Multi-terminal control valve based on multi-mode interconnection

Abstract

The invention discloses a multi-terminal control valve based on multi-mode interconnection, and relates to the technical field of valve control, and the multi-terminal control valve comprises a signal receiving module used for receiving a valve control signal; the signal detection module is used for extracting a control end identifier, a valve identifier, a valve control instruction identifier, a valve control instruction and control instruction execution time from the valve control signal; performing validity and conflict detection on the valve control instruction according to the control end identifier, the control valve identifier, the valve control instruction identifier and the control instruction execution time; generating a valve control instruction list according to the detection result; and a signal execution module. Advanced technologies such as the Internet of Things, cloud computing and wireless communication are integrated, flexible switching of multiple communication modes and synchronous operation of multiple control end valves are achieved, the intelligent level and the operation efficiency of the valve are improved, the installation and maintenance cost and the operation difficulty are reduced, and the valve control system is suitable for complex and dangerous places such as high altitude and chemical engineering.

Description

Technical Field

[0001] The present invention relates to the field of valve control technology, and in particular to a multi-terminal control valve based on multi-mode interconnection. Background Art

[0002] In the field of industrial automation, control valves, as key actuators, undertake important tasks such as regulating the pressure, flow and direction of fluid media. With the increasing complexity and intelligent demand of industrial production, the problems of traditional control valves in terms of single function, complex operation, high maintenance cost and difficulty in achieving remote and precise control are becoming increasingly prominent. Especially in complex industrial scenarios that require multi-mode interconnection and multi-terminal control, traditional valves can no longer meet the needs of efficiency, flexibility and safety.

[0003] In recent years, the rapid development of technologies such as the Internet of Things (IoT), cloud computing, and wireless communications has provided strong technical support for the intelligent upgrade of control valves. By integrating these advanced technologies, remote monitoring, real-time data collection, intelligent analysis, and multi-terminal collaborative control of control valves can be achieved, thereby greatly improving the automation level and operating efficiency of industrial production. However, high-end valve products that can truly achieve multi-mode interconnection and multi-terminal control are still relatively scarce in the market and cannot meet the growing market demand. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a multi-terminal control valve based on multi-mode interconnection, aiming to solve the deficiencies of traditional control valves in terms of function, operation, maintenance and remote control.

[0005] On the one hand, an embodiment of the present invention provides a multi-terminal control valve based on multi-mode interconnection, the multi-terminal control valve comprising:

[0006] A signal receiving module is used to receive valve control signals sent by a voice control terminal, a remote control terminal, a Bluetooth control terminal and a WIFI control terminal;

[0007] A signal detection module, used to extract the control end identifier, valve identifier, valve control instruction identifier, valve control instruction and control instruction execution time from the valve control signal, and perform validity and conflict detection on the valve control instruction according to the control end identifier, control valve identifier, valve control instruction identifier and control instruction execution time; and generate a valve control instruction list according to the detection results;

[0008] The signal execution module is used to control the switching operation of the valve according to the instruction sequence and time requirements in the valve control instruction list to ensure the correct execution of the instructions; at the same time, it monitors the valve status in real time and feeds back the execution result and valve status to the corresponding control end to achieve closed-loop control.

[0009] Preferably, the signal detection module comprises:

[0010] The validity detection unit is used to detect whether the control terminal identifier, control valve identifier, valve control instruction identifier, valve control instruction, and control instruction execution time meet the preset format requirements; when they do not meet the preset format requirements, an abnormal instruction signal is generated and the abnormal instruction signal is fed back to the corresponding control terminal.

[0011] Preferably, the signal detection module includes a conflict detection unit, and the conflict detection unit includes:

[0012] A configuration conflict detection unit is used to detect whether the valve control instruction is compatible with the current configuration of the valve;

[0013] A time conflict detection unit, used to detect whether there are multiple valve control instructions for switching the same valve at the same time; and

[0014] The logic conflict detection unit is used to detect whether the logic relationship between the valve control instruction of a valve and the valve control instruction of its associated valve conforms to the preset logic relationship.

[0015] Preferably, the configuration conflict detection unit is specifically used for:

[0016] When the valve control instruction is incompatible with the current configuration of the valve, an abnormal instruction signal is generated and fed back to the corresponding control terminal.

