Equipment fault detection system based on current fingerprint technology

Abstract

The invention discloses an equipment fault detection system based on a current fingerprint technology, which belongs to the technical field of equipment fault detection and comprises a central control module, an identification module, a current fingerprint setting module, a current fingerprint database, an equipment verification module, a power judgment module, an equipment fault detection module, a power monitoring module and a wireless gateway. Through the mode, the power monitoring module is used for detecting the power of the line, judging whether the equipment can be connected to the line or not and ensuring the safety of the line, the identification module is used for detecting the equipment, setting a current fingerprint to carry out feature identification on known equipment, and setting a power supply threshold e to judge whether unknown equipment can be connected to the line or not; the operation safety of the equipment is ensured; according to the invention, the equipment is detected in real time through the identification module, and corresponding processing measures are taken after a fault occurs.

Description

Technical Field

[0001] The present invention relates to the technical field of equipment fault detection, and in particular to an equipment fault detection system based on current fingerprint technology. Background Art

[0002] An equipment fault detection device is installed in the factory of the enterprise to monitor the electrical equipment in the factory. The device detects parameter changes in the circuit, thereby protecting the equipment and preventing damage to other equipment due to a failure of a certain device.

[0003] Current fingerprint technology can collect, analyze and identify multiple features such as current spectrum and waveform. Because the internal structure of most electrical appliances of different categories will be different, the impact on the line current and voltage waveform will also be different. These differences bring about the possibility of identification.

[0004] For example, Chinese patent CN101840233A discloses an equipment fault detection device and an equipment fault detection method, which locates the fault by searching the expert library module for the fault point corresponding to the analyzed fault code according to the analyzed fault code information; and finds the fault solution information corresponding to the fault point through the experience library module to eliminate the fault of the current detected equipment.

[0005] However, the above technology has the following problems: it is impossible to monitor and manage the line when the equipment is installed, it is impossible to ensure the safety of the equipment when it is connected to the line, and it is impossible to take corresponding effective measures after different types of equipment fail.

[0006] Based on this, the present invention designs an equipment fault detection system based on current fingerprint technology to solve the above problems. Summary of the invention

[0007] In view of the above-mentioned shortcomings of the prior art, the present invention provides an equipment fault detection system based on current fingerprint technology.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] An equipment fault detection system based on current fingerprint technology includes a central control module, an identification module, a current fingerprint setting module, a current fingerprint database, an equipment verification module, a power judgment module, an equipment fault detection module, a power monitoring module and a wireless gateway;

[0010] The central control module, identification module, equipment fault detection module, and power monitoring module are all wirelessly connected to the wireless gateway;

[0011] The identification module is a smart socket, which is provided in multiple and installed on each socket, and is used to detect the standby power a1, rated power a2 and real-time power a3 of the device and send them to the device fault detection module and the power monitoring module through the wireless gateway;

[0012] Several work areas are set up in the factory building, and each work area is equipped with a main switch s1. The main switch s1 controls multiple branches, and the branches are connected in parallel. A sub-switch w1 is provided on each branch, and multiple sockets are connected in parallel on each branch. At this time, the total rated power of the devices in the same branch power socket is b, and the rated power of each device is obtained through the identification module; for example, there are three devices on a branch, and the rated powers of the three devices are A1, A2 and A3 respectively, and b=A1+A2+A3;

[0013] The power monitoring module is used to receive the standby power a1 and rated power a2 of the device plugged into the socket, and to receive the standby power a1 of the device newly plugged into the socket. 1新 and rated power a 2新 , determine the total rated power b of the branch where the newly inserted device is located (without taking into account the a of the new device this time) 2新 )+a 2新 The relationship between the current fingerprint setting module and the branch power limit threshold r is then sent to the dispatcher;

[0014] The current fingerprint setting module is used to receive the data information of the standby power a1 and the rated power a2 sent by the power monitoring module, and set the current fingerprint to D(a1, a2), and then upload D(a1, a2) to the device verification module;

