CN115665839A - Multichannel low-power-consumption online fixed-point thickness measuring system and method - Google Patents
Multichannel low-power-consumption online fixed-point thickness measuring system and method Download PDFInfo
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Abstract
The invention provides a multichannel low-power consumption on-line fixed-point thickness measuring system and method, which can realize multichannel low-power consumption thickness measurement and have low cost. Different states are configured for the on-line thickness gauge, so that the on-line thickness gauge is continuously switched among the states, and the on-line thickness gauge enters a dormant state in time when an acquisition task is completed, the power consumption of the on-line thickness gauge is greatly reduced, the on-line monitoring time is prolonged, the on-line monitoring can be carried out for a long time, and an equipment battery can be used for equipment to work for two years under the condition of acquiring twice a day; the on-line thickness measuring instrument adopts a multi-channel design, one wireless communication module corresponds to a plurality of thickness measuring plates, the price of each monitoring point position is effectively reduced, the cost and expense of a single monitoring point for on-line thickness measurement are saved, meanwhile, the ultrasonic probe can be installed and different positions of a pipeline can be monitored, the monitoring of the same position and different directions can be realized, and the corrosion forms of the same position and different directions can be compared.
Description
Technical Field
The invention relates to the technical field of online thickness measurement, in particular to a multichannel low-power consumption online fixed-point thickness measurement system and method.
Background
At present, an ultrasonic thickness measurement technology is generally adopted to regularly detect the thickness of a pipe wall aiming at the problem of pipe corrosion, the ultrasonic thickness measurement technology is an active nondestructive detection technology, wherein a pulse reflection method is one of the commonly used methods for ultrasonic thickness measurement, an ultrasonic probe is attached to the outer wall of a pipe to be detected, the transmission time difference of a primary echo signal and a secondary echo signal of the inner wall of the pipe is multiplied by the propagation sound velocity of ultrasonic waves in a pipe wall material to obtain the thickness of the pipe wall, and then the pipe wall corrosion condition is determined. With the development of the data transmission technology and the ultrasonic thickness measurement technology of the internet of things, the realization of the on-line fixed-point thickness measurement monitoring makes it possible to replace manual monitoring, but the development of the current on-line thickness measurement technology is not perfect. Although some existing online fixed-point thickness measuring systems comprise a pipeline monitoring point thickness measuring data acquisition module, a data wireless transmission module and a data access network module, pipeline thickness measuring monitoring is achieved through remote wireless data transmission, the data acquisition and transmission data volume is relatively small, only temperature values and thickness values are transmitted under common conditions, transmission of waveform data cannot be achieved, the communication distance is short, multiple relays are needed, the data acquisition power consumption is large, and real-time acquisition and long-term acquisition cannot be achieved. Meanwhile, the price of monitoring one point location by the current online thickness measuring system is relatively high, and the cost is huge if a plurality of points need to be monitored.
Disclosure of Invention
In view of this, the invention provides a multichannel low-power consumption on-line fixed-point thickness measuring system and method, which can realize multichannel low-power consumption thickness measurement and have low cost.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a multichannel low-power consumption online fixed point thickness measurement system comprises: the system comprises a data server, a wireless gateway, an online thickness gauge and an ultrasonic probe; the data server and the wireless gateway are deployed on a user local area network, a user client is connected to the user local area network, power is supplied in real time by adopting rated voltage alternating current, and the data server and the wireless gateway are constantly in a working state; the online thickness gauge and the ultrasonic probe are arranged at each monitoring point;
the data server is a control center of the whole system, issues each instruction to the wireless gateway and receives data uploaded by the wireless gateway; the wireless gateway is used for realizing communication between the data server and the online thickness gauges, and one wireless gateway corresponds to a plurality of online thickness gauges; the on-line thickness gauge comprises a data acquisition module, an MCU (microprogrammed control unit), a power supply and a wireless communication module, wherein the power supply of the on-line thickness gauge is a battery pack, the data acquisition module integrates a plurality of thickness measuring plates, one thickness measuring plate is connected with an ultrasonic probe to form a detection channel, the MCU controls the power on/off of each thickness measuring plate according to a received instruction, the thickness measuring plates are used for acquiring thickness measuring data and uploading the acquired thickness measuring data to the wireless communication module, and the wireless communication module transmits the thickness measuring data to the wireless gateway; the thickness measurement data comprises hardware parameters, temperature, thickness and waveform;
the specific working flow of the system is as follows:
