CN106681239A - Scanning module - Google Patents
Scanning module Download PDFInfo
- Publication number
- CN106681239A CN106681239A CN201710154580.3A CN201710154580A CN106681239A CN 106681239 A CN106681239 A CN 106681239A CN 201710154580 A CN201710154580 A CN 201710154580A CN 106681239 A CN106681239 A CN 106681239A
- Authority
- CN
- China
- Prior art keywords
- circuit
- electrically connected
- cpu
- isolation circuit
- circuits
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 31
- 230000004224 protection Effects 0.000 claims abstract description 16
- 238000004891 communication Methods 0.000 claims abstract description 13
- 230000005611 electricity Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 230000005693 optoelectronics Effects 0.000 abstract 5
- 230000006641 stabilisation Effects 0.000 abstract 2
- 238000011105 stabilization Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 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
- 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
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- 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
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/25—Pc structure of the system
- G05B2219/25257—Microcontroller
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Electronic Switches (AREA)
Abstract
The invention discloses a scanning module which comprises a DC protection circuit, a DC-DC isolation circuit, a 3.3V voltage stabilization circuit, a CPU micro controller and an input optoelectronic isolation circuit, an output optoelectronic isolation circuit and a communication magnetic isolation circuit in electrical connection with the CPU micro controller. The DC protection circuit, the DC-DC isolation circuit and the 3.3V voltage stabilization circuit are sequentially connected and are electrically connected with the CPU micro controller. The CPU micro controller is also electrically connected with a digital tube display, a pressing button scanning instrument and a state indication light. The input optoelectronic isolation circuit is electrically connected with the output optoelectronic isolation circuit; the output optoelectronic isolation circuit is electrically connected with an output processing circuit. The communication magnetic isolation circuit is electrically connected with an RS485 communication port. The CPU micro controller is electrically connected with a low voltage protection circuit. The CPU micro controller is electrically connected with a WDT anti-run circuit. The scanning module of the invention is capable of scanning the state of an eight-channel switch with one IO, which reduces the external wiring and saves the installation space.
Description
Technical field
The present invention relates to detection technique field is switched, more particularly to a kind of scan module.
Background technology
Existing on-off state detection module is that I O point one group of switch of correspondence carries out detection state and fed back, such as
When fruit needs to carry out multiple switch state to be detected, it is necessary to which substantial amounts of I O point can cause wiring to work being docked
Amount is big, and the volume of module itself is big, and fault rate is high, multigroup module is also needed to sometimes and is installed simultaneously, the expense that wastes time and energy space.
The content of the invention
The purpose of the present invention is for the deficiencies in the prior art, there is provided a kind of scan module, by 1 IO of module
Put to scan eight way switch states, reduce external cabling, save installing space.
The technical solution adopted in the present invention is：
A kind of scan module, including DC protection circuits, DC-DC isolation circuits, 3.3V mu balanced circuits, CPU microcontrollers and
Input photoelectric isolating circuit, output photoelectric isolation circuit and the communication Magnetic isolation circuit electrically connected with CPU microcontrollers, the DC
Protection circuit, DC-DC isolation circuits and 3.3V mu balanced circuits are linked in sequence and electrically connect with CPU microcontrollers, the CPU micro-controls
Device processed is also electrically connected with numeral method device, key scan instrument and status indicator lamp, the input photoelectric isolating circuit electrical connection
Input processing circuit, the output photoelectric isolation circuit electrically connects output processing circuit, the communication Magnetic isolation circuit electrical connection
RS485 communication interfaces.
Further, the CPU microcontrollers are electrically connected with low voltage protection circuit.
Further, the CPU microcontrollers are electrically connected with the winged circuit of the anti-races of WDT.
Further, the CPU microcontrollers are stm32 microcontrollers.
The invention has the beneficial effects as follows, a kind of scan module disclosed by the invention can scan eight by 1 I O point of module
Way switch state, while reducing external cabling, saves installing space.
The present invention is described in further detail below in conjunction with the accompanying drawings.
Description of the drawings
Fig. 1 is the theory diagram of scan module of the present invention.
Fig. 2 is the circuit theory diagrams of the DC protection circuits of scan module of the present invention.
Fig. 3 is the circuit theory diagrams of the DC-DC isolation circuits of scan module of the present invention and 3.3V mu balanced circuits.
Fig. 4 is the circuit theory diagrams of the input processing circuit of scan module of the present invention.
Fig. 5 is the circuit theory diagrams for being input into PS2805 chips in photoelectric isolating circuit of scan module of the present invention.
