Substation-based operation control methods, devices, computer equipment, readable storage media, and program products

Abstract

This application relates to a substation-based operation control method, apparatus, computer equipment, computer-readable storage medium, and computer program product. The method includes: obtaining an electronic work permit request; obtaining biometric features collected via a biometric device and digital certificate information obtained from a blockchain certificate system; performing identity verification on the biometric features and digital certificate information based on the identity information and work qualification information carried in the electronic work permit request; if the identity verification is successful, obtaining the status information of each power device within the substation, and generating a device operation status based on the status information; the device operation status is used to characterize the operable state of the corresponding power device; obtaining the real-time location of the operator, and generating spatial constraints by combining the real-time location and the device operation status; the spatial constraints are used to limit the operator's range of movement. This method can improve operation safety and efficiency.

Description

Technical Field

[0001] This application relates to the field of substation technology, and in particular to a substation-based operation control method, apparatus, computer equipment, computer-readable storage medium, and computer program product. Background Technology

[0002] With the development of intelligent power systems and digital substation technologies, technologies such as electronic work permits, remote inspections, and intelligent security are gradually being applied to substation operation management. Managing work processes electronically reduces the manual processing of traditional paper work permits, improves operation management efficiency, and enables digital storage of operation information. Simultaneously, some substations are beginning to introduce technologies such as personnel positioning, video surveillance, and equipment status monitoring to enhance safety supervision capabilities during operations.

[0003] In traditional technology, substation operations are typically managed using paper-based work permits. Specifically, work permits must be handwritten and signed by staff, and approved through on-site transfer and multi-level countersigning before the corresponding work can commence. This process involves manual circulation of work permits among multiple managers, which is time-consuming and can easily lead to delays in emergency situations. Furthermore, traditional work management methods rely heavily on manual verification of personnel identity, equipment status, and work area, resulting in significant safety hazards during operations. Summary of the Invention

[0004] Therefore, it is necessary to provide a substation-based operation control method, device, computer equipment, computer-readable storage medium, and computer program product that can improve operational safety in response to the above-mentioned technical problems.

[0005] In a first aspect, this application provides a substation-based operation control method, comprising:

[0006] Obtain an electronic work permit request; the electronic work permit request is generated and sent by the electronic work system after receiving the work application instruction;

[0007] The system acquires biometric features collected through a biometric device and digital certificate information obtained from a blockchain certificate system, and performs identity verification on the biometric features and digital certificate information based on the identity information and job qualification information carried in the electronic job permit request.

[0008] If the identity verification is successful, the status information of each power device in the substation is obtained, and the device operation status is generated based on the status information; the device operation status is used to characterize the operable status of the corresponding power device.

[0009] The real-time location of the operator is obtained, and spatial constraints are generated by combining the real-time location with the operating status of the equipment; the spatial constraints are used to limit the range of movement of the operator.

[0010] In one embodiment, the step of verifying the identity based on the identity information and job qualification information carried in the electronic job permit request, and verifying the biometrics and digital certificate information, includes:

[0011] Based on the identity information, obtain the corresponding pre-stored biometric template, and perform identity matching and verification on the biometric features according to the pre-stored biometric template;

[0012] Based on the job qualification information, the digital certificate information is validated for legality, and it is determined whether the job qualification information meets the job requirements for the corresponding job type.

[0013] If the identity matching verification is successful, the digital certificate information is valid, and the job qualification information meets the corresponding job requirements, the identity trust verification is deemed successful.

[0014] In one embodiment, the method further includes:

[0015] Based on the job type in the electronic job permit request, the corresponding target qualification requirements are determined; the target qualification requirements include the target qualification type and the target qualification level.

[0016] Obtain the qualification type, qualification level, and qualification validity period of the operator from the job qualification information;

[0017] Determine whether the qualification type matches the target qualification type, whether the qualification level is not lower than the target qualification level, and whether the qualification validity period covers the planned operation time in the electronic work permit request;

[0018] If the qualification type matches, the qualification level is not lower than the target qualification level, and the qualification validity period covers the planned operation time, then the operation qualification information is determined to meet the operation requirements of the corresponding operation type.

[0019] In one embodiment, generating the device operation state based on the state information includes:

[0020] Based on the job type in the electronic job permit request, a corresponding target verification rule set is determined from a preset rule base; wherein, the target verification rule set includes at least one of basic security rules, associated verification rules, and risk prediction rules;

[0021] The status information of the power equipment and the corresponding operating environment information of each power equipment are matched with the target verification rule set to obtain the rule matching result.

[0022] The device operation status is generated based on the matching results of the rules.

[0023] In one embodiment, generating spatial constraints by combining the real-time location and the device operating state includes:

[0024] The target work area is determined based on the equipment operating status and the work area information in the electronic work permit request;

[0025] The spatial constraints are generated by combining the real-time location and the target work area.

