Intelligent key box matched with electric power system

Abstract

The invention provides an intelligent key box matched with an electric power system, the intelligent key box is provided with an anti-damage box body, the box body is provided with a multi-identity authentication module, and a vibration sensor, a position sensor, an alarm module, a wireless communication module, a power supply module and a key access module are installed in the box body; the box body is matched with a remote management system; the multi-identity authentication module integrates face recognition, RFID card swiping and password input unlocking, adopts a Bayesian reasoning algorithm, realizes flexible identity authentication by dynamically updating the confidence coefficient of each authentication mode, and also has an emergency manual or remote unlocking function; the key storing and taking module is provided with a plurality of execution units and can set authority for each stored key and detect the storing and taking state of the key; the alarm system of the intelligent key box integrates multiple detection modes to supervise the key box, and the installed alarm module can comprehensively monitor whether the box body is illegally operated, artificially damaged or moved without authorization.

Description

Technical Field

[0001] The invention relates to the technical field of power system safety management, and in particular to a smart key box supporting a power system. Background Art

[0002] In the power system, the safety management and maintenance of power equipment is an important part of ensuring the stable operation of power supply. Since the operation of power equipment usually involves a large number of key safety control devices, such as switch cabinets and substation control rooms, it is crucial to ensure that the use of these devices is limited to authorized personnel. The traditional approach is to control the operation rights of equipment through physical keys, but the existing key management methods often have many problems, especially in terms of security and management efficiency.

[0003] At present, key management in power systems usually relies on manual management, that is, keys are stored in designated locations or ordinary key boxes, and authorized personnel access keys by manual registration or using simple password locks. This method has the hidden danger of insufficient security and lacks effective identity authentication methods. Anyone may enter the key equipment area by obtaining keys, increasing the risk of equipment misoperation. In addition, traditional key boxes cannot achieve real-time monitoring in management. When keys are stolen or illegally taken, managers often cannot know in time, delaying the opportunity to deal with safety hazards. For widely distributed power equipment areas, the management difficulty is further increased. The existing key management method is difficult to meet the needs of daily maintenance and emergency operations in terms of efficiency and security. In addition, the security requirements of power equipment areas are extremely high. Once the key box is forcibly destroyed or illegally accessed, it may directly endanger the safe operation of power facilities. Existing key management systems generally lack intelligent alarm and anti-theft functions. When a security incident occurs, managers cannot obtain alarm information and respond in the first time. Some existing technologies attempt to use electronic locks, password locks or card swiping technologies (such as RFID) to improve the security of key management, but these technologies mostly rely on a single authentication method and are difficult to meet the high-standard security requirements of power systems. In addition, existing systems usually lack remote monitoring capabilities and cannot effectively monitor the key usage of the equipment and handle emergency situations.

[0004] Based on the shortcomings of these existing technologies, the inventor proposed an intelligent key box for the power system according to the management needs of the power system, which can integrate multiple identity authentication technologies, intelligent alarm mechanisms and anti-theft functions, thereby ensuring that the key box is safer to use and more efficient to manage, meeting the high requirements of the power system for security and management convenience. Summary of the invention

[0005] In order to solve the above technical problems, the present invention proposes an intelligent key box supporting the power system, which integrates face recognition, RFID card swiping and password input unlocking by setting multiple identity authentication modules, adopts Bayesian reasoning algorithm, dynamically updates the confidence of each authentication method, realizes flexible identity authentication, and also has emergency manual or remote unlocking; the key access module is set to set multiple execution units, which can set permissions for each stored key and detect its access status; the alarm system of the intelligent key box is set to combine multiple detection methods to supervise the key box, and the alarm module installed can comprehensively monitor whether the box is illegally operated, damaged or moved without authorization, so as to ensure that the key box is used more safely and managed more efficiently, meeting the high requirements of the power system for security and management convenience.

[0006] To achieve the above object, the technical solution adopted by the present invention is:

[0007] A smart key box for an electric power system includes a box body, a multiple identity authentication module, a vibration sensor, a position sensor, an alarm module, a wireless communication module, a remote management system, a key access module and a power module, and is characterized in that: the smart key box is provided with an anti-destruction box body, the multiple identity authentication modules are arranged on the left front side of the box body, the key access module is arranged inside the box body, the vibration sensor, the position sensor and the power module are arranged on the bottom of the box body, the wireless communication module is installed on the right side inside the box body, and the box body is equipped with a remote management system; the alarm system of the smart key box combines multiple detection methods to supervise the key box, and the alarm module installed therein can comprehensively monitor whether the box body is illegally operated, damaged or moved without authorization, and when an abnormality is detected, the sound and light alarm in the alarm module is triggered and the alarm information is sent to the remote management system.

