CN112540561A - Wireless online monitoring system and method based on industrial Internet of things - Google Patents
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Abstract
The invention discloses a wireless online monitoring system based on an industrial Internet of things, which comprises a terminal acquisition system, an online monitoring system and a plurality of current signal acquisition systems, wherein the terminal acquisition systems are connected with the online monitoring system through a network; the terminal acquisition system is respectively connected with the current signal acquisition system and the online monitoring system; the current signal acquisition system is used for acquiring monitoring data and transmitting the monitoring data to the terminal acquisition system; the monitoring data at least comprises a current value, a power value and a unique identifier of a current signal acquisition system; the terminal acquisition system is used for receiving monitoring data information sent by the current signal acquisition system and forwarding the monitoring data information to the online monitoring system; the on-line monitoring system receives monitoring data information sent by the terminal acquisition system and sends alarm information and signals when the monitoring data is abnormal. The invention also discloses a wireless online monitoring method based on the industrial Internet of things. The invention can realize low-cost and accurate monitoring of the running state of the equipment.
Description
Technical Field
The invention belongs to the field of industrial Internet of things, relates to monitoring of relevant running states of equipment, and particularly relates to a wireless online monitoring system and method based on the industrial Internet of things.
Background
The industrial internet of things is a new stage which continuously integrates various acquisition and control sensors or controllers with sensing and monitoring capabilities, mobile communication, intelligent analysis and other technologies into the industrial production process, so that the manufacturing efficiency is greatly improved, the product quality is improved, the product cost and the resource consumption are reduced, and the traditional industry is finally promoted to be intelligent. The method has the characteristics of real-time performance, automation, embedded software, safety, information intercommunication and interconnection and the like;
industrial Internet of things equipment monitoring system for factory equipment is mainly characterized in that various sensors with sensing capability are as follows: the current sensor, the voltage sensor, the vibration sensor, the pressure sensor, the noise sensor and the like are controlled to monitor the relevant states of the equipment, and the monitored data are uploaded to a remote server in real time through a specified wireless communication protocol. And analyzing various possible conditions in the current equipment running state by analyzing the big data through the server. Finally, according to the analysis and accumulation of the data, corresponding early warning information is given before the equipment runs in a possibly dangerous state;
in the prior art, monitoring sensors of most monitoring systems need to be modified to some extent, data acquisition and monitoring modules are organically combined with equipment to be monitored, related sensors are embedded into the equipment to be monitored, and related modification of a power supply is performed to supply power to the monitoring modules. The limitation of this approach is that not all devices can be modified accordingly. Meanwhile, the scheme is not suitable for old equipment which runs for years.
Therefore, how to effectively monitor some important old equipment or precision equipment which cannot be modified becomes a problem which needs to be solved urgently.
Disclosure of Invention
Aiming at the technical problems, the invention provides a wireless online monitoring system and a wireless online monitoring method based on an industrial Internet of things, which can accurately detect equipment operation data without modification.
In order to achieve the purpose, the invention adopts the technical scheme that:
a wireless online monitoring system based on an industrial Internet of things comprises a terminal acquisition system, an online monitoring system and a plurality of current signal acquisition systems; each current signal acquisition system is used for acquiring monitoring data and sending the monitoring data to the terminal acquisition system; the monitoring data at least comprises a current value, a power value and a unique identifier of the current signal acquisition system; the terminal acquisition system is used for receiving monitoring data information sent by the current signal acquisition system and forwarding the monitoring data information to the online monitoring system; the on-line monitoring system is used for receiving monitoring data information sent by the terminal acquisition system, storing, displaying and analyzing the monitoring data, and sending alarm information and signals when the monitoring data is abnormal.
The current signal acquisition system includes: the device comprises a current signal measuring module, a power supply control module, a main control module, a communication module and a power supply system;
the current signal measuring module is used for acquiring a measured value of current flowing through a power supply cable and sending the measured value to the main control module;
the main control module is used for controlling the current signal measuring module to obtain the measured value, storing and calculating a corresponding current value and a corresponding power value, and controlling the communication module to transmit the current value and the power value to the terminal acquisition system;
the power supply control module is used for controlling the power supply of the current signal measuring module, and when the power supply control module is in a low-power-consumption running state, the main control module controls the power supply control module to cut off the power supply of the current signal measuring module, so that the power consumption of equipment is reduced to the lowest in a sleep state;
the communication module is used for communicating with the terminal acquisition system under the control of the main control module;
the power supply system is used for providing working voltage for the current measuring module, the main control module and the communication module.