[0026] In one embodiment, the real-time location is generated based on multiple positioning base stations within the substation; the spatial constraints are generated by combining the real-time location and the target work area, including:

[0027] The location signal of the operator is acquired, the time difference between the location signal and each location base station is calculated, and the real-time location is determined based on the time difference.

[0028] Based on the motion status of each of the power devices, the target work area, and the real-time location, a real-time work area boundary is generated.

[0029] When the real-time location is detected to be outside the boundary of the real-time operation area, an out-of-bounds alarm is issued.

[0030] Secondly, this application also provides a substation-based operation control device, comprising:

[0031] The acquisition module is used to acquire electronic work permit requests; the electronic work permit request is generated and sent by the electronic work system after receiving a work application instruction;

[0032] The identity verification module is used to acquire biometric features collected by a biometric device and digital certificate information obtained from a blockchain certificate system, and to perform identity verification on the biometric features and digital certificate information based on the identity information and job qualification information carried in the electronic job permit request.

[0033] The device verification module is used to obtain the status information of each power device in the substation when the identity verification is successful, and to generate the device operation status based on the status information; the device operation status is used to characterize the operable status of the corresponding power device.

[0034] The constraint generation module is used to obtain the real-time location of the operator and generate spatial constraints by combining the real-time location with the operating status of the equipment; the spatial constraints are used to limit the range of activity of the operator.

[0035] Thirdly, this application also provides a computer device, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method in any of the above embodiments.

[0036] Fourthly, this application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method in any of the above embodiments.

[0037] Fifthly, this application also provides a computer program product, including a computer program that, when executed by a processor, implements the steps of the methods in any of the above embodiments.

[0038] The aforementioned substation-based operation control method, device, computer equipment, computer-readable storage medium, and computer program product, when the electronic operation system receives an operation application instruction, generates and sends an electronic operation permit request based on the operation information submitted by the operator. Since the electronic operation permit request carries identity information and operation qualification information, the substation can obtain biometric features collected through a biometric device and digital certificate information obtained from a blockchain certificate system based on the electronic operation permit request. It then performs identity verification based on the identity information and operation qualification information, thereby improving the reliability of operator identity verification. If the identity verification passes, it indicates that the current operator possesses the corresponding operation qualification. Therefore, it further obtains the status information of each power equipment within the substation and generates equipment operation status based on the status information to determine whether the corresponding power equipment is in an operable state. Subsequently, since the real-time location of the operator and the equipment operation status are obtained, spatial constraints can be generated by combining the real-time location and equipment operation status to limit the operator's activity range and equipment operation range, thereby reducing the risk of out-of-bounds operations and misoperations, and ultimately improving the safety of the substation operation process and the efficiency of operation permit processing. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is an application environment diagram of a substation-based operation control method in one embodiment;

[0041] Figure 2 This is a flowchart illustrating a substation-based operation control method in one embodiment.

[0042] Figure 3 This is a structural block diagram of a substation-based operation control device in one embodiment;

[0043] Figure 4 This is an internal structural diagram of a computer device in one embodiment. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0045] When workers need to enter a substation to perform maintenance, inspection, switching, or testing, they submit work information through the electronic work system 104. This information includes worker identification, work type, target work area, target power equipment, and planned work time. Upon receiving the submitted work information, the electronic work system 104 generates a corresponding electronic work ticket, extracts identification information, work qualification information, target work area, and target power equipment from the ticket, encapsulates this information to generate an electronic work permit request, and sends the request to the work control system 102.

[0046] After receiving an electronic work permit request, the work control system 102 acquires the biometric features of the worker collected via a biometric device and retrieves the digital certificate information corresponding to the identity information from the blockchain certificate system 106. The blockchain certificate system 106 stores the worker's digital certificate information, which can be certificate data written into the blockchain certificate system 106 after the worker completes identity registration, qualification verification, or certificate issuance. The digital certificate information represents the worker's identity and certificate status. To prevent proxy signing, identity theft, and unauthorized operations, the work control system 102 performs identity verification based on the identity information and work qualification information carried in the electronic work permit request, verifying the biometric features and digital certificate information. This identity verification primarily determines whether the person submitting the work application and entering the work site is the person indicated by the corresponding identity information, and whether the worker is qualified to perform the corresponding work.

[0047] When identity verification is successful, the operation control system 102 acquires the status information of each power device within the substation and generates the device's operating status based on this information. This determines whether the current power device allows personnel to perform operations such as inspection, patrol, switching, testing, or maintenance. After determining the operating status of each power device, the operation control system 102 acquires the real-time location of the personnel and generates corresponding spatial constraints based on the real-time location and the device's operating status. These spatial constraints limit the permissible activity range of the personnel within the substation and the range of power devices they are allowed to operate, thereby achieving dynamic linkage control between personnel, work areas, and power equipment.

