CN209460617U - A kind of microwave-driven source control system - Google Patents
A kind of microwave-driven source control system Download PDFInfo
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- CN209460617U CN209460617U CN201920596739.1U CN201920596739U CN209460617U CN 209460617 U CN209460617 U CN 209460617U CN 201920596739 U CN201920596739 U CN 201920596739U CN 209460617 U CN209460617 U CN 209460617U
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- 238000002955 isolation Methods 0.000 claims abstract description 61
- 238000004891 communication Methods 0.000 claims abstract description 33
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 238000001914 filtration Methods 0.000 claims description 21
- 230000005611 electricity Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007257 malfunction Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Abstract
The utility model discloses a kind of microwave-driven source control systems, it is related to microwave-driven source technology field, the utility model includes being sequentially connected the master system for realizing communication, Digitizing And Control Unit, light-coupled isolation system, input/output interface and voltage-frequency conversion module, the voltage-frequency conversion module connects high voltage power supply, high voltage power supply output signal is sampled, and voltage to frequency convert is carried out to sampled voltage signal, voltage signal is set to be converted into frequency signal, frequency signal is sent into the Digitizing And Control Unit of isolation power supply after light-coupled isolation system, Digitizing And Control Unit is completed to be isolated with the thorough of high voltage power supply, the transmission of the signal of the utility model, processing all digitlizations, ensure the accuracy of final signal, has the advantages that high reliablity.
Description
Technical field
The utility model relates to microwave-driven source technology fields, control system more particularly to a kind of microwave-driven source
System.
Background technique
Traditional microwave driving source control system generallys use 8 bit single-chip systems, and processing speed is slow, uses AD/DA chip
Analog signals acquisition and setting are carried out, 0-5V analog signal transmission carries out voltage signal data acquisition using AD acquisition chip,
Single-chip microcontroller control DA chip exports 0-5V voltage signal to realize the control to high pressure.
This signal transmission and acquisition method, are easy to be influenced by external strong electromagnetic, and analog voltage signal is real
Existing signal isolation is difficult, and isolation processes also bring along a degree of non-linear distortion, in addition, arriving sample point to control system
Transmission range also has strict requirements, and the remoter line loss of distance is bigger, is also readily incorporated other interference signals, and acquisition is caused to believe
Number error is big, and distance is too close, and light-current system and high voltage power supply can be made too close, is done by system itself high-pressure section
It disturbs, control system is caused crash problem occur.
Common control system generally uses 74LS374 to latch chip, carries out I/O port to external fault-signal and latches acquisition,
Software cycles query processing failure, then control IO output and the output of DA chip.This mode is limited by the single-chip microcontroller speed of service, is had
Acquisition process signal is slow, latches chip controls foot and is easy to be interfered and lead to problems such as to acquire mistake.
Utility model content
The purpose of this utility model is that: in order to solve existing control system by the way of analog acquisition, signal is easy
It is distorted and there are problems that the influence of high pressure strong interference environment, the utility model provides a kind of microwave-driven source control system.
The utility model specifically uses following technical scheme to achieve the goals above:
A kind of microwave-driven source control system, including being sequentially connected the master system for realizing communication, Digital Control system
System, light-coupled isolation system, input/output interface and voltage-frequency conversion module,
Voltage-frequency conversion module: connection high voltage power supply samples high voltage power supply output signal, and to sampled voltage signal
Voltage to frequency convert is carried out, sampled voltage signal is made to be converted into frequency signal；And the frequency pulse for exporting input/output interface
Signal is converted into corresponding voltage reference signal input high voltage power supply, for controlling the voltage output of high voltage power supply；
Input/output interface: for light-coupled isolation system input frequency signal and output frequency pulse signal to voltage-frequency
Conversion module；
Light-coupled isolation system: light-coupled isolation is carried out to the frequency signal of input, and the frequency signal after light-coupled isolation is sent
Enter Digitizing And Control Unit；Light-coupled isolation is carried out to the preset frequency pulse signal exported by Digitizing And Control Unit simultaneously to send
To input/output interface；
Digitizing And Control Unit is filtered the frequency signal after light-coupled isolation, eliminates strong electromagnetic bring
High-frequency interferencing signal obtains actual frequency signal, and the actual frequency signal is converted to true samples digital signal, is transferred to
Master system is shown；Digitizing And Control Unit exports preset frequency pulse signal to light-coupled isolation system, through voltage-frequency
Conversion module is converted into voltage reference signal input high voltage power supply.
