computer 2 is used to intercept the data signal of the mud logger through the WITS data interception software, and transmit the data signal of the mud logger to the data sending device 3 through the serial port;

[0007] The data transmission device 3 is used to receive the data signal of the logging instrument and send it in the form of wireless signal through the output antenna in a transparent transmission mode; the output antenna is arranged on the roof of the comprehensive logging instrument room 1;

[0008] The explosion-proof display terminal 4 is a terminal with an external receiving antenna, which is used to receive the wireless signal and display it after processing through a PCB mainboard.

[0009] Furthermore, the data sending device 3 is implemented using an industrial-grade wireless transmission module AS32-TTL-1W, and multiple channels are set according to task requirements.

[0010] Furthermore, the explosion-proof display terminal 4 specifically includes: a switching power supply 5, an uninterruptible power supply 6, a DC / DC power supply module 7, a touch industrial screen 8, a PCB mainboard 9 and a button power switch 10;

[0011] Among them, the explosion-proof display terminal 4 is arranged inside the stainless steel explosion-proof box, and the switching power supply 5, the uninterruptible power supply 6, the DC / DC power supply module 7 and the touch industrial screen 8 are respectively connected to the PCB main board 9;

[0012] A button power switch 10 is arranged on one side of the stainless steel explosion-proof box;

[0013] The touch industrial screen 8 is arranged on the surface of the stainless steel explosion-proof box.

[0014] Furthermore, the uninterruptible power supply 6 is a lithium battery, which serves as an online UPS battery and replaces the switching power supply 5 to supply power when a power reversal operation or a temporary power outage is performed at the well site.

[0015] Furthermore, the PCB main board 9 is constructed based on the STM32 main control chip 11;

[0016] The PCB main board 9 includes a first power supply module 12, an AD acquisition module 13, a wireless interface data module 14 and a relay output module 15;

[0017] The STM32 main control chip 11 is implemented using an ultra-low power high-performance ARM Cortex-M0 processor core.

[0018] Furthermore, the first power module 12 includes a fuse chip, a voltage regulator chip, a diode and a capacitor.

[0019] Furthermore, the AD acquisition module 13 adopts a 20-pin, 4mm×4mm LFCSP small-size package;

[0020] The AD acquisition module 13 internally includes 4 analog signal acquisition interfaces, which are implemented using the precision 4-channel rail-to-rail input / output operational amplifier AD8618 and the 16-bit 8-channel 250kSPS, single-power, isolated data acquisition AD chip AD7689;

[0021] The AD chip AD7689 includes a 16-bit SAR ADC, an 8-channel low crosstalk multiplexer, a low drift reference voltage source and buffer, a temperature sensor, a selectable single-pole filter and a channel sequencer.

[0022] Furthermore, the wireless interface data module 14 and the data sending device 3 are both implemented using an industrial-grade wireless transmission module AS32-TTL-1W.

[0023] Another aspect of the present invention provides a method for transmitting data via a wireless explosion-proof display terminal of well site data, the method comprising:

[0024] Step S1, intercepting the data signal of the mud logger through the WITS data interception software, and transmitting the data signal of the mud logger to the data sending device 3 through the serial port;

[0025] Step S2, using a transparent transmission method to send out in the form of a wireless signal through an output antenna;

[0026] Step S3, receiving the wireless signal, and displaying it on the explosion-proof display terminal 4 after being processed by the PCB mainboard in the stainless steel explosion-proof box.

[0027] In a third aspect of the present invention, a wireless explosion-proof display terminal data transmission system for well site data is proposed, the system comprising:

[0028] A data interception unit, configured to intercept the data signal of the mud logger through the WITS data interception software, and transmit the data signal of the mud logger to the data sending device 3 through the serial port;

[0029] A data transmission unit, configured to transmit in a transparent transmission manner through an output antenna in the form of a wireless signal;

[0030] The data receiving and processing unit is configured to receive the wireless signal and display it on the explosion-proof display terminal 4 after processing it through the PCB mainboard in the stainless steel explosion-proof box.

