CN109459969A - A kind of safe light curtain IP kernel system - Google Patents
A kind of safe light curtain IP kernel system Download PDFInfo
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- CN109459969A CN109459969A CN201811245610.2A CN201811245610A CN109459969A CN 109459969 A CN109459969 A CN 109459969A CN 201811245610 A CN201811245610 A CN 201811245610A CN 109459969 A CN109459969 A CN 109459969A
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- 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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/058—Safety, monitoring
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- 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
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/05—Programmable logic controllers, e.g. simulating logic interconnections of signals according to ladder diagrams or function charts
- G05B19/056—Programming the PLC
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Abstract
The present invention relates to a kind of safe light curtain IP kernel systems characterized by comprising shine IP kernel and light IP kernel；The luminous IP kernel includes: luminous end scan interface module, shine logic module, luminous end scanning sequence and integrality monitoring module, luminous end voltage monitoring systems reseting module, luminous end master control logical sequence monitoring module, luminous end top control module, luminous end state indicator module, luminous end inspection self test failure processing module, luminous end modulation /demodulation module, luminous end Communications Processor Module, luminous end clock module, luminous end serial interface module, luminous end serial monitoring module.
Description
Technical field
The invention belongs to photoelectric protection technical fields, are related to a kind of safe light curtain IP kernel system.
Background technique
As China becomes the pay attention to day by day of the processing and manufacturing center in the world with country to safety in production, great thing is prevented
Therefore safety requirements it is also higher and higher.
International highest standard is also increased to the safety standard of metal forming machinery photoelectric protector (or safe light curtain)
IEC61496 (4 grades).
Currently, the light curtain product for obtaining (4 grades) of IEC61496 certifications only has Honeywell Inc., the U.S., Germany Shi Kegong
A few Zoomlion such as department, Japanese Omron Corp.The core technology of 4 grades of light curtains is exactly diagnosis coverage rate and complicated control
System processed.Reach the complexity that 4 grades of reliable request reduces whole system again, system must use high performance CPU and soft
Part system.The requirement of CPU and software is with strong points, can handle a large amount of parallel real-time events and interrupt event, response time are fast.State
Outer company relies on the leading superiority of its integrated circuit designed and manufactured, and using respective dedicated high-performance CPU and integrates
Circuit chip.Market can not obtain such CPU, and general CPU is unable to satisfy the particular/special requirement of performance.
CPU handles processing or sequential processes while concurrent event is not real.Only because the speed of CPU operation
Fastly, macroscopically feel to handle simultaneously.Moreover, the weakness that CPU and software systems have it that can not overcome: crash phenomenon.Once certain
A task occupies CPU for a long time to be discharged, and crash phenomenon occur, and other task events cannot be handled, whole system
It will paralyse.The generation of this imagination is reduced, soft and hardware system must increase a large amount of precautionary measures.Moreover, CPU's posts
Storage and the memory of software program are easy by external interference at runtime.This is in place of the deficiencies in the prior art.
Therefore, in view of the above-mentioned drawbacks in the prior art, provide and design a kind of safe light curtain IP kernel system；It is existing to solve
Drawbacks described above in technology, is necessary.
Summary of the invention
It is an object of the present invention to design a kind of safe light curtain IP kernel in view of the above-mentioned drawbacks of the prior art, providing
System, to solve the above technical problems.
