CN110244700A - A kind of communication device of high frequency oxidation power supply - Google Patents
A kind of communication device of high frequency oxidation power supply Download PDFInfo
- Publication number
- CN110244700A CN110244700A CN201910598843.9A CN201910598843A CN110244700A CN 110244700 A CN110244700 A CN 110244700A CN 201910598843 A CN201910598843 A CN 201910598843A CN 110244700 A CN110244700 A CN 110244700A
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- power supply
- bus
- main switchboard
- optical transceiver
- high frequency
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- 238000004891 communication Methods 0.000 title claims abstract description 40
- 230000003647 oxidation Effects 0.000 title claims abstract description 20
- 238000007254 oxidation reaction Methods 0.000 title claims abstract description 20
- 239000000835 fiber Substances 0.000 claims abstract description 27
- 230000003287 optical effect Effects 0.000 claims abstract description 26
- 239000013307 optical fiber Substances 0.000 claims abstract description 17
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 230000001052 transient effect Effects 0.000 claims abstract description 9
- 230000001629 suppression Effects 0.000 claims abstract description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B23/00—Testing or monitoring of control systems or parts thereof
- G05B23/02—Electric testing or monitoring
- G05B23/0205—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults
- G05B23/0208—Electric testing or monitoring by means of a monitoring system capable of detecting and responding to faults characterized by the configuration of the monitoring system
- G05B23/0213—Modular or universal configuration of the monitoring system, e.g. monitoring system having modules that may be combined to build monitoring program; monitoring system that can be applied to legacy systems; adaptable monitoring system; using different communication protocols
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- Small-Scale Networks (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The present invention relates to a kind of communication devices of high frequency oxidation power supply, including control cabinet, main switchboard, magnetic coupling isolating device, optical fiber, the first fiber optical transceiver, the second fiber optical transceiver, CAN high-speed transceiver, power supply slave module, inductance and Transient Suppression Diode；Control cabinet is equipped with man-machine interface；The man-machine interface is connect by RS485 bus with the first fiber optical transceiver, and the first fiber optical transceiver is connect by optical fiber with the second fiber optical transceiver, and the second fiber optical transceiver is connect by RS485 bus with main switchboard；It is described；It is all connected with inductance in RS485 bus interface and CAN interface and transient state inhibits two poles.The present invention utilizes the advantages of RS485 and CAN, can flexible setting have the control cabinet of man-machine interface, convenient for manipulation；Meet communicating requirements and the high-power output requirements such as high frequency oxidation power supply real-time, anti-interference and failure self- recoverage.
Description
Technical field
The present invention relates to oxidation power source communications technical fields, more particularly to a kind of communication device of high frequency oxidation power supply.
Background technique
In the communication system of high-power high-frequency oxidation power supply complexity, the wiring of general choice RS485 or CAN bus at present
Mode.Though supporting long haul communication using single RS485 control bus but transmission rate being partially slow, it is difficult to realize that data-signal exists
Quick transmission between main switchboard and power module；Though selecting 485 buses of Shielded Twisted Pair has stronger anti-interference ability,
But work is easy to be interfered and causes to be unable to normal communication in forceful electric power magnetic environments such as electrolytic oxidation slot peripheries.Using single
CAN control bus can reach the requirement of high-speed traffic and multi-power module parallel operation, but poor anti jamming capability, it is easier to by
Steady operation is unable to interference；The characteristics of CAN dereliction communicates makes bus that congestion may occur and be not easy to manage；Increase people
The hardware cost at machine interface and main switchboard communication system reduces the productivity effect of manufacture high frequency oxidation power supply.Therefore, in need
The advantages of comprehensively utilizing above-mentioned RS485 bus and CAN bus is designed and meets quick, stable, reliable communication device.
