Fault detector and data transmission fault detection system

Abstract

The embodiment of the invention relates to a fault detector and a data transmission fault detection system. The fault detector comprises a current module and a voltage module. The current module is used for testing the current of a data transmission line in the data transmission system under the condition of a first gear, and is also used for providing a power supply for a monitoring instrument in the data transmission system to test the current of the monitoring instrument under the condition of a second gear; the voltage module is used for testing the voltage of a power supply end of a monitoring instrument in the data transmission system; the current module detects the current of the data transmission line and the monitoring instrument under different gears, and the voltage module detects the voltage of the power supply end of the monitoring instrument, so that the fault point is effectively judged, and the efficiency of searching and processing the fault of the data transmission system is improved.

Description

Technical Field

[0001] This invention relates to the field of electronic instrumentation technology, and in particular to a fault detector and a data transmission fault detection system. Background Technology

[0002] With the development of IoT systems in oil and gas production, the types, models, and quantities of automated instruments are increasing. Due to the massive amount of data required and the sheer number of instruments, the number of malfunctions is also rising. Production data is collected and transmitted via wired or wireless means by various instruments, ultimately displayed on a server, forming a data transmission system. When this system malfunctions, maintenance personnel need to invest significant manpower and resources to determine which part of the digital integrated equipment, digital instruments, data transmission lines, or power supply is at fault.

[0003] In related technologies, multimeters and signal generators are often used to measure the operating parameters of data transmission lines. However, the instruments connected to the terminal are passive remote transmission instruments, making it impossible to use signal generators to test the data transmission channel. When testing with a multimeter in voltage mode when the data transmission line is grounded or the loop resistance is increased, the high internal resistance of the voltage mode can easily lead to misjudgments. Furthermore, the functionality of on-site monitoring instruments cannot be checked with a multimeter. Therefore, multimeters and signal generators cannot be used to test the data transmission system and can only be used as auxiliary tools. Summary of the Invention

[0004] The embodiments of the present invention provide a fault detector and a data transmission fault detection system to solve the technical problem of low efficiency in diagnosing fault points in data transmission systems using a multimeter in conjunction with a signal generator.

[0005] In a first aspect, embodiments of the present invention provide a fault detector, including a current module and a voltage module; the current module is used to test the current of the data transmission line in the data transmission system in a first setting, and is also used to provide power to the monitoring instrument in the data transmission system to test the current of the monitoring instrument in a second setting; the voltage module is used to test the power supply voltage of the monitoring instrument in the data transmission system.

[0006] In some embodiments, the current module includes an ammeter, a function switch, a current testing component, a power supply module, and current testing leads; when the function switch is in the first position, the ammeter is connected to the current testing component and connected to the data transmission line via the current testing leads to test the current of the data transmission line; when the function switch is in the second position, the ammeter is connected to the power supply module and connected to the monitoring instrument via the current testing leads to test the current of the monitoring instrument.

[0007] In some embodiments, the current module further includes an adjustable potentiometer for adjusting the current of the data transmission line or monitoring instrument.

[0008] In some embodiments, the current test lead includes a positive current test lead and a negative current test lead; one end of the positive current test lead and the negative current test lead is provided with a first clamp for connecting to the data transmission line or monitoring instrument; the other end of the positive current test lead and the negative current test lead is provided with a first quick aviation plug for connecting to the current module.

[0009] In some embodiments, the current module further includes a power switch for controlling the current module to be turned on or off.

[0010] In some embodiments, the voltage module includes a voltmeter and a voltage test lead; the voltmeter is connected to the power supply terminal of the monitoring instrument via the voltage test lead, and is used to test the power supply terminal voltage of the monitoring instrument.

[0011] In some embodiments, the voltage test line includes a positive voltage test lead and a negative voltage test lead; one end of the positive voltage test lead and the negative voltage test lead is provided with a second clamp for connecting to the power supply terminal of the monitoring instrument; the other end of the positive voltage test lead and the negative voltage test lead is provided with a second quick aviation plug for connecting to the voltage module.

[0012] In some embodiments, the voltage module further includes a gear switch for controlling the voltage module to be turned on or off.

[0013] In some embodiments, a casing disposed outside the current module and the voltage module is also included.

[0014] Secondly, embodiments of the present invention provide a data transmission fault detection system, including a data transmission system and a fault detector as described in any of the first aspects; the data transmission system includes a monitoring instrument, a data transmission line, and a server, wherein the monitoring instrument transmits collected monitoring data to the server through the data transmission line; and the fault detector is used to detect fault points in the data transmission system.

