Magnet power supply local control system convenient to operate and maintain

Abstract

The utility model discloses a magnet power supply local control system convenient for operation and maintenance, which comprises a plurality of groups of magnet power supplies provided with network cable interfaces, and an all-in-one machine provided with a touch screen, a main control module, an Ethernet port module and a network cable interface, the touch screen is connected with the main control module, the main control module is connected with the Ethernet port module, and the network cable interface is connected with the Ethernet port module. And the Ethernet port module is respectively and independently connected with the network cable interfaces of the magnet power supply through network cables connected with the network cable interfaces. According to the utility model, a plurality of magnet power supplies are locally monitored in an RS485 interface polling mode, and a single magnet power supply is monitored in an Ethernet communication mode, so that the operation and maintenance efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of power supply control systems, and in particular to a magnet power supply control system which is easy to operate and maintain. Background Art

[0002] The magnet power supply is an important component of the accelerator. The magnet power supply provides adjustable excitation current to the magnets distributed everywhere, allowing the accelerator to obtain the stable magnetic field structure required by physics and control the trajectory of particle motion. A good design of the magnet power supply control system is a prerequisite for improving the power supply efficiency. Therefore, it is of great significance to design a magnet power supply control system that is easy to operate and maintain. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art to at least a certain extent. To this end, one purpose of the utility model is to propose a magnet power supply control system that is easy to operate and maintain, which uses an RS485 interface polling method to realize local monitoring of multiple magnet power supplies, and uses an Ethernet communication method to monitor a single magnet power supply, which greatly improves the operation and maintenance efficiency.

[0004] According to the utility model, a magnet power supply control system that is easy to operate and maintain is proposed, including multiple groups of magnet power supplies provided with network cable interfaces, and also including an all-in-one machine provided with a touch screen, a main control module, an Ethernet port module and a network cable interface. The touch screen is connected to the main control module, the main control module is connected to the Ethernet port module, and the Ethernet port modules are separately connected to the network cable interfaces of the magnet power supply through network cables connected to the network cable interface.

[0005] Preferably, the Ethernet port module includes an Ethernet port control circuit, a network transformer circuit, a forward low-dropout voltage regulator circuit and a four-channel low-capacitance ESD suppressor circuit, the forward low-dropout voltage regulator circuit is externally connected to an input power supply, the output end of the forward low-dropout voltage regulator circuit is respectively connected to the power input end of the Ethernet port control circuit and the power input end of the network transformer circuit, the Ethernet port control circuit is connected to the network transformer circuit, and the four-channel low-capacitance ESD suppressor circuit is respectively connected to the Ethernet port control circuit and the network transformer circuit.

[0006] Preferably, a main controller is provided inside the main control module, an Ethernet control chip U20 is provided inside the Ethernet port control circuit, a network transformer U6 is provided inside the network transformer circuit, and a four-channel low-capacitance ESD suppressor U10 is provided inside the four-channel low-capacitance ESD suppressor circuit. The SPI interface of the Ethernet control chip U20 is connected to the main controller, and the Ethernet control chip U20, the network transformer U6 and the four-channel low-capacitance ESD suppressor U10 are respectively connected through corresponding TXN port, TXP port, RXN port and RXP port.

[0007] Preferably, a forward low-dropout voltage regulator U33 is provided inside the forward low-dropout voltage regulator circuit, and the forward low-dropout voltage regulator circuit reduces the 5V voltage to a 3.3V voltage.

[0008] Preferably, the integrated machine further comprises an RS485 interface module for connecting to a communication bus, the main control module is connected to the RS485 interface module, and the RS485 interface module can be connected to a plurality of groups of magnet power supplies simultaneously through the communication bus.

[0009] Preferably, the RS485 interface module includes an RS485 interface connection circuit and an RS485 interface voltage stabilizing circuit. The external power supply of the RS485 interface module is connected to the RS485 interface connection circuit through the RS485 interface voltage stabilizing circuit. A high-speed isolated RS485 transceiver module U13 is arranged inside the RS485 interface connection circuit. The 485-RXD1' and 485-TXD1' ports of the high-speed isolated RS485 transceiver module U13 are connected to the main control module. The high-speed isolated RS485 transceiver module U13 is connected to the communication bus through the plug-in terminal J4.

[0010] Preferably, the all-in-one machine further comprises a USB interface module, and a signal output end of the USB interface module is connected to a signal input end of the main control module.

[0011] The beneficial effects of the utility model are as follows: the touch-screen all-in-one machine based on the Linux architecture comprises an RS485 interface, an Internet port and a USB interface; multiple magnet power supplies can be monitored through the RS485 interface polling method, and a single magnet power supply can be monitored through the Internet port for easy debugging; by inserting a U disk into the USB interface module, the program to be upgraded in the U disk can be automatically updated to the all-in-one machine, thereby realizing automatic upgrading.

