CN205566480U

CN205566480U - Image signal system of picking up

Info

Publication number: CN205566480U
Application number: CN201620325584.4U
Authority: CN
Inventors: 陈宏烨; 孙玮琢; 陈江; 戴由旺
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-04-18
Filing date: 2016-04-18
Publication date: 2016-09-07
Anticipated expiration: 2026-04-18

Abstract

The utility model belongs to the technical field of image information processing technique and specifically relates to an image signal system of picking up. Camera lens, CCD image sensor, AD converter, time schedule controller, image processor and extensions group that it is connected including the order still are connected with the CCD driver between time schedule controller and the CCD image sensor, AD converter and CCD driver are controlled by time schedule controller respectively. The utility model discloses not only can pick up (collection) processing system as the image alone uses to provide ultimate image data result, bring in the use before in addition can the intelligence as the vision machine, in order to provide high -resolution image data to the machine, the scalability and the versatility of system have greatly been strengthened, its simple structure, the expansibility is strong, system stability is high, image signal pickup velocity and processing speed are fast, has very strong practical value and market spreading value.

Description

A kind of picture signal picking up system

Technical field

This utility model relates to technical field of image information processing, especially a kind of picture signal picking up system.

Background technology

Visual machine with image pickup as core intelligent robot, device fabrication, resource detection or The fields such as production line detection are with a wide range of applications.At present, in image pickup (collection) system Middle commonly used imageing sensor mainly has COMS and CCD two types, and wherein, COMS image passes Although sensor is low in energy consumption, camera system size is little, but the motility of its picture quality and system is relative to CCD Imageing sensor is on the low side；Therefore, it is necessary to propose a kind of picture signal collection based on ccd image sensor System, to aspects such as image capture device high-resolution, high speed and low-power consumption in applying with satisfied reality Demand.

Utility model content

The deficiency existed for above-mentioned prior art, the purpose of this utility model is to provide a kind of system steady Fixed reliable, extensibility is strong, low in energy consumption, image signal resolution and the pickup of highly sensitive picture signal System.

To achieve these goals, this utility model adopts the following technical scheme that

A kind of picture signal picking up system, camera lens that it includes being linked in sequence, ccd image sensor, A/D Transducer, time schedule controller, image processor and Function Extension group, described time schedule controller is schemed with CCD As being also associated with CCD driver between sensor, described A/D converter and CCD driver are the most controlled In time schedule controller；

Described camera lens is by image objects on ccd image sensor, and light is believed by described ccd image sensor Number be converted to the signal of telecommunication and the Timing driver signal according to the output of CCD driver inputs mould to A/D converter Intending signal, described A/D converter carries out black level clamper to the analogue signal of input, gain is amplified and A/D To time schedule controller output digit signals after conversion process, described time schedule controller is according to the numeral letter of input Number produce synchronizing signal being simultaneously entered synchronizing signal and digital signal to image processor, described image Processor passes through the external output image signal of Function Extension group.

Preferably, described image processor includes an OMAP3530 type processor, described Function Extension group bag Include LCD touch screen and the SD card interface being connected respectively, USB interface, RJ45 network with image processor Interface and wireless module, described LCD touch screen passes through amplifier and the image processor phase of an OPA361 type Even.

Preferably, described time schedule controller includes an XC95108 type programmable logic device.

Preferably, described ccd image sensor is ICX285AL type sensor, described CCD driver bag Include the first driving core of a CXD3400N type for the vertical signal of ccd image sensor is driven Sheet and one is for the second driving core to the EL7155 type that the horizontal signal of ccd image sensor is driven Sheet.

Preferably, described A/D converter includes an AD9945 type video frequency signal processing chip.

Owing to have employed such scheme, this utility model not only can be separately as image pickup (collection) place Reason system uses, to provide final image data processing result, and can be as the intelligence of visual machine Can use front end, to provide high-resolution view data to machine；Significantly enhance system can Autgmentability and versatility；Its simple in construction, autgmentability are strong, system stability is high, picture signal pickup Speed and processing speed are fast, have the strongest practical value and market popularization value.

Accompanying drawing explanation

Fig. 1 is the control system theory diagram of this utility model embodiment；

Fig. 2 is the circuit connection structure figure of the first driving chip of this utility model embodiment；

Fig. 3 is the peripheral circuit structure chart of the second driving chip of this utility model embodiment；

Fig. 4 is the circuit structure sketch of the A/D converter of this utility model embodiment.

Detailed description of the invention

Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but this utility model can Implement with the multitude of different ways being defined by the claims and covering.