[0031] Beneficial effects of the present invention:

[0032] (1) The present invention adopts the WITS data interception wireless transmission method to develop an explosion-proof display terminal, realizes the data wireless transmission and receiving function of the explosion-proof display terminal, reduces the installation difficulty, and improves the lightning protection performance. The independently developed WITS data interception software is installed on any computer in the comprehensive logging instrument room, and the AS32-TTL-100 wireless data transmission module of the data sending unit is used to utilize the point-to-multiple (same address) working mode in its fixed-point transmission mode to realize the sending of data from the logging instrument room. Multiple explosion-proof display terminals with the same address can receive data at the same time. The explosion-proof display terminal receives the logging instrument data through the data receiving unit, and displays various data through the data processing board.

[0033] (2) Traditional explosion-proof displays can only display the screen of the logging instrument computer. The present invention innovatively develops an explosion-proof display terminal and develops solidified working software for the explosion-proof display terminal. Users can freely select display parameters, set parameter alarm thresholds, and select two display modes: numerical and curve. Local data can be stored and exported, and it has a power-off endurance function. Different numbers of explosion-proof display terminals can be installed at any location according to user needs. It is an intelligent display device with human-computer interaction function.

[0034] (3) The wireless data transmission and reception of the present invention adopts the AS32-TTL-100 wireless data transmission module with an operating frequency of 433MHz. The point-to-multiple (same address) working mode in its fixed-point transmission mode is used to realize the data transmission in the logging instrument room. Multiple explosion-proof display terminals with the same address can receive data at the same time. The explosion-proof display terminal is fixed with the self-developed working software, and the operation is simple and flexible. Compared with the wireless bridge, it has the advantages of strong anti-interference ability, strong signal penetration, no fear of obstruction, one sending and multiple receiving, no virus infection and system crash, etc.

[0035] (4) Compared with the existing explosion-proof display, the present invention can directly analyze and process the collected data to a certain extent without the need for external computer equipment. It has simple logic and low hardware threshold, which greatly improves the working stability in harsh environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Other features, objects and advantages of the present application will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0037] Figure 1 2 is a schematic diagram of the structure of a wireless explosion-proof display terminal data transmission device for well site data in an embodiment of the present invention;

[0038] Figure 2 is a schematic diagram of the structure of an explosion-proof display terminal in an embodiment of the present invention;

[0039] Figure 3 is a connection diagram of a PCB mainboard in an embodiment of the present invention;

[0040] Figure 4 It is a specific connection diagram of the AD acquisition module in the embodiment of the present invention. DETAILED DESCRIPTION

[0041] The present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the relevant invention, rather than to limit the invention. It is also necessary to explain that, for ease of description, only the parts related to the relevant invention are shown in the accompanying drawings.

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] In the prior art, explosion-proof monitors are usually connected by wire, which requires an external 100-meter video cable or network cable. Sometimes, they need to be installed overhead across the lane, which requires longer signal lines, severe signal attenuation, and great installation difficulty. In addition, overhead lines are easily induced by high-voltage lightning, which can damage the monitor and the video distribution system inside the instrument room.

[0044] In order to more clearly explain the wireless explosion-proof display terminal data transmission device for well site data of the present invention, the following is combined with Figure 1 Each part in the embodiment of the present invention is described in detail.

[0045] The wireless explosion-proof display terminal data transmission device for well site data of the first embodiment of the present invention comprises a comprehensive logging instrument room 1, a computer 2, a data transmission device 3 and an explosion-proof display terminal 4; each part is described in detail as follows:

[0046] The comprehensive logging equipment room 1 is used to house computers 2 and data transmission equipment 3;

[0047] The computer 2 is used to intercept the data signal of the mud logger through the WITS data interception software, and transmit the data signal of the mud logger to the data sending device 3 through the serial port;

[0048] The data transmission device 3 is used to receive the data signal of the logging instrument and transmit it in the form of a wireless signal through the output antenna in a transparent transmission mode; the output antenna is set on the roof of the comprehensive logging instrument room 1; in this embodiment, the transparent transmission mode requires that the channel, address and airspeed settings of the sending module and the receiving module are consistent. The output antenna is an omnidirectional antenna magnetically attached to the top of the comprehensive logging instrument room 1.

[0049] In this embodiment, the data transmission device 3 is implemented using an industrial-grade wireless transmission module AS32-TTL-1W, and multiple channels are set according to task requirements. The frequency is set to 433MHz, and the wireless data module adopts an open source design, which can adapt to any standard or non-standard user protocol, and multiple channels can be set according to user needs. As long as the manufacturer provides the LORA communication protocol, the monitoring system can be adapted, which has extremely high versatility. The module has strong anti-interference ability and long transmission distance. Using AT-1 antenna, the transmission distance can reach 2500m. Low power consumption, transmission current 350~500mA, receiving current 32~38mA.