[0012] Running the software host computer on the all-in-one machine, the data of the magnet power supply can be read through the above communication method and displayed on the software host computer, and the magnet power supply can be controlled. The use of the Linux architecture touch all-in-one machine solution can replace the previous use of a laptop for on-site debugging, which can save the maintenance time of the magnet power supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In the attached picture:

[0014] Figure 1 This is a control block diagram of the magnet power supply control system that is easy to operate and maintain proposed by the utility model;

[0015] Figure 2 This is a circuit schematic diagram of the main control module proposed by the utility model;

[0016] Figure 3 The circuit schematic diagram of the RS485 interface module proposed by the utility model;

[0017] Figure 4 This is a circuit schematic diagram of the Ethernet port module proposed by the utility model;

[0018] Figure 5 This is a circuit schematic diagram of the USB interface module proposed by the utility model;

[0019] Figure 6 This is a waveform diagram of the power supply parameters of a single magnet proposed in the utility model;

[0020] Figure 7 This is a power supply monitoring diagram for multiple magnets proposed in the utility model.

[0021] In the figure: 21-RS485 interface connection circuit, 22-RS485 interface voltage stabilization circuit;

[0022] 31-Ethernet port control circuit, 32-network transformer circuit, 33-forward low voltage drop regulator circuit, 34-four-channel low capacitance ESD suppressor circuit. DETAILED DESCRIPTION

[0023] Reference Figure 1 A magnet power supply control system that is easy to operate and maintain includes multiple groups of magnet power supplies with network cable interfaces, and also includes an all-in-one machine with a touch screen, a main control module, an Ethernet port module and a network cable interface. The touch screen is connected to the main control module, the main control module is connected to the Ethernet port module, and the Ethernet port module is separately connected to the network cable interface of the magnet power supply through a network cable connected to the network cable interface.

[0024] Reference Figure 4The Ethernet port module includes an Ethernet port control circuit 31, a network transformer circuit 32, a forward low-dropout voltage regulator circuit 33 and a four-channel low-capacitance ESD suppressor circuit 34. The forward low-dropout voltage regulator circuit 33 is externally connected to an input power supply. The output end of the forward low-dropout voltage regulator circuit 33 is respectively connected to the power input end of the Ethernet port control circuit 31 and the power input end of the network transformer circuit 32. The Ethernet port control circuit 31 is connected to the network transformer circuit 32. The four-channel low-capacitance ESD suppressor circuit 34 is respectively connected to the Ethernet port control circuit 31 and the network transformer circuit 32. The four-channel low-capacitance ESD suppressor circuit 34 can provide electrostatic protection, which is beneficial to maintaining signal integrity.

[0025] Reference Figure 2 and Figure 4 A main controller is arranged inside the main control module, an Ethernet control chip U20 is arranged inside the Ethernet port control circuit 31, a network transformer U6 is arranged inside the network transformer circuit 32, a four-channel low-capacitance ESD suppressor circuit 34 is arranged inside the four-channel low-capacitance ESD suppressor U10, the SPI interface of the Ethernet control chip U20 is connected to the main controller, and the Ethernet control chip U20, the network transformer U6 and the four-channel low-capacitance ESD suppressor U10 are connected through corresponding TXN port, TXP port, RXN port and RXP port respectively.

[0026] The forward low-dropout voltage regulator circuit 33 is internally provided with a forward low-dropout voltage regulator U33, and the forward low-dropout voltage regulator circuit 33 reduces the 5V voltage to a 3.3V voltage.

[0027] Reference Figure 3 The integrated machine also includes an RS485 interface module for connecting to a communication bus. The main control module is connected to the RS485 interface module. The RS485 interface module can be connected to multiple sets of magnet power supplies at the same time through the communication bus.

[0028] The RS485 interface module includes an RS485 interface connection circuit 21 and an RS485 interface voltage stabilizing circuit 22. The external power supply of the RS485 interface module is connected to the RS485 interface connection circuit 21 through the RS485 interface voltage stabilizing circuit 22. A high-speed isolated RS485 transceiver module U13 is arranged inside the RS485 interface connection circuit 21. The 485-RXD1' and 485-TXD1' ports of the high-speed isolated RS485 transceiver module U13 are connected to the main control module. The high-speed isolated RS485 transceiver module U13 is connected to the communication bus through the plug-in terminal J4. The RS485 interface voltage stabilizing circuit 22 includes two sets of parallel capacitors C13 and capacitor C19, which play the role of voltage stabilization and power supply filtering.

[0029] Reference Figure 5The all-in-one machine also includes a USB interface module, and a signal output end of the USB interface module is connected to a signal input end of the main control module.