[0008] Furthermore, the smart key box and alarm system are equipped with a multiple identity authentication module, which integrates face recognition, RFID card swiping and password input unlocking, and adopts a Bayesian reasoning algorithm to dynamically update the confidence of each authentication method to achieve flexible identity authentication. It also has emergency manual or remote unlocking.

[0009] Furthermore, the smart key box and alarm system are provided with a vibration sensor and a position sensor, which detect whether the vibration exceeds the set safety threshold and whether the position is illegally moved through a particle filtering algorithm. The specific algorithm steps are as follows:

[0010] Step 1: Initialize particles; generate N particles, and the initial state of each particle is randomly generated from the initial state distribution:

[0011]

[0012] Step 2: State prediction: Update particle state according to the system model:

[0013]

[0014] in: is the process noise;

[0015] Step 3: According to the sensor observation value z k Update the weight of each particle:

[0016]

[0017] in: is the likelihood function of the observation model;

[0018] Step 4: Resample according to the weights of the particles, retain high-weight particles, and discard low-weight particles; calculate the state estimate of the system through the weighted average:

[0019]

[0020] Step 5: When the system state estimation value exceeds the set threshold, an alarm is triggered.

[0021] Furthermore, the smart key box and alarm system are provided with an alarm module, in which a high-decibel speaker and a high-brightness LED lamp are installed, and the alarm module is connected and linked with a multiple identity authentication module, a vibration sensor, a position sensor and a wireless communication module.

[0022] Furthermore, the smart key box and alarm system are provided with a key access module, and the key access module is provided with multiple execution units, which can set permissions for each stored key and detect its access status. The execution unit of the key access module is controlled by an electromagnetic lock and a mechanical lock, and the opening authority of the key unit is judged in combination with the identity authentication result.

[0023] Furthermore, the smart key box and alarm system are equipped with a remote management system, which is the management center of the smart key box and runs based on a cloud platform and a local area network system. Managers can remotely monitor and operate the box through computers or mobile devices. The system can display the status of all smart key boxes in real time, including current key usage, box location, and alarm records. At the same time, managers can set key usage permissions through the system and assign access rights to different users. The system also provides data storage functions to facilitate later review or analysis of usage records. The remote management system can effectively improve the transparency and control of key management, especially in large-scale power systems where equipment is widely distributed.

[0024] Furthermore, the smart key box and the alarm system are provided with a multiple identity authentication module, and the multiple identity authentication module adopts a Bayesian reasoning algorithm. The specific steps of adopting the Bayesian reasoning algorithm are:

[0025] Step 1: Initialize the prior probability and set the initial prior probability for each identity authentication method:

[0026] P(H1)=0.6, P(H2)=0.3, P(H3)=0.1

[0027] Among them: H1 is face recognition;

[0028] H2 is RFID card swiping;

[0029] H3 is the password input;

[0030] Step 2: Calculate the likelihood value of the observed data based on the result of each user authentication; if the face recognition passes and the RFID card swiping fails, the likelihood values ​​are:

[0031] P(E1|H1)=0.9, P(E2|H2)=0.2

[0032] Among them: E1 and E2 are the results of face recognition and RFID card swiping respectively;

[0033] Step 3: Use the Bayesian formula to calculate the posterior probability of each authentication method:

[0034]

[0035] And so on, calculate the posterior probability of other authentication methods;

[0036] Step 4: Calculate the probability of the final identity authentication passing based on the posterior probabilities of all authentication methods:

[0037]

[0038] Step 5: When the joint posterior probability is greater than the preset threshold, the identity authentication is successful.

