CN104949412B - Anti-tampering high-performance input module for refrigerator - Google Patents
Anti-tampering high-performance input module for refrigerator Download PDFInfo
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- CN104949412B CN104949412B CN201510340213.3A CN201510340213A CN104949412B CN 104949412 B CN104949412 B CN 104949412B CN 201510340213 A CN201510340213 A CN 201510340213A CN 104949412 B CN104949412 B CN 104949412B
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- Prior art keywords
- controller
- controlling bus
- refrigerator
- heavy metal
- power supply
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
Abstract
The present invention relates to control system field, disclose the anti-tampering high-performance input module for refrigerator, it includes DC power supply apparatus, also include A/D controlling bus, from controller, master controller, host computer, heavy metal detector and supersonic generator, A/D controlling bus is connected with from controller, and the data signal for A/D controlling bus being converted to by FPGA coprocessor from controller is simultaneously read out to it；The detection signal that is sent from controller analysis heavy metal detector simultaneously controls supersonic generator to work；Isolation module is installed, isolation module includes electric power storage parts (1) and the discharge component (2) being connected with each other on DC power supply apparatus.The present invention realizes the high speed of gathered data, real-time transmission characteristic, by the heavy metal ion in supersonic generator control machine body, and the isolation module of power supply is effectively isolated power supply and controller, the signal in controller is reduced the possibility being disturbed.
Description
Technical field
The present invention relates to the anti-tampering high-performance input module in control system field, more particularly, to refrigerator.
Background technology
Refrigerator is made up of evaporator, compressor, condenser, the big part of choke valve four, and principle is exactly refrigerant rational
Infinite Cyclic is freezed under condition of work.Process is as follows：Refrigerant absorbs heat in evaporator and evaporated, after compressor suction has been evaporated
Refrigerant vapour is compressed, and condenser is cooled into refrigerant liquid to the high-temperature high-pressure refrigerant steam after compression, section
Flow valve and carry out reducing pressure by regulating flow, refrigerant liquid is evaporated again in low pressure evaporator.Refrigerator often uses PLC technology system
System is controlled and data analysis, and programmable control system application field typically has high-risk, successional feature, it is desirable to be
System has high-performance, high reliability and high availability, therefore controller and I/O template layers often use redundancy, distribution process, but
It is that channel layer often uses the multiple A/D change-over circuits of single cpu poll or the single A/D polls of single cpu in traditional design
Multiple passages, this mode is for small signal process because poll increases the sampling period, and real-time reduction requires high some
It is extremely difficult to require under the application scenario of performance.And domestic control field is often from multichannel, the height of 12 or higher resolution
Fast parallel interface A/D devices use direct interface mould the interface of A/D and master devices more as the core devices of data acquisition
Formula, direct cache mode and indirect cache mode etc., subject matter is：Using the number of multi-disc, multi-channel straight connection interface pattern
According to acquisition system, because A/D sampling is completely controlled by main controller, reading has to wait for A/D chips and completes whole channel samples
It could carry out, thus real-time is poor.Because refrigerator is used for industrial area, thus during condensation easy Adsorption of Heavy Metals from
Son, causes the circuit of refrigerator to be disturbed and can not run well, in addition, power input output common ground, security performance is poor, easily production
Signal transmission in raw interference signal, interference suppressor.
