Remote control valve state monitoring device and redundancy monitoring method thereof

Abstract

The invention provides a remote control valve state monitoring device and a redundancy monitoring method thereof, and the device comprises a valve switch sensor which is connected with a valve switch, and the valve switch is provided with a valve opening indicating lamp and a valve closing indicating lamp; wherein the valve body of the remote control valve is connected with the valve switch; the camera is arranged near the valve opening indicating lamp and the valve closing indicating lamp; the flow meter is communicated with a pipeline connected with the valve body; the programmable logic controller is respectively connected with the valve switch sensor and the flow meter; and the wireless network switch is respectively connected with the camera and the programmable logic controller. The opening and closing state of the valve is judged at a time through the valve opening and closing sensor; a flowmeter is installed at the related position of the valve and used for secondarily judging the opening and closing state of the valve; video monitoring is connected into the monitoring device, and the opening and closing state of the valve is confirmed for three times through a video monitoring system; remote control can be achieved through external equipment or an upper computer, field unattended operation is achieved, and field risks are reduced.

Description

Technical Field

[0001] The invention relates to a monitoring device for a remote control valve state and a redundant monitoring method thereof. Background Art

[0002] Existing remote control valve systems mostly use valve switch sensors to determine the valve switch status. If the valve switch sensor is damaged or does not work properly, it is very easy to misjudge the status, causing risks. For example, in a pipeline mechanical valve switch monitoring system with patent publication number CN205155328U, the monitoring sensor module only monitors the rotation direction of the mechanical valve, which is easy to misjudge the valve switch status.

[0003] Moreover, the existing remote control valve system has poor remote capability and flexibility, and requires multiple operators to cooperate in observation and operation. Summary of the invention

[0004] The object of the present invention is to provide a redundant state monitoring device for a remote control valve and a redundant monitoring method thereof.

[0005] In order to solve the above problems, the present invention provides a monitoring device for a remote control valve state, comprising:

[0006] A valve switch sensor connected to the valve switch, the valve switch being provided with a valve opening indicator light and a valve closing indicator light; wherein the valve body of the remote control valve is connected to the valve switch;

[0007] A camera disposed near the valve opening indicator light and the valve closing indicator light is used to collect images or videos of the valve opening indicator light and the valve closing indicator light;

[0008] A flow meter, the flow meter is connected to a pipeline connected to the valve body;

[0009] A programmable logic controller, wherein the programmable logic controller is connected to the valve switch sensor and the flow meter respectively;

[0010] A wireless network switch, wherein the wireless network switch is connected to the camera and the programmable logic controller respectively, and the image or video of the valve opening indicator light and the valve closing indicator light collected by the camera is transmitted to the programmable logic controller through the wireless network switch;

[0011] A control device is connected to the wireless network switch in a wired or wireless manner.

[0012] Furthermore, in the above-mentioned remote control valve status monitoring device, the control device includes: a host computer, an HMI screen or a remote client.

[0013] Furthermore, in the above-mentioned remote control valve status monitoring device, the wireless network switch is connected and communicated with the host computer, the HMI screen and the remote client in a wired or wireless manner.

[0014] Furthermore, in the above-mentioned remote control valve status monitoring device, the DI port of the programmable logic controller is connected to the flow meter; the DO port of the programmable logic controller is connected to the relay group, and the relay group is connected to the valve switch; the AI ​​port of the programmable logic controller is connected to the valve switch sensor; and the AO port of the programmable logic controller is connected to the switching device of the valve switch.

[0015] Furthermore, in the above-mentioned remote control valve status monitoring device, the valve switch is connected to the programmable logic controller through a relay.

[0016] Furthermore, in the above-mentioned remote control valve status monitoring device, the remote client includes any one of a smart phone, a smart watch and a tablet computer.

[0017] Furthermore, in the above-mentioned remote control valve status monitoring device, the camera includes: a wired camera and / or a wireless camera.

[0018] Furthermore, in the above-mentioned remote control valve status monitoring device, a bracket is also provided on the housing of the valve switch, and the camera is provided on the bracket.