[0015] The current fingerprint database is used to store the current fingerprint and equipment tag information of the equipment that has been entered by the enterprise;

[0016] A device verification module, used to receive D(a1, a2) and determine whether D(a1, a2) exists in the current fingerprint database;

[0017] If it exists, the device verification module sends the device tag information and power supply result instruction to the central control module;

[0018] If it does not exist, the equipment verification module sends the rated power a2 to the power judgment module;

[0019] The equipment verification module includes a standby power detection unit, a rated power detection unit and a result output unit;

[0020] The standby power detection unit is used to receive D(a1, a2) and the current fingerprint data in the current fingerprint database, and determine whether D(a1, *) exists in the current fingerprint database, where * is an arbitrary value;

[0021] If it exists, the standby power detection unit uploads D(a1, a2) to the rated power detection unit;

[0022] If it does not exist, the standby power detection unit uploads the rated power a2 to the power judgment module;

[0023] The rated power detection unit receives D(a1, a2) and determines whether D(a1, a2) exists in the current fingerprint database;

[0024] If it exists, the rated power detection unit uploads the judgment result of the existence of the device to the result output unit;

[0025] If it does not exist, the standby power detection unit uploads the rated power a2 to the power judgment module;

[0026] A result output unit is used to receive the judgment result of the rated power detection unit when the rated power detection unit determines that D(a1, a2) exists in the current fingerprint database, and at the same time receive the device label information compared with the current fingerprint database, and output the device label information and the power supply instruction;

[0027] And when receiving the judgment result of the power judgment module, output the instruction of powering on or off.

[0028] The power judgment module is used to receive the judgment results of the standby power detection unit and the rated power detection unit, and judge whether a2 is greater than or equal to the power supply threshold e, and send the judgment result to the result output unit;

[0029] If a2≥e, the result output unit outputs a power-off instruction to the central control module, and the central control module controls the identification module to not supply power;

[0030] If a2<e, the result output unit outputs a power supply instruction to the central control module, and the central control module controls the identification module to supply power;

[0031] The equipment fault detection module is used to receive the real-time power collected in the identification module, generate a power change diagram to analyze the equipment, determine whether the equipment has a fault, and take effective processing measures based on the faulty equipment. The equipment fault detection module is communicated with the central control module.

[0032] Furthermore, the identification module includes a metering unit and a communication unit;

[0033] A metering unit, used for collecting the standby power a1, the rated power a2 and the real-time power a3 and uploading them to the communication unit, the metering unit is electrically connected to the communication unit;

[0034] A communication unit is used to receive the standby power a1, the rated power a2 and the real-time power a3 and upload the standby power a1 and the rated power a2 to the power monitoring module through the wireless gateway, and upload the real-time power a3 to the equipment fault detection module. The communication unit is connected to the wireless gateway by wireless communication;

[0035] Each communication unit is provided with a corresponding IP address, and the communication unit also uploads its own IP address to the central control module through the wireless gateway. After receiving the IP address of the communication unit, the central control module converts it into a position point in the spatial coordinate system.

[0036] Furthermore, the power monitoring module includes a power determination unit, a branch determination unit, a space coordinate retrieval unit and a socket position push unit;

[0037] The power judgment unit is used to receive the data information of the standby power a1 and the rated power a2, and judge the relationship between the total rated power b+a2 of the branch and the branch power limit threshold r;

[0038] If b+a2<r, the power judgment unit uploads the standby power a1 and rated power a2 of the device to the current fingerprint setting module;

[0039] If b+a2≥r, the power judgment unit sends the rated power a2 to the branch judgment unit;

[0040] A branch judging unit, used for receiving a rated power a2 and judging whether there is a branch with b+a2<r;

[0041] If it exists, the branch judgment unit sends the judgment result to the space coordinate retrieval unit;

[0042] If it does not exist, the branch judgment unit outputs a command message of no power supply and sends it to the dispatcher;

[0043] A spatial coordinate retrieval unit receives the judgment result, retrieves the spatial coordinate position of the branch that meets b+a2<r, and sends it to the position push unit;

[0044] The position push unit is used to receive the spatial coordinate position of the branch, and select the spatial coordinate of the identification module closest to the current detection position and send it to the dispatcher.

