CN203406947U

CN203406947U - Operation microscope electric control system based on field programmable gate array (FPGA)

Info

Publication number: CN203406947U
Application number: CN201320521912.4U
Authority: CN
Inventors: 陈立晶; 曹守秀
Original assignee: 8358 Research Institute of 3th Academy of CASC
Current assignee: 8358 Research Institute of 3th Academy of CASC
Priority date: 2013-08-23
Filing date: 2013-08-23
Publication date: 2014-01-22
Anticipated expiration: 2023-08-23

Abstract

The utility model relates to an operation microscope electric control system based on an FPGA which is applied to an operation microscope to realize the automatic focusing, the electric zooming, the linkage adjustment of an illumination system, the power supply switching control, the support balance adjustment and the image projection and acquisition during the microscope use process. The operation microscope electric control system based on the FPGA comprises a focusing module, a zooming module, an illumination system adjusting module, a power supply switching module and a support balance control module, realizes an automatic focusing algorithm, a motor control algorithm and a function of carrying out the linkage adjustment on the illumination light intensity and the illumination range according to the change of the working distance and the amplification multiplying power based on a high-performance processing chip FPGA, and can real-timely monitor the running state of an execution motor during the running process to execute the corresponding processing programs timely. The operation microscope electric control system based on the FPGA of the utility model has the characteristics of being agile and changeable in algorithm realization, high in intelligent degree, strong in adaptability and rapid in response speed, etc.

Description

A kind of surgical operation microscope electric-control system based on FPGA

Technical field

The utility model belongs to a kind of surgical medical apparatus, is specifically related to a kind of surgical operation microscope electric-control system based on FPGA.

Background technology

That Minimally Invasive Surgery has is little to patient trauma, reduce between patient's art the multiple advantages such as misery and postoperative rehabilitation time be short, has become the developing direction in each field of surgical medicine.Carrying out of any one Minimally Invasive Surgery all be unable to do without surgical operation microscope, its advanced technology, and application is convenient, and product diversification, specialization, are welcome by surgeon deeply.At present, the long-term dependence on import of surgical operation microscope that China is used, " country's 12 science and technology development plannings " are clearly using medicine equipment and advanced Medical Devices as the object of greatly developing.Therefore the blank that the high-end surgical operation microscope that, exploitation has an independent intellectual property right is filled up domestic technique is very necessary.

Along with the development of electronic information technology and automatic technology, the intellectuality of surgical operation microscope control system is had higher requirement.At present, the report major part of domestic relevant surgical operation microscope technology concentrates on optical system, the mechanical structure aspect to wherein relating to, and what aspect control, relate to is less, has shown to a certain extent necessity of the present invention.

Summary of the invention

The purpose of this utility model is to provide a kind of surgical operation microscope electric-control system based on FPGA, and it can realize self adaptation adjustment, light source switching controls, support balance adjustment and the image projection of the automatic focus in surgical operation microscope use procedure, electronic zoom, illumination intensity and illumination zone and collection control etc.

The utility model is to realize like this, a kind of surgical operation microscope electric-control system based on FPGA, it comprises fpga chip, fpga chip output signal is to mirror image two-dimensional directional displacement control module, fpga chip receives power management module, the input signal of clock module, fpga chip also receives the input signal of display unit simultaneously to display unit output signal, fpga chip is to brightness regulation and range regulation output signal, brightness regulation and range regulation are to luminous source system input signal, fpga chip is to the output signal of balance adjustment circuit input signal receiving balance regulating circuit, balance adjustment circuit is to microscope stand output signal, fpga chip is to focusing and become working distance drive circuit, zoom drive circuit output signal, focusing and change working distance drive circuit are to actuating motor output signal, actuating motor is to 1 pin output signal of transmission mechanism, 1 pin of transmission mechanism is to the object lens output signal of optical system, zoom drive circuit is to actuating motor output signal, actuating motor is to 2 pin output signals of transmission mechanism, 2 pins of transmission mechanism are to the zoom system, pancreatic system output signal of optical system, optical system is also to imageing sensor output signal simultaneously, imageing sensor is to signal condition output signal, signal condition is to fpga chip output signal.

The utility model has the advantages that, the electric control system controls integrated unit of realizing based on high-performance treatments chip FPGA can be implemented flexibly auto-focusing algorithm, balancing algorithm, illumination intensity and illumination zone and change according to working distance and enlargement ratio function and the corresponding Electric Machine Control algorithm that links and adjust.And, in view of the high-speed parallel disposal ability of FPGA, can monitor in real time the running state information in trigger command information and actuating motor operation process and implement effectively to control to respond in time relevant treatment program.The present invention has greatly improved the intelligent degree of surgical operation microscope, has algorithm and realizes the features such as the strong and fast response time of flexible and changeable, adaptivity.

Accompanying drawing explanation

Fig. 1 is that accompanying drawing is the surgical operation microscope electrical control system structure block diagram based on FPGA that the utility model relates to.

Embodiment

Below in conjunction with drawings and Examples, the utility model is described in detail:

Principle of the present utility model is as follows:

Based on High Performance FPGA, realize the integrated control unit of microscope control system, each module of control system is implemented to coordinate to control.While there is external trigger order, according to default priority, carry out logic judgement, carry out corresponding responder.

The integrated control unit of realizing based on FPGA, implements definition evaluation algorithms according to the image information obtaining from imageing sensor, drives the action of focusing stepping motor, changes the position of object lens; Repeatedly carry out this process, until complete focusing.In focus adjustment process, limit switch order has interrupt priority, the infringement causing to prevent from exceeding microscopical working distance scope and motor misoperation.

When needs carry out zoom to microscope photosystem, integrated control unit receives zoom order, and the look-up table based on being prestored in processor is searched the data corresponding with zoom order, drives zoom motor to corresponding position; In like manner, the limit switch of zoom motor has interrupt priority, prevents the infringement that motor misoperation causes.

After surgical operation microscope working distance or enlargement ratio change, the integrated control unit based on fpga chip detects control signal to be changed and makes in time response; The real parallel data processing advantage of FPGA can greatly reduce the power consumption of processor, the response speed of raising system.

Light source breaks down in the time of can not normally providing microscopical illumination, and integrated control unit detects this fault, and startup changeover program carries out the switching of light source to recover normal illumination.

Integrated control unit based on FPGA is implemented closed-loop control to the balance of support, and transducer detects balancing information, based on balancing control algorithm, carries