[0048] In one exemplary embodiment, such as Figure 2 As shown, a substation operation control method is provided, which is applied to... Figure 1 The following description uses the operation control system 102 as an example, including the following steps 202 to 208. Wherein:

[0049] Step 202: Obtain an electronic work permit request; the electronic work permit request is generated and sent by the electronic work system after receiving the work application instruction.

[0050] Optionally, when personnel need to enter the substation to perform maintenance, inspection, switching, or testing operations, they submit work information through the electronic work system 104. This work information includes personnel identification information, work type, target work area, target power equipment, and planned work time. Upon receiving the work information submitted by the personnel, the electronic work system 104 generates a corresponding electronic work ticket based on the work information. It then extracts fields such as identification information, work qualification information, target work area, and target power equipment from the electronic work ticket, encapsulates these fields to generate an electronic work permit request, and sends the electronic work permit request to the work control system 102.

[0051] Step 204: Obtain biometric features collected by the biometric device and digital certificate information obtained from the blockchain certificate system, and perform identity verification on the biometric features and digital certificate information based on the identity information and work qualification information carried in the electronic work permit request.

[0052] The biometric device can be an explosion-proof iris scanner with an operating temperature of -40℃ to 85℃. In other embodiments, the biometric device can also be a face recognition device, fingerprint recognition device, palm vein recognition device, voiceprint recognition device, or other identification equipment used to collect the biometric characteristics of workers.

[0053] Specifically, when the work control system receives an electronic work permit request, it acquires biometric data collected by a biometric device and digital certificate information obtained from a blockchain certificate system. Based on the identity information and work qualification information carried in the electronic work permit request, it performs a trusted identity verification of the biometric data and digital certificate information.

[0054] Optionally, the operation control system can obtain the corresponding pre-stored biometric template based on the identity information, and match the biometric features collected by the biometric device with the pre-stored biometric template to determine whether the current operator is the person corresponding to the identity information. At the same time, the operation control system can also verify the legality of the digital certificate information based on the operation qualification information to determine whether the digital certificate information is valid and whether the current operator has the operation qualification for the corresponding operation type. When the biometric matching is successful and the digital certificate information verification is successful, the identity trust verification is confirmed to be successful.

[0055] Step 206: If the identity verification is successful, obtain the status information of each power device in the substation, and generate the device operation status based on the status information; the device operation status is used to characterize the operable status of the corresponding power device.

[0056] Optionally, after the identity verification is successful, the status information of each power device in the substation is obtained, and the device operation status is generated based on the status information. For example, when the power device is a circuit breaker, the circuit breaker's open / closed status, grounding status, and interlocking status can be used to determine whether the circuit breaker is in an operable state; when the power device is a disconnector, the disconnector's open / closed status, and interlocking status can be used to determine whether the disconnector is in an operable state; when the power device has an abnormal status, an abnormal interlocking status, or is in a live state, the corresponding power device can be determined to be in a restricted operation state.

[0057] Optionally, each power device has a corresponding equipment monitoring system. The equipment monitoring system acquires the status information of the corresponding power device in real time through position sensors, current sensors, voltage sensors, temperature sensors, pressure sensors, and status detection modules deployed on the power device. After the operation control system completes the identity verification, it can obtain the status information of each power device through the corresponding equipment monitoring system and generate the corresponding equipment operation status based on the status information.

[0058] Optionally, after acquiring the status information, the operation control system will query the corresponding verification rule set from the preset rule base and determine the operable status of each power device based on the verification rule set.

[0059] Step 208: Obtain the real-time location of the operator and generate spatial constraints by combining the real-time location with the equipment operation status; the spatial constraints are used to limit the range of movement of the operator.

[0060] Since substations typically contain high-voltage equipment areas, energized areas, and restricted access areas, the permissible activity range and permissible operation range differ for different work areas. Therefore, it is necessary to generate corresponding spatial constraints for workers to prevent them from accidentally entering dangerous areas or performing operations beyond their permitted scope.

[0061] Since workers move in real time while working in the substation and the operating status of equipment changes in reality, the electronic work system will obtain the real-time location of the workers and generate spatial constraints by combining the real-time location and the operating status of the equipment.

[0062] Optionally, after entering the substation, workers need to wear positioning tags, which can be UWB positioning tags. During the operation, each positioning base station can obtain the real-time location of the workers by receiving positioning signals sent by the positioning tags, and generate corresponding spatial constraints based on the real-time location, the target work area, and the equipment operating status. Workers can also obtain the current spatial constraint information through the positioning tags or a display terminal connected to the positioning tags to determine the currently allowed work area and the range of power equipment that can be operated.