[0019] Furthermore, the above-mentioned remote control valve status monitoring device also includes an electrical control box, and the programmable logic controller is arranged in the control box.

[0020] According to another aspect of the present invention, a remote control valve state redundancy monitoring method is provided, using any of the remote control valve state monitoring devices described above, the method comprising when the valve is open, the programmable logic controller performs the following steps, including:

[0021] The valve switch sensor collects the valve switch signal of the remote control valve, and determines whether the remote control valve is fully opened based on the valve switch signal;

[0022] If it is fully opened, the signal of the flow meter is collected, and whether there is flow in the pipeline of the remote control valve is determined based on the signal of the flow meter. If there is flow, the valve is determined to be in the open state; if there is no flow, the video signal of the camera is collected, and whether the valve opening indicator light is on based on the video signal. If the valve opening indicator light is green, if the valve opening indicator light is on, the valve is determined to be in the open state; if the valve opening indicator light is not on, the valve is determined to be in the closed state, and the corresponding alarm is displayed through the electrical control box;

[0023] If it is not fully opened, the signal of the flow meter is collected, and based on the signal of the flow meter, it is determined whether there is flow in the pipeline of the remote control valve. If there is flow, the valve is determined to be in the open state; if there is no flow, the video signal of the camera is collected, and based on the video signal, it is determined whether the valve opening indicator light is on. If the valve opening indicator light is green, if the valve opening indicator light is on, the valve is determined to be in the open state; if the valve opening indicator light is not on, the valve is determined to be in the closed state, and the corresponding alarm is displayed through the electrical control box.

[0024] Furthermore, the above method further includes: when the valve is closed, the programmable logic controller performs the following steps, including

[0025] The valve switch sensor collects the valve switch signal of the remote control valve, and determines whether the remote control valve is fully closed based on the valve switch signal;

[0026] If it is fully closed, the signal of the flow meter is collected, and whether there is flow in the pipeline of the remote control valve is determined based on the signal of the flow meter. If there is no flow, the valve is determined to be in the closed state; if there is flow, the video signal of the camera is collected, and whether the valve closed indicator light is on based on the video signal. If the valve closed indicator light is red, if the valve closed indicator light is not on, it is determined that the valve is stuck and the valve is in the open state, and the corresponding alarm is displayed through the electrical control box; if the valve closed indicator light is on, it is determined that the valve is leaking, and the corresponding alarm is displayed through the electrical control box;

[0027] If it is not fully closed, the signal of the flow meter is collected, and based on the signal of the flow meter, it is determined whether there is flow in the pipeline of the remote control valve. If there is no flow, the valve is determined to be in a closed state; if there is flow, the video signal of the camera is collected, and based on the video signal, it is determined whether the valve closed indicator light is on. If the valve closed indicator light is red, if the valve closed indicator light is not on, it is determined that the valve is stuck and the valve is in an open state, and a corresponding alarm is displayed through the electrical control box; if the valve closed indicator light is on, it is determined that the valve is leaking, and a corresponding alarm is displayed through the electrical control box.

[0028] Compared with the prior art, the present invention uses a valve switch sensor to determine the valve switch status once; installs a flow meter at a valve-related position and uses the flow meter to determine the valve switch status twice; accesses the monitoring device system through video monitoring and confirms the valve switch status three times through the video monitoring system; and can be remotely controlled by external equipment or a host computer to achieve unmanned on-site operation and reduce on-site risks.

[0029] In addition, the present invention can integrate the switch state of the valve switch sensor, the switch images of the valve opening indicator light and the valve closing indicator light collected by the camera, and the signal of whether there is flow in the remote control valve collected by the flow meter, and provide them to the programmable logic controller as a basis for accurately judging the valve switch state of the remote control valve. The staff can obtain the data of the valve switch sensor, video monitoring, and flow meter through the control device, and determine the state of the valve switch from multiple angles to ensure safety.