when the task time point of collecting data by the wall thickness is reached, the data server sends an activation instruction to the wireless gateway; the wireless gateway sends the received activation instruction to a wireless communication module of the online thickness gauge; the wireless communication module enters an activation state after receiving the activation instruction, and returns the activated instruction to the wireless gateway and then to the data server; after receiving the activated instruction, the data server issues an acquisition instruction with the number of the thickness measuring plate to the wireless gateway; the wireless gateway sends the received acquisition instruction to a wireless communication module of the online thickness gauge and then forwards the acquisition instruction to an MCU of the online thickness gauge, the MCU supplies power to the thickness gauge plate corresponding to the detection channel according to the received acquisition instruction and the number of the thickness gauge plate and forwards the acquisition instruction to the thickness gauge plate, and the thickness gauge plate is electrified to execute the acquisition instruction to acquire thickness measurement data and upload the acquired thickness measurement data to the wireless communication module; the wireless communication module transmits the thickness measuring data to a wireless gateway; the wireless gateway uploads the received thickness measuring data to a data server; after the data server receives the thickness measurement data, the acquisition task at the time point is executed completely, then a sleep instruction is issued to the wireless gateway, the wireless gateway issues the received sleep instruction to the online thickness gauge, and the online thickness gauge enters a sleep state after receiving the sleep instruction and waits for the next activation.
Each thickness measuring plate comprises a transmitting circuit, a front-end signal amplitude limiting circuit, an amplifying circuit, a filtering circuit, an analog-to-digital conversion circuit, an FPGA and a main control module; the transmitting circuit enables the inductor to generate high voltage through charging and discharging through the disconnection of the MOS tube, and drives the ultrasonic probe to generate ultrasonic waves; the front-end signal amplitude limiting circuit converts the reflected signal received by the ultrasonic probe into an analog signal and carries out high-voltage signal suppression; analog signals output by the front-end signal amplitude limiting circuit are amplified and filtered sequentially by the amplifying circuit and the filtering circuit and then output to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit converts the input analog signals into digital signals, samples the digital signals and sends the digital signals to the FPGA for data processing; the FPGA carries out interpolation and cross-correlation processing on input signals, the results are output to the main control module, and the main control module processes the input results to obtain final thickness measuring data and outputs the final thickness measuring data to the wireless communication module.
The wireless gateway integrates two wireless communication units, one is used for data transmission and the other is used for data reception.
The wireless communication is LoRa wireless communication, and the communication data are based on a TCP/IP protocol.
Wherein, the ultrasonic probe is integrated with the transceiver.
Wherein the rated voltage alternating current is AC220V alternating current.
Wherein, the power supply of the online thickness gauge is a 14.4V lithium battery pack.
The invention discloses a multichannel low-power consumption online fixed-point thickness measuring method, which is realized by adopting the system of the invention and comprises the following steps: the data server and the wireless gateway are deployed on a user local area network, a user client is connected to the user local area network, power is supplied in real time by adopting rated voltage alternating current, and the user client is in a working state all the time; installing an online thickness gauge and an ultrasonic probe at each monitoring point; when the task time point of collecting data of the wall thickness is reached, the data server sends an activation instruction to the wireless gateway; the wireless gateway sends the received activation instruction to a wireless communication module of the online thickness gauge; the wireless communication module enters an activation state after receiving the activation instruction, and returns the activated instruction to the wireless gateway and then to the data server; after receiving the activated instruction, the data server sends an acquisition instruction with the thickness measuring plate number to the wireless gateway; the wireless gateway sends the received acquisition instruction to a wireless communication module of the on-line thickness gauge and then forwards the acquisition instruction to an MCU of the on-line thickness gauge, the MCU supplies power to the thickness gauge plate corresponding to the detection channel according to the received acquisition instruction and the number of the thickness gauge plate and forwards the acquisition instruction to the thickness gauge plate, and the thickness gauge plate is electrified and then executes the acquisition instruction to acquire thickness measurement data and uploads the acquired thickness measurement data to the wireless communication module; the wireless communication module transmits the thickness measuring data to a wireless gateway; the wireless gateway uploads the received thickness measurement data to a data server; after the data server receives the thickness measurement data, the acquisition task at the time point is executed, then a sleep instruction is issued to the wireless gateway, the wireless gateway issues the received sleep instruction to the online thickness gauge, and the online thickness gauge enters a sleep state after receiving the sleep instruction.
