Valve position feedback device based on wireless communication technology

Abstract

The utility model belongs to the technical field of valve positions, and provides a valve position feedback device based on a wireless communication technology, which comprises a mounting rack, a protective shell, a wireless transmitting module, a wireless receiving module, a wireless transmitting module, a wireless receiving module, a wireless communication module, a wireless communication module and a wireless communication module, and is characterized in that the mounting rack is mounted at the upper end of a valve and used for mounting the valve position feedback device, and the protective shell is mounted on the mounting rack; the valve position feedback device comprises a wireless sending module, a sensor module used for detecting leakage or opening signals of a valve in real time, a battery management module used for supplying power to the valve position feedback device, and a central processing unit electrically connected with the wireless sending module, the sensor module and the battery management module. The central processor is used for processing sensor signals and controlling data transmission. According to the utility model, the sensor module is combined with wireless communication technologies such as LoRaWAN, 4G / 5G and the like, so that intelligent monitoring and management of valve states of fuel gas, petroleum, chemical industry, electric power, energy and the like are realized.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the valve position technical field, concretely speaking, it is a valve position feedback device based on wireless communication technology. BACKGROUND

[0002] Gas valve is a device used for cutting off, connecting and regulating gas in pipeline, and is an important safety device of gas pipeline and related facilities. It is like a "switch" of gas, and realizes precise control of gas by controlling the opening and closing of the valve. The gas valve not only relates to the normal supply of gas, but also directly affects the safety of gas use. Therefore, effective monitoring of the gas valve is a key link to ensure the safe operation of the gas system.

[0003] In the field of gas valve monitoring, the traditional monitoring method mainly relies on wired communication system and manual regular inspection. However, these traditional methods have significant technical bottlenecks and safety hazards. Although wired valve position feedback devices have been widely used in industrial applications, their inherent limitations have become increasingly prominent, making it difficult to meet the high requirements of modern gas systems for safety and reliability.

[0004] Firstly, wired method needs to lay a large number of cables on site, which is not only complex in construction, but also high in cost. Especially in some difficult wiring, harsh environment or space limited occasions, such as underground pipeline, remote mountainous area or old building renovation project, wired method is particularly inconvenient. Secondly, the cable is easy to be damaged, such as being damaged by external force, corrosion or aging, resulting in signal interruption or unstable transmission. This not only increases the maintenance cost, but also makes the troubleshooting and repair work relatively tedious, which may consume a lot of time and manpower.

[0005] In addition, wired method is easy to be interfered by electromagnetic wave in the process of signal transmission, especially in industrial environment, the existence of strong electromagnetic field may cause signal distortion or false report, affecting the stability and accuracy of signal. This not only reduces the reliability of the monitoring system, but also delays the response to emergency situations such as gas leakage, thereby increasing the safety risk.

[0006] In addition to the limitations of wired communication, manual regular inspection also has many problems. Manual inspection depends on the subjective judgment and experience of workers, and is easy to miss or misjudge. At the same time, the inspection period is long, and it is difficult to grasp the valve state in real time, and it is difficult to find sudden leakage or valve failure in time. INVENTION CONTENTS

[0007] In order to solve the above technical problems, the utility model provides a valve position feedback device based on wireless communication technology to solve the above problems.

[0008] A valve position feedback device based on wireless communication technology, comprising:

[0009] A mounting rack is mounted on the upper end of the valve for mounting the valve position feedback device;

[0010] A protective shell is mounted on the mounting rack, and the protective shell is internally provided with a wireless transmission module for transmitting valve position data, a sensor module for detecting leakage or opening degree signals of the valve in real time, a battery management module for supplying power to the valve position feedback device, and a central processing unit electrically connected with the wireless transmission module, the sensor module and the battery management module, the central processing unit being used for processing sensor signals and controlling data transmission.

[0011] A client is wirelessly connected with the protective shell.

[0012] Preferably, the client comprises a wireless receiving module for receiving valve position data.

[0013] Preferably, the client further comprises a remote control module for generating control instructions according to the received valve position data and sending the control instructions to the central processing unit.

[0014] Preferably, an installation base is mounted on the upper end of the protective shell, and an alarm is mounted on the upper end of the installation base and electrically connected with the central processing unit.