[0063] In the above embodiments, when the electronic work system receives a work application instruction, it generates and sends an electronic work permit request based on the work information submitted by the worker. Since the electronic work permit request carries identity information and work qualification information, the substation can obtain biometric features collected by a biometric device and digital certificate information obtained from a blockchain certificate system based on the electronic work permit request. It then performs identity verification on the biometric features and digital certificate information based on the identity information and work qualification information, thereby improving the reliability of worker identity verification. If the identity verification is successful, it indicates that the current worker has the corresponding work qualification. Therefore, the substation further obtains the status information of each power equipment in the substation and generates the equipment operation status based on the status information to determine whether the corresponding power equipment is in an operable state. Subsequently, since the real-time location of the worker and the equipment operation status are obtained, spatial constraints can be generated by combining the real-time location and the equipment operation status to limit the range of activities of the worker and the range of equipment operation, thereby reducing the risk of cross-boundary operations and misoperation, and thus improving the safety of the substation operation process and the efficiency of work permit processing.

[0064] In one embodiment, the above-mentioned identity verification of biometrics and digital certificate information based on the identity information and job qualification information carried in the electronic job permit request includes: obtaining the corresponding pre-stored biometric template based on the identity information, and performing identity matching verification on the biometrics according to the pre-stored biometric template; performing certificate legality verification on the digital certificate information based on the job qualification information, and determining whether the job qualification information meets the job requirements of the corresponding job type; and determining that the identity verification is successful if the identity matching verification is successful, the digital certificate information is legal, and the job qualification information meets the corresponding job requirements.

[0065] The pre-stored biometric template can be generated and stored by the operation control system based on the biometric features collected by the biometric device when the operator first enters the substation for identity authentication. In other embodiments, when the operation control system does not have a pre-stored biometric template corresponding to the identity information, the biometric template generated during the operator's pre-registration can also be obtained from the electronic operation system.

[0066] Optionally, the operation control system will obtain the corresponding pre-stored biometric template based on the identity information, and perform feature matching between the pre-stored biometric template and the biometric features collected by the biometric identification device to verify identity. When the matching degree between the biometric features is greater than a preset matching threshold, the identity verification is deemed successful.

[0067] Among them, job qualification information refers to information used to characterize the job qualifications of workers, such as job qualification type, job qualification level, job qualification validity period, and permitted job scope.

[0068] Optionally, the work control system can verify the legality of the digital certificate's status, validity period, and signature information based on the digital certificate information, and determine whether the current operator possesses the corresponding job qualification based on the job qualification information. For example, it can determine the corresponding target job requirements based on the job type in the electronic work permit request, and determine whether the job qualification type matches the target job requirements, whether the job qualification level meets the target job requirements, and whether the job qualification validity period covers the planned work time. When the digital certificate information is valid and the job qualification information meets the job requirements for the corresponding job type, it is determined that the job qualification information meets the job requirements for the corresponding job type.

[0069] Specifically, if the identity matching verification passes, the digital certificate information is valid, and the job qualification information meets the corresponding job requirements, the identity trust verification is deemed to have passed.

[0070] It should be noted that there is no fixed execution order among identity matching verification, digital certificate information legality verification, and job requirement verification. The job control system can execute the corresponding verification processes in any order or in parallel.

[0071] In the above embodiments, this application verifies the identity of operators by means of biometrics, digital certificate information and work qualification information, which can improve the reliability of operator identity authentication and reduce the risks of proxy signing, identity theft and unauthorized operation; at the same time, it can dynamically confirm whether operators have the corresponding work qualifications, thereby improving the safety of substation operation process.

[0072] Furthermore, in one embodiment, the method further includes: determining the corresponding target qualification requirements based on the job type in the electronic job permit request; the target qualification requirements include the target qualification type and the target qualification level; obtaining the qualification type, qualification level, and qualification validity period of the operator from the job qualification information; determining whether the qualification type matches the target qualification type, whether the qualification level is not lower than the target qualification level, and whether the qualification validity period covers the planned job time in the electronic job permit request; if the qualification type matches, the qualification level is not lower than the target qualification level, and the qualification validity period covers the planned job time, determining that the job qualification information meets the job requirements of the corresponding job type.

[0073] Among them, the target qualification type is used to determine the corresponding job category of the operator, such as high-voltage operation qualification, live-line operation qualification, or confined space operation qualification, which is used to characterize the types of operations that the operator is allowed to perform; the target qualification level refers to the corresponding qualification level of the operator, such as Level 1 electrician, Level 2 electrician, or senior maintenance qualification, which is used to characterize the level or scope of operations that the operator is allowed to perform; the qualification validity period refers to the valid time range of the corresponding job qualification, such as the annual inspection validity period of an electrician's certificate or the validity period of a special operation permit, which is used to characterize whether the current job qualification is valid.

[0074] In order to determine whether the current operator is qualified to perform the corresponding work task, this embodiment will determine whether the qualification type matches the target qualification type, whether the qualification level is not lower than the target qualification level, and whether the qualification validity period covers the planned work time in the electronic work permit request.

