Intelligent sound wave fault detection device for substation inspection robot

Abstract

The invention relates to the technical field of power transformation operation and maintenance of a power system, in particular to an intelligent sound wave fault detection device for a substation inspection robot, which comprises an epoxy resin shell, the epoxy resin shell is composed of a shell door and a shell frame, a normal lamp, a power switch and an alarm lamp are embedded in the shell door, and a buzzer alarm is arranged at one end of the shell frame. A microphone is arranged at one end of the buzzer alarm, a circuit board is arranged at one end of the fixing mechanism, an SD card and a DSP chip are arranged at one end of the circuit board, sound signals of various devices of the transformer substation can be collected in real time through the microphone and matched and recognized, and when abnormity is found, the sound signals are transmitted to the buzzer alarm through the SD card and the DSP chip arranged on the circuit board electrically connected with the microphone. Data storage and signal processing functions are provided for the device, then sound is made through the buzzer alarm, meanwhile, the alarm lamp is turned on to remind operation and maintenance personnel, efficient processing and analysis of sound wave signals collected by the transformer substation inspection robot are achieved, and faults are accurately detected.

Description

Technical Field

[0001] The present invention relates to the technical field of power system substation operation and maintenance, and in particular to an intelligent acoustic wave fault detection device for a substation inspection robot. Background Art

[0002] Substation equipment inspection is a basic work to effectively ensure the safe operation of substation equipment and improve power supply reliability. It is mainly divided into normal inspection and special inspection. Normal inspection is carried out at least once a day, and special inspection is mainly carried out in high temperature, strong wind, ice and snow, thunderstorm, before and after major festivals, and during the commissioning of new equipment. The current inspection method is mainly manual inspection, and each inspection time is more than 2 hours. Many substations have harsh conditions, such as extreme heat, strong wind, blizzard, etc., and it is very difficult to conduct equipment inspections manually.

[0003] During the inspection of the substation, sound signals provide operation and maintenance personnel with a wealth of judgment basis. Listening is an important inspection method. The transformer will emit a uniform humming sound during normal operation, while most other equipment is silent during normal operation. When various abnormalities or faults occur, various abnormal sounds will be emitted. Ignoring this information during the inspection will result in some faults not being discovered and eliminated in time, which will inevitably cause hidden dangers to the safe operation of the substation.

[0004] With the rapid development of robot technology, intelligent inspection robots have been introduced in substations to replace operation and maintenance personnel in carrying out some inspection work. Intelligent inspection robots carry substation equipment detection devices such as infrared thermal imagers and visible light cameras. During the inspection of substations, they can transmit different data to the remote monitoring system in real time, identify various sound signals of substations, and make preliminary judgments and automatic analysis of abnormal signals through pattern recognition. With the help of intelligent inspection robots, abnormal alarms are uploaded to the remote monitoring system in real time, which provides an important reference for the operation and maintenance of substations. Therefore, it is of great significance to develop a new and reliable intelligent acoustic fault detection device for substation inspection robots. Summary of the invention

[0005] The purpose of the present invention is to overcome the problem that the current intelligent inspection robot cannot collect and analyze the sound spectrum, and to provide a substation inspection robot intelligent sound wave fault detection device, which can timely and comprehensively discover the sound anomalies in the operation of the substation, and provide reference data for the operation and maintenance personnel to grasp the operation status of the substation in real time.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: an intelligent acoustic wave fault detection device for a substation inspection robot, comprising an epoxy resin shell, the epoxy resin shell being formed by a shell door and a shell frame hinge, the shell door being embedded with a normal light, a power switch and an alarm light, the lower end of the shell frame being embedded with a universal USB3.0 data interface, one end of the universal USB3.0 data interface being provided with a locking assembly, one end of the shell frame being provided with a buzzer alarm, one end of the buzzer alarm being provided with a microphone, a fixing mechanism being provided in the shell frame, one end of the fixing mechanism being provided with a circuit board, one end of the circuit board being provided with an SD card, the central end of the circuit board being provided with a DSP chip, and one end of the fixing mechanism being provided with a liquid crystal display.

[0007] As a preferred solution of the intelligent acoustic wave fault detection device for a substation inspection robot described in the present invention, a vibration motor is arranged at the lower end of the outer shell frame, and the output end of the vibration motor is electrically connected to a power switch.

[0008] As a preferred solution of the intelligent acoustic wave fault detection device for a substation inspection robot described in the present invention, a backup power supply is provided at one end of the vibration motor, and the input end of the vibration motor is electrically connected to the backup power supply.