[0050] The explosion-proof display terminal 4 is a terminal with an external receiving antenna, which is used to receive the wireless signal and display it after processing through a PCB mainboard.

[0051] In this embodiment, the explosion-proof display terminal 4, such as Figure 2 As shown, it specifically includes: a switching power supply 5, an uninterruptible power supply 6, a DC / DC power supply module 7, a touch industrial screen 8, a PCB mainboard 9 and a button power switch 10;

[0052] Among them, the explosion-proof display terminal 4 is arranged inside the stainless steel explosion-proof box, and the switching power supply 5, the uninterruptible power supply 6, the DC / DC power supply module 7 and the touch industrial screen 8 are respectively connected to the PCB main board 9;

[0053] The switching power supply 5 supports an external 220V AC voltage of AC100-240V, and the switching power supply outputs DC15V / 4A. The module is miniaturized, occupies less space, has high output parameter accuracy and stability, and supplies power to the entire device.

[0054] In this embodiment, the uninterruptible power supply 6 is a lithium battery, which is used as an online UPS battery to replace the switching power supply 5 when the well site is in a power-reversal operation or a temporary power outage. The specification is 12V / 5AH, and the uninterrupted working time is greater than 2 hours.

[0055] In this embodiment, the DC / DC power module 7 converts the DC15V output of the switching power supply into DC24V to supply power to the external sound and light alarm. The model of the DC / DC power module 7 is EV48-T1224, with an input of 12VDC and an output of 24VDC.

[0056] In this embodiment, the touch industrial screen 8 is a 15-inch high-brightness touch industrial screen with a brightness of 900nit, which is visible in sunlight and can be adjusted in 64 levels of brightness. With the touch screen function, the operator can perform daily operations such as convenient viewing, calibration, and storage without the help of any external mouse or buttons. DMT12720q1010_A2W is selected.

[0057] In this embodiment, the PCB main board 9 is constructed based on the STM32 main control chip 11; it is designed with 183 nodes, supports various customized function expansions, and has a self-developed explosion-proof display terminal working software installed, which is responsible for the reception, processing, storage and output display control of the wireless data of the logging instrument.

[0058] The STM32 main control chip 11 is implemented with an ultra-low power high-performance ARM Cortex-M0 processor core. It can meet the continuous and reliable computing power output in harsh temperature environments. The microcontroller of the Cortex-M0 processor core is 8-bit and 16-bit. Compared with traditional 32-bit microprocessors, it can maintain low power consumption and high reliability while implementing complex functions. It achieves an ultra-wide operating temperature range of -40°C to +85°C, and the power consumption is only 12.5mW. The large user data storage capacity chip 256MB is used, so that the historical data collected by the system can be saved, and it can support 16GB memory expansion, and the data can be directly exported via USB.

[0059] The PCB main board 9 is as follows Figure 3 As shown, it includes a first power supply module 12, an AD acquisition module 13, a wireless interface data module 14 and a relay output module 15;

[0060] exist Figure 3In the figure, the PCB main board 9 is connected to the wireless interface data module 14 by a single line, the PCB main board 9 is connected to the relay output module 15 by a single line, and the first power supply module 12 simultaneously supplies power to the PCB main board 9 and the AD acquisition module 13 with different voltages; the PCB main board 9 is data-connected to the AD acquisition module 13.

[0061] In this embodiment, the first power supply module 12 includes a fuse chip, a voltage stabilizing chip, a diode and a capacitor, and provides a stable power supply for the control board.

[0062] In this embodiment, the AD acquisition module 13 adopts a 20-pin, 4 mm×4 mm LFCSP small-size package; therefore, the cost and printed circuit board (PCB) area are reduced to a minimum.

[0063] The AD acquisition module 13 internally includes 4 analog signal acquisition interfaces, which are implemented using the precision 4-channel rail-to-rail input / output operational amplifier AD8618 and the 16-bit 8-channel 250kSPS, single-power, isolated data acquisition AD chip AD7689;

[0064] The AD chip AD7689 includes a 16-bit SAR ADC, an 8-channel low crosstalk multiplexer, a low drift reference voltage source and buffer, a temperature sensor, a selectable single-pole filter and a channel sequencer.

