Electrical operation early warning method and device, electronic equipment and storage medium

Abstract

Embodiments of the present application disclose an electrical operation early warning method and device, electronic equipment and a storage medium. The position of a to-be-positioned tag is determined according to a to-be-positioned signal sent by the to-be-positioned tag and received by each candidate base station. It is determined whether the position of the to-be-positioned tag is in a target working area. If not, a position error early warning is sent. The embodiments of the present application realize automatic early warning of misentry into an error working area, and reduce the probability of operation accidents due to misentry into the error working area.

Description

Technical Field

[0001] This application relates to communication technology, and more particularly to an electrical operation early warning method, apparatus, electronic device, and storage medium. Background Technology

[0002] In power systems, electrical operations can cause state switching of high-voltage circuits. If mistakes are made, they may lead to equipment damage, unit tripping, and personal injury. Such mistakes are especially common when accidents are caused by going to the wrong work area.

[0003] In existing technologies, ensuring entry into the correct work area is mainly achieved by filling out operation tickets, assigning dedicated personnel for monitoring, having the monitor read and announce the operation tickets on-site, and having the operator listen to the ticket before performing the operation. Manual reminders are used to prevent accidental entry into the wrong work area.

[0004] However, since there are many work areas that are similar in location and appearance, preventing people from accidentally entering the wrong work area by manually reminding them relies on their safety awareness and experience, which leads to a high probability of operational accidents caused by accidentally entering the wrong work area. Summary of the Invention

[0005] This application provides an electrical operation early warning method, device, electronic device, and storage medium to automatically warn of accidental entry into the wrong work area, thereby reducing the probability of operational accidents caused by accidental entry into the wrong work area.

[0006] In a first aspect, embodiments of this application provide an electrical operation early warning method, which includes:

[0007] The location of the tag to be located is determined based on the location signal sent by the tag to be located received by each candidate base station;

[0008] Determine whether the location of the tag to be located is within the target working area;

[0009] If not, a location error warning will be issued.

[0010] Secondly, embodiments of this application also provide an electrical operation early warning device, which includes:

[0011] The location determination module is used to determine the location of the tag to be located based on the location signal sent by the tag to be located received by each candidate base station;

[0012] The location determination module is used to determine whether the location of the tag to be located is within the target working area;

[0013] The location error warning module is used to issue a location error warning if no error is detected.

[0014] Thirdly, embodiments of this application also provide an electronic device, which includes:

[0015] One or more processors;

[0016] Storage device for storing one or more programs;

[0017] When one or more programs are executed by one or more processors, the one or more processors implement any of the electrical operation early warning methods provided in the embodiments of this application.

[0018] Fourthly, embodiments of this application also provide a storage medium including computer-executable instructions, which, when executed by a computer processor, are used to perform any of the electrical operation warning methods provided in embodiments of this application.

[0019] This application determines the location of a tag by receiving its location signal from each candidate base station, thereby improving the accuracy of location determination. It then determines whether the tag's location is within the target work area; if not, it issues a location error warning. The system automatically determines whether an operator has mistakenly entered an incorrect work area by comparing the tag's location with the base station's signal, and issues a warning upon entry, reducing the probability of operational accidents caused by such entry. Therefore, this technical solution solves the problem of relying on manual reminders to prevent entry into incorrect work areas, which depends on personnel's safety awareness and experience, leading to a high probability of operational accidents due to such entry. It achieves the effect of automatically issuing warnings for entering incorrect work areas, thus reducing the probability of operational accidents caused by this method. Attached Figure Description

[0020] Figure 1 This is a flowchart of an electrical operation early warning method according to Embodiment 1 of this application;

[0021] Figure 2 This is a flowchart of an electrical operation early warning method according to Embodiment 2 of this application;

[0022] Figure 3 This is a flowchart of an electrical operation early warning method according to Embodiment 3 of this application;

[0023] Figure 4 This is a schematic diagram of the structure of an electrical operation early warning device according to Embodiment 4 of this application;

[0024] Figure 5 This is a schematic diagram of the structure of an electronic device according to Embodiment 5 of this application. Detailed Implementation

[0025] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0026] It should be noted that the terms "first" and "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0027] Example 1

[0028] Figure 1 This is a flowchart of an electrical operation early warning method provided in Embodiment 1 of this application. This embodiment can be applied to the situation of automatically reminding operators who have accidentally entered the wrong work area. The method can be executed by an electrical operation early warning device, which can be implemented by software and / or hardware and specifically configured in the work monitoring background of electrical operation.

