A buried single-channel acquisition instrument suitable for a single-point sedimentation meter

Abstract

The utility model discloses a kind of embedded single-channel acquisition instruments suitable for single-point deposimeter, including, single-channel acquisition instrument, aviation plug, antenna unit and single-point deposimeter unit, wherein: the single-channel acquisition instrument includes: shell, main control unit being installed in shell, battery support, battery and bottom plate support.The interface connection of one end of the aviation plug with the shell one side, the other end is connected with single-point deposimeter unit.The antenna unit is installed on the other side of shell.The relative slip data between electric measuring displacement sensor and measuring rod are collected by the single-point deposimeter unit and transmitted to the single-channel acquisition instrument for processing, and the processed data is transmitted to host computer by the antenna unit.The utility model structure is simple, easy to operate, effect is remarkable, configuration is convenient, solve the current existing single-point deposimeter's structure complex, installation maintenance cumbersome and other insufficient problems, suitable for large-scale popularization and use.

Description

Technical Field

[0001] This utility model relates to the field of settlement monitoring, and in particular to an embedded single-channel data acquisition instrument suitable for single-point settlement gauges. Background Technology

[0002] The single-channel data acquisition instrument for single-point settlement gauges is a widely used monitoring device in engineering structures such as in-situ settlement deformation of roadbeds, embankment heave deformation, and bottom protrusion of underground tunnels. In practical applications, with the diversification of application fields and the increasing monitoring needs, the requirements for the range, accuracy, size, adaptability, and protection level of monitoring equipment are becoming increasingly stringent.

[0003] Currently available settlement monitoring equipment relies on manual monitoring, which is complex in structure and has poor measurement accuracy. Furthermore, wireless settlement monitoring equipment suffers from drawbacks such as high power consumption, low reliability, and poor long-term stability, and therefore cannot meet the monitoring requirements of the project. Utility Model Content

[0004] To address the problems existing in the prior art, this utility model provides an embedded single-channel data acquisition instrument suitable for single-point settlement gauges that features low power consumption, high accuracy, and good environmental adaptability.

[0005] Therefore, the present invention adopts the following technical solution: An embedded single-channel data acquisition instrument for single-point settlement gauges includes: a single-channel data acquisition instrument, an aviation connector, an antenna unit, and a single-point settlement gauge unit, wherein: The single-point settlement gauge unit is used to collect settlement data and transmit it to the single-channel data acquisition instrument; the single-point settlement gauge unit includes an electrical displacement sensor, a measuring rod, and a metal flexible tube sleeved on the measuring rod; the electrical displacement sensor is fixed by a settlement plate, the electrical displacement sensor is connected to an aviation plug at the top and the measuring rod at the bottom, the other end of the measuring rod is connected to an extension rod through an anchor head, and the other end of the extension rod is connected to the bottom anchor head; During measurement, after the single-point settlement gauge unit is completely buried, the bottom anchor head is fixed to the bedrock. When the bedrock sinks, the settlement plate sinks with the bedrock, causing relative slippage between the electrical displacement sensor and the measuring rod, and acquiring displacement transformation data. The displacement transformation data is used as settlement data. The single-channel data acquisition instrument is used to process the received settlement data and transmit the processed settlement data to the host computer through the antenna unit; The aviation plug is used to connect the single-channel data acquisition instrument to the single-point settlement meter unit.

[0006] The single-channel data acquisition device includes: a housing, a main control unit installed inside the housing, a battery, a battery bracket, and a base plate bracket; the battery bracket is used to fix the battery, and the base plate bracket is used to fix the main control unit.

