External feeder automation terminal local wireless operation and maintenance device

Abstract

The utility model provides an external feeder automation terminal local wireless operation and maintenance device, which belongs to the field of power distribution network feeder automation terminal intelligence, and comprises a device body and a network communication aviation plug, and the device body is connected to a communication aviation socket of a feeder automation terminal through the network communication aviation plug. The device body comprises a Bluetooth module, a central processing unit, a network communication module and a power module, the central processing unit is connected with the Bluetooth module, the power module is connected to the network communication aviation plug and the central processing unit, and the network communication module comprises a chip U17. A first pin, a second pin, a fifth pin, a sixth pin, a twenty-fifth pin and a twenty-seventh pin of the chip U17 are all connected to the network communication aviation plug, and a thirty-second pin, a thirty-third pin, a thirty-fourth pin, a thirty-fifth pin, a thirty-sixth pin and a thirty-seventh pin of the chip U17 are all connected to the central processing unit; and operation and maintenance personnel do not need to climb the pole.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent feeder automation terminals in the distribution network, and particularly relates to an external wireless operation and maintenance device for a feeder automation terminal. Background Art

[0002] With the large-scale construction of the new power system, the 10kV distribution network is an important grid for energy distribution. In China, the distribution network still mainly consists of overhead lines. Line faults caused by uncertain factors such as the external environment, climate, and construction of the 10kV overhead lines will lead to a reduction in power supply reliability. The 10kV integrated primary and secondary pole-mounted circuit breaker equipment has functions such as line sectioning and fault isolation, and is one of the main equipment for improving the power supply reliability of the 10kV distribution line. The 10kV integrated primary and secondary pole-mounted circuit breaker is generally installed at high-altitude positions such as cement poles and iron towers on the 10kV distribution line.

[0003] At the same time, with the continuous improvement of the practical application level of distribution automation FA, the requirements for the workload of on-site automation maintenance and the defect elimination rate index of the distribution network are both increasing. At present, for the operation and maintenance work of on-site feeder automation terminals, most can be quickly judged and processed by viewing the operation data of the on-site feeder automation terminals. There are mainly the following problems with the operation and maintenance methods and means:

[0004] (1) Pole climbing for operation and maintenance. When the equipment is under operation and maintenance, the operation and maintenance personnel need to climb the pole and insert a wired serial port cable or network cable into the feeder automation terminal to import and export historical data, operation parameters, operation logs, etc. There are often many obstacles around the pole tower, which increases the potential safety hazards and complexity of operation and maintenance.

[0005] (2) There is no unified local wireless operation and maintenance solution. Some feeder automation terminal manufacturers may have reserved a local wireless operation and maintenance solution, but it cannot be compatible with products of other manufacturers.

[0006] (3) It cannot be plug-and-play. Users cannot plug and use it as needed and conveniently remove it when not in use.

[0007] In summary, the existing wireless operation and maintenance means and methods for the feeder automation terminals of the 10kV integrated primary and secondary pole-mounted circuit breaker equipment are not convenient and have great difficulty in practical promotion, which greatly increases the operation and maintenance difficulty and complexity of the feeder automation terminals. Especially, the frequent pole climbing by operation and maintenance personnel increases the potential safety hazards. Summary of the Utility Model

[0008] The technical problem to be solved by the utility model is how to avoid the potential safety hazards brought by pole climbing for operation and maintenance when maintaining the feeder automation terminal.

[0009] The utility model solves the above technical problems through the following technical solutions: An external feeder automation terminal local wireless operation and maintenance device, including a device body and a network communication aviation plug. The device body is connected to the communication aviation socket of the feeder automation terminal through the network communication aviation plug. The device body includes a Bluetooth module, a central processor, a network communication module, and a power module. The central processor is connected to the Bluetooth module. The power module is respectively connected to the network communication aviation plug and the central processor. The network communication module includes a chip U17. The first pin, second pin, fifth pin, sixth pin, twenty-fifth pin, and twenty-seventh pin of the chip U17 are all connected to the network communication aviation plug. The thirty-second pin, thirty-third pin, thirty-fourth pin, thirty-fifth pin, thirty-sixth pin, and thirty-seventh pin of the chip U17 are all connected to the central processor.

[0010] The wireless operation and maintenance device of the utility model is designed based on the communication aviation plug. The network communication aviation plug is inserted into the communication aviation socket of the feeder automation terminal. The wireless operation and maintenance device is installed on the feeder automation terminal in an external manner. It can be pre-installed on the feeder automation terminal or plugged in for use when needed. When the operation and maintenance personnel perform operation and maintenance on the equipment, the operation and maintenance personnel only need to carry a client. The data of the feeder automation terminal is transmitted to the chip U17 of the network communication module through the network communication aviation plug, and the data is sent to the operation and maintenance client through the Bluetooth module by the central processor. The data received by the Bluetooth module is transmitted to the feeder automation terminal through the central processor and the chip U17, so as to realize the import and export of historical data, operation parameters, operation logs, etc. on the feeder automation terminal. There is no need for the operation and maintenance personnel to climb the pole for operation, and it will not cause difficult operation and maintenance problems due to obstacles around the pole, greatly ensuring the personal safety of the operation and maintenance personnel. In addition, the time for climbing the pole for operation is reduced, and the efficiency of equipment operation and maintenance can be greatly improved.