[0029] See Figure 1 The electrical operation early warning method shown is applied to the client side and specifically includes the following steps:

[0030] S110. Determine the location of the tag to be located based on the location signal sent by the tag to be located received by each candidate base station.

[0031] Candidate base stations can be devices used in the working area to receive wireless communication signals from tags to be located. Specifically, candidate base stations can be ultra-wideband (UWB) base stations. UWB technology is a wireless carrier communication technology that uses nanosecond-level non-sinusoidal narrow pulses to transmit data, occupying a wide spectrum. UWB technology has advantages such as low system complexity, low transmitted signal power spectral density, insensitivity to channel fading, low interception capability, and high positioning accuracy, making it particularly suitable for high-speed wireless access in dense multipath environments such as indoors. Utilizing the high positioning accuracy of UWB technology improves the accuracy of subsequent location determination of the tags to be located. Preferably, to further improve the positioning accuracy of candidate base stations, when deploying candidate base stations, it is ensured that the positioning signal transmitted by the tag at any location can be received unobstructed by at least three candidate base stations. Unobstructed means that the signal is not blocked by obstacles during transmission.

[0032] The tag to be located can be a UWB tag carried by an operator working in the work area. It is used to send UWB signals to candidate base stations at a preset frequency to locate the operator's position. The signal to be located can be the UWB signal sent by the tag to be located, used to locate the tag.

[0033] After each candidate base station receives the positioning signal sent by the tag to be located, it determines the location of the tag to be located based on the time difference between the time difference of arrival (TDOA) algorithm, according to the time difference of the time difference of the time difference of arrival of the positioning signal received by each candidate base station.

[0034] S120. Determine whether the location of the label to be located is within the target working area.

[0035] The target work area can be the work area corresponding to the tag to be located, used to determine whether the tag has entered an incorrect work area. The target work area can be determined based on the operation ticket. For example, the target work area can be automatically determined after reading the equipment to be operated from the operation ticket. Alternatively, technicians can pre-plan a corresponding work area for each electrical device and determine the target work area based on the equipment to be operated in the operation ticket; this application does not specifically limit this. The system continuously determines whether the location of the tag to be located is within the target work area.

[0036] S130. If not, issue a location error warning.

[0037] If not, meaning the tag to be located is not in the target work area. In this case, the tag is outside the target work area and may have entered other work areas. If the operation continues according to the operation ticket at this time, it may cause equipment damage and personal injury. Therefore, a location error warning needs to be issued to remind the operator that the operator is in the wrong location. Specifically, the location error warning may include flashing warning lights and voice prompts, and may also include an alarm in the monitoring room to alert the monitoring personnel that the operator has mistakenly entered other work areas.

[0038] If so, meaning the tag to be located is within the target work area, then no alert is needed. The correct movement path can be stored for later guidance in determining whether an error alert is necessary.

[0039] The technical solution of this embodiment determines the location of the tag to be located based on the location signal received by each candidate base station from the tag to be located, thereby improving the accuracy of tag location determination by utilizing the base station; it determines whether the location of the tag to be located is within the target work area; if not, it issues a location error warning, automatically determining whether the operator has mistakenly entered the wrong work area through the tag to be located and the base station, and issuing a warning after entering the wrong area, thus reducing the probability of operational accidents caused by entering the wrong work area. Therefore, the technical solution of this application solves the problem that relying on manual reminders to prevent entering the wrong work area, which depends on personnel's safety awareness and experience, leads to a high probability of operational accidents caused by entering the wrong work area, and achieves the effect of automatically issuing warnings for entering the wrong work area, reducing the probability of operational accidents caused by entering the wrong work area.

[0040] Example 2

[0041] Figure 2 This is a flowchart of an electrical operation early warning method provided in Embodiment 2 of this application. The technical solution of this embodiment is further refined based on the above technical solution.

