A narrow space gas pipeline safety monitoring circuit and device

Abstract

The utility model relates to gas monitoring equipment field discloses a kind of narrow space gas pipeline safety monitoring circuit and equipment, the circuit includes: processor;Positioning module, the positioning module is electrically connected with processor, for collecting position information;Encryption module, the encryption module is electrically connected with processor, for the data of transmission is encrypted;Communication module, the communication module is electrically connected with processor;Middle voltage detector and low voltage detector, the middle voltage detector and low voltage detector are electrically connected with processor, and the middle voltage detector is used to measure the temperature and pressure of pipeline middle pressure section, and the low voltage detector is used to measure the temperature and pressure of pipeline low pressure section.The monitoring equipment of the utility model has better monitoring convenience and installation convenience, and has good security.

Description

Technical Field

[0001] This utility model relates to the field of gas monitoring equipment, specifically to a safety monitoring circuit and equipment for gas pipelines in narrow spaces. Background Technology

[0002] As a crucial component of urban infrastructure, the safe operation of gas pipelines is directly related to the safety of people's lives and property. However, the safety monitoring of gas pipelines has always faced numerous challenges, especially in monitoring gas pipelines in confined spaces, such as building pressure regulating boxes.

[0003] Existing technologies still have at least the following problems:

[0004] 1. Large size and inconvenient installation: Existing gas pipeline safety monitoring instruments are often large in size in order to meet the requirements of multi-functionality and long battery life, making them difficult to install in the small space of building pressure regulating boxes;

[0005] 2. Insufficient Security: Due to the specific requirements of the natural gas industry, owners have high demands for data security. However, most existing instrument data is not encrypted during upload, posing a security risk. Utility Model Content

[0006] The purpose of this utility model is to provide a safety monitoring circuit and equipment for gas pipelines in narrow spaces, which solves the problems of existing monitoring equipment being large in size, difficult to install, and lacking in safety.

[0007] To achieve the aforementioned objectives, the technical solution adopted by this utility model is as follows:

[0008] In a first aspect, this utility model provides a safety monitoring circuit for gas pipelines in confined spaces, the circuit comprising:

[0009] processor;

[0010] A positioning module, electrically connected to the processor, is used to collect location information;

[0011] An encryption module, electrically connected to the processor, is used to encrypt transmitted data;

[0012] A communication module, which is electrically connected to the processor;

[0013] The medium-pressure detector and the low-pressure detector are both electrically connected to the processor. The medium-pressure detector is used to measure the temperature and pressure of the medium-pressure section of the pipeline, and the low-pressure detector is used to measure the temperature and pressure of the low-pressure section of the pipeline.

[0014] Preferably, the circuit further includes:

[0015] The display module is electrically connected to the processor.

[0016] A button module, which is electrically connected to the processor;

[0017] An external storage module, which is electrically connected to the processor;

[0018] A power supply module is provided to provide operating power to the processor, encryption module, communication module, medium-voltage detector, low-voltage detector, display module, and external storage module.

[0019] Preferably, the encryption module includes: an encryption chip U4, resistors R16, R15, and R17, a MOSFET Q4, a capacitor C47, and a capacitor C48.

[0020] The data transmission pin of the encryption chip is electrically connected to the first end of the resistor R15, and the second end of the resistor R15 is electrically connected to the data reception pin of the processor.

[0021] The data receiving pin of the encryption chip is electrically connected to the first end of the resistor R16, and the second end of the resistor R16 is electrically connected to the data sending pin of the processor.

[0022] The power input terminal of the encryption chip is electrically connected to the drain of the MOS transistor Q4, the gate of the MOS transistor Q4 is electrically connected to the first end of the resistor R17, and the second end of the resistor R17 is electrically connected to the control pin of the processor.

[0023] The source of the MOSFET Q4 is electrically connected to the first terminal of capacitor C47, the first terminal of capacitor C48, and the output terminal of the power module, respectively.

[0024] The ground pin of the encryption chip U4, the second terminal of capacitor C47, and the second terminal of capacitor C48 are all grounded.

[0025] Preferably, the processor uses the FM33LG048 minimum system.

[0026] Preferably, both the medium-pressure detector and the low-pressure detector include a temperature sensor and a pressure sensor.

[0027] Secondly, this utility model provides a safety monitoring device for gas pipelines in confined spaces, the device comprising:

[0028] The aforementioned safety monitoring circuit for gas pipelines in confined spaces;

[0029] The enclosure contains a motherboard, on which the processor, encryption module, and communication module of the narrow space gas pipeline safety monitoring circuit are all integrated.