[0045] Furthermore, the equipment label information includes Class I electrical appliances, Class II electrical appliances, and Class III electrical appliances.

[0046] Furthermore, one category of electrical appliances is dangerous electrical appliances, such as electric motors, electric irons, hair dryers, power tools, etc.;

[0047] Class II electrical appliances are electrical equipment that have insulation measures for the parts that dispatchers can touch, such as refrigerators, stereos, projectors, etc.

[0048] Category 3 electrical appliances use a safe and low-voltage power supply for the entire electrical equipment, such as USB chargers, mobile phone chargers, etc.

[0049] Furthermore, the equipment fault detection module includes a data analysis unit, an equipment fault processing unit and an alarm unit;

[0050] A data analysis unit, which is connected to the wireless gateway via wireless communication, and is used to receive real-time power data information and generate a power change graph to make a power change judgment;

[0051] If the power of the equipment suddenly increases and then becomes zero, it indicates that the equipment is faulty, and the faulty equipment is sent to the equipment fault processing unit;

[0052] The equipment fault processing unit receives the faulty equipment information and the equipment tag information in the central control module, processes the faulty equipment, and uploads the processing method to the central control module;

[0053] The alarm unit is used to receive command information from the central control module and send alarm information to the dispatcher.

[0054] Furthermore, the alarm unit is a siren and a display screen.

[0055] Furthermore, the alarm and the display screen are both electrically connected to the central control module.

[0056] Furthermore, the device fault processing unit processes devices with different device tag information in the following manner:

[0057] For a type of electrical appliance that is damaged in a branch, the equipment fault processing unit outputs a command to turn off the main switch s1 to the central control module. The central control module receives the command information and notifies the dispatcher to turn off the main switch s1 through the alarm unit.

[0058] For damaged Class II electrical appliances in the branch, the equipment fault processing unit outputs an instruction to close the branch switch w1 where the Class II electrical appliances are located to the central control module. The central control module receives the instruction information and notifies the dispatcher to close the branch switch w1 through the alarm unit.

[0059] For the three types of electrical appliances damaged in the branch and the equipment that is powered by a2<e as determined by the power judgment module, the equipment fault processing unit outputs an instruction to shut down the equipment itself to the central control module. The central control module receives the instruction information and controls the corresponding identification module to shut down the power supply.

[0060] Furthermore, it also includes an audit module, which is used to output a no-power-supply instruction in the result output unit, and the dispatcher can send a power-supply appeal instruction to the central control module, and the central control module controls the identification module to start power supply.

[0061] Compared with the prior art, the present invention has the following beneficial effects: 1. When the dispatcher inserts the device into the identification module, the power of the line is detected by the power monitoring module to determine whether the device can be connected to the line, thereby ensuring the safety of the line;

[0062] 2. The present invention detects the device through the identification module, sets the current fingerprint to identify the characteristics of the known device, and sets the power supply threshold e to determine whether the unknown device can access the line, thereby ensuring the safety of the device operation;

[0063] 3. The present invention performs real-time detection of the equipment through the identification module, and after a device with different equipment tag information fails, the equipment failure processing unit takes corresponding processing measures according to the equipment tag information. BRIEF DESCRIPTION OF THE DRAWINGS

[0064] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0065] Figure 1 A connection block diagram of a device fault detection system based on current fingerprint technology of the present invention;

[0066] Figure 2 A connection block diagram of a device verification module of the present invention;

[0067] Figure 3 A connection block diagram of a power monitoring module of the present invention;

[0068] Figure 4 A connection block diagram of the equipment fault detection module of the present invention;

[0069] Figure 5 It is a distribution diagram of the working area identification module of the present invention;

[0070] Figure 6 It is a schematic block diagram of the identification module of the present invention.

