Wine jar leakage monitoring system and method

Abstract

The invention discloses a wine jar leakage monitoring system and method, and belongs to the field of wine jar leakage intelligent monitoring, and the system comprises a terminal monitoring assembly installed on a wine jar cover, a positioning monitoring assembly installed at the top of a wine cellar, an edge processor and a monitoring center. The method comprises the following steps: collecting alcohol concentration data in the air of a wine cellar in real time, and judging whether leakage occurs in surrounding wine jars or not; the ultrasonic liquid level sensor collects continuous liquid level data of wine in the wine jars, the liquid level drop rate is calculated, and the wine jars with leakage are screened out; the positioning coordinates of the wine jars with leakage are calculated by using the time difference of the uplink UWB positioning signals reaching each UWB base station module, and error correction is carried out; and the monitoring center obtains the position of the leaked wine jar in the wine cellar according to the positioning coordinates. According to the scheme, the defect of inaccurate positioning in a complex cellaring environment is overcome, and the response time of wine jar leakage judgment and positioning is effectively shortened.

Description

Technical Field

[0001] This invention relates to the field of intelligent monitoring of wine jar leaks, specifically to a wine jar leak monitoring system and method. Background Technology

[0002] Baijiu, a type of liquor produced using a unique process in my country, typically requires aging in caves or cellars during its brewing. This prolonged aging process transforms harmful substances, fusel oils, and aldehydes in the raw baijiu into unique aromatic hydrocarbons, enhancing its flavor. The use of earthenware jars for aging is crucial. The airtightness and integrity of these jars are essential for preserving the baijiu's quality. However, baijiu is volatile; if the earthenware jars are poorly sealed or damaged, the evaporation into the cellar will accelerate, leading to a high concentration of alcohol in the cellar. Therefore, effectively monitoring for leaks in the jars and promptly detecting any leaks is critical to the baijiu aging process, thereby minimizing losses.

[0003] Existing technologies for leak monitoring of a large number of wine jars in a wine cellar have the following main drawbacks: 1. Manual inspections rely on experience and judgment, resulting in limited coverage of a single inspection, inability to capture instantaneous leakage signals, and difficulty in detecting hidden leakage points, leading to low inspection efficiency and high labor costs.

[0004] 2. Monitoring using a single physical quantity (such as liquid level) is easily affected by environmental temperature and humidity, resulting in a high false alarm rate in cellar environments. It cannot handle dynamic changes in the position of the wine jars; once the position of the jar changes, the accurate location information within the cellar cannot be obtained. In complex cellar environments, it is susceptible to multipath effects, leading to unstable positioning accuracy. Summary of the Invention

[0005] To address the aforementioned shortcomings in the existing technology, this invention provides a wine jar leakage monitoring system and method, which achieves high-precision wine jar leakage detection while accurately locating the wine jar's position.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this invention is as follows: A wine jar leakage monitoring system is provided, comprising: Terminal monitoring components installed on the wine jar lids, positioning monitoring components installed on the top of the wine cellar, edge processors, and monitoring centers; The terminal monitoring components include a UWB tag module, an ultrasonic liquid level sensor, a signal acquisition module, and a wireless module; the ultrasonic liquid level sensor is used to collect the liquid level data of the wine in the wine jar and send it to the signal acquisition module; The positioning and monitoring components are evenly installed on the top of the wine cellar. The positioning and monitoring components include a UWB base station module and an alcohol concentration sensor; the alcohol concentration sensor collects data on the alcohol concentration in the air inside the wine cellar. The edge processor connects to the positioning and monitoring components distributed throughout the wine cellar. It uses alcohol concentration data to analyze the areas where leaks occur in the wine cellar, and uses UWB tag modules and UWB base station modules to locate the wine jars in the areas where leaks occur. It then combines the liquid level data to filter out the wine jars that have leaked. The edge processor communicates with the monitoring center via a wireless networking module and transmits the leaked wine jar location information to the monitoring center.