[0065] The AD acquisition module 13 innovatively designs a unique sequencer structure for continuously scanning channels, and does not require a microcontroller or FPGA to control channel switches, which greatly simplifies circuit design and reduces failure rates.

[0066] The specific connection of AD acquisition module 13 is as follows Figure 4 As shown, it includes 4 SMD4532 acquisition interfaces, an AD8618 chip, an AD7689 chip, and REF195F.

[0067] The four acquisition interfaces input the collected signals from the 3rd, 5th, 10th and 12th pins of the AD8618 chip respectively, and transmit the signals to the AD7689; the DIN, SCK, CNV and SDO pins of the AD7689 are connected to the ADuM1401ARW; the REF pin and VIO pin of the AD7689 are connected to the REF195F.

[0068] In this embodiment, the wireless interface data module 14 and the data transmission device 3 are both implemented using the industrial-grade wireless transmission module AS32-TTL-1W. The frequency is set to 433MHz, the power is 1W, and a transparent transmission mode is adopted. Compared with traditional chips, it has better receiving sensitivity. It adopts LORA spread spectrum modulation, TTL level output, and low receiving current, which greatly improves the module's anti-interference and high stability. The module has four working states, which can be switched freely during operation. The current consumption is extremely low in the power-saving working state, which is very suitable for ultra-low power consumption applications.

[0069] The relay output module 15 is responsible for the output control of the external sound and light alarm.

[0070] A button power switch 10 is arranged on one side of the stainless steel explosion-proof box;

[0071] The touch industrial screen 8 is arranged on the surface of the stainless steel explosion-proof box.

[0072] Although the various steps in the above embodiment are described in the above-mentioned order, those skilled in the art can understand that in order to achieve the effect of this embodiment, different steps do not have to be executed in such an order. They can be executed simultaneously (in parallel) or in a reverse order. These simple changes are within the scope of protection of the present invention.

[0073] A method for transmitting data of a wireless explosion-proof display terminal of well site data according to a second embodiment of the present invention comprises:

[0074] Step S1, intercepting the data signal of the mud logger through the WITS data interception software, and transmitting the data signal of the mud logger to the data sending device 3 through the serial port;

[0075] Step S2, using a transparent transmission method to send out in the form of a wireless signal through an output antenna;

[0076] Step S3, receiving the wireless signal, and displaying it on the explosion-proof display terminal 4 after being processed by the PCB mainboard in the stainless steel explosion-proof box.

[0077] A third embodiment of the present invention is a wireless explosion-proof display terminal data transmission system for well site data, the system comprising:

[0078] A data interception unit, configured to intercept the data signal of the mud logger through the WITS data interception software, and transmit the data signal of the mud logger to the data sending device 3 through the serial port;

[0079] A data transmission unit, configured to transmit in a transparent transmission manner through an output antenna in the form of a wireless signal;

[0080] The data receiving and processing unit is configured to receive the wireless signal and display it on the explosion-proof display terminal 4 after processing it through the PCB mainboard in the stainless steel explosion-proof box.

[0081] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working process and related instructions of the storage device and processing device described above can refer to the corresponding process in the aforementioned method embodiment and will not be repeated here.

[0082] Those skilled in the art should be able to appreciate that the modules and method steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software or a combination of the two, and the programs corresponding to the software modules and method steps can be placed in random access memory (RAM), internal memory, read-only memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disks, removable disks, CD-ROMs, or any other form of storage medium known in the technical field. In order to clearly illustrate the interchangeability of electronic hardware and software, the composition and steps of each example have been generally described in the above description according to the function. Whether these functions are performed in electronic hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but this implementation should not be considered to exceed the scope of the present invention.

[0083] The terms "first", "second", etc. are used to distinguish similar objects rather than to describe or indicate a particular order or sequence.

[0084] The term "comprise" or any other similar term is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus / device.