[0015] The fault detector and data transmission fault detection system provided in this invention include a current module and a voltage module. The current module is used to test the current of the data transmission line in the data transmission system in a first-level setting, and also to provide power to the monitoring instrument in the data transmission system to test the current of the monitoring instrument in a second-level setting. The voltage module is used to test the power supply voltage of the monitoring instrument in the data transmission system. By detecting the current of the data transmission line and the monitoring instrument in different levels using the current module, and by detecting the power supply voltage of the monitoring instrument using the voltage module, the fault point can be effectively identified, thereby improving the efficiency of fault finding and handling in the data transmission system. Attached Figure Description

[0016] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of a fault detector provided in an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of another fault detector provided in an embodiment of the present invention;

[0020] Figure 3 for Figure 2 The diagram shows the working principle of a fault detector.

[0021] Figure 4 This is an application diagram of a fault detector provided in an embodiment of the present invention;

[0022] 10-Current module; 101-Ammeter; 102-Function switch; 103-Current test assembly; 104-Power module; 105-Adjustable potentiometer; 106-Positive current test lead; 107-Negative current test lead; 108-First quick aviation connector; 109-Power switch; 20-Voltage module; 201-Voltage meter; 202-Positive voltage test lead; 203-Negative voltage test lead; 204-Second quick aviation connector; 205-Gear switch; 30-Casing; 40-Monitoring instrument; 50-Data transmission line; 60-Server. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] With the development of IoT systems in oil and gas production, the types, models, and quantities of automated instruments are increasing. Due to the massive amount of data required and the sheer number of instruments, the number of malfunctions is also rising. Various field monitoring instruments collect production data via wired or wireless means and transmit this data to a PC for display, forming a data transmission system. When a malfunction occurs in the PC's monitoring data, maintenance personnel cannot determine whether the fault lies with the digital integrated equipment, digital instruments, data transmission lines, or power supply. This necessitates significant manpower and resources for maintaining the automated instruments and lines within the data transmission system. Currently used instruments such as temperature and pressure transmitters mostly convert measured pressure and temperature data into 4-20 mA current for transmission (i.e., the data transmission line can also be called a data transmission circuit). When monitoring detects errors in the remotely transmitted data from field monitoring instruments, it is necessary to determine which part of the data transmission process is faulty.

[0025] In related technologies, multimeters and signal generators are often used to measure the operating parameters of data transmission circuits. However, the instruments connected to the terminal are passive remote instruments, making it impossible to use a signal generator to test the data transmission channel. When testing the data transmission circuit with a voltage setting due to grounding or increased loop resistance, the high internal resistance of the voltage setting can easily lead to misjudgments. Furthermore, the functionality of on-site monitoring instruments cannot be checked with a multimeter. Therefore, multimeters and signal generators cannot be used to test the data transmission system and can only be used as auxiliary tools.

[0026] To address the aforementioned technical problems, the present invention provides a fault detector comprising a current module and a voltage module; the current module can detect whether the data transmission line and the monitoring instrument are faulty, and the voltage module can detect whether the power supply to the monitoring instrument is faulty.

[0027] Figure 1 This is a schematic diagram of the structure of a fault detector provided in an embodiment of the present invention, as shown below. Figure 1 As shown, the fault detector includes a current module 10 and a voltage module 20;

[0028] The current module 10 is used to test the current of the data transmission line 50 in the data transmission system in the first gear position, and also to provide power to the monitoring instrument 40 in the data transmission system to test the current of the monitoring instrument 40 in the second gear position; the voltage module 20 is used to test the power supply voltage of the monitoring instrument 40 in the data transmission system.

[0029] Specifically, when the monitoring data displayed on the PC side of the data transmission system is abnormal, the fault detector provided in this embodiment can be used to determine the fault point. The fault detector in this embodiment integrates a current module 10 and a voltage module 20. The current module 10 has two settings: in the first setting, it is connected to the data transmission line 50 to test the current of the data transmission line 50 to determine if a fault point exists; in the second setting, it is connected to the field monitoring instrument 40 to provide power to the passive field monitoring instrument 40, testing the current of the field monitoring instrument 40 to determine if a fault point exists. The voltage module 20 is connected to the power supply terminal of the field monitoring instrument 40 to test the voltage at its power supply terminal to determine if the instrument's power supply is faulty.

