CN116266900A - Anti-lost method, device, equipment and computer storage medium - Google Patents

Abstract

The embodiment of the present invention relates to the technical field of computer data processing, and discloses a method, device, device, and computer storage medium for preventing loss. The method includes: acquiring a data packet sent by a target user to an edge device; the data packet includes a first user identification and the sending timestamp; the first user identifier is the user identifier of the target user; determine the second user identifier associated with the edge device; the edge device is located in the security range corresponding to the second user identifier; according to the first user identifier, the sending timestamp and The second user identifier determines whether the target user is within the security range corresponding to the first user identifier. Through the above manner, the embodiment of the present invention improves the reliability of the anti-lost technology.

Description

Lost prevention method, device, equipment and computer storage medium

technical field

Embodiments of the present invention relate to the technical field of computer data processing, and in particular to a method, device, equipment, and computer storage medium for preventing loss.

Background technique

The current anti-lost method is to locate the target person wearing the anti-lost device in real time, and determine whether the target person is lost according to the position information, so as to give an alarm in time. In the process of implementing the embodiment of the present invention, the inventors of the present application found that the reliability of the anti-lost method in the prior art is low, which leads to insufficient protection for anti-lost users, and there are certain potential safety hazards.

Contents of the invention

In view of the above problems, an embodiment of the present invention provides a method for preventing loss, which is used to solve the problem of low reliability of the method for preventing loss in the prior art.

According to an aspect of an embodiment of the present invention, a lost prevention method is provided, the method comprising:

Obtaining a data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user;

determining a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier;

Determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier.

In an optional manner, the target user is one of multiple optional users; the method further includes:

Determine the user portrait information of the optional user;

determining a plurality of optional locations corresponding to the optional user according to the user portrait information;

Determining the anti-lost range corresponding to the optional user according to the multiple optional locations;

Taking all the optional locations included in the lost prevention range as constraint conditions, and taking the routes between the optional locations in the lost lost prevention range as optimization targets within the lost lost prevented range, the The anti-lost range is optimized to obtain the security range corresponding to the optional user;

Associating the user identifier of the optional user with the edge device within the security range corresponding to the optional user.

In an optional manner, the method also includes:

Determine user status information and/or current environment information corresponding to the target user;

The security range is dynamically adjusted according to the user state information and/or the current environment information.

In an optional manner, the method also includes:

determining at least one of the target user's predicted moving speed, available communication duration, predicted route, and historical range data according to the user state information;

And/or, determine the predicted passing scene of the target user according to the current environment information;

The safety range is dynamically adjusted according to at least one of the predicted moving speed, available communication duration, predicted route, and historical range data and/or the current environment information.

In an optional manner, the method also includes:

matching the first user ID with the second user ID to obtain a matched edge device;

Determine whether the target user is within a security range corresponding to the first user identifier according to the sending timestamp corresponding to the matched edge device and a preset first duration threshold.

In an optional manner, the method also includes:

determining the predicted passing scene corresponding to the target user;

determining the edge device that does not match the second user identifier as a device to be determined;

When it is determined that the device to be determined is located in the predicted passage scene, determine the residence time of the target user in the predicted passage scene according to the sending timestamp corresponding to the device to be determined;

When the dwell duration is greater than the second duration threshold, the security range corresponding to the first user identifier is updated according to the predicted passing scene.

In an optional manner, the method also includes:

When it is determined that the target user is not in the security range corresponding to the first user identifier, sending security confirmation information to the target user;

Detecting feedback information from the target user regarding the safety confirmation information;

When the feedback information does not meet the preset condition or the feedback information is not received within the third duration threshold, an alarm action is performed.

According to another aspect of the embodiments of the present invention, an anti-lost device is provided, including:

An acquisition module, configured to acquire a data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user;

A first determining module, configured to determine a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier;

The second determining module is configured to determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier.

According to another aspect of the embodiments of the present invention, there is provided an anti-lost device, including: a processor, a memory, a communication interface, and a communication bus, and the processor, the memory, and the communication interface are completed through the communication bus mutual communication;

The memory is used to store at least one executable instruction, and the executable instruction causes the processor to execute the operation of the method for preventing loss.

According to yet another aspect of the embodiments of the present invention, there is provided a computer-readable storage medium, wherein at least one executable instruction is stored in the storage medium, and the executable instruction causes the anti-lost device to execute the above-mentioned anti-lost method. operate.

The embodiment of the present invention obtains the data packet sent by the target user to the edge device; wherein, the data packet includes the first user identifier and the sending time stamp; the first user identifier is the user identifier of the target user; and then, determines the information associated with the edge device The second user ID; the edge device is located in the security range corresponding to the second user ID; finally, according to the first user ID, the sending timestamp and the second user ID, it is determined whether the target user is within the security range corresponding to the first user ID.