Summary of the invention
To solve the above problems, the invention proposes a kind of communication device of high frequency oxidation power supply, including control cabinet, master control
Making sheet, magnetic coupling isolating device, optical fiber, the first fiber optical transceiver, the second fiber optical transceiver, CAN high-speed transceiver, power supply slave mould
Block, inductance and Transient Suppression Diode；The control cabinet is equipped with man-machine interface；The man-machine interface by RS485 bus with
The connection of first fiber optical transceiver, the first fiber optical transceiver are connect by optical fiber with the second fiber optical transceiver, the second fiber optical transceiver
It is connect by RS485 bus with main switchboard；The main switchboard connect shape by CAN high-speed transceiver with power supply slave module
At CAN bus networking；The power supply slave module includes several power modules in parallel；RS485 bus and main switchboard it
Between be connected with magnetic coupling isolating device；It is all connected with inductance in the RS485 bus interface and CAN interface and transient state inhibits two poles
Pipe.The power supply slave module includes several power modules in parallel.
The output parameter (including output voltage and output electric current) that is set in man-machine interface, time parameter (including power supply
Runing time, it is slow rise and ramp down time would) and operating mode (including constant current and constant voltage mode) signal pass through RS485 bus and optical fiber
It is transmitted to main switchboard, each power supply slave module status information being collected into is fed back to man-machine interface and shown by main switchboard
Show, man-machine interface and main switchboard carry out One-to-one communication mode.
Equal stream information and start and stop instruction are sent to each power module for participating in work by CAN bus by main switchboard, just
The status information of output is back to main switchboard by the power module often to work.
Preferably, several (theoretically up to up to a hundred) power modules in parallel in the CAN bus, for realizing big function
Rate output requires.
Preferably, the CAN bus communication module uses the communication mode of MS master-slave formula, the main switchboard of power-supply system according to
Secondary to send inquiry instruction to each controlled source module, corresponding power module replys corresponding state information, each polling interval
20ms.Arbitrary node in CAN bus can actively initiate to communicate, can be with when power module detection judges itself fail
Higher priority issues fault-signal to main switchboard.
Preferably, between 485 bus and main switchboard internal circuit using RS485 magnetic coupling isolating device carry out every
From, between optical fiber and RS485 bus using the second fiber optical transceiver carry out signal conversion；The CAN bus, that is, CAN communication interface
Circuit is isolated using CAN high-speed transceiver and magnetic coupling isolating chip.Inductance and transient state is added in above two isolation circuit
Inhibit diode, improves the anti-interference and anti-surge voltage ability of circuit.
Preferably, the RS485 magnetic coupling isolating device is ADM2483 isolator.
Preferably, the main switchboard and power supply slave module are mounted in same rack, the main switchboard and electricity
Source slave module uses the connection type of formula hand in hand.
Preferably, the output parameter includes output voltage and output electric current；When the time parameter includes power supply operation
Between, slow rise and ramp down time would；The operating mode includes constant current and constant voltage mode signal.
Compared with prior art, the invention comprehensively utilizes the communication advantages of RS485 and CAN, propose a kind of quick, steady
The communication device of fixed, reliable high frequency oxidation power supply.Due to RS485 support long haul communication and optical fiber transmission is not by forceful electric power magnet ring
Border influences, can control cabinet of the flexible setting equipped with man-machine interface position, it is existing close to actual production far from slave operational module
, improve the real-time of operation and the stability of safety and communication；Using the communication pattern that CAN bus is one-to-many, make multimode
Block parallel operation, realizes high-power output requirement, and the MS master-slave working method of design effectively avoids bus from congestion occurring and convenient for pipe
The characteristics of reason, CAN is quickly transmitted, further improves the real-time of communication system.
Detailed description of the invention
Fig. 1 is that the high frequency of embodiment aoxidizes power source communications system diagram；
Fig. 2 is the CAN bus group network topological structure figure of formula hand in hand of embodiment；
Fig. 3 a is the communication flow diagram at the main switchboard end of embodiment；
Fig. 3 b is the communication flow diagram at the power module end of embodiment；
Fig. 4 a is the RS485 interface circuit figure of embodiment；
Fig. 4 b is the CAN interface circuit diagram of embodiment.
Specific embodiment
Implementation of the invention is further described with specific embodiment with reference to the accompanying drawing, but implementation of the invention and
Protect it is without being limited thereto, if it is noted that below have not especially detailed description process or component, be those skilled in the art
It can refer to prior art realization.