[0030] Two connectors are provided. One connector is used to connect to the medium-pressure section of the gas pipeline, and the medium-pressure detector of the narrow space gas pipeline safety monitoring circuit is installed in one connector. The other connector is used to connect to the low-pressure section of the gas pipeline, and the low-pressure detector of the narrow space gas pipeline safety monitoring circuit is installed in the other connector. The two connectors are connected to the processor on the motherboard inside the chassis via cables.

[0031] Preferably, an antenna interface is provided on one side of the housing, and the antenna interface is used to connect the antenna of the positioning module.

[0032] Preferably, the front of the housing is equipped with a display screen and multiple physical buttons.

[0033] The beneficial effects of this utility model are mainly reflected in:

[0034] 1. The mainboard of the gas pipeline safety monitoring device in narrow space of this utility model integrates an encryption module, which can encrypt the transmitted data, so that the device has good security.

[0035] 2. The monitoring circuit of this utility model has a high degree of integration, which can reduce the size of the entire monitoring equipment and meet the installation requirements of narrow spaces;

[0036] 3. The monitoring device of this utility model uses two connectors to connect to the gas pipeline, and then the medium-pressure detector and the low-pressure detector inside the connector measure the temperature and pressure of the medium-pressure section and the low-pressure section of the pipeline respectively, so that the monitoring device has better monitoring convenience and installation convenience. Attached Figure Description

[0037] The accompanying drawings are provided to further illustrate the embodiments of the present invention and form part of the specification. They are used together with the following detailed description to explain the embodiments of the present invention, but do not constitute a limitation thereof. In the drawings:

[0038] Figure 1 This is a block diagram of a safety monitoring circuit for gas pipelines in confined spaces provided in one embodiment of the present invention;

[0039] Figure 2 This is a circuit diagram of the TAU1113 Beidou positioning module provided in one embodiment of this utility model;

[0040] Figure 3 This is a circuit diagram of an encryption module provided in one embodiment of the present invention;

[0041] Figure 4 This is a circuit schematic diagram of an external storage module provided in one embodiment of the present invention;

[0042] Figure 5 This is a front view of the overall structure of a safety monitoring device for gas pipelines in narrow spaces provided in one embodiment of this utility model.

[0043] Illustration: 1. Chassis; 2. Connector; 3. Cable; 4. Antenna interface; 5. Display screen; 6. Physical buttons. Detailed Implementation

[0044] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0045] Example 1

[0046] Figure 1 This is a block diagram of a safety monitoring circuit for gas pipelines in confined spaces, provided in one embodiment of this utility model. Figure 1 As shown, this embodiment provides a safety monitoring circuit for gas pipelines in confined spaces. The circuit includes: a processor, a positioning module, an encryption module, a communication module, a medium-pressure detector, a low-pressure detector, a display module, a button module, an external storage module, and a power supply module. The power supply module provides operating power to the processor, encryption module, communication module, medium-pressure detector, low-pressure detector, display module, and external storage module.

[0047] The processor uses the FM33LG048 minimum system. The power module includes a battery and a voltage regulator circuit. The battery is a 2.5V~4.5V rechargeable battery. The voltage regulator circuit is used to convert 2.5V~4.5V into power supplies of various voltage levels, such as 3.3V power supply, 1.8V power supply, etc.

[0048] The positioning module is electrically connected to the processor and is used to collect location information. In this embodiment, the positioning module uses the TAU1113 BeiDou positioning module. The circuit of the TAU1113 BeiDou positioning module is as follows: Figure 2 As shown, it includes: positioning chip U8, resistor R40, MOSFET Q8, capacitor C53, capacitor C54, antenna RF2, and inductor L2.

[0049] In this embodiment, MOSFET Q8 is a P-type MOSFET, responsible for controlling the power switch of the TAU1113 Beidou positioning module. The power supply of the TAU1113 Beidou positioning module is 3.3V. Capacitor C53 is an energy storage capacitor, which provides local energy replenishment for the instantaneous large current demand when the chip is powered on, reducing voltage drops caused by power path impedance. Capacitor C54 is a filter capacitor, used to smooth power supply ripple and suppress low-frequency and high-frequency noise. Inductor L2 is responsible for providing power to antenna RF2.

[0050] The encryption module is electrically connected to the processor and is used to encrypt the transmitted data. The transmitted data includes, but is not limited to, location information, temperature information, and pressure information. In this embodiment, by deploying the encryption module, the encryption module can encrypt the transmitted data, giving the device good security.