To achieve the above object, the present invention provides following technical scheme:
A kind of safe light curtain IP kernel system characterized by comprising shine IP kernel and light IP kernel；
The luminous IP kernel includes: luminous end scan interface module, shine logic module, luminous end scanning sequence and
Integrality monitoring module, luminous end voltage monitoring systems reseting module, luminous end master control logical sequence monitoring module, luminous end are total
It controls module, luminous end state indicator module, luminous end inspection self test failure processing module, luminous end modulation /demodulation module, shine
Hold Communications Processor Module, luminous end clock module, luminous end serial interface module, luminous end serial monitoring module；
Luminous end scan interface module connects shine logic module, luminous end scanning sequence and integrality monitoring module,
Luminous end voltage monitoring systems reseting module connects luminous end master control logical sequence monitoring module, and luminous end master control is patrolled
It collects timing monitoring module and connects luminous end top control module,
Shine logic module, luminous end scanning sequence and the connection luminous end inspection self test failure processing of integrality monitoring module
Module, luminous logic module are also connected with luminous end top control module,
Luminous end state indicator module connects luminous end inspection self test failure processing module, at luminous end inspection self test failure
It manages module and connects luminous end Communications Processor Module, luminous end Communications Processor Module connects luminous end top control module, luminous end modulation
Demodulation module,
Luminous end modulation /demodulation module connects luminous end serial interface module, and luminous end serial interface module connects luminous end
Serial monitoring module,
Luminous end clock module connects luminous end serial interface module；
The light IP kernel includes: light-receiving end scan interface module, light logic module, light-receiving end state instruction mould
When block, light-receiving end scanning sequence and integrality monitoring module, light-receiving end voltage monitoring systems reseting module, light-receiving end master control logic
Sequence monitoring module, light-receiving end signal identification module, light-receiving end signal processing module, light-receiving end top control module, light-receiving end state tune
System and examination module, light-receiving end channel difference failure monitoring module, light-receiving end inspection self test failure processing module, light-receiving end clock
Synchronization module, light-receiving end clock supervision module, light-receiving end clock module, shine logic module, light-receiving end modulation /demodulation module, by
Light end serial interface module, light-receiving end Communications Processor Module, light-receiving end serial monitoring module, light-receiving end external device (ED) monitor mould
Block, light-receiving end control output driving module, light-receiving end output interface circuit monitoring module；
Light-receiving end scan interface module connects light logic module and light-receiving end scanning sequence and integrality monitoring module,
Light logic module connects light-receiving end channel difference failure monitoring module, light-receiving end top control module and light-receiving end inspection
Self test failure processing module,
Light-receiving end scanning sequence and integrality monitoring module connection light-receiving end inspection self test failure processing module and light-receiving end
Top control module,
Light-receiving end voltage monitoring systems reseting module connects light-receiving end master control logical sequence monitoring module, and light-receiving end master control is patrolled
It collects timing monitoring module and connects light-receiving end top control module,
Light-receiving end top control module connects light-receiving end channel difference failure monitoring module, light-receiving end scanning sequence and integrality prison
Control module, light-receiving end inspection self test failure processing module, light-receiving end Communications Processor Module, light-receiving end control output driving module,
The modulation of light-receiving end state and examination module, light-receiving end signal processing module, luminous logic module,
Light-receiving end signal processing module connects the modulation of light-receiving end state and screens module, light-receiving end signal identification module,
Light-receiving end inspection self test failure processing module connects light-receiving end channel difference failure monitoring module, light-receiving end clock prison
It controls module, the modulation of light-receiving end state and screens module, light-receiving end output interface circuit monitoring module, light-receiving end communication process mould
Block, light-receiving end external device (ED) monitoring module,
Light-receiving end clock supervision module connects light-receiving end clock synchronization module and light-receiving end clock module,
The modulation of light-receiving end state connect light-receiving end control output driving module with module is screened, and light-receiving end controls output driving
Module connects light-receiving end external device (ED) monitoring module, light-receiving end output interface circuit monitoring module,
The logic module that shines connects light-receiving end modulation /demodulation module, and light-receiving end modulation /demodulation module connects light-receiving end mailing address
Module, light-receiving end serial interface module are managed,
Light-receiving end serial interface module connects light-receiving end clock module, light-receiving end serial monitoring module.
It is filtered preferably, the luminous end communication process block is realized by following steps:
S1: being directly based upon reception data, carries out matched filtering；
S2: data are received after bandpass filtering, carry out matching treatment；
S3: whitening processing directly is carried out to reception data；
S4: data are received after bandpass filtering, carry out whitening processing；
S5: data are received after bandpass filtering, carry out the filter design treatment under similar constraint.