Therefore, it is different from the problem in the prior art that the reliability and accuracy of anti-lostness are greatly affected by the environment. In the embodiment of the present invention, the edge device is close to the user side, the signal is less affected by the environment, and the position of the edge device is relatively fixed. The characteristics of the user's security range are delineated by multiple edge devices, and according to the timestamp of the data packet sent by the user to the edge device, it is determined whether the user has reached the next edge device within the security range within the specified time, so that it can Improve the reliability of anti-lost.

The above description is only an overview of the technical solutions of the embodiments of the present invention. In order to better understand the technical means of the embodiments of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and The advantages can be more obvious and understandable, and the specific embodiments of the present invention are enumerated below.

Description of drawings

The drawings are only for illustrating the embodiments and are not to be considered as limiting the invention. Also throughout the drawings, the same reference numerals are used to designate the same components. In the attached picture:

FIG. 1 shows a schematic flow chart of a lost prevention method provided by an embodiment of the present invention;

Fig. 2 shows a schematic diagram of an unoptimized anti-lost range provided by an embodiment of the present invention;

Fig. 3 shows a schematic diagram of an optimized range of loss prevention provided by an embodiment of the present invention;

Fig. 4 shows the process entity diagram of delineating the security range in the anti-lost method provided by the embodiment of the present invention;

Fig. 5 shows a schematic structural diagram of an anti-lost device provided by an embodiment of the present invention;

Fig. 6 shows a schematic structural diagram of an anti-lost device provided by an embodiment of the present invention.

Detailed ways

Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the drawings, it should be understood that the invention may be embodied in various forms and should not be limited to the embodiments set forth herein.

Before describing the embodiments of the present invention, relevant terms are first explained.

Edge device: A device that applies edge computing. Edge computing refers to an open platform that integrates network, computing, storage, and application core capabilities on the side close to the source of objects or data, and provides the nearest end service. An edge device is a device that is fixed in the living and working scene and can obtain nearby user-end data for calculation, and has certain storage and caching capabilities.

Safety equipment: Refers to portable equipment worn by vulnerable groups such as the elderly and children. The main function is to send and receive data packets with edge devices and the cloud, and to communicate with main-end users.

Master end: It can receive reminders that the wearer of the safety equipment leaves the safe range. A security range can be set. Can communicate with security equipment in real time. The range of safety equipment wearers can also be observed in real time.

Fig. 1 shows a flow chart of a method for preventing loss provided by an embodiment of the present invention, and the method is executed by a computer processing device. Computer processing devices may include cell phones, laptops, and the like. As shown in Figure 1, the method includes the following steps:

Step 10: Obtain the data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user.

In one embodiment of the present invention, the target user sends the data packet through the security device, and the sending time stamp is the sending time of the data packet. Each edge device corresponds to a specific edge device identifier. Wherein, the data packet may be obtained by an edge device, and optionally, the edge device may add its own edge device identifier to the obtained data packet and send it to the cloud. The security device is associated with the main-end user, and the main-end user performs loss prevention management on the target user through the security device.

In one embodiment of the present invention, the target user is one of multiple optional users; before step 10, it also includes:

Step 101: Determine user profile information of the optional user.

In an embodiment of the present invention, the user portrait information can be determined according to the user characteristic information pre-uploaded by the main end user or the target user, and can also be determined according to the historical usage data of the security device corresponding to the target user, wherein the historical usage data Including the historical location, historical online time, and historical alarm data of security devices.

Step 102: Determine multiple optional locations corresponding to the optional user according to the user portrait information.

In an embodiment of the present invention, the optional locations may be determined according to the user type corresponding to the user characteristic information, for example, when the user type is a student, the optional locations include schools, playgrounds, and parks. Or it will be specified by the master user. Optional locations can also be determined according to historical usage data, for example, historical locations whose historical online time in the historical usage data exceeds a preset threshold can be determined as optional locations. It is also possible to filter out the alarm locations that appear in the historical alarm data from the optional locations.

Step 103: Determine the anti-lost range corresponding to the optional user according to the multiple optional locations.

In one embodiment of the present invention, the polygon formed by the connection between two optional locations is the anti-lost range, as shown in Figure 2, there are optional locations A, B, C, D, E, F, G and H, the polygon ABCDEFGH is the range of anti-lost.

Step 104: taking all the optional locations within the lost prevention range as constraints, and taking the paths between the optional locations within the lost lost prevention range as optimization targets, The anti-lost range is optimized to obtain the security range corresponding to the optional user.

In an embodiment of the present invention, the optimization process can refer to FIG. 2 and FIG. 3 , wherein FIG. 2 shows the range of anti-lostness before optimization, and FIG. 3 shows the range of anti-lostness after optimization. As shown in Figure 2, the polygon ABCDEFGH of the anti-lost range does not include the polygon BCD, so if the user moves to the polygon BCD, an alarm will be generated, but B, C and D are optional locations, so it should be considered that the polygon BCD still belongs to the user Therefore, it is necessary to appropriately expand the anti-lost range delineated in Figure 2 to avoid that the user's movement path between optional locations is not included in the security range, thereby causing false alarms and reducing user experience.