[0071] The numbers in the figure represent:

[0072] 1. Central control module; 2. Identification module; 21. Metering unit; 22. Communication unit; 3. Current fingerprint setting module; 4. Current fingerprint database; 5. Equipment verification module; 51. Standby power detection unit; 52. Rated power detection unit; 53. Result output unit; 6. Power judgment module; 7. Audit module; 8. Equipment fault detection module; 81. Data analysis unit; 82. Equipment fault processing unit; 83. Alarm unit; 9. Power monitoring module; 91. Power judgment unit; 92. Branch judgment unit; 93. Space coordinate retrieval unit; 94. Location push unit; 10. Wireless gateway. DETAILED DESCRIPTION

[0073] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0074] Embodiment 1: In some embodiments, please refer to the drawings of the specification Figure 1-Figure 6 , an equipment fault detection system based on current fingerprint technology, comprising a central control module 1, an identification module 2, a current fingerprint setting module 3, a current fingerprint database 4, an equipment verification module 5, a power judgment module 6, an equipment fault detection module 8, a power monitoring module 9 and a wireless gateway 10;

[0075] The central control module 1, the identification module 2, the equipment fault detection module 8, and the power monitoring module 9 are all wirelessly connected to the wireless gateway 10;

[0076] The identification module 2 is a smart socket, which is provided in multiple and installed on each socket, and is used to detect the standby power a1, rated power a2 and real-time power of the device and send them to the device fault detection module 8 and the power monitoring module 9 through the wireless gateway 10;

[0077] Preferably, the identification module 2 includes a metering unit 21 and a communication unit 22;

[0078] The metering unit 21 is used to collect the standby power a1, the rated power a2 and the real-time power a3 and upload them to the communication unit 22. The metering unit 21 is electrically connected to the communication unit 22;

[0079] The communication unit 22 is used to receive the standby power a1, the rated power a2 and the real-time power a3 and upload the standby power a1 and the rated power a2 to the power monitoring module 9 through the wireless gateway 10, and upload the real-time power a3 to the equipment fault detection module 8. The communication unit 22 is connected to the wireless gateway 10 by wireless communication;

[0080] Each communication unit 22 is provided with a corresponding IP address, and the communication unit 22 also uploads its own IP address to the central control module 1 through the wireless gateway 10. After receiving the IP address of the communication unit 22, the central control module 1 converts it into a position point in the spatial coordinate system;

[0081] Several work areas are set up in the factory building, and each work area is equipped with a main switch s1. The main switch s1 controls multiple branches, and the branches are connected in parallel. A sub-switch w1 is provided on each branch, and multiple sockets are connected in parallel on each branch. At this time, the total rated power of the devices in the same branch power socket is b, and the rated power of each device is obtained by the identification module 2; for example, there are three devices on a branch, and the rated powers of the three devices are A1, A2 and A3 respectively, and b=A1+A2+A3;

[0082] The power monitoring module 9 is used to receive the standby power a1 and the rated power a2 of the device plugged into the socket, and to receive the standby power a1 and the rated power a2 of the device newly plugged into the socket. 1新 and rated power a 2新 , determine the total rated power b of the branch where the newly inserted device is located (without taking into account the a of the new device this time) 2新 )+a 2新 The relationship between the current fingerprint setting module 3 and the branch power limit threshold r, and then send the judgment result to the current fingerprint setting module 3 or the dispatcher;

[0083] When the dispatcher inserts the device into the identification module 2, the power monitoring module 9 determines the total rated power b+a of the branch where the device is located. 2新 The relationship between the power limit threshold r of the branch circuit determines whether the device can access the line and ensure the safety of the line;

[0084] Preferably, the power monitoring module 9 includes a power determination unit 91, a branch determination unit 92, a space coordinate retrieval unit 93 and a socket position push unit 94;

[0085] The power judgment unit 91 is used to receive the data information of the standby power a1 and the rated power a2, and judge the relationship between the total branch rated power b+a2 and the branch power limit threshold r;