Further, the voltage-frequency conversion module uses the conversion chip of model LM331N.
Further, the frequency pulse signal of the Digitizing And Control Unit output is when generating benchmark by High Precision Crystal Oscillator
Clock frequency is handled reference clock frequency using digitlization frequency splitting technology, the adjustable frequency pulse signal of generation.
Further, the Digitizing And Control Unit includes the FPGA system and ARM system mutually communicated, the FPGA system
System is connect with light-coupled isolation system, and ARM system is connect with master system by CAN bus and/or 485 interfaces, and by ARM
System generates preset frequency pulse signal corresponding with high voltage power supply output voltage, and the FPGA system is compiled by digitlization
The programmable bandpass filtering of Cheng Shixian frequency signal.
Further, the FPGA system uses the core board of model EP4CE15E22C8, and ARM system uses model
The core board of STM32F103ZET6.
Further, the FPGA system includes I/O control module, communication module, logic control and digitized processing mould
Block, AD frequency acquisition module, bandpass filtering modules block and DA rate-adaptive pacemaker module, the communication module pass through DSPI bus and FSMC
Bus and ARM system, which are realized, to be communicated, and communication module is connect with logic control with digital processing module,
I/O control module: it is connect respectively with logic control with digital processing module and light-coupled isolation system, for inputting
Output I/O signal is used to export enable signal to light-coupled isolation system and receives the fault-signal being passed to by light-coupled isolation system
And filtering parameter setting；
AD frequency acquisition module: connecting with light-coupled isolation system, receives the frequency signal being passed to by light-coupled isolation system, and
Frequency signal is converted into digital fre-quency signal, is passed to bandpass filtering modules block；
Bandpass filtering modules block: connecting with light-coupled isolation system, receives the frequency signal being passed to by light-coupled isolation system, and will
Frequency signal is converted to digital fre-quency signal, is passed to bandpass filtering modules block；
Logic control and digital processing module: actual frequency signal is converted into true samples digital signal；It is responsible for event
Hinder it is chain, by the output of enable signal and the chain frequency pulse signal of failure I/O signal；
DA rate-adaptive pacemaker module: connecting with light-coupled isolation system, by what is be passed to by logic control and digital processing module
Frequency pulse signal is exported to light-coupled isolation system；
Communication module: receiving the true samples digital signal and I/O signal of logic control and digital processing module output,
And the true samples digital signal and I/O signal are inputted into ARM system, master system is transferred to by ARM system and is shown
Show；The setting instruction for receiving ARM system output simultaneously will be transferred to logic control and digitized processing after setting instruction digitlization
Module.
Further, the I/O control module includes IO input module, IO output module and digital filtering module, the IO
Signal includes enable signal and fault-signal etc., and the IO input module is connect with light-coupled isolation system, for receiving by optocoupler
The incoming fault-signal of shielding system；
Digital filtering module: connecting with IO input module and logic control with digital processing module respectively, for event
Hinder signal and carry out High frequency filter processing, eliminate Vibrating pulse caused by High-frequency Interference, obtains malfunction, and will filtered event
Barrier signal is transmitted to logic control and digital processing module；
IO output module: connecting with logic control with digital processing module, by logic control and digital processing module
After failure is chain, it is responsible for being passed to enable signal to light-coupled isolation system.
Further, the ARM system is provided with network interface, and master system is communicated with ARM system by TCP/IP realization.
The beneficial effects of the utility model are as follows:
1, sampled voltage signal is converted into frequency signal by the utility model, and frequency signal is sent after light-coupled isolation system
Enter the Digitizing And Control Unit of isolation power supply, completes Digitizing And Control Unit and be isolated with the thorough of high voltage power supply, and by
What it is in transmitting is frequency signal, and the variation of interference bring level magnitude will not influence sampled voltage signal institute on transmission process middle line
Corresponding voltage, useful signal virtual voltage is only related to frequency size, and entire control system does not have AD/DA analog quantity processing unit
Point, transmission, the processing all digitlizations of signal, it is ensured that the accuracy of final signal, high reliablity.