[0051] In this embodiment, as Figure 3 As shown, the encryption module includes: encryption chip U4, resistors R16, R15, and R17, MOSFET Q4, capacitor C47, and capacitor C48.

[0052] The data transmission pin of the encryption chip is electrically connected to the first end of the resistor R15, and the second end of the resistor R15 is electrically connected to the data reception pin of the processor.

[0053] The data receiving pin of the encryption chip is electrically connected to the first end of the resistor R16, and the second end of the resistor R16 is electrically connected to the data sending pin of the processor.

[0054] The power input terminal of the encryption chip is electrically connected to the drain of the MOS transistor Q4, the gate of the MOS transistor Q4 is electrically connected to the first end of the resistor R17, and the second end of the resistor R17 is electrically connected to the control pin of the processor.

[0055] The source of the MOSFET Q4 is electrically connected to the first terminal of capacitor C47, the first terminal of capacitor C48, and the output terminal of the power module, respectively.

[0056] The ground pin of the encryption chip U4, the second terminal of capacitor C47, and the second terminal of capacitor C48 are all grounded.

[0057] In this embodiment, the encryption chip U4 uses the CF3310 hardware encryption chip. The MOSFET Q4 is a P-type MOSFET, which is responsible for controlling the power switch of the encryption module. The power supply of the encryption module is 3.3V. Resistors R15, R16, and R17 are all current-limiting resistors to prevent large currents from damaging the encryption chip. Capacitor C47 is an energy storage capacitor, which provides local energy replenishment for the instantaneous large current demand when the encryption chip is powered on, reducing voltage drops caused by power path impedance. Capacitor C48 is a filter capacitor, used to smooth power supply ripple and suppress low-frequency and high-frequency noise.

[0058] The communication module is electrically connected to the processor; in this embodiment, the communication module adopts the EC600K-CN series communication module.

[0059] The medium-pressure detector and the low-pressure detector are both electrically connected to the processor. The medium-pressure detector is used to measure the temperature and pressure of the medium-pressure section of the pipeline, and the low-pressure detector is used to measure the temperature and pressure of the low-pressure section of the pipeline. Both the medium-pressure detector and the low-pressure detector include a temperature sensor and a pressure sensor.

[0060] The display module is electrically connected to the processor and includes a display screen for displaying basic information, including but not limited to IP address and location information.

[0061] The button module is electrically connected to the processor and has multiple physical buttons, including but not limited to buttons for active reporting, adjusting the sampling period, and adjusting the transmission period.

[0062] The external storage module is electrically connected to the processor, and it uses an FM25Q128 chip; therefore, the circuit of the external storage module is as follows: Figure 4 As shown, the components include: memory chip U9, resistor R44, capacitor C14, capacitor C55, and MOSFET Q9; memory chip U9 is an FM25Q128 chip, and MOSFET Q9 is a P-type MOSFET responsible for controlling the power switch of the external storage module, which is powered by a 3.3V power supply; resistor R44 is a current-limiting resistor to prevent large currents from damaging memory chip U9; capacitor C14 is an energy storage capacitor, which provides local energy replenishment for the instantaneous large current demand when the chip is powered on, reducing voltage drops caused by power path impedance; capacitor C55 is a filter capacitor, used to smooth power supply ripple and suppress low-frequency and high-frequency noise.

[0063] In this embodiment, since the power module uses a non-rechargeable battery, by deploying MOSFETs Q4, Q8, and Q9 as switches to control the power supply, the static current of the overall circuit can be minimized. The smaller the static current, the better it is for improving the battery's lifespan.

[0064] Therefore, the monitoring circuits in the examples in this book are highly integrated, which can reduce the size of the entire monitoring device and meet the installation requirements in narrow spaces.

[0065] Example 2

[0066] Figure 5 This is a front view of the overall structure of a safety monitoring device for gas pipelines in confined spaces, provided in one embodiment of this utility model. Figure 5 As shown, this embodiment provides a safety monitoring device for gas pipelines in narrow spaces. The device includes: the safety monitoring circuit for gas pipelines in narrow spaces as described in Embodiment 1 and a housing 1. The housing 1 is equipped with a motherboard, and the processor, encryption module, and communication module of the safety monitoring circuit for gas pipelines in narrow spaces are all integrated on the motherboard.