It is filtered preferably, the light-receiving end Communications Processor Module is realized by following steps:
S1: being directly based upon reception data, carries out matched filtering；
S2: data are received after bandpass filtering, carry out matching treatment；
S3: whitening processing directly is carried out to reception data；
S4: data are received after bandpass filtering, carry out whitening processing；
S5: data are received after bandpass filtering, carry out the filter design treatment under similar constraint.
Preferably, whitening processing mode is as follows in the step S3 and S4:
Wherein, receiving data is column vector r, ()TIndicate that transposition, R are noise covariance matrix, s -1, s+1 indicate hair
Deliver letters breath " -1 ", "+1 " waveform, d be when leading decision symbol.
Preferably, similar constraint refers to control filter at a distance from transmitting signal at some in the step S5
In range, to constrain filter characteristic indirectly.The expression formula of similar constraint can be denoted as:
||w-s||2≤ε
Wherein, w is filter response, and s is transmitting signal, and ε is the constraint upper limit, | | | | indicate two norms；
Under similarity constraint condition, indicated by the filter of optimization aim of signal-to-noise ratio are as follows:
s.t ||w||2=1, | | s | |2=1, | wTs|≥1-ε/2；
Optimal solution are as follows:
Wherein, ε wf is the similarity in the case of prewhitening filter, related with noise R covariance；And λ ε be certain equation only
One solution.
The beneficial effects of the present invention are use general high performance programmable logical device (PLD or FPGA), Ji Keshi
The complicated intelligent control function that existing dedicated high-performance CPU and software systems are just able to achieve；And logical device is once comprehensive solid
Change, will not change, strong antijamming capability；Its logical device is true hardware logic blocks, and each logic module is individually present,
Signal processing to light curtain is real concurrent processing, and quickly, and the crash phenomenon of software is not present in speed, and reliability is very high；
It may be implemented in system update flogic system, conducive to safeguarding in system upgrade for safe light curtain；It is hard in logical device system nature
Part system, there is no the defects of software systems, it is not necessary to do the more complicated certification for requiring higher IEC61508 (SIL3), be conducive to
Safe light curtain (or safe photoelectricity protection sensor) is authenticated by 4 level securities, is realized the production domesticization of high-end safe light curtain, is broken state
Outer monopolization.
In addition, design principle of the present invention is reliable, structure is simple, has very extensive application prospect.
It can be seen that compared with prior art, the present invention have substantive distinguishing features outstanding and it is significant ground it is progressive, implementation
Beneficial effect be also obvious.
Detailed description of the invention
Fig. 1 is the functional block diagram of luminous IP kernel in a kind of safe light curtain IP kernel system provided by the invention.
Fig. 2 is the functional block diagram of light IP kernel in a kind of safe light curtain IP kernel system provided by the invention.
Wherein, 1.1- luminous end scan interface module, 1.2- shine logic module, 1.3- luminous end scanning sequence and complete
Property monitoring module, 1.4- luminous end voltage monitoring systems reseting module, 1.5- luminous end master control logical sequence monitoring module, 1.6-
Luminous end top control module, 1.7- luminous end state indicator module, 1.8- luminous end inspection self test failure processing module, 1.9- shine
Hold modulation /demodulation module, 1.10- luminous end Communications Processor Module, 1.11- luminous end clock module, 1.12- luminous end serial interface
Mouth mold block, 1.13- luminous end serial monitoring module；
2.1- light-receiving end scan interface module, 2.2- light logic module, 2.3- light-receiving end state indicator module, 2.4- by
Light end scanning sequence and integrality monitoring module, 2.5- light-receiving end voltage monitoring systems reseting module, 2.6- light-receiving end master control are patrolled
Collect timing monitoring module, 2.7- light-receiving end signal identification module, 2.8- light-receiving end signal processing module, 2.9- light-receiving end master control mould
Block, the modulation of 2.10- light-receiving end state and examination module, 2.11- light-receiving end channel difference failure monitoring module, 2.12- light-receiving end
Inspection self test failure processing module, 2.13- light-receiving end clock synchronization module, 2.14- light-receiving end clock supervision module, 2.15- by
Light end clock module, 2.16- light-receiving end modulation /demodulation module, 2.17- light-receiving end serial interface module, the communication of 2.18- light-receiving end
Processing module, 2.19- light-receiving end serial monitoring module, 2.20- light-receiving end external device (ED) monitoring module, the control of 2.21- light-receiving end
Output driving module, 2.22- light-receiving end output interface circuit monitoring module.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing and by specific embodiment, and following embodiment is to the present invention
Explanation, and the invention is not limited to following implementation.