[0009] As a preferred solution of the intelligent acoustic wave fault detection device for a substation inspection robot described in the present invention, a display screen observation window is embedded on the outer shell door, and the display screen observation window is located directly in front of the liquid crystal display screen.

[0010] As a preferred solution of the intelligent acoustic wave fault detection device of a substation inspection robot described in the present invention, the fixing mechanism includes two pairs of fixing components, the two pairs of the fixing components are symmetrically arranged at the inner two ends of the outer shell frame, the fixing components are provided with a fixing frame, both ends of the fixing frame are provided with a hanging bracket, the hanging bracket is provided with multiple fixing plates, and the multiple fixing plates are provided with locking components.

[0011] As a preferred solution of the intelligent acoustic wave fault detection device of a substation inspection robot described in the present invention, the fixing component includes a fixing frame, the fixing frame is arranged at the inner end of the outer shell frame, a plurality of fixing grooves are arranged in an array on the fixing frame, a placement groove is arranged at one end of the fixing groove, a fixing block is arranged in the sliding groove for limited sliding, a first spring is arranged in the sliding groove, both ends of the first spring are arranged at one end of the sliding groove and the fixed block, a toggle groove is arranged at one end of the sliding groove on the fixing component, a toggle block is arranged in the toggle groove, and one end of the toggle block is fixedly connected to the fixed block.

[0012] As a preferred solution of the intelligent acoustic wave fault detection device of a substation inspection robot described in the present invention, fixing rods are provided at both ends of the fixing frame, the fixing rods are fixed in the fixing grooves, and multiple notches are opened at both ends of the fixing frame.

[0013] As a preferred solution of the intelligent acoustic wave fault detection device of a substation inspection robot described in the present invention, wherein: the locking assembly includes two symmetrically arranged locking blocks, the two locking blocks are arranged on a fixed plate, one end of one of the locking blocks is provided with a locking plate, one end of the locking plate is provided with a groove, a sliding plate is provided in the groove for limited sliding, one end of the sliding plate is fixedly connected to the other locking block, a plurality of second springs are distributed in an array in the groove, and both ends of the plurality of second springs are fixedly connected to the sliding plate and one end of the groove.

[0014] As a preferred solution of the intelligent acoustic wave fault detection device of a substation inspection robot described in the present invention, the locking assembly includes a locking frame, which is arranged at the lower end of the outer shell frame and located on one side of the universal USB3.0 data interface, one end of the locking frame is hinged with a locking plate, the other end of the locking frame is provided with a locking block, one end of the locking plate is provided with a locking sleeve, and the locking sleeve is sleeved on the locking block.

[0015] As a preferred solution of the intelligent acoustic wave fault detection device for a substation inspection robot described in the present invention, a T-shaped buckle is provided at the rear end of the outer shell frame.

[0016] Beneficial effects of the present invention: 1. The microphone can collect the sound signals of various equipment in the substation in real time and match and identify them. When an abnormality is found, the SD card and DSP chip set on the circuit board electrically connected by the microphone can provide data storage and signal processing functions for the device, and then a sound is emitted through the buzzer alarm, and the alarm light is on to remind the operation and maintenance personnel, so as to realize efficient processing and analysis of the sound wave signals collected by the substation inspection robot and accurately detect the fault.

[0017] 2. The equipment has a simple structure, reliable performance, and low cost. The modules of the device are highly integrated. It adopts a mature chip design that has been tested in practice for many years, has a low failure rate, and is highly flexible. It can be used with the help of an intelligent inspection robot to perform acoustic wave analysis and judgment on the entire station equipment. It can also be fixedly installed on a single specific device for real-time monitoring of the equipment's acoustic waves, which is convenient for data management. The collected and processed signals are formed into a historical database. The operation and maintenance management personnel can accurately grasp the equipment's operating status through statistical analysis of the data, which is of great significance to improving the equipment's operating level. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them: Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the isometric rear view structure of the present invention.

[0020] Figure 3 It is a schematic diagram of the internal structure of the outer shell frame of the present invention.

[0021] Figure 4 It is an enlarged schematic diagram of the locking component structure in the present invention.

[0022] Figure 5 It is an enlarged schematic diagram of the fixed component structure in the present invention.

[0023] Figure 6 It is a schematic diagram of the rear view structure inside the outer shell frame of the present invention.

[0024] Figure 7 It is a schematic diagram of the disassembled structure of the locking component in the present invention.