[0007] Furthermore, the terminal monitoring component also includes a battery module, which provides power to the terminal monitoring component.

[0008] A method for monitoring wine jar leaks using the aforementioned wine jar leak monitoring system is provided, comprising: Step S1: The alcohol concentration sensor collects real-time alcohol concentration data in the cellar air, calculates the average real-time alcohol concentration data in the cellar, and determines whether there is a leak in the surrounding wine jars based on the fluctuation deviation of alcohol concentration data at different locations and the continuous alcohol concentration sensor. Step S2: Use the UWB base station module on the positioning and monitoring component to filter the nearest UWB tag module, and calculate the liquid level drop rate based on the liquid level data of the wine in the wine jar continuously collected by the ultrasonic liquid level sensor corresponding to the nearest UWB tag module, and filter out the wine jars that have leaked. Step S3: The edge processor obtains the uplink UWB positioning signal sent by the corresponding UWB tag module on the leaked wine jar to each UWB base station module. Using the time difference of the uplink UWB positioning signal arriving at each UWB base station module, the positioning coordinates of the leaked wine jar are calculated, and the positioning coordinates are corrected for errors based on the dynamic allocation of UWB base station modules. Step S4: The edge processor sends the location coordinates of the leaking wine jar after error correction to the monitoring center. The monitoring center obtains the location of the leaking wine jar in the wine cellar based on the location coordinates.

[0009] Further, step S1 includes: Step S11: The alcohol concentration sensor collects real-time data on the alcohol concentration in the wine cellar air. , t The time of alcohol concentration data collection is determined based on the number of positioning monitoring components installed on the top of the wine cellar. N Calculate the average value of real-time alcohol concentration data. ; ; in,n The identifier is the number of the monitoring component. Step S12: Calculate alcohol concentration data Compared with the average The difference between Define fluctuation threshold ,like If the result is positive, proceed to step S13; otherwise, return to step S11 and continue collecting data on the alcohol concentration in the cellar air. Step S13: Obtain the acquisition time t Previous continuous alcohol concentration data , For the time of data collection t The number of consecutive alcohol concentration data points previously available. The time interval for collecting alcohol concentration data. For the consecutive first k Individual alcohol concentration data; Step S14: Calculate the difference between consecutive alcohol concentration data. , If it exists Then determine the location monitoring component n If a leak occurs in the surrounding wine jars, proceed to step S21; otherwise, collect the alcohol concentration data. If random error fluctuations occur, return to step S11 and continue collecting alcohol concentration data in the cellar air.

[0010] Further, step S2 includes: Step S21: Locate the monitoring component n The UWB base station module sends a location request command to the surrounding UWB tag modules. After receiving the location request command, the UWB tag module immediately sends an uplink UWB location signal to the surrounding UWB base station modules. Step S22: Locate the monitoring component n The UWB base station module uses the UWB tag module corresponding to the first received uplink UWB positioning signal as the nearest UWB tag module. m , indicating UWB tag module m The corresponding terminal monitoring component and the distance positioning monitoring component n recent; Step S23: The nearest terminal monitoring component will detect the ultrasonic liquid level sensor at the time of data acquisition. t Previously collected data on the liquid level in the wine jar The data is sent to the edge processor to calculate the rate of drop of the continuously collected liquid level data. ; in, For ultrasonic level sensor at the time of acquisition Collected liquid level data, For ultrasonic liquid level sensor at time Collected liquid level data, i For the time of data collection t Previous liquid level data number, For ultrasonic level sensor at the time of acquisition Collected liquid level data, For ultrasonic level sensor at the time of acquisition Collected liquid level data; Step S24: Set the threshold for the rate of drop in liquid level data. ;like Then determine the UWB tag module. m If the wine jar is leaking, proceed to step S31; otherwise, proceed to step S25. Step S25: Repeat steps S22-S24, based on the UWB tag module and the positioning monitoring component. n The distance between them is used to determine the location monitoring components in order from closest to farthest. n Check if any of the surrounding wine jars are leaking, and then identify the leaking jars in sequence, proceeding to step S31.