[0086] If b+a2<r, the power judgment unit 91 uploads the standby power a1 and the rated power a2 of the device to the current fingerprint setting module 3;

[0087] If b+a2≥r, the power judgment unit 91 sends the rated power a2 to the branch judgment unit 92;

[0088] A branch judging unit 92, used for receiving a rated power a2, and judging whether there is a branch with b+a2<r;

[0089] If it exists, the branch judgment unit 92 sends the judgment result to the space coordinate retrieval unit 93;

[0090] If it does not exist, the branch judgment unit 92 outputs a command message of not supplying power to the dispatcher;

[0091] The spatial coordinate retrieval unit 93 receives the judgment result, retrieves the spatial coordinate position of the branch that meets b+a2<r, and sends it to the position pushing unit 94;

[0092] The position push unit 94 is used to receive the spatial coordinate position of the branch, and select the spatial coordinate of the identification module 2 closest to the current detection position and send it to the dispatcher.

[0093] The current fingerprint setting module 3 is used to receive the data information of the standby power a1 and the rated power a2 sent by the power monitoring module 9, and set the current fingerprint to D(a1, a2), and then upload D(a1, a2) to the device verification module 5;

[0094] The current fingerprint database 4 is used to store the current fingerprint and device tag information of the devices that have been entered by the enterprise;

[0095] Preferably, the equipment label information includes Class I electrical appliances, Class II electrical appliances and Class III electrical appliances.

[0096] Preferably, one type of electrical appliances are dangerous electrical appliances, such as electric motors, electric irons, hair dryers, electric tools, etc.;

[0097] Class II electrical appliances are electrical equipment that have insulation measures for the parts that dispatchers can touch, such as refrigerators, stereos, projectors, etc.

[0098] Category III appliances use a safe low-voltage power supply for the entire appliance, such as USB chargers, mobile phone chargers, etc.

[0099] The device verification module 5 is used to receive D(a1, a2) and determine whether D(a1, a2) exists in the current fingerprint database 4;

[0100] If it exists, the device verification module 5 sends the device tag information and the power supply result instruction to the central control module 1;

[0101] If it does not exist, the equipment verification module 5 sends the rated power a2 to the power judgment module 6;

[0102] Preferably, the equipment verification module 5 includes a standby power detection unit 51, a rated power detection unit 52 and a result output unit 53;

[0103] The standby power detection unit 51 is used to receive D(a1, a2) and the current fingerprint data in the current fingerprint database 4, and determine whether D(a1, *) exists in the current fingerprint database 4, where * is an arbitrary value;

[0104] If it exists, the standby power detection unit 51 uploads D(a1, a2) to the rated power detection unit 52;

[0105] If it does not exist, the standby power detection unit 51 uploads the rated power a2 to the power judgment module 6;

[0106] The rated power detection unit 52 receives D(a1, a2) and determines whether D(a1, a2) exists in the current fingerprint database 4;

[0107] If it exists, the rated power detection unit 52 uploads the judgment result of the existence of the device to the result output unit 53;

[0108] If it does not exist, the standby power detection unit 51 uploads the rated power a2 to the power judgment module 6;

[0109] The result output unit 53 is used to receive the judgment result of the rated power detection unit 52 when the rated power detection unit 52 determines that D(a1, a2) exists in the current fingerprint database 4, and at the same time receive the device label information compared by the current fingerprint database 4, and output the device label information and the power supply instruction;

[0110] And when receiving the judgment result of the power judgment module 6, an instruction to supply power or not to supply power is output.