In yet another embodiment of the present invention, except that the optional locations are unchanged, in order to prevent false alarms caused by the too small range of anti-lost determined according to the connection between the optional locations, the anti-lost range is adjusted. In addition to optimization, it is also possible to optimize the optional location itself, such as dynamically updating the optional location according to the user's current environment and user status, making the security range wider and reducing the false alarm rate.

Therefore, in another embodiment of the present invention, step 104 also includes:

Step 1041: Determine user status information and/or current environment information corresponding to the target user.

In one embodiment of the present invention, the user state information is used to characterize the user's own real-time attributes, which will affect the way the user uses the security device, such as the remaining power of the security device, the user's moving speed, and the user's historical security range data, etc. The current environment information is used to characterize the impact information of the user's current environment on the user's moving state and moving direction, such as traffic information such as current season information, weather information, and traffic flow information.

Step 1042: Dynamically adjust the security range according to the user status information and/or the current environment information.

In one embodiment of the present invention, season, temperature and weather information can be determined according to current environmental information, so as to perform dynamic deletion of potential scenes. For example, when the temperature is extreme or in rainy and snowy days, swimming pools, hospitals and other summer heating or medical places will be added, and according to the current area of the target user, the route with shade or heating equipment near the area will be calculated and added to the security in range.

In yet another embodiment of the present invention, according to the user state information, determine its historical range, predicted moving speed, available communication time, and other related information related to the use of security equipment; way to update the security scope.

Therefore, in another embodiment of the present invention, step 1042 also includes:

Step 421: Determine at least one of the target user's predicted moving speed, available communication time, predicted route, and historical range data according to the user state information.

In one embodiment of the present invention, the user's average moving speed is determined according to the time stamps of the data packets sent by the user in history, and the predicted moving speed is determined according to the average moving speed. Optionally, the available communication duration is determined according to the remaining power of the security device in the user status information. Optionally, the user's predicted route is determined according to the edge device and the predicted moving speed corresponding to the user's historical data packets.

In yet another embodiment of the present invention, combined with the Internet of Vehicles, the edge device can be used to continuously record the traffic in the surrounding area, and synchronize to the cloud, and the cloud will perform a weighted comparison, and determine whether the current security range needs to be adjusted based on the record of the edge device , For example, whether the deviation route greatly affects the time for the target user to reach other edge devices, whether the coverage of the edge device with heavy traffic is the necessary activity range, if not, remove it from the safe range and change it to a dangerous range, After the wearer of the terminal device approaches, a warning will be given to the wearer of the terminal device. If the wearer of the terminal device enters the range and does not leave the range after a period of warning, the main end user will be notified.

Step 422: and/or, determine the predicted passing scene of the target user according to the current environment information.

In one embodiment of the present invention, season, temperature and weather information can be determined according to current environmental information, so as to perform dynamic deletion of potential scenes. For example, in summer, or when the temperature is high, summer scenes such as swimming pools will be added, and according to the current area of the target user, routes with shade or air-conditioning equipment near the area will be calculated and added to the safe range.

Step 423: Dynamically adjust the safety range according to at least one of the predicted moving speed, available communication duration, predicted route, and historical range data and/or the current environment information.

In one embodiment of the present invention, according to the comparison between the predicted moving speed and the preset threshold value, the comparison result is determined to determine the mobile tool used by the target user, such as walking, bicycle or motor vehicle, and when it is determined to be a motor vehicle, And interact with the on-board computer to confirm the vehicle information of the target user. If the vehicle information is public transportation such as taxis and buses, upload the vehicle frame number to the cloud, recalculate the possible driving route of the motor vehicle, and update the security scope. If the vehicle information represents a non-public vehicle, determine whether the non-public vehicle is a private car associated with the target user in advance, and if so, recalculate the possible driving route of the motor vehicle, and update the safety range. If it is an unassociated non-public transportation vehicle, upload the vehicle frame number to the cloud, and send an alarm to the main-end user to notify the main-end user to confirm the safety of the wearer of the terminal device.

In one embodiment of the present invention, the dynamic adjustment according to the available communication duration may be comparing the available communication duration with a target duration threshold, wherein the target duration threshold may be preset or determined according to the travel plan input by the security device , the travel plan includes the departure point, arrival point, and return route. A warning is issued if the available communication duration is less than the target duration threshold. When active outside, the security device will send the power to the cloud, and the cloud will calculate the power required to return home from the current location, and reserve 10% of the power. When the current power is lower than (required power for returning home + preset battery), the safety device will give an early warning.

In yet another embodiment of the present invention, the target duration threshold can also be determined according to the duration required for the current security device to move to other edge device nodes within the security range, if the current power consumption is less than the power consumption required to move to another edge node The sum of the power required by another edge node to the home + the preset power will move the edge node that does not meet the conditions out of the safe range and recalculate the safe range.