As shown in Figures 1 to 4, a kind of picture signal picking up system that the present embodiment provides, it includes suitable The camera lens a of sequence connection, ccd image sensor b, A/D converter c, time schedule controller d, image procossing Device e and Function Extension group, be also associated with CCD between time schedule controller d and ccd image sensor b Driver f, A/D converter c and CCD driver f are controlled by time schedule controller d；So, profit With camera lens a by image objects on ccd image sensor b, ccd image sensor b by optical signal change For the signal of telecommunication and according to CCD driver f output Timing driver signal one by one pixel at a time to A/D converter c Input analogue signal, A/D converter c to input analogue signal carry out black level clamper, gain amplify and To time schedule controller d output digit signals after A/D conversion process, time schedule controller d is further according to the number of input Word signal produce synchronizing signal and by synchronizing signal and digital signal simultaneously (together with) input is to image procossing Processing in device e, image processor e is again by the external output image signal of Function Extension group；Thus Whole system not only can use separately as image pickup (collection) processing system, to provide final figure As data processed result, and can use as the intelligent front end of visual machine, to provide to machine High-resolution view data；Significantly enhance extensibility and the versatility of system.

For improving the performance of whole system (such as the processing speed of picture signal, the resolution of image and be The stability etc. of system) and extend the function of whole system, the image processor e of the present embodiment includes one OMAP3530 type processor；The Function Extension group of the present embodiment include LCD touch screen g and respectively with figure As SD card interface h connected for processor e, USB interface k, RJ45 network interface m and wireless module n (such as bluetooth module or WiFi module etc.), wherein, the amplification by an OPA361 type of LCD touch screen g Device p is connected with image processor e.So, formed through pickup and after processing when picture signal View data can be shown on LCD display g in real time by acting on of amplifier p, and user also may be used Control the collection of picture signal by LCD touch screen, stop, taking pictures etc., and utilize each interface will View data is transferred to memorizer or long-range high in the clouds.

Due to CCD driver' s timing be one group have particular level voltage, periodically, Relationship Comparison multiple Miscellaneous time series pulse signals, for providing stably accurate clock signal, ensures the flexible of system simultaneously Property and reduce system cost, the time schedule controller d of the present embodiment includes that an XC95108 type is able to programme and patrols Collect device.

For changing the amplitude of clock signal, the power of enhancing signal, it is ensured that to ccd image sensor b's Drive effect, the ccd image sensor b preferred ICX285AL type sensor of the present embodiment, and CCD drives Dynamic device f then includes one for the CXD3400N type that is driven the vertical signal of ccd image sensor (its circuit connection structure with sensor refers to Fig. 2 and is configured, to utilize it first driving chip r Vertical clock signal V Φ 1, V Φ 2A, V Φ 2B, V Φ 3, V Φ 4 and shutter control signal to sensor Φ SUB is driven) and one for the EL7155 that the horizontal signal of ccd image sensor b is driven (its peripheral circuit class is configured, to utilize it to sensor second driving chip s of type with reference to Fig. 3 Horizontal clock signal H Φ 1 and H Φ 2 is driven, and also can carry out level conversion simultaneously).

For the signal of ccd image sensor b data can be carried out correlated-double-sampling, black level clamper, Gain amplification and A/D conversion etc. process, to improve the precision of system, it is ensured that the quality of final image, with Time reduce whole system noise, (its peripheral circuit refers to Fig. 4 and enters the A/D converter c of the present embodiment Row is arranged) include an AD9945 type video frequency signal processing chip.

The foregoing is only preferred embodiment of the present utility model, not thereby limit of the present utility model specially Profit scope, every equivalent structure utilizing this utility model description and accompanying drawing content to be made or equivalence flow process Conversion, or directly or indirectly it is used in other relevant technical fields, the most in like manner it is included in this utility model Scope of patent protection in.

Claims

1. a picture signal picking up system, it is characterised in that: it includes camera lens, the CCD being linked in sequence Imageing sensor, A/D converter, time schedule controller, image processor and Function Extension group, described sequential CCD driver, described A/D converter and CCD it is also associated with between controller and ccd image sensor Driver is controlled by time schedule controller；

2. a kind of picture signal picking up system as claimed in claim 1, it is characterised in that: described image Processor includes an OMAP3530 type processor, and described Function Extension group includes LCD touch screen and difference SD card interface, USB interface, RJ45 network interface and the wireless module being connected with image processor, described LCD touch screen is connected with image processor by the amplifier of an OPA361 type.

3. a kind of picture signal picking up system as claimed in claim 2, it is characterised in that: described sequential Controller includes an XC95108 type programmable logic device.

4. a kind of picture signal picking up system as claimed in claim 3, it is characterised in that: described CCD Imageing sensor is ICX285AL type sensor, and described CCD driver includes one for passing ccd image First driving chip of the CXD3400N type that the vertical signal of sensor is driven and one is for ccd image Second driving chip of the EL7155 type that the horizontal signal of sensor is driven.

5. a kind of picture signal picking up system as claimed in claim 4, it is characterised in that: described A/D Transducer includes an AD9945 type video frequency signal processing chip.