[0075] For example, when the electronic work permit request corresponds to a high-voltage maintenance operation, the target qualification type can be determined to be a high-voltage work qualification, the target qualification level to be a Level II or higher electrician qualification, and it can be determined whether the validity period of the operator's qualification covers the current planned work time. When the operator's qualification type is a high-voltage work qualification, the qualification level is a Level I electrician qualification, and the qualification validity period has not expired, it can be determined that the current operator meets the work requirements for the corresponding work type.

[0076] If the qualification type matches, the qualification level is not lower than the target qualification level, and the qualification validity period covers the planned operation time, the operation qualification information is determined to meet the operation requirements of the corresponding operation type. If any one of the conditions is not met, the operation qualification information is determined to meet the operation requirements of the corresponding operation type.

[0077] In the above embodiments, by verifying the qualification type, qualification level, and qualification validity period, it is possible to dynamically confirm whether the operator has the corresponding job qualification, thereby improving the safety of substation operations.

[0078] In one embodiment, generating the device operation status based on status information includes: determining a corresponding target verification rule set from a preset rule base according to the job type in the electronic job permit request; wherein the target verification rule set includes at least one of basic security rules, associated verification rules, and predicted risk rules; performing rule matching between the status information of the power equipment and the corresponding operating environment information of each power equipment and the target verification rule set to obtain a rule matching result; and generating the device operation status based on the rule matching result.

[0079] The verification rule set corresponding to each power device in the preset rule base can be a set of rules generated according to the substation operation specifications, safety operation specifications and the operation requirements of different power devices.

[0080] Optionally, based on the job type in the electronic job permit request, a search is performed in the preset rule base to determine the target verification rule set corresponding to the job type, that is, to determine the equipment status verification rule and environment verification rule corresponding to the current job type.

[0081] Optionally, the target verification rule set includes at least one of basic safety rules, associated verification rules, and risk prediction rules. Basic safety rules refer to rules used to verify the basic operating status of power equipment, such as circuit breaker opening / closing status verification rules, grounding status verification rules, and interlocking status verification rules. Associated verification rules refer to rules used to jointly verify the status information of multiple devices or environmental information, such as simultaneously verifying the status of disconnecting switches and grounding status during high-voltage maintenance work. Risk prediction rules refer to rules used to predict the current operational risk based on historical operating data and current operating condition data, such as determining whether there are abnormal risks in the current power equipment based on temperature or pressure change trends.

[0082] Optionally, when determining the operating status of the equipment, the corresponding operating environment information of the power equipment will also be obtained. Operating environment information refers to environmental status information corresponding to the current operating area, such as temperature, humidity, gas concentration, smoke, or wind speed. This is because some power equipment, although meeting basic operating status requirements, still poses operational risks when environmental conditions are abnormal; therefore, it is necessary to perform joint verification using the corresponding operating environment information.

[0083] Optionally, after obtaining the operating environment information, the status information of the power equipment and the corresponding operating environment information of each power equipment are matched with the target verification rule set to obtain the rule matching result. The rule matching result is used to characterize whether the current power equipment and operating environment meet the corresponding operating requirements. For example, when the rule matching result is yes, it indicates that the current power equipment status and operating environment meet the corresponding operating requirements, and the equipment operation status is determined to be operable. Otherwise, it is inoperable.

[0084] Optionally, the status information of the power equipment and the corresponding operating environment information of each power equipment can be matched with the target verification rule set through a pre-configured rule matching engine or a rule decision module based on rule reasoning algorithm to obtain the rule matching result.

[0085] In the above embodiments, by dynamically determining the corresponding target verification rule set according to the job type, and combining the power equipment status information and the working environment information for rule matching, it is possible to dynamically determine whether the current power equipment meets the corresponding job requirements, thereby reducing the risk of equipment misoperation and continued operation under abnormal environmental conditions.

[0086] In one embodiment, the above-mentioned generation of spatial constraints by combining real-time location and device operating status includes: determining a target operating area based on device operating status and operating area information in electronic work permit requests; and generating spatial constraints by combining real-time location and target operating area.

[0087] Optionally, the initial work area is first determined based on the work area information carried in the electronic work permit request, and then the target work area is determined by combining the equipment operating status and the initial work area.

[0088] For example, after determining the initial work area, the target work area is then determined by considering the operating status of each target power device within the target work area. For instance, if some target power devices within the target work area are in a restricted or hazardous operating state, the boundary of the initial work area can be adjusted based on the location of the corresponding target power devices to determine the target work area.

[0089] Since the workers will move within the substation, spatial constraints will be generated by combining the workers' real-time location with the target work area.

[0090] Optionally, some power equipment undergoes changes in motion state during operation, such as the boom of hoisting equipment rotating or the position of mobile maintenance equipment changing. Therefore, spatial constraints are dynamically generated by combining real-time location, motion state information of the power equipment, and target work area, so that the spatial constraints can be updated in real time as the motion state of the power equipment changes.