[0007] The main control unit includes: a power conversion module, an MCU module, a POWERBUS communication module, and a data transmission module; The power conversion module is used to convert the battery's input voltage of 3.7V into 12V and to power the data transmission module. The POWERBUS communication module is connected to the single-point settlement gauge unit via the aviation connector, and is used to receive settlement data collected by the single-point settlement gauge unit, and then transmit the settlement data to the MCU module; the POWERBUS communication module also provides power to the single-point settlement gauge unit. The MCU module includes a microcontroller and a crystal oscillator circuit connected to each other; this module is used to process the received sedimentation data and then transmit it to the data transmission module; the MCU module supplies power to the POWERBUS communication module; The data transmission module is used to read the base station positioning information and send the received processed settlement data to the host computer through the antenna unit.

[0008] The main control unit also includes: a reference power supply module, a communication indicator module, a clock module, and a Bluetooth configuration module connected to the MCU module; The reference power module is used to convert the battery's input voltage of 3.7V into a 2.5V reference voltage, and then send the 2.5V reference voltage to the AD input terminal of the MCU module to realize reference voltage sampling. The clock module is used to provide real-time clock information to the MCU module; The Bluetooth configuration module is used to connect to a mobile phone, allowing users to view and debug the status parameters of the MCU module via the mobile phone. The communication indicator module is a light-emitting diode, used to indicate the working status of the POWERBUS communication module, the data transmission module, and the power supply status of the single-point settlement gauge unit. The MCU module supplies power to the communication indicator module.

[0009] The data transmission module is also used to receive instructions from the host computer and send them to the MCU module. The MCU module modifies internal parameters such as the sampling frequency according to the instructions. The data transmission module also includes an antenna interface and a SIM card interface. The antenna interface is used to connect to the antenna unit. The SIM card interface is used to insert an IoT card to provide traffic support to the data transmission module.

[0010] The interface of the aviation plug is used to connect the single-point settlement gauge unit to the POWERBUS communication module for data transmission; it can also be used to configure parameters such as the sampling frequency inside the MCU module; and the interface of the aviation plug also serves as a switch, so that the battery will not supply power to the main control unit when the aviation plug is not connected to the interface.

[0011] The MCU module is also used to control the POWERBUS communication module to shut down the power supply to the single-point settlement gauge unit and shut down the power supply to most of the peripheral circuits when there is no settlement monitoring task, thus entering a sleep state.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention utilizes NB-IoT communication technology to significantly reduce power consumption during data upload, and the device enters sleep mode when there are no events to process. In sleep mode, the device shuts off power to the single-point settlement gauge unit and other peripheral circuits, reducing current consumption to the nanoamp level.

[0013] 2. The single-channel data acquisition unit of this utility model serves as the master station device for POWERBUS communication, and the single-point settlement gauge unit serves as the slave device for POWERBUS communication. It converts the relative slip data of settlement represented by the single-point settlement gauge into a form suitable for POWERBUS communication, realizing the DC power carrier transmission function of the POWERBUS two-wire power supply bus. This ensures the stability of data transmission and ensures that the accuracy of the data is not affected by voltage drop when the cable is long, resulting in high data accuracy and good transmission stability.

[0014] 3. This utility model's single-channel data acquisition instrument features a self-developed adaptable housing. The housing houses the battery and main control unit, and a battery bracket and a base plate bracket are designed to ensure the relative fixation of the battery and main control unit. Based on this, the length, width, and height of the housing were determined to minimize its size while fully accommodating the contents. Simultaneously, the housing is designed to accommodate the required drilling dimensions on-site. The single-channel data acquisition instrument is positioned horizontally and vertically above the single-point sedimentation meter unit, and the drilling dimensions for its placement space cannot be narrower than those for the space containing the single-point sedimentation meter unit. Based on all these requirements, the housing was ultimately designed, achieving miniaturization and cost reduction while also exhibiting good environmental adaptability.

[0015] 4. This utility model is specifically designed for single-point settlement gauges, and the outer shell size can adapt to the installation holes under on-site working conditions.