A kind of communication device of high frequency oxidation power supply, it is specific such as Fig. 1, including control cabinet, main switchboard be (existing high-power
Have in the communication system of high frequency oxidation electricity), magnetic coupling isolating device, optical fiber, the first fiber optical transceiver, the second optical fiber transceiving
Device, CAN high-speed transceiver, power supply slave module, inductance and Transient Suppression Diode；The control cabinet is equipped with man-machine interface
(such as touch screen)；The man-machine interface is connect by RS485 bus with the first fiber optical transceiver, and the first fiber optical transceiver passes through light
Fibre is connect with the second fiber optical transceiver, and the second fiber optical transceiver is connect by RS485 bus with main switchboard；The main switchboard
It connect to form CAN bus networking by CAN high-speed transceiver with power supply slave module；The power supply slave module includes several
Power module in parallel；Magnetic coupling isolating device is connected between RS485 bus and main switchboard；The RS485 bus interface and
Inductance and Transient Suppression Diode are all connected in CAN interface.The power supply slave module includes the power supply mould of N number of parallel connection
Block.
The power supply output parameter (including output voltage and output electric current) that is set in man-machine interface, time parameter (including
Power supply runing time, it is slow rise and ramp down time would) and operating mode (including constant current and constant voltage mode) signal by RS485 bus with
Optical fiber is transmitted to main switchboard, and main switchboard will be collected into power supply slave module output state feedback signal and be back to man-machine boundary
Face is processed and displayed.Due to RS485 support long haul communication and optical fiber transmission has extremely strong anti-interference ability,
Control cabinet equipped with man-machine interface can be placed in production scene, and protected with the rack equipped with main switchboard and multiple power modules
Very long a distance is held, realizes the real-time and safety of operation.
After main switchboard receives upper level working signal, equal stream information and start and stop instruction are sent to ginseng by CAN bus
With the power supply slave module of work, respective output state information, fault message are then uploaded to main switchboard by power supply slave module.
Main switchboard and power supply slave module are mounted in same rack, and the connection type of formula hand in hand is selected to carry out CAN bus group
Net, main switchboard and power module N are connected separately with load, specific as shown in Figure 2.
CAN communication mode takes the communication device of MS master-slave formula, and specific such as Fig. 3 a: the main switchboard of power-supply system is successively
Inquiry instruction (signal) is sent to each controlled source module, corresponding power module replys corresponding state information, man-machine interface
Handle and show the working condition of power module, such as electric current, duty ratio etc., each lower module of polling interval 20ms, that is, x=
Number waits 20ms；When the power module in work can not receive the inquiry instruction of main switchboard on time, illustrate to occur logical
Letter failure simultaneously issues sound-light alarm, and the power module is automatically stopped operation and waits communication recovery at this time；In addition, CAN bus is any
Node can actively initiate to communicate, therefore when a certain power module breaks down, can be directly with higher priority master
Trend bus issues fault message, without waiting the inquiry signal of main switchboard, reduces the fault handling time of system, mentions
High system reliability.
Such as Fig. 3 b, the power module needs for participating in work were confirmed whether to receive inquiry signal within the time of restriction, worked as electricity
It acts accordingly when source module is in normal operating condition to inquiry signal, replys oneself state information to main switchboard, than
Such as electric current, duty ratio etc.；If inquiry signal i.e. communication timeout cannot be received within a limited period of time, illustrate that power module is in event
Barrier state will close itself output and Wait-to-Restore at this time, guarantee communication between main switchboard and each power module orderly into
Row.
Specific such as Fig. 4 a, RS485 interface circuit select dedicated RS485 magnetic coupling isolating device ADM2483 by master control
Plate and Bus isolation, the RX of ADM2483,DE with TX pin connects the interface microcontroller of main switchboard；Optical fiber is total with RS485
The mutual conversion of electric signal and fiber-optic signal is carried out between line using the second fiber optical transceiver.Such as Fig. 4 b, CAN interface circuit magnetic coupling
Isolating chip ADUM1201 and CAN high-speed transceiver TJA1050 is main devices, and VOA with the VIB pin of ADUM1201 connects always
The interface microcontroller of control panel realizes the electrical isolation between bus and single-chip microcontroller.Electricity is added in above two circuit simultaneously
The elements such as sense and Transient Suppression Diode improve the anti-interference and anti-surge voltage ability of circuit.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other it is any without departing under Spirit Essence and principle of the invention it is made modification, modification, substitution, combination, simplify,
It should be equivalent substitute mode, should all be included within protection scope of the present invention.