[0011] Optimally, the network communication aviation plug includes a DC input interface and an RJ45 network communication interface. The power module is connected to the DC power supply built in the feeder automation terminal through the DC input interface. The network communication module is connected to the communication aviation socket of the feeder automation terminal through the RJ45 network communication interface.

[0012] Optimally, the first pin, second pin, fifth pin, sixth pin, twenty-fifth pin, and twenty-seventh pin of the chip U17 are all connected to the RJ45 network communication interface.

[0013] Optimized, the network communication module further includes bidirectional diodes ESD9, ESD10, ESD11, and ESD12. The first pin of chip U17 is grounded after being connected in series with bidirectional diode ESD10. The second pin of chip U17 is grounded after being connected in series with bidirectional diode ESD9. The fifth pin of chip U17 is grounded after being connected in series with bidirectional diode ESD12. The sixth pin of chip U17 is grounded after being connected in series with bidirectional diode ESD11.

[0014] Optimized, the central processing unit (12) includes a main control chip U5, a crystal oscillator, capacitors C12, C13, C18, C20, C25, C181, and C241. The second and fourth pins of the crystal oscillator are connected to one end of capacitor C12 and then grounded. The first pin of the crystal oscillator is connected to the other end of capacitor C12. The third pin of the crystal oscillator is respectively connected to the sixth pin of the main control chip U5 and one end of capacitor C13. The other end of capacitor C13 is grounded. One end of resistor R13 is respectively connected to one end of capacitor C18, one end of capacitor C20, and the seventh pin of the main control chip U5. The other end of resistor R13 is connected to the +3.3V voltage. The other ends of capacitor C18 and capacitor C20 are connected together and then grounded. The tenth pin of the main control chip U5 is connected to the thirty-fourth pin of chip U17. The eleventh pin of the main control chip U5 is connected to the thirty-fifth pin of chip U17. The thirteenth pin of the main control chip U5 is respectively connected to one end of capacitor C181, one end of capacitor C25, and the +3.3V voltage. The other ends of capacitor C181 and capacitor C25 are connected together and then grounded. The twenty-third pin of the main control chip U5 is connected to the thirty-sixth pin of chip U17. The twenty-fourth pin of the main control chip U5 is connected to the thirty-seventh pin of chip U17. The thirtieth pin of the main control chip U5 is grounded after being connected in series with capacitor C241. The thirty-first pin of the main control chip U5 is grounded. The thirty-third pin of the main control chip U5 is connected to the thirty-second pin of chip U17. The thirty-fourth pin of the main control chip U5 is connected to the thirty-third pin of chip U17.

[0015] Optimized, the Bluetooth module includes chip U1 and antenna J4. The model of chip U1 is SC1475A2. The seventh and ninth pins of chip U1 are connected together and then connected to the DC power supply. The eleventh pin of chip U1 is connected to the forty-first pin of the main control chip U5. The seventeenth pin of chip U1 is connected to the forty-third pin of the main control chip U5. The eighteenth pin of chip U1 is connected to the forty-second pin of the main control chip U5. The eighth, tenth, twenty-seventh, and twenty-ninth pins of chip U1 are all grounded. The twenty-eighth pin of chip U1 is connected to the first pin of antenna J4. The second, third, and fourth pins of antenna J4 are connected together and then connected to the twenty-ninth pin of chip U1.

[0016] Optimized, the fourth, eighth, eleventh, fifteenth, seventeenth, and twenty-first pins of the chip U17 are connected and then respectively connected to one end of capacitors C79, C83, E6, C80, C84, C85, and inductor L7. The other ends of capacitors C79, C83, E6, C80, C84, C85 are connected and then grounded. One ends of capacitors C81, C82, E5 are connected and then connected to the other end of inductor L7. The other ends of capacitors C81, C82, E5 are connected and then grounded. The other end of inductor L7 is connected to a DC power supply. The twentieth pin of the chip U17 is grounded after being connected in series with capacitor C72. The forty-third pin of the chip U17 is connected to +3.3V voltage after being connected in series with resistor R73. The forty-fourth pin of the chip U17 is connected to +3.3V voltage after being connected in series with resistor R74. The forty-fifth pin of the chip U17 is connected to +3.3V voltage after being connected in series with resistor R75. The tenth pin of the chip U17 is grounded after being connected in series with resistor R78. The thirtieth pin of the chip U17 is respectively connected to one end of capacitor C76, the first pin of crystal oscillator LFX4, and one end of resistor R83. The other end of capacitor C76 is respectively connected to the second pin, fourth pin of crystal oscillator LFX4, and one end of capacitor C78. The other end of capacitor C78 is respectively connected to the third pin of crystal oscillator LFX4, the other end of resistor R83, and one end of resistor R86. The other end of resistor R86 is connected to the thirty-first pin of the chip U17. The second pin of crystal oscillator LFX4 is grounded. The thirty-seventh pin of the chip U17 is also respectively connected to one end of resistor R92 and one end of capacitor C86. The other end of resistor R92 is connected to the DC power supply. The other end of capacitor C86 is grounded.