[0011] Further, step S3 includes: Step S31: Define the coordinates of the UWB base station module within the wine cellar. UWB tag module m Coordinates within the wine cellar UWB tag module m The distance to the UWB base station module is ; ; Step S32: Based on the UWB tag module m The uplink UWB positioning signal is sent to any three UWB base station modules inside the wine cellar. time Construct a system of distance equations relating to the time difference; ; in, For UWB tag module m The time for sending the uplink UWB positioning signal. C For uplink UWB positioning signal transmission speed; Step S33: Combine the three UWB base station modules Using the coordinates within the cellar, the distance equations relating time difference are expanded to calculate the UWB tag module. m Positioning coordinates within the wine cellar That is, to obtain the location coordinates of the wine jar where the leak occurred; ; in, There are three UWB base station modules. Coordinates within the wine cellar; Step S34: Based on the number of UWB base station modules in the wine cellar N The UWB base station module in the wine cellar was dynamically split into... There are three different UWB base station module groups, and each UWB base station module group contains three different UWB base station modules. , Indicates rounding down to the nearest integer; Step S35: From Selected from UWB base station module groups W A group of UWB base station modules is used to locate the leaked wine jars, and the screening process satisfies the objective function. ; in, For the selected W A UWB base station module group is a collection of UWB base station modules. w UWB base station module set The UWB base station module number in the middle, for A UWB base station module group is a collection of UWB base station modules. UWB base station module w The time to receive the uplink UWB positioning signal; Step S36: Utilize W Based on the coordinates of the UWB base station modules within the wine cellar and the time they received the uplink UWB positioning signal, steps S31-S33 are executed to calculate... W The location coordinates of the leaking wine jar; Step S37: According to W The location coordinates of the leaking wine jar were calculated using the positioning coordinates, after error correction. ; ; in, This is the number of the UWB base station module group. For the first The positioning coordinates calculated by each UWB base station module group.

[0012] The beneficial effects of this invention are as follows: This solution combines environmental alcohol concentration data and liquid level data within the wine jars to comprehensively determine whether a leak has occurred in the wine cellar, effectively filtering out false alarms and misjudgments, and improving the accuracy of leak detection. Furthermore, it utilizes UWB positioning technology for precise location of the wine jars, adapting to dynamic changes in their position during aging, and optimizes their positioning coordinates based on proximity, avoiding the impact of long-distance signal transmission on positioning accuracy, thus solving the problem of inaccurate positioning in complex aging environments. Simultaneously, the introduction of edge computing effectively improves the response time for leak detection and location, saves network resources for building a monitoring system, and reduces the impact of signal interaction and transmission between different wine cellars. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of a wine jar leakage monitoring system.

[0014] Figure 2 A flowchart of a method for monitoring leaks in wine jars. Detailed Implementation

[0015] The specific embodiments of the present invention are described below to enable those skilled in the art to understand the present invention. However, it should be understood that the present invention is not limited to the scope of the specific embodiments. For those skilled in the art, various changes are obvious as long as they are within the spirit and scope of the present invention as defined and determined by the appended claims. All inventions utilizing the concept of the present invention are protected.

[0016] like Figure 1 As shown, a wine jar leakage monitoring system includes: Terminal monitoring components installed on the wine jar lids, positioning monitoring components installed on the top of the wine cellar, edge processors, and monitoring centers; The terminal monitoring components include a UWB tag module, an ultrasonic liquid level sensor, a signal acquisition module, and a wireless module; the ultrasonic liquid level sensor is used to collect the liquid level data of the wine in the wine jar and send it to the signal acquisition module; The positioning and monitoring components are evenly installed on the top of the wine cellar. The positioning and monitoring components include a UWB base station module and an alcohol concentration sensor; the alcohol concentration sensor collects data on the alcohol concentration in the air inside the wine cellar. The edge processor connects to the positioning and monitoring components distributed throughout the wine cellar. It uses alcohol concentration data to analyze the areas where leaks occur in the wine cellar, and uses UWB tag modules and UWB base station modules to locate the wine jars in the areas where leaks occur. It then combines the liquid level data to filter out the wine jars that have leaked. The edge processor communicates with the monitoring center via a wireless networking module and transmits the leaked wine jar location information to the monitoring center.