[0111] The power judgment module 6 is used to receive the judgment results of the standby power detection unit 51 and the rated power detection unit 52, and judge whether a2 is greater than or equal to the power supply threshold e, and send the judgment result to the result output unit 53;

[0112] If a2≥e, the result output unit 53 outputs a power-off instruction to the central control module 1, and the central control module 1 controls the identification module 2 to not supply power;

[0113] If a2<e, the result output unit 53 outputs a power supply instruction to the central control module 1, and the central control module 1 controls the identification module 2 to supply power;

[0114] The present invention detects the device through the identification module 2, sets the current fingerprint through the current fingerprint setting module 3 to perform feature recognition on the known device, and sets the power supply threshold e to determine whether the unknown device can access the line, which effectively ensures the safety of the device operation;

[0115] In order to deal with special situations in the factory, the audit module 7 is also included, which is used to output a no-power-supply instruction in the result output unit 53, and the dispatcher can send a power appeal instruction to the central control module 1, requesting the central control module 1 to control the identification module 2 to start power supply;

[0116] The equipment fault detection module 8 is used to receive the real-time power collected in the identification module 2, and generate a power change diagram to analyze the equipment to determine whether the equipment has a fault. The equipment fault detection module 8 is connected to the central control module 1 in communication;

[0117] Preferably, the equipment fault detection module 8 includes a data analysis unit 81, an equipment fault processing unit 82 and an alarm unit 83;

[0118] The data analysis unit 81 is connected to the wireless gateway 10 by wireless communication, and is used to receive real-time power data information and generate a power change diagram to make a power change judgment;

[0119] If the power of the device suddenly increases and then becomes zero, it indicates that the device is faulty, and the faulty device is sent to the device fault processing unit 82;

[0120] The device fault processing unit 82 receives the faulty device information and the device tag information in the central control module 1, and processes the faulty device;

[0121] The alarm unit 83 is used to receive the instruction information from the central control module 1 and send alarm information to the dispatcher.

[0122] Preferably, the alarm unit 83 is an alarm and a display screen.

[0123] Preferably, the alarm and the display screen are both electrically connected to the central control module 1 .

[0124] Preferably, for a type of electrical appliance damaged in a branch, the equipment fault processing unit 82 outputs an instruction to turn off the main switch s1 to the central control module 1, and the central control module 1 receives the instruction information and notifies the dispatcher to turn off the main switch s1 through the alarm unit 83;

[0125] For damaged Class II electrical appliances in the branch, the equipment fault processing unit 82 outputs an instruction to close the branch switch w1 of the Class II electrical appliances to the central control module 1. The central control module 1 receives the instruction information and notifies the dispatcher to close the branch switch w1 through the alarm unit 83.

[0126] For the three types of electrical appliances damaged in the branch and the devices that are powered by a2<e as determined by the power judgment module 6, the device fault processing unit 82 outputs an instruction to shut down the device itself to the central control module 1. The central control module 1 receives the instruction information and controls the corresponding identification module 2 to shut down the power supply.

[0127] The present invention performs real-time detection on the devices through the identification module 2, and after a device with different device tag information fails, the device failure processing unit 82 will take corresponding processing measures according to the device tag information.