[0017] Optimized, the power supply module includes a voltage regulator chip U2, resistors R1, R7, R8, R9, R10, capacitors C1, C5, C6, C7, E2, E5, an inductor L1, a diode D1, a bidirectional diode D5, and a light-emitting diode LED8. The first pin of the voltage regulator chip U2 is connected to one end of the capacitor C1. The other end of the capacitor C1 is respectively connected to one end of the inductor L1, the cathode of the diode D1, and the eighth pin of the voltage regulator chip U2. The other end of the inductor L1 is respectively connected to one end of the resistor R1, one end of the resistor R7, the positive electrode of the capacitor E2, one end of the capacitor C2, one end of the capacitor C5, and one end of the bidirectional diode D5. The anode of the diode D1 is respectively connected to the seventh pin, the ninth pin of the voltage regulator chip U2, one end of the capacitor C6, and one end of the resistor R8. The other end of the capacitor C6 is connected to the sixth pin of the voltage regulator chip U2. The other end of the resistor R8 is respectively connected to one end of the resistor R9 and the fifth pin of the voltage regulator chip U2. The other end of the resistor R9 is connected to the other end of the resistor R1. The other ends of the capacitors E2, C2, and C5 are connected to the other end of the bidirectional diode D5 and then grounded. The other end of the resistor R7 is connected in series with the light-emitting diode LED8 and then grounded. The second pin of the voltage regulator chip U2 is respectively connected to one end of the capacitor E5 and one end of the capacitor C7. The other ends of the capacitor E5 and the capacitor C7 are connected together and then grounded. The fourth pin of the voltage regulator chip U2 is connected in series with the resistor R10 and then grounded.

[0018] Optimized, it further includes an operation and maintenance client. The operation and maintenance client is equipped with an operation and maintenance software middleware. The operation and maintenance software middleware includes a network configuration module, a Bluetooth pairing and connection module, a device configuration module, and a message interaction monitoring area. The network configuration module is used to realize data interaction between the wireless operation and maintenance device and the operation and maintenance software of different manufacturers. The Bluetooth pairing and connection module is used for Bluetooth search and pairing to realize the connection between the operation and maintenance client and the wireless operation and maintenance device. The device configuration module is used to set the parameters of the Bluetooth module and the network communication module. The message interaction monitoring area is used to display the interacted data.

[0019] Optimized, the model of the chip U17 is W5500.

[0020] The advantages provided by the present utility model are as follows:

[0021] 1. The wireless operation and maintenance device of the present utility model is designed based on a communication aviation plug. The network communication aviation plug is inserted into the communication aviation socket of the feeder automation terminal. The wireless operation and maintenance device is installed on the feeder automation terminal in an external manner. It can be pre-installed on the feeder automation terminal or plugged in for use when needed. When the operation and maintenance personnel perform operation and maintenance on the equipment, they only need to carry a client. The data of the feeder automation terminal is transmitted to the chip U17 of the network communication module through the network communication aviation plug, and then the data is sent to the operation and maintenance client through the central processing unit via the Bluetooth module. The data received by the Bluetooth module is transmitted to the feeder automation terminal through the central processing unit and the chip U17, so as to realize the import and export of historical data, operation parameters, operation logs, etc. on the feeder automation terminal, without the need for the operation and maintenance personnel to climb the pole for operation, and it will not cause difficult operation and maintenance problems due to obstacles around the pole, greatly ensuring the personal safety of the operation and maintenance personnel. In addition, the time for climbing the pole operation is reduced, and the efficiency of equipment operation and maintenance can be greatly improved.

[0022] 2. The wireless operation and maintenance device can be pre-installed on the feeder automation terminal or plugged in for use when needed. The wireless operation and maintenance device and the operation and maintenance software middleware can be plug-and-play with the feeder automation terminals of any manufacturer that meet the standard network port aviation plug, with a unified and standardized interface, without the need to add additional interfaces, unifying the operation and maintenance method, being compatible with the equipment of each manufacturer, facilitating the operation and maintenance personnel to use when operating and maintaining the equipment of different manufacturers, and reducing the complexity of operating and maintaining the equipment of each manufacturer.

[0023] 3. The present utility model adopts a wireless operation and maintenance method to realize the wireless operation and maintenance of feeder automation terminals of different manufacturers, providing technical support for digital operation and maintenance, and greatly improving the operation and maintenance efficiency, social benefits and safety benefits of power operation and maintenance personnel. Brief Description of the Drawings

[0024] Figure 1 It is an installation schematic diagram of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0025] Figure 2 It is a structural schematic diagram of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0026] Figure 3 It is a front view of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0027] Figure 4 It is a side view of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0028] Figure 5Schematic diagram of the device body in the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0029] Figure 6 Schematic diagram of the physical connection method of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0030] Figure 7 Schematic diagram of the data interaction method of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0031] Figure 8 Circuit diagram of the Bluetooth module in the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0032] Figure 9 Circuit diagram of the central processing unit in the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0033] Figure 10 Circuit diagram of the network communication module in the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0034] Figure 11 Circuit diagram of the power supply module in the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0035] Figure 12 Schematic diagram of the operation and maintenance software middleware of the external feeder automation terminal local wireless operation and maintenance device provided by the present utility model;

[0036] In the figure: 10 device body, 11 Bluetooth module, 12 central processing unit, 13 network communication module, 14 power supply module, 20 network communication aviation plug, 21 DC input interface, 22 RJ45 network communication interface, 30 feeder automation terminal, 40 operation and maintenance client, 41 operation and maintenance software middleware, 411 network configuration module, 412 Bluetooth pairing and connection module, 413 device configuration module, 414 message interaction monitoring area. Detailed implementation manners

[0037] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the following combines specific embodiments and refers to the accompanying drawings to clearly and completely describe the technical solutions of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the protection scope of the present utility model.