2, the frequency signal of the utility model is by entering FPGA system after light-coupled isolation system, without periphery latch processing
Chip, using FPGA high speed processing ability and powerful internal logic program capability, realized inside FPGA signal latch processing,
Logic control, no external latch chip, also just without the interference problem for latching chip.
It 3, can be inside fpga chip to frequency pulse signal and enable signal etc. after the input of the utility model fault-signal
Progress hardware logic is chain, so that the high speed turn-off protection to microwave-driven source can be realized, failure response can be made soft from single-chip microcontroller
The millisecond shutdown grade response of part scan process is increased to Microsecond grade turn-off response, is conducive to protection power source device；And pass through number
Word filtering algorithm can effectively solve the problems such as false failure interference wrong report, and FPGA itself belongs to hardware logic programming, and there is no single
In piece machine program treatment process the problems such as program, shielding failure, there is very high reliability.
4, the utility model uses ARM-FPGA system, since 32 ARM systems have faster processing than conventional one-piece machine
Ability and more hardware interfaces not only can walk mark using 485 communications so that microwave-driven source can realize communication
Quasi- MODBUS_RTU communication protocol control, can also be using CAN bus customization communication protocol control；Due to 485 and CAN communication
Mode, itself all has multi-computer communication mode, it is possible to realize the serially concatenated control of multichannel microwave driving source；According to communication
Multiple air combat can be achieved in protocol address difference (hardware power address dial-up)；It, can also be according to user's need due to the flexibility of ARM
Network interface TCP/IP communication control mode is provided, there is powerful scalability.
Detailed description of the invention
Fig. 1 is the overall structure block diagram of the utility model.
Specific embodiment
In order to which those skilled in the art better understand the utility model, with reference to the accompanying drawing with following embodiment to this
Utility model is described in further detail.
Embodiment 1
As shown in Figure 1, realizing the upper of communication including being sequentially connected the present embodiment provides a kind of microwave-driven source control system
Position machine system, Digitizing And Control Unit, light-coupled isolation system, input/output interface and voltage-frequency conversion module,
Voltage-frequency conversion module: connection high voltage power supply samples high voltage power supply output signal, and to sampled voltage signal
Voltage to frequency convert is carried out, sampled voltage signal is made to be converted into frequency signal；And the frequency pulse for exporting input/output interface
Signal is converted into corresponding voltage reference signal input high voltage power supply, for controlling the voltage output of high voltage power supply；
Input/output interface: for light-coupled isolation system input frequency signal and output frequency pulse signal to voltage-frequency
Conversion module；
Light-coupled isolation system: light-coupled isolation is carried out to the frequency signal of input, and the frequency signal after light-coupled isolation is sent
Enter Digitizing And Control Unit；Light-coupled isolation is carried out to the preset frequency pulse signal exported by Digitizing And Control Unit simultaneously to send
To input/output interface；
Digitizing And Control Unit is filtered the frequency signal after light-coupled isolation, eliminates strong electromagnetic bring
High-frequency interferencing signal obtains actual frequency signal, and the actual frequency signal is converted to true samples digital signal, is transferred to
Master system is shown；Digitizing And Control Unit exports preset frequency pulse signal to light-coupled isolation system, through voltage-frequency
Conversion module is converted into voltage reference signal input high voltage power supply.
Voltage-frequency conversion module uses the conversion chip of model LM331N in the present embodiment, and sampled voltage signal is converted to
Frequency signal, such as 5V voltage are converted to corresponding frequency 20K, then laggard through input/output interface, light-coupled isolation system again
Enter Digitizing And Control Unit；And the frequency pulse signal of the present embodiment Digitizing And Control Unit output is produced by High Precision Crystal Oscillator
Raw reference clock frequency is handled reference clock frequency using digitlization frequency splitting technology, the adjustable frequency pulse of generation
Signal.