In yet another embodiment of the present invention, the historical range data includes historical range adjustment data and historical range adjustment satisfaction degree, which is the satisfaction degree of the master device corresponding to the security device for the dynamic adjustment of the security range. Dynamic adjustment based on historical range data may be to start dynamic adjustment of the security range according to the aforementioned method when the satisfaction degree is greater than the preset satisfaction threshold, so as to avoid too frequent updates of the security range and an increase in the number of alarms, resulting in poor user experience.

Step 1043: Associating the user identifier of the optional user with the edge device within the security range corresponding to the optional user.

In an embodiment of the present invention, the association method may be to inject the user identifier of the optional user into the edge device within the range.

Step 20: Determine a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier.

In an embodiment of the present invention, edge devices with the same second user ID communicate with each other to form a security range of the user corresponding to the second user ID.

In one embodiment of the present invention, step 20 also includes:

Step 201: Determine the predicted passing scene corresponding to the target user.

In an embodiment of the present invention, the predicted passing scene may be determined based on the user portrait of the target user. It can also be adjusted dynamically according to the manner shown in step 1042 . Refer to the previous steps for the adjustment process, and will not repeat them here.

Step 202: Determine the edge device that does not match the second user identifier as a device to be determined.

In one embodiment of the present invention, when an edge device receives a data packet from a user that is inconsistent with its stored associated user ID, in order to prevent misjudgment caused by unreasonable security range demarcation or untimely update, the The edge device that receives the unmatched data packet is determined as the device to be determined, so as to subsequently determine whether the device to be determined should be included in the security range of the user, so that according to the edge device that does not match the second user identifier Update the user's security range to make it more in line with the user's actual scenario.

Step 203: When it is determined that the device to be determined is located in the predicted passing scene, determine the residence time of the target user in the predicted passing scene according to the sending timestamp corresponding to the device to be determined.

In one embodiment of the present invention, it is first determined whether the device to be determined is located in the user's predicted passing scene, if not, the data packet received by the device to be determined is ignored, and if so, the user's residence in the predicted passing scene is further determined. The residence time can be determined according to the time interval between the sending timestamps of the data packets received by the device to be determined in the prediction scenario.

Step 204: When the dwell duration is greater than a second duration threshold, update the security range corresponding to the first user identifier according to the predicted passing scene.

In one embodiment of the present invention, the residence time is used to characterize the durability of the association between the user and the device to be determined, and since it has been confirmed that the device to be determined is in the scene where the user reasonably predicts passing, when the residence time is long If it is greater than the second duration threshold, the device to be determined in the predicted passing scene may be added to the user's safety range.

Step 30: Determine whether the target user is within the security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier.

In one embodiment of the present invention, according to the match between the first user ID and the second user ID, it can be determined whether the edge device associated with the target user has received the data packet sent by the target user, and further according to each The sending timestamp of the data packet received by the edge device determines whether the target user has moved to the next optional edge device within the corresponding security range within the specified time. If the target user does not move within the specified time or the associated edge device does not After receiving the data packet of the target user, it is determined that the target user has left its corresponding security range.

Therefore, in another embodiment of the present invention, step 30 also includes:

Step 301: Match the first user ID with the second user ID to obtain a matched edge device.

In an embodiment of the present invention, when the second user ID is the same as the first user ID, it is determined that they match, and the edge device into which the matched second user ID is injected is determined as the matched edge device.

Step 302: Determine whether the target user is within a security range corresponding to the first user identifier according to the sending timestamp corresponding to the matched edge device and a preset first duration threshold.

In an embodiment of the present invention, judging whether the user has left the safe range may be completed on the side of the edge device. Wherein, the edge devices communicate with each other, and the edge devices store the second user ID and the communication addresses of other edge devices within the security range corresponding to the second user ID.

When an edge device receives a data packet, if it determines that the first user ID in the data packet matches the second user ID stored in itself, it will record the timestamp of the data packet and broadcast it so that the second user ID corresponds to Other edge devices within the security range record the time stamp, thereby detecting whether a data packet with the first user identifier is received within the first duration threshold through other edge devices within the security range. Wherein, the first time threshold is used to characterize the estimated time required for the user to move from one edge device in the security range to the next edge device in the security range under normal circumstances. If yes, it is determined that the user corresponding to the first user identifier is within its safety range, and if not, it is determined that the user corresponding to the first user identifier is out of its safety range.

In yet another embodiment of the present invention, judging whether the user has left the safe range can also be completed in the cloud. After receiving the data packet, the edge device sends the data packet together with its associated second user ID to the cloud. Optional Alternatively, the second user identifier associated with each edge device may also be stored in the cloud. The cloud takes out the first user ID from the data packet, and matches the first user ID with the received or self-stored second user ID. If it matches, record the time stamp of the currently received data packet, and check whether it receives the matched second user ID sent by other edge devices that should arrive within the first duration threshold within the first duration threshold If yes, it is determined that the user corresponding to the first user identifier is within its security range; if not, it is determined that the user corresponding to the first user identifier is out of its security range.