As illustrated in fig. 1 and 2, a kind of safe light curtain IP kernel system provided by the invention, comprising: shine IP kernel and light IP
Core；
The luminous IP kernel includes: luminous end scan interface module 1.1, the logic module 1.2 that shines, luminous end scanning
Timing and integrality monitoring module 1.3, luminous end voltage monitoring systems reseting module 1.4, the monitoring of luminous end master control logical sequence
Module 1.5, luminous end top control module 1.6, luminous end state indicator module 1.7, luminous end inspection self test failure processing module
1.8, luminous end modulation /demodulation module 1.9, luminous end Communications Processor Module 1.10, luminous end clock module 1.11, luminous end string
Line interface module 1.12, luminous end serial monitoring module 1.13；
Luminous end scan interface module 1.1 connects shine logic module 1.2, luminous end scanning sequence and integrality and monitors mould
Block 1.3,
Luminous end voltage monitoring systems reseting module 1.4 connects luminous end master control logical sequence monitoring module 1.5, luminous end
Master control logical sequence monitoring module 1.5 connects luminous end top control module 1.6,
Shine logic module 1.2, luminous end scanning sequence and the connection luminous end inspection self-test event of integrality monitoring module 1.3
Hindering processing module 1.8, the logic module 1.2 that shines is also connected with luminous end top control module 1.6,
Luminous end state indicator module 1.7 connects luminous end inspection self test failure processing module 1.8, luminous end inspection self-test
Fault processing module 1.8 connects luminous end Communications Processor Module 1.10, and it is total that luminous end Communications Processor Module 1.10 connects luminous end
Module 1.6, luminous end modulation /demodulation module 1.9 are controlled,
Luminous end modulation /demodulation module 1.9 connects luminous end serial interface module 1.12, luminous end serial interface module
1.12 connection luminous end serial monitoring modules 1.13,
Luminous end clock module 1.11 connects luminous end serial interface module 1.12；
The light IP kernel includes: light-receiving end scan interface module 2.1, light logic module 2.2, light-receiving end state
Indicating module 2.3, light-receiving end scanning sequence and integrality monitoring module 2.4, light-receiving end voltage monitoring systems reseting module 2.5,
Light-receiving end master control logical sequence monitoring module 2.6, light-receiving end signal identification module 2.7, light-receiving end signal processing module 2.8, by
Light end top control module 2.9, light-receiving end state modulation with screen module 2.10, light-receiving end channel difference failure monitoring module 2.11,
Light-receiving end inspection self test failure processing module 2.12, light-receiving end clock synchronization module 2.13, light-receiving end clock supervision module 2.14,
Light-receiving end clock module 2.15, shine logic module 1.2, light-receiving end modulation /demodulation module 2.16, light-receiving end serial interface module
2.17, light-receiving end Communications Processor Module 2.18, light-receiving end serial monitoring module 2.19, light-receiving end external device (ED) monitoring module
2.20, light-receiving end controls output driving module 2.21, light-receiving end output interface circuit monitoring module 2.22；
Light-receiving end scan interface module 2.1 connects light logic module 2.2 and light-receiving end scanning sequence and integrality monitoring
Module 2.4,
Light logic module 2.2 connects light-receiving end channel difference failure monitoring module 2.11,2.9 and of light-receiving end top control module
Light-receiving end inspection self test failure processing module 2.12,
Light-receiving end scanning sequence and integrality monitoring module 2.4 connect 2.12 He of light-receiving end inspection self test failure processing module
Light-receiving end top control module 2.9,
Light-receiving end voltage monitoring systems reseting module 2.5 connects light-receiving end master control logical sequence monitoring module 2.6, light-receiving end
Master control logical sequence monitoring module 2.6 connects light-receiving end top control module 2.9,
Light-receiving end top control module 2.9 connect light-receiving end channel difference failure monitoring module 2.11, light-receiving end scanning sequence and