[0017] In this embodiment, the terminal monitoring component further includes a battery module, which is used to provide power to the terminal monitoring component.

[0018] A method for monitoring wine jar leaks using the aforementioned wine jar leak monitoring system includes: Step S1: The alcohol concentration sensor collects real-time alcohol concentration data in the cellar air, calculates the average real-time alcohol concentration data in the cellar, and determines whether there is a leak in the surrounding wine jars based on the fluctuation deviation of alcohol concentration data at different locations and the continuous alcohol concentration sensor.

[0019] Step S1 specifically includes the following steps: Step S11: The alcohol concentration sensor collects real-time data on the alcohol concentration in the wine cellar air. , t The time of alcohol concentration data collection is determined based on the number of positioning monitoring components installed on the top of the wine cellar. N Calculate the average value of real-time alcohol concentration data. ; ; in, n The identifier is the number of the monitoring component. Step S12: Calculate alcohol concentration data Compared with the average The difference between Define fluctuation threshold ,like If the result is positive, proceed to step S13; otherwise, return to step S11 and continue collecting data on the alcohol concentration in the cellar air. Step S13: Obtain the acquisition time t Previous continuous alcohol concentration data , For the time of data collection t The number of consecutive alcohol concentration data points previously available. The time interval for collecting alcohol concentration data. For the consecutive first k Individual alcohol concentration data; Step S14: Calculate the difference between consecutive alcohol concentration data. , If it exists Then determine the location monitoring component n If a leak occurs in the surrounding wine jars, proceed to step S21; otherwise, collect the alcohol concentration data. If random error fluctuations occur, return to step S11 and continue collecting alcohol concentration data in the cellar air.

[0020] Step S2: Use the UWB base station module on the positioning and monitoring component to filter the nearest UWB tag module, and calculate the liquid level drop rate based on the liquid level data of the wine in the wine jar continuously collected by the ultrasonic liquid level sensor corresponding to the nearest UWB tag module, and filter out the wine jars that have leaked.

[0021] Step S2 specifically includes the following steps: Step S21: Locate the monitoring component n The UWB base station module sends a location request command to the surrounding UWB tag modules. After receiving the location request command, the UWB tag module immediately sends an uplink UWB location signal to the surrounding UWB base station modules. Step S22: Locate the monitoring component n The UWB base station module uses the UWB tag module corresponding to the first received uplink UWB positioning signal as the nearest UWB tag module. m , indicating UWB tag module m The corresponding terminal monitoring component and the distance positioning monitoring component n recent; Step S23: The nearest terminal monitoring component will detect the ultrasonic liquid level sensor at the time of data acquisition. t Previously collected data on the liquid level in the wine jar The data is sent to the edge processor to calculate the rate of drop of the continuously collected liquid level data. ; in, For ultrasonic level sensor at the time of acquisition Collected liquid level data, For ultrasonic liquid level sensor at time Collected liquid level data, i For the time of data collection t Previous liquid level data number, For ultrasonic level sensor at the time of acquisition Collected liquid level data, For ultrasonic level sensor at the time of acquisition Collected liquid level data; Step S24: Set the threshold for the rate of drop in liquid level data. ;like Then determine the UWB tag module. m If the wine jar is leaking, proceed to step S31; otherwise, proceed to step S25. This invention sets a reasonable threshold based on the sensitivity of wine jar leakage detection. In a well-sealed wine jar, the rate of drop in liquid level is almost negligible within a short period of time; at this point, the threshold... It can be set to 0.