[0017] Preferably, the time conflict unit is specifically used for:

[0018] When there are multiple valve control instructions for switching the same valve in the same time period, the control end priority is determined according to the control end identifier and the valve identifier, the instruction type priority is determined according to the valve control instruction identifier, and the instruction priority is determined according to the control end priority and the instruction type priority.

[0019] Preferably, the logic conflict unit is specifically used for:

[0020] When it is detected that the logical relationship between a valve control instruction of a valve and the valve control instruction of an associated valve does not conform to the preset logical relationship, the instruction importance is determined according to the instruction priority and the valve correlation; the valve control instructions with small instruction importance are eliminated, abnormal instruction signals are generated, and the abnormal instruction signals are fed back to the corresponding control end.

[0021] Preferably, the calculation formula of the valve correlation is:

[0022]

[0023] Where, T(k) represents the valve correlation, n represents the total number of valves, and Z k (i, j) represents the correlation between valve i and valve j in valve cluster G when all k valves are abnormal, TS(t) represents the minimum number of valves between valve i and valve j, and q is the number of non-intersecting channels between valve i and valve j.

[0024] On the other hand, an embodiment of the present invention provides a control method for a multi-terminal control valve based on multi-mode interconnection, the method comprising:

[0025] Receive valve control signals sent by voice control terminal, remote control terminal, Bluetooth control terminal and WIFI control terminal;

[0026] Extract the control end identifier, valve identifier, valve control instruction identifier, valve control instruction and control instruction execution time from the valve control signal, and perform validity and conflict detection on the valve control instruction according to the control end identifier, control valve identifier, valve control instruction identifier and control instruction execution time; generate a valve control instruction list according to the detection results;

[0027] According to the instruction sequence and time requirements in the valve control instruction list, the valve switching operation is controlled to ensure the correct execution of the instructions; at the same time, the valve status is monitored in real time, and the execution result and valve status are fed back to the corresponding control end to achieve closed-loop control.

[0028] A multi-terminal control valve based on multi-mode interconnection and a control method thereof provided by an embodiment of the present invention have the following significant effects:

[0029] 1) Improved control flexibility and convenience: By integrating multiple control modes such as voice control, Bluetooth control, remote control and WIFI control, operators can flexibly choose the most appropriate control method according to actual needs and scenarios, which improves the convenience and efficiency of operation and is suitable for complex and dangerous places such as high altitude and chemical industries.

[0030] 2) Enhanced control reliability and safety: The signal detection module performs validity and conflict detection on the received valve control signals to ensure that only correct and error-free instructions are executed, avoiding potential risks caused by erroneous or conflicting operations.

[0031] 3) Real-time monitoring and closed-loop control are realized: The signal execution module is not only responsible for executing control instructions, but also monitors the valve status in real time, and feeds back the execution results and valve status to the corresponding control end, realizing closed-loop control and improving the reliability and stability of the system.

[0032] 4) Improved the level of industrial automation and intelligence: The multi-terminal control valve and control method of the present invention significantly improve the level of industrial automation and intelligence by integrating multiple advanced technologies and algorithms, and provide a new solution for valve control in the industrial field. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for the specific embodiments or the description of the prior art. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual scale.

[0034] Figure 1 A schematic diagram of the structure of a multi-terminal control valve based on multi-mode interconnection provided by an embodiment of the present invention;

[0035] Figure 2 A flow chart of a control method for a multi-terminal control valve based on multi-mode interconnection provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0036] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0037] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0038] Example 1

[0039] like Figure 1 As shown, an embodiment of the present invention provides a multi-terminal control valve based on multi-mode interconnection, and the multi-terminal control valve includes:

[0040] The signal receiving module is used to receive valve control signals sent by the voice control terminal, remote control terminal, Bluetooth control terminal and WIFI control terminal.

[0041] The embodiment of the present invention integrates multiple control modes such as voice control terminal, remote control terminal, Bluetooth control terminal and WIFI control terminal; the valve control signals sent by these control terminals are uniformly received and processed through the signal receiving module, which is particularly suitable for complex and dangerous places such as high altitude and chemical industry, and realizes diversified remote control functions of valves in these environments, which is beneficial to improving the safety and convenience of operation.

[0042] It should be noted that the design of the signal receiving module takes into account the complexity and diversity of the industrial environment, ensuring that valve control signals from different control terminals can be stably received under various conditions. At the same time, the module also has signal filtering and anti-interference functions to further improve the accuracy and reliability of the signal.

