Plug-in type intelligent cable grounding box with plug-in state sensing function

Abstract

A plug-in state sensing intelligent cable grounding box, comprising a front cover and a box body, the front cover is a transparent structure, a pressure limiter, a cross interconnection metal row, a coaxial cable, a grounding box intelligent collector USB socket and an expansion area standardized function module USB interface are arranged in the equipment area; the grounding box intelligent collector USB socket and the expansion area standardized function module USB interface are both connected with a state sensing sensor in a plug-in manner; an electronic circuit board is fixed in an electronic circuit board placement area. The plug-in state sensing device is adopted, the grounding box state sensing function is integrated, various plug-in sensors are directly inserted into the intelligent collector through the USB socket, plug and play is realized, and users can independently select whether to insert and use the related monitoring function. If the related function sensor is damaged, the damaged sensor can be directly pulled out from the USB interface and replaced, and the whole box does not need to be replaced, so that maintenance is convenient and fast.

Description

Technical Field

[0001] This utility model relates to the field of cable grounding box technology, specifically a pluggable, state-sensing intelligent cable grounding box. Background Technology

[0002] With the continuous advancement of urbanization, the number of urban power transmission cables has increased dramatically, leading to a surge in the use of cable grounding boxes. Due to the contradiction between the insufficient number of maintenance personnel and the sheer number of grounding boxes, some researchers have pre-placed temperature, humidity, and current sensors inside the grounding boxes to achieve real-time monitoring of their operating conditions. Currently, grounding boxes commonly employ a pre-fixed sensor installation method, where various sensors are directly welded or screwed into the grounding box during manufacturing and rigidly connected to the internal acquisition circuitry. While this structure achieves basic condition monitoring, it cannot update or change the monitoring items based on usage in practical engineering applications. Furthermore, the sensors are relatively fragile and have a relatively short lifespan. If a sensor fails, restoring functionality requires replacing the entire grounding box or returning it to the factory for disassembly and repair, a cumbersome and uneconomical process. Simultaneously, cable maintenance units have increasingly higher requirements for the confidentiality and security of operational data collected by the grounding boxes. However, the current lack of data security safeguards results in low data transmission security and confidentiality, and the relatively limited data transmission channels make data loss highly likely.

[0003] Therefore, developing an intelligent cable grounding box that can flexibly expand monitoring functions and ensure secure and reliable data transmission has significant practical engineering value. Utility Model Content

[0004] The purpose of this invention is to provide a pluggable, state-sensing intelligent cable grounding box, which solves the technical problems of existing grounding boxes having fixed sensor functions, difficult maintenance, and insecure data transmission.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pluggable status-sensing intelligent cable grounding box, comprising a front cover and a box body, wherein the front cover and the box body are detachably connected by bolts.

[0006] The front cover is transparent, and an insulating baffle is provided inside the box to divide the internal space of the box into an upper equipment area and a lower electronic circuit board placement area.

[0007] The equipment area is equipped with a voltage limiter, cross-connecting metal busbars, coaxial cables, a grounding box intelligent data acquisition USB port, and an expansion area standardized function module USB interface; both the grounding box intelligent data acquisition USB port and the expansion area standardized function module USB interface can be plugged into and detached to connect to status sensing sensors.

[0008] Electronic circuit boards are fixed in the electronic circuit board placement area.

[0009] Furthermore, the state sensing sensors include pluggable temperature sensors, pluggable humidity sensors, pluggable circulating current sensors, pluggable partial discharge sensors, and pluggable vibration sensors.

[0010] Furthermore, both the pluggable temperature sensor and the pluggable humidity sensor consist of a sensor body, a connecting cable, and a USB plug. The sensor body is attached to the upper inner wall of the device area. The pluggable circulating current sensor consists of a flexible Rogowski coil, a signal processing unit, and a USB plug. The flexible Rogowski coil is fitted onto the cross-connecting metal busbar via a snap-fit ​​structure. The pluggable partial discharge sensor consists of an ultra-high frequency antenna, a signal conditioning unit, and a USB plug. The ultra-high frequency antenna is fixed to the upper end of the coaxial cable via a snap-fit ​​structure. The pluggable vibration sensor consists of a piezoelectric vibration probe, a signal amplification unit, and a USB plug. The piezoelectric vibration probe is fixed to the middle of the coaxial cable via a binding structure.