[0016] 5. This utility model has a simple structure, is easy to operate, has significant effects, and is convenient to configure. It solves the problems of complex structure and cumbersome installation and maintenance of existing single-point settlement gauges, and is suitable for large-scale promotion and use. Attached Figure Description

[0017] Figure 1 and Figure 2 This is a schematic diagram of the embedded single-channel data acquisition instrument in an embodiment of the present utility model; Figure 3This is a schematic diagram of the connection structure of each module in the main control unit in this embodiment of the present invention.

[0018] In the diagram: 1. Single-channel data acquisition unit; 2. Aviation connector; 3. Antenna unit; 4. Single-point settlement gauge unit; 11. Main control unit; 12. Housing; 13. Battery; 14. Battery bracket; 15. Base plate bracket; 111. Reference power supply module; 112. Power conversion module; 113. MCU module; 114. POWERBUS communication module; 115. Communication indicator module; 116. Data transmission module; 117. Clock module; 118. Bluetooth configuration module; 41. Electrical displacement sensor; 42. Measuring rod; 43. Metal flexible hose. Detailed Implementation

[0019] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the following embodiments are some, but not all, embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model. Example

[0020] See Figures 1-3 An embodiment of this utility model of an embedded single-channel data acquisition device for a single-point settlement gauge includes: a single-channel data acquisition device 1, an aviation connector 2, an antenna unit 3, and a single-point settlement gauge unit 4. The single-channel data acquisition device 1 includes: a housing 12, a main control unit 11 installed within the housing 12, a battery 13, a battery bracket 14, and a base plate bracket 15. The battery bracket 14 is used to fix the battery 13, and the base plate bracket 15 is used to fix the main control unit 11.

[0021] like Figure 3 As shown, the main control unit 11 includes: a reference power supply module 111, a power conversion module 112, an MCU module 113, a POWERBUS communication module 114, a communication indicator module 115, a data transmission module 116, a clock module 117, and a Bluetooth configuration module 118. Details are as follows: The power conversion module 112 is connected to the battery 13 via a battery interface, and is used to convert the input voltage of the battery 13 (3.7V) into a voltage of 12V, and to power the data transmission module 116. In this embodiment, the power conversion module 112 uses an MP1584 DC-DC regulator.

[0022] The reference power module 111 converts the 3.7V input voltage of the battery 13 into a 2.5V reference voltage, and then sends the 2.5V reference voltage to the AD input terminal of the MCU module 113 to achieve reference voltage sampling. In this embodiment, the reference power module 111 uses a reference chip of model MCP1525.

[0023] The POWERBUS communication module 114 is connected to the single-point settlement gauge unit 4 via the aviation connector 2, and is used to receive the settlement data collected by the single-point settlement gauge unit 4, and then transmit the settlement data to the MCU module 113. The POWERBUS communication module 114 also supplies power to the single-point settlement gauge unit 4. In this embodiment, the POWERBUS communication module 114 uses a dedicated master station communication chip PB620.

[0024] The MCU module 113 includes an STC15W4K48S4 microcontroller and a crystal oscillator circuit connected to each other. This module is used to process the received settlement data and then transmit it to the data transmission module 116. The MCU module 113 supplies power to the communication indication module 115 and the POWERBUS communication module 114.

[0025] The data transmission module 116 is used to read base station positioning information and send the received processed settlement data to the host computer through the antenna unit 3. The data transmission module 116 is also used to receive instructions from the host computer and send them to the MCU module 113, which modifies internal parameters such as the sampling frequency according to the instructions. The data transmission module 116 includes an antenna interface and a SIM card interface, wherein: the antenna interface is used to connect to the antenna unit 3; the SIM card interface is used to insert an IoT card to provide traffic support to the data transmission module 116. In this embodiment, the data transmission module 116 uses a BC26 NB-IoT communication module.

[0026] The clock module 117 is used to provide real-time clock information to the MCU module 113. In this embodiment, the clock module 117 uses a DS1302 real-time clock chip.

[0027] The Bluetooth configuration module 118 is used to connect to a mobile phone to view and debug the status parameters of the MCU module 113. In this embodiment, the Bluetooth configuration module 118 adopts a low-power Bluetooth module HC-08.