[0039] The benefits of this application are:

[0040] 1. The smart key box and alarm system have multiple identity authentication functions, including but not limited to face recognition, RFID card authentication and password input. Users need to pass multiple authentications when accessing keys, thus ensuring that only authorized personnel can obtain keys; the multi-level authentication method greatly improves the security of the system, prevents unauthorized personnel from obtaining keys, and reduces the risk of misoperation of power equipment;

[0041] 2. The smart key box and alarm system use multiple identity authentication, which not only improves security, but also allows flexible configuration of permissions for different devices and areas, achieving more refined management;

[0042] 3. The smart key box and alarm system are equipped with a variety of sensors, which can promptly send out alarm information when the box is illegally opened or moved, and notify the management personnel to handle it in time;

[0043] 4. The interior of the smart key box and alarm system box is designed as multiple independent key storage units. Each unit can store keys with different permissions as needed, making it convenient to manage multiple keys in one box. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 It is a schematic diagram of the structure of the present invention;

[0045] Figure 2 It is a schematic diagram of the working process of the present invention.

[0046] The following are marked in the figure: 1. Box; 2. Multiple identity authentication module; 3. Vibration sensor; 4. Position sensor; 5. Alarm module; 6. Wireless communication module; 7. Remote management system; 8. Key access module; 9. Power module. DETAILED DESCRIPTION

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0048] like Figure 1-2 As shown, a smart key box for a power system is shown, including a box body 1, a multiple identity authentication module 2, a vibration sensor 3, a position sensor 4, an alarm module 5, a wireless communication module 6, a remote management system 7, a key access module 8 and a power module 9, as shown Figure 1As shown, the smart key box is provided with an anti-destruction box body 1, which is made of high-strength steel in one piece. A multiple identity authentication module 2 is arranged on the left front side of the box body 1. The multiple identity authentication module 2 integrates face recognition, RFID card swiping and password input unlocking, and adopts Bayesian reasoning algorithm. By dynamically updating the confidence of each authentication method, flexible identity authentication is achieved, and it also has emergency manual or remote unlocking; a key access module 8 is arranged inside the box body 1, and the key access module 8 is provided with multiple execution units, which can set permissions for each stored key and detect its access status. The execution unit of the key access module 8 is controlled by an electromagnetic lock and a mechanical lock, and judges the opening right of the key unit in combination with the identity authentication result. The key access module 8 is equipped with a key status monitoring function, which can detect whether the key is returned to its place and Whether it has been illegally taken; a vibration sensor 3, a position sensor 4 and a power module 9 are set at the bottom of the box 1, and a wireless communication module 6 is installed on the right side of the box 1. The wireless communication module 6 can communicate with the remote management system 7 through Wi-Fi or 4G / 5G wireless network; the module can transmit the operating status, alarm information and key access records of the key box in real time to ensure that the management personnel can grasp the working status of the system at any time; the wireless communication module also supports receiving remote commands, and the management personnel can use this module to remotely operate the key box, such as locking or unlocking in an emergency; the power module 9 adopts a dual power supply mode of AC power and backup lithium battery; when the AC power is normal, the system runs on the AC power; when the power is off or the power is interrupted, the power module will automatically switch to the backup lithium battery to ensure that the key box can continue to work for a period of time. The power module is also equipped with an uninterruptible power supply system to prevent data loss or system abnormality caused by sudden power outages.

[0049] The box 1 is equipped with a remote management system 7; the smart key box alarm system is combined with a variety of detection methods to supervise the key box, and the alarm module 5 installed therein can comprehensively monitor whether the box is illegally operated, damaged or moved without authorization, etc. When an abnormality is detected, the sound and light alarm in the alarm module 5 is triggered and the alarm information is sent to the remote management system 7; the smart key box and the alarm system are provided with a vibration sensor 3 and a position sensor 4. The vibration sensor 3 and the position sensor 4 are abnormally detected by a particle filtering algorithm to detect whether the vibration exceeds the set safety threshold and whether the position is illegally moved. The specific algorithm steps are as follows:

[0050] Step 1: Initialize particles; generate N particles, and the initial state of each particle is randomly generated from the initial state distribution:

[0051]

[0052] Step 2: State prediction: Update particle state according to the system model:

[0053]

[0054] in: is the process noise;

[0055] Step 3: According to the sensor observation value z k Update the weight of each particle:

[0056]

[0057] in: is the likelihood function of the observation model;

[0058] Step 4: Resample according to the weights of the particles, retain high-weight particles, and discard low-weight particles; calculate the state estimate of the system through the weighted average:

[0059]

[0060] Step 5: When the estimated value of the system state exceeds the set threshold, an alarm is triggered;

[0061] The smart key box and alarm system shown in the figure are provided with an alarm module 5, in which a high-decibel speaker and a high-brightness LED lamp are installed. The alarm module 5 is connected and linked with the multiple identity authentication module 2, the vibration sensor 3, the position sensor 4 and the wireless communication module 6. When an alarm occurs, an alarm sound and a flash can be emitted to alert nearby managers and scare away illegal operators.