[0011] Furthermore, the electronic circuit board integrates a grounding box intelligent data acquisition unit, as well as an expansion area standardized functional module, a data bus, a data cleaning module, a data storage device, a card slot, a dedicated network transmission module, a data intelligent analysis module, and a transmission communication module.

[0012] The USB port of the intelligent grounding box data acquisition unit and the USB interface of the standardized function module in the expansion area are connected to the intelligent grounding box data acquisition unit and the standardized function module in the expansion area, respectively. The outputs of both the intelligent grounding box data acquisition unit and the standardized function module in the expansion area are connected to the data bus. The output of the data bus is connected to the input of the data cleaning module, and the output of the data cleaning module is connected to the input of the data storage unit and the intelligent data analysis module, respectively. The card slot is used for pluggable installation of a secure encrypted communication module, the output of which is connected to the input of a dedicated network transmission module. The output of the intelligent data analysis module is connected to the input of a transmission communication module. The dedicated network transmission module is used to connect to a dedicated power communication network, and the transmission communication module is used to connect to a public network communication network.

[0013] Furthermore, the front cover includes tempered glass and a stainless steel frame. The tempered glass is embedded in the middle of the stainless steel frame, and the tempered glass and the stainless steel frame are bonded and fixed together by insulating sealant. The stainless steel frame has a plurality of bolt holes evenly arranged around its circumference.

[0014] Furthermore, a display screen is also fixedly installed in the equipment area. The display screen is connected to the intelligent data collector in the grounding box via a ribbon cable, and is used to display the data values ​​collected by all status sensing sensors and the operating status of the equipment in real time.

[0015] Beneficial effects

[0016] This invention employs a pluggable status sensing device, integrating the status sensing function of the grounding box. Various pluggable sensors are directly inserted into the intelligent data acquisition unit via a USB port, enabling plug-and-play functionality. The pluggable structure increases user customization options, allowing users to choose whether to insert and enable relevant monitoring functions. If a sensor is damaged, it can be directly unplugged from the USB port and replaced without replacing the entire box, making maintenance convenient and quick.

[0017] This utility model features a dual-insurance data transmission channel: a dedicated network under normal circumstances and a communication network in emergencies. Under normal circumstances, encrypted data is transmitted to the online monitoring center via the dedicated network. When an anomaly occurs in the tunnel and the dedicated network fails, the data processing and analysis module inside the box performs simple analysis and judgment on the data, and then sends the abnormal data to the mobile phones of maintenance personnel via the communication module, promptly alerting them to the anomaly. When the dedicated network is restored, the data collected during the dedicated network failure is retrieved through the data storage module inside the box and transmitted to the online monitoring center via the dedicated network, ensuring the integrity of the data received by the online monitoring center and facilitating future analysis of the grounding box's operational status. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0019] Figure 1 This is a schematic diagram of the front cover structure of the intelligent cable grounding box of this utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the intelligent cable grounding box of this utility model;

[0021] Figure 3 This is a schematic diagram of the plan layout of the intelligent cable grounding box equipment area of ​​this utility model;

[0022] Figure 4 This is a structural block diagram of the electronic circuit board of the intelligent cable grounding box of this utility model.