Further, the current signal measuring module includes: the current transformer is used for measuring a current value and sending the current value to the main control module, and the dial switch is used for informing the main control module about the measuring range of the current transformer; the current signal measuring module is connected with the current signal collecting system main body through two core wires, one of the core wires sends out a voltage value after current measuring signal conversion, the voltage value range is between 0 and 1 volt, and the range of the current signal measuring module is adjusted by adjusting the dial switch.
Furthermore, the main control module is further used for monitoring the working states of the current signal measuring module, the display module and the communication module, and performing corresponding control to obtain and control power supply.
Further, the power supply system comprises a lithium manganese battery, a super capacitor and a power supply voltage stabilizing module; the lithium-manganese battery is used for providing power voltage, and the super capacitor provides instantaneous power requirement required by the communication module when sending information; the voltage stabilizing module is used for converting the power supply voltage of the lithium-manganese battery into the working voltage required by the current signal measuring module, the main control module and the communication module and outputting the working voltage to the current signal measuring module, the main control module, the display module and the communication module.
Furthermore, the communication module adopts the Lora wireless point-to-point communication technology and communicates with the terminal acquisition system through a UART (universal asynchronous receiver/transmitter) or SPI (serial peripheral interface).
Furthermore, the main control module adds a key to the STM8L processor, and the output information of the display module is controlled through the key.
Furthermore, the current signal acquisition system also comprises a display module which is a customized section code liquid crystal and is directly driven by the main control module.
Further, the terminal acquisition system includes: a lora collector and a 5G module; the communication module of the current signal acquisition system transmits the monitoring data of the current signal acquisition system to the terminal acquisition system through the lora acquisition device; the terminal acquisition system forwards the monitoring data to an online monitoring system through the 5G module;
the on-line monitoring system receives, stores, displays and analyzes the monitoring data sent by the terminal acquisition system, the on-line monitoring system comprises a data acquisition module, a data analysis module and a data storage module, and the on-line monitoring system is configured with a fixed IP;
the data acquisition module receives the monitoring data of each current signal acquisition system transmitted from the terminal acquisition system and processes the monitoring data to distinguish the current signal acquisition system corresponding to the monitoring data; the data analysis module analyzes the monitoring data processed by the data acquisition module and checks the current working state of the equipment monitored by the corresponding current signal acquisition system; the data storage module is used for storing relevant data of each current signal acquisition system uploaded by the terminal acquisition system and displaying the working state of the equipment monitored by each current signal acquisition system under the condition that different working currents correspond to each other through data accumulation.
The invention also discloses a wireless online monitoring method based on the industrial Internet of things, which comprises the following steps: the current monitoring is to sense a measured value of current flowing on a power supply cable through a current acquisition module in a current signal acquisition system, convert a primary side large current into a secondary side small current for measurement, transmit the converted measured value to a main control module of the current signal acquisition system through AD sampling, calculate and store a current value and a power value corresponding to the measured value by the main control module, and upload the current value and the power value to an online monitoring system through a terminal acquisition system; and when judging that the current value or the power value is higher than a preset threshold value, the main control module controls a communication module of the current signal acquisition system to send alarm information to the terminal acquisition system.
Further, the main control module may control the current signal measuring module to obtain a current value and calculate a corresponding power value when a preset measurement value obtaining period is reached; and when the preset data sending period is reached, controlling the communication module to send the current value measured in the period and the calculated power value to the terminal acquisition system.
Further, after the current signal acquisition system is powered on, the system is initialized and then enters a HALT low power consumption state, and meanwhile, the system is awakened by waiting for an interrupt trigger state. The interrupt trigger state includes: key press interrupts, timer interrupts, and Lora wake interrupts.