[0128] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. Such modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device fault detection system based on current fingerprint technology, comprising a central control module (1), characterized in that: It also includes an identification module (2), a current fingerprint setting module (3), a current fingerprint database (4), an equipment verification module (5), a power judgment module (6), an equipment fault detection module (8), a power monitoring module (9) and a wireless gateway (10); The central control module (1), the identification module (2), the equipment fault detection module (8), and the power monitoring module (9) are all wirelessly connected to the wireless gateway (10); The identification module (2) is provided in plurality and is respectively installed on each socket, and is used to detect the standby power a1, rated power a2 and real-time power a3 of the device plugged into the socket and send the detected power to the device fault detection module (8) and the power monitoring module (9) via the wireless gateway (10); Several work areas are set up in the factory building. Each work area is equipped with a main switch s1. The main switch s1 controls multiple branches. The branches are connected in parallel. Each branch is equipped with a sub-switch w1. Each branch is connected in parallel with multiple sockets. At this time, the total rated power of the equipment in the same branch power socket is b. The rated power of each equipment is obtained through the identification module (2); The power monitoring module (9) is used to receive the standby power a1 and the rated power a2 of the device plugged into the socket, and to detect the standby power a1 and the rated power a2 of the device newly plugged into the socket. 1新 and rated power a 2新 , determine the total rated power b+a of the branch where the newly inserted device is located 2新 The relationship between the current fingerprint setting module (3) and the branch power limit threshold r is then sent to the dispatcher; A current fingerprint setting module (3) is used to receive data information of standby power a1 and rated power a2 sent by a power monitoring module (9), and set the current fingerprint to D(a1, a2), and then upload D(a1, a2) to a device verification module (5); A current fingerprint database (4), used to store the current fingerprint and device tag information of the devices entered by the enterprise; A device verification module (5), used for receiving D(a1, a2) and determining whether D(a1, a2) exists in the current fingerprint database (4); If it exists, the device verification module (5) sends the device tag information and the power supply result instruction to the central control module (1); If it does not exist, the equipment verification module (5) sends the rated power a2 to the power judgment module (6); The equipment verification module (5) comprises a standby power detection unit (51), a rated power detection unit (52) and a result output unit (53); A standby power detection unit (51) is used to receive D(a1, a2) and current fingerprint data in a current fingerprint database (4), and to determine whether D(a1, *) exists in the current fingerprint database (4), where * is an arbitrary value; If it exists, the standby power detection unit (51) uploads D(a1, a2) to the rated power detection unit (52); If it does not exist, the standby power detection unit (51) uploads the rated power a2 to the power judgment module (6); A rated power detection unit (52) receives D(a1, a2) and determines whether D(a1, a2) exists in the current fingerprint database (4); If it exists, the rated power detection unit (52) uploads the judgment result of the existence of the device to the result output unit (53); If it does not exist, the standby power detection unit (51) uploads the rated power a2 to the power judgment module (6); A result output unit (53) is used to receive the judgment result of the rated power detection unit (52) when the rated power detection unit (52) judges that D(a1, a2) exists in the current fingerprint database (4), and simultaneously receive the device label information compared with the current fingerprint database (4), and output the device label information and the power supply instruction; and outputting an instruction to supply power or not supply power when receiving the judgment result of the power judgment module (6); A power judgment module (6) is used to receive the judgment results of the standby power detection unit (51) and the rated power detection unit (52), and to judge whether a2 is greater than or equal to the power supply threshold e, and to send the judgment result to the result output unit (53); If a2≥e, the result output unit (53) outputs a power-off instruction to the central control module (1), and the central control module (1) controls the identification module (2) to not supply power; If a2<e, the result output unit (53) outputs a power supply instruction to the central control module (1), and the central control module (1) controls the identification module (2) to supply power; The equipment fault detection module (8) is used to receive the real-time power collected by the identification module (2), generate a power change diagram to analyze the equipment, determine whether the equipment has a fault, and take effective treatment measures according to the faulty equipment. The equipment fault detection module (8) is connected to the central control module (1) in communication.

2. The equipment fault detection system based on current fingerprint technology according to claim 1 is characterized in that: The identification module (2) comprises a metering unit (21) and a communication unit (22); A metering unit (21) is used for collecting standby power a1, rated power a2 and real-time power a3 and uploading them to a communication unit (22); the metering unit (21) is electrically connected to the communication unit (22); A communication unit (22) is used to receive the standby power a1, the rated power a2 and the real-time power a3 and upload the standby power a1 and the rated power a2 to the power monitoring module (9) through the wireless gateway (10), and upload the real-time power a3 to the equipment fault detection module (8), and the communication unit (22) is connected to the wireless gateway (10) by wireless communication; The communication unit (22) also uploads its own IP address to the central control module (1) through the wireless gateway (10). After receiving the IP address of the communication unit (22), the central control module (1) converts it into a position point in the spatial coordinate system.