[0091] In the above embodiments, by dynamically determining the target work area in conjunction with the equipment operation status and generating spatial constraints based on the real-time location of the operators, the risk of operators accidentally entering dangerous areas and operating beyond the scope can be reduced, thereby improving the safety of substation operations.

[0092] Furthermore, in one embodiment, the aforementioned real-time location is generated based on multiple positioning base stations within the substation; the positioning signal of the operator is acquired, the time difference between the positioning signal and each positioning base station is calculated, and the real-time location is determined based on the time difference; the boundary of the real-time work area is generated based on the motion status of each power equipment, the target work area, and the real-time location; when the real-time location is detected to exceed the boundary of the real-time work area, an over-boundary alarm is issued.

[0093] In this embodiment, the real-time location of the worker is generated based on multiple positioning base stations within the substation. To determine the worker's real-time location, the positioning signal transmitted by the UWB positioning tag worn by the worker is first acquired. Then, the time difference of arrival of the positioning signal to each positioning base station is calculated, and the real-time location is determined based on the time difference.

[0094] Because there are many electrical devices and numerous obstructions within the substation, this embodiment uses multiple positioning base stations to collaboratively determine the real-time location of the workers. Optionally, the relative distance between the positioning signal and each positioning base station can be calculated based on the time difference of arrival corresponding to each positioning base station, and the real-time location of the workers can be determined based on the relative distances corresponding to multiple positioning base stations.

[0095] For example, six UWB-TDOA positioning base stations can be set up within the substation work area. These base stations form a ranging network, with a synchronization accuracy of less than 1 ns between them. The UWB positioning tag worn by the worker sends positioning signals to each base station, which receives and records the corresponding arrival time. The work control system then calculates the time difference of arrival of the positioning signal to each base station and, based on this time difference, calculates the relative distance between the positioning signal and each base station, thereby determining the worker's real-time location.

[0096] Because substations contain numerous electrical devices and complex electromagnetic environments, positioning signals are easily affected by factors such as temperature changes and environmental attenuation during propagation. Therefore, the operation control system can also compensate for and correct the arrival time difference corresponding to each positioning base station. For example, the original arrival time difference can be dynamically corrected based on a temperature compensation coefficient corresponding to the ambient temperature and an environmental attenuation coefficient corresponding to the propagation distance. For example, the corrected arrival time difference can be determined using the following formula:

[0097] Formula (1)

[0098] in, This indicates the corrected time difference of arrival. This represents the original time difference of arrival, T represents the ambient temperature, and k represents the temperature compensation coefficient. as well as d represents the environmental attenuation coefficient, and d represents the propagation distance of the positioning signal.

[0099] Then, the motion status of each power device is acquired, and the real-time work area boundary is generated by combining the motion status of each power device, the target work area, and the real-time location.

[0100] Optionally, the boundary of the target work area can be dynamically adjusted according to the direction and range of movement of each power device and the boundary of the target work area to generate a real-time work area boundary.

[0101] Optionally, when the real-time location is detected to be outside the boundary of the real-time work area, an out-of-bounds alarm is issued to remind the workers to leave the danger zone or to restrict the operating range of the corresponding electrical equipment.

[0102] For example, sound and light alerts or vibration alerts can be provided through UWB positioning tags worn by workers.

[0103] In the above embodiments, the real-time location of the workers is determined by multiple positioning base stations, and the real-time work area boundary is dynamically generated by combining the movement status of the power equipment. This can improve the accuracy of worker location detection and reduce the risk of workers accidentally entering dangerous areas or operating beyond their designated range.

[0104] It should be understood that although the steps in the flowcharts of the embodiments described above are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some steps in the flowcharts of the embodiments described above may include multiple steps or multiple stages. These steps or stages are not necessarily completed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be performed alternately or in turn with other steps or at least some of the steps or stages of other steps.

[0105] Based on the same inventive concept, this application also provides a substation-based operation control device for implementing the substation-based operation control method described above. The solution provided by this device is similar to the solution described in the above method; therefore, the specific limitations of the one or more substation-based operation control device embodiments provided below can be found in the limitations of the substation-based operation control method described above, and will not be repeated here.

[0106] In one exemplary embodiment, such as Figure 3 As shown, a substation-based operation control device is provided, comprising: an acquisition module 100, an identity verification module 200, an equipment verification module 300, and a constraint generation module 400, wherein:

[0107] The acquisition module 100 is used to acquire electronic work permit requests; the electronic work permit request is generated and sent by the electronic work system after receiving the work application instruction.

[0108] The identity verification module 200 is used to acquire biometric features collected by a biometric device and digital certificate information obtained from a blockchain certificate system, and to perform identity verification on the biometric features and digital certificate information based on the identity information and work qualification information carried in the electronic work permit request.

[0109] The device verification module 300 is used to obtain the status information of each power device in the substation when the identity verification is successful, and to generate the device operation status based on the status information; the device operation status is used to characterize the operable status of the corresponding power device.