[0025] Figure 8 It is an enlarged schematic diagram of the structure of the connection of the fixing rod in the present invention.

[0026] Description of reference numerals: 1. Epoxy resin shell; 101. Shell door; 102. Shell frame; 2. Display screen observation window; 3. Normal light; 4. Universal USB3.0 data interface; 5. Power switch; 6. Warning light; 7. Buzzer alarm; 8. Microphone; 9. T-type buckle; 10. SD card; 11. LCD screen; 12. DSP chip; 13. Fixing mechanism; 131. Fixing assembly; 1310. Fixing frame; 1311. Fixing slot; 1312. Fixing block; 13 13. First spring; 1314. Toggle slot; 1315. Toggle block; 132. Fixed frame; 133. Hanging bracket; 134. Fixed plate; 14. Vibration motor; 15. Backup power supply; 16. Locking assembly; 161. Locking bracket; 162. Locking plate; 163. Locking block; 164. Locking sleeve; 17. Fixing assembly; 171. Buckle block; 172. Buckle plate; 173. Sliding plate; 174. Second spring; 18. Fixed rod; 19. Notch. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings. Example 1

[0028] Reference Figure 1-8 , which is the first embodiment of the present invention, provides an intelligent acoustic fault detection device for a substation inspection robot, including an epoxy resin shell 1, the epoxy resin shell 1 is composed of a shell door 101 and a shell frame 102, and the epoxy resin shell has good insulation performance and mechanical strength, and can effectively protect the internal electronic components from the influence of the external environment. The shell door 101 and the shell frame 102 are connected by a hinge, and the hinge connection is convenient for opening and closing, which is convenient for maintenance and repair of internal circuit boards and other components.

[0029] Furthermore, a T-shaped buckle 9 is provided at the rear end of the outer shell frame 102, and the T-shaped buckle 9 is fixedly provided at one end of the inspection robot to ensure that the device will not fall off or shake during the inspection process, thereby improving the stability and reliability of the device.

[0030] Furthermore, a universal USB 3.0 data interface 4 is embedded in the lower end of the outer shell frame 102, and the universal USB 3.0 data interface 4 is connected to the inspection robot via a data cable. A locking assembly 16 is provided at one end of the universal USB 3.0 data interface 4, and the locking assembly 16 includes a locking frame 161, which is arranged at the lower end of the outer shell frame 102 and located on one side of the universal USB 3.0 data interface 4, one end of the locking frame 161 is hinged with a locking plate 162, and the other end of the locking frame 161 is provided with a locking block 163, and one end of the locking plate 162 is provided with a locking sleeve 164, and the locking sleeve 164 is sleeved on the locking block 163. When the data cable is inserted into the universal USB 3.0 data interface 4, the locking plate 162 sleeves the data cable interface, and the locking sleeve 164 is sleeved on the locking block 163, which can effectively protect the connection between the data cable interface and the universal USB 3.0 data interface 4, prevent damage or accidental touch by external force during use, and improve the safety and reliability of the data interface. Example 2

[0031] Reference Figure 1-8 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: The outer shell door 101 is embedded with a normal light 3, a power switch 5 and an alarm light 6, one end of the outer shell frame 102 is embedded with a buzzer alarm 7, one end of the buzzer alarm 7 is provided with a microphone 8, and the microphone 8 is fixed to the outer end of the outer shell frame 102 by an adhesive. The coordinated use of the buzzer alarm 7 and the microphone 8 can emit a sound alarm when a fault is detected, and can also collect surrounding sound wave signals, thereby improving the accuracy and timeliness of fault detection.

[0032] Furthermore, a fixing mechanism 13 is provided in the outer shell frame 102, a circuit board is provided at one end of the fixing mechanism 13, a DSP chip 12 is provided at the central end of the circuit board through a mold hole, the DSP chip 12 is electrically connected to the buzzer alarm 7, an interface is provided at one end of the circuit board, an SD card 10 is inserted in the interface, the SD card 10 and the DSP chip 12 arranged on the circuit board provide data storage and signal processing functions for the device, which can realize efficient processing and analysis of the sound wave signals collected by the substation inspection robot, and accurately detect faults.

[0033] Furthermore, a liquid crystal display screen 11 is provided at one end of the fixing mechanism 13, and the liquid crystal display screen 11 is electrically connected to the DSP chip 12. A display screen observation window 2 is embedded in the outer shell door 101, and the display screen observation window 2 is located directly in front of the liquid crystal display screen 11. The liquid crystal display screen 11 can intuitively display the test results and related information, so that the operator can directly observe and understand the working status and fault conditions of the device through the display screen observation window 2.