[0030] Working principle:

[0031] When the integrated machine communicates with multiple magnet power supplies via RS485 interface, Figure 7 As shown, the interface displays multiple power supplies, which can perform simple operations on the magnet power supply and display the current general information of the power supply. The hidden button on the left can configure the number of power supplies, and the right side can jump to the upper computer of the single magnet power supply monitoring software;

[0032] like Figure 6 As shown, the top of the interface is the power control, which can realize functions such as saving parameters, importing parameters, downloading parameters, turning on and off, and fault reset. After setting the various parameters of the power supply, the parameters can be saved and directly imported when changing the power supply. The current communication status and power status are displayed at the bottom. The data of the magnet power supply are displayed through the middle waveform graph. Up to four signals can be selected for display at one time. It is more intuitive to see the signal changes through the waveform, and the waveform retention length can be set in the configuration file.

[0033] In this system, all the integrated machines are touch-screen integrated machines based on Linux architecture. The power supply parameters can be saved in the Linux system through the software host computer. When the power supply is replaced, the previously saved power supply parameters can be directly imported. The Linux file system adopts a directory tree structure, which can effectively manage data files. Non-administrators have no authority to modify the power supply parameter files. Various data of the power supply can also be saved in the database table. Through regular backup, data can be quickly restored when needed. The design of the software host computer is also very flexible. Various data of the magnet power supply can be displayed more intuitively through the waveform interface. The communication method between the main control module card of the magnet power supply and the Linux architecture touch-screen integrated machine can be changed at any time. The security and stability of the system have been improved, the design cost of the magnet power supply control system has been reduced, and the most important thing is that the operation and maintenance efficiency has been significantly improved.

Claims

1. A magnet power supply control system that is easy to operate and maintain, comprising a plurality of magnet power supplies provided with network cable interfaces, characterized in that: It also includes an all-in-one machine provided with a touch screen, a main control module, an Ethernet port module and a network cable interface, the touch screen is connected to the main control module, the main control module is connected to the Ethernet port module, and the Ethernet port module is separately connected to the network cable interface of the magnet power supply through a network cable connected to the network cable interface.

2. According to claim 1, a magnet power supply control system that is easy to operate and maintain, characterized in that: The Ethernet port module comprises an Ethernet port control circuit (31), a network transformer circuit (32), a forward low-voltage dropout regulator circuit (33) and a four-channel low-capacitance ESD suppressor circuit (34); the forward low-voltage dropout regulator circuit (33) is externally connected to an input power supply; the output end of the forward low-voltage dropout regulator circuit (33) is respectively connected to a power input end of the Ethernet port control circuit (31) and a power input end of the network transformer circuit (32); the Ethernet port control circuit (31) is connected to the network transformer circuit (32); and the four-channel low-capacitance ESD suppressor circuit (34) is respectively connected to the Ethernet port control circuit (31) and the network transformer circuit (32).

3. According to claim 2, a magnet power supply control system that is easy to operate and maintain, characterized in that: The main control module is provided with a main controller inside, the Ethernet port control circuit (31) is provided with an Ethernet control chip U20 inside, the network transformer circuit (32) is provided with a network transformer U6 inside, the four-channel low-capacitance ESD suppressor circuit (34) is provided with a four-channel low-capacitance ESD suppressor U10 inside, the SPI interface of the Ethernet control chip U20 is connected to the main controller, and the Ethernet control chip U20, the network transformer U6 and the four-channel low-capacitance ESD suppressor U10 are connected through corresponding TXN ports, TXP ports, RXN ports and RXP ports respectively.

4. According to claim 2, a magnet power supply control system that is easy to operate and maintain, characterized in that: The forward low-dropout voltage regulator circuit (33) is internally provided with a forward low-dropout voltage regulator U33, and the forward low-dropout voltage regulator circuit (33) reduces a 5V voltage to a 3.3V voltage.

5. According to claim 1, a magnet power supply control system that is easy to operate and maintain, characterized in that: The integrated machine also includes an RS485 interface module for connecting to a communication bus, the main control module is connected to the RS485 interface module, and the RS485 interface module can be connected to multiple groups of magnet power supplies at the same time through the communication bus.

6. According to claim 5, a magnet power supply control system that is easy to operate and maintain, characterized in that: The RS485 interface module comprises an RS485 interface connection circuit (21) and an RS485 interface voltage stabilizing circuit (22); an external power supply of the RS485 interface module is connected to the RS485 interface connection circuit (21) via the RS485 interface voltage stabilizing circuit (22); a high-speed isolated RS485 transceiver module U13 is arranged inside the RS485 interface connection circuit (21); 485-RXD1' and 485-TXD1' ports of the high-speed isolated RS485 transceiver module U13 are connected to the main control module; and the high-speed isolated RS485 transceiver module U13 is connected to a communication bus via a plug-in terminal J4.

7. The magnet power supply control system that is easy to operate and maintain according to claim 1 is characterized in that: The integrated machine further comprises a USB interface module, and a signal output end of the USB interface module is connected to a signal input end of the main control module.

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