[0042] Furthermore, the phrase "determine the location of the tag to be located based on the location signal received by each candidate base station from the tag to be located" is further refined into: "determine at least 3 target base stations based on the location signal received by each candidate base station; determine the corresponding time difference of arrival based on the time of arrival of the location signal received by each target base station; determine the location of the tag to be located based on the corresponding time difference of arrival of each target base station," so as to automatically determine the location of the tag to be located.

[0043] See Figure 2 An electrical operation early warning method shown includes:

[0044] S210. Based on the signals to be located received by each candidate base station, determine at least 3 target base stations.

[0045] The target base station can be a base station used to receive the signal to be located. To improve the accuracy of the location of the tag to be located, at least three target base stations are selected according to preset rules. When there are three target base stations, the spatial coordinates of the tag when it sends the signal can be obtained using a trilateration algorithm, thereby determining the location of the tag. For example, the preset rules for determining the target base stations can be determined based on the distance between the signal to be located and the candidate base stations, or the strength of the received signal, etc., and this application does not specifically limit this. For example, the three candidate base stations closest to the signal to be located can be used as target base stations.

[0046] In one optional embodiment, determining at least three target base stations based on the location signal received by each candidate base station includes: determining at least three target base stations based on the strength of the location signal received by each candidate base station.

[0047] If the signal to be located is blocked by an obstacle during transmission, it will be attenuated, which will lead to a decrease in subsequent positioning accuracy. Therefore, the three candidate base stations with the strongest signal strength received by each candidate base station can be identified as the target base station.

[0048] By determining at least three target base stations based on the strength of the signal to be located received by each candidate base station, the positioning accuracy of the tag is improved, ensuring that the signal to be located is not blocked by other obstacles.

[0049] S220. Determine the corresponding time difference of arrival based on the time when the signal to be located is received by each target base station.

[0050] The time difference of arrival (TDOA) can be the time it takes for the signal to be located to travel from transmission to reception at the target base station. The tag to be located can send the signal at fixed time intervals, or it can carry a transmission timestamp when sending the signal. After receiving the signal, the target base station determines the TDOA corresponding to that target base station based on the reception time and the transmission time.

[0051] S230. Determine the location of the tag to be located based on the time difference of arrival corresponding to each target base station.

[0052] TDOA (Time Difference of Origin) positioning is a time difference positioning technique that uses time difference information to locate a target. The basic principle of TDOA is to define the target's position as the time difference between at least three receivers, rather than the actual distance between the receivers.

[0053] Based on the time difference of arrival (TDOA) of each target base station, the location of the tag to be located is determined using the TDOA algorithm. The three target base stations form a trilateration system, and the trilateration algorithm is used to determine the location of the tag.

[0054] S240. Determine whether the location of the label to be located is within the target working area.

[0055] S250, if not, issue a location error warning.

[0056] The technical solution of this embodiment determines at least three target base stations based on the signals to be located received by each candidate base station; determines the corresponding time difference of arrival based on the time of arrival of the signals to be located received by each target base station; and determines the location of the tag to be located based on the corresponding time difference of arrival of each target base station. By using the time difference algorithm, the tag to be located only needs to send a UWB signal once, and there is no need for communication between the tag to be located and the target base station, which improves the positioning speed and positioning capacity, reduces the power consumption required for positioning, and can locate multiple tags to be located. When multiple construction points are carried out at the work site, the positioning requirements can be met, and there is no need to set up multiple monitors to monitor each work point, which reduces the workload of manual labor.

[0057] Example 3

[0058] Figure 3 This is a flowchart of an electrical operation early warning method provided in Embodiment 3 of this application. The technical solution of this embodiment is further refined based on the above technical solution.

[0059] Furthermore, after "issuing a location error warning", the following is added: "store the movement trajectory of the tag to be located and determine the movement trajectory as the wrong entry trajectory" to store the wrong entry trajectory.

[0060] See Figure 3 An electrical operation early warning method shown includes:

[0061] S310. Determine the location of the tag to be located based on the location signal sent by the tag to be located received by each candidate base station.

[0062] S320. Determine whether the location of the label to be located is within the target working area.

[0063] S330, if not, issue a location error warning.

[0064] S340. Store the movement trajectory of the tag to be located and determine the movement trajectory as the erroneous trajectory.