[0038] As Figures 1-7As shown in the figure, this embodiment provides an external feeder automation terminal local wireless operation and maintenance device, which includes a device body 10 and a network communication aviation plug 20. The device body 10 is connected to the communication aviation socket of the feeder automation terminal 30 through the network communication aviation plug 20. The device body 10 includes a Bluetooth module 11, a central processor 12, a network communication module 13, and a power module 14. The central processor 12 is connected to the Bluetooth module 11. The power module 14 is respectively connected to the network communication aviation plug 20 and the central processor 12. The network communication module 13 includes a chip U17. The first pin, second pin, fifth pin, sixth pin, twenty-fifth pin, and twenty-seventh pin of the chip U17 are all connected to the network communication aviation plug 20. The thirty-second pin, thirty-third pin, thirty-fourth pin, thirty-fifth pin, thirty-sixth pin, and thirty-seventh pin of the chip U17 are all connected to the central processor 12.

[0039] The wireless operation and maintenance device of the present utility model is designed based on the communication aviation plug. The network communication aviation plug 20 is inserted into the communication aviation socket of the feeder automation terminal 30. The wireless operation and maintenance device is installed on the feeder automation terminal in an external manner. It can be pre-installed on the feeder automation terminal or plugged in for use when needed. When the operation and maintenance personnel perform operation and maintenance on the equipment, the operation and maintenance personnel only need to carry a client. The data of the feeder automation terminal is transmitted to the chip U17 of the network communication module 13 through the network communication aviation plug 20. The model of the chip U17 is W5500. The central processor 12 sends the data to the operation and maintenance client 40 through the Bluetooth module 11. The data received by the Bluetooth module 11 is transmitted to the feeder automation terminal through the central processor 12 and the chip U17, so as to realize the import and export of historical data, operation parameters, operation logs, etc. on the feeder automation terminal, without the operation and maintenance personnel climbing the pole, and there will be no problem of difficult operation and maintenance due to obstacles around the pole, which greatly guarantees the personal safety of the operation and maintenance personnel. In addition, the time for climbing the pole operation is reduced, and the efficiency of equipment operation and maintenance can be greatly improved.

[0040] Since there is a DC power supply on the network interface of the feeder automation terminal 30, the wireless operation and maintenance device can work for a long time after obtaining power. The central processor 12 is used to configure the parameters of the network communication module 13 and the Bluetooth module 11. The power module 14 is used to supply power to the central processor 12.

[0041] The operation and maintenance client 40 is equipped with an operation and maintenance software middleware 41, which is used to perform Bluetooth search and connection on the wireless operation and maintenance device. Each time the wireless operation and maintenance device is powered on and runs, it will interact with the inherent parameters of the feeder automation terminal body to generate a Bluetooth name corresponding to the feeder automation terminal. When the operation and maintenance personnel need to maintain the equipment with a wireless operation and maintenance device, they can turn on the operation and maintenance software middleware 41 of the operation and maintenance client 40 to perform Bluetooth search and connection on the wireless operation and maintenance device. At the same time, open the virtual server for data forwarding in the operation and maintenance software middleware 41. The operation and maintenance software of different manufacturers can connect to the virtual server to read and download the data of the feeder automation terminal. The operation and maintenance personnel can maintain the feeder automation terminal without climbing the pole, improving the convenience and safety of operation and maintenance. The wireless operation and maintenance device is plug-and-play, with a unified and standardized interface, and no additional interface needs to be added, greatly improving the operation and maintenance efficiency, social benefits and safety benefits of power operation and maintenance personnel.

[0042] Refer to Figure 4 , the network communication aviation plug 20 includes a DC input interface 21 and an RJ45 network communication interface 22. The power module 14 is connected to the DC power supply built in the feeder automation terminal 30 through the DC input interface 21, and the network communication module 13 is connected to the communication aviation socket of the feeder automation terminal 30 through the RJ45 network communication interface 22. In this embodiment, the feeder automation terminal generally uses an aviation plug to connect to the circuit breaker body and other external devices. The feeder automation terminal has a communication aviation socket that can provide a DC24V DC power supply. The present invention is designed based on the network communication aviation plug. The network communication aviation plug 20 of the wireless operation and maintenance device is inserted into the communication aviation socket of the feeder automation terminal 30 to obtain the operating power through the DC24V DC power supply. After the wireless operation and maintenance device obtains the power, it can work for a long time. Each time the wireless operation and maintenance device is powered on and runs, it will interact with the inherent parameters of the feeder automation terminal 30 body to generate a Bluetooth name corresponding to the feeder automation terminal, which is convenient for the operation and maintenance personnel to search and connect.

[0043] Specifically, after the wireless operation and maintenance device starts to run, turn on the network communication module 13 to the client mode, automatically connect to the feeder automation terminal 30, read the inherent parameters of the feeder automation terminal 30 through the distribution network protocol, generate a Bluetooth name from the device ID code in the inherent parameters. When the operation and maintenance personnel need to maintain the feeder automation terminal, they can search for the Bluetooth corresponding to the device ID on the ground for pairing to perform full-data operation and maintenance on the feeder automation terminal.