Has the beneficial effects that:
1. according to the invention, different states are configured for the on-line thickness gauge, so that the on-line thickness gauge is continuously switched among the states, and the on-line thickness gauge enters a dormant state in time when an acquisition task is completed, thus the power consumption of the on-line thickness gauge is greatly reduced, the on-line monitoring time is prolonged, the on-line monitoring can be carried out for a long time, and the battery of the equipment can be used for the equipment to work for two years under the condition of acquiring twice a day; the on-line thickness gauge adopts a multi-channel design, one wireless communication module corresponds to a plurality of thickness measuring plates, the price of each monitoring point position is effectively reduced, on one hand, the cost of a single monitoring point for on-line thickness measurement is saved, on the other hand, the multi-channel on-line thickness gauge can be used for monitoring the ultrasonic probe at different positions of a pipeline, and can also be used for monitoring the same position in different directions and comparing the corrosion forms at the same position in different directions.
2. In order to realize high-precision thickness measurement and further reduce the power consumption of the thickness measuring boards, each thickness measuring board comprises a transmitting circuit, a front-end signal amplitude limiting circuit, an amplifying circuit, a filter circuit, an analog-digital conversion circuit, an FPGA and a main control module, wherein the main control module is the core of the whole data acquisition module, and all logic operation and most control functions are completed by the main control module. High-precision thickness measurement is realized through filtering and signal processing, and power consumption is further reduced through the circuit principle design of the thick plate.
3. Because the wireless gateway corresponds to the plurality of online thickness gauges at the same time, when the plurality of online thickness gauges communicate with the wireless gateway at the same time, the condition of transceiving conflict is easy to occur.
4. The method relies on the LoRa wireless communication technology to perform sub-packet processing on the transmitted waveform data, solves the problem of limitation of the LoRa mode on the maximum data packet length, realizes wireless transmission of the waveform data, provides detailed monitoring data for a user, can better analyze the corrosion form of the pipe wall, and ensures the accuracy of the measured data.
Drawings
FIG. 1 is a system diagram according to an embodiment of the present invention.
FIG. 2 is a timing diagram of a thickness measurement instruction according to the present invention.
FIG. 3 is a schematic view of the working principle of the thickness measuring plate of the on-line thickness measuring instrument of the invention.
Detailed Description
The invention is described in detail below by way of example with reference to the accompanying drawings.
The invention provides a multichannel low-power consumption on-line fixed-point thickness measuring system, which comprises: data server, wireless gateway, online calibrator and ultrasonic probe. The data server and the wireless gateway are deployed on a user local area network, a user client is connected to the user local area network, AC220V is adopted for supplying power in real time, the user client is in a working state all the time, wall thickness monitoring system software is deployed on the data server, wall thickness monitoring data can be checked in real time by accessing the data server, and multipoint online monitoring is realized at one position; the online thickness gauge and the ultrasonic probe are arranged at each monitoring point.
The data server is a control center of the whole system, issues each instruction to the wireless gateway and receives data uploaded by the wireless gateway; the wireless gateway is used for realizing communication between the data server and the online thickness gauges, and one wireless gateway corresponds to a plurality of online thickness gauges; the on-line thickness gauge comprises a data acquisition module, an MCU (micro control unit), a power supply and a wireless communication module, wherein a plurality of thickness measuring plates are integrated by one data acquisition module, one thickness measuring plate is connected with one ultrasonic probe to form a detection channel, the MCU (micro control unit) controls the power on/off of each power supply of the thickness measuring plate according to a received instruction, the thickness measuring plate is used for acquiring thickness measuring data and uploading the acquired thickness measuring data to the wireless communication module, the wireless communication module transmits the thickness measuring data to the wireless gateway, and the thickness measuring data acquisition of a plurality of monitoring points is realized. The thickness measurement data includes hardware parameters, temperature, thickness, and waveform.
The on-line thickness gauge adopts 14.4V lithium cell group power supply, and the on-line thickness gauge divide into three state: dormant state, active state, working state. When the communication and thickness measurement data acquisition tasks are not executed, the online thickness gauge is in a non-working state, namely a dormant state, and the current is 10 muA; the wireless communication module is activated, and is in a state of being capable of communicating, and each thickness measuring plate is in an activated state when not in a working state, and the current is 8mA; when the thickness measuring data acquisition task is executed, the data acquisition module works and receives and sends data through the wireless communication module, namely, the data acquisition module is in a working state, and the current is 45mA.