[0028] The communication indicator module 115 is a light-emitting diode, used to indicate the working status of the POWERBUS communication module 114, the data transmission module 116, and the power supply status of the single-point settlement gauge unit 4.

[0029] One end of the aviation connector 2 connects to an interface on one side of the housing 12, and the other end connects to the single-point settlement gauge unit 4. The antenna unit 3 is mounted on the other side of the housing 12. The interface of the aviation connector 2 can be used to connect the single-point settlement gauge unit 4 to the POWERBUS communication module 114 for data transmission, and can also be used to configure parameters such as the sampling frequency inside the MCU module 113; furthermore, the interface of the aviation connector 2 can also be used as a switch, and when the aviation connector 2 is not connected to the interface, the battery 13 will not supply power to the main control unit 11.

[0030] The single-point settlement gauge unit 4 is used to collect settlement data and includes an electrical displacement sensor 41, a measuring rod 42, and a metal flexible hose 43. It features high stability, high reliability, and extremely low temperature influence, making it adaptable to harsh environments and long-term observation. The specific connection method is as follows: the electrical displacement sensor 41 of the single-point settlement gauge unit 4 is fixed by a settlement plate (not shown in the figure). The electrical displacement sensor 41 is connected to an aviation connector 2 at the top and to the measuring rod 42, which is fitted with a metal flexible hose 43, at the bottom. The other end of the measuring rod 42 is connected to an extension rod via an anchor head, and the other end of the extension rod is connected to the bottom anchor head.

[0031] The working principle of this utility model is as follows: After the single-point settlement gauge unit 4 is completely buried, the bottom anchor head is fixed to the bedrock. When the bedrock sinks, the settlement plate sinks with the bedrock, causing relative slippage between the electrical displacement sensor 41 and the measuring rod 42 (the measuring rod is connected to the bottom anchor head through an extension rod and is in a fixed position). The displacement transformation data is obtained and sent as settlement data to the single-channel acquisition instrument 1 for processing. The processed settlement data is then transmitted to the host computer through the antenna unit 3 to realize settlement observation.

[0032] The MCU module 113 also has a sleep mode, as detailed below: This mode is mainly implemented by the sleep command in the MCU module 113. When the device of this invention has no measurement task, the MCU module 113 will control the POWERBUS communication module 114 to turn off the power supply to the single-point settlement gauge unit 4, and at the same time turn off the power supply to most of the peripheral circuits, so that the device of this invention enters the sleep state. At this time, the current of the entire device is reduced to the nanoamp level, thereby greatly reducing the power consumption of the device. When the device of this invention needs to perform settlement monitoring, the MCU module 113 will wake up the device again to collect settlement data.

[0033] The clock module 117 provides the device with accurate time and can automatically calibrate to the server time each time it is woken up. It wakes up the system according to the device's sleep time and data acquisition time set in the MCU module 113, thereby ensuring the stability of the device during use.

Claims

1. An embedded single-channel data acquisition instrument suitable for single-point settlement gauges, characterized in that, include: The single-channel data acquisition unit (1), aviation connector (2), antenna unit (3), and single-point settlement meter unit (4) are as follows: The single-point settlement gauge unit (4) is used to collect settlement data and transmit it to the single-channel acquisition instrument (1); the single-point settlement gauge unit (4) includes an electrical displacement sensor (41), a measuring rod (42) and a metal flexible tube (43) sleeved on the measuring rod (42); the electrical displacement sensor (41) is fixed by a settlement plate, the electrical displacement sensor (41) is connected to an aviation plug (2) at the top and to the measuring rod (42) at the bottom, the other end of the measuring rod (42) is connected to an extension rod through an anchor head, and the other end of the extension rod is connected to the bottom anchor head; During measurement, after the single-point settlement gauge unit (4) is completely buried, the bottom anchor head is fixed to the bedrock. When the bedrock sinks, the settlement plate sinks with the bedrock, causing relative slippage between the electrical displacement sensor (41) and the measuring rod (42) to obtain displacement transformation data, and the displacement transformation data is used as settlement data. The single-channel acquisition instrument (1) is used to process the received settlement data and transmit the processed settlement data to the host computer through the antenna unit (3); The aviation plug (2) is used to connect the single-channel data acquisition instrument (1) and the single-point settlement meter unit (4).

