CN206757335U - A kind of scan module - Google Patents
A kind of scan module Download PDFInfo
- Publication number
- CN206757335U CN206757335U CN201720252655.7U CN201720252655U CN206757335U CN 206757335 U CN206757335 U CN 206757335U CN 201720252655 U CN201720252655 U CN 201720252655U CN 206757335 U CN206757335 U CN 206757335U
- Authority
- CN
- China
- Prior art keywords
- circuit
- circuits
- electrically connected
- microcontrollers
- cpu
- 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.)
- Expired - Fee Related
Links
- 238000002955 isolation Methods 0.000 claims abstract description 29
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000005611 electricity Effects 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 238000001514 detection method 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
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Electronic Switches (AREA)
Abstract
The utility model discloses a kind of scan module, including DC protection circuits, DC DC isolation circuits, 3.3V mu balanced circuit, CPU microcontrollers and the input photoelectric isolating circuit electrically connected with CPU microcontrollers, output photoelectric isolation circuit and communication Magnetic isolation circuit, DC protection circuits, DC DC isolation circuits and 3.3V mu balanced circuits are linked in sequence and electrically connected with CPU microcontrollers, CPU microcontrollers are also electrically connected with numeral method device, key scan instrument and status indicator lamp, input photoelectric isolating circuit electrical connection input processing circuit, output photoelectric isolation circuit electrically connects output processing circuit, communicate Magnetic isolation circuit electrical connection RS485 communication interfaces, CPU microcontrollers are electrically connected with low voltage protection circuit.The utility model scan module, eight way switch states can be scanned by 1 I O point of module, while reduce external cabling, save installing space.
Description
Technical field
Switch detection technique field is the utility model is related to, more particularly to a kind of scan module.
Background technology
Existing on-off state detection module is that the corresponding one group of switch of I O point carries out detection state and fed back, such as
Fruit needs to carry out multiple switch state when being detected, it is necessary to which substantial amounts of I O point is docked, and wiring can be caused to work
Amount is big, and the volume of module in itself is big, and fault rate is high, also needs to multigroup module sometimes while installs, space of wasting time and energy.
Utility model content
The purpose of this utility model is to be directed to the deficiencies in the prior art, there is provided a kind of scan module, passes through module 1
Individual I O point scans eight way switch states, reduces external cabling, saves installing space.
Technical scheme is used by the utility model：
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 connected 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 connect 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 beneficial effects of the utility model are a kind of scan modules disclosed in the utility model, by 1 I O point of module just
Eight way switch states can be scanned, while reduce external cabling, save installing space.
The utility model is described in further detail below in conjunction with the accompanying drawings.
Brief description of the drawings
Fig. 1 is the theory diagram of the utility model scan module.
Fig. 2 is the circuit theory diagrams of the DC protection circuits of the utility model scan module.
Fig. 3 is the DC-DC isolation circuits of the utility model scan module and the circuit theory diagrams of 3.3V mu balanced circuits.
Fig. 4 is the circuit theory diagrams of the input processing circuit of the utility model scan module.
Fig. 5 is the circuit theory diagrams for inputting PS2805 chips in photoelectric isolating circuit of the utility model scan module.
Fig. 6 be the utility model scan module output photoelectric isolation circuit in PS2805 chips circuit theory diagrams.
Fig. 7 is the circuit theory diagrams of the ULN2803 chips of the utility model scan module.
Fig. 8 is the circuit theory diagrams of the communication Magnetic isolation circuit of the utility model scan module.
Fig. 9 is the circuit theory diagrams of the CPU microcontrollers of the utility model scan module.
Embodiment
In order to deepen, to understanding of the present utility model, the utility model to be made with reference to the accompanying drawings and examples further detailed
Thin explanation.Following examples are only used for clearly illustrating the technical solution of the utility model, and can not be limited with this
The scope of protection of the utility model.
As shown in figure 1, the utility model scan module, including DC protection circuits, DC-DC isolation circuits, 3.3V voltage stabilizings electricity
Road, CPU microcontrollers and the input photoelectric isolating circuit electrically connected with CPU microcontrollers, output photoelectric isolation circuit and communication
Magnetic isolation circuit, DC protection circuits, DC-DC isolation circuits and 3.3V mu balanced circuits are linked in sequence and are electrically connected with CPU microcontrollers
Connect, CPU microcontrollers are also electrically connected with numeral method device, key scan instrument and status indicator lamp, input photoelectric isolating circuit
Electrically connect input processing circuit, output photoelectric isolation circuit electrical connection output processing circuit, the circuit electrical connection of communication Magnetic isolation
RS485 communication interfaces, CPU microcontrollers are electrically connected with low voltage protection circuit, and CPU microcontrollers are electrically connected with anti-run of WDT and flown
Circuit.
In the utility model, CPU microcontrollers are stm32 microcontrollers, and low voltage protection circuit is protected for tl431 low-voltages
Protection circuit, the anti-races of WDT fly circuit and select MAX813L watchdog circuits.