The content of the invention
The present invention is for sampled data real-time in the prior art is poor, the easy output interference signal of power supply shortcoming there is provided
It is used for the anti-tampering high-performance input module of refrigerator.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：
For the anti-tampering high-performance input module of refrigerator, including DC power supply apparatus, in addition to A/D controlling bus,
From controller, master controller, host computer, heavy metal detector and supersonic generator, master controller connection host computer, main control
It is connected with multiple from controller on device, A/D controlling bus is each respectively connected with from controller, A/D controlling bus collects multiple
The external signal of A/D channel receptions is simultaneously converted to data signal, from controller by FPGA coprocessor by A/D controls
The data signal that general line system is obtained maps to the external address space from controller and it is read out, FPGA association
The functional unit set in processor includes A/D timing control units, external address map unit, address generator, RAM and accesses control
Unit processed, data input latch, Data output latch, memory, from controller by external address map unit to A/D
Timing control unit, which sends initial order, simultaneously makes A/D controlling bus be sampled automatically, and RAM access control units are by each A/D
The data obtained after Channel-shifted are aggregated into data signal by A/D controlling bus and are latched in input latch, A/D sequential controls
Unit processed controls address generator to produce storage address for current data signal, and A/D timing control units are to RAM access controls
Unit sends write order and the data signal of latch is stored in into memory in real time, and external address map unit is by the number in memory
According to address of cache to the external address space from controller, RAM access control unit control data output latches are defeated by data
Go out to from controller；Heavy metal detector and supersonic generator are arranged in refrigerator, heavy metal detector and ultrasonic wave hair
Raw device is connected by A/D controlling bus with from controller, the heavy metal ion in detection of heavy metal ion instrument detection refrigerator
Content and send detection signal to from controller, the detection signal sent from controller analysis heavy metal detector simultaneously controls super
Sonic generator works, and supersonic generator accelerates the coagulation mistake of the heavy metal ion in refrigerator by the ultrasonic wave of generation
Journey；Isolation module is installed, isolation module includes electric power storage parts and the discharge component being connected with each other, electric power storage on DC power supply apparatus
Part is connected with DC power supply apparatus and forms loop, and discharge component is connected and shape with from controller, master controller and host computer
Into loop, be provided with the first switch of control loop break-make between electric power storage parts and DC power supply apparatus, discharge component with from control
The second switch of control loop break-make is provided between device, master controller and host computer.It will be believed by FPGA coprocessor
The external address space for number being mapped to controller is read out, and realizes high speed, the real-time Transmission characteristic, direct current supply of gathered data
The isolation module of device is effectively isolated power supply and controller, the signal in controller is reduced the possibility being disturbed.
Preferably, first switch and second switch are optocoupler combination switch.The structure of common insulating power supply causes control to believe
Number in part-time will with load end altogether, and control signal be usually with power supply altogether, therefore do not have the work of isolation
With optical coupling switch element is it is possible to prevente effectively from the generation of problems.
Preferably, having broken thread detector between external signal input terminals and A/D controlling bus.Input can be detected in real time
Whether signal breaks.
Preferably, also including the temperature sensor of Acquisition Circuit plate temperature, master controller is connected simultaneously with temperature sensor
Control is read outside cold junction temperature data from controller timing and compensated.Cold end is placed on inside circuit board easily by temperature in plate
Rise influence, raises cold junction temperature, causes thermocouple assay inaccurate, by cold junction compensation data can be made more preferably accurate.
The present invention is as a result of above technical scheme, with significant technique effect：By multiple independent from controller
Data acquisition is carried out, the defect interfered between input signal is overcome, while by FPGA coprocessor by data
Analyzed and processed in real time, realize high speed, the real-time Transmission characteristic of gathered data；Supersonic generator can be effectively in control machine body
Heavy metal ion, reduce its to signal transmit interference；Power isolation module is effectively isolated power supply and controller, makes controller
Interior signal reduces the possibility being disturbed.
Brief description of the drawings
Fig. 1 is the theory diagram of the present invention.
Fig. 2 is the theory diagram of the FPGA coprocessor in this Fig. 1.
Fig. 3 is the circuit diagram of interference preventer in embodiment 1 in this Fig. 1.
Fig. 4 is the circuit diagram of interference preventer in example 2 in this Fig. 1.
The toponym that each number designation is referred in accompanying drawing is as follows：1-electric power storage parts, 2-discharge component, 3-the first
Contact point, the 4-the second contact point, 11-first switch, 21-second switch.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings.
