CN206209520U

CN206209520U - Smart camera isolates I/O expansion plate

Info

Publication number: CN206209520U
Application number: CN201621016132.4U
Authority: CN
Inventors: 刘发玮
Original assignee: Suzhou Alex Hua Tian Air Navigation Intelligent Equipment Technology Co Ltd
Current assignee: Suzhou Alex Hua Tian Air Navigation Intelligent Equipment Technology Co Ltd
Priority date: 2016-08-31
Filing date: 2016-08-31
Publication date: 2017-05-31
Anticipated expiration: 2026-08-31

Abstract

The utility model is related to vision-based detection and smart camera Interface Expanding application field, more particularly to a kind of smart camera isolation I/O expansion plate.The power supply interface of existing smart camera directly connects external power source; without overvoltage protection and reverse connecting protection, can usually occur in use the problems such as overvoltage, reversal connection, in turn result in camera damage; in port, output end does not do quarantine measures, and directly output there may be the phenomenon that smart camera burns out.The utility model uses IO isolation inputs end, it is ensured that camera subject is not limited level signal compatibility using voltage, while solving the speed and signal isolation of communication；The I/O signal extension of use, solves the camera less problems of IO in itself, while increased input and output IO, can effectively prevent reversal connection, situations such as short-circuit, solves the problems, such as that smart camera wiring misses burning；Zener diode adds resettable fuse structure to solve the Cost Problems of protection circuit.

Description

Smart camera isolates I/O expansion plate

Technical field

The utility model is related to vision-based detection and smart camera Interface Expanding application field, more particularly to a kind of smart camera Isolation I/O expansion plate.

Background technology

Smart camera is a kind of microminiature NI Vision Builder for Automated Inspection of Highgrade integration, and it is by the collection of image, treatment and leads to Telecommunication function is integrated in single camera, usually can be using to smart camera in vision-based detection, and smart camera is the core of detection Part.The power supply interface of existing smart camera directly connects external power source, without overvoltage protection and reverse connecting protection, in use The problems such as overvoltage, reversal connection, can usually occur, camera damage is in turn resulted in, output end does not do quarantine measures in port, directly defeated Go out there may be the phenomenon that smart camera burns out.

Utility model content

In order to solve the above technical problems, the utility model proposes a kind of smart camera isolation I/O expansion plate, effective solution Determine and overvoltage, the problem of reversal connection have occurred during use, improved the compatibility of device level signal, while also reducing making for equipment Use cost.

To achieve the above object, the utility model is using following technical scheme：

A kind of smart camera isolates I/O expansion plate, including the IO output ends that control module and the control module are electrically connected with With IO isolation inputs end, communication module also including camera IO, for receiving level signal, for gathering, processing and MCU is sent The acquisition module of required data signal, the camera IO, acquisition module and communication module are electric with the control module respectively Property connection, the camera IO is provided with least two cameras, and the control module uses microcontroller, is connected with control module The outside at IO isolation inputs end is provided with optocoupler.

Used as preferred technical scheme, the power module is electrically connected with control module and camera IO respectively, power supply mould Block is provided with insulating power supply converting unit.

Used as preferred technical scheme, the acquisition module is provided with AD collecting units, and the AD collecting units use 24 The ADS242 collecting units of position High Precision Low Temperature drift.

As preferred technical scheme, radiating conductive sheet is additionally provided with the acquisition module.

Used as preferred technical scheme, the optocoupler that IO isolation inputs end outside is set uses 6N137 high speed photo coupling devices Part.

As preferred technical scheme, camera triggering interface is provided with the camera.

Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：

The utility model uses IO isolation inputs end, it is ensured that camera subject is not limited level signal compatibility using voltage, together When solve communication speed and signal isolation；The I/O signal extension of use, solves the camera less problems of IO in itself, while increased Input and output IO, can effectively prevent reversal connection, situations such as short-circuit, solve the problems, such as that smart camera wiring misses burning；Two grades of voltage stabilizing Pipe plus resettable fuse structure solve the Cost Problems of protection circuit.

Brief description of the drawings

In order to illustrate more clearly of the technical scheme in the utility model embodiment, below will be to needed for embodiment description The accompanying drawing to be used is briefly described.

Fig. 1 is structural representation of the present utility model.

Fig. 2 is communication module circuitry schematic diagram of the present utility model.

Fig. 3, Fig. 5, Fig. 6 are power module schematic diagram of the present utility model.