Fig. 6 be scan module of the present invention output photoelectric isolation circuit in PS2805 chips circuit theory diagrams.
Fig. 7 is the circuit theory diagrams of the ULN2803 chips of scan module of the present invention.
Fig. 8 is the circuit theory diagrams of the communication Magnetic isolation circuit of scan module of the present invention.
Fig. 9 is the circuit theory diagrams of the CPU microcontrollers of scan module of the present invention.
Specific embodiment
In order to deepen the understanding of the present invention, make further details of theory to the present invention with reference to the accompanying drawings and examples
It is bright.Following examples are only used for clearly illustrating technical scheme, and the guarantor of the present invention can not be limited with this
Shield scope.
As shown in figure 1, scan module of the present invention, including DC protection circuits, DC-DC isolation circuits, 3.3V mu balanced circuits,
CPU microcontrollers and the input photoelectric isolating circuit electrically connected with CPU microcontrollers, output photoelectric isolation circuit and communication magnetic every
From circuit, DC protection circuits, DC-DC isolation circuits and 3.3V mu balanced circuits are linked in sequence and electrically connect with CPU microcontrollers,
CPU microcontrollers are also electrically connected with numeral method device, key scan instrument and status indicator lamp, and input photoelectric isolating circuit is electrically connected
Input processing circuit is connect, output photoelectric isolation circuit electrical connection output processing circuit, communication Magnetic isolation circuit electrical connection RS485 leads to
Communication interface, CPU microcontrollers are electrically connected with low voltage protection circuit, and CPU microcontrollers are electrically connected with anti-races of WDT and fly circuit.
In the present invention, CPU microcontrollers are stm32 microcontrollers, and low voltage protection circuit is tl431 under-voltage protections electricity
Road, the anti-races of WDT flies circuit from MAX813L watchdog circuits.
As shown in Fig. 2 DC protection circuits of the present invention, connect a diode D25 after an electric capacity C40 is in parallel with diode D1,
The output end of the output of diode D25 electric capacity C31 in parallel again, electric capacity C31 connects the input of ACM7060, and ACM7060's is defeated
Go out three shunt capacitance C32, C33, C1 of end electrical connection, the output head grounding of C1, the input of C1 is electrically connected with the pin 1 of LM2576
Connect, the pin 2 of LM2576 electrical connection one diode D2 and inductance L1, diode D2 is in parallel with electric capacity C27, C2, C34 is electrically connected
Connect.
As shown in figure 3, DC-DC isolation circuits of the present invention and 3.3V mu balanced circuits, rectifier pin 1 connects power supply, and pin 2 connects
Ground, pin 3 and pin 4 connect the two ends of electric capacity C7, electricity in parallel with electric capacity C3, C41, C42 after series inductance L2 of electric capacity C7 one end
Connection, the input of pin 3 of a termination AMS1117 of electric capacity C42, the pin 2 of AMS1117 connects electric capacity C8, electric capacity C8 and electric capacity
Series resistance R3 is in parallel with LED light emitting diode D3 again after C4 is in parallel.
As illustrated in figures 4-5, be input into photoelectric isolating circuit adopt PS2805 chips, input processing circuit be two parallel resistances with
One electric capacity Parallel opertation, output end electrically connects the input of PS2805 chips.
In the present invention, output photoelectric isolation circuit adopts PS2805 chips, output processing circuit to adopt ULN2803 chips,
The output end of PS2805 chips electrically connects the input of ULN2803 chips, is exported to PNP type triode by ULN2803 chips.
It is noted that embodiment described above is to the illustrative and not limiting of technical solution of the present invention, affiliated technology neck
The equivalent of domain those of ordinary skill or other modifications made according to prior art, as long as not exceeding the technology of the present invention side
The thinking and scope of case, should be included within interest field of the presently claimed invention.
Claims (4)
1. a kind of scan module, it is characterised in that：It is micro- including DC protection circuits, DC-DC isolation circuits, 3.3V mu balanced circuits, CPU
Controller and the input photoelectric isolating circuit electrically connected with CPU microcontrollers, output photoelectric isolation circuit and communication Magnetic isolation electricity
Road, the DC protection circuits, DC-DC isolation circuits and 3.3V mu balanced circuits are linked in sequence and electrically connect with CPU microcontrollers, institute
State CPU microcontrollers and be also electrically connected with numeral method device, key scan instrument and status indicator lamp, the input Phototube Coupling electricity
Road electrically connects input processing circuit, and the output photoelectric isolation circuit electrically connects output processing circuit, the communication Magnetic isolation electricity
Road electrically connects RS485 communication interfaces.