[0023] Component numbers in the diagram are as follows: 1. Tempered glass; 2. Stainless steel frame; 3. Bolt holes; 4. Insulating baffle; 5. Equipment area; 6. Electronic circuit board placement area; 7. Voltage limiter; 8. Cross-connect metal busbar; 9. Grounding box intelligent data acquisition unit USB port; 10. Expansion area standardized function module USB interface; 11. Plug-in temperature sensor; 12. Plug-in humidity sensor; 13. Plug-in circulating current sensor; 14. Plug-in partial discharge sensor; 15. Plug-in vibration sensor; 16. Coaxial cable; 17. Display screen; 18. Electronic circuit board; 19. Grounding box intelligent data acquisition unit; 20. Expansion area standardized function module; 21. Data bus; 22. Data cleaning module; 23. Data storage device; 24. Secure encrypted communication module; 25. Card slot; 26. Dedicated network transmission module; 27. Data intelligent analysis module; 28. Transmission communication module. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] To achieve the above objectives, this utility model provides the following technical solution: the pluggable status-sensing intelligent cable grounding box mainly comprises two parts: a front cover and a box body. For example... Figure 1 As shown, the front cover of the grounding box adopts a transparent structure. The main body of the cover is made of tempered glass 1. The transparent tempered glass 1 allows for a clear observation of the operation inside the box. The cover is surrounded by a stainless steel frame 2, which is connected by insulating sealant to ensure firmness and sealing. The stainless steel frame 2 has bolt holes 3 around its perimeter. Bolts are inserted through these bolt holes to connect the cover to the box body.

[0026] like Figure 2 As shown, the enclosure is mainly made of stainless steel. An insulating baffle 4 is located near the bottom of the enclosure, and its perimeter is fixed to stainless steel support strips on the inner wall of the enclosure with screws. The insulating baffle 4 divides the entire grounding box into upper and lower spaces. The upper space is larger and is the equipment area 5, while the lower space is smaller and is the electronic circuit board placement area 6. Multiple wiring holes are provided on the insulating baffle 4.

[0027] like Figure 3The diagram shows a plan view of equipment area 5, which includes major components such as voltage limiter 7 and cross-connecting metal busbar 8. Voltage limiter 7 is bolted to the base plate of equipment area 5 and is used to limit overvoltage on the cable metal sheath. Cross-connecting metal busbar 8 is supported above voltage limiter 7 by epoxy resin insulated supports. One end of coaxial cable 16 is connected to cross-connecting metal busbar 8 through a terminal block, and the other end extends through a waterproof gland on the side wall of the enclosure to the outside of the enclosure and connects to the cable metal sheath.

[0028] The upper right corner of equipment area 5 is equipped with a grounding box intelligent data acquisition device USB port 9 and an expansion area standardized function module USB interface 10. The grounding box intelligent data acquisition device USB port 9 and the expansion area standardized function module USB interface 10 are connected to the signal input terminals of the grounding box intelligent data acquisition device 19 and the expansion area standardized function module 20 on the electronic circuit board 18 respectively via connecting cables.

[0029] Based on standard usage requirements, users can install five types of pluggable status sensing devices, including a pluggable temperature sensor 11, a pluggable humidity sensor 12, a pluggable circulating current sensor 13, a pluggable partial discharge sensor 14, and a pluggable vibration sensor 15. Each pluggable sensor consists of a sensor body, a connecting cable, and a USB plug. The USB plug is inserted into the USB port 9 of the grounding box intelligent data acquisition unit to connect the sensor to the grounding box intelligent data acquisition unit 19. The pluggable temperature sensor 11 and pluggable humidity sensor 12 are installed on the upper part of the enclosure to monitor the temperature and humidity information inside the enclosure. The pluggable circulating current sensor 13 is fitted onto the cross-connecting metal busbar 8 via a flexible snap-fit ​​structure to monitor grounding circulating current information. The pluggable partial discharge sensor 14 is fitted onto the upper end of the coaxial cable 16 via a snap-fit ​​structure to monitor partial discharge conditions. The pluggable vibration sensor 15 is tied to the coaxial cable 16 for anti-theft and anti-cutting monitoring.

[0030] The pluggable structure increases user personalization options, allowing for easy plugging and unplugging based on actual needs and preferences. It's plug-and-play, and when a sensor is damaged, it can be directly replaced without replacing the entire enclosure, making maintenance convenient, quick, and cost-effective. Simultaneously, the standardized USB interface 10 in the expansion area can easily connect to other sensors corresponding to the monitored indicators. The expansion unit is plug-and-play, offering greater monitoring flexibility and applicability. A display screen 17 is located in the upper center of equipment area 5. The display screen 17 is connected to the intelligent data acquisition unit 19 in the grounding box via an FPC cable. The display screen 17 shows all monitoring data, and maintenance personnel can directly view and read the values ​​through the tempered glass 1 without opening the enclosure.