[0044] Such as Figure 8As shown in the figure, the Bluetooth module 11 includes a chip U1 and an antenna J4. The model of the chip U1 is SC1475A2. The seventh pin and the ninth pin of the chip U1 are connected and then connected to a DC power supply. The eleventh pin of the chip U1 is connected to the forty-first pin of the main control chip U5 in the central processor 12. The seventeenth pin of the chip U1 is connected to the forty-third pin of the main control chip U5 in the central processor 12. The eighteenth pin of the chip U1 is connected to the forty-second pin of the main control chip U5 in the central processor 12. The eighth pin, the tenth pin, the twenty-seventh pin and the twenty-ninth pin of the chip U1 are all grounded. The twenty-eighth pin of the chip U1 is connected to the first pin of the antenna J4. The second pin, the third pin and the fourth pin of the antenna J4 are connected and then connected to the twenty-ninth pin of the chip U1.

[0045] As Figure 9 As shown in the figure, the central processor 12 includes a main control chip U5, a crystal oscillator, capacitors C12, C13, C18, C20, C25, C181, C241. The model of the main control chip U5 is STM32F401RCT6. The second pin and the fourth pin of the crystal oscillator are connected to one end of the capacitor C12 and then grounded. The first pin of the crystal oscillator is connected to the other end of the capacitor C12. The third pin of the crystal oscillator is respectively connected to the sixth pin of the main control chip U5 and one end of the capacitor C13. The other end of the capacitor C13 is grounded. One end of the resistor R13 is respectively connected to one end of the capacitor C18, one end of the capacitor C20 and the seventh pin of the main control chip U5. The other end of the resistor R13 is connected to the +3.3V voltage. The other ends of the capacitor C18 and the capacitor C20 are connected and then grounded. The tenth pin of the main control chip U5 is connected to the thirty-fourth pin of the chip U17 in the network communication module 13. The eleventh pin of the main control chip U5 is connected to the thirty-fifth pin of the chip U17 in the network communication module 13. The thirteenth pin of the main control chip U5 is respectively connected to one end of the capacitor C181, one end of the capacitor C25 and the +3.3V voltage. The other ends of the capacitor C181 and the capacitor C25 are connected and then grounded. The twenty-third pin of the main control chip U5 is connected to the thirty-sixth pin of the chip U17 in the network communication module 13. The twenty-fourth pin of the main control chip U5 is connected to the thirty-seventh pin of the chip U17 in the network communication module 13. The thirtieth pin of the main control chip U5 is grounded after being connected in series with the capacitor C241. The thirty-first pin of the main control chip U5 is grounded. The thirty-third pin of the main control chip U5 is connected to the thirty-second pin of the chip U17. The thirty-fourth pin of the main control chip U5 is connected to the thirty-third pin of the chip U17.

[0046] As Figure 10As shown, the network communication module 13 further includes bilateral diodes ESD9, ESD10, ESD11, ESD12. The first pin, second pin, fifth pin, sixth pin, twenty-fifth pin, and twenty-seventh pin of chip U17 are all connected to the RJ45 communication interface 22 of the network port. The first pin of chip U17 is connected to ground after being in series with bilateral diode ESD10. The second pin of chip U17 is connected to ground after being in series with bilateral diode ESD9. The fifth pin of chip U17 is connected to ground after being in series with bilateral diode ESD12. The sixth pin of chip 17 is connected to ground after being in series with bilateral diode ESD11. The twenty-eighth pin is connected to the DC power supply. The thirty-sixth pin of chip U17 is connected to the twenty-third pin of the main control chip U5 in the central processor 12. The thirty-seventh pin of chip U17 is connected to the twenty-fourth pin of the main control chip U5 in the central processor 12. The thirty-seventh pin of chip U17 is also respectively connected to one end of resistor R92 and one end of capacitor C86. The other end of resistor R92 is connected to the DC power supply. The other end of capacitor C86 is connected to ground. The fourth pin, eighth pin, eleventh pin, fifteenth pin, seventeenth pin, and twenty-first pin of chip U17 are connected together and then respectively connected to one end of capacitors C79, C83, E6, C80, C84, C85, and inductor L7. The other ends of capacitors C79, C83, E6, C80, C84, C85 are connected together and then connected to ground. One ends of capacitors C81, C82, E5 are connected together and then connected to the other end of inductor L7. The other ends of capacitors C81, C82, E5 are connected together and then connected to ground. The other end of inductor L7 is connected to the DC power supply. The forty-third pin of chip U17 is connected to +3.3V voltage after being in series with resistor R73. The forty-fourth pin of chip U17 is connected to +3.3V voltage after being in series with resistor R74. The forty-fifth pin of chip U17 is connected to +3.3V voltage after being in series with resistor R75. The tenth pin of chip U17 is connected to ground after being in series with resistor R78. The thirtieth pin of chip U17 is respectively connected to one end of capacitor C76, the first pin of crystal oscillator LFX4, and one end of resistor R83. The other end of capacitor C76 is respectively connected to the second pin, fourth pin of crystal oscillator LFX4, and one end of capacitor C78. The other end of capacitor C78 is respectively connected to the third pin of crystal oscillator LFX4, the other end of resistor R83, and one end of resistor R86. The other end of resistor R86 is connected to the thirty-first pin of chip U17. The second pin of crystal oscillator LFX4 is connected to ground. The twentieth pin of chip U17 is connected to ground after being in series with capacitor C72.