[0043] In a large chemical plant or oil refinery, operators may need to monitor and control multiple valves remotely in the control room. Traditional operation methods may require manual input of instructions or use of touch screens, but in some emergency situations, voice control can respond faster. Industrial-grade voice recognition terminals or industrial tablets with integrated voice recognition functions. Operators can directly speak control instructions such as "open valve No. 2 50%" or "urgently close all emergency shut-off valves" through a microphone worn or a voice input device in the control room. Improve operational efficiency, reduce the risk of misoperation, and especially respond quickly in emergency situations.

[0044] In industrial situations where close-range, wireless control is required, the Bluetooth control terminal provides a convenient way of operation. Through Bluetooth pairing with the Bluetooth receiver on the valve, close-range wireless control is achieved. The operator can send control instructions directly through the controller near the valve without wired connection. Flexible and convenient, suitable for temporary or close-range control tasks, reducing wiring complexity and cost.

[0045] In a remote monitoring center or a place with wide coverage of WIFI, the control signal is transmitted from the remote monitoring center or control room to the valve controller through the WIFI network to realize remote monitoring and control of the valve. The operator can send control instructions through a computer or touch screen in the control room, and the valve status information will be fed back to the monitoring center in real time. The voice control terminal, Bluetooth control terminal and WIFI control terminal can be flexibly selected and used in combination according to specific control requirements and industrial environment. The voice control terminal, Bluetooth control terminal and WIFI control terminal can be the same terminal device or different terminal devices, which is not limited in this embodiment.

[0046] The remote control terminal is used to provide a remote control function of 300 to 500 meters.

[0047] A signal detection module is used to extract the control end identifier, valve identifier, valve control instruction identifier, valve control instruction and control instruction execution time from the valve control signal, and perform validity and conflict detection on the valve control instruction according to the control end identifier, control valve identifier, valve control instruction identifier and control instruction execution time; and generate a valve control instruction list according to the detection results.

[0048] In an embodiment of the present invention, the signal detection module includes: a validity detection unit, which is used to detect whether the control end identifier, control valve identifier, valve control instruction identifier, valve control instruction, and control instruction execution time meet the preset format requirements; when they do not meet the preset format requirements, an abnormal instruction signal is generated, and the abnormal instruction signal is fed back to the corresponding control end.

[0049] It should be noted that the validity detection unit is responsible for detecting whether the control terminal identification, control valve identification, valve control instruction identification, valve control instruction and control instruction execution time meet the preset format requirements. This is an important step to ensure the correctness and validity of the control instruction, which helps prevent erroneous or invalid instructions from being executed.

[0050] In an embodiment of the present invention, the signal detection module includes a conflict detection unit, which includes: a configuration conflict detection unit, used to detect whether the valve control instruction is compatible with the current configuration of the valve; a time conflict detection unit, used to detect whether there are multiple valve control instructions for switching the same valve at the same time; and a logic conflict detection unit, used to detect whether the logical relationship between the valve control instruction of a valve and the valve control instruction of an associated valve conforms to a preset logical relationship.

[0051] In the embodiment of the present invention, the configuration conflict detection unit is specifically used to: generate an abnormal instruction signal when the valve control instruction is incompatible with the current configuration of the valve, and feed back the abnormal instruction signal to the corresponding control end.

[0052] When the configuration conflict detection unit detects that the valve control command is incompatible with the current valve configuration, it will generate an abnormal command signal and feed it back to the corresponding control end. This helps to promptly remind the operator of the mismatch between the command and the configuration and make corresponding adjustments or corrections.

[0053] In an embodiment of the present invention, the time conflict unit is specifically used for: when there are multiple valve control instructions for switching the same valve in the same time period, determining the control end priority according to the control end identifier and the valve identifier, determining the instruction type priority according to the valve control instruction identifier, and determining the instruction priority according to the control end priority and the instruction type priority.

[0054] When there are multiple instructions for opening and closing the same valve in the same time period, the time conflict detection unit will determine the control end priority according to the control end identifier and valve identifier, determine the instruction type priority according to the valve control instruction identifier, and then combine these two priorities to determine the final instruction priority. This mechanism helps ensure that when multiple instructions conflict, they can be executed correctly in order of priority.