[0022] Step S25: Repeat steps S22-S24, based on the UWB tag module and the positioning monitoring component. n The distance between them is used to determine the location monitoring components in order from closest to farthest. n Check if any of the surrounding wine jars are leaking, and then identify the leaking jars in sequence, proceeding to step S31.

[0023] This invention is based on a positioning monitoring component n The system prioritizes determining whether the nearest wine jar has leaked. Although the evaporation and spread of leaked wine are random, theoretically, the nearest location monitoring component should always be the primary detection point. n The first signal to detect a suspected leak is the edge processor. This filtering rule, which selects the nearest and furthest points, can effectively reduce the amount of data processed by the edge processor and improve the efficiency and timeliness of leak detection.

[0024] Step S3: The edge processor obtains the uplink UWB positioning signal sent by the corresponding UWB tag module on the leaked wine jar to each UWB base station module. Using the time difference of the uplink UWB positioning signal arriving at each UWB base station module, the positioning coordinates of the leaked wine jar are calculated, and the positioning coordinates are corrected for errors based on the dynamic allocation of UWB base station modules.

[0025] Step S3 specifically includes the following steps: Step S31: Define the coordinates of the UWB base station module within the wine cellar. UWB tag module m Coordinates within the wine cellar UWB tag module m The distance to the UWB base station module is ; ; This embodiment constructs a three-dimensional coordinate system within the wine cellar to locate the wine jars. The three-dimensional coordinates marked by this system can adapt well to the irregular, three-dimensional terrain of the wine cellar, achieving precise positioning of the wine jars. The three-dimensional coordinate system has the center of the wine cellar as its origin, the horizontal plane as the xoy plane, and the z-axis perpendicular to the horizontal plane.

[0026] Step S32: Based on the UWB tag module m The uplink UWB positioning signal is sent to any three UWB base station modules inside the wine cellar. time Construct a system of distance equations relating to the time difference; ; in, For UWB tag module m The time for sending the uplink UWB positioning signal. CFor uplink UWB positioning signal transmission speed; Step S33: Combine the three UWB base station modules Using the coordinates within the cellar, the distance equations relating time difference are expanded to calculate the UWB tag module. m Positioning coordinates within the wine cellar That is, to obtain the location coordinates of the wine jar where the leak occurred; ; in, There are three UWB base station modules. Coordinates within the wine cellar; Step S34: Based on the number of UWB base station modules in the wine cellar N The UWB base station module in the wine cellar was dynamically split into... There are three different UWB base station module groups, and each UWB base station module group contains three different UWB base station modules. , Indicates rounding down to the nearest integer; Step S35: From Selected from UWB base station module groups W A group of UWB base station modules is used to locate the leaked wine jars, and the screening process satisfies the objective function. ; in, For the selected W A UWB base station module group is a collection of UWB base station modules. w UWB base station module set The UWB base station module number in the middle, for A UWB base station module group is a collection of UWB base station modules. UWB base station module w The time to receive the uplink UWB positioning signal; Step S36: Utilize W Based on the coordinates of the UWB base station modules within the wine cellar and the time they received the uplink UWB positioning signal, steps S31-S33 are executed to calculate... W The location coordinates of the leaking wine jar; Step S37: According to W The location coordinates of the leaking wine jar were calculated using the positioning coordinates, after error correction. ; ; in, This is the number of the UWB base station module group. For the first The positioning coordinates calculated by each UWB base station module group.

[0027] This invention constructs an objective function to dynamically filter multiple UWB base station module groups for calculating positioning coordinates. By using multiple UWB base station module groups, the error caused by the calculation of positioning coordinates by a single UWB base station module group is corrected. Furthermore, based on the principle of proximity, different UWB base station module groups are reasonably divided to reduce the impact of uplink UWB positioning signal clock errors caused by long-distance signal transmission on positioning coordinate calculation.