2. The embedded single-channel data acquisition instrument according to claim 1, characterized in that, The single-channel acquisition device (1) includes: a housing (12), a main control unit (11) installed in the housing (12), a battery (13), a battery bracket (14), and a base plate bracket (15); the battery bracket (14) is used to fix the battery (13), and the base plate bracket (15) is used to fix the main control unit (11).

3. The embedded single-channel data acquisition instrument according to claim 2, characterized in that, The main control unit (11) includes: a power conversion module (112), an MCU module (113), a POWERBUS communication module (114), and a data transmission module (116). The power conversion module (112) is used to convert the input voltage of the battery (13) of 3.7V into a voltage of 12V and to power the data transmission module (116); The POWERBUS communication module (114) is connected to the single-point settlement gauge unit (4) via the aviation plug (2) and is used to receive the settlement data collected by the single-point settlement gauge unit (4) and then transmit the settlement data to the MCU module (113); the POWERBUS communication module (114) also supplies power to the single-point settlement gauge unit (4); The MCU module (113) includes a microcontroller and a crystal oscillator circuit connected to each other; the module is used to process the received sedimentation data and then transmit it to the data transmission module (116); the MCU module (113) supplies power to the POWERBUS communication module (114); The data transmission module (116) is used to read the base station positioning information and send the received processed settlement data to the host computer through the antenna unit (3).

4. The embedded single-channel data acquisition instrument according to claim 3, characterized in that, The main control unit (11) further includes: a reference power supply module (111), a communication indicator module (115), a clock module (117), and a Bluetooth configuration module (118) connected to the MCU module (113). The reference power module (111) is used to convert the input voltage of the battery (13) of 3.7V into a reference voltage of 2.5V, and then send the reference voltage of 2.5V to the AD input terminal of the MCU module (113) to realize reference voltage sampling. The clock module (117) is used to provide real-time clock information to the MCU module (113); The Bluetooth configuration module (118) is used to connect to a mobile phone and view and debug the status parameters of the MCU module (113) through the mobile phone; The communication indicator module (115) is a light-emitting diode used to indicate the working status of the POWERBUS communication module (114), the data transmission module (116) and the power supply status of the single-point settlement meter unit (4). The MCU module (113) supplies power to the communication indicator module (115).

5. The embedded single-channel data acquisition instrument according to claim 4, characterized in that: The data transmission module (116) is also used to receive instructions from the host computer and send them to the MCU module (113). The MCU module (113) modifies the internal sampling frequency according to the instructions. The data transmission module (116) also includes an antenna interface and a SIM card interface. The antenna interface is used to connect to the antenna unit (3). The SIM card interface is used to insert an IoT card to provide traffic support to the data transmission module (116).

6. The embedded single-channel data acquisition instrument according to claim 5, characterized in that: The interface of the aviation plug (2) is used to connect the single-point settlement gauge unit (4) to the POWERBUS communication module (114) for data transmission; it can also be used to configure the sampling frequency inside the MCU module (113); and the interface of the aviation plug (2) is also used as a switch. When the aviation plug (2) is not connected to the interface, the battery (13) will not supply power to the main control unit (11).

7. The embedded single-channel data acquisition instrument according to claim 6, characterized in that: The MCU module (113) is also used to control the POWERBUS communication module (114) to turn off the power supply to the single-point settlement gauge unit (4) and turn off the power supply to most of the peripheral circuits when there is no settlement monitoring task, and enter the sleep state.

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