System and method for monitoring state in liquid storage tank and medium

Abstract

The invention provides a state monitoring system and method in a liquid storage tank and a medium, the system comprises a plurality of sensing assemblies arranged at different positions in the liquid storage tank, and the sensing assemblies form a data acquisition network so as to package and upload acquired data; the main control assembly receives the data uploaded by the data acquisition network and converts the data into a monitoring data packet; and the remote terminal is used for receiving the monitoring data packet to identify an abnormal state in the liquid storage tank, and interacting with the main control assembly to execute a corresponding abnormity processing strategy when the abnormal state in the liquid storage tank is identified. According to the application, data acquisition is carried out through the wireless ad hoc network, the sensor abnormity can be found in time, the abnormity response speed is improved, and the monitoring effectiveness is guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of monitoring applications, and in particular to a system, method and medium for monitoring the status in a liquid storage tank. Background Art

[0002] At present, in the automatic measurement of liquid level, the liquid level meter will age, get damp and be damaged due to its contact with the liquid in the tank, which may cause inaccurate or completely unreadable liquid level readings. In addition, due to signal transmission failure, the monitoring center cannot obtain accurate liquid level data, which may cause monitoring failure. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present application proposes a status monitoring system, method and medium in a liquid storage tank, which mainly solves the problem that sensors in the liquid storage tank environment are prone to aging and damage, or signal transmission failure feedback is not timely resulting in monitoring failure.

[0004] In order to achieve the above purpose and other purposes, the technical solution adopted by the present invention is as follows.

[0005] The present application provides a state monitoring system in a liquid storage tank, the system comprising: a plurality of sensor components arranged at different positions in the liquid storage tank, each of the sensor components forming a data acquisition network to package and upload the collected data; a main control component, which receives the data uploaded by the data acquisition network and converts it into a monitoring data packet; and a remote terminal, which receives the monitoring data packet to identify an abnormal state in the liquid storage tank, and interacts with the main control component when an abnormal state in the liquid storage tank is identified to execute a corresponding abnormality handling strategy.

[0006] In one embodiment of the present application, each of the sensing components includes a controller, a communication unit, a temperature and humidity sensor, and a liquid level sensor, wherein the temperature and humidity sensor and the liquid level sensor send the collected data to the controller through a serial interface, and the communication unit collects and uploads the data received by the controller.

[0007] In one embodiment of the present application, the data acquisition network also includes a data aggregation node, which is connected to each of the sensor components via wireless communication to aggregate the data uploaded by each of the sensor components and send the data to the main control component.

[0008] In one embodiment of the present application, different sensor components are disposed at positions corresponding to different liquid level heights in the liquid storage tank.

[0009] In one embodiment of the present application, the system further includes a status display module, which is connected to the main control component to display data based on the abnormal status fed back by the remote terminal.

[0010] In one embodiment of the present application, the main control component includes a main controller, a wireless transmission unit, a clock circuit, a reset circuit and an indication circuit, wherein the clock circuit is used to provide a working clock, and the reset circuit is used to provide a reset signal. The main controller receives the data uploaded by the data acquisition network under the action of the working clock and the reset signal, generates a control signal of the indication circuit based on the received data, and uploads the data to the remote terminal through the wireless transmission unit, wherein the indication circuit is used to indicate the current liquid level state, and the current liquid level state corresponds to the liquid level depth collected by the sensor component.

[0011] In one embodiment of the present application, the system further includes an actuator, which responds to the exception handling strategy of the remote terminal, and when the liquid level in the liquid storage tank is lower than a first threshold, draws storage liquid from a spare liquid storage tank to supplement the storage liquid in the current liquid storage tank, so that the liquid level in the current liquid storage tank is maintained at a preset target liquid level; when the liquid level in the liquid storage tank is higher than a second threshold, draws out the storage liquid in the current liquid storage tank, so that the liquid level in the current liquid storage tank is maintained at the preset target liquid level, wherein the first threshold is less than the second threshold.

[0012] In one embodiment of the present application, the system also includes an alarm module. When the remote terminal identifies an abnormal state, the main control component controls the alarm module to output a preset warning message, or the remote terminal communicates with a preset mobile terminal to output the preset warning message.

[0013] The present application also provides a method for utilizing the status monitoring system in the liquid storage tank, the method comprising: providing a plurality of sensor components disposed at different positions in the liquid storage tank, and constructing a data acquisition network based on each of the sensor components; acquiring data uploaded by the data acquisition network and converting the data into a monitoring data packet and uploading the data to a remote terminal, so that the remote terminal identifies an abnormal status in the liquid storage tank based on the monitoring data packet, and executes a corresponding abnormality handling strategy when an abnormal status in the liquid storage tank is identified.