Embodiment 2
The present embodiment advanced optimizes on the basis of embodiment 1, specifically:
The Digitizing And Control Unit includes the FPGA system and ARM system mutually communicated, the FPGA system and optocoupler
Shielding system connection, ARM system is connect with master system by CAN bus and/or 485 interfaces, and is generated by ARM system
Preset frequency pulse signal corresponding with high voltage power supply output voltage, the FPGA system realize frequency by digitlization programming
The programmable bandpass filtering of rate signal, FPGA system uses the core board of model EP4CE15E22C8, ARM system in the present embodiment
System uses the core board of model STM32F103ZET6；
The FPGA system includes that I/O control module, communication module, logic control and digital processing module, AD frequency are adopted
Collect module, bandpass filtering modules block and DA rate-adaptive pacemaker module, the communication module passes through DSPI bus and FSMC bus and ARM system
System realizes communication, and communication module is connect with logic control with digital processing module,
I/O control module: it is connect respectively with logic control with digital processing module and light-coupled isolation system, for inputting
Export I/O signal；
AD frequency acquisition module: connecting with light-coupled isolation system, receives the frequency signal being passed to by light-coupled isolation system, and
Frequency signal is converted into digital fre-quency signal, is passed to bandpass filtering modules block；
Bandpass filtering modules block: after obtaining actual frequency signal to digital fre-quency signal progress bandpass filtering, input logic control
System and digital processing module；
Logic control and digital processing module: actual frequency signal is converted into true samples digital signal；It is responsible for event
Hinder it is chain, by the output of enable signal and the chain frequency pulse signal of I/O signal；
DA rate-adaptive pacemaker module: connecting with light-coupled isolation system, by what is be passed to by logic control and digital processing module
Frequency pulse signal is exported to light-coupled isolation system；
Communication module: receiving the true samples digital signal and I/O signal of logic control and digital processing module output,
And the true samples digital signal and I/O signal are inputted into ARM system, master system is transferred to by ARM system and is shown
Show；The setting instruction of ARM system output, such as voltage signal, frequency signal, IO output, filter setting parameter etc. are received simultaneously,
Logic control and digital processing module will be transferred to after setting instruction digitlization.
Embodiment 3
The present embodiment advanced optimizes on the basis of embodiment 2, specifically:
The I/O control module includes IO input module, IO output module and digital filtering module, and the I/O signal includes
Enable signal and fault-signal etc., the IO input module are connect with light-coupled isolation system, for receiving by light-coupled isolation system
Incoming fault-signal；
Digital filtering module: connecting with IO input module and logic control with digital processing module respectively, for event
Hinder signal and carry out High frequency filter processing, eliminate Vibrating pulse caused by High-frequency Interference, obtains malfunction, and will filtered event
Barrier signal is transmitted to logic control and digital processing module；
IO output module: connecting with logic control with digital processing module, by logic control and digital processing module
After failure is chain, it is responsible for being passed to enable signal to light-coupled isolation system.
Embodiment 4
The present embodiment advanced optimizes on the basis of embodiment 3, specifically:
The ARM system is provided with network interface, and master system is communicated with ARM system by TCP/IP realization；The present embodiment
Using ARM-FPGA system, since 32 ARM systems have faster processing capacity and more hardware interfaces than conventional one-piece machine,
So that microwave-driven source can realize communication, the MODBUS_RTU communication protocols of standard can be not only walked using 485 communications
View control, can also be using CAN bus customization communication protocol control；Due to 485 and CAN communication mode, itself all has multimachine
Communication mode, it is possible to realize the serially concatenated control of multichannel microwave driving source；According to different (the hardware electricity in communication protocol address
Source address dial-up) multiple air combat can be achieved；Due to the flexibility of ARM, it is logical can also to need to provide network interface TCP/IP according to user
Believe control mode, there is powerful scalability.
The above, the only preferred embodiment of the utility model, are not intended to limit the utility model, the utility model
Scope of patent protection be subject to claims, it is equivalent made by all specifications and accompanying drawing content with the utility model
Structure change similarly should be included in the protection scope of the utility model.
Claims (4)
1. a kind of microwave-driven source control system, it is characterised in that: including being sequentially connected the master system for realizing communication, number
Networked control systems, light-coupled isolation system, input/output interface and voltage-frequency conversion module,
Voltage-frequency conversion module: connection high voltage power supply samples high voltage power supply output signal, and carries out to sampled voltage signal
Voltage to frequency convert makes sampled voltage signal be converted into frequency signal；And the frequency pulse signal for exporting input/output interface
It is converted into corresponding voltage reference signal input high voltage power supply, for controlling the voltage output of high voltage power supply；
Input/output interface: for being converted to light-coupled isolation system input frequency signal and output frequency pulse signal to voltage-frequency
Module；
Light-coupled isolation system: light-coupled isolation is carried out to the frequency signal of input, and the frequency signal after light-coupled isolation is sent into number
Word networked control systems；The preset frequency pulse signal progress light-coupled isolation exported by Digitizing And Control Unit is given simultaneously defeated
Enter output interface；
Digitizing And Control Unit is filtered the frequency signal after light-coupled isolation, obtains actual frequency signal, and should
Actual frequency signal is converted to true samples digital signal, is transferred to master system and is shown；Digitizing And Control Unit is defeated
Preset frequency pulse signal is converted into voltage reference signal input high-voltage electricity through voltage-frequency conversion module to light-coupled isolation system out
Source.