[0030] The fault detector provided in this embodiment of the invention detects the current of the data transmission line and the monitoring instrument at different speeds using a current module, and detects the power supply voltage of the monitoring instrument using a voltage module, thereby effectively identifying the fault point. When the server 60 of the data transmission system detects fault data, the fault detector provided in this embodiment can be used to detect the system's operating parameters, improving the efficiency of fault finding and handling.

[0031] Based on the aforementioned embodiments, Figure 2 This is a schematic diagram of another fault detector provided in an embodiment of the present invention. Figure 3 for Figure 2 The diagram shown illustrates the working principle of a fault detector. Figure 2 , 3 As shown, the fault detector includes a current module 10 and a voltage module 20;

[0032] The current module 10 includes an ammeter 101, a function switch 102, a current testing component 103, a power module 104, and current testing leads. When the function switch 102 is in the first position, the ammeter 101 is connected to the current testing component 103 and connected to the data transmission line 50 via the current testing leads to test the current of the data transmission line 50. When the function switch 102 is in the second position, the ammeter 101 is connected to the power module 104 and connected to the monitoring instrument 40 via the current testing leads to test the current of the monitoring instrument 40.

[0033] The voltage module 20 includes a voltmeter 201 and a voltage test lead; the voltmeter 201 is connected to the power supply terminal of the monitoring instrument 40 through the voltage test lead, and is used to test the power supply terminal voltage of the monitoring instrument 40.

[0034] In some embodiments, the fault detector further includes a housing 30 disposed outside the current module 10 and the voltage module 20.

[0035] Specifically, the fault detector is equipped with a casing 30 on the outside. The casing 30 can effectively protect the current module 10, voltage module 20 and other key components inside the fault detector from the influence and damage of the external environment, improve the durability and stability of the equipment, improve the appearance, prevent misoperation and external interference, and ensure the normal operation and long-term reliability of the equipment.

[0036] For current module 10, refer to Figure 2 , 3 As shown, the current module 10 consists of an ammeter 101, a function switch 102, a current testing component 103, a power supply module 104, and current test leads. The ammeter 101 is a passive 100mA DC LCD ammeter. The power supply module 104 is a 24V DC power supply, which can be built into the casing 30 or connected externally. The function switch 102 is a rotary knob that can be rotated to different ranges. In different ranges, the ammeter 101 connects to the corresponding current testing component 103 or power supply module 104. If the current testing component 103 is connected, the current test leads are connected to the data transmission line 50, and the current in the data transmission line 50 is tested to determine if a fault exists. If the power supply module 104 is connected, the current test leads are connected to the monitoring instrument 40, and the current in the monitoring instrument 40 is tested to determine if a fault exists. The current testing component 103 is built into the casing 30.

[0037] In some embodiments, the current module 10 further includes an adjustable potentiometer 105, which is used to adjust the current of the data transmission line 50 or the monitoring instrument 40.

[0038] Specifically, refer to Figure 2 , 3 As shown, the current module 10 also includes an adjustable potentiometer 105, which adjusts the current of the data transmission line 50 or the monitoring instrument 40. The current change of the ammeter 101 is observed to determine whether the data transmission line 50 or the monitoring instrument 40 is intact.

[0039] In some embodiments, the current test lead includes a positive current test lead 106 and a negative current test lead 107; one end of the positive current test lead 106 and the negative current test lead 107 is provided with a first clamp for connecting to the data transmission line 50 or the monitoring instrument 40; the other end of the positive current test lead 106 and the negative current test lead 107 is provided with a first quick aviation plug 108 for connecting to the current module 10.

[0040] Specifically, the current test lead consists of a negative current test lead 107 and a positive current test lead 106. The front end of the lead is connected to a clamp (positive red, negative black), and the end is a quick aviation plug. The housing 30 is provided with a socket. The clamp is connected to the data transmission line 50 or the monitoring instrument 40. The quick aviation plug is connected to the socket to test the current in the data transmission line 50 or the monitoring instrument 40.

[0041] In some embodiments, the current module 10 further includes a power switch 109, which is used to control the current module 10 to turn on or off. (Continue to refer to...) Figure 2 As shown, the current module 10 also includes a power switch 109, and current testing can only be performed when the power switch 109 is turned on.