[0028] Step S4: The edge processor sends the location coordinates of the leaking wine jar after error correction to the monitoring center. The monitoring center obtains the location of the leaking wine jar in the wine cellar based on the location coordinates.

[0029] This invention utilizes UWB positioning technology to achieve precise positioning of wine jars even when their locations are dynamically changing. During storage in a wine cellar, the positions of the wine jars dynamically change according to their number to ensure even distribution. Therefore, regardless of the dynamic changes in the jar positions, the UWB base station modules distributed throughout the cellar can achieve precise positioning of the wine jars.

Claims

1. A wine jar leakage monitoring system, characterized in that, include: Terminal monitoring components installed on the wine jar lids, positioning monitoring components installed on the top of the wine cellar, edge processors, and monitoring centers; The terminal monitoring component includes a UWB tag module, an ultrasonic liquid level sensor, a signal acquisition module, and a wireless module; the ultrasonic liquid level sensor is used to collect the liquid level data of the wine in the wine jar and send it to the signal acquisition module. The positioning and monitoring components are evenly installed on the top of the wine cellar. The positioning and monitoring components include a UWB base station module and an alcohol concentration sensor; the alcohol concentration sensor collects data on the alcohol concentration in the air inside the wine cellar. The edge processor is connected to the positioning and monitoring components distributed in the wine cellar. It uses alcohol concentration data to analyze the area where a leak has occurred in the wine cellar, and uses UWB tag modules and UWB base station modules to locate the wine jars in the area where the leak has occurred. It also uses liquid level data to filter out the wine jars that have leaked. The edge processor communicates with the monitoring center via a wireless networking module and transmits the leaked wine jar location information to the monitoring center.

2. The wine jar leakage monitoring system according to claim 1, characterized in that, The terminal monitoring component also includes a battery module, which provides power to the terminal monitoring component.

3. A method for monitoring wine jar leakage using the wine jar leakage monitoring system according to claim 1 or 2, characterized in that, include: Step S1: The alcohol concentration sensor collects real-time alcohol concentration data in the cellar air, calculates the average real-time alcohol concentration data in the cellar, and determines whether there is a leak in the surrounding wine jars based on the fluctuation deviation of alcohol concentration data at different locations and the continuous alcohol concentration sensor. Step S2: Use the UWB base station module on the positioning and monitoring component to filter the nearest UWB tag module, and calculate the liquid level drop rate based on the liquid level data of the wine in the wine jar continuously collected by the ultrasonic liquid level sensor corresponding to the nearest UWB tag module, and filter out the wine jars that have leaked. Step S3: The edge processor obtains the uplink UWB positioning signal sent by the corresponding UWB tag module on the leaked wine jar to each UWB base station module. Using the time difference of the uplink UWB positioning signal arriving at each UWB base station module, the positioning coordinates of the leaked wine jar are calculated, and the positioning coordinates are corrected for errors based on the dynamic allocation of UWB base station modules. Step S4: The edge processor sends the location coordinates of the leaking wine jar after error correction to the monitoring center. The monitoring center obtains the location of the leaking wine jar in the wine cellar based on the location coordinates.

4. The method for monitoring leakage in wine jars according to claim 3, characterized in that, Step S1 includes: Step S11: The alcohol concentration sensor collects real-time data on the alcohol concentration in the wine cellar air. , t The time of alcohol concentration data collection is determined based on the number of positioning monitoring components installed on the top of the wine cellar. N Calculate the average value of real-time alcohol concentration data. ; ； in, n The identifier is the number of the monitoring component. Step S12: Calculate alcohol concentration data Compared with the average The difference between Define fluctuation threshold ,like If the result is positive, proceed to step S13; otherwise, return to step S11 and continue collecting data on the alcohol concentration in the cellar air. Step S13: Obtain the acquisition time t Previous continuous alcohol concentration data , For the time of data collection t The number of consecutive alcohol concentration data points previously available. The time interval for collecting alcohol concentration data. For the consecutive first k Individual alcohol concentration data; Step S14: Calculate the difference between consecutive alcohol concentration data. , If it exists Then determine the location monitoring component n If a leak occurs in the surrounding wine jars, proceed to step S21; otherwise, collect the alcohol concentration data. If random error fluctuations occur, return to step S11 and continue collecting alcohol concentration data in the cellar air.