[0062] The smart key box and alarm system shown are equipped with a remote management system 7. The remote management system 7 shown is the management center of the smart key box, which runs on a cloud platform and a local area network system. The management personnel can remotely monitor and operate it through a computer or mobile device. It can display the status of all smart key boxes in real time, including current key usage, box location, and alarm records. At the same time, the management personnel can set key usage permissions through the system and assign access rights to different users. The system also provides data storage function to facilitate later review or analysis of usage records. The remote management system can effectively improve the transparency and control of key management, especially in large-scale power systems with widely distributed equipment areas. The remote management system also allows managers to unlock or lock key boxes through remote operation, which is particularly suitable for widely distributed power equipment areas, reducing the complexity of management and greatly improving the efficiency of daily operation and maintenance and emergency response.

[0063] The smart key box and alarm system shown in the figure are provided with a multiple identity authentication module 2, and the multiple identity authentication module 2 shown in the figure adopts the Bayesian reasoning algorithm. The specific steps of adopting the Bayesian reasoning algorithm shown in the figure are:

[0064] Step 1: Initialize the prior probability and set the initial prior probability for each identity authentication method:

[0065] P(H1)=0.6, P(H2)=0.3, P(H3)=0.1

[0066] Among them: H1 is face recognition;

[0067] H2 is RFID card swiping;

[0068] H3 is the password input;

[0069] Step 2: Calculate the likelihood value of the observed data based on the result of each user authentication; if the face recognition passes but the RFID card swipe fails, the likelihood values ​​are:

[0070] P(E1|H1)=0.9, P(E2|H2)=0.2

[0071] Among them: E1 and E2 are the results of face recognition and RFID card swiping respectively;

[0072] Step 3: Use the Bayesian formula to calculate the posterior probability of each authentication method:

[0073]

[0074] And so on, calculate the posterior probability of other authentication methods;

[0075] Step 4: Calculate the probability of the final identity authentication passing based on the posterior probabilities of all authentication methods:

[0076]

[0077] Step 5: When the joint posterior probability is greater than the preset threshold, the identity authentication is successful.

[0078] like Figure 2As shown, the first step when using the system is to start and initialize the system, and then enter the user system through the remote management system or the multiple identity authentication module set on the box to activate it, and at the same time set up multiple identity authentication, connect to the network and enter related management requirements. After the setting is completed, it can be put into use. After the setting is completed, the alarm module, vibration sensor, position sensor and key access module in the box will automatically enter the working state; in subsequent use, the multiple identity authentication module can be used to verify the person who needs to take the key. After the verification is successful, the storage block of the corresponding key storage module will be unlocked, and the information will be recorded after the key is taken, and the box will be closed. When the key is returned, the person will be verified again, and the key will also be recorded when it is returned to the key access module. Record relevant information, close the box after completion, and the system is in standby mode; when the box detects destructive opening or unauthorized movement, the high-decibel speaker installed in the alarm module issues a warning message, and the high-brightness LED light is debugged to flash, reminding nearby managers to deal with it in time and scare off illegal operators. At this time, the alarm module sends an alarm message to the remote management system through the wireless communication module, notifying the managers to deal with it in time. After the box alarm is lifted, it can be restored through on-site recovery or remote management system, and the management log in the remote management system records relevant information; in an emergency, the box can be opened manually or unlocked remotely through the emergency code, effectively improving the key management efficiency and level of the power station of the power system, and ensuring the safe and stable operation of the system. The smart key box and alarm system shown can effectively realize the intelligent management of keys; through multiple identity authentication, security is improved, and unauthorized personnel are prevented from misoperation. It can also monitor the use of keys in real time, issue illegal operation alarms in time, and realize cross-regional centralized management through the remote management system; this intelligent key box solution is particularly suitable for the management of key equipment in the power system, ensuring the safety of equipment operation and the improvement of management efficiency.

[0079] The above description is only a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any modification or equivalent change made based on the technical essence of the present invention still falls within the scope of protection required by the present invention.