[0030] In terms of control ideas, the present invention collects the current status information of the remote control valve through valve switch sensors, flow meters, and video surveillance cameras, and after comprehensive comparison by a programmable logic controller, determines the current status of the remote control valve and sends it to a remote device through a wireless network switch and a communication interface or WIFI; in addition, external control signals can be collected through the communication interface, transmitted to the programmable logic controller through the wireless network switch, and the current status of the remote control valve is sent. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of a remote control valve status monitoring device according to an embodiment of the present invention;

[0032] Figure 2 It is a schematic diagram of the installation of a remote control valve status monitoring device according to an embodiment of the present invention;

[0033] Figure 3 It is a connection diagram of a remote control valve status monitoring device according to an embodiment of the present invention;

[0034] Figure 4 is a flow chart of redundant monitoring of the closed state of a remote control valve according to an embodiment of the present invention;

[0035] Figure 5 4 is a flow chart of redundant monitoring of the closed state of a remote control valve according to an embodiment of the present invention. DETAILED DESCRIPTION

[0036] In the following description, the present invention is described with reference to various embodiments. However, those skilled in the art will recognize that the various embodiments may be implemented without one or more specific details or with other alternative and / or additional methods, materials or components. In other cases, well-known structures, materials or operations are not shown or described in detail to avoid obscuring the inventive point of the present invention. Similarly, for the purpose of explanation, specific quantities, materials and configurations are set forth to provide a comprehensive understanding of the embodiments of the present invention. However, the present invention is not limited to these specific details.

[0037] It should be noted that the components in the figures may be shown exaggeratedly for the sake of illustration and are not necessarily true to scale. In the figures, identical or functionally identical components are provided with the same reference numerals.

[0038] In the present invention, unless otherwise specified, "disposed on...", "disposed above..." and "disposed on..." do not exclude the presence of an intermediate between the two. In addition, "disposed on or above..." merely indicates the relative positional relationship between two components, and in certain circumstances, such as after reversing the product direction, it can also be converted to "disposed below or below...", and vice versa.

[0039] In the present invention, each embodiment is only intended to illustrate the aspects of the present invention and should not be construed as limiting.

[0040] In the present invention, unless otherwise specified, the quantifiers "a", "an" and "an" do not exclude the presence of a plurality of elements.

[0041] In the present invention, the term “connected” may refer to both being directly connected or being indirectly connected via an intermediate element.

[0042] In the present application, the term "configuration" refers to the setting of the shape, structure, material and / or function of the target object to achieve the desired technical effect, wherein "configuration" includes a variety of alternative technical means for achieving the technical effect, which become obvious under the teaching of the present application.

[0043] In this specification, reference to "one embodiment" or "the embodiment" means that a particular feature, structure, or characteristic described in conjunction with the embodiment is included in at least one embodiment of the present invention. The phrase "in one embodiment" appearing in various places in this specification does not necessarily all refer to the same embodiment.

[0044] It should be noted that the embodiments of the present invention describe the method steps in a specific order, but this is only for the purpose of illustrating the specific embodiment, rather than limiting the order of the steps. On the contrary, in different embodiments of the present invention, the order of the steps can be adjusted according to the actual application requirements.

[0045] like Figures 1 to 3 As shown, the present invention provides a monitoring device for a remote control valve state, comprising:

[0046] A valve switch sensor 2 connected to a valve switch 1, wherein the valve switch 1 is provided with a valve opening indicator light and a valve closing indicator light; wherein a valve body 3 of a remote control valve is connected to the valve switch 1;

[0047] A camera 4 is provided near the valve opening indicator light and the valve closing indicator light, and is used to collect images or videos of the valve opening indicator light and the valve closing indicator light;

[0048] A flow meter 5, the flow meter is connected to a pipeline 6 connected to the valve body 3;

[0049] A programmable logic controller (PLC) 7, wherein the programmable logic controller 7 is connected to the valve switch sensor 2 and the flow meter 5 respectively;

[0050] A wireless network switch 8, wherein the wireless network switch 8 is connected to the camera 4 and the programmable logic controller 7 respectively, and the image or video of the valve opening indicator light and the valve closing indicator light collected by the camera 4 is transmitted to the programmable logic controller 7 through the wireless network switch 8;

[0051] A control device is connected to the wireless network switch 8 via a wired or wireless method.