In the system of this embodiment, as shown in fig. 1, one wireless gateway corresponds to a plurality of online thickness meters, and one online thickness meter integrates 4 thickness measurement plates and connects 4 ultrasonic probes to form 4 detection channels. The on-line thickness gauge adopts a multi-channel design, one wireless communication module corresponds to a plurality of thickness measuring plates, the price of each monitoring point position is effectively reduced, the cost of a single monitoring point for on-line thickness measurement is saved, and the multi-channel on-line thickness gauge can monitor different positions of an ultrasonic probe and a pipeline and can also monitor the same position in different directions and compare the corrosion forms of the same position in different directions. Taking a pipeline elbow as an example, comparing the corrosion conditions of the elbow position in four directions of 0,3,6 and 9 o' clock, the position of the pipeline elbow in which the corrosion is the most serious can be clearly analyzed, and corresponding protection is carried out.
The specific work flow of the system is as follows:
when the task time point of collecting data of the wall thickness is reached, the data server sends an activation instruction to the wireless gateway; the wireless gateway sends the received activation instruction to a wireless communication module of the online thickness gauge; the wireless communication module enters an activation state after receiving the activation instruction, and returns the activated instruction to the wireless gateway and then to the data server, the wireless communication module can be activated only under the activation instruction, and can perform normal communication only after entering the activation state; after receiving the activated instruction, the data server issues an acquisition instruction with the number of the thickness measuring plate to the wireless gateway; the wireless gateway sends the received acquisition instruction to a wireless communication module of the on-line thickness gauge and then forwards the acquisition instruction to an MCU of the on-line thickness gauge, the MCU supplies power to the thickness gauge plate corresponding to the detection channel according to the acquisition instruction and the serial number of the thickness gauge plate, and forwards the acquisition instruction to the thickness gauge plate, and the thickness gauge plate executes the acquisition instruction to acquire thickness measurement data after being electrified and uploads the acquired thickness measurement data to the wireless communication module; the wireless communication module transmits the thickness measuring data to a wireless gateway; the wireless gateway uploads the received thickness measuring data to a data server; after the data server receives the thickness measurement data, the acquisition task at the time point is executed completely, then a sleep instruction is issued to the wireless gateway, the wireless gateway issues the received sleep instruction to the online thickness gauge, and the online thickness gauge enters a sleep state after receiving the sleep instruction and waits for the next activation. When the on-line thickness gauge enters the dormant state, the data acquisition module is powered off immediately, and the wireless communication module enters the dormant state. FIG. 2 is a timing diagram of a thickness measurement instruction according to the present invention.
In order to realize high-precision thickness measurement and further reduce the power consumption of the thickness measuring boards, in the embodiment, each thickness measuring board comprises a transmitting circuit, a front-end signal amplitude limiting circuit, an amplifying circuit, a filter circuit, an analog-to-digital conversion circuit, an FPGA and a main control module. The schematic working principle of the thickness measuring plate of the online thickness measuring instrument is shown in fig. 3, and the transmitting circuit enables the inductor to generate high voltage through charging and discharging by switching off the MOS tube, so as to drive the ultrasonic probe to generate ultrasonic waves; the front-end signal amplitude limiting circuit converts the reflected signal received by the ultrasonic probe into an analog signal and carries out high-voltage signal suppression; analog signals output by the front-end signal amplitude limiting circuit are amplified and filtered sequentially by the amplifying circuit and the filtering circuit and then output to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit converts the input analog signals into digital signals, samples the digital signals and sends the digital signals to the FPGA for data processing; the FPGA carries out interpolation and cross-correlation processing on input signals, the results are output to the main control module, the main control module processes the input results to obtain final thickness measuring data (485 data), and the final thickness measuring data are output to the wireless communication module. The main control module is the core of the whole data acquisition module, and all logic operations and most control functions are completed by the main control module. High-precision thickness measurement is realized through filtering and signal processing, and power consumption is further reduced through the circuit principle design of the thickness measurement plate.
Further, since the wireless gateway is used for transceiving communication data of a plurality of online thickness gauges, and the measurement data of the online thickness gauges includes an ultrasonic wave a-scan waveform, the transmission data volume is large. By adopting the dual-module design, the data communication can be effectively carried out with the on-line thickness gauge, the stability of data transmission is ensured, and the packet loss rate is reduced.