[0110] The constraint generation module 400 is used to obtain the real-time location of the operator and generate spatial constraints by combining the real-time location with the equipment operation status; the spatial constraints are used to limit the range of movement of the operator.

[0111] In one embodiment, the identity verification module 200 includes:

[0112] The identity matching unit is used to obtain the corresponding pre-stored biometric template based on the identity identification information, and to perform identity matching verification of biometric features according to the pre-stored biometric template.

[0113] The certificate verification unit is used to verify the legality of digital certificate information based on job qualification information and determine whether the job qualification information meets the job requirements of the corresponding job type.

[0114] The verification and judgment unit is used to determine that the identity trust verification has passed if the identity matching verification is successful, the digital certificate information is legal, and the job qualification information meets the corresponding job requirements.

[0115] In one embodiment, the certificate verification unit includes:

[0116] The qualification determination subunit is used to obtain the qualification type, qualification level, and qualification validity period of the operators from the job qualification information.

[0117] The judgment sub-unit is used to determine whether the qualification type matches the target qualification type, whether the qualification level is not lower than the target qualification level, and whether the qualification validity period covers the planned operation time in the electronic work permit request.

[0118] The requirement is to determine whether the job qualification information meets the job requirements of the corresponding job type, provided that the qualification type matches, the qualification level is not lower than the target qualification level, and the qualification validity period covers the planned job time.

[0119] In one embodiment, the device verification module 300 includes:

[0120] The search unit is used to determine the corresponding target verification rule set from the preset rule base according to the job type in the electronic job permit request; wherein the target verification rule set includes at least one of basic security rules, associated verification rules and risk prediction rules.

[0121] The matching unit is used to match the status information of the power equipment and the corresponding operating environment information of each power equipment with the target verification rule set to obtain the rule matching result.

[0122] The status determination unit is used to generate the device operation status based on the rule matching results.

[0123] In one embodiment, the constraint generation module 400 includes:

[0124] The area determination unit is used to determine the target work area based on the equipment operating status and the work area information in the electronic work permit request.

[0125] The constraint determination unit is used to generate spatial constraints by combining real-time location and target work area.

[0126] In one embodiment, the constraint determination unit includes:

[0127] The signal acquisition subunit is used to acquire the positioning signal of the operator, calculate the time difference between the positioning signal and each positioning base station, and determine the real-time position based on the time difference.

[0128] The boundary determination sub-unit is used to generate the real-time work area boundary based on the motion status of each power device, the target work area, and the real-time location.

[0129] The alert subunit is used to issue an out-of-bounds alarm when the real-time location is detected to be outside the boundary of the real-time operation area.

[0130] The modules in the aforementioned substation-based operation control device can be implemented entirely or partially through software, hardware, or a combination thereof. These modules can be embedded in or independent of the processor in a computer device, or stored in the computer device's memory as software, so that the processor can call and execute the corresponding operations of each module.

[0131] In one exemplary embodiment, a computer device is provided, which may be a server, and its internal structure diagram may be as follows: Figure 4As shown, this computer device includes a processor, memory, input / output (I / O) interfaces, and a communication interface. The processor, memory, and I / O interfaces are connected via a system bus, and the communication interface is also connected to the system bus via the I / O interfaces. The processor provides computational and control capabilities. The memory includes non-volatile storage media and internal memory. The non-volatile storage media stores the operating system, computer programs, and a database. The internal memory provides the environment for the operation of the operating system and computer programs stored in the non-volatile storage media. The database stores digital certificate information. The I / O interfaces are used for exchanging information between the processor and external devices. The communication interface is used for communication with external terminals via a network connection. When the computer program is executed by the processor, it implements a substation-based operation control method.

[0132] Those skilled in the art will understand that Figure 4 The structure shown is merely a block diagram of a portion of the structure related to the present application and does not constitute a limitation on the computer device to which the present application is applied. Specific computer devices may include more or fewer components than those shown in the figure, or combine certain components, or have different component arrangements.

[0133] In one exemplary embodiment, a computer device is provided, including a memory and a processor, wherein the memory stores a computer program, and the processor executes the computer program to implement the steps of the method in any of the above embodiments.

[0134] In one embodiment, a computer-readable storage medium is provided having a computer program stored thereon, which, when executed by a processor, implements digital certificate information.

[0135] In one embodiment, a computer program product is provided, including a computer program that, when executed by a processor, implements digital certificate information.