[0014] In one embodiment of the present application, a computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the method of the condition monitoring system in the liquid storage tank are implemented. As described above, the system, method and medium for monitoring the status of a liquid storage tank proposed in the present application have the following beneficial effects.

[0015] This application uses multiple sensor components to form a self-organizing network. When any of the sensor components transmits abnormal signals, timely feedback can be provided through the data acquisition network to quickly locate the fault point. The collected data is sent to the remote terminal for data analysis, and the computing power of the remote terminal can be used to quickly identify the fault state and output the abnormality handling strategy in a timely manner. At the same time, it can also simplify the device structure on one side of the liquid storage tank and reduce the complexity and cost of the design. The remote terminal can convey the data analysis results to the corresponding maintenance personnel so that the relevant personnel can perform fast and effective maintenance based on the analysis results to ensure the safe operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of a status monitoring system in a liquid storage tank in one embodiment of the present application.

[0017] Figure 2 Schematic diagram of the circuit architecture of a status monitoring system in a liquid storage tank in one embodiment of the present application.

[0018] Figure 3 Schematic diagram of a flow chart of a method for monitoring a status of a liquid storage tank in an embodiment of the present application.

[0019] Description of Figure Numbers: 01-remote terminal; 02-main control component; 03-data acquisition network; 04-sensor component. DETAILED DESCRIPTION

[0020] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0021] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0022] See also Figure 1 , Figure 1This is a schematic diagram of the architecture of the status monitoring system in the liquid storage tank in one embodiment of the present application. The system of the embodiment of the present application includes: a plurality of sensor components 04 arranged at different positions in the liquid storage tank, each sensor component 04 forming a data acquisition network 03 to package and upload the collected data; a main control component 02, which receives the data uploaded by the data acquisition network 03 and converts it into a monitoring data packet; and a remote terminal 01, which receives the monitoring data packet to identify the abnormal state in the liquid storage tank, and interacts with the main control component 02 when the abnormal state in the liquid storage tank is identified to execute the corresponding exception handling strategy. The number of specific sensor components 04 can be set and adjusted according to the actual application requirements and is not limited here. Taking three sensor components as an example, different sensor components can be set at positions corresponding to liquid levels of different depths in the liquid storage tank. The first sensor component 04 is set at the position corresponding to the lower limit of the liquid level, and is used to detect whether the liquid level in the liquid storage tank is lower than the lower limit of the liquid level; the second sensor component 04 is set at the position corresponding to the middle liquid level, and is used to detect whether the liquid level in the liquid storage tank reaches the set middle value; the third sensor component 04 is set at the position corresponding to the upper limit of the liquid level, and is used to detect whether the liquid level in the liquid storage tank exceeds the upper limit. The specific position and arrangement of the sensor component 04 can be selected and adjusted according to the actual tank space and application requirements, and there is no restriction here. The sensor components 04 are self-organized through wireless communication. The data acquisition network 03 obtained by the self-organized network can determine the signal transmission status of each sensor component 04. When the signal transmission of any sensor component 04 is abnormal, the data acquisition network 03 can generate a corresponding abnormal signal and upload it to the main control component 02, and then the main control component 02 reports it to the remote terminal 01 to obtain the corresponding abnormal processing strategy. Among them, the abnormal signal can contain information such as the position or code of the sensor component 04, so that the maintenance personnel can quickly locate the abnormal sensor component 04. A database can be set up in the remote terminal 01, and the mapping relationship between different abnormal types and abnormal handling strategies is stored in the database. After the remote terminal 01 receives the uploaded data, it determines the abnormal type by identifying the abnormal state in the data, and then calls the corresponding abnormal handling strategy from the database. The specific abnormal handling strategy can be set in advance, or it can be updated and adjusted according to needs, and there is no restriction here. Exemplarily, the abnormal handling strategy can be an emergency treatment method for different liquid levels in the liquid storage tank, or it can be a maintenance method for the sensor component 04 with abnormal communication. When the liquid level in the liquid storage tank exceeds a certain threshold, the excess part can be drawn out of the tank body to keep the liquid level in the tank balanced. The remote terminal 01 can be connected to a mobile terminal such as a maintenance personnel's mobile phone, and the fault status and abnormal related information are sent to the corresponding mobile terminal. After the maintenance personnel receive the notification information, they can perform equipment maintenance according to the associated data in the notification information. The remote terminal 01 here can be a server or a cloud platform, which can be set according to actual needs, and there is no restriction here.A communication connection can be established between the main control component 02 and the remote terminal 01 via a wireless network to facilitate data transmission.