[0015] Preferably, the wireless transmission module and the wireless receiving module communicate based on at least one of LoRaWAN, 4G and 5G protocols.

[0016] Preferably, the battery management module comprises a rechargeable lithium battery and a power monitoring unit, and the power monitoring unit is connected with the central processing unit, and when the battery power is lower than a threshold value, the central processing unit sends a low power warning to the client through the wireless transmission module.

[0017] Compared with the prior art, the utility model has the advantages of:

[0018] The utility model discloses a sensor module and the combination of LoRaWAN, 4G or 5G etc. wireless communication technology, realized the intelligent monitoring and management of gas valve state. Sensor module adopts multimodal detection mechanism, including hall sensor array real -time acquisition valve opening degree signal, and ultrasonic sensor, differential pressure sensor and methane concentration sensor joint determination leakage state, ensure the detection accuracy (opening degree error < ± 0.5%, leakage false alarm rate < 0.01%). Based on the low power wide area network (LPWAN) characteristics of LoRaWAN, data is transmitted to gateway (6) after AES128 encryption, long -distance communication, significantly reduce the wiring cost and promote the monitoring efficiency. Meanwhile, LoRaWAN supports remote generation and issues control instruction, reduces the manual operation risk, especially suitable for dangerous or difficult to access working condition environment. When valve opening exceeds the set range or detects leakage, central processing unit automatically triggers sound and light alarm, and pushes early warning information to client through LoRaWAN network, responds to potential failure quickly, reduces the equipment damage risk and downtime loss. The utility model discloses the organic combination of high -precision sensing, long -distance communication and intelligent alarm, realizes the efficient, safe monitoring of intelligent valve. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 It is the first visual angle structural schematic drawing of the utility model;

[0020] Fig. 2 It is the second visual angle structural schematic drawing of the utility model;

[0021] Fig. 3 It is the control flow schematic drawing of the utility model.

[0022] In the drawing:

[0023] 1, mounting frame, 2, protective shell, 21, wireless sending module, 22, sensor module, 23, battery management module, 24, central processing unit, 3, client, 31, wireless receiving module, 32, remote control module, 4, mounting base, 5, alarm. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. It should be pointed out that the drawings are schematic, and are not drawn to scale. For the clarity and convenience in the drawing, the relative size and proportion of the parts shown in the drawing are exaggerated or reduced for illustration, and any size is only exemplary, not limiting.

[0025] Embodiment one:

[0026] ReferenceFigs. 1-3 The utility model provides a valve position feedback device based on wireless communication technique, include:

[0027] Mounting frame 1 is installed to the upper end of the valve and is used for installing the valve position feedback device;

[0028] Protective shell 2 is installed on mounting frame 1, and the inside of protective shell 2 is provided with: wireless sending module 21, wireless sending module 21 is used for transmitting valve position data, sensor module 22, sensor module 22 is used for detecting the leakage or opening degree signal of the valve in real time, central processing unit 24, central processing unit 24 is electrically connected with wireless sending module 21 and sensor module 22, and central processing unit 24 is used for processing sensor signal and controlling data sending.

[0029] Central processing unit 24 is built-in self-diagnosis program, and the state of sensor module 22, wireless sending module 21 and alarm 5 is detected in time, and the diagnosis result is fed back to client 3.

[0030] Sensor module 22 includes but is not limited to non-contact detection unit, and the sensor module (22) includes hall sensor array, ultrasonic sensor, differential pressure sensor and methane concentration sensor, the hall sensor array is installed at the valve rotating shaft, the valve rotation angle is dynamically captured through magnetic induction, and the 0-100% opening degree signal is output, the ultrasonic sensor is attached to the outside of the valve sealing surface, monitors 10kHz~40kHz high frequency sound wave, and the turbulent noise generated by small leakage is identified through spectrum analysis;The differential pressure sensor group is symmetrically arranged at the inlet and outlet of the valve, and the pressure gradient (Delta P) is calculated in real time, the methane concentration sensor integrates NDIR (non-dispersive infrared) technology, detects the methane concentration of the surrounding environment, and the sensitivity reaches 0.1%LEL, and the acoustic / differential pressure data are fused to determine the leakage level.

[0031] Client 3 is wirelessly connected with protective shell 2.

[0032] Client 3 includes wireless receiving module 31 for receiving valve position data.