As shown in Fig. 2 the utility model DC protection circuits, an electric capacity C40 and a diode of being connected after diode D1 parallel connections
D25, diode D25 output again parallel connection one electric capacity C31, electric capacity C31 output end connection ACM7060 input, ACM7060
Output end electrically connect three shunt capacitance C32, C33, C1, C1 output head grounding, C1 input and the LM2576 electricity of pin 1
Connection, LM2576 pin 2 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, the utility model DC-DC isolation circuits and 3.3V mu balanced circuits, rectifier pin 1 connect power supply, drawn
Pin 2 is grounded, and pin 3 and pin 4 connect electric capacity C7 both ends, after the series inductance L2 of electric capacity C7 one end with electric capacity C3, C41, C42 simultaneously
Connection electrical connection, the electric capacity C42 termination AMS1117 input of pin 3, AMS1117 pin 2 meet electric capacity C8, electric capacity C8 with
Series resistance R3 is in parallel with LED light emitting diodes D3 again after electric capacity C4 parallel connections.
As illustrated in figures 4-5, input photoelectric isolating circuit use PS2805 chips, input processing circuit be two parallel resistances and
One electric capacity Parallel opertation, output end electrically connect the input of PS2805 chips.
In the utility model, output photoelectric isolation circuit uses PS2805 chips, and output processing circuit uses ULN2803 cores
Piece, the input of the output end electrical connection ULN2803 chips of PS2805 chips, is exported by ULN2803 chips and gives the pole of positive-negative-positive three
Pipe.
It is noted that embodiment described above is to the illustrative and not limiting of technical solutions of the utility model, affiliated skill
The equivalent substitution of art field those of ordinary skill or other modifications made according to prior art, as long as not new beyond this practicality
The thinking and scope of type technical scheme, it should be included within the interest field required by the utility model.
Claims (4)
- A kind of 1. scan module, it is characterised in that：It is micro- including DC protection circuits, DC-DC isolation circuits, 3.3V mu balanced circuits, CPU The controller and 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 connected 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.
- A kind of 2. scan module according to claim 1, it is characterised in that：The CPU microcontrollers are electrically connected with low electricity Voltage protection circuit.
- A kind of 3. scan module according to claim 1, it is characterised in that：The CPU microcontrollers, which are electrically connected with WDT, to be prevented Run and fly circuit.
- A kind of 4. 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 |
|---|---|---|---|
| CN201720252655.7U CN206757335U (en) | 2017-03-15 | 2017-03-15 | A kind of scan module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720252655.7U CN206757335U (en) | 2017-03-15 | 2017-03-15 | A kind of scan module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206757335U true CN206757335U (en) | 2017-12-15 |
Family
ID=60610047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720252655.7U Expired - Fee Related CN206757335U (en) | 2017-03-15 | 2017-03-15 | A kind of scan module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206757335U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681239A (en) * | 2017-03-15 | 2017-05-17 | 江苏华康能达电气设备有限公司 | Scanning module |
| CN113645113A (en) * | 2021-08-12 | 2021-11-12 | 上海海达通信有限公司 | 3.3V power supply RS485 communication system |
-
2017
- 2017-03-15 CN CN201720252655.7U patent/CN206757335U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681239A (en) * | 2017-03-15 | 2017-05-17 | 江苏华康能达电气设备有限公司 | Scanning module |
| CN113645113A (en) * | 2021-08-12 | 2021-11-12 | 上海海达通信有限公司 | 3.3V power supply RS485 communication system |
| CN113645113B (en) * | 2021-08-12 | 2022-09-20 | 上海海达通信有限公司 | 3.3V power supply RS485 communication system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105491730B (en) | A kind of LED lamp with USB interface string control system | |
| CN203101494U (en) | AC (alternating current) electric supply power failure detection circuit, equipment and system | |
| CN203761280U (en) | Lightning-proof power adapter circuit | |
| CN203596614U (en) | Lightning protection circuit for PSE (Power Source Equipment) multiport equipment | |
| CN206757335U (en) | A kind of scan module | |
| CN104698262A (en) | Zero cross detection circuit and variable frequency air conditioner | |
| CN208477519U (en) | A kind of intelligent terminal test device | |
| CN204556715U (en) | A kind of zero cross detection circuit and convertible frequency air-conditioner | |
| CN102122845B (en) | Network switching distribution automation measurement and control device | |
| CN208848054U (en) | A kind of tester of multichannel QC3.0 fast charge agreement | |
| CN207234751U (en) | A kind of trigger circuit for breaker | |
| CN108566243B (en) | A kind of optical interface 1+1 protection isolated form multi-service Ethernet optical transmitter and receiver based on FPGA | |
| CN207602497U (en) | The power-down protection circuit of electric operating mechanism of circuit-breaker | |
| CN203481901U (en) | Zero-load low-loss battery charging circuit | |
| CN202856709U (en) | Photoelectric triggering device for thyristor valve of high-voltage TSC (thyristor switched capacitor) | |
| CN205407375U (en) | Charger | |
| CN210274115U (en) | External interface circuit for energy router | |
| CN208953928U (en) | A kind of list I/O expansion system | |
| CN106681239A (en) | Scanning module | |
| CN208781044U (en) | Hydraulic support electronic control system signal coupler | |
| CN209198534U (en) | A kind of zero cross detection circuit and device | |
| CN103475074A (en) | No-load low-loss battery charging circuit | |
| CN205176228U (en) | Armature integrated test device based on CAN bus | |
| CN205193241U (en) | Take optoelectronic isolation's armature integrated test device | |
| CN202260526U (en) | Power system circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 |