[0055] In an embodiment of the present invention, the logic conflict unit is specifically used for: when it is detected that the logical relationship between a valve control instruction of a valve and a valve control instruction of an associated valve does not conform to a preset logical relationship, determining the instruction importance according to the instruction priority and the valve association; eliminating valve control instructions with small instruction importance, generating abnormal instruction signals, and feeding back the abnormal instruction signals to the corresponding control end.

[0056] For example, suppose that in a large chemical plant, there are two adjacent valves V1 and V2, which control the feed ports of two adjacent reactors. According to the process requirements, when V1 is opened, V2 must remain closed to prevent material mixing and abnormal reactions. Now, we have received two control instructions: Instruction A: Open valve V1. Instruction B: Open valve V2.

[0057] The working process of the logic conflict unit is: analyze whether the logical relationship between these control instructions meets the preset process requirements. In this example, the preset logical relationship is "when V1 is turned on, V2 must be turned off". By comparing the current control instructions with the preset logical relationship, the inspection unit finds that the simultaneous existence of instructions A and B will cause a logical conflict, because both instructions require the opening of different valves, and according to the process requirements, these two valves cannot be opened at the same time. Once a logical conflict is detected, the inspection unit will handle these conflicts according to preset rules or algorithms. In this example, possible processing methods include: giving priority to the execution of instructions with higher priority (if there is a priority setting). Eliminating or modifying the instructions that cause the conflict (for example, if instruction B is an erroneous operation or unnecessary, it can be eliminated or modified to an instruction to close V2). Generate an abnormal instruction signal and feed it back to the corresponding control end to prompt the operator to pay attention and manually resolve the conflict. Finally, the processing results will be fed back to the system or operator. In this example, it may be necessary to generate an abnormal report or warning message to indicate the existence of a logical conflict and suggest corresponding solutions.

[0058] When the logic conflict detection unit detects that the logical relationship between valve control instructions does not meet the preset requirements, it will determine the importance of the instructions based on the instruction priority and valve correlation. Then, it will eliminate the valve control instructions with low instruction importance and generate abnormal instruction signals to feed back to the corresponding control end. This mechanism helps to ensure that more important instructions can be retained and executed in the event of a logic conflict.

[0059] In the embodiment of the present invention, the calculation formula of the valve correlation is:

[0060]

[0061] Where, T(k) represents the valve correlation, n represents the total number of valves, and Z k(i, j) represents the correlation between valve i and valve j in valve cluster G when all k valves are abnormal, TS(t) represents the minimum number of valves between valve i and valve j, and q represents the number of non-intersecting channels between valve i and valve j. The number of channels is the number of control paths that can be connected by multiple valves.

[0062] The calculation formula of valve correlation takes into account the physical position relationship between valves and their mutual influence. This formula evaluates the correlation between them by calculating the minimum number of valves and the number of non-intersecting channels between valves. In actual industrial scenarios, this correlation calculation is very important for understanding and evaluating the logical relationship between different valve control instructions, which helps to make more reasonable decisions when performing logical conflict detection.

[0063] The signal execution module is used to control the switching operation of the valve according to the instruction sequence and time requirements in the valve control instruction list to ensure the correct execution of the instructions; at the same time, it monitors the valve status in real time and feeds back the execution result and valve status to the corresponding control end to achieve closed-loop control.

[0064] Example 2

[0065] like Figure 2 As shown, an embodiment of the present invention provides a control method for a multi-terminal control valve based on multi-mode interconnection, the method comprising:

[0066] Receive valve control signals sent by voice control terminal, remote control terminal, Bluetooth control terminal and WIFI control terminal;

[0067] Extract the control end identifier, valve identifier, valve control instruction identifier, valve control instruction and control instruction execution time from the valve control signal, and perform validity and conflict detection on the valve control instruction according to the control end identifier, control valve identifier, valve control instruction identifier and control instruction execution time; generate a valve control instruction list according to the detection results;

[0068] According to the instruction sequence and time requirements in the valve control instruction list, the valve switching operation is controlled to ensure the correct execution of the instructions; at the same time, the valve status is monitored in real time, and the execution result and valve status are fed back to the corresponding control end to achieve closed-loop control.