When a maintenance worker presses a key of the current signal acquisition system, triggering the key interruption state, shielding the timing interruption and the Lora awakening interruption, and if the key is not pressed within a preset time threshold, enabling the current signal acquisition system to enter the HALT low-power-consumption state again and waiting for the next interruption and awakening;
the method comprises the steps that a current signal acquisition system is circularly triggered to enter an interrupt triggering state through fixed time in a timing mode, when the timing interrupt state is triggered, the current signal acquisition system firstly controls a current measurement module to measure through a main control module and judges whether a measured value changes or not, if the measured value does not change, the current signal acquisition system returns to a HALT state, and if the measured value changes, the calculated measured value is sent to a terminal acquisition system corresponding to a current value or a current value and a power value through a communication module; in the process, if the current value is within a preset threshold range, the main control module uploads the current value to the terminal acquisition system, and if the current value exceeds the preset threshold, the main control module uploads a power value and alarm state indication information to the terminal acquisition system while uploading the current value;
the Lora awakening interruption is triggered by the on-line monitoring system sending communication information to the current signal acquisition system through the terminal acquisition system, and after the on-line monitoring system triggers, the current signal acquisition system uploads the current value and the power value which are measured currently to the terminal acquisition system and then enters the HALT state again.
Further, the on-line monitoring system stores, displays and analyzes the received current value and power value; finally, the power utilization state under the normal working state is formed. The operation of the equipment is continuously monitored based on the power utilization state under the normal working state, and when monitoring data are abnormal, the online monitoring system sends alarm information and signals. The online monitoring system comprises a data acquisition module, a data analysis module and a data storage module; the data acquisition module receives the monitoring data of each current signal acquisition system transmitted from the terminal acquisition system and processes the monitoring data to distinguish the current signal acquisition system corresponding to the monitoring data; the data analysis module analyzes the monitoring data processed by the data acquisition module and checks the current working state of the equipment monitored by the corresponding current signal acquisition system; the data storage module is used for storing relevant data of each current signal acquisition system uploaded by the terminal acquisition system and displaying the working state of the equipment monitored by each current signal acquisition system under the condition that different working currents correspond to each other through data accumulation.
Further, when the current signal acquisition system is in a low power consumption mode, the power consumption range is 10ua-20ua, the low power consumption wake-up time is 5 seconds to 30 minutes, and the time can be modified by controlling the current signal acquisition system through the terminal acquisition system in the on-line monitoring system according to the user requirements; when the current signal acquisition system is interrupted and awakened to enter a working mode, the working time required in the timed interruption and the Lora awakening interruption is between 500 milliseconds and 1 second; when the key is interrupted, the operation time of the user is determined.
The invention has the following beneficial effects: the system of the invention can realize nondestructive detection without modifying the equipment to be monitored while meeting the related detection requirements, and can realize nondestructive detection by installing the monitoring equipment without influencing the normal production state of the equipment even if the equipment is in operation, which is a good supplementary means for the existing equipment monitoring technology, and is a good auxiliary monitoring equipment for the equipment which needs monitoring the state of the equipment and can not be changed. Meanwhile, due to the adoption of a low-power-consumption wireless transmission mode, the complexity and complexity of wiring are avoided, and meanwhile, the low-power-consumption power supply technology can normally run for many years without replacing batteries, so that the cost is greatly saved.
Drawings
Fig. 1 is a schematic structural diagram of a wireless online monitoring system based on an industrial internet of things according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a hardware structure of a current signal acquisition system according to an embodiment of the present invention.
Fig. 3 is a flowchart of the software operation of the current signal acquisition system according to the embodiment of the present invention.
Fig. 4 is a schematic diagram of a hardware structure of a terminal acquisition system according to an embodiment of the present invention.
Fig. 5 is a schematic diagram of a hardware structure of an online monitoring system according to an embodiment of the present invention.
Detailed Description
In order to facilitate understanding of those skilled in the art, the present invention will be further described with reference to the following embodiments and accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present disclosure, but are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
As shown in fig. 1, the wireless online monitoring system and method based on the industrial internet of things in the embodiments of the present disclosure includes:
the system comprises a terminal acquisition system, an online monitoring system and a plurality of current signal acquisition systems;
each current signal acquisition system is used for acquiring the measurement data of the equipment current and sending the measurement data to a terminal acquisition system through a private communication protocol based on a lora communication mode;
as shown in fig. 2, the current signal collecting system may specifically include: the device comprises a current signal measuring module, a main control module, a communication module, a display module and a power supply system.