5. The method for monitoring leakage in wine jars according to claim 4, characterized in that, Step S2 includes: Step S21: Locate the monitoring component n The UWB base station module sends a location request command to the surrounding UWB tag modules. After receiving the location request command, the UWB tag module immediately sends an uplink UWB location signal to the surrounding UWB base station modules. Step S22: Locate the monitoring component n The UWB base station module uses the UWB tag module corresponding to the first received uplink UWB positioning signal as the nearest UWB tag module. m , indicating UWB tag module m The corresponding terminal monitoring component and the distance positioning monitoring component n recent; Step S23: The nearest terminal monitoring component will detect the ultrasonic liquid level sensor at the time of data acquisition. t Previously collected data on the liquid level in the wine jar The data is sent to the edge processor to calculate the rate of drop of the continuously collected liquid level data. ； in, For ultrasonic level sensor at the time of acquisition Collected liquid level data, For ultrasonic liquid level sensor at time Collected liquid level data, i For the time of data collection t Previous liquid level data number, For ultrasonic level sensor at the time of acquisition Collected liquid level data, For ultrasonic level sensor at the time of acquisition Collected liquid level data; Step S24: Set the threshold for the rate of drop in liquid level data. ;like Then determine the UWB tag module. m If the wine jar is leaking, proceed to step S31; otherwise, proceed to step S25. Step S25: Repeat steps S22-S24, based on the UWB tag module and the positioning monitoring component. n The distance between them is used to determine the location monitoring components in order from closest to farthest. n Check if any of the surrounding wine jars are leaking, and then identify the leaking jars in sequence, proceeding to step S31.

6. The method for monitoring leakage in wine jars according to claim 5, characterized in that, Step S3 includes: Step S31: Define the coordinates of the UWB base station module within the wine cellar. UWB tag module m Coordinates within the wine cellar UWB tag module m The distance to the UWB base station module is ; ； Step S32: Based on the UWB tag module m The uplink UWB positioning signal is sent to any three UWB base station modules inside the wine cellar. time Construct a system of distance equations relating to the time difference; ； in, For UWB tag module m The time for sending the uplink UWB positioning signal. C For uplink UWB positioning signal transmission speed; Step S33: Combine the three UWB base station modules Using the coordinates within the cellar, the distance equations relating time difference are expanded to calculate the UWB tag module. m Positioning coordinates within the wine cellar That is, to obtain the location coordinates of the wine jar where the leak occurred; ； in, There are three UWB base station modules. Coordinates within the wine cellar; Step S34: Based on the number of UWB base station modules in the wine cellar N The UWB base station module in the wine cellar was dynamically split into... There are three different UWB base station module groups, and each UWB base station module group contains three different UWB base station modules. , Indicates rounding down to the nearest integer; Step S35: From Selected from UWB base station module groups W A group of UWB base station modules is used to locate the leaked wine jars, and the screening process satisfies the objective function. ； in, For the selected W A UWB base station module group is a collection of UWB base station modules. w UWB base station module set The UWB base station module number in the middle, for A UWB base station module group is a collection of UWB base station modules. UWB base station module w The time to receive the uplink UWB positioning signal; Step S36: Utilize W Based on the coordinates of the UWB base station modules within the wine cellar and the time they received the uplink UWB positioning signal, steps S31-S33 are executed to calculate... W The location coordinates of the leaking wine jar; Step S37: According to W The location coordinates of the leaking wine jar were calculated using the positioning coordinates, after error correction. ; ； in, This is the number of the UWB base station module group. For the first The positioning coordinates calculated by each UWB base station module group.

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