2. a kind of scan module according to claim 1, it is characterised in that：The CPU microcontrollers are electrically connected with low electricity
Voltage protection circuit.
3. a kind of scan module according to claim 1, it is characterised in that：The CPU microcontrollers are electrically connected with WDT to be prevented
Run and fly circuit.
4. a kind of scan module according to claim 1, it is characterised in that：The CPU microcontrollers are stm32 microcontrollers
Device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154580.3A CN106681239A (en) | 2017-03-15 | 2017-03-15 | Scanning module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710154580.3A CN106681239A (en) | 2017-03-15 | 2017-03-15 | Scanning module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106681239A true CN106681239A (en) | 2017-05-17 |
Family
ID=58826104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710154580.3A Pending CN106681239A (en) | 2017-03-15 | 2017-03-15 | Scanning module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106681239A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721226A (en) * | 2004-07-12 | 2006-01-18 | 天津大学 | Purely electrical automobile host controller based on CAN bus and control method therefor |
| CN2800232Y (en) * | 2005-11-04 | 2006-07-26 | 吉林天工汽车仪表有限公司 | Bus type automobile instrument |
| CN101252322A (en) * | 2007-12-20 | 2008-08-27 | 英飞特电子（杭州）有限公司 | Combined type power adapter |
| CN201616665U (en) * | 2010-03-03 | 2010-10-27 | 重庆升旭科技有限公司 | Relay protection device of microcomputer |
| CN103166297A (en) * | 2013-03-11 | 2013-06-19 | 杭州电子科技大学 | Power-fail protection circuit without backup battery |
| CN103481203A (en) * | 2013-09-10 | 2014-01-01 | 山东开泰工业科技有限公司 | Universal display and touch control integrated controller of throwing peening machine |
| CN203427869U (en) * | 2013-03-07 | 2014-02-12 | 江苏大学 | Auxiliary parking system controller for automobile |
| CN203743568U (en) * | 2014-02-28 | 2014-07-30 | 上海卓思控制技术有限公司 | Laboratory airflow system fume hood polymorphic control circuit |
| CN204701474U (en) * | 2015-03-31 | 2015-10-14 | 深圳市金博伦电子科技有限公司 | A kind of power circuit based on electronlmobil |
| CN105573280A (en) * | 2016-01-29 | 2016-05-11 | 山东美鹰食品设备有限公司 | Adhesive polystyrene granule heat preservation plate automatic production apparatus and method |
| CN206757335U (en) * | 2017-03-15 | 2017-12-15 | 江苏华康能达电气设备有限公司 | A kind of scan module |
-
2017
- 2017-03-15 CN CN201710154580.3A patent/CN106681239A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1721226A (en) * | 2004-07-12 | 2006-01-18 | 天津大学 | Purely electrical automobile host controller based on CAN bus and control method therefor |
| CN2800232Y (en) * | 2005-11-04 | 2006-07-26 | 吉林天工汽车仪表有限公司 | Bus type automobile instrument |
| CN101252322A (en) * | 2007-12-20 | 2008-08-27 | 英飞特电子（杭州）有限公司 | Combined type power adapter |
| CN201616665U (en) * | 2010-03-03 | 2010-10-27 | 重庆升旭科技有限公司 | Relay protection device of microcomputer |
| CN203427869U (en) * | 2013-03-07 | 2014-02-12 | 江苏大学 | Auxiliary parking system controller for automobile |
| CN103166297A (en) * | 2013-03-11 | 2013-06-19 | 杭州电子科技大学 | Power-fail protection circuit without backup battery |
| CN103481203A (en) * | 2013-09-10 | 2014-01-01 | 山东开泰工业科技有限公司 | Universal display and touch control integrated controller of throwing peening machine |
| CN203743568U (en) * | 2014-02-28 | 2014-07-30 | 上海卓思控制技术有限公司 | Laboratory airflow system fume hood polymorphic control circuit |
| CN204701474U (en) * | 2015-03-31 | 2015-10-14 | 深圳市金博伦电子科技有限公司 | A kind of power circuit based on electronlmobil |
| CN105573280A (en) * | 2016-01-29 | 2016-05-11 | 山东美鹰食品设备有限公司 | Adhesive polystyrene granule heat preservation plate automatic production apparatus and method |
| CN206757335U (en) * | 2017-03-15 | 2017-12-15 | 江苏华康能达电气设备有限公司 | A kind of scan module |
Non-Patent Citations (1)
| Title |
|---|
| 张继伟: "基于TC35的智能家居控制系统", 《电子测试》 * |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170517 |