In practical use, because the current signal measuring module adopts the open-type current transformer, the current signal measuring module can be installed on an external power supply cable of equipment and also can be installed on an internal power supply cable of the equipment, and the equipment and the cables do not need to be modified. The current signal measuring module is connected with the current signal acquisition system main body through two core wires, one of the two core wires sends out a voltage value after the current measuring signal is converted, the voltage value range is between 0 and 1 volt, the corresponding current measuring range is 0 to 10A, 0 to 20A, 0 to 50A and the like, and a field installer can adjust a dial switch on the current signal measuring module according to the maximum current of equipment operation to select the measuring range of the current signal measuring module.
In practical application, the current signal measuring module may include: the current transformer is used for measuring a current value and sending the current value to the main control module, and the dial switch is used for informing the main control module about the measuring range of the current transformer;
the current acquisition module adopts a mutual inductor module to induce a current value flowing on a power line by an electromagnetic induction principle, and converts a large current on a primary side into a small current on a secondary side for measurement. The converted measured value transmits data to the main control module through the AD acquisition pin, the main control module calculates through a set algorithm, and the calculated measured voltage value is converted into a corresponding current value, so that the current transformer not only can play a role in current conversion in actual use, but also has an electrical isolation function, is safe and stable in use, and cannot cause any potential unstable factor. The output value of the current transformer not only has a voltage value, but also has a current value, and this example is not particularly limited thereto.
The main control module is a core module of the whole current signal acquisition system and has the following functions: the storage, calculation and transceiving of data can be completed. The main control module may be configured to control the current collecting module to obtain the current value, calculate a power value of the device based on the current value (the default ac voltage value is 220V, or a 380V ac voltage value may be selected by a dial switch), and store the current measurement value and the power calculation value. And controlling the communication module to communicate with a terminal acquisition system when the current value and the power value are judged to meet preset conditions.
The main control module can control the current signal measuring module to obtain a current value and calculate a corresponding power value when a preset measured value obtaining period is reached; and when the preset data sending period is reached, controlling the communication module to send the current value measured in the period and the calculated power value to the terminal acquisition system.
The preset conditions may include: the current measurement is above a preset threshold. Correspondingly, the main control module may be configured to: and when the current measurement value is higher than a preset threshold value, controlling the communication module to send alarm information to the terminal acquisition system.
The master control module may be a low power STM8L processor. In the actual use process, other low-power processors can be selected as chips used by the main control module according to actual requirements, such as: the 32-bit ARM low power consumption chip is not specifically limited herein.
The power supply system is used for providing working voltage for the current signal measuring module, the main control module, the display module and the communication module. The power supply system comprises a lithium polymer battery, a super capacitor and a power supply voltage stabilizing module; the lithium polymer battery is used for providing power supply voltage for the system, and the super capacitor provides instantaneous power requirement required by the communication module when sending information; the power supply voltage stabilizing module is used for stably converting the voltage provided by the lithium polymer battery into the working voltages suitable for the current signal measuring module, the main control module and the communication module respectively and outputting the working voltages to the current signal measuring module, the main control module and the communication module.
The lithium polymer battery can be a disposable lithium sub-battery, the output voltage is 2.0V-3.6V, the working voltage required by the current signal measuring module, the main control module and the communication module is 3.0V, and the power supply voltage stabilizing module can stabilize the output voltage of the lithium sub-battery to 3.0V and provide the output voltage for each module. In practical application, the lithium sub-battery and the super capacitor can adopt a mode of combining ER26500 and a 5.5V1F super capacitor, so that the high-capacity and low-discharge characteristics can be met, and the instantaneous transmission power requirement of a communication module can be met. The power supply voltage stabilizing module can adopt a low dropout LDO developed by CMOS technology, such as: HT7330-A, the leakage current of the module during low-power-consumption operation is 3uA, and the input and output voltage drop is 90mV when the output current is 40ma, so that the low-power-consumption requirement of the current signal acquisition system is met.
The communication module is used for communicating with the terminal acquisition system under the control of the main control module. The communication module is a Lora module, a Lora wireless point-to-point communication technology is adopted, communication is carried out with the terminal acquisition system through an SPI or a UART interface, and the Lora module and a Lora collector of the terminal acquisition system transmit information data acquired by the current signal acquisition system to the terminal acquisition system according to a customized communication protocol.