In an embodiment of the present invention, when it is determined that the target user is not in the security range corresponding to the first user identifier, a preset warning action is executed, wherein the warning action may include reminding the target user, and confirming to the target user that their own Whether the status is safe or not may also include reminding the primary end user associated with the target user that the target user has left the security range. Considering that if the reminder to the master user is too frequent, it may affect the user experience, therefore, in another embodiment of the present invention, after step 303, it also includes:

Step 3031: When it is determined that the target user is not in the security range corresponding to the first user identifier, send security confirmation information to the target user.

In one embodiment of the present invention, the security confirmation information is used to confirm whether the target user is actively lost or passively lost. The security confirmation information may include abnormal state prompt information, return path prompt information, and parameters to be confirmed, wherein the abnormal state prompt information includes when the target user has left the safe range, and may also include the latest edge between the target user and the safe range The time interval of device communication, the location information of edge devices in historical communication, etc. The return path prompt information may include the location information of the edge device in the security range of the security device corresponding to the target user, and the like. The parameter to be confirmed is used by the target user to fill in to give feedback on their current status, such as whether they are lost, trapped, or need rescue, etc.

Step 3032: Detect the target user's feedback on the security confirmation information.

In one embodiment of the present invention, the target user sends feedback information on the security confirmation information through the security terminal carried by the target user.

Step 3033: When the feedback information does not meet the preset condition or the feedback information is not received within the third duration threshold, perform an alarm action.

In an embodiment of the present invention, the feedback information may be extracted from the aforementioned field values to be filled, and it is determined whether the target user is in a safe state according to the extracted field values. For example, when the feedback information is "yes" for whether you are lost and trapped, an alarm action is performed. The alarm action may be to notify the main-end user associated with the security device of the target user, wherein the notification content for the main-end user may be determined according to the feedback information of the target user and historically sent data packets.

The method for preventing loss according to another embodiment of the present invention will be described below with reference to FIG. 4 . As shown in Figure 4, first, 1. The master user sends a request to enable the anti-lost mode to the cloud. The request includes the user characteristic information of the target user. 2. The cloud plans routes between optional locations according to the user characteristic information. , and allocate a specific DID (Device ID, unique device identifier) for the target user, and send the DID to the edge device within the coverage of the path, 3. The edge device receives and stores the DID issued by the cloud, thus Complete the association between the user identity and the edge device, and delineate the security range. 4. The edge device sends a data packet confirming the receipt of the DID to the cloud. 5. After receiving the confirmation data packet, the cloud sends the DID to the security device corresponding to the target user, thereby activating the security device.

Then, 6. The security device sends a data packet containing its own DID and time stamp to the edge device. 7. The edge device compares the DID in the received data with the DID received and saved from the cloud in advance. If they are consistent, it indicates the target The user has not stepped out of the safe range, otherwise it is determined that the target user may deviate from the safe range. 8. When the edge device determines that the target user may deviate from the security range, it sends the received data packet to the cloud for storage, so that the cloud can re-plan the security range according to the received data packet, and thus completes the security range for the target user delineation and update.

The anti-lost method provided by the embodiment of the present invention utilizes the characteristics that the edge device is close to the user side, the signal is less affected by the environment, and the location of the edge device is relatively fixed. The time stamp of the data packet to the edge device is used to determine whether the user has reached the next edge device within the safety range within the specified time, thereby improving the reliability of anti-lost.

Fig. 5 shows a schematic structural diagram of an anti-lost device provided by an embodiment of the present invention. As shown in FIG. 5 , the apparatus 40 includes: an acquisition module 401 , a first determination module 402 and a second determination module 403 .

In an optional manner, the obtaining module 401 is configured to obtain a data packet sent by a target user to an edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the User ID of the target user;

The first determining module 402 is configured to determine a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier;

The second determining module 403 is configured to determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier.

In an optional manner, the target user is one of multiple optional users; the first determining module 402 is further configured to:

Determine the user portrait information of the optional user;

determining a plurality of optional locations corresponding to the optional user according to the user portrait information;

Determining the anti-lost range corresponding to the optional user according to the multiple optional locations;

Taking all the optional locations included in the lost prevention range as constraint conditions, and taking the routes between the optional locations in the lost lost prevention range as optimization targets within the lost lost prevented range, the The anti-lost range is optimized to obtain the security range corresponding to the optional user;

Associating the user identifier of the optional user with the edge device within the security range corresponding to the optional user.

In an optional manner, the first determining module 402 is also configured to:

Determine user status information and/or current environment information corresponding to the target user;

The security range is dynamically adjusted according to the user state information and/or the current environment information.