[0033] Client 3 further includes remote control module 32 for generating control instructions according to received valve position data and sending to central processing unit 24, and client 3 is mobile terminal or host computer system, and the remote control module 32 thereof supports manual triggering of the test mode of alarm 5 through preset instructions to verify the alarm function, client 3 is a monitoring center, and client 3 is transmitted to PLC or host computer system through wired or 4G wireless mode, so that client 3 can receive and process monitoring data in real time.

[0034] The protective shell 2 is provided with a mounting base 4 at the upper end, and an alarm 5 is mounted on the upper end of the mounting base 4, and the alarm 5 is electrically connected with the central processor 24. The alarm 5 is an audible and visual alarm, including a buzzer and a multi-color LED indicator light. When the valve position is abnormal, the buzzer emits a high-frequency sound, and the LED indicator light switches to a red flashing mode.

[0035] The wireless sending module 21 and the wireless receiving module 31 communicate based on at least one of LoRaWAN, 4G and 5G protocols.

[0036] Specific implementation: The valve position feedback device detects whether the gas of the gas valve leaks and the opening degree signal in real time through the sensor module 22, and transmits the signals to the central processor 24. The central processor 24 generates valve position data after processing the signals, and sends the data to the wireless gateway through the wireless sending module 21 in the LoRaWAN protocol, and then sends the data to the wireless receiving module 31 of the client 3 through the wireless gateway. The gas valve monitoring adopts LoRaWAN technology, uses AES128 encryption to transmit data, and sends the encrypted data to the wireless gateway in the PLC monitoring room through the LoRaWAN protocol. After the wireless gateway analyzes and aggregates the data, the data is transmitted to the upper computer system through Ethernet or 4G network, that is, to the client 3. The remote control module 32 of the client 3 generates control instructions according to the received valve position data, and sends the control instructions back to the central processor 24 through the wireless sending module 21. The central processor 24 executes the control instructions to adjust the valve position, and at the same time feeds back the execution result to the client 3. The central processor 24 synchronously analyzes the high-frequency noise energy of the ultrasonic sensor, the change rate of the inlet and outlet pressure difference, and the environmental methane concentration. If the data of the three exceeds the preset safety threshold, it is determined that there is a leakage, and the audible and visual alarm 5 is triggered immediately. At the same time, the leakage level and positioning information are sent to the client 3 through the LoRaWAN network.

[0037] By combining sensor module 22 with LoRaWAN wireless communication technology, intelligent monitoring and management of gas valve status is achieved. Sensor module 22 adopts a multi-modal detection mechanism, including a Hall sensor array to collect valve opening signals in real time, and ultrasonic sensors, differential pressure sensors, and methane concentration sensors to jointly determine the leakage status, ensuring detection accuracy with an opening error of <±0.5% and a false alarm rate of <0.01%. Based on the low-power wide-area network (LPWAN) characteristics of LoRaWAN, data is transmitted to gateway 6 after AES128 encryption, enabling long-distance communication, significantly reducing wiring costs and improving monitoring efficiency. Simultaneously, LoRaWAN supports remote generation and issuance of control commands, reducing the risk of manual operation, especially suitable for hazardous or inaccessible working environments. When the valve opening exceeds the set range or a leak is detected, the central processor 24 automatically triggers the audible and visual alarm 5 and pushes warning information to client 3 through the LoRaWAN network, quickly responding to potential faults and reducing the risk of equipment damage and downtime losses. This invention achieves efficient and safe monitoring of gas valves through the organic combination of high-precision sensing, long-distance communication, and intelligent alarms.

[0038] Among them, the intelligent valve monitoring system is not only suitable for the intelligent management of gas valves, but also for valve status monitoring and management in the fields of petroleum, chemical, power, and energy. It provides efficient, safe and low-cost solutions for multiple fields such as petroleum, chemical, power and energy, which can significantly improve equipment management efficiency, reduce the risk of manual intervention, and ensure the safety and stability of production operations.

[0039] Example 2:

[0040] refer to Fig. 3 The second embodiment of this utility model includes a protective housing 2, which is mounted on a mounting bracket 1. The protective housing 2 contains: a wireless transmission module 21 for transmitting valve position data; a sensor module 22 for real-time detection of valve position or opening signals; a battery management module 23 for powering the valve position feedback device; and a central processing unit 24, which is electrically connected to the wireless transmission module 21, the sensor module 22, and the battery management module 23. The central processing unit 24 is used to process sensor signals and control data transmission.