[0034] The remaining structures are the same as those of Example 1. Example 3

[0035] Reference Figure 3-8 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: The fixing mechanism 13 includes two pairs of fixing components 131, which are symmetrically arranged at the inner two ends of the outer shell frame 102. A fixing frame 132 is arranged on the fixing component 131, and hook frames 133 are arranged at both ends of the fixing frame 132. A plurality of fixing plates 134 are arranged on the hook frames 133, and a fixing component 17 is arranged on the plurality of fixing plates 134. The hook frames 133 at both ends of the fixing frame 132 and the fixing components 17 on the fixing plates 134 can firmly fix the circuit board on the fixing plates 134 to prevent the circuit board from loosening or displacement during the operation of the device, thereby ensuring the stability and reliability of the device.

[0036] Furthermore, the fixing assembly 131 includes a fixing frame 1310, the fixing frame 1310 is arranged at the inner end of the outer shell frame 102, a plurality of fixing grooves 1311 are arranged in an array on the fixing frame 1310, one end of the fixing groove 1311 is provided with a placement groove, a fixing block 1312 is provided in the sliding groove for limited sliding, a first spring 1313 is provided in the sliding groove, both ends of the first spring 1313 are arranged at the sliding groove and one end of the fixing block 1312, a toggle groove 1314 is provided at one end of the sliding groove on the fixing assembly 131, a toggle block 1315 is provided in the toggle groove 1314, one end of the toggle block 1315 is fixedly connected to the fixing block 1312, and the fixing frame Both ends of 132 are provided with fixing rods 18, and the fixing rods 18 are fixedly arranged in the fixing grooves 1311. Both ends of the fixing frame 132 are provided with multiple notches 19. The multiple notches 19 can make the fixing frame 132 and the fixing frame 1310 connected without obstacles, and at the same time do not affect the use of the toggle block 1315. Through the cooperation of the fixing grooves 1311, notches 19, fixing blocks 1312, first springs 1313, toggle blocks 1315 and other components on the fixing assembly 131 and the fixing frame 132, the fixing frame 132 can be conveniently fixed in the fixing frame 1310, and can also be adjusted and disassembled as needed, thereby improving the flexibility and maintainability of the device.

[0037] Furthermore, the locking assembly 17 includes two symmetrically arranged locking blocks 171, and the two locking blocks 171 are arranged on the fixed plate 134, and a locking plate 172 is arranged at one end of one of the locking blocks 171, and a groove is opened at one end of the locking plate 172, and a sliding plate 173 is arranged in the groove for limited sliding, and one end of the sliding plate 173 is fixedly connected to the other locking block 171, and a plurality of second springs 174 are distributed in an array in the groove, and both ends of the plurality of second springs 174 are fixedly connected to the sliding plate 173 and one end of the groove, which can adapt to accessories such as circuit boards and liquid crystal display screens 11 of different sizes, thereby improving the versatility of the device.

[0038] The remaining structures are the same as those of Example 1. Example 4

[0039] Reference Figure 1-3 , which is the second embodiment of the present invention, and this embodiment is different from the first embodiment in that: A vibration motor 14 is provided at the lower end of the outer shell frame 102, and the output end of the vibration motor 14 is electrically connected to the power switch 5. A backup power supply 15 is provided at one end of the vibration motor 14, and the input end of the vibration motor 14 is electrically connected to the backup power supply 15. When the inspection robot is working, the vibration motor 14 stores electricity in the backup power supply 15, and the backup power supply 15 can provide emergency power when the main power supply fails or is cut off, ensuring that the device can still work normally in an emergency, thereby improving the reliability of the device.

[0040] The remaining structures are the same as those of Example 1.

[0041] The specific operation working principle of the present invention is as follows: In front of the intelligent acoustic wave fault detection device of the substation inspection robot, it is fixed on the robot by a T-shaped buckle 9, and then the device is connected to the robot through a data cable with a USB3.0 data interface 4 to power on, and then the power switch 5 is pressed, and the normal light 3 lights up, and the device starts working, the microphone 8 collects the acoustic wave signal, and transmits the collected acoustic wave signal to the DSP chip 12 on the circuit board for processing and analysis. When the equipment is diagnosed to be abnormal, the alarm light 6 lights up, and the buzzer alarm 7 sounds an alarm, and the alarm time is displayed on the LCD screen 11. At the same time, the processing and analysis results are saved in the SD card 10, and at the same time, they are transmitted to the remote monitoring system through a dedicated wireless network with the help of the intelligent inspection robot.