[0052] Here, the present invention can integrate the switch state of the valve switch sensor, the switch images of the valve open indicator light and the valve close indicator light collected by the camera, and the signal of whether there is flow in the remote control valve collected by the flow meter, and provide them to the programmable logic controller as a basis for accurately judging the valve switch state of the remote control valve. The staff can obtain the data of the valve switch sensor, video monitoring, and flow meter through the control device, and determine the state of the valve switch from multiple angles to ensure safety.

[0053] In some embodiments of the present invention, the control device includes: a host computer 9, an HMI screen 10 or a remote client 11. The wireless network switch is connected and communicated with the host computer, the HMI screen and the remote client 11 by wired or wireless means to remotely control the valve switch of the remote control valve; the wireless network switch can also be connected to other external devices. Here, the valve switch, valve switch sensor, camera and flow meter can be remotely controlled through other external devices or a host computer, so that the site is unattended and the risk on site is reduced.

[0054] Optionally, the control device is connected and communicated with the remote client wirelessly. Optionally, the remote client may include various mobile intelligent terminals, including any one of a smart phone, a smart watch, and a tablet computer. The present invention can send instructions through any handheld networked external device through a network cable to the remote control valve switch, valve switch sensor, camera and flow meter through the PLC, and allow external devices to monitor and control the remote control valve switch, valve switch sensor, camera and flow meter of the present invention through Ethernet, thereby realizing remote control of the valve switch, valve switch sensor, camera and flow meter, realizing unattended on-site operation, and reducing on-site risks.

[0055] Optionally, the camera includes: a wired camera and / or a wireless camera.

[0056] Preferably, a bracket is also provided on the housing of the valve switch, and the camera is arranged on the bracket.

[0057] Preferably, the valve switch is connected to the programmable logic controller via a relay.

[0058] Preferably, the present invention may further include an electrical control box, wherein the programmable logic controller (PLC) is disposed in the control box, and the programmable logic controller may be connected to the touch screen via a wireless network switch.

[0059] Here, the current status information of the remote control valve is collected through the valve switch sensor, flow meter, and video surveillance camera. After comprehensive comparison of each status information, the current status of the remote control valve can be judged accordingly.

[0060] Comprehensive logic judgment and control command collection can be performed through PLC and sent to the touch screen; control commands can be sent to PLC through the touch screen, and the current status information of the remote control valve and equipment alarm can be obtained in a visual manner.

[0061] Furthermore, in the above-mentioned remote control valve status monitoring device, the DI port of the programmable logic controller is connected to the flow meter; the DO port of the programmable logic controller is connected to the relay group, and the relay group is connected to the valve switch; the AI ​​port of the programmable logic controller is connected to the valve switch sensor; and the AO port of the programmable logic controller is connected to the switching device of the valve switch.

[0062] like Figure 4 According to another aspect of the present invention, a remote control valve state redundancy monitoring method is also provided, comprising: when the valve is opened, the programmable logic controller performs the following steps, including:

[0063] Step S11, collecting the valve switch signal of the remote control valve through the valve switch sensor, and judging whether the remote control valve is fully opened based on the valve switch signal;

[0064] Step S12: if the valve is fully opened, the signal of the flow meter is collected, and whether there is flow in the pipeline of the remote control valve is determined based on the signal of the flow meter. If there is flow, the valve is determined to be in an open state; if there is no flow, the video signal of the camera is collected, and whether the valve opening indicator light is on based on the video signal. If the valve opening indicator light is green, if the valve opening indicator light is on, the valve is determined to be in an open state; if the valve opening indicator light is not on, the valve is determined to be in a closed state, and a corresponding alarm is displayed through the electrical control box;

[0065] Step S13, if it is not fully opened, collect the signal of the flow meter, and judge whether there is flow in the pipeline of the remote control valve based on the signal of the flow meter. If there is flow, judge that the valve is in the open state; if there is no flow, collect the video signal of the camera, and judge whether the valve opening indicator light is on based on the video signal. If the valve opening indicator light is green, if the valve opening indicator light is on, judge that the valve is in the open state; if the valve opening indicator light is not on, judge that the valve is in the closed state, and display the corresponding alarm through the electrical control box.