Furthermore, wireless communication is realized through the LoRa wireless communication technology, and communication data are all based on a TCP/IP protocol. By means of the LoRa wireless communication technology, transmitted waveform data are subjected to sub-packet processing, the limitation of the LoRa mode to the maximum data packet length is solved, wireless transmission of the waveform data is achieved, detailed monitoring data are provided for a user, the corrosion form of the pipe wall can be better analyzed, and the accuracy of measured data is guaranteed.
Preferably, in the present invention, the ultrasound probe may be a transceiver.
The invention also provides a multichannel low-power consumption online fixed-point thickness measuring method, and the system comprises the following steps:
the data server and the wireless gateway are deployed on a user local area network, a user client is connected to the user local area network and adopts AC220V real-time power supply to be in a working state all the time; installing an online thickness gauge and an ultrasonic probe at each monitoring point, wherein the online thickness gauge is powered by a 14.4V lithium battery pack; when the task time point of collecting data by the wall thickness is reached, the data server sends an activation instruction to the wireless gateway; the wireless gateway sends the received activation instruction to a wireless communication module of the online thickness gauge; the wireless communication module enters an activation state after receiving the activation instruction, returns the activated instruction to the wireless gateway and then to the data server, and can be activated only under the activation instruction and can carry out normal communication only after entering the activation state; after receiving the activated instruction, the data server sends an acquisition instruction with the thickness measuring plate number to the wireless gateway; the wireless gateway sends the received acquisition instruction to a wireless communication module of the on-line thickness gauge and then forwards the acquisition instruction to an MCU of the on-line thickness gauge, the MCU supplies power to the thickness gauge plate corresponding to the detection channel according to the acquisition instruction and the serial number of the thickness gauge plate, and forwards the acquisition instruction to the thickness gauge plate, and the thickness gauge plate executes the acquisition instruction to acquire thickness measurement data after being electrified and uploads the acquired thickness measurement data to the wireless communication module; the wireless communication module transmits the thickness measuring data to a wireless gateway; the wireless gateway uploads the received thickness measuring data to a data server; after the data server receives the thickness measurement data, the acquisition task at the time point is executed completely, then a sleep instruction is issued to the wireless gateway, the wireless gateway issues the received sleep instruction to the online thickness gauge, and the online thickness gauge enters a sleep state after receiving the sleep instruction and waits for the next activation. When the on-line thickness gauge enters the dormant state, the data acquisition module is powered off immediately, and the wireless communication module enters the dormant state.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The utility model provides a multichannel low-power consumption online fixed point thickness measurement system which characterized in that includes: the system comprises a data server, a wireless gateway, an online thickness gauge and an ultrasonic probe; the data server and the wireless gateway are deployed on a user local area network, a user client is connected to the user local area network, power is supplied in real time by adopting rated voltage alternating current, and the data server and the wireless gateway are constantly in a working state; the online thickness gauge and the ultrasonic probe are arranged at each monitoring point; the data server is a control center of the whole system, issues each instruction to the wireless gateway and receives data uploaded by the wireless gateway; the wireless gateway is used for realizing communication between the data server and the online thickness gauges, and one wireless gateway corresponds to a plurality of online thickness gauges; the on-line thickness gauge comprises a data acquisition module, an MCU (microprogrammed control unit), a power supply and a wireless communication module, wherein the power supply of the on-line thickness gauge is a battery pack, the data acquisition module integrates a plurality of thickness measuring plates, one thickness measuring plate is connected with an ultrasonic probe to form a detection channel, the MCU controls the power on/off of each thickness measuring plate according to a received instruction, the thickness measuring plates are used for acquiring thickness measuring data and uploading the acquired thickness measuring data to the wireless communication module, and the wireless communication module transmits the thickness measuring data to the wireless gateway; the thickness measurement data comprises hardware parameters, temperature, thickness and waveform; the specific working flow of the system is as follows: when the task time point of collecting data by the wall thickness is reached, the data server sends an activation instruction to the wireless gateway; the wireless gateway sends the received activation instruction to a wireless communication module of the online thickness gauge; the wireless communication module enters an activation state after receiving the activation instruction, and returns the activated instruction to the wireless gateway and then to the data server; after receiving the activated instruction, the data server sends an acquisition instruction with the thickness measuring plate number to the wireless gateway; the wireless gateway sends the received acquisition instruction to a wireless communication module of the online thickness gauge and then forwards the acquisition instruction to an MCU of the online thickness gauge, the MCU supplies power to the thickness gauge plate corresponding to the detection channel according to the received acquisition instruction and the number of the thickness gauge plate and forwards the acquisition instruction to the thickness gauge plate, and the thickness gauge plate is electrified to execute the acquisition instruction to acquire thickness measurement data and upload the acquired thickness measurement data to the wireless communication module; the wireless communication module transmits the thickness measuring data to a wireless gateway; the wireless gateway uploads the received thickness measurement data to a data server; after the data server receives the thickness measurement data, the acquisition task at the time point is executed completely, then a sleep instruction is issued to the wireless gateway, the wireless gateway issues the received sleep instruction to the online thickness gauge, and the online thickness gauge enters a sleep state after receiving the sleep instruction and waits for the next activation.