The display module is the section mode LCD screen, and accessible button awakens up when low power consumption state, switches the data that show through the button simultaneously if: current value, power value, ID number of current signal acquisition system, current working state, etc.;
fig. 3 shows a flow chart of the operation of the current signal acquisition system device. Specifically, after the current signal acquisition system is powered on, the system enters a HALT low power consumption state after initial setting, and meanwhile waits for an interrupt trigger state to wake up the system. The interrupt trigger state is: key press interrupts, timer interrupts, and Lora wake interrupts.
When a maintainer presses a key, the key interruption state is triggered, at the moment, software enters a data display state and shields the timed interruption and the Lora awakening interruption at the same time, and the main control module controls the segment type liquid crystal screen to display the ID number, the current value, the power value and the like of the current signal acquisition system. The segment type liquid crystal screen can not display the information completely at one time, so that the display content needs to be switched by pressing down the key for multiple times, if the key is not pressed down within 5 seconds, the system jumps out of the display data state, enters the HALT low-power-consumption state again, and waits for the next interrupt wakeup.
The method comprises the steps that a current signal acquisition system is circularly triggered to enter a state by a timing mode for a fixed time, when the timing interruption state is triggered, system software controls a current measurement module to measure whether the current of equipment is changed or not through a main control module, if the current is not changed, the current timing interruption state is exited, the HALT state is returned, and if the current value is changed, the current measurement value is packaged and processed, and then the current measurement value is sent to a terminal acquisition system through a communication module; in the process, if the current measured value is within the preset threshold range, the main control module only uploads the current working state current to the terminal acquisition system, and if the current measured value exceeds the preset threshold, the main control module uploads alarm state indication information to the terminal acquisition system while uploading the working current.
The Lora wake-up interrupt is triggered when the current real-time information of the current signal acquisition system is required to be checked in real time by the online monitoring system and the communication information is sent to the current signal acquisition system through the terminal acquisition system, and after the trigger, the current signal acquisition system uploads the current measured current value and power value to the terminal acquisition system and then enters the HALT state again.
It should be noted that, in the example, the master control system is in the low power consumption mode, the power consumption range is 10ua-20ua, the low power consumption wake-up time is 5 seconds to 30 minutes, and the time can be modified by controlling the current signal acquisition system through the terminal acquisition system in the on-line monitoring system according to the user requirement; when the main control system is interrupted and awakened to enter a working mode, the working time required in the timed interruption and the Lora awakening interruption is between 500 milliseconds and 1 second; when the key is interrupted, the operation time of the user is determined;
as shown in fig. 4, the terminal acquisition system includes: the Lora collector and the 5G module are used for receiving the measurement data sent by each current signal collection system and forwarding the measurement data to the online monitoring system;
it should be noted that the coverage distance of the Lora collector is at least 2km in an open area, and this characteristic enables the terminal acquisition system to acquire the measurement data sent by all the current signal acquisition systems in the coverage area. The 5G module can forward the data to an online monitoring system in a 5G communication mode;
it needs to be further explained that, after receiving the data, the terminal acquisition system performs encryption processing through an AES algorithm to prevent the communication information from being stolen, and then transmits the data to the online monitoring system through the 5G module. The main advantages of the 5G technology are that the data transmission rate is much higher than that of the 2G and 4G technologies, which is 100 times that of the 4G LTE cellular network, and the network delay is low, so the 5G DTU module is used as a hardware interface for communication between the terminal acquisition system and the online monitoring system. The measured data can be rapidly uploaded to the server, and corresponding processing can be timely performed when the acquisition system monitors abnormality.
It should be further explained that, in practical use, one workshop can meet the requirement of total coverage only by 1 terminal acquisition system, and each terminal acquisition system can support the access of at least 200 current signal acquisition systems;
the on-line monitoring system is used for receiving the measurement data sent by the terminal acquisition system, storing, displaying and analyzing the measurement data, and sending out an alarm signal and information when the measurement data is abnormal;
as shown in fig. 5, the on-line monitoring system is composed of three parts, namely data acquisition, data analysis and data storage, and the on-line monitoring system is configured with a fixed IP of a network and is directly connected with a 5G central network through an optical fiber.