Integrality monitoring module 2.4, light-receiving end inspection self test failure processing module 2.12, light-receiving end Communications Processor Module 2.18, light
End control output driving module 2.21, the modulation of light-receiving end state and examination module 2.10, light-receiving end signal processing module 2.8, hair
Light logic module 1.2,
Light-receiving end signal processing module 2.8 connects the modulation of light-receiving end state and screens module 2.10, light-receiving end signal identification
Module 2.7,
Light-receiving end inspection self test failure processing module 2.12 connects light-receiving end channel difference failure monitoring module 2.11, light
It holds clock supervision module 2.14, the modulation of light-receiving end state and screens module 2.10, light-receiving end output interface circuit monitoring module
2.22, light-receiving end Communications Processor Module 2.18, light-receiving end external device (ED) monitoring module 2.20,
Light-receiving end clock supervision module 2.14 connects light-receiving end clock synchronization module 2.13 and light-receiving end clock module 2.15,
The modulation of light-receiving end state connect light-receiving end control output driving module 2.21, light-receiving end control with module 2.10 is screened
Output driving module 2.21 connects light-receiving end external device (ED) monitoring module 2.20, light-receiving end output interface circuit monitoring module
2.22
The logic module 1.2 that shines connects light-receiving end modulation /demodulation module 2.16, and light-receiving end modulation /demodulation module 2.16 connects
Light-receiving end Communications Processor Module 2.18, light-receiving end serial interface module 2.17,
Light-receiving end serial interface module 2.17 connects light-receiving end clock module 2.15, light-receiving end serial monitoring module 2.19.
In the present embodiment, the luminous end communication process block is realized by following steps and is filtered:
S1: being directly based upon reception data, carries out matched filtering；
S2: data are received after bandpass filtering, carry out matching treatment；
S3: whitening processing directly is carried out to reception data；
S4: data are received after bandpass filtering, carry out whitening processing；
S5: data are received after bandpass filtering, carry out the filter design treatment under similar constraint.
In the present embodiment, the light-receiving end Communications Processor Module is realized by following steps and is filtered:
S1: being directly based upon reception data, carries out matched filtering；
S2: data are received after bandpass filtering, carry out matching treatment；
S3: whitening processing directly is carried out to reception data；
S4: data are received after bandpass filtering, carry out whitening processing；
S5: data are received after bandpass filtering, carry out the filter design treatment under similar constraint.
In the present embodiment, whitening processing mode is as follows in the step S3 and S4:
Wherein, receiving data is column vector r, ()TIndicate that transposition, R are noise covariance matrix, s -1, s+1 indicate hair
Deliver letters breath " -1 ", "+1 " waveform, d be when leading decision symbol.
In the present embodiment, in the step S5, similar constraint refers to control filter at a distance from transmitting signal a certain
In a range, to constrain filter characteristic indirectly.The expression formula of similar constraint can be denoted as:
||w-s||2≤ε
Wherein, w is filter response, and s is transmitting signal, and ε is the constraint upper limit, | | | | indicate two norms；
Under similarity constraint condition, indicated by the filter of optimization aim of signal-to-noise ratio are as follows:
s.t ||w||2=1, | | s | |2=1, | wTs|≥1-ε/2；
Optimal solution are as follows:
Wherein, ε wf is the similarity in the case of prewhitening filter, related with noise R covariance；And λ ε be certain equation only
One solution.
Disclosed above is only the preferred embodiment of the present invention, but the present invention is not limited to this, any this field
What technical staff can think does not have creative variation, and without departing from the principles of the present invention made by several improvement and
Retouching, should all be within the scope of the present invention.
