CN107643239A - Dust concentration sensor based on PROFIBUS fieldindustrybus - Google Patents
Dust concentration sensor based on PROFIBUS fieldindustrybus Download PDFInfo
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- CN107643239A CN107643239A CN201610599418.8A CN201610599418A CN107643239A CN 107643239 A CN107643239 A CN 107643239A CN 201610599418 A CN201610599418 A CN 201610599418A CN 107643239 A CN107643239 A CN 107643239A
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- microprocessor
- dust concentration
- profibus
- fieldindustrybus
- interface
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- 239000000428 dust Substances 0.000 title claims abstract description 40
- 238000004891 communication Methods 0.000 claims abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 6
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- 239000013078 crystal Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000006855 networking Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008054 signal transmission Effects 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- 230000009897 systematic effect Effects 0.000 description 1
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Abstract
The present invention relates to a kind of dust concentration sensor based on PROFIBUS fieldindustrybus, including：First microprocessor and the second microprocessor, first microprocessor is bi-directionally connected with the second microprocessor by serial communication interface, the first microprocessor is by the dust concentration signal of A/D interface dust concentration sensors, and the second microprocessor passes sequentially through VPC3+C Bus Interface Chips and RS485 interface circuits are connected with PROFIBUS fieldindustrybus.Compared to existing technologies, strong antijamming capability, reliability are high and can realize totally digitilized collection by the present invention.
Description
Technical field
The invention belongs to industrial instruments field, more particularly to a kind of ash based on PROFIBUS fieldindustrybus
Dust concentration sensor.
Background technology
Current China's air pollution is serious, and industrial production is one of important pollution sources, in order to reduce caused by industrial production
Dust pollutes, and the detection to production environment becomes more important.With the development of information technology and field bus technique, ring
Border monitoring develops to intelligent, networking direction, monitoring instrument also by it is traditional it is single monitor it is comprehensive, intelligent,
Networking direction is developed.Fieldindustrybus PROFIBUS is increasingly being used in industrial process control system, urgently
A kind of dust concentration sensor with field bus communication function is needed, realizes the real-time prison to industrial environment dust concentration
Survey.
The content of the invention
The present invention provides one kind compared to existing technologies to solve technical problem present in known technology, anti-interference
Ability is strong, reliability is high and can realize that the dust concentration based on PROFIBUS fieldindustrybus of total digitalization collection passes
Sensor.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of dust concentration sensor based on PROFIBUS fieldindustrybus, including：First microprocessor and second micro-
Processor, first microprocessor are bi-directionally connected with the second microprocessor by serial communication interface, and the first microprocessor leads to
The dust concentration signal of A/D interface dust concentration sensors is crossed, the second microprocessor passes sequentially through VPC3+C buses and connect
Mouth chip and RS485 interface circuits are connected with PROFIBUS fieldindustrybus.
In order to solve the above technical problems, the present invention is by there is above-mentioned technical proposal.
Compared with prior art, it is of the invention to the improvement is that, A/D interfaces ash is utilized by first microprocessor
The dust concentration signal of dust concentration sensor, by digital filtering algorithm with calculate after, using serial communication interface by the ash
Dust concentration signal is transferred to the second microprocessor, is replied after the second microprocessor reception correct data and has received correct data
Signal to first processor, afterwards, the second microprocessor transmits the dust concentration signal to VPC3+C EBI cores
Piece, then VPC3+C Bus Interface Chips are connected with RS485 interface circuits, you can realize and pass the dust concentration signal
Transport on PROFIBUS fieldindustrybus, afterwards, dust concentration signal transmits via PROFIBUS fieldindustrybus
To dust concentration acquisition system, to realize the digital collection based on PROFIBUS fieldbus of dust concentration information.
In above-mentioned technical proposal, the present invention can also use following technical measures：The RS485 interface circuits use
ADM2486 is as interface chip.The RS485 interface circuits, as interface chip, simplify RS485 using ADM2486
Interface circuit global design, improve stability in the operation of foregoing circuit structure.
In above-mentioned technical proposal, the present invention can also use following technical measures：The first microprocessor is ATMEGA88
Chip, second microprocessor are ATMEGA162 chips.By using two high integration, high performance microprocessor
Each functional block is integrated into a module by device so that circuit in above-mentioned technical proposal is simple, peripheral components are few.
The present invention has the advantage that specific as follows with good effect：
Improvement based on above-mentioned technical proposal, present invention employs dual micro processor structure, in foregoing circuit structure, two
Individual microprocessor performs different tasks and is in communication with each other therebetween respectively, is effectively improved the stability of signal transmission
And reliability；VPC3+C Bus Interface Chips are additionally used to realize PROFIBUS Digital Signals functions, are added
Transmitting data information bearing capacity and diversity, not only solve loss and interference in analog signal transmission, improve anti-interference
Ability, moreover, also improving the stability of whole circuit structure, reliability and scalability；In addition, also pass through by
VPC3+C Bus Interface Chips are connected with RS485 interface circuits, realize the ash based on PROFIBUS fieldindustrybus
Dust concentration signal acquisition.
Based on the improvement of above-mentioned optimal technical scheme, technical scheme is able to further perfect, on the one hand, institute
RS485 interface circuits are stated using ADM2486 as interface chip, RS485 interface circuits is simplified, improves above-mentioned electricity
Stability in line structure operation；On the other hand, by using two high integration, high performance microprocessor by each work(
Can block be integrated into a module so that circuit in above-mentioned technical proposal is simple, peripheral components are few.
Brief description of the drawings
Fig. 1 the structural representation of present invention；
Fig. 2 is first microprocessor circuit diagram in Fig. 1；
Fig. 3 is the second microprocessor and Bus Interface Chip circuit diagram in Fig. 1；
Fig. 4 is RS485 interface circuit figures in Fig. 1.