The online monitoring system can adopt an open source Internet of things platform or an enterprise self-supporting Internet of things platform, and related workers can master and know the current value and the power value of each device monitored by the current signal acquisition system in real time through the online monitoring system, so that the abnormal condition of the device state can be found in time;
the data acquisition module is responsible for receiving data of each current signal acquisition system transmitted from the terminal acquisition systems, and each terminal acquisition system corresponds to a plurality of current signal acquisition systems, so that the acquired data needs to be processed to distinguish which current signal acquisition system of the group of data is uploaded; the data analysis module analyzes the data processed by the data acquisition module and checks the current working state of the equipment monitored by the corresponding current signal acquisition system; the data storage module is used for storing relevant data of each current signal acquisition system uploaded by the terminal acquisition system and displaying the specific working state of the equipment monitored by the current signal acquisition system under the condition that different working currents correspond to the equipment through long-time data accumulation.
The online monitoring system can monitor the running state and current of the equipment by monitoring the power consumption current and power of the workshop equipment, and can analyze the total current and power of all the equipment by the online monitoring system to give out the current integral power state of the workshop and give out early warning for possible problems in the running of the equipment; meanwhile, the system is compatible with the existing monitoring system in a workshop, and data monitored by the online monitoring system is transmitted to the existing monitoring system, so that the means of the existing monitoring system is more perfect, and the obtained monitoring information is more accurate.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure. Any modification made on the basis of the technical scheme according to the technical idea provided by the invention falls within the protection scope of the invention.
Claims (10)
1. The utility model provides a wireless on-line monitoring system based on industry thing networking which characterized in that: the system comprises a terminal acquisition system, an online monitoring system and a plurality of current signal acquisition systems; the terminal acquisition system is respectively connected with the current signal acquisition system and the online monitoring system;
the current signal acquisition system is used for acquiring monitoring data and sending the monitoring data to the terminal acquisition system; the monitoring data at least comprises a current value, a power value and a unique identifier of the current signal acquisition system;
the terminal acquisition system is used for receiving monitoring data information sent by the current signal acquisition system and forwarding the monitoring data information to the online monitoring system;
and the online monitoring system receives monitoring data information sent by the terminal acquisition system and sends alarm information and signals when the monitoring data is abnormal.
2. The wireless online monitoring system based on the industrial internet of things as claimed in claim 1, wherein: the current signal acquisition system comprises a current signal measurement module, a power supply control module, a main control module, a communication module and a power supply system;
the current signal measuring module is used for acquiring a measured value of current flowing through a power supply cable and sending the measured value to the main control module;
the main control module is used for controlling the current signal measuring module to obtain the measured value, storing and calculating a corresponding current value and a corresponding power value, and controlling the communication module to transmit the current value and the power value to the terminal acquisition system;
the power supply control module is used for controlling the power supply of the current signal measuring module, and when the power supply control module is in a low-power-consumption running state, the main control module controls the power supply control module to cut off the power supply of the current signal measuring module, so that the power consumption of equipment is reduced to the lowest in a sleep state;
the communication module is used for communicating with the terminal acquisition system under the control of the main control module;
the power supply system is used for providing working voltage for the current measuring module, the main control module and the communication module.
3. The wireless online monitoring system based on the industrial internet of things as claimed in claim 2, wherein: the current signal measuring module comprises a current transformer and a dial switch, the current transformer is used for measuring a current value and sending the current value to the main control module, and the dial switch is used for informing the main control module of the measuring range of the current transformer; the current signal measuring module is connected with the current signal collecting system main body through two core wires, one of the core wires sends out a voltage value after current measuring signal conversion, the voltage value range is between 0 and 1 volt, and the range of the current signal measuring module is adjusted by adjusting the dial switch.
4. The wireless online monitoring system based on the industrial internet of things as claimed in claim 2, wherein: the power supply system comprises a lithium-manganese battery, a super capacitor and a power supply voltage stabilizing module; the lithium-manganese battery is used for providing power voltage, and the super capacitor provides instantaneous power requirement required by the communication module when sending information; the voltage stabilizing module is used for converting the power supply voltage of the lithium-manganese battery into the working voltage required by the current signal measuring module, the main control module and the communication module and outputting the working voltage to the current signal measuring module, the main control module, the display module and the communication module.