[0031] like Figure 4The diagram shows electronic circuit board 18 in electronic circuit board placement area 6. Electronic circuit board 18 integrates a power management module. The input of the power management module is connected to an external power supply, and its output provides DC power to all electronic modules and sensors. The power management module has a built-in backup lithium battery, which can maintain normal system operation for a period of time when the external power supply is interrupted. All pluggable sensors obtain power from their corresponding acquisition modules via USB interfaces, eliminating the need for additional wiring.

[0032] The grounding box intelligent data acquisition unit 19 and the extended area standardized function module 20 are used to acquire sensing signals from sensors connected via USB and aggregate them onto the data bus 21. The data bus 21 is connected to the data cleaning module 22, and the output of the data cleaning module 22 is connected to the input of the data storage unit 23 and the data intelligent analysis module 27, respectively. The data cleaning module 22 is mainly used to clean the acquired data, filter out valid data, filter out erroneous data, and transmit the valid data to the data storage unit 23.

[0033] The electronic circuit board 18 is also equipped with a card slot 25, in which the secure encrypted communication module 24 is pluggably installed. Users can choose whether to insert the secure encrypted communication module 24 according to their confidentiality needs. If needed, the secure encrypted communication module 24 can be inserted into the card slot 25, and data can be transmitted to the online monitoring center via the dedicated network transmission module 26. The output of the data intelligent analysis module 27 is connected to the input of the transmission communication module 28. If the dedicated network fails, the data intelligent analysis module 27 will send the analyzed abnormal data and alarm information to the maintenance personnel's mobile phone via SMS through the transmission communication module 28. When the dedicated network is restored, the data collected during the dedicated network failure period is retrieved through the data storage 23 inside the box and transmitted to the online monitoring center via the dedicated network transmission module 26, ensuring the integrity of the data received by the online monitoring center and facilitating future analysis of the grounding box's operating status.

[0034] The working principle and process are as follows:

[0035] Based on the actual operational needs of the line, maintenance personnel select the sensors to be installed and insert the sensor's USB plug into the USB port 9 of the intelligent data acquisition unit in the grounding box or the USB interface 10 of the standardized function module in the expansion area. The system will automatically identify the sensor type and complete the configuration. At the same time, based on data confidentiality requirements, they can choose whether to install the secure encrypted communication module 24.

[0036] During normal operation, various sensors collect data on temperature, humidity, grounding current, partial discharge, vibration, etc., within the enclosure in real time, and transmit the data to the grounding enclosure intelligent data collector 19 and the standardized functional module 20 in the expansion area. The collected data is transmitted to the data cleaning module 22 via the data bus 21. The data cleaning module 22 filters and preprocesses the data, removing noise and interference signals, and then transmits the valid data to the data storage device 23 for local storage and to the data intelligent analysis module 27 for real-time analysis.

[0037] If the secure encrypted communication module 24 is installed, the data will be encrypted by the secure encrypted communication module 24 before being transmitted to the online monitoring center via the dedicated network transmission module 26. The online monitoring center will further analyze and process the data, generate equipment operation status reports, and issue alarms when anomalies are detected.

[0038] When the dedicated network fails, the system automatically switches to emergency communication mode. The data intelligent analysis module 27 continues to analyze the collected data, and when abnormal data is detected, it immediately sends alarm information to the mobile phones of maintenance personnel via the transmission communication module 28. Simultaneously, all collected data continues to be stored in the data storage device 23. When the dedicated network is restored, the system automatically retransmits all data stored during the failure period to the online monitoring center, ensuring data continuity and integrity.

[0039] When a sensor fails, maintenance personnel only need to open the front cover, remove the damaged sensor, and insert a new sensor to complete the replacement. The whole process takes no more than 5 minutes, requires no power outage, and does not require replacing the entire grounding box.