[0047] As Figure 11As shown, the power supply module 14 includes a voltage regulator chip U2, resistors R1, R7, R8, R9, R10, capacitors C1, C5, C6, C7, E2, E5, an inductor L1, a diode D1, a bidirectional diode D5, and a light-emitting diode LED8. The model of the voltage regulator chip U2 is LMR16030. The first pin of the voltage regulator chip U2 is connected to one end of the capacitor C1, and the other end of the capacitor C1 is respectively connected to one end of the inductor L1, the cathode of the diode D1, and the eighth pin of the voltage regulator chip U2. The other end of the inductor L1 is respectively connected to one end of the resistor R1, one end of the resistor R7, the positive electrode of the capacitor E2, one end of the capacitor C2, one end of the capacitor C5, and one end of the bidirectional diode D5. The anode of the diode D1 is respectively connected to the seventh pin, the ninth pin of the voltage regulator chip U2, one end of the capacitor C6, and one end of the resistor R8. The other end of the capacitor C6 is connected to the sixth pin of the chip U1. The other end of the resistor R8 is respectively connected to one end of the resistor R9 and the fifth pin of the voltage regulator chip U2. The other end of the resistor R9 is connected to the other end of the resistor R1. The other ends of the capacitors E2, C2, and C5 are connected to the other end of the bidirectional diode D5 and then grounded. The other end of the resistor R7 is connected in series with the light-emitting diode LED8 and then grounded. The second pin of the voltage regulator chip U2 is respectively connected to one end of the capacitor E5 and one end of the capacitor C7. The other ends of the capacitor E5 and the capacitor C7 are connected together and then grounded. The fourth pin of the voltage regulator chip U2 is connected in series with the resistor R10 and then grounded. The power supply module 14 outputs a 3.3V DC voltage to supply power to the system.

[0048] The central processing unit 12 is installed with software for encrypting and decrypting data. When the feeder automation terminal 30 and the operation and maintenance client 40 perform two-way data interaction, the data of the network communication module 13 is encrypted by the software and sent to the operation and maintenance client 40 through the Bluetooth module 11. When the Bluetooth module 11 receives the data, the data can be decrypted by the software, and the decrypted data is transmitted to the feeder automation terminal 30.

[0049] The operation and maintenance client 40 can adopt a PC computer, such as Figure 12 As shown, the operation and maintenance software middleware 41 includes a network configuration module 411, a Bluetooth pairing connection module 412, a device configuration module 413, and a message interaction monitoring area 414. The network configuration module 411 is used to realize the data interaction between the wireless operation and maintenance device and the operation and maintenance software of different manufacturers. The Bluetooth pairing connection module 412 is used for Bluetooth search and pairing to realize the connection between the PC computer and the wireless operation and maintenance device. The device configuration module 413 is used to set the parameters of the Bluetooth module 11 and the network communication module 13, including but not limited to the network communication IP, gateway, and Bluetooth pairing password. The message interaction monitoring area 414 is used to display the interactive data.

[0050] Specifically, the data interaction between the wireless operation and maintenance device and the operation and maintenance software of different manufacturers is achieved by enabling a virtual network communication port in the operation and maintenance software middleware 41. The mode is the server, and the IP is generally set to the IP of the feeder automation terminal. The operation and maintenance software of different manufacturers connects to the virtual server set by the operation and maintenance software middleware 41 through the virtual network. Once the operation and maintenance software of different manufacturers connects to the virtual server, it can read and download data from the feeder automation terminal. The operation and maintenance software of the feeder automation terminal manufacturer establishes a data interaction channel with the feeder automation terminal 30 through the operation and maintenance software middleware 41, the Bluetooth module 11, and the network communication module 13 of the wireless operation and maintenance device.

[0051] The data transmission between the Bluetooth pairing and connection module 412 of the PC and the Bluetooth module 11 of the wireless operation and maintenance device is in an encrypted coding form. The operation and maintenance software middleware 41 and the wireless operation and maintenance device perform security checks when receiving data. If the check passes, the data is considered legal; otherwise, it is regarded as invalid data, which can ensure the security of data transmission.

[0052] The wireless operation and maintenance device can be pre-installed on the feeder automation terminal. The operation and maintenance personnel pre-install the wireless operation and maintenance device before the equipment installation, and install the wireless operation and maintenance device on the operating equipment when the equipment is installed as a whole. It can also be plugged in and used when needed. The wireless operation and maintenance device and the operation and maintenance software middleware 41 can achieve plug-and-play with the feeder automation terminals of any manufacturer that meet the standard network port aviation plugs. The interfaces are unified and standardized, without the need to add additional interfaces, unifying the operation and maintenance method, being compatible with the equipment of various manufacturers, facilitating the operation and maintenance personnel to use when operating and maintaining the equipment of different manufacturers, and reducing the complexity of operating and maintaining the equipment of various manufacturers.

[0053] Working principle: Connect the operation and maintenance client 40 to the wireless operation and maintenance device. The wireless operation and maintenance device can either be pre-installed on the feeder automation terminal or be plugged in and used when needed. Insert the network communication aviation plug 20 of the wireless operation and maintenance device into the communication aviation socket of the feeder automation terminal 30. After the feeder automation terminal 30 is powered on, the wireless operation and maintenance device obtains the operating power. The operation and maintenance client 40 sets parameters for the Bluetooth module 11 and the network communication module 13, including but not limited to the network communication IP, gateway, and Bluetooth pairing password.