Fig. 4 is control module circuit diagram of the present utility model.

Description of reference numerals：1-IO isolation inputs end, 2- camera IO, 3- power module, 4-IO output ends, 5- communication moulds Block, 6- acquisition modules, 7- control modules.

Specific embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is entered Row is clearly and completely described.

Such as Fig. 1, the utility model proposes a kind of smart camera isolation I/O expansion plate, including control module 7, camera IO2, With the control module 7 be electrically connected with IO output ends 4 and IO isolation inputs end 1, the communication module 5 for receiving level signal, The acquisition module 6 of the data signal for gathering, processing and required for sending MCU, camera IO2, acquisition module 6 and communication module 5 are electrically connected with control module 7 respectively, and power module 3 is electrically connected with control module 7 and camera IO2 respectively, power module 3 Insulating power supply converting unit is provided with, input power and camera power supply can be isolated, independently-powered pattern, communication are used when using The port that module 5 is used can be with the level signal of compatible PC.

Compared to the situation of prior art, the smart camera that the utility model is provided isolates I/O expansion plate, and control module 7 is The control module 7 of camera IO2 plates, when signal instruction is received, directly can be processed signal of communication, in the utility model Control module 7 use microcontroller, the outside at the IO isolation inputs end 1 being connected with control module 7 is provided with optocoupler, gives One voltage optocoupler work of optocoupler, can feed back to 7 one trigger signals of control module.

Communication module 5 uses RS232 chip ports, can be with the level signal produced by the COM port of compatible PC, effectively Ensure that and exchange stability with the signal transmission of PC and program information, make it be that host computer will not occur camera when communicating The problem of soft triggering.

Acquisition module 6 is provided with AD collecting units, and AD collecting units use ADS242, is 24 AD of High Precision Low Temperature drift Collecting unit, is input into 0-5V differential signals, by AD cell translations, the numeral required for obtaining control module 7 from acquisition interface Signal；Radiating conductive sheet is additionally provided with acquisition module 6, produced amount of heat is passed to away when acquisition module 6 is worked, and is reached To the function of radiating.

Camera IO2 is provided with least two cameras, and camera triggering interface is provided with each camera, and control module 7 will Camera signal isolation input is exported to connection smart camera port after signal instruction treatment.

During use, acquisition module 6 pre-processes the data signal after collection by AD units, the numeral that treatment is obtained Signal is transported to control module 7, and 7 pairs of data signals for being collected of control module are further processed and analyze, then pass through Between the completion smart camera of communication module 5 and PC after control information treatment, required picture signal is entered according to control information Row collection and treatment.

Wherein, the optocoupler that the outside of IO isolation inputs end 1 is set uses 6N137 high speed photo coupling devices.

Zener diode, resettable fuse are additionally provided with the utility model.The cost that protection circuit can effectively be solved is asked Topic.

Various modifications to embodiment will be apparent for those skilled in the art, determine herein The General Principle of justice can in other embodiments be realized in the case where spirit or scope of the present utility model are not departed from.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims

1. IO output ends that a kind of smart camera isolation I/O expansion plate, including control module and the control module are electrically connected with and IO isolation inputs end, it is characterised in that communication module also including camera IO, for receiving level signal, for gathering, processing And the acquisition module of the data signal required for sending MCU, the camera IO, acquisition module and communication module respectively with the control Molding block is electrically connected with, and the camera IO is provided with least two cameras, and the control module uses microcontroller, with control mould The outside at the connected IO isolation inputs end of block is provided with optocoupler.

2. smart camera according to claim 1 isolation I/O expansion plate, it is characterised in that power module respectively with control mould Block and camera IO are electrically connected with, and power module is provided with insulating power supply converting unit.

3. smart camera according to claim 1 isolates I/O expansion plate, it is characterised in that the acquisition module is provided with AD Collecting unit, the AD collecting units are using 24 ADS242 collecting units of High Precision Low Temperature drift.

4. smart camera according to claim 3 isolates I/O expansion plate, it is characterised in that be additionally provided with the acquisition module Radiating conductive sheet.

5. smart camera according to claim 1 isolates I/O expansion plate, it is characterised in that IO isolation inputs end outside is set Optocoupler use 6N137 high speed photo coupling devices.

6. smart camera according to claim 1 isolates I/O expansion plate, it is characterised in that be provided with camera on the camera Triggering interface.