Claims (5)
1. a kind of safe light curtain IP kernel system characterized by comprising shine IP kernel and light IP kernel；
The luminous IP kernel includes: luminous end scan interface module, the logic module that shines, luminous end scanning sequence and complete
Property monitoring module, luminous end voltage monitoring systems reseting module, luminous end master control logical sequence monitoring module, luminous end master control mould
Block, luminous end state indicator module, luminous end inspection self test failure processing module, luminous end modulation /demodulation module, luminous end are logical
Believe processing module, luminous end clock module, luminous end serial interface module, luminous end serial monitoring module；
Luminous end scan interface module connects shine logic module, luminous end scanning sequence and integrality monitoring module,
Luminous end voltage monitoring systems reseting module connects luminous end master control logical sequence monitoring module, when luminous end master control logic
Sequence monitoring module connects luminous end top control module,
Shine logic module, luminous end scanning sequence and integrality monitoring module connection luminous end inspection self test failure processing mould
Block, luminous logic module are also connected with luminous end top control module,
Luminous end state indicator module connects luminous end inspection self test failure processing module, and luminous end inspection self test failure handles mould
Block connects luminous end Communications Processor Module, and luminous end Communications Processor Module connects luminous end top control module, luminous end modulation /demodulation
Module,
Luminous end modulation /demodulation module connects luminous end serial interface module, and luminous end serial interface module connects luminous end serial ports
Monitoring module,
Luminous end clock module connects luminous end serial interface module；
The light IP kernel includes: light-receiving end scan interface module, light logic module, light-receiving end state indicator module,
Light-receiving end scanning sequence and integrality monitoring module, light-receiving end voltage monitoring systems reseting module, light-receiving end master control logical sequence
Monitoring module, light-receiving end signal identification module, light-receiving end signal processing module, light-receiving end top control module, the modulation of light-receiving end state
Module, light-receiving end channel difference failure monitoring module, light-receiving end inspection self test failure processing module, light-receiving end clock are same with screening
Walk module, light-receiving end clock supervision module, light-receiving end clock module, luminous logic module, light-receiving end modulation /demodulation module, light
Hold serial interface module, light-receiving end Communications Processor Module, light-receiving end serial monitoring module, light-receiving end external device (ED) monitoring module,
Light-receiving end controls output driving module, light-receiving end output interface circuit monitoring module；
Light-receiving end scan interface module connects light logic module and light-receiving end scanning sequence and integrality monitoring module,
Light logic module connects light-receiving end channel difference failure monitoring module, light-receiving end top control module and light-receiving end inspection self-test
Fault processing module,
Light-receiving end scanning sequence and integrality monitoring module connection light-receiving end inspection self test failure processing module and light-receiving end master control
Module,
Light-receiving end voltage monitoring systems reseting module connects light-receiving end master control logical sequence monitoring module, when light-receiving end master control logic
Sequence monitoring module connects light-receiving end top control module,
Light-receiving end top control module connects light-receiving end channel difference failure monitoring module, light-receiving end scanning sequence and integrality and monitors mould
Block, light-receiving end inspection self test failure processing module, light-receiving end Communications Processor Module, light-receiving end control output driving module, light
The modulation of end state and examination module, light-receiving end signal processing module, luminous logic module,
Light-receiving end signal processing module connects the modulation of light-receiving end state and screens module, light-receiving end signal identification module,
Light-receiving end inspection self test failure processing module connects light-receiving end channel difference failure monitoring module, light-receiving end clock supervision mould
Block, light-receiving end state modulation with screen module, light-receiving end output interface circuit monitoring module, light-receiving end Communications Processor Module, by
Light end external device (ED) monitoring module,
Light-receiving end clock supervision module connects light-receiving end clock synchronization module and light-receiving end clock module,
The modulation of light-receiving end state connect light-receiving end control output driving module with module is screened, and light-receiving end controls output driving module
Light-receiving end external device (ED) monitoring module, light-receiving end output interface circuit monitoring module are connected,
The logic module that shines connects light-receiving end modulation /demodulation module, and light-receiving end modulation /demodulation module connects light-receiving end communication process mould
Block, light-receiving end serial interface module,
Light-receiving end serial interface module connects light-receiving end clock module, light-receiving end serial monitoring module.