In an optional manner, the first determining module 402 is also configured to:

determining at least one of the target user's predicted moving speed, available communication duration, predicted route, and historical range data according to the user state information;

And/or, determine the predicted passing scene of the target user according to the current environment information;

The safety range is dynamically adjusted according to at least one of the predicted moving speed, available communication duration, predicted route, and historical range data and/or the current environment information.

In an optional manner, the second determination module 403 is also used to:

matching the first user ID with the second user ID to obtain a matched edge device;

Determine whether the target user is within a security range corresponding to the first user identifier according to the sending timestamp corresponding to the matched edge device and a preset first duration threshold.

In an optional manner, the second determination module 403 is also used to:

determining the predicted passing scene corresponding to the target user;

determining the edge device that does not match the second user identifier as a device to be determined;

When it is determined that the device to be determined is located in the predicted passage scene, determine the residence time of the target user in the predicted passage scene according to the sending timestamp corresponding to the device to be determined;

When the dwell duration is greater than the second duration threshold, the security range corresponding to the first user identifier is updated according to the predicted passing scene.

In an optional manner, the second determination module 403 is also used to:

When it is determined that the target user is not in the security range corresponding to the first user identifier, sending security confirmation information to the target user;

Detecting feedback information from the target user regarding the safety confirmation information;

When the feedback information does not meet the preset condition or the feedback information is not received within the third duration threshold, an alarm action is performed.

The anti-lost device provided by the embodiment of the present invention utilizes the characteristics that the edge device is close to the user side, the signal is less affected by the environment, and the location of the edge device is relatively fixed. The time stamp of the data packet to the edge device is used to determine whether the user has reached the next edge device within the safety range within the specified time, thereby improving the reliability of anti-lost.

Fig. 6 shows a schematic structural diagram of the anti-lost device provided by the embodiment of the present invention, and the specific embodiment of the present invention does not limit the specific realization of the anti-lost device.

As shown in FIG. 6 , the anti-lost device may include: a processor (processor) 502 , a communication interface (Communications Interface) 504 , a memory (memory) 506 , and a communication bus 508 .

Wherein: the processor 502 , the communication interface 504 , and the memory 506 communicate with each other through the communication bus 508 . The communication interface 504 is configured to communicate with network elements of other devices such as clients or other servers. The processor 502 is configured to execute the program 510, specifically, may execute the relevant steps in the above embodiment of the method for preventing loss.

Specifically, the program 510 may include program codes including computer-executable instructions.

The processor 502 may be a central processing unit CPU, or an ASIC (Application Specific Integrated Circuit), or one or more integrated circuits configured to implement the embodiments of the present invention. The one or more processors included in the anti-lost device may be of the same type, such as one or more CPUs, or different types of processors, such as one or more CPUs and one or more ASICs.

The memory 506 is used to store the program 510 . The memory 506 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory.

Specifically, the program 510 can be called by the processor 502 to make the anti-lost device perform the following operations:

Obtaining a data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user;

determining a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier;

Determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier.

In an optional manner, the target user is one of multiple optional users; the program 510 is invoked by the processor 502 to make the anti-lost device perform the following operations:

Determine the user portrait information of the optional user;

determining a plurality of optional locations corresponding to the optional user according to the user portrait information;

Determining the anti-lost range corresponding to the optional user according to the multiple optional locations;

Taking all the optional locations included in the lost prevention range as constraint conditions, and taking the routes between the optional locations in the lost lost prevention range as optimization targets within the lost lost prevented range, the The anti-lost range is optimized to obtain the security range corresponding to the optional user;

Associating the user identifier of the optional user with the edge device within the security range corresponding to the optional user.

In an optional manner, the program 510 is invoked by the processor 502 to enable the anti-lost device to perform the following operations:

Determine user status information and/or current environment information corresponding to the target user;

The security range is dynamically adjusted according to the user state information and/or the current environment information.

In an optional manner, the program 510 is invoked by the processor 502 to enable the anti-lost device to perform the following operations:

determining at least one of the target user's predicted moving speed, available communication duration, predicted route, and historical range data according to the user state information;

And/or, determine the predicted passing scene of the target user according to the current environment information;

The safety range is dynamically adjusted according to at least one of the predicted moving speed, available communication duration, predicted route, and historical range data and/or the current environment information.

In an optional manner, the program 510 is invoked by the processor 502 to enable the anti-lost device to perform the following operations:

matching the first user ID with the second user ID to obtain a matched edge device;

Determine whether the target user is within a security range corresponding to the first user identifier according to the sending timestamp corresponding to the matched edge device and a preset first duration threshold.

In an optional manner, the program 510 is invoked by the processor 502 to enable the anti-lost device to perform the following operations:

determining the predicted passing scene corresponding to the target user;

determining the edge device that does not match the second user identifier as a device to be determined;

When it is determined that the device to be determined is located in the predicted passage scene, determine the residence time of the target user in the predicted passage scene according to the sending timestamp corresponding to the device to be determined;

When the dwell duration is greater than the second duration threshold, the security range corresponding to the first user identifier is updated according to the predicted passing scene.