[0023] It is worth noting that the present application can be applied to internal measurement and control of industrial liquid storage tanks, electrolytic cells or other liquid storage containers.

[0024] In one embodiment, the database of the remote terminal 01 may also store historical data information of the liquid storage tank, predict the liquid level change trend according to the historical liquid level distribution or temperature and humidity distribution in the liquid storage tank, and then output the corresponding control instructions according to the liquid level change trend, so that the main control module responds to the corresponding control instructions to adjust the liquid level in the liquid storage tank. For example, according to the historical liquid level change rate of the liquid storage tank, it can be predicted that the liquid level in the liquid storage tank will exceed the lower limit of the liquid level in the future, and the storage liquid needs to be replenished. The control instruction can be sent to the main control component 02, and the main control component 02 controls the pump to extract a certain amount of storage liquid from other liquid storage tanks for replenishment. Of course, the remote terminal 01 can analyze the liquid level data of multiple liquid storage tanks at the same time, and select the liquid storage tank that meets the conditions as the standby liquid storage tank. When there is a liquid storage tank that needs to be replenished, the standby liquid storage tank is connected. The specific condition that can be used as a standby liquid storage tank can be that the liquid level reaches the preset liquid level, which can also be adjusted according to the actual application requirements. The replenishment method of the storage liquid is not limited to the mutual replenishment between liquid storage tanks, and can also be supplied separately by external equipment, which is not limited here.

[0025] In one embodiment, the remote terminal 01 may also be provided with an interactive interface, and the relevant exception handling strategy or the data collection frequency of the sensor component 04 may be configured through the interactive interface.

[0026] In one embodiment, a status display module may also be provided at a corresponding position of the liquid storage tank, and the status display module may be connected to the main control component 02. After the main control component 02 establishes a wireless communication connection with the remote terminal 01, it receives the abnormal status fed back by the remote terminal 01, and then displays the abnormal status in the status display module, so that the on-site personnel can locate and maintain the abnormality according to the displayed information. The status display module here may be a touch screen or other display device, which may be configured and selected according to actual needs, and is not limited here. In one embodiment, the status display module may also be used as an interactive device on one side of the liquid storage tank, and relevant personnel may also perform network settings, parameter configuration of the sensor component 04, and other operations through the status display module.

[0027] In one embodiment, each sensor assembly 04 includes a controller, a communication unit, a temperature and humidity sensor, and a liquid level sensor, wherein the temperature and humidity sensor and the liquid level sensor send the collected data to the controller via a serial interface, and the communication unit collects and uploads the data received by the controller. Figure 2 , Figure 2 The circuit architecture diagram of the state monitoring system in the liquid storage tank in one embodiment of the present application. The communication unit serves as the data collection point of the corresponding sensor component 04, and transmits data through the wireless antenna. The communication unit and the controller transmit data through the serial interface, and the controller and the temperature and humidity sensor and the liquid level sensor also transmit data through the serial interface. The liquid level sensor can adopt a non-contact liquid level sensor. The serial interface can adopt the UART communication protocol for data transmission.

[0028] In one embodiment, multiple sensor components 04 can form a self-organizing network through ZigBee. Taking three sensor components 04 as an example, the communication units of the three sensor components 04 are used as ZigBee acquisition nodes, and a ZigBee aggregation node is set to wirelessly communicate with the communication units of the three sensor components 04. The ZigBee aggregation node is the data aggregation node of the data acquisition network 03. When the communication connection between the data aggregation node and any of the sensor components 04 is abnormal, a corresponding abnormal signal can be generated and reported to the main control component 02. When the communication status of each sensor component 04 is normal, the data aggregation node can package the data collected by the three sensor components 04 and upload it to the main control component 02. Please refer to Figure 2 , ZigBee aggregation node and ZigBee acquisition node can use CC2530 chip to realize ad hoc network. Of course, the ad hoc network of this application is not limited to ZigBee, and other wireless communication methods can also be used for ad hoc network, which is not limited here. The controller of each sensor component 04 can also be implemented by STC89C52 chip, which is only an example here, and a single-chip microcomputer or other control chip can also be used according to needs. The temperature and humidity sensor can use DHT11, and the liquid level sensors in the three sensor components 04 are used to detect the internal status of the low water level, medium water level and high water level in the tank respectively. Figure 2 The components in the figure can be replaced by other similar components, or adjusted according to actual application requirements, which is not limited here. Data can also be transmitted between the data aggregation node and the main control component 02 through a serial interface.