[0040] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

Claims

1. A pluggable, state-sensing intelligent cable grounding box, comprising a front cover and a box body, wherein the front cover and the box body are detachably connected by bolts, characterized in that: The front cover is transparent, and an insulating baffle (4) is provided inside the box to divide the internal space of the box into an upper equipment area (5) and a lower electronic circuit board placement area (6). The equipment area (5) is equipped with a voltage limiter (7), a cross-connect metal busbar (8), a coaxial cable (16), a grounding box intelligent data acquisition device USB port (9), and an expansion area standardized function module USB interface (10); the grounding box intelligent data acquisition device USB port (9) and the expansion area standardized function module USB interface (10) can be plugged into and detached to be connected to a status sensing sensor; An electronic circuit board (18) is fixed in the electronic circuit board placement area (6).

2. The pluggable state-sensing intelligent cable grounding box according to claim 1, characterized in that, The state sensing sensors include a pluggable temperature sensor (11), a pluggable humidity sensor (12), a pluggable circulating current sensor (13), a pluggable partial discharge sensor (14), and a pluggable vibration sensor (15).

3. The pluggable state-sensing intelligent cable grounding box according to claim 2, characterized in that, The pluggable temperature sensor (11) and pluggable humidity sensor (12) are both composed of a sensor body, a connecting wire, and a USB plug. The sensor body is attached to the upper inner wall of the device area (5). The pluggable circulating current sensor (13) is composed of a flexible Rogowski coil, a signal processing unit, and a USB plug. The flexible Rogowski coil is sleeved on the cross-connected metal busbar (8) through a snap-fit ​​structure. The pluggable partial discharge sensor (14) is composed of an ultra-high frequency antenna, a signal conditioning unit, and a USB plug. The ultra-high frequency antenna is fixed to the upper end of the coaxial cable (16) through a snap-fit ​​structure. The pluggable vibration sensor (15) is composed of a piezoelectric vibration probe, a signal amplification unit, and a USB plug. The piezoelectric vibration probe is fixed to the middle of the coaxial cable (16) through a binding structure.

4. The pluggable state-sensing intelligent cable grounding box according to claim 1, characterized in that, The electronic circuit board (18) integrates a grounding box intelligent data acquisition unit (19), an expansion area standardized function module (20), a data bus (21), a data cleaning module (22), a data storage unit (23), a card slot (25), a dedicated network transmission module (26), a data intelligent analysis module (27), and a transmission communication module (28). The grounding box intelligent data acquisition device USB port (9) and the expansion area standardized function module USB interface (10) are respectively connected to the grounding box intelligent data acquisition device (19) and the expansion area standardized function module (20); the output terminals of the grounding box intelligent data acquisition device (19) and the expansion area standardized function module (20) are both connected to the data bus (21); the output terminal of the data bus (21) is connected to the input terminal of the data cleaning module (22), and the output terminal of the data cleaning module (22) is respectively connected to the input terminal of the data storage device (23) and the data intelligent analysis module (27); the card slot (25) is used for pluggable installation of the security encryption communication module (24), the output terminal of the security encryption communication module (24) is connected to the input terminal of the dedicated network transmission module (26); the output terminal of the data intelligent analysis module (27) is connected to the input terminal of the transmission communication module (28); the dedicated network transmission module (26) is used to connect to the power dedicated communication network, and the transmission communication module (28) is used to connect to the public network communication network.

5. The pluggable state-sensing intelligent cable grounding box according to claim 1, characterized in that, The front cover includes tempered glass (1) and a stainless steel frame (2). The tempered glass (1) is embedded in the middle of the stainless steel frame (2), and the tempered glass (1) and the stainless steel frame (2) are bonded and fixed together by insulating sealant. The stainless steel frame (2) is provided with a plurality of bolt holes (3) evenly distributed around its circumference.

6. The pluggable state-sensing intelligent cable grounding box according to claim 1, characterized in that, A display screen (17) is also fixedly installed in the equipment area (5). The display screen (17) is connected to the grounding box intelligent data collector (19) through a ribbon cable and is used to display the data values ​​collected by all status sensing sensors and the operating status of the equipment in real time.

Images