Embodiment 1
For the anti-tampering high-performance input module of refrigerator, including DC power supply apparatus, in addition to A/D controlling bus,
From controller, master controller, host computer, heavy metal detector and supersonic generator, master controller connection host computer, main control
Four are connected with device from controller, A/D controlling bus is each respectively connected with from controller, A/D controlling bus collects four
The external signal of A/D channel receptions is simultaneously converted to data signal, from controller by FPGA coprocessor by A/D controls
The data signal that general line system is obtained maps to the external address space from controller and it is read out, FPGA association
The functional unit set in processor includes A/D timing control units, external address map unit, address generator, RAM and accesses control
Unit processed, data input latch, Data output latch, memory, from controller by external address map unit to A/D
Timing control unit, which sends initial order, simultaneously makes A/D controlling bus be sampled automatically, and RAM access control units are by each A/D
The data obtained after Channel-shifted are aggregated into data signal by A/D controlling bus and are latched in input latch, A/D sequential controls
Unit processed controls address generator to produce storage address for current data signal, and A/D timing control units are to RAM access controls
Unit sends write order and the data signal of latch is stored in into memory in real time, and external address map unit is by the number in memory
According to address of cache to the external address space from controller, RAM access control unit control data output latches are defeated by data
Go out to from controller.Heavy metal detector and supersonic generator are arranged in refrigerator, heavy metal detector and ultrasonic wave hair
Raw device is connected by A/D controlling bus with from controller, the heavy metal ion in detection of heavy metal ion instrument detection refrigerator
Content and send detection signal to from controller, the detection signal sent from controller analysis heavy metal detector simultaneously controls super
Sonic generator works, and supersonic generator accelerates the coagulation mistake of the heavy metal ion in refrigerator by the ultrasonic wave of generation
Journey, the heavy metal ion that supersonic generator can be effectively in control machine body, reduces the interference that heavy metal ion is transmitted to signal.When
When detecting that the heavy metal ion content that signal reflects in body is excessive, instruction is sent to supersonic generator from controller, makes to surpass
Sonic generator is operated；When detecting that the heavy metal ion content in signal reflection body is not high, ultrasonic wave is controlled from controller
Generator shuts down to reduce unnecessary energy resource consumption.Isolation module, isolation module are installed on DC power supply apparatus
Electric power storage parts 1 and discharge component 2 including interconnection, electric power storage parts 1 are connected with DC power supply apparatus and form loop, electric discharge
Part 2 from controller, master controller and host computer with being connected and forming loop, and DC power supply apparatus charges to electric power storage parts 1, treats
Electric power storage parts 1 are full of after electric energy by electric power storage parts 1 is sent to discharge component 2 by electric energy, then by 2 pairs of discharge component from controller,
Master controller and host computer are discharged, and the first of control loop break-make is provided between electric power storage parts 1 and DC power supply apparatus and is opened
Close 11, discharge component 2 and between controller, master controller and host computer be provided with control loop break-make second switch 21, store
Electric part 1 and discharge component 2 are formed by electric capacity, using electric capacity as electric power storage parts 1 and discharge component 2 can make circuit it is simple,
Easy to operate, capacitor element not carrying magnetic in itself can also improve the electromagnetic compatibility problem of system.First switch 11 is connected, and second opens
Close 21 to disconnect, electric power storage parts 1 obtain electrical energy for storage from DC power supply apparatus；First switch 11 disconnects, and second switch 21 connects
Logical, 2 pairs of discharge component discharges from controller, master controller and host computer.First switch 11 and second switch 21 are optocoupler
Combination switch.There is broken thread detector between external signal input terminals and A/D controlling bus, broken thread detector passes through electric resistance partial pressure
A less negative voltage of relative value is obtained, input signal front end is connected to, it is negative equivalent to this in the case of input signal broken string
Power supply connects the input for being loaded into A/D controlling bus, and the value sampled is less than sampled value over the ground, and being used as broken string with this judges
Mark.Also include the temperature sensor of Acquisition Circuit plate temperature, master controller is connected with temperature sensor and controlled from control
Device timing is read outside cold junction temperature data and compensated.
Embodiment 2
Be the same as Example 1, difference is that electric power storage parts 1 and discharge component 2 are formed by inductance, when switch connection first make contact
When 3, inductance is connected with power supply and carries out electric power storage；When switching off first make contact 3 and connecting the second contact point 4, inductance pair
Discharged from controller, master controller and host computer.
In a word, presently preferred embodiments of the present invention, all equalizations made according to scope of the present invention patent be the foregoing is only
Change and modification, should all belong to the covering scope of patent of the present invention.