2. a kind of microwave-driven source control system according to claim 1, it is characterised in that: the Digitizing And Control Unit
Including the FPGA system and ARM system mutually communicated, the FPGA system is connect with light-coupled isolation system, ARM system with it is upper
Machine system is connected by CAN bus and/or 485 interfaces, and corresponding with high voltage power supply output voltage by ARM system generation
Preset frequency pulse signal, the FPGA system realize the programmable bandpass filtering of frequency signal by digitlization programming.
3. a kind of microwave-driven source control system according to claim 2, it is characterised in that: the FPGA system includes IO
Control module, communication module, logic control and digital processing module, AD frequency acquisition module, bandpass filtering modules block and DA frequency
Rate output module, the communication module realize communication, communication module and logic by DSPI bus and FSMC bus and ARM system
Control is connect with digital processing module,
I/O control module: connecting with logic control with digital processing module and light-coupled isolation system respectively, is used for input and output
I/O signal is used to export enable signal to light-coupled isolation system and receives the fault-signal being passed to by light-coupled isolation system and filter
Wave parameter setting；
AD frequency acquisition module: connecting with light-coupled isolation system, receives the frequency signal being passed to by light-coupled isolation system, and will frequency
Rate signal is converted to digital fre-quency signal, is passed to bandpass filtering modules block；
Bandpass filtering modules block: carrying out after bandpass filtering obtains actual frequency signal digital fre-quency signal, input logic control with
Digital processing module；
Logic control and digital processing module: actual frequency signal is converted into true samples digital signal；It is responsible for failure to connect
Lock, by the output of enable signal and the chain frequency pulse signal of failure I/O signal；
DA rate-adaptive pacemaker module: connecting with light-coupled isolation system, the frequency that will be passed to by logic control and digital processing module
Output of pulse signal is to light-coupled isolation system；
Communication module: the true samples digital signal and I/O signal of logic control and digital processing module output are received, and will
The true samples digital signal and I/O signal input ARM system, are transferred to master system by ARM system and are shown；Together
When receive ARM system output setting instruction, will setting instruction digitlization after be transferred to logic control and digital processing module.
4. a kind of microwave-driven source control system according to claim 2, it is characterised in that: the ARM system is provided with
Network interface, master system are communicated with ARM system by TCP/IP realization.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920596739.1U CN209460617U (en) | 2019-04-28 | 2019-04-28 | A kind of microwave-driven source control system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920596739.1U CN209460617U (en) | 2019-04-28 | 2019-04-28 | A kind of microwave-driven source control system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687472A (en) * | 2019-11-08 | 2020-01-14 | 腾讯科技（深圳）有限公司 | Power supply monitoring device, electronic equipment, power supply monitoring method and storage medium |
| CN111654274A (en) * | 2020-06-22 | 2020-09-11 | 天津美腾科技股份有限公司 | Solenoid valve control device and intelligent dry separator |
| CN114326505A (en) * | 2021-12-29 | 2022-04-12 | 杭州电子科技大学 | Multi-module cooperative control door driving system based on three-level PCB (printed circuit board) stack structure |
-
2019
- 2019-04-28 CN CN201920596739.1U patent/CN209460617U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110687472A (en) * | 2019-11-08 | 2020-01-14 | 腾讯科技（深圳）有限公司 | Power supply monitoring device, electronic equipment, power supply monitoring method and storage medium |
| CN111654274A (en) * | 2020-06-22 | 2020-09-11 | 天津美腾科技股份有限公司 | Solenoid valve control device and intelligent dry separator |
| CN114326505A (en) * | 2021-12-29 | 2022-04-12 | 杭州电子科技大学 | Multi-module cooperative control door driving system based on three-level PCB (printed circuit board) stack structure |
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