[0065] After issuing an error warning, the movement trajectory of the tag to be located is stored and marked as an erroneous entry trajectory. By storing the erroneous entry trajectory, predictive data can be provided for subsequent warnings. That is, based on the erroneous entry trajectory and the operator's current movement trajectory, it can be predicted whether the operator will move into the wrong work area, thus making erroneous entry prediction possible, rather than issuing a warning only after entering the wrong work area, thereby improving the foresight of the warning.

[0066] In an optional embodiment, after determining the movement trajectory as an intrusion trajectory, the method further includes: if the number of intrusion trajectories corresponding to the target work area is greater than a preset intrusion threshold, then predicting the dangerous location based on the intrusion trajectory.

[0067] The preset intrusion threshold can be the maximum number of pre-defined intrusion trajectories, used to determine whether dangerous location prediction is necessary. Specifically, the preset intrusion threshold can be set empirically, and this application does not impose specific limitations on it. When the number of intrusion trajectories corresponding to the same target work area exceeds the preset intrusion threshold, it indicates a high probability of intrusion failure in that target work area. To prevent further intrusion events, dangerous locations are predicted.

[0068] The hazardous location can be the starting point that leads to accidental entry into the wrong work area. The hazardous location can be predicted based on the accidental entry trajectory, so that timely warnings can be given when the operator approaches the vicinity of the hazardous location. For example, the hazardous location can be the intersection of multiple accidental entry trajectories, the starting point of similar or parallel trajectory segments, etc., and this application does not specifically limit it in this way.

[0069] There may be multiple electrical devices in the work area of ​​electrical equipment, and there may be similar electrical devices in close proximity, which increases the possibility that operators may accidentally enter the wrong work area. Therefore, if the warning device is delayed or malfunctions, it may cause the operator to fail to detect the accident and perform incorrect operation, which poses a major safety hazard.

[0070] If the number of erroneous trajectories corresponding to the target work area exceeds a preset erroneous threshold, then the dangerous location is predicted based on the erroneous trajectories. The erroneous trajectories that have already occurred are predicted to provide an early warning when they reach the dangerous location, thereby improving the foresight of the early warning.

[0071] In one alternative embodiment, predicting dangerous locations based on each stray trajectory includes: predicting dangerous locations based on similar sub-trajectory segments of the stray trajectory.

[0072] Similar sub-trajectory segments can be segments of at least two mis-entered trajectories that are similar to each other. Similarity can be parallel or multiple intersections. A similar sub-trajectory segment of a mis-entered trajectory can be understood as the sub-trajectory segment that caused the mis-entry; therefore, dangerous locations can be predicted based on these similar sub-trajectory segments. For example, the starting point or intersection point of a similar sub-trajectory segment can be considered a dangerous location.

[0073] By analyzing similar sub-trajectory segments of the stray trajectory, dangerous locations can be predicted quickly and accurately, thus improving the efficiency of dangerous location prediction.

[0074] In one optional embodiment, after predicting the dangerous location based on the stray trajectory, the method further includes: determining a warning area based on the dangerous location; and issuing a warning prompt when the target tag is detected to have entered the warning area.

[0075] A warning zone can be a defined area centered on a hazardous location, used to issue a hazard warning upon entry into the zone. For example, the warning zone could be a circular area centered on the hazardous location. When a target tag is detected entering the warning zone, a warning is issued, prompting the operator to confirm whether the current movement path is correct. For example, the warning can be a voice or light prompt. For instance, the warning could be, "You have entered an area prone to accidental entry; please check if your current location is correct." Alternatively, the warning could be a flashing light. It's important to note that the warning must be distinguished from the accidental entry warning; if the accidental entry warning light flashes red, the warning could be a flashing yellow light.

[0076] By identifying warning zones based on hazardous locations, and sending warning alerts when a target tag is detected entering the warning zone, relevant operators can be promptly reminded to confirm their current location. This effectively prevents operators from accidentally entering other work areas and ensures their personal safety.

[0077] The technical solution of this embodiment stores the movement trajectory of the tag to be located and determines the movement trajectory as the accidental entry trajectory, providing a data basis for subsequently determining the starting point of the accidental entry location. This is beneficial for predicting the risk of accidental entry in advance and improving the foresight of the early warning.