In an optional manner, the program 510 is invoked by the processor 502 to enable the anti-lost device to perform the following operations:

When it is determined that the target user is not in the security range corresponding to the first user identifier, sending security confirmation information to the target user;

Detecting feedback information from the target user regarding the safety confirmation information;

When the feedback information does not meet the preset condition or the feedback information is not received within the third duration threshold, an alarm action is performed.

The anti-lost device provided by the embodiment of the present invention utilizes the characteristics that the edge device is close to the user side, the signal is less affected by the environment, and the location of the edge device is relatively fixed. The time stamp of the data packet to the edge device is used to determine whether the user has reached the next edge device within the safety range within the specified time, thereby improving the reliability of anti-lost.

An embodiment of the present invention provides a computer-readable storage medium, the storage medium stores at least one executable instruction, and when the executable instruction is run on the anti-lost device, the anti-lost device executes any of the above method embodiments The anti-lost method in .

Specifically, the executable instruction can be used to make the anti-lost device perform the following operations:

Obtaining a data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user;

determining a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier;

Determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier.

In an optional manner, the target user is one of multiple optional users; the executable instruction may specifically be used to make the anti-lost device perform the following operations:

Determine the user portrait information of the optional user;

determining a plurality of optional locations corresponding to the optional user according to the user portrait information;

Determining the anti-lost range corresponding to the optional user according to the multiple optional locations;

Taking all the optional locations included in the lost prevention range as constraint conditions, and taking the routes between the optional locations in the lost lost prevention range as optimization targets within the lost lost prevented range, the The anti-lost range is optimized to obtain the security range corresponding to the optional user;

Associating the user identifier of the optional user with the edge device within the security range corresponding to the optional user.

In an optional manner, the executable instruction may specifically be used to make the anti-lost device perform the following operations:

Determine user status information and/or current environment information corresponding to the target user;

The security range is dynamically adjusted according to the user state information and/or the current environment information.

In an optional manner, the executable instruction may specifically be used to make the anti-lost device perform the following operations:

determining at least one of the target user's predicted moving speed, available communication duration, predicted route, and historical range data according to the user state information;

And/or, determine the predicted passing scene of the target user according to the current environment information;

The safety range is dynamically adjusted according to at least one of the predicted moving speed, available communication duration, predicted route, and historical range data and/or the current environment information.

In an optional manner, the executable instruction may specifically be used to make the anti-lost device perform the following operations:

matching the first user ID with the second user ID to obtain a matched edge device;

Determine whether the target user is within a security range corresponding to the first user identifier according to the sending timestamp corresponding to the matched edge device and a preset first duration threshold.

In an optional manner, the executable instruction may specifically be used to make the anti-lost device perform the following operations:

determining the predicted passing scene corresponding to the target user;

determining the edge device that does not match the second user identifier as a device to be determined;

When it is determined that the device to be determined is located in the predicted passage scene, determine the residence time of the target user in the predicted passage scene according to the sending timestamp corresponding to the device to be determined;

When the dwell duration is greater than the second duration threshold, the security range corresponding to the first user identifier is updated according to the predicted passing scene.

In an optional manner, the executable instruction may specifically be used to make the anti-lost device perform the following operations:

When it is determined that the target user is not in the security range corresponding to the first user identifier, sending security confirmation information to the target user;

Detecting feedback information from the target user regarding the safety confirmation information;

When the feedback information does not meet the preset condition or the feedback information is not received within the third duration threshold, an alarm action is performed.

The computer storage medium provided by the embodiment of the present invention utilizes the characteristics that the edge device is close to the user side, the signal is less affected by the environment, and the position of the edge device is relatively fixed. The time stamp of the data packet to the edge device is used to determine whether the user has reached the next edge device within the safety range within the specified time, thereby improving the reliability of anti-lost.

An embodiment of the present invention provides a device for preventing loss, which is used to implement the above method for preventing loss.

An embodiment of the present invention provides a computer program, and the computer program can be invoked by a processor to enable the anti-lost device to execute the anti-lost method in any of the above method embodiments.

An embodiment of the present invention provides a computer program product. The computer program product includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions. The anti-lost method in the method embodiment.

The algorithms or displays presented herein are not inherently related to any particular computer, virtual system, or other device. Various generic systems can also be used with the teachings based on this. The structure required to construct such a system is apparent from the above description. Furthermore, embodiments of the present invention are not directed to any particular programming language. It should be understood that various programming languages can be used to implement the content of the present invention described herein, and the above description of specific languages is for disclosing the best mode of the present invention.

