CN201444661U - CMOS camera switching device - Google Patents

Abstract

The utility model provides a MOS camera switching device, which belongs to a circuit switching device and structurally comprises a CPU and a CMOS camera. The device is characterized in that a FPGA chip is connected between the CPU and the CMOS camera. Compared with the prior art, the utility model has reasonable design, and improves the utilization rate of the CPU, as well as the quality of video signals.

Description

CMOS camera switching device

Technical field

The utility model relates to a kind of circuit switch device, a kind of specifically CMOS camera switching device.

Background technology

Because the CMOS utilizing camera interface is more unified, and that CPU extends out interface is also more unified.But owing to the reason of two aspects makes CPU directly not to be connected with the CMOS camera: at first because they are on sequential and do not match, if want to utilize CPU directly CMOS camera data to be gathered, just must allow CPU produce and satisfy the signal that CMOS camera sequential requires fully, the utilance of meeting serious waste CPU causes CPU can't carry out other work like this; Secondly because the data volume of CMOS camera collection is very huge, before storing or transmit, vision signal generally vision signal can be compressed, so that save memory space or reduce the transmission time, so the data volume of video also restricts the performance of CPU.

Summary of the invention

Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of CMOS camera switching device that improves cpu busy percentage and video quality is provided.

The technical solution of the utility model realizes in the following manner, this CMOS camera switching device, comprise CPU, CMOS camera, be connected with fpga chip (abbreviation of Field-Programmable Gate Array, i.e. field programmable gate array) between CMOS camera and the CPU.

The beneficial effect that the utility model is compared with prior art produced is:

This CMOS camera switching device is provided with FPGA between camera and CPU, produced to satisfy the sequence number that CMOS camera sequential requires fully, has reduced the utilance of CPU; And before vision signal is stored or transmitted, carry out precommpression, make the quality of cpu busy percentage and vision signal be greatly improved like this.

Description of drawings

Accompanying drawing 1 is a structured flowchart of the present utility model.

Mark in the accompanying drawing is represented respectively:

1, CPU, 2, fpga chip, 3, the CMOS camera, 4, data-signal, 5, read-write, 6, control signal.

Embodiment

Below in conjunction with accompanying drawing CMOS camera switching device of the present utility model is done following detailed description the in detail.

As shown in Figure 1, this CMOS camera switching device comprises CPU1, CMOS camera 3, is connected with fpga chip 2 (abbreviation of Field-Programmable Gate Array, i.e. field programmable gate array) between CMOS camera 3 and the CPU1.Fpga chip 2 is as transfer platform, the read-write 5 of CPU1 generation or data-signal 4 are through fpga chips 2 on the one hand, producing the control signal 6 or the data-signal 4 that satisfy the requirement of CMOS camera 3 sequential fully comes camera signals is gathered, and the video data that collects is become the data-signal 4 that CPU1 can receive, fpga chip 2 carries out precommpression with the video data signal 4 of big data quantity on the other hand, then it is transmitted and show, will make the utilance of CPU1 and the quality of vision signal be greatly improved like this.

Claims (1)

1.CMOS the camera switching device comprises CPU, CMOS camera, it is characterized in that being connected with fpga chip between CPU and the CMOS camera.

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