[0029] In one embodiment, the main control component 02 includes a main controller, a wireless transmission unit, a clock circuit, a reset circuit and an indication circuit. The clock circuit is used to provide a working clock, and the reset circuit is used to provide a reset signal. The main controller receives the data uploaded by the data acquisition network 03 under the action of the working clock and the reset signal, generates a control signal of the indication circuit based on the received data, and uploads the data to the remote terminal 01 through the wireless transmission unit, wherein the indication circuit is used to indicate the current liquid level state, and the current liquid level state corresponds to the liquid level depth collected by the sensor component 04. After the circuit is powered on, the reset circuit generates a reset signal to reset and power on the main controller, and the clock circuit provides a clock signal for the main controller to work. After the main controller receives the sensor data uploaded by the data acquisition network 03, it can determine the current liquid level value in the liquid storage tank, and then control the corresponding indicator in the indication circuit to display. Exemplarily, the indication circuit contains three indicator lights of red, yellow and green. The red light indicates that the liquid level reaches the high water level, the green light indicates that the liquid level reaches the low water level, and the yellow light indicates that the liquid level reaches the middle water level. Specifically, the corresponding relationship between the indicator light and the water level can be set and adjusted according to actual application requirements, and is not limited here.

[0030] In one embodiment, the clock circuit can generate a clock signal of a set frequency by a crystal oscillator, and the reset circuit can also be composed of a resistor-capacitor circuit and a switch. The specific circuit structure can be set and adjusted according to actual application requirements, and is not limited here. The wireless transmission unit of the main control component 02 can be implemented using a SIM900 chip, and a connection is established with the remote terminal 01 through a GPRS wireless communication method. Of course, the communication connection method between the main control component 02 and the remote terminal 01 is not limited to GPRS, and can also be selected and adjusted according to actual application requirements, and is not limited here.

[0031] In one embodiment, the system may also be provided with an actuator, which is connected to the main control component 02. The actuator responds to the exception handling strategy of the remote terminal 01. When the liquid level in the liquid storage tank is lower than the first threshold, the storage liquid is extracted from the standby liquid storage tank to supplement the storage liquid in the current liquid storage tank, so that the liquid level in the current liquid storage tank is maintained at a preset target level; when the liquid level in the tank is higher than the second threshold, the storage liquid in the current liquid storage tank is extracted, so that the liquid level in the current liquid storage tank is maintained at a preset target level, wherein the first threshold is less than the second threshold. The first threshold and the second threshold here can be taken according to actual application requirements, and the preset target liquid level is taken between the first threshold and the second threshold, and can also be flexibly set and adjusted according to requirements. For example, the first threshold can be the lower limit of the liquid level in the tank, and the second threshold can be the upper limit of the liquid level in the tank. The actuator can be a pump or other device that can be used to adjust the liquid level in the tank, which is not limited here.

[0032] In one embodiment, an alarm module may also be provided on one side of the liquid storage tank, and the alarm module is connected to the main control component 02. When the main control component 02 receives the abnormal state feedback from the remote terminal 01, the alarm module is activated, and an alarm may be given by flashing an indicator light or outputting a corresponding voice. The voice may be obtained by matching the abnormal state in the database of the remote terminal 01. Of course, the remote terminal 01 may also directly send an alarm message to a mobile terminal such as a mobile phone to remind remote personnel to handle the abnormality.

[0033] Based on the technical solution of the above embodiment of the present application, through the self-organizing network of the sensor component 04 in the tank, the data transmission anomaly of the sensor component 04 can be discovered in time, and then timely feedback can be sent to the cloud to obtain the corresponding anomaly handling strategy to ensure the effectiveness and timeliness of anomaly detection; while detecting the temperature and humidity in the tank, the safety in the tank can be guaranteed, and the potential safety hazards caused by excessive temperature and humidity in the tank can be avoided. The use of a non-contact liquid level sensor can avoid the interference of the liquid in the tank on the collected data, and the self-organizing network and data transmission through wireless communication technology can avoid the interference of communication hardware on the collected data; a visual interface is provided for data display and interaction, which is convenient for monitoring personnel to understand the status of the liquid storage tank in real time and set and adjust parameters according to authority, which can facilitate rapid positioning of anomalies for precise maintenance, and at the same time, abnormality handling is performed based on the cloud-based processing strategy, which reduces the professional requirements for maintenance personnel and enhances the user experience.