3. The equipment fault detection system based on current fingerprint technology according to claim 2 is characterized in that: The power monitoring module (9) comprises a power judgment unit (91), a branch judgment unit (92), a space coordinate retrieval unit (93) and a socket position pushing unit (94); A power judgment unit (91) is used to receive data information of standby power a1 and rated power a2, and judge the relationship between the total branch rated power b+a2 and the branch power limit threshold r; If b+a2<r, the power judgment unit (91) uploads the standby power a1 and the rated power a2 of the device to the current fingerprint setting module (3); If b+a2≥r, the power judgment unit (91) sends the rated power a2 to the branch judgment unit (92); A branch judging unit (92), used for receiving a rated power a2 and judging whether there is a branch with b+a2<r; If it exists, the branch judgment unit (92) sends the judgment result to the space coordinate retrieval unit (93); If it does not exist, the branch judgment unit (92) outputs a command message of not supplying power and sends it to the dispatcher; A spatial coordinate retrieval unit (93) receives the judgment result, retrieves the spatial coordinate position of the branch that meets b+a2<r, and sends it to the position push unit (94); The position push unit (94) is used to receive the spatial coordinate position of the branch, and select the spatial coordinate of the identification module (2) closest to the current detection position and send it to the dispatcher.

4. The equipment fault detection system based on current fingerprint technology according to claim 1 is characterized in that: Equipment label information includes Class I appliances, Class II appliances, and Class III appliances.

5. The equipment fault detection system based on current fingerprint technology according to claim 4 is characterized in that: Class I electrical appliances are hazardous electrical appliances, including electric motors, electric irons, hair dryers and power tools; Class II electrical appliances are electrical equipment with insulated parts that can be touched by dispatchers, including refrigerators, stereos and projectors; Category 3 appliances use a safe, low-voltage power supply for the entire appliance, including USB chargers and mobile phone chargers.

6. The equipment fault detection system based on current fingerprint technology according to claim 2 is characterized in that: The equipment fault detection module (8) comprises a data analysis unit (81), an equipment fault processing unit (82) and an alarm unit (83); A data analysis unit (81), the data analysis unit (81) is connected to the wireless gateway (10) by wireless communication, and is used to receive real-time power data information and generate a power change graph to perform power change judgment; If the power of the device suddenly increases and then becomes zero, it indicates that the device is faulty, and the faulty device is sent to the device fault processing unit (82); The device fault processing unit (82) receives the faulty device information and the device tag information in the central control module (1), processes the faulty device, and then uploads the processing method to the central control module (1); The alarm unit (83) is used to receive the instruction information from the central control module (1) and send alarm information to the dispatcher.

7. The equipment fault detection system based on current fingerprint technology according to claim 6 is characterized in that: The alarm unit (83) is an alarm and a display screen.

8. The equipment fault detection system based on current fingerprint technology according to claim 7 is characterized in that: The alarm and the display screen are both electrically connected to the central control module (1).

9. The device fault detection system based on current fingerprint technology according to claim 6 is characterized in that: The device fault processing unit (82) processes the device with different device tag information: For a type of electrical appliance that is damaged in a branch circuit, the equipment fault processing unit (82) outputs an instruction to turn off the main switch s1 to the central control module (1), and the central control module (1) receives the instruction information and notifies the dispatcher to turn off the main switch s1 through the alarm unit (83); For damaged Class II electrical appliances in a branch, the equipment fault processing unit (82) outputs an instruction to close the branch switch w1 where the Class II electrical appliances are located to the central control module (1), and the central control module (1) receives the instruction information and notifies the dispatcher to close the branch switch w1 through the alarm unit (83); For the three types of electrical appliances damaged in the branch circuit and the equipment that is powered by a2<e as determined by the power judgment module (6), the equipment fault processing unit (82) outputs a command to shut down the equipment itself to the central control module (1), and the central control module (1) receives the command information and controls the corresponding identification module (2) to shut down the power supply.

10. The equipment fault detection system based on current fingerprint technology according to any one of claims 1 to 9, characterized in that: It also includes an audit module (7) for outputting a no-power-supply instruction in the result output unit (53), so that the dispatching personnel can send a power-supply appeal instruction to the central control module (1), and the central control module (1) controls the identification module (2) to start power supply.

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