[0042] The working principle of the current module 10 is as follows: The function switch 102 connects to the current test component 103. The ammeter 101 is connected in series with the data transmission line 50 through the positive and negative current test wires. The ammeter 101 displays the current value in the data transmission line 50, which is used to determine the transmission fault of the line. The current can also be adjusted by the adjustable potentiometer 105, and the current value of the ammeter 101 will change accordingly. By observing the change in the current value, it can be determined whether there is a fault point. When it is necessary to test whether instruments such as pressure and temperature transmitters are intact, the instrument connection line is disconnected, the function switch 102 is connected to the power module 104, and the positive and negative current test wires are connected in series with the input and output terminals of the monitoring instrument 40. The current can be adjusted by the adjustable potentiometer 105, and the current value of the ammeter 101 will change accordingly. The instrument is judged by combining the current value.

[0043] For voltage module 20, refer to Figure 2 , 3 As shown, the voltage module 20 consists of a voltmeter 201 and voltage test leads, etc. The voltage test leads are connected to the power supply terminal of the monitoring instrument 40. The voltage of the power supply terminal of the monitoring instrument 40 is displayed on-site by the voltmeter 201 to determine whether the power supply of the monitoring instrument 40 is faulty. The voltmeter 201 is an active voltmeter, which is also used to consume the false power when there is a loose connection in the data transmission line 50, so as to accurately measure the line voltage.

[0044] In some embodiments, the voltage test line includes a positive voltage test lead 202 and a negative voltage test lead 203; one end of the positive voltage test lead 202 and the negative voltage test lead 203 is provided with a second clamp for connecting to the power supply terminal of the monitoring instrument 40; the other end of the positive voltage test lead 202 and the negative voltage test lead 203 is provided with a second quick aviation plug 204 for connecting to the voltage module 20.

[0045] Specifically, the voltage test lead consists of a negative voltage test lead 203 and a positive voltage test lead 202 (positive red, negative black). The front end is equipped with a wire clamp for connecting to the power supply section of the monitoring instrument 40, and the end is a quick aviation plug that connects to the socket on the housing 30 for measuring the power supply voltage of the monitoring instrument 40.

[0046] In some embodiments, the voltage module 20 further includes a range switch 205, which controls the voltage module 20 to turn on or off. (Reference) Figure 2 As shown, the voltage module 20 also includes a range switch 205, and voltage testing can only be performed by turning on the range switch 205.

[0047] The working principle of voltage module 20 is as follows: voltmeter 201 is connected to the power supply side of data transmission line 50 through negative voltage test wire 203 and positive voltage test wire 202 to detect whether the power supply circuit is normal.

[0048] In summary, the working process of the fault detector provided in this embodiment is as follows: When the PC terminal of the data transmission system displays abnormal monitoring data, on-site personnel can use the fault detector to monitor the fault point. The process is as follows: When testing the data transmission line 50, determine the two disconnectable points on the data transmission line 50, connect the clamps of the current positive and negative test wires to the disconnectable points, connect the end quick aviation plug to the socket, turn on the power switch 109 and switch the function conversion switch 102 to the first position. At this time, the function conversion switch 102 is connected to the current testing component 103. By adjusting the adjustable potentiometer 105, different current values ​​of the data transmission line 50 can be achieved. The current value is displayed, and the presence of a fault can be determined by the current display. When testing the monitoring instrument 40, the clamps of the current positive and negative test leads are connected to the monitoring instrument 40, the power switch 109 is turned on, and the function switch 102 is switched to the second position. At this time, the function switch 102 is connected to the power module 104, and the power module 104 provides power to the monitoring instrument 40. Thus, the presence of a fault in the instrument can be determined by detecting the current of the monitoring instrument 40. When testing the power supply of the monitoring instrument 40, the voltage positive and negative test leads can be connected to the power supply terminal of the instrument, the power switch 109 is turned on, and the presence of a fault in the power supply can be measured.

[0049] like Figure 4 This is an application diagram of a fault detector provided in an embodiment of the present invention, such as... Figure 4 As shown, when the data monitoring screen of the server 60 of the data transmission system cannot display the data of the field monitoring instrument 40 normally, such as when the displayed external pressure is negative, the power supply voltage is measured to be 24 volts using a multimeter in voltage mode and 2 milliamps using milliamp mode, and replacing the field pressure transmitter does not solve the problem, the fault detector provided in this embodiment of the invention can be used for fault diagnosis.