[0034] See also Figure 3 , Figure 3 This is a flow chart of a method for monitoring the status of a liquid storage tank in an embodiment of the present application. The method includes the following steps: Step S300, providing a plurality of sensor components disposed at different positions in the liquid storage tank, and constructing a data acquisition network based on the sensor components; Step S310, acquiring the data uploaded by the data acquisition network and converting it into a monitoring data packet and uploading it to the remote terminal, so that the remote terminal identifies the abnormal state in the liquid storage tank based on the monitoring data packet, and executes the corresponding abnormality handling strategy when the abnormal state in the liquid storage tank is identified.

[0035] The execution process of the specific method has been described in detail in the aforementioned system embodiment and will not be repeated here.

[0036] The present application also provides a computer-readable storage medium, in which one or more modules (programs) are stored. When the one or more modules are applied to a device, the device can execute the embodiment of the present application. Figure 3The method for monitoring the status of a liquid storage tank in a liquid storage tank includes the steps of the method. The machine-readable medium can be any available medium that can be stored by a computer or a data storage device such as a server or a data center that includes one or more available media. The available medium can be a magnetic medium (such as a floppy disk, a hard disk, a tape), an optical medium (such as a DVD), or a semiconductor medium (such as a solid state disk (SSD)).

[0037] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical ideas disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A state monitoring system in a liquid storage tank, characterized in that: The system comprises: A plurality of sensor components are arranged at different positions in the liquid storage tank, each of which forms a data acquisition network to package and upload the collected data; A main control component receives the data uploaded by the data acquisition network and converts it into a monitoring data packet; and The remote terminal receives the monitoring data packet to identify an abnormal state in the liquid storage tank, and interacts with the main control component to execute a corresponding abnormality handling strategy when an abnormal state in the liquid storage tank is identified.

2. The state monitoring system in a liquid storage tank according to claim 1, characterized in that: Each of the sensing components includes a controller, a communication unit, a temperature and humidity sensor, and a liquid level sensor, wherein the temperature and humidity sensor and the liquid level sensor send the collected data to the controller via a serial interface, and the communication unit collects and uploads the data received by the controller.

3. The state monitoring system in a liquid storage tank according to claim 1, characterized in that: The data acquisition network also includes a data aggregation node, which is connected to each of the sensor components through wireless communication to aggregate the data uploaded by each of the sensor components and send the data to the main control component.

4. The state monitoring system in a liquid storage tank according to claim 1, characterized in that: Different sensor components are arranged at positions corresponding to different liquid level heights in the liquid storage tank.

5. The state monitoring system in a liquid storage tank according to claim 1, characterized in that: The system also includes a status display module, which is connected to the main control component to display data based on the abnormal status fed back by the remote terminal.

6. The state monitoring system in a liquid storage tank according to claim 1, characterized in that: The main control component includes a main controller, a wireless transmission unit, a clock circuit, a reset circuit and an indication circuit. The clock circuit is used to provide a working clock, and the reset circuit is used to provide a reset signal. The main controller receives the data uploaded by the data acquisition network under the action of the working clock and the reset signal, generates a control signal of the indication circuit based on the received data, and uploads the data to the remote terminal through the wireless transmission unit, wherein the indication circuit is used to indicate the current liquid level state, and the current liquid level state corresponds to the liquid level depth collected by the sensor component.

7. The state monitoring system in a liquid storage tank according to claim 1, characterized in that: The system also includes an actuator, which responds to the exception handling strategy of the remote terminal. When the liquid level in the liquid storage tank is lower than a first threshold, the actuator extracts storage liquid from the spare liquid storage tank to supplement the storage liquid in the current liquid storage tank, so that the liquid level in the current liquid storage tank is maintained at a preset target liquid level; when the liquid level in the liquid storage tank is higher than a second threshold, the actuator extracts the storage liquid in the current liquid storage tank, so that the liquid level in the current liquid storage tank is maintained at the preset target liquid level, wherein the first threshold is less than the second threshold.

8. The system for monitoring the status of a liquid storage tank according to claim 7, characterized in that: The system also includes an alarm module. When the remote terminal identifies an abnormal state, the main control component controls the alarm module to output a preset alarm message, or the remote terminal communicates with a preset mobile terminal to output the preset alarm message.

9. A method for using the state monitoring system in a liquid storage tank according to any one of claims 1 to 8, characterized in that: The method comprises: Providing a plurality of sensor components disposed at different positions in the liquid storage tank, and constructing a data acquisition network based on each of the sensor components; The data uploaded by the data acquisition network is obtained and converted into a monitoring data packet and then uploaded to a remote terminal, so that the remote terminal identifies the abnormal state in the liquid storage tank based on the monitoring data packet, and executes a corresponding abnormality handling strategy when the abnormal state in the liquid storage tank is identified.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the method of the system for monitoring the condition in a liquid storage tank according to claim 9 are implemented.

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