[0136] Those skilled in the art will understand that all or part of the processes in the methods of the above embodiments can be implemented by a computer program instructing related hardware. The computer program can be stored in a non-volatile computer-readable storage medium, and when executed, it can include the processes of the embodiments of the above methods. Any references to memory, databases, or other media used in the embodiments provided in this application can include at least one of non-volatile memory and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive random access memory (ReRAM), magnetic random access memory (MRAM), ferroelectric random access memory (FRAM), phase change memory (PCM), graphene memory, etc. Volatile memory can include random access memory (RAM) or external cache memory, etc. By way of illustration and not limitation, RAM can take many forms, such as Static Random Access Memory (SRAM) or Dynamic Random Access Memory (DRAM). The databases involved in the embodiments provided in this application may include at least one type of relational database and non-relational database. Non-relational databases may include, but are not limited to, blockchain-based distributed databases. The processors involved in the embodiments provided in this application may be general-purpose processors, central processing units, graphics processing units, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, artificial intelligence (AI) processors, etc., and are not limited to these.

[0137] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this application.

[0138] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A substation-based operation control method, characterized in that, The method includes: Obtain an electronic work permit request; the electronic work permit request is generated and sent by the electronic work system after receiving the work application instruction; The system acquires biometric features collected through a biometric device and digital certificate information obtained from a blockchain certificate system, and performs identity verification on the biometric features and digital certificate information based on the identity information and job qualification information carried in the electronic job permit request. If the identity verification is successful, the status information of each power device in the substation is obtained, and the device operation status is generated based on the status information; the device operation status is used to characterize the operable status of the corresponding power device. The real-time location of the operator is obtained, and spatial constraints are generated by combining the real-time location with the operating status of the equipment; the spatial constraints are used to limit the range of movement of the operator.

2. The method according to claim 1, characterized in that, The process of verifying the identity based on the identity information and job qualification information carried in the electronic work permit request, and verifying the identity of the biometrics and the digital certificate information, includes: Based on the identity information, obtain the corresponding pre-stored biometric template, and perform identity matching and verification on the biometric features according to the pre-stored biometric template; Based on the job qualification information, the digital certificate information is validated for legality, and it is determined whether the job qualification information meets the job requirements for the corresponding job type. If the identity matching verification is successful, the digital certificate information is valid, and the job qualification information meets the corresponding job requirements, the identity trust verification is deemed successful.

3. The method according to claim 2, characterized in that, The method further includes: Based on the job type in the electronic job permit request, the corresponding target qualification requirements are determined; the target qualification requirements include the target qualification type and the target qualification level. Obtain the qualification type, qualification level, and qualification validity period of the operator from the job qualification information; Determine whether the qualification type matches the target qualification type, whether the qualification level is not lower than the target qualification level, and whether the qualification validity period covers the planned operation time in the electronic work permit request; If the qualification type matches, the qualification level is not lower than the target qualification level, and the qualification validity period covers the planned operation time, then the operation qualification information is determined to meet the operation requirements of the corresponding operation type.

4. The method according to claim 1, characterized in that, The step of generating the device operation status based on the status information includes: Based on the job type in the electronic job permit request, a corresponding target verification rule set is determined from a preset rule base; wherein, the target verification rule set includes at least one of basic security rules, associated verification rules, and risk prediction rules; The status information of the power equipment and the corresponding operating environment information of each power equipment are matched with the target verification rule set to obtain the rule matching result. The device operation status is generated based on the matching results of the rules.

5. The method according to claim 1, characterized in that, The generation of spatial constraints by combining the real-time location and the device operating status includes: The target work area is determined based on the equipment operating status and the work area information in the electronic work permit request; The spatial constraints are generated by combining the real-time location and the target work area.

6. The method according to claim 5, characterized in that, The real-time location is generated based on multiple positioning base stations within the substation; combining the real-time location and the target work area, the spatial constraints are generated, including: The location signal of the operator is acquired, the time difference between the location signal and each location base station is calculated, and the real-time location is determined based on the time difference. Based on the motion status of each of the power devices, the target work area, and the real-time location, a real-time work area boundary is generated. When the real-time location is detected to be outside the boundary of the real-time operation area, an out-of-bounds alarm is issued.

7. A substation-based operation control device, characterized in that, The device includes: The acquisition module is used to acquire electronic work permit requests; the electronic work permit request is generated and sent by the electronic work system after receiving a work application instruction; The identity verification module is used to acquire biometric features collected by a biometric device and digital certificate information obtained from a blockchain certificate system, and to perform identity verification on the biometric features and digital certificate information based on the identity information and job qualification information carried in the electronic job permit request. The device verification module is used to obtain the status information of each power device in the substation when the identity verification is successful, and to generate the device operation status based on the status information; the device operation status is used to characterize the operable status of the corresponding power device. The constraint generation module is used to obtain the real-time location of the operator and generate spatial constraints by combining the real-time location with the operating status of the equipment; the spatial constraints are used to limit the range of activity of the operator.

8. A computer device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that, When the processor executes the computer program, it implements the steps of the method according to any one of claims 1 to 6.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

10. A computer program product, comprising a computer program, characterized in that, When the computer program is executed by a processor, it implements the steps of the method according to any one of claims 1 to 6.

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