[0066] Here, this embodiment takes the control process of opening a valve as an example. Figure 4 shown.

[0067] like Figure 5 As shown, in some embodiments of the present invention, it also includes: when the valve is closed, the programmable logic controller performs the following steps, including

[0068] Step S21, collecting the valve switch signal of the remote control valve through the valve switch sensor, and judging whether the remote control valve is fully closed based on the valve switch signal;

[0069] Step S22, if the valve is fully closed, the signal of the flow meter is collected, and whether there is flow in the pipeline of the remote control valve is determined based on the signal of the flow meter. If there is no flow, the valve is determined to be in a closed state; if there is flow, the video signal of the camera is collected, and whether the valve closed indicator light is on based on the video signal. If the valve closed indicator light is red, if the valve closed indicator light is not on, it is determined that the valve is stuck and the valve is in an open state, and a corresponding alarm is displayed through the electrical control box; if the valve closed indicator light is on, it is determined that the valve is leaking, and a corresponding alarm is displayed through the electrical control box;

[0070] Step S22, if it is not fully closed, collect the signal of the flow meter, and judge whether there is flow in the pipeline of the remote control valve based on the signal of the flow meter. If there is no flow, judge that the valve is in the closed state; if there is flow, collect the video signal of the camera, and judge whether the valve closed indicator light is on based on the video signal. If the valve closed indicator light is red, if the valve closed indicator light is not on, it is judged that the valve is stuck and the valve is in the open state, and the corresponding alarm is displayed through the electrical control box; if the valve closed indicator light is on, it is judged that the valve is leaking, and the corresponding alarm is displayed through the electrical control box.

[0071] The present invention uses a valve switch sensor to determine the valve switch state once; installs a flow meter at a valve-related position and uses the flow meter to determine the valve switch state for a second time; accesses the system through video monitoring and confirms the valve switch state three times through the video monitoring system; and can be remotely controlled by an external device or a host computer to achieve unattended operation on site and reduce on-site risks.

[0072] In terms of control ideas, the present invention collects the current status information of the remote control valve through valve switch sensors, flow meters, and video surveillance cameras, and judges the current status of the remote control valve after comprehensive comparison by a programmable logic controller, and sends it to a remote device through a wireless network switch and a communication interface or WIFI; in addition, external control signals can be collected through the communication interface, transmitted to the PLC through the wireless network switch, and the current status of the remote control valve is sent.

[0073] Although various embodiments of the present invention are described above, it should be understood that they are presented as examples only and not as limitations. It is obvious to those skilled in the relevant art that various combinations, modifications and changes can be made thereto without departing from the spirit and scope of the present invention. Therefore, the breadth and scope of the present invention disclosed herein should not be limited by the exemplary embodiments disclosed above, but should only be defined according to the attached claims and their equivalents.

Claims

1. A remote control valve status monitoring device, characterized in that: include: A valve switch sensor connected to the valve switch, the valve switch being provided with a valve opening indicator light and a valve closing indicator light; wherein the valve body of the remote control valve is connected to the valve switch; A camera disposed near the valve opening indicator light and the valve closing indicator light is used to collect images or videos of the valve opening indicator light and the valve closing indicator light; A flow meter, the flow meter is connected to a pipeline connected to the valve body; A programmable logic controller, wherein the programmable logic controller is connected to the valve switch sensor and the flow meter respectively; A wireless network switch, wherein the wireless network switch is connected to the camera and the programmable logic controller respectively, and the image or video of the valve opening indicator light and the valve closing indicator light collected by the camera is transmitted to the programmable logic controller through the wireless network switch; A control device is connected to the wireless network switch in a wired or wireless manner.