Claims

1. A smart key box for a power system, comprising a box body (1), a multiple identity authentication module (2), a vibration sensor (3), a position sensor (4), an alarm module (5), a wireless communication module (6), a remote management system (7), a key access module (8) and a power module (9), characterized in that: The smart key box is provided with an anti-destruction box (1), a multiple identity authentication module (2) is provided on the left side of the front side of the box (1), a key access module (8) is provided inside the box (1), a vibration sensor (3), a position sensor (4) and a power module (9) are provided at the bottom of the box (1), a wireless communication module (6) is installed on the right side inside the box (1), and the box (1) is equipped with a remote management system (7); the smart key box alarm system combines multiple detection methods to supervise the key box, and the alarm module (5) installed therein can comprehensively monitor whether the box is illegally operated, artificially damaged or moved without authorization, etc., and when an abnormality is detected, the sound and light alarm in the alarm module (5) is triggered and the alarm information is sent to the remote management system (7).

2. The smart key box for power system according to claim 1, characterized in that: The smart key box and alarm system are provided with a multiple identity authentication module (2), which integrates face recognition, RFID card swiping and password input unlocking, adopts a Bayesian reasoning algorithm, and dynamically updates the confidence of each authentication method to achieve flexible identity authentication, while also having emergency manual or remote unlocking.

3. The smart key box for power system according to claim 1, characterized in that: The smart key box and alarm system are provided with a vibration sensor (3) and a position sensor (4). The vibration sensor (3) and the position sensor (4) detect abnormalities through a particle filtering algorithm to determine whether the vibration exceeds a set safety threshold and whether the position is illegally moved. The specific algorithm steps are as follows: Step 1: Initialize particles; generate N particles, and the initial state of each particle is randomly generated from the initial state distribution: Step 2: State prediction: Update particle state according to the system model: in: is the process noise; Step 3: According to the sensor observation value z k Update the weight of each particle: in: is the likelihood function of the observation model; Step 4: Resample according to the weights of the particles, retain high-weight particles, and discard low-weight particles; calculate the state estimate of the system through the weighted average: Step 5: When the system state estimation value exceeds the set threshold, an alarm is triggered.

4. The smart key box for power system according to claim 1, characterized in that: The smart key box and alarm system are provided with an alarm module (5), in which a high-decibel speaker and a high-brightness LED lamp are installed, and the alarm module (5) is connected and linked with a multiple identity authentication module (2), a vibration sensor (3), a position sensor (4) and a wireless communication module (6).

5. The smart key box for power system according to claim 1, characterized in that: The intelligent key box and alarm system are provided with a key access module (8), and the key access module (8) is provided with a plurality of execution units, which can set permissions for each stored key and detect its access status. The execution units of the key access module (8) are controlled by electromagnetic locks and mechanical locks, and the opening authority of the key unit is determined in combination with the identity authentication result.

6. The smart key box for power system according to claim 1, characterized in that: The smart key box and alarm system are provided with a remote management system (7), which is the management center of the smart key box and is operated based on a cloud platform and a local area network system. The management personnel can remotely monitor and operate the smart key box through a computer or a mobile device. The smart key box can display the status of all smart key boxes in real time, including the current key usage, box location, and alarm records. At the same time, the management personnel can set key usage permissions through the system and assign access permissions to different users. The system also provides a data storage function to facilitate the later review or analysis of usage records. The remote management system can effectively improve the transparency and control of key management, especially in large-scale power systems with widely distributed equipment areas.

7. The smart key box for power system according to claim 2, characterized in that: The smart key box and the alarm system are provided with a multiple identity authentication module (2), and the multiple identity authentication module (2) adopts a Bayesian reasoning algorithm. The specific steps of adopting the Bayesian reasoning algorithm are: Step 1: Initialize the prior probability and set the initial prior probability for each identity authentication method: P(H1)=0.6, P(H2)=0.3, P(H3)=0.1 Among them: H1 is face recognition; H2 is RFID card swiping; H3 is the password input; Step 2: Calculate the likelihood value of the observed data based on the result of each user authentication; if the face recognition passes and the RFID card swiping fails, the likelihood values ​​are: P(E1|H1)=0.9, P(E2|H2)=0.2 Among them: E1 and E2 are the results of face recognition and RFID card swiping respectively; Step 3: Use the Bayesian formula to calculate the posterior probability of each authentication method: And so on, calculate the posterior probability of other authentication methods; Step 4: Calculate the probability of the final identity authentication passing based on the posterior probabilities of all authentication methods: Step 5: When the joint posterior probability is greater than the preset threshold, the identity authentication is successful.

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