[0078] Example 4

[0079] Figure 4 The diagram shown is a structural schematic of an electrical operation early warning device according to Embodiment 4 of this application. This embodiment is applicable to situations where operators who have mistakenly entered the wrong work area are automatically reminded. It is configured in the work monitoring backend of electrical operation. The specific structure of the electrical operation early warning device is as follows:

[0080] The location determination module 410 is used to determine the location of the tag to be located based on the location signal sent by the tag to be located received by each candidate base station.

[0081] The location determination module 420 is used to determine whether the location of the tag to be located is within the target working area;

[0082] The position error warning module 430 is used to issue a position error warning if no error occurs.

[0083] The technical solution of this embodiment determines the location of the tag to be located based on the location signal received by each candidate base station from the tag to be located, thereby improving the accuracy of tag location determination by utilizing the base station; it determines whether the location of the tag to be located is within the target work area; if not, it issues a location error warning, automatically determining whether the operator has mistakenly entered the wrong work area through the tag to be located and the base station, and issuing a warning after entering the wrong area, thus reducing the probability of operational accidents caused by entering the wrong work area. Therefore, the technical solution of this application solves the problem that relying on manual reminders to prevent entering the wrong work area, which depends on personnel's safety awareness and experience, leads to a high probability of operational accidents caused by entering the wrong work area, and achieves the effect of automatically issuing warnings for entering the wrong work area, reducing the probability of operational accidents caused by entering the wrong work area.

[0084] Optionally, the location determination module 410 includes:

[0085] The target base station determination unit is used to determine at least three target base stations based on the signals to be located received by each candidate base station.

[0086] The time difference of arrival determination unit is used to determine the corresponding time difference of arrival based on the time when the signal to be located is received by each target base station;

[0087] The location determination unit is used to determine the location of the tag to be located based on the time difference of arrival corresponding to each target base station.

[0088] Optionally, the target base station determination unit includes:

[0089] The strength determination subunit is used to determine at least three target base stations based on the strength of the signal to be located received by each candidate base station.

[0090] Optional, the electrical operation warning device also includes:

[0091] The erroneous trajectory storage module is used to store the movement trajectory of the tag to be located and to identify the movement trajectory as the erroneous trajectory.

[0092] Optional, the electrical operation warning device also includes:

[0093] The dangerous location prediction module is used to predict dangerous locations based on the erroneous trajectories if the number of erroneous trajectories corresponding to the target work area is greater than a preset erroneous threshold.

[0094] Optional, the hazardous location prediction module includes:

[0095] The danger location prediction unit is used to predict danger locations based on similar sub-trajectory segments of the stray trajectory.

[0096] Optionally, the accidental entry trajectory storage module may also include:

[0097] The warning area determination unit is used to determine the warning area based on the dangerous location;

[0098] The early warning notification sending unit is used to issue an early warning notification when a target tag is detected to have entered the early warning area.

[0099] The electrical operation early warning device provided in this application embodiment can execute the electrical operation early warning method provided in any embodiment of this application, and has the corresponding functional modules and beneficial effects for executing the electrical operation early warning method.

[0100] Example 5

[0101] Figure 5 This is a schematic diagram of the structure of an electronic device provided in Embodiment 4 of this application, as shown below. Figure 5 As shown, the electronic device includes a processor 510, a memory 520, an input device 530, and an output device 540; the number of processors 510 in the electronic device can be one or more. Figure 5 Taking a processor 510 as an example; the processor 510, memory 520, input device 530, and output device 540 in the electronic device can be connected via a bus or other means. Figure 5 Taking the example of a connection between China and Israel via a bus.

[0102] The memory 520, as a computer-readable storage medium, can be used to store software programs, computer-executable programs, and modules, such as the program instructions / modules corresponding to the electrical operation early warning method in the embodiments of this application (e.g., location determination module 410, location judgment module 420, and location error early warning module 430). The processor 510 executes various functional applications and data processing of the electronic device by running the software programs, instructions, and modules stored in the memory 520, thereby implementing the aforementioned electrical operation early warning method.

[0103] The memory 520 may primarily include a program storage area and a data storage area. The program storage area may store the operating system and at least one application program required for a given function; the data storage area may store data created based on terminal usage. Furthermore, the memory 520 may include high-speed random access memory and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid-state storage device. In some instances, the memory 520 may further include memory remotely located relative to the processor 510, which can be connected to the electronic device via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0104] Input device 530 can be used to receive input character information and generate key signal inputs related to user settings and function control of the electronic device. Output device 540 may include display devices such as a display screen.