[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. An intelligent acoustic fault detection device for a substation inspection robot, comprising an epoxy resin shell (1), wherein the epoxy resin shell (1) is formed by a shell door (101) and a shell frame (102) hingedly, and the shell door (101) is embedded with a normal light (3), a power switch (5) and an alarm light (6), characterized in that: A universal USB 3.0 data interface (4) is embedded at the lower end of the outer shell frame (102); a locking component (16) is provided at one end of the universal USB 3.0 data interface (4); a buzzer alarm (7) is provided at one end of the outer shell frame (102); a microphone (8) is provided at one end of the buzzer alarm (7); a fixing mechanism (13) is provided inside the outer shell frame (102); a circuit board is provided at one end of the fixing mechanism (13); an SD card (10) is provided at one end of the circuit board; a DSP chip (12) is provided at the central end of the circuit board; and a liquid crystal display (11) is provided at one end of the fixing mechanism (13).

2. According to claim 1, the intelligent acoustic wave fault detection device of a substation inspection robot is characterized in that A vibration motor (14) is disposed at the lower end of the outer shell frame (102), and an output end of the vibration motor (14) is electrically connected to a power switch (5).

3. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 2 is characterized in that A backup power supply (15) is provided at one end of the vibration motor (14), and an input end of the vibration motor (14) is electrically connected to the backup power supply (15).

4. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 1 is characterized in that A display screen observation window (2) is embedded in the housing door (101), and the display screen observation window (2) is located directly in front of the liquid crystal display screen (11).

5. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 1 is characterized in that The fixing mechanism (13) comprises two pairs of fixing components (131), the two pairs of fixing components (131) are symmetrically arranged at the inner two ends of the outer shell frame (102), a fixing frame (132) is arranged on the fixing components (131), both ends of the fixing frame (132) are provided with a hanging buckle frame (133), a plurality of fixing plates (134) are arranged on the hanging buckle frame (133), and a locking component (17) is arranged on each of the plurality of fixing plates (134).

6. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 5 is characterized in that The fixing component (131) comprises a fixing frame (1310), wherein the fixing frame (1310) is arranged at the inner end of the outer shell frame (102), wherein a plurality of fixing grooves (1311) are arranged in an array on the fixing frame (1310), wherein one end of the fixing groove (1311) is provided with a placement groove, wherein a fixing block (1312) is arranged in the sliding groove for limited sliding, wherein a first spring (1313) is arranged in the sliding groove, wherein both ends of the first spring (1313) are arranged at one end of the sliding groove and the fixing block (1312), wherein a toggle groove (1314) is arranged on the fixing component (131) at one end of the sliding groove, wherein a toggle block (1315) is arranged in the toggle groove (1314), wherein one end of the toggle block (1315) is fixedly connected to the fixing block (1312).

7. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 6 is characterized in that Both ends of the fixing frame (132) are provided with fixing rods (18), and the fixing rods (18) are fixedly arranged in the fixing grooves (1311). Both ends of the fixing frame (132) are provided with a plurality of notches (19).

8. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 5 is characterized in that The locking assembly (17) comprises two symmetrically arranged locking blocks (171), the two locking blocks (171) being arranged on a fixed plate (134), one end of one of the locking blocks (171) being provided with a locking plate (172), one end of the locking plate (172) being provided with a groove, a sliding plate (173) being provided in the groove for limited sliding, one end of the sliding plate (173) being fixedly connected to the other locking block (171), a plurality of second springs (174) being arranged in an array in the groove, both ends of the plurality of second springs (174) being fixedly connected to the sliding plate (173) and one end of the groove.

9. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 1 is characterized in that The locking assembly (16) comprises a locking frame (161), the locking frame (161) being arranged at the lower end of the outer shell frame (102) and being located on one side of the universal USB3.0 data interface (4), one end of the locking frame (161) being hingedly connected with a locking plate (162), the other end of the locking frame (161) being provided with a locking block (163), one end of the locking plate (162) being provided with a locking sleeve (164), and the locking sleeve (164) being sleeved on the locking block (163).

10. The intelligent acoustic wave fault detection device for a substation inspection robot according to claim 1 is characterized in that A T-shaped buckle (9) is provided at the rear end of the outer shell frame (102).

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