5. The wireless online monitoring system based on the industrial internet of things as claimed in claim 1, wherein: the terminal acquisition system comprises a lora acquisition device and a 5G module; the communication module of the current signal acquisition system transmits the monitoring data of the current signal acquisition system to the terminal acquisition system through the lora acquisition device; the terminal acquisition system forwards the monitoring data to the online monitoring system through the 5G module;
the on-line monitoring system receives, stores, displays and analyzes the monitoring data sent by the terminal acquisition system, the on-line monitoring system comprises a data acquisition module, a data analysis module and a data storage module, and the on-line monitoring system is configured with a fixed IP;
the data acquisition module receives the monitoring data of each current signal acquisition system transmitted from the terminal acquisition system and processes the monitoring data to distinguish the current signal acquisition system corresponding to the monitoring data; the data analysis module analyzes the monitoring data processed by the data acquisition module and checks the current working state of the equipment monitored by the corresponding current signal acquisition system; the data storage module is used for storing relevant data of each current signal acquisition system uploaded by the terminal acquisition system and displaying the working state of the equipment monitored by each current signal acquisition system under the condition that different working currents correspond to each other through data accumulation.
6. A wireless online monitoring method based on an industrial Internet of things is characterized by comprising the following steps:
a current acquisition module in the current signal acquisition system senses a measured value of current flowing on a power supply cable, converts a primary side large current into a secondary side small current for measurement, transmits the converted measured value to a main control module of the current signal acquisition system through AD sampling, calculates and stores a current value and a power value corresponding to the measured value, and uploads the current value and the power value to an online monitoring system through a terminal acquisition system; and when judging that the current value or the power value is higher than a preset threshold value, the main control module controls a communication module of the current signal acquisition system to send alarm information to the terminal acquisition system.
7. The wireless online monitoring method based on the industrial Internet of things as claimed in claim 6, wherein:
when the main control module reaches a preset measurement value acquisition period, controlling the current signal measurement module to acquire a current value and calculating a corresponding power value; and when a preset data sending period is reached, the main control module controls the communication module to send a current value and a power value in the period to the terminal acquisition system.
8. The wireless online monitoring method based on the industrial Internet of things as claimed in claim 6, wherein:
after the current signal acquisition system is powered on, the system is initialized and then enters a HALT low power consumption state, and meanwhile, the system is awakened by waiting for an interrupt trigger state.
9. The wireless online monitoring method based on the industrial internet of things as claimed in claim 8, wherein:
when a maintenance worker presses a key of the current signal acquisition system, triggering the key interruption state, shielding the timing interruption and the Lora awakening interruption, and if the key is not pressed within a preset time threshold, enabling the current signal acquisition system to enter the HALT low-power-consumption state again and waiting for the next interruption and awakening;
the method comprises the steps that a current signal acquisition system is circularly triggered to enter an interrupt triggering state through fixed time in a timing mode, when the timing interrupt state is triggered, the current signal acquisition system firstly controls a current measurement module to measure through a main control module and judges whether a measured value changes or not, if the measured value does not change, the current signal acquisition system returns to a HALT state, and if the measured value changes, the calculated measured value is sent to a terminal acquisition system corresponding to a current value or a current value and a power value through a communication module; in the process, if the current value is within a preset threshold range, the main control module uploads the current value to the terminal acquisition system, and if the current value exceeds the preset threshold, the main control module uploads a power value and alarm state indication information to the terminal acquisition system while uploading the current value;
the Lora awakening interruption is triggered by the on-line monitoring system sending communication information to the current signal acquisition system through the terminal acquisition system, and after the on-line monitoring system triggers, the current signal acquisition system uploads the current value and the power value which are measured currently to the terminal acquisition system and then enters the HALT state again.
10. The wireless online monitoring method based on the industrial Internet of things as claimed in claim 6, wherein: the on-line monitoring system stores, displays and analyzes the received current value and power value; finally, the power consumption state under the normal working state is formed; continuously monitoring the operation of equipment based on the power utilization state in a normal working state, and when monitoring data is abnormal, sending alarm information and signals by an online monitoring system;
the online monitoring system comprises a data acquisition module, a data analysis module and a data storage module; the data acquisition module receives the monitoring data of each current signal acquisition system transmitted from the terminal acquisition system and processes the monitoring data to distinguish the current signal acquisition system corresponding to the monitoring data; the data analysis module analyzes the monitoring data processed by the data acquisition module and checks the current working state of the equipment monitored by the corresponding current signal acquisition system; the data storage module is used for storing relevant data of each current signal acquisition system uploaded by the terminal acquisition system and displaying the working state of the equipment monitored by each current signal acquisition system under the condition that different working currents correspond to each other through data accumulation.
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