Claims (7)
1. a kind of communication device of high frequency oxidation power supply, including control cabinet and main switchboard, it is characterised in that: further include magnetic coupling every
From device, optical fiber, the first fiber optical transceiver, the second fiber optical transceiver, CAN high-speed transceiver, power supply slave module, inductance and wink
State inhibits diode；The control cabinet is equipped with man-machine interface；The man-machine interface passes through RS485 bus and the first optical fiber transceiving
Device connection, the first fiber optical transceiver are connect by optical fiber with the second fiber optical transceiver, and the second fiber optical transceiver passes through RS485 bus
It is connect with main switchboard；The main switchboard connect to form CAN bus group with power supply slave module by CAN high-speed transceiver
Net；The power supply slave module includes several power modules in parallel；Magnetic is connected between RS485 bus and main switchboard
Coupling isolating device；Inductance and Transient Suppression Diode are all connected in the RS485 bus interface and CAN interface；
Output parameter, time parameter and the operating mode signal set in man-machine interface, passes through RS485 bus and the second optical fiber
The information of setting is transferred to main switchboard, the data that power supply slave module collection is arrived in main switchboard by transceiver fiber optical transceiver
Information back is shown to man-machine interface and in man-machine interface；
Equal stream information and start and stop instruction are sent to each power module for participating in work, power supply mould by CAN bus by main switchboard
The status information respectively exported is back to main switchboard by block.
2. the communication device of high frequency oxidation power supply according to claim 1, it is characterised in that: in parallel in the CAN bus
Several power modules, for realizing high-power output requirement.
3. the communication device of high frequency oxidation power supply according to claim 1, it is characterised in that: the CAN bus is using master-
From the communication mode of formula, main switchboard successively sends inquiry instruction to each controlled source module, and corresponding power module is replied
Corresponding state information, each polling interval 20ms；Arbitrary node in CAN bus can actively initiate to communicate, the electricity to break down
Source module has priority initiative to issue fault message to bus.
4. the communication device of high frequency oxidation power supply according to claim 1, it is characterised in that: the RS485 bus i.e. 485
Electrical isolation is carried out using RS485 magnetic coupling isolating device between interface circuit and main switchboard；Make between optical fiber and RS485 bus
Signal conversion is carried out with the second fiber optical transceiver；The CAN bus, that is, CAN interface circuit uses CAN high-speed transceiver and magnetic coupling
Isolating chip realizes electrical isolation.
5. the communication device of high frequency oxidation power supply according to claim 1, it is characterised in that: the RS485 magnetic coupling isolation
Device is ADM2483 isolator.
6. the communication device of high frequency oxidation power supply according to claim 1, it is characterised in that: the main switchboard and power supply
Slave module is mounted in same rack, the main switchboard and power supply slave module using formula hand in hand connection type.
7. the communication device of high frequency oxidation power supply according to claim 2, it is characterised in that: the output parameter includes defeated
Voltage and output electric current out；The time parameter includes power supply runing time, slow liter and ramp down time would；The operating mode includes
Constant current and constant voltage mode signal.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018115378995 | 2018-12-15 | ||
| CN201811537899.5A CN109582006A (en) | 2018-12-15 | 2018-12-15 | A kind of communication device of high frequency oxidation power supply |
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| Publication Number | Publication Date |
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| CN110244700A true CN110244700A (en) | 2019-09-17 |
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| CN201811537899.5A Pending CN109582006A (en) | 2018-12-15 | 2018-12-15 | A kind of communication device of high frequency oxidation power supply |
| CN201910598843.9A Pending CN110244700A (en) | 2018-12-15 | 2019-07-04 | A kind of communication device of high frequency oxidation power supply |
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| CN201811537899.5A Pending CN109582006A (en) | 2018-12-15 | 2018-12-15 | A kind of communication device of high frequency oxidation power supply |
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|---|---|---|---|---|
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-
2018
- 2018-12-15 CN CN201811537899.5A patent/CN109582006A/en active Pending
-
2019
- 2019-07-04 CN CN201910598843.9A patent/CN110244700A/en active Pending
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