Claims (4)
1. for the anti-tampering high-performance input module of refrigerator, including DC power supply apparatus, it is characterised in that：Also include A/D
Controlling bus, from controller, master controller, host computer, heavy metal detector and supersonic generator, master controller connection is upper
It is connected with multiple from controller on machine, master controller, A/D controlling bus, A/D controlling bus is each respectively connected with from controller
Collect the external signal of multiple A/D channel receptions and be converted to data signal, FPGA coprocessor is passed through from controller
The data signal that A/D controlling bus is converted to maps to the external address space from controller and it is read out, can
The functional unit set in programmed logic coprocessor includes A/D timing control units, external address map unit, address generation
Device, RAM access control units, data input latch, Data output latch, memory, external address is passed through from controller
Map unit sends initial order to A/D timing control units and A/D controlling bus is sampled automatically, RAM access controls
The data obtained after each A/D Channel-shifteds are aggregated into data signal by A/D controlling bus and are latched in data input by unit
In latch, A/D timing control units control address generator to produce storage address, A/D sequential controls for current data signal
Unit processed sends write order to RAM access control units and the data signal of latch is stored in into memory in real time, and external address reflects
Penetrate unit and the data address in memory is mapped into external address space from controller, RAM access control units control number
Data output is given from controller according to output latch；Heavy metal detector and supersonic generator are arranged in refrigerator, weight
Metal detector and supersonic generator are connected by A/D controlling bus with from controller, heavy metal detector detection freezing
The content of heavy metal ion in machine simultaneously sends detection signal to from controller, is sent from controller analysis heavy metal detector
Detection signal simultaneously controls supersonic generator to work, and supersonic generator accelerates the huge sum of money in refrigerator by the ultrasonic wave of generation
Belong to the coagulation process of ion；Isolation module is installed, isolation module includes the electric power storage parts being connected with each other on DC power supply apparatus
(1) and discharge component (2), electric power storage parts (1) are connected with DC power supply apparatus and form loop, discharge component (2) with from control
Device, master controller and host computer connect and form loop, and electric power storage parts (1) are logical provided with control loop between DC power supply apparatus
Disconnected first switch (11), discharge component (2) and between controller, master controller and host computer provided with control loop break-make
Second switch (21).
2. the anti-tampering high-performance input module according to claim 1 for refrigerator, it is characterised in that：First switch
(11) and second switch (21) be optocoupler combination switch.
3. the anti-tampering high-performance input module according to claim 1 for refrigerator, it is characterised in that：External signal
There is broken thread detector between input and A/D controlling bus.
4. the anti-tampering high-performance input module according to claim 1 for refrigerator, it is characterised in that：Also include adopting
The temperature sensor of collector plate temperature, master controller is connected with temperature sensor and controlled outside cold from controller timing reading
End temperature data is compensated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340213.3A CN104949412B (en) | 2015-06-17 | 2015-06-17 | Anti-tampering high-performance input module for refrigerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510340213.3A CN104949412B (en) | 2015-06-17 | 2015-06-17 | Anti-tampering high-performance input module for refrigerator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104949412A CN104949412A (en) | 2015-09-30 |
| CN104949412B true CN104949412B (en) | 2017-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510340213.3A Active CN104949412B (en) | 2015-06-17 | 2015-06-17 | Anti-tampering high-performance input module for refrigerator |
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Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000002475A (en) * | 1998-06-16 | 2000-01-07 | Mitsubishi Heavy Ind Ltd | Cold heat plant control device |
| AU7174700A (en) * | 2000-05-04 | 2001-11-08 | Vasu Tech Limited | Configurable electronic controller |
| CN101364097B (en) * | 2008-09-22 | 2010-12-08 | 中国兵器工业第二○六研究所 | High real-time multichannel data acquisition system |
| CN203231598U (en) * | 2013-04-28 | 2013-10-09 | 深圳市桑霞太阳能有限公司 | Control system for variable frequency air source heat pump |
| CN203908150U (en) * | 2014-01-07 | 2014-10-29 | 基伊埃冷冻技术（苏州）有限公司 | Control system for industrial refrigerating unit |
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2015
- 2015-06-17 CN CN201510340213.3A patent/CN104949412B/en active Active
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