[0050] First, go to the on-site monitoring instrument 40 and disconnect the circuit at disconnectable points A and B (these reference points are only for illustration; in practice, simply remove the external leads of the on-site monitoring instrument 40). Use the clamps of the voltage positive and negative test leads to check the power supply voltage on the power supply side to determine if the power supply of the monitoring instrument 40 is faulty. If necessary, rotate the function switch 102 to the first position, connect the current positive and negative test leads to disconnectable points A and B, and rotate the adjustable potentiometer 105 to adjust the current magnitude. Check the data transmission line 50 and the display value. Rotate the function switch 102 to the second position, connect the current positive and negative test leads to the terminals of the on-site monitoring instrument 40. The normal value should be between 4-20 mA. Assuming that the fault detector provided in this embodiment measures the power supply voltage of the monitoring instrument 40 to be 15 volts, then the power supply is determined to be fault-free. If the current of the data transmission line 50 is measured to be 2 mA, then the resistance of the data transmission line 50 is determined to be too high, causing a loose connection in the circuit. Locate the break in the line, eliminate it, and then solve the problem.

[0051] Based on the aforementioned embodiments, the current module is used in data transmission lines or monitoring instruments, and adjusting the current can detect whether the data transmission lines or monitoring instruments are faulty; the voltage module can be used to detect the power supply of field monitoring instruments on site; therefore, the fault detector provided in the embodiments of the present invention can be used directly to measure the working parameters of the data transmission system, filling the gap in data transmission system detection instruments and improving the efficiency of handling data transmission system faults.

[0052] This invention also provides a data transmission fault detection system. The data transmission fault detection system includes: a data transmission system and a fault detector as described above;

[0053] The data transmission system includes a monitoring instrument 40, a data transmission line 50, and a server 60. The monitoring instrument 40 transmits the collected monitoring data to the server 60 through the data transmission line 50. The fault detector is used to detect fault points in the data transmission system.

[0054] Those skilled in the art will understand that, for the sake of convenience and brevity, the specific working process and corresponding beneficial effects of the data transmission fault detection system described above can be found in the corresponding process in the aforementioned example, and will not be repeated here.

[0055] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0056] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A fault detector, characterized in that, Includes current modules and voltage modules; The current module is used to test the current of the data transmission line in the data transmission system in the first gear mode, and also to provide power to the monitoring instrument in the data transmission system to test the current of the monitoring instrument in the second gear mode. The voltage module is used to test the power supply voltage of the monitoring instruments in the data transmission system.

2. The fault detector according to claim 1, characterized in that, The current module includes an ammeter, a function switch, a current testing component, a power supply module, and current testing leads; When the function switch is in the first position, the ammeter is connected to the current testing component and connected to the data transmission line through the current testing line to test the current of the data transmission line. When the function switch is in the second position, the ammeter is connected to the power module and connected to the monitoring instrument via a current test lead to test the current of the monitoring instrument.

3. The fault detector according to claim 2, characterized in that, The current module also includes an adjustable potentiometer, which is used to adjust the current of the data transmission line or monitoring instrument.

4. The fault detector according to claim 2, characterized in that, The current test leads include a positive current test lead and a negative current test lead; One end of the positive current test lead and the negative current test lead is provided with a first clamp for connecting to the data transmission line or monitoring instrument; the other end of the positive current test lead and the negative current test lead is provided with a first quick aviation plug for connecting to the current module.

5. The fault detector according to any one of claims 2-4, characterized in that, The current module also includes a power switch, which is used to control the current module to be turned on or off.

6. The fault detector according to claim 1, characterized in that, The voltage module includes a voltmeter and voltage test leads; The voltmeter is connected to the power supply terminal of the monitoring instrument via the voltage test line, and is used to test the power supply terminal voltage of the monitoring instrument.

7. The fault detector according to claim 6, characterized in that, The voltage test leads include positive voltage test leads and negative voltage test leads; A second clamp is provided at one end of the positive voltage test lead and the negative voltage test lead for connecting to the power supply terminal of the monitoring instrument; a second quick aviation plug is provided at the other end of the positive voltage test lead and the negative voltage test lead for connecting to the voltage module.

8. The fault detector according to claim 6 or 7, characterized in that, The voltage module also includes a gear switch, which is used to control the voltage module to be turned on or off.

9. The fault detector according to claim 1, characterized in that, It also includes a casing disposed outside the current module and the voltage module.

10. A data transmission fault detection system, characterized in that, Includes a data transmission system and a fault detection instrument as described in any one of claims 1-9; The data transmission system includes monitoring instruments, data transmission lines, and a server. The monitoring instruments transmit the collected monitoring data to the server through the data transmission lines. The fault detector is used to detect fault points in the data transmission system.

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