[0054] After the wireless operation and maintenance device starts running, the network communication module 13 is turned on to the client mode. The wireless operation and maintenance device automatically connects to the feeder automation terminal 30 and conducts inherent parameter interaction. The wireless operation and maintenance device reads the inherent parameters of the feeder automation terminal 30 through the distribution network protocol, generates a Bluetooth name from the device ID code in the inherent parameters. When the operation and maintenance personnel need to perform operation and maintenance on the feeder automation terminal, they search for the Bluetooth corresponding to the device ID on the ground for pairing, and then they can perform full-data operation and maintenance on the feeder automation terminal. Use the operation and maintenance software middleware 41 to search for the Bluetooth corresponding to the feeder automation terminal 30 for pairing, and the password is the pairing password set by the operation and maintenance client. Open the device operation and maintenance software, and the device operation and maintenance software establishes a data interaction channel with the feeder automation terminal 30 through the operation and maintenance software middleware 41, the Bluetooth module 11, and the network communication module 13. When using Bluetooth for data interaction, the operation and maintenance software middleware 41 and the wireless operation and maintenance device perform security checks when receiving data. If the check passes, the data is considered legal; otherwise, it is regarded as invalid data.

[0055] Enable the virtual network communication port in the operation and maintenance software middleware 41, with the mode being the server and the IP set to the IP of the feeder automation terminal. The device operation and maintenance software connects to the virtual server set by the operation and maintenance software middleware 41 through the virtual network, and then reads and downloads data from the feeder automation terminal 30.

[0056] 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 foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An external feeder automation terminal local wireless operation and maintenance device, characterized in that: It includes a device body (10) and a network communication aviation plug (20). The device body (10) is connected to the communication aviation socket of the feeder automation terminal through the network communication aviation plug (20). The device body (10) includes a Bluetooth module (11), a central processor (12), a network communication module (13) and a power supply module (14). The central processor (12) is connected to the Bluetooth module (11). The power supply module (14) is respectively connected to the network communication aviation plug (20) and the central processor (12). The network communication module (13) includes a chip U17. The first pin, the second pin, the fifth pin, the sixth pin, the twenty-fifth pin and the twenty-seventh pin of the chip U17 are all connected to the network communication aviation plug (20). The thirty-second pin, the thirty-third pin, the thirty-fourth pin, the thirty-fifth pin, the thirty-sixth pin and the thirty-seventh pin of the chip U17 are all connected to the central processor (12).

2. The local wireless operation and maintenance device for the external feeder automation terminal according to claim 1, characterized in that: The network communication aviation plug (20) includes a DC input interface (21) and an RJ45 network communication interface (22). The power supply module (14) is connected to the DC power supply built in the feeder automation terminal through the DC input interface (21). The network communication module (13) is connected to the communication aviation socket of the feeder automation terminal through the RJ45 network communication interface (22).

3. The local wireless operation and maintenance device for an external feeder automation terminal according to claim 2, characterized in that: The first pin, the second pin, the fifth pin, the sixth pin, the twenty-fifth pin and the twenty-seventh pin of the chip U17 are all connected to the RJ45 network communication interface (22).

4. The local wireless operation and maintenance device for the external feeder automation terminal according to claim 3, wherein: The network communication module (13) further includes bidirectional diodes ESD9, ESD10, ESD11, ESD12. The first pin of the chip U17 is grounded after being connected in series with the bidirectional diode ESD10. The second pin of the chip U17 is grounded after being connected in series with the bidirectional diode ESD9. The fifth pin of the chip U17 is grounded after being connected in series with the bidirectional diode ESD12. The sixth pin of the chip U17 is grounded after being connected in series with the bidirectional diode ESD11.

5. The local wireless operation and maintenance device for an external feeder automation terminal according to claim 1, wherein: The central processing unit (12) includes a main control chip U5, a crystal oscillator, capacitors C12, C13, C18, C20, C25, C181, and C241. The second and fourth pins of the crystal oscillator are connected to one end of capacitor C12 and then grounded. The first pin of the crystal oscillator is connected to the other end of capacitor C12. The third pin of the crystal oscillator is respectively connected to the sixth pin of the main control chip U5 and one end of capacitor C13. The other end of capacitor C13 is grounded. One end of resistor R13 is respectively connected to one end of capacitor C18, one end of capacitor C20, and the seventh pin of the main control chip U5. The other end of resistor R13 is connected to +3.3V voltage. The other ends of capacitor C18 and capacitor C20 are connected and then grounded. The tenth pin of the main control chip U5 is connected to the thirty-fourth pin of chip U17. The eleventh pin of the main control chip U5 is connected to the thirty-fifth pin of chip U17. The thirteenth pin of the main control chip U5 is respectively connected to one end of capacitor C181, one end of capacitor C25, and +3.3V voltage. The other ends of capacitor C181 and capacitor C25 are connected and then grounded. The twenty-third pin of the main control chip U5 is connected to the thirty-sixth pin of chip U17. The twenty-fourth pin of the main control chip U5 is connected to the thirty-seventh pin of chip U17. The thirtieth pin of the main control chip U5 is grounded after being connected in series with capacitor C241. The thirty-first pin of the main control chip U5 is grounded. The thirty-third pin of the main control chip U5 is connected to the thirty-second pin of chip U17. The thirty-fourth pin of the main control chip U5 is connected to the thirty-third pin of chip U17.