2. The remote control valve status monitoring device according to claim 1, characterized in that: The control device includes: a host computer, an HMI screen or a remote client; the wireless network switch is connected and communicated with the host computer, the HMI screen and the remote client in a wired or wireless manner.

3. The remote control valve status monitoring device according to claim 1, characterized in that: The valve switch is connected to the programmable logic controller via a relay.

4. The remote control valve status monitoring device according to claim 1, characterized in that: The DI port of the programmable logic controller is connected to the flow meter; the DO port of the programmable logic controller is connected to the relay group, and the relay group is connected to the valve switch; the AI ​​port of the programmable logic controller is connected to the valve switch sensor; the AO port of the programmable logic controller is connected to the switching device of the valve switch.

5. The remote control valve status monitoring device according to claim 1, characterized in that: The remote client includes any one of a smart phone, a smart watch and a tablet computer.

6. The remote control valve status monitoring device according to claim 1, characterized in that: The camera includes: a wired camera and / or a wireless camera.

7. The remote control valve status monitoring device according to claim 1, characterized in that: A bracket is also provided on the housing of the valve switch, and the camera is provided on the bracket.

8. The remote control valve status monitoring device according to claim 1, characterized in that: It also includes an electrical control box, in which the programmable logic controller is arranged.

9. A remote control valve state redundant monitoring method, characterized in that: Using the remote control valve state monitoring device as claimed in any one of claims 1 to 8, the method includes when the valve is open, the programmable logic controller performs the following steps, including: The valve switch sensor collects the valve switch signal of the remote control valve, and determines whether the remote control valve is fully opened based on the valve switch signal; If it is fully opened, the signal of the flow meter is collected, and based on the signal of the flow meter, it is determined whether there is flow in the pipeline of the remote control valve. If there is flow, the valve is determined to be in the open state; if there is no flow, the video signal of the camera is collected, and based on the video signal, it is determined whether the valve opening indicator light is on. If the valve opening indicator light is on, the valve is determined to be in the open state; if the valve opening indicator light is not on, the valve is determined to be in the closed state, and the corresponding alarm is displayed through the electrical control box; If it is not fully opened, the signal of the flow meter is collected, and based on the signal of the flow meter, it is determined whether there is flow in the pipeline of the remote control valve. If there is flow, the valve is determined to be in the open state; if there is no flow, the video signal of the camera is collected, and based on the video signal, it is determined whether the valve opening indicator light is on. If the valve opening indicator light is on, the valve is determined to be in the open state; if the valve opening indicator light is not on, the valve is determined to be in the closed state, and the corresponding alarm is displayed through the electrical control box.

10. The remote control valve state redundancy monitoring method according to claim 9, characterized in that: Also includes: when the valve is closed, the programmable logic controller performs the following steps, including The valve switch sensor collects the valve switch signal of the remote control valve, and determines whether the remote control valve is fully closed based on the valve switch signal; If it is fully closed, the signal of the flow meter is collected, and based on the signal of the flow meter, it is determined whether there is flow in the pipeline of the remote control valve. If there is no flow, the valve is determined to be in the closed state; if there is flow, the video signal of the camera is collected, and based on the video signal, it is determined whether the valve closed indicator light is on. If the valve closed indicator light is not on, it is determined that the valve is stuck and the valve is in the open state, and the corresponding alarm is displayed through the electrical control box; if the valve closed indicator light is on, it is determined that the valve is leaking, and the corresponding alarm is displayed through the electrical control box; If it is not fully closed, the signal of the flow meter is collected, and based on the signal of the flow meter, it is determined whether there is flow in the pipeline of the remote control valve. If there is no flow, the valve is determined to be in a closed state; if there is flow, the video signal of the camera is collected, and based on the video signal, it is determined whether the valve closed indicator light is on. If the valve closed indicator light is not on, it is determined that the valve is stuck and the valve is in an open state, and a corresponding alarm is displayed through the electrical control box; if the valve closed indicator light is on, it is determined that the valve is leaking, and a corresponding alarm is displayed through the electrical control box.

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