[0085] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A data transmission device for a wireless explosion-proof display terminal of wellsite data, characterized in that, the device includes: a comprehensive mud logging instrument room (1), a computer (2), a data sending device (3) and an explosion-proof display terminal (4); the comprehensive mud logging instrument room (1) is used to arrange the computer (2) and the data sending device (3); the computer (2) is used to intercept the mud logging instrument data signal through WITS data interception software and transmit the mud logging instrument data signal to the data sending device (3) through a serial port; the data sending device (3) is used to receive the mud logging instrument data signal and send it out in the form of a wireless signal through an output antenna by using a transparent transmission method; the output antenna is arranged on the roof of the comprehensive mud logging instrument room (1); the explosion-proof display terminal (4) is a terminal with a receiving antenna externally connected, used to receive the wireless signal and display it after being processed by a PCB main board.

2. The data transmission device for a wireless explosion-proof display terminal of wellsite data according to claim 1, characterized in that, the data sending device (3) is implemented by using an industrial-grade wireless transmission module AS32-TTL-1W and multiple channels are set according to task requirements.

3. The data transmission device for a wireless explosion-proof display terminal of wellsite data according to claim 1, characterized in that, the explosion-proof display terminal (4) specifically includes: a switching power supply (5), an uninterruptible power supply (6), a DC / DC power module (7), a touch industrial screen (8), a PCB main board (9) and a button power switch (10); wherein, the explosion-proof display terminal (4) is arranged inside a stainless steel explosion-proof box, and the switching power supply (5), the uninterruptible power supply (6), the DC / DC power module (7) and the touch industrial screen (8) are respectively connected to the PCB main board (9); the button power switch (10) is arranged on one side of the stainless steel explosion-proof box; the touch industrial screen (8) is arranged on the surface of the stainless steel explosion-proof box.

4. The data transmission device for a wireless explosion-proof display terminal of wellsite data according to claim 3, characterized in that, the uninterruptible power supply (6) is a lithium battery and serves as an online UPS battery to supply power instead of the switching power supply (5) when power transfer operation is carried out at the wellsite or there is a temporary power outage.

5. The data transmission device for a wireless explosion-proof display terminal of wellsite data according to claim 3, characterized in that, the PCB main board (9) is constructed based on an STM32 main control chip (11); the PCB main board (9) includes an STM32 main control chip (11), a first power module (12), an AD acquisition module (13), a wireless interface data module (14) and a relay output module (15); the STM32 main control chip (11) is implemented by using a high-performance ARM Cortex-M0 processor core with ultra-low power consumption.

6. The data transmission device for a wireless explosion-proof display terminal of wellsite data according to claim 5, characterized in that, the first power module (12) includes a fuse chip, a voltage stabilizing chip, a diode and a capacitor.

7. The data transmission device of the wellsite data wireless explosion-proof display terminal according to claim 5, characterized in that the AD acquisition module (13) adopts a 20-pin, 4mm×4mm LFCSP small-size package; The AD acquisition module (13) internally includes 4 channels of analog signal acquisition interfaces, which are implemented by using a precision 4-channel rail-to-rail input / output operational amplifier AD8618 and a 16-bit 8-channel 250kSPS, single-power-supply, isolated data acquisition AD chip AD7689; The AD chip AD7689 includes a 16-bit SAR ADC, an 8-channel low-crosstalk multiplexer, a low-drift reference voltage source and buffer, a temperature sensor, an optional single-pole filter, and a channel sequencer.

8. The data transmission device of the wellsite data wireless explosion-proof display terminal according to claim 5, characterized in that, both the wireless interface data module (14) and the data sending device (3) are implemented by using an industrial-grade wireless transmission module AS32-TTL-1W.

9. A method for transmitting wellsite data of a wireless explosion-proof display terminal, characterized in that, the method includes: Step S1, intercepting the logging instrument data signal through WITS data interception software, and transmitting the logging instrument data signal to the data sending device (3) through a serial port; Step S2, sending it in the form of a wireless signal through an output antenna by using a transparent transmission method; Step S3, receiving the wireless signal, and displaying it on the explosion-proof display terminal (4) after being processed by a PCB main board in a stainless steel explosion-proof box.

10. A system for transmitting wellsite data of a wireless explosion-proof display terminal, characterized in that, the system includes: a data interception unit configured to intercept the logging instrument data signal through WITS data interception software, and transmit the logging instrument data signal to the data sending device (3) through a serial port; a data transmission unit configured to send it in the form of a wireless signal through an output antenna by using a transparent transmission method; a data reception and processing unit configured to receive the wireless signal, and display it on the explosion-proof display terminal (4) after being processed by a PCB main board in a stainless steel explosion-proof box.

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