2. a kind of safe light curtain IP kernel system according to claim 1, which is characterized in that the luminous end communication process block
It is realized and is filtered by following steps:
S1: being directly based upon reception data, carries out matched filtering；
S2: data are received after bandpass filtering, carry out matching treatment；
S3: whitening processing directly is carried out to reception data；
S4: data are received after bandpass filtering, carry out whitening processing；
S5: data are received after bandpass filtering, carry out the filter design treatment under similar constraint.
3. a kind of safe light curtain TP core system according to claim 2, which is characterized in that the light-receiving end communication process mould
Block is realized by following steps and is filtered:
S1: being directly based upon reception data, carries out matched filtering；
S2: data are received after bandpass filtering, carry out matching treatment；
S3: whitening processing directly is carried out to reception data；
S4: data are received after bandpass filtering, carry out whitening processing；
S5: data are received after bandpass filtering, carry out the filter design treatment under similar constraint.
4. a kind of safe light curtain IP kernel system according to claim 3, which is characterized in that albefaction in the step S3 and S4
Processing mode is as follows:
Wherein, receiving data is column vector r, ()TIndicate that transposition, R are noise covariance matrix, s-1, s+1 indicate to send information
The waveform of " -1 ", "+1 ", d are when leading decision symbol.
5. a kind of safe light curtain IP kernel system according to claim 4, which is characterized in that in the step S5, it is similar about
Beam refers to control filter and emits at a distance from signal within the scope of some, to constrain filter characteristic indirectly；It is similar about
The expression formula of beam can be denoted as:
||w-s||2≤ε
Wherein, w is filter response, and s is transmitting signal, and ε is the constraint upper limit, | | | | indicate two norms；
Under similarity constraint condition, indicated by the filter of optimization aim of signal-to-noise ratio are as follows:
s.t||w||2=1, | | s | |2=1, | wTs|≥1-ε/2；
Optimal solution are as follows:
Wherein, ε wf is the similarity in the case of prewhitening filter, related with noise R covariance；λ ε is the unique solution of certain equation.
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Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004317209A (en) * | 2003-04-14 | 2004-11-11 | Omron Corp | Light curtain |
| US20050247102A1 (en) * | 2002-11-05 | 2005-11-10 | Dirk Schneiderheinze | Safety apparatus for a machine, in particular for a press brake |
| JP4131134B2 (en) * | 2002-07-09 | 2008-08-13 | 株式会社ジェイテクト | Control device, input circuit thereof, and signal input method of control device |
| CN201140922Y (en) * | 2007-12-12 | 2008-10-29 | 江苏天奇物流系统工程股份有限公司 | Conveyer equipped with safety unavailable component |
| CN102744346A (en) * | 2012-07-17 | 2012-10-24 | 济宁科力光电产业有限责任公司 | Dynamic self-check method of safety light curtain |
| CN202880635U (en) * | 2012-09-29 | 2013-04-17 | 宁波微科光电有限公司 | Elevator light curtain controller with voice prompt function |
| CN203177888U (en) * | 2013-03-29 | 2013-09-04 | 上海兰宝传感科技股份有限公司 | Level-four light curtain sensor |
| CN103389039A (en) * | 2013-07-18 | 2013-11-13 | 常州工学院 | High-speed and high-precision light curtain detection device based on FPGA (field programmable gate array) and FPAA (field programmable analog array) |