In the description provided herein, numerous specific details are set forth. However, it is understood that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure the understanding of this description.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, in order to streamline the present disclosure and to facilitate an understanding of one or more of the various inventive aspects, various features of the embodiments of the invention are sometimes grouped together into a single implementation examples, figures, or descriptions thereof. This method of disclosure, however, is not to be interpreted as reflecting an intention that the claimed invention requires more features than are expressly recited in each claim.

Those skilled in the art can understand that the modules in the device in the embodiment can be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components in the embodiments can be combined into one module or unit or component, and they can be divided into a plurality of sub-modules or sub-units or sub-components. All features disclosed in this specification (including accompanying claims, abstract and drawings) and any method or method so disclosed may be used in any combination, except that at least some of such features and/or processes or units are mutually exclusive. All processes or units of equipment are combined. Each feature disclosed in this specification (including accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.

It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention can be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In a unit claim enumerating several means, several of these means can be embodied by one and the same item of hardware. The use of the words first, second, and third, etc. does not indicate any order. These words can be interpreted as names. The steps in the above embodiments, unless otherwise specified, should not be construed as limiting the execution order.

Claims (10)

1. A kind of anti-lost method, is characterized in that, described method comprises: Obtaining a data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user; determining a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier; Determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier. 2. The method according to claim 1, wherein the target user is one of multiple optional users; before acquiring the data packet sent by the target user to the edge device, the method includes: Determine the user portrait information of the optional user; determining a plurality of optional locations corresponding to the optional user according to the user portrait information; Determining the anti-lost range corresponding to the optional user according to the multiple optional locations; Taking all the optional locations included in the lost prevention range as constraint conditions, and taking the routes between the optional locations in the lost lost prevention range as optimization targets within the lost lost prevented range, the The anti-lost range is optimized to obtain the security range corresponding to the optional user; Associating the user identifier of the optional user with the edge device within the security range corresponding to the optional user. 3. The method according to claim 2, characterized in that, taking all the optional locations within the range of loss prevention as constraints, taking one of the optional locations within the range of loss prevention The paths between are all in the described anti-lost range as the optimization target, and the described anti-lost range is optimized, and after obtaining the safe range, it includes: Determine user status information and/or current environment information corresponding to the target user; The security range is dynamically adjusted according to the user state information and/or the current environment information. 4. The method according to claim 3, wherein the dynamically adjusting the security range according to the user status information and/or the current environment information comprises: determining at least one of the target user's predicted moving speed, available communication duration, predicted route, and historical range data according to the user state information; And/or, determine the predicted passing scene of the target user according to the current environment information; The safety range is dynamically adjusted according to at least one of the predicted moving speed, available communication duration, predicted route, and historical range data and/or the current environment information. 5. The method according to claim 1, characterized in that, according to the sending time stamp, the first user ID and the second user ID, it is determined whether the target user is in the within safety limits, including: matching the first user ID with the second user ID to obtain a matched edge device; Determine whether the target user is within a security range corresponding to the first user identifier according to the sending timestamp corresponding to the matched edge device and a preset first duration threshold. 6. The method according to claim 5, wherein after the matching of the first user ID and the second user ID to obtain the matched edge device, the method comprises: determining the predicted passing scene corresponding to the target user; determining the edge device that does not match the second user identifier as a device to be determined; When it is determined that the device to be determined is located in the predicted passage scene, determine the residence time of the target user in the predicted passage scene according to the sending timestamp corresponding to the device to be determined; When the dwell duration is greater than the second duration threshold, the security range corresponding to the first user identifier is updated according to the predicted passing scene. 7. The method according to claim 1, wherein, in the step of determining whether the target user corresponds to the first user ID according to the first user ID, sending time stamp and the second user ID, within safe limits, including: When it is determined that the target user is not in the security range corresponding to the first user identifier, sending security confirmation information to the target user; Detecting feedback information from the target user regarding the safety confirmation information; When the feedback information does not meet the preset condition or the feedback information is not received within the third duration threshold, an alarm action is performed. 8. An anti-lost device, characterized in that the device comprises: An acquisition module, configured to acquire a data packet sent by the target user to the edge device; the data packet includes a first user identifier and a sending time stamp; the first user identifier is the user identifier of the target user; A first determining module, configured to determine a second user identifier associated with the edge device; the edge device is located in a security range corresponding to the second user identifier; The second determining module is configured to determine whether the target user is within a security range corresponding to the first user identifier according to the first user identifier, the sending time stamp, and the second user identifier. 9. An anti-lost device, comprising: a processor, a memory, a communication interface, and a communication bus, and the processor, the memory, and the communication interface complete mutual communication through the communication bus; The memory is used to store at least one executable instruction, and the executable instruction causes the processor to execute the operation of the method for preventing loss according to any one of claims 1-7. 10. A computer-readable storage medium, characterized in that at least one executable instruction is stored in the storage medium, and when the executable instruction is run on the anti-lost device, the anti-lost device executes the method according to claim 1- 7. The operation of any one of the anti-lost methods.

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