[0105] Example 6

[0106] Embodiment 6 of this application also provides a storage medium containing computer-executable instructions. When executed by a computer processor, the computer-executable instructions are used to perform an electrical operation early warning method. The method includes: determining the location of the tag to be located based on the positioning signal sent by the tag to be located received by each candidate base station; determining whether the location of the tag to be located is within the target working area; if not, issuing a location error warning.

[0107] Of course, the computer-executable instructions provided in the embodiments of this application are not limited to the method operations described above, but can also perform related operations in the electrical operation early warning method provided in any embodiment of this application.

[0108] Based on the above description of the implementation methods, those skilled in the art can clearly understand that this application can be implemented using software and necessary general-purpose hardware, and of course, it can also be implemented using hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as a computer floppy disk, read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or optical disk, etc., including several instructions to cause an electronic device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments of this application.

[0109] It is worth noting that in the embodiments of the search device described above, the various units and modules included are only divided according to functional logic, but are not limited to the above division, as long as the corresponding functions can be achieved; in addition, the specific names of each functional unit are only for easy differentiation and are not used to limit the scope of protection of this application.

[0110] Note that the above are merely preferred embodiments and the technical principles employed in this application. Those skilled in the art will understand that this application is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the scope of protection of this application. Therefore, although this application has been described in detail through the above embodiments, this application is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of this application, the scope of which is determined by the scope of the appended claims.

Claims

1. An electrical operation early warning method, characterized in that, include: The location of the tag to be located is determined based on the location signal sent by the tag to be located received by each candidate base station; Determine whether the location of the tag to be located is within the target working area; If not, issue a location error warning; Following the issuance of the location error warning, the following is also included: Store the movement trajectory of the tag to be located, and determine the movement trajectory as an accidental entry trajectory; After determining the movement trajectory as an accidental trajectory, the method further includes: If the number of erroneous trajectories corresponding to the target work area is greater than the preset erroneous threshold, then the dangerous location is predicted based on the erroneous trajectories. The prediction of dangerous locations based on each of the aforementioned stray trajectories includes: The dangerous location is predicted based on the similar sub-trajectory segments of the mis-entry trajectory; the similar sub-trajectory segment is a similar segment of at least two mis-entry trajectories, and the similarity is that they are parallel or intersecting multiple times.

2. The method according to claim 1, characterized in that, The step of determining the location of the tag to be located based on the communication signals received by each candidate base station from the tag to be located includes: Based on the signals to be located received by each of the candidate base stations, at least three target base stations are determined; The corresponding time difference of arrival is determined based on the time when the signal to be located is received by each target base station; The location of the tag to be located is determined based on the arrival time difference corresponding to each target base station.

3. The method according to claim 2, characterized in that, The step of determining at least three target base stations based on the location signal received by each of the candidate base stations includes: Based on the strength of the signal to be located received by each of the candidate base stations, at least three target base stations are determined.

4. The method according to claim 1, characterized in that, After predicting the dangerous location based on the misguided trajectory, the method further includes: Determine the warning area based on the described dangerous locations; When the target tag is detected to have entered the warning area, a warning message is issued.

5. An electrical operation early warning device, characterized in that, include: The location determination module is used to determine the location of the tag to be located based on the location signal sent by the tag to be located received by each candidate base station; The location determination module is used to determine whether the location of the tag to be located is within the target working area; The location error warning module is used to issue a location error warning if no error is found. The accidental entry trajectory storage module is used to store the movement trajectory of the tag to be located and to determine the movement trajectory as the accidental entry trajectory; The dangerous location prediction module is used to predict dangerous locations based on the erroneous trajectories if the number of erroneous trajectories corresponding to the target work area is greater than a preset erroneous threshold. The dangerous location prediction module includes: The dangerous location prediction unit is used to predict the dangerous location based on similar sub-trajectory segments of the mistaken entry trajectory; the similar sub-trajectory segment is a similar segment of at least two mistaken entry trajectories, and the similarity is that they are parallel or intersecting multiple times.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the electrical operation early warning method as described in any one of claims 1-4.

7. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by the processor, the program implements the electrical operation early warning method as described in any one of claims 1-4.

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