6. The local wireless operation and maintenance device for an external feeder automation terminal according to claim 5, characterized in that: The Bluetooth module (11) includes a chip U1 and an antenna J4. The model of chip U1 is SC1475A2. The seventh and ninth pins of chip U1 are connected and then connected to a DC power supply. The eleventh pin of chip U1 is connected to the forty-first pin of the main control chip U5. The seventeenth pin of chip U1 is connected to the forty-third pin of the main control chip U5. The eighteenth pin of chip U1 is connected to the forty-second pin of the main control chip U5. The eighth, tenth, twenty-seventh, and twenty-ninth pins of chip U1 are all grounded. The twenty-eighth pin of chip U1 is connected to the first pin of antenna J4. The second, third, and fourth pins of antenna J4 are connected and then connected to the twenty-ninth pin of chip U1.

7. The local wireless operation and maintenance device for the external feeder automation terminal according to claim 5, characterized in that: The fourth pin, eighth pin, eleventh pin, fifteenth pin, seventeenth pin, and twenty-first pin of the chip U17 are connected and then respectively connected to one end of capacitors C79, C83, E6, C80, C84, C85, and inductor L7. The other ends of capacitors C79, C83, E6, C80, C84, C85 are connected and then grounded. One ends of capacitors C81, C82, E5 are connected and then connected to the other end of inductor L7. The other ends of capacitors C81, C82, E5 are connected and then grounded. The other end of inductor L7 is connected to a DC power supply. The twentieth pin of the chip U17 is grounded after being connected in series with capacitor C72. The forty-third pin of the chip U17 is connected to +3.3V voltage after being connected in series with resistor R73. The forty-fourth pin of the chip U17 is connected to +3.3V voltage after being connected in series with resistor R74. The forty-fifth pin of the chip U17 is connected to +3.3V voltage after being connected in series with resistor R75. The tenth pin of the chip U17 is grounded after being connected in series with resistor R78. The thirtieth pin of the chip U17 is respectively connected to one end of capacitor C76, the first pin of crystal oscillator LFX4, and one end of resistor R83. The other end of capacitor C76 is respectively connected to the second pin, fourth pin of crystal oscillator LFX4, and one end of capacitor C78. The other end of capacitor C78 is respectively connected to the third pin of crystal oscillator LFX4, the other end of resistor R83, and one end of resistor R86. The other end of resistor R86 is connected to the thirty-first pin of the chip U17. The second pin of crystal oscillator LFX4 is grounded. The thirty-seventh pin of the chip U17 is also respectively connected to one end of resistor R92 and one end of capacitor C86. The other end of resistor R92 is connected to a DC power supply. The other end of capacitor C86 is grounded.

8. The local wireless operation and maintenance device for an external feeder automation terminal according to claim 3, wherein: The power supply module (14) includes a voltage regulator chip U2, resistors R1, R7, R8, R9, R10, capacitors C1, C5, C6, C7, E2, E5, an inductor L1, a diode D1, a bidirectional diode D5, and a light-emitting diode LED8. The first pin of the voltage regulator chip U2 is connected to one end of the capacitor C1. The other end of the capacitor C1 is respectively connected to one end of the inductor L1, the cathode of the diode D1, and the eighth pin of the voltage regulator chip U2. The other end of the inductor L1 is respectively connected to one end of the resistor R1, one end of the resistor R7, the positive electrode of the capacitor E2, one end of the capacitor C2, one end of the capacitor C5, and one end of the bidirectional diode D5. The anode of the diode D1 is respectively connected to the seventh pin, the ninth pin of the voltage regulator chip U2, one end of the capacitor C6, and one end of the resistor R8. The other end of the capacitor C6 is connected to the sixth pin of the voltage regulator chip U2. The other end of the resistor R8 is respectively connected to one end of the resistor R9 and the fifth pin of the voltage regulator chip U2. The other end of the resistor R9 is connected to the other end of the resistor R1. The other ends of the capacitors E2, C2, C5 and the other end of the bidirectional diode D5 are connected together and then grounded. The other end of the resistor R7 is connected in series with the light-emitting diode LED8 and then grounded. The second pin of the voltage regulator chip U2 is respectively connected to one end of the capacitor E5 and one end of the capacitor C7. The other ends of the capacitor E5 and the capacitor C7 are connected together and then grounded. The fourth pin of the voltage regulator chip U2 is connected in series with the resistor R10 and then grounded.

9. The local wireless operation and maintenance device for the external feeder automation terminal according to claim 1, characterized in that: It further includes an operation and maintenance client (40). The operation and maintenance client (40) is equipped with an operation and maintenance software middleware (41). The operation and maintenance software middleware (41) includes a network configuration module (411), a Bluetooth pairing and connection module (412), a device configuration module (413), and a message interaction monitoring area (414). The network configuration module (411) is used to realize data interaction between the wireless operation and maintenance device and the operation and maintenance software of different manufacturers. The Bluetooth pairing and connection module (412) is used to search for and pair Bluetooth to realize the connection between the operation and maintenance client (40) and the wireless operation and maintenance device. The device configuration module (413) is used to set the parameters of the Bluetooth module (11) and the network communication module (13). The message interaction monitoring area (414) is used to display the interactive data.

10. The local wireless operation and maintenance device for the external feeder automation terminal according to claim 7, characterized in that: The model of the chip U17 is W5500.

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