[0067] The device further includes: two connectors 2, one of which is used to connect to the medium-pressure section of the gas pipeline, and the medium-pressure detector of the narrow space gas pipeline safety monitoring circuit is installed in one of the connectors 2; the other connector 2 is used to connect to the low-pressure section of the gas pipeline, and the low-pressure detector of the narrow space gas pipeline safety monitoring circuit is installed in the other connector 2; the two connectors 2 are connected to the processor on the motherboard inside the housing 1 via a cable 3.

[0068] In this embodiment, an antenna interface 4 is provided on one side of the box 1. The antenna interface 4 is used to connect the antenna RF1 of the positioning module. A display screen 5 and multiple physical buttons 6 are installed on the front of the box 1. The physical buttons 6 include, but are not limited to, active reporting buttons, sampling period adjustment buttons, and transmission period adjustment buttons.

[0069] The monitoring device in this embodiment uses two connectors 2 to connect to the gas pipeline. The medium-pressure detector and the low-pressure detector inside the connector 2 measure the temperature and pressure of the medium-pressure section and the low-pressure section of the pipeline, respectively, so that the monitoring device has better monitoring convenience and installation convenience.

[0070] The above are merely embodiments of this application and are not intended to limit the scope of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this application should be included within the scope of the claims of this application.

Claims

1. A safety monitoring circuit for gas pipelines in confined spaces, characterized in that, The circuit includes: processor; A positioning module, electrically connected to the processor, is used to collect location information; An encryption module, electrically connected to the processor, is used to encrypt transmitted data; A communication module, which is electrically connected to the processor; The medium-pressure detector and the low-pressure detector are both electrically connected to the processor. The medium-pressure detector is used to measure the temperature and pressure of the medium-pressure section of the pipeline, and the low-pressure detector is used to measure the temperature and pressure of the low-pressure section of the pipeline.

2. The safety monitoring circuit for gas pipelines in confined spaces according to claim 1, characterized in that, The circuit also includes: The display module is electrically connected to the processor. A button module, which is electrically connected to the processor; An external storage module, which is electrically connected to the processor; A power supply module is provided to provide operating power to the processor, encryption module, communication module, medium-voltage detector, low-voltage detector, display module, and external storage module.

3. The safety monitoring circuit for gas pipelines in confined spaces according to claim 2, characterized in that, The encryption module includes: encryption chip U4, resistor R16, resistor R15, resistor R17, MOSFET Q4, capacitor C47, and capacitor C48. The data transmission pin of the encryption chip is electrically connected to the first end of the resistor R15, and the second end of the resistor R15 is electrically connected to the data reception pin of the processor. The data receiving pin of the encryption chip is electrically connected to the first end of the resistor R16, and the second end of the resistor R16 is electrically connected to the data sending pin of the processor. The power input terminal of the encryption chip is electrically connected to the drain of the MOS transistor Q4, the gate of the MOS transistor Q4 is electrically connected to the first end of the resistor R17, and the second end of the resistor R17 is electrically connected to the control pin of the processor. The source of the MOSFET Q4 is electrically connected to the first terminal of capacitor C47, the first terminal of capacitor C48, and the output terminal of the power module, respectively. The ground pin of the encryption chip U4, the second terminal of capacitor C47, and the second terminal of capacitor C48 are all grounded.

4. The safety monitoring circuit for gas pipelines in confined spaces according to any one of claims 1-3, characterized in that, The processor uses the FM33LG048 minimum system.

5. The safety monitoring circuit for gas pipelines in confined spaces according to claim 4, characterized in that, Both the medium-pressure detector and the low-pressure detector include a temperature sensor and a pressure sensor.

6. A safety monitoring device for gas pipelines in confined spaces, characterized in that, The device includes: Safety monitoring circuit for gas pipelines in confined spaces as described in any one of claims 1-5; The enclosure contains a motherboard, on which the processor, encryption module, and communication module of the narrow space gas pipeline safety monitoring circuit are all integrated. Two connectors are provided. One connector is used to connect to the medium-pressure section of the gas pipeline, and the medium-pressure detector of the narrow space gas pipeline safety monitoring circuit is installed in one connector. The other connector is used to connect to the low-pressure section of the gas pipeline, and the low-pressure detector of the narrow space gas pipeline safety monitoring circuit is installed in the other connector. The two connectors are connected to the processor on the motherboard inside the chassis via cables.

7. The safety monitoring device for gas pipelines in confined spaces according to claim 6, characterized in that, An antenna interface is provided on one side of the housing, which is used to connect the antenna of the positioning module.

8. The safety monitoring device for gas pipelines in confined spaces according to claim 6, characterized in that, The front of the box is equipped with a display screen and multiple physical buttons.

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