| CN104122600A (en) * | 2013-04-24 | 2014-10-29 | 赛德斯安全与自动化公司 | Optical unit, light curtain and method for allocating an individual address |
| CN104795010A (en) * | 2015-04-16 | 2015-07-22 | 济宁科力光电产业有限责任公司 | Wireless safety light curtain detecting method and light curtain thereof |
| CN105259588A (en) * | 2015-11-04 | 2016-01-20 | 常州工学院 | Light curtain detection device without dedicated sync cable, and method therefor |
| US20160041301A1 (en) * | 2014-08-08 | 2016-02-11 | Omron Corporation | Multi-optical axis photoelectric sensor |
| US20160178794A1 (en) * | 2014-12-22 | 2016-06-23 | Rockwell Automation Technologies, Inc. | Light curtain sensitivity optimization |
| CN205426185U (en) * | 2015-12-18 | 2016-08-03 | 天津市杰泰克自动化技术有限公司 | Measure circuit of light curtain |
| US20170038494A1 (en) * | 2015-08-05 | 2017-02-09 | Banner Engineering Corp. | Field installable light curtain status module |
| CN108421927A (en) * | 2018-05-09 | 2018-08-21 | 金川集团股份有限公司 | A kind of bender Intelligent human body protector |
-
2018
- 2018-10-24 CN CN201811245610.2A patent/CN109459969B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4131134B2 (en) * | 2002-07-09 | 2008-08-13 | 株式会社ジェイテクト | Control device, input circuit thereof, and signal input method of control device |
| US20050247102A1 (en) * | 2002-11-05 | 2005-11-10 | Dirk Schneiderheinze | Safety apparatus for a machine, in particular for a press brake |
| JP2004317209A (en) * | 2003-04-14 | 2004-11-11 | Omron Corp | Light curtain |
| CN201140922Y (en) * | 2007-12-12 | 2008-10-29 | 江苏天奇物流系统工程股份有限公司 | Conveyer equipped with safety unavailable component |
| CN102744346A (en) * | 2012-07-17 | 2012-10-24 | 济宁科力光电产业有限责任公司 | Dynamic self-check method of safety light curtain |
| CN202880635U (en) * | 2012-09-29 | 2013-04-17 | 宁波微科光电有限公司 | Elevator light curtain controller with voice prompt function |
| CN203177888U (en) * | 2013-03-29 | 2013-09-04 | 上海兰宝传感科技股份有限公司 | Level-four light curtain sensor |
| CN104122600A (en) * | 2013-04-24 | 2014-10-29 | 赛德斯安全与自动化公司 | Optical unit, light curtain and method for allocating an individual address |
| CN103389039A (en) * | 2013-07-18 | 2013-11-13 | 常州工学院 | High-speed and high-precision light curtain detection device based on FPGA (field programmable gate array) and FPAA (field programmable analog array) |
| US20160041301A1 (en) * | 2014-08-08 | 2016-02-11 | Omron Corporation | Multi-optical axis photoelectric sensor |
| US20160178794A1 (en) * | 2014-12-22 | 2016-06-23 | Rockwell Automation Technologies, Inc. | Light curtain sensitivity optimization |
| CN104795010A (en) * | 2015-04-16 | 2015-07-22 | 济宁科力光电产业有限责任公司 | Wireless safety light curtain detecting method and light curtain thereof |
| US20170038494A1 (en) * | 2015-08-05 | 2017-02-09 | Banner Engineering Corp. | Field installable light curtain status module |
| CN105259588A (en) * | 2015-11-04 | 2016-01-20 | 常州工学院 | Light curtain detection device without dedicated sync cable, and method therefor |
| CN205426185U (en) * | 2015-12-18 | 2016-08-03 | 天津市杰泰克自动化技术有限公司 | Measure circuit of light curtain |
| CN108421927A (en) * | 2018-05-09 | 2018-08-21 | 金川集团股份有限公司 | A kind of bender Intelligent human body protector |
Non-Patent Citations (2)
| Title |
|---|
| 姜博，等: "基于FPGA的安全光幕的设计与实现", 《现代电子技术》 * |
| 王学军，等: "基于国际标准IEC61496-1_2(Type 4)安全光幕的软核设计", 《锻压装备与制造技术》 * |
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| CN109459969B (en) | 2021-03-02 |
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