[0041] The battery management module 23 includes a rechargeable lithium battery and a power monitoring unit. The power monitoring unit is connected to the central processing unit 24. When the battery level is lower than a threshold, the central processing unit 24 sends a low battery warning to the client 3 via the wireless transmission module 21, prompting the user to update the battery level in a timely manner and ensuring the stability and reliability of the monitoring system. This function is crucial for ensuring the long-term operation of the remote monitoring system.

[0042] Specifically, the battery management module 23 provides a continuous power supply for the valve position feedback device through a rechargeable lithium battery, an internal power monitoring unit of which collects voltage, current and residual power data in real time and transmits signals to the central processor 24; when the battery power is lower than the preset threshold, the central processor 24 immediately sends a low power warning signal to the client 3 through the wireless sending module 21, in addition, the battery management module 23 integrates an intelligent charging and discharging management circuit, supports an external power adapter or a solar charging interface, automatically controls the charging current and voltage during the charging process, prevents overcharging, overdischarging and short circuit risks, and ensures the safety and service life of the battery.

[0043] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, the specific connection mode of each part adopts the conventional means such as bolt, rivet and welding in the prior art, the mechanical, part and equipment adopt the conventional type in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here. The contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0044] In the description of the utility model, the terms "first", "second" are only used for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. The meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0045] In the utility model, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0046] In the utility model, unless another definite provision and limitation, first feature is on second feature "on" or "under" can be first and second feature direct contact, or first and second feature indirect contact through intermediate medium. Moreover, first feature is on second feature "on", "above" and "on" can be first feature is on second feature directly above or obliquely above, or just indicate first feature horizontal height is higher than second feature. First feature is on second feature "under", "below" and "under" can be first feature is on second feature directly below or obliquely below, or just indicate first feature horizontal height is less than second feature.

[0047] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled in the art can combine and combine the different embodiments or examples described in the present specification and the features of the different embodiments or examples without contradiction.

[0048] The utility model discloses the embodiment figure in only relate to the structure involved in the disclosure embodiment, other structures can refer to the usual design, under the condition of not conflict, the same embodiment and different embodiments of the application can be combined mutually.

[0049] Although the utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical scheme recorded in the foregoing embodiments can be modified, or part of the technical features can be replaced, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A valve position feedback device based on wireless communication technology, characterized in that: include: Mounting bracket (1) is installed on the upper end of the valve and is used to install the valve position feedback device; A protective housing (2) is mounted on the mounting bracket (1). The protective housing (2) contains: a wireless transmission module (21) for transmitting valve position data; a sensor module (22) for detecting valve leakage and opening signals; a battery management module (23) for powering the valve position feedback device; and a central processing unit (24) electrically connected to the wireless transmission module (21), the sensor module (22), and the battery management module (23). The central processing unit (24) is used to process sensor signals and control data transmission. Client (3) is wirelessly connected to the protective housing (2).

2. The valve position feedback device based on wireless communication technology as described in claim 1, characterized in that: The client (3) includes a wireless receiving module (31) for receiving valve position data.

3. The valve position feedback device based on wireless communication technology as described in claim 2, characterized in that: The client (3) also includes a remote control module (32) for generating control commands based on the received valve position data and sending them to the central processing unit (24).

4. The valve position feedback device based on wireless communication technology as described in claim 1, characterized in that: The protective housing (2) is equipped with a mounting base (4) at its upper end, and an alarm (5) is installed on the upper end of the mounting base (4). The alarm (5) is electrically connected to the central processing unit (24).

5. The valve position feedback device based on wireless communication technology as described in claim 1, characterized in that: The wireless transmitting module (21) and the wireless receiving module (31) communicate based on at least one of the LoRaWAN, 4G, and 5G protocols.

6. The valve position feedback device based on wireless communication technology as described in claim 1, characterized in that: The battery management module (23) includes a rechargeable lithium battery and a power monitoring unit. The power monitoring unit is connected to the central processing unit (24). When the battery power is lower than the threshold, the central processing unit (24) sends a low power warning to the client (3) through the wireless transmission module (21).

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