2. The system of claim 1, wherein each thickness measuring board comprises a transmitting circuit, a front-end signal amplitude limiting circuit, an amplifying circuit, a filtering circuit, an analog-to-digital conversion circuit, an FPGA and a main control module; the transmitting circuit enables the inductor to generate high voltage through charging and discharging through the disconnection of the MOS tube, and drives the ultrasonic probe to generate ultrasonic waves; the front-end signal amplitude limiting circuit converts the reflected signal received by the ultrasonic probe into an analog signal and carries out high-voltage signal suppression; analog signals output by the front-end signal amplitude limiting circuit are amplified and filtered sequentially by the amplifying circuit and the filtering circuit and then output to the analog-to-digital conversion circuit, and the analog-to-digital conversion circuit converts the input analog signals into digital signals, samples the digital signals and sends the digital signals to the FPGA for data processing; the FPGA carries out interpolation and cross-correlation processing on input signals, the results are output to the main control module, and the main control module processes the input results to obtain final thickness measuring data and outputs the final thickness measuring data to the wireless communication module.
3. The system of claim 1 or 2, wherein the wireless gateway integrates two wireless communication units, one for data transmission and one for data reception.
4. The system of claim 3, wherein the wireless communication is a LoRa wireless communication, and the communication data is based on a TCP/IP protocol.
5. The system of claim 1, 2 or 4, wherein the ultrasound probe is transceiver-integrated.
6. A system as claimed in claim 1, 2 or 4, wherein the nominal voltage AC is AC220V AC.
7. The system of claim 6, wherein the power source of the online thickness gauge is a 14.4V lithium battery pack.
8. A multichannel low-power consumption online fixed-point thickness measuring method, which is realized by the system of claim 1, 2, 4 or 7, and comprises the following steps: the data server and the wireless gateway are deployed on a user local area network, a user client is connected to the user local area network, power is supplied in real time by adopting rated voltage alternating current, and the user client is in a working state all the time; installing an online thickness gauge and an ultrasonic probe at each monitoring point; when the task time point of collecting data by the wall thickness is reached, the data server sends an activation instruction to the wireless gateway; the wireless gateway sends the received activation instruction to a wireless communication module of the online thickness gauge; the wireless communication module enters an activation state after receiving the activation instruction, and returns the activated instruction to the wireless gateway and then to the data server; after receiving the activated instruction, the data server sends an acquisition instruction with the thickness measuring plate number to the wireless gateway; the wireless gateway sends the received acquisition instruction to a wireless communication module of the on-line thickness gauge and then forwards the acquisition instruction to an MCU of the on-line thickness gauge, the MCU supplies power to the thickness gauge plate corresponding to the detection channel according to the received acquisition instruction and the number of the thickness gauge plate and forwards the acquisition instruction to the thickness gauge plate, and the thickness gauge plate is electrified and then executes the acquisition instruction to acquire thickness measurement data and uploads the acquired thickness measurement data to the wireless communication module; the wireless communication module transmits the thickness measuring data to a wireless gateway; the wireless gateway uploads the received thickness measuring data to a data server; after the data server receives the thickness measurement data, the acquisition task at the time point is executed, then a sleep instruction is issued to the wireless gateway, the wireless gateway issues the received sleep instruction to the online thickness gauge, and the online thickness gauge enters a sleep state after receiving the sleep instruction.
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| CN118009945A (en) * | 2024-04-09 | 2024-05-10 | 北京天江源科技有限公司 | Pipeline wall thickness on-line monitoring system and thickness gauge |
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