[0069] It should be understood that the control method of a multi-terminal control valve based on multi-mode interconnection provided in an embodiment of the present invention and the multi-terminal control valve based on multi-mode interconnection provided in the above embodiment are based on the same inventive concept. For more specific working principles of each step in the embodiment of the present invention, reference can be made to the above embodiment and will not be repeated in the embodiment of the present invention.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A multi-terminal control valve based on multi-mode interconnection, characterized in that: include: A signal receiving module is used to receive valve control signals sent by a voice control terminal, a remote control terminal, a Bluetooth control terminal and a WIFI control terminal; A signal detection module, used to extract the control end identifier, valve identifier, valve control instruction identifier, valve control instruction and control instruction execution time from the valve control signal, and perform validity and conflict detection on the valve control instruction according to the control end identifier, control valve identifier, valve control instruction identifier and control instruction execution time; and generate a valve control instruction list according to the detection results; The signal execution module is used to control the switching operation of the valve according to the instruction sequence and time requirements in the valve control instruction list to ensure the correct execution of the instructions; at the same time, it monitors the valve status in real time and feeds back the execution result and valve status to the corresponding control end to achieve closed-loop control.

2. A multi-terminal control valve based on multi-mode interconnection according to claim 1, characterized in that: The signal detection module comprises: The validity detection unit is used to detect whether the control terminal identifier, control valve identifier, valve control instruction identifier, valve control instruction, and control instruction execution time meet the preset format requirements; when they do not meet the preset format requirements, an abnormal instruction signal is generated and the abnormal instruction signal is fed back to the corresponding control terminal.

3. A multi-terminal control valve based on multi-mode interconnection according to claim 2, characterized in that: The signal detection module includes a conflict detection unit, and the conflict detection unit includes: A configuration conflict detection unit is used to detect whether the valve control instruction is compatible with the current configuration of the valve; a time conflict detection unit, used to detect whether there are multiple valve control instructions for switching the same valve at the same time; and The logic conflict detection unit is used to detect whether the logic relationship between the valve control instruction of a valve and the valve control instruction of its associated valve conforms to the preset logic relationship.

4. The multi-terminal control valve based on multi-mode interconnection according to claim 3 is characterized in that: The configuration conflict detection unit is specifically used for: When the valve control instruction is incompatible with the current configuration of the valve, an abnormal instruction signal is generated and fed back to the corresponding control terminal.

5. The multi-terminal control valve based on multi-mode interconnection according to claim 4, characterized in that: The time conflict unit is specifically used for: When there are multiple valve control instructions for switching the same valve in the same time period, the control end priority is determined according to the control end identifier and the valve identifier, the instruction type priority is determined according to the valve control instruction identifier, and the instruction priority is determined according to the control end priority and the instruction type priority.

6. A multi-terminal control valve based on multi-mode interconnection according to claim 5, characterized in that: The logic conflict unit is specifically used for: When it is detected that the logical relationship between a valve control instruction of a valve and the valve control instruction of an associated valve does not conform to the preset logical relationship, the instruction importance is determined according to the instruction priority and the valve correlation; the valve control instructions with small instruction importance are eliminated, abnormal instruction signals are generated, and the abnormal instruction signals are fed back to the corresponding control end.

7. A multi-terminal control valve based on multi-mode interconnection according to claim 6, characterized in that: The calculation formula of the valve correlation is: Where, T(k) represents the valve correlation, n represents the total number of valves, and Z k (i, j) represents the correlation between valve i and valve j in valve cluster G when all k valves are abnormal, TS(t) represents the minimum number of valves between valve i and valve j, and q is the number of non-intersecting channels between valve i and valve j.

8. A control method for a multi-terminal control valve based on multi-mode interconnection, characterized in that: include: Receive valve control signals sent by voice control terminal, remote control terminal, Bluetooth control terminal and WIFI control terminal; Extract the control end identifier, valve identifier, valve control instruction identifier, valve control instruction and control instruction execution time from the valve control signal, and perform validity and conflict detection on the valve control instruction according to the control end identifier, control valve identifier, valve control instruction identifier and control instruction execution time; generate a valve control instruction list according to the detection results; According to the instruction sequence and time requirements in the valve control instruction list, the valve switching operation is controlled to ensure the correct execution of the instructions; at the same time, the valve status is monitored in real time, and the execution result and valve status are fed back to the corresponding control end to achieve closed-loop control.

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