Embodiment
The embodiment of the present invention is described further below in conjunction with the accompanying drawings.Herein it should be noted that for this
The explanation of a little embodiments is used to help understand the present invention, but does not form limitation of the invention.In addition, retouched below
As long as the technical characteristic being related in each embodiment of the invention stated does not form conflict can mutually group each other
Close.
Embodiment one：
A kind of dust concentration sensor based on PROFIBUS fieldindustrybus, as shown in Figure 1.It is by dust concentration
The circuit structures such as sensor, first microprocessor, the second microprocessor, VPC3+C Bus Interface Chips and RS485 interfaces
Into.
In the present embodiment, first microprocessor has selected the ATMEGA88 high-performance microprocessors of atmel corp,
The functions such as its integrated A/D converter, watchdog circuit, Flash and EEPROM；Second microprocessor is selected
ATMEGA162 high-performance microprocessors, it has the characteristics of big ram in slice area, high speed, low-power consumption.
First microprocessor by A/D interface dust concentrations sensor (such as：GP2Y1010AU0F SHARP)
Dust concentration signal, first microprocessor are connected with the second microprocessor by serial communication interface, and the second microprocessor will
The dust concentration information of first microprocessor is sent to dust concentration acquisition system by bus protocol chip VPC3+C.
Each several part circuit is illustrated below：
The circuit of first microprocessor control section, as shown in Figure 2.It mainly includes first microprocessor ATMEGA88
Chip, crystal oscillating circuit etc., all software programs and systematic parameter are respectively stored in the Flash of ATMEGA88V chips
In EEPROM, crystal oscillating circuit provides stable clock signal to ATMEGA88 chips.ATMEGA88 with
GP2Y1010AU0F connections, while transmit a signal to second processor.
Second microprocessor and the circuit of VPC3+C Bus Interface Chips coupling part, as shown in Figure 3.EBI core
Piece selects the VPC3+C of Profichip companies, the second microprocessor ATMEGA162 control VPC3+C EBI cores
Piece, and the data exchange with first microprocessor ATMEGA88 is completed by serial communication interface.Due to
ATMEGA162 has been internally integrated watchdog circuit and the ram in slice of 1280 bytes so that it controls VPC3+C total
The circuit of line interface chip is simple, control is flexible.For ATMEGA162, VPC3+C Bus Interface Chip phases
When the external RAM extended in it, by data address multiplex bus (DB0~DB7) and address wire (AB0~
AB3) it is connected with ATMEGA162 PA mouths and PC mouths, the address realms of VPC3+C Bus Interface Chips is from 0x1000
To 0x1FFF.
RS485 interface circuits, as shown in Figure 4.To improve the reliability of system and eliminating extraneous interference signal, RS485
Interface circuit is using ADM2486 as interface chip.
The operation principle of above circuit system is：
The dust concentration signal of A/D interface dust concentration sensors is utilized by first microprocessor, is filtered by numeral
Ripple algorithm by the dust concentration signal with after calculating, the second microprocessor, second micro- place are transferred to using serial communication interface
Reason device replys the signal for having received correct data to first processor, afterwards, the second microprocessor after receiving correct data
The dust concentration signal is transmitted to VPC3+C Bus Interface Chips, then VPC3+C Bus Interface Chips are connect with RS485
Mouth circuit is connected, you can realization transmits the dust concentration signal to PROFIBUS fieldindustrybus, and finally sends out
Dust concentration acquisition system is given, in order to realize that the digitlization based on PROFIBUS fieldbus of dust concentration information is adopted
Collection.
It these are only the preferred embodiment of the present invention, it is noted that for those skilled in the art,
Without departing from the technical principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (3)
- A kind of 1. dust concentration sensor based on PROFIBUS fieldindustrybus, it is characterised in that：Including：First Microprocessor and the second microprocessor, first microprocessor are bi-directionally connected with the second microprocessor by serial communication interface, institute Dust concentration signal of the first microprocessor by A/D interface dust concentration sensors is stated, the second microprocessor is successively It is connected by VPC3+C Bus Interface Chips and RS485 interface circuits with PROFIBUS fieldindustrybus.
- 2. the dust concentration sensor according to claim 1 based on PROFIBUS fieldindustrybus, its feature It is：The RS485 interface circuits are using ADM2486 as interface chip.
- 3. the dust concentration sensor according to claim 1 or 2 based on PROFIBUS fieldindustrybus, its It is characterised by：The first microprocessor is ATMEGA88 chips, and second microprocessor is ATMEGA162 chips.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599418.8A CN107643239A (en) | 2016-07-22 | 2016-07-22 | Dust concentration sensor based on PROFIBUS fieldindustrybus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610599418.8A CN107643239A (en) | 2016-07-22 | 2016-07-22 | Dust concentration sensor based on PROFIBUS fieldindustrybus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107643239A true CN107643239A (en) | 2018-01-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610599418.8A Pending CN107643239A (en) | 2016-07-22 | 2016-07-22 | Dust concentration sensor based on PROFIBUS fieldindustrybus |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093383U (en) * | 2011-05-31 | 2011-12-28 | 天津市津达执行器有限公司 | Field bus control module of VPC3+C chip-based electric execution mechanism |
-
2016
- 2016-07-22 CN CN201610599418.8A patent/CN107643239A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202093383U (en) * | 2011-05-31 | 2011-12-28 | 天津市津达执行器有限公司 | Field bus control module of VPC3+C chip-based electric execution mechanism |
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Application publication date: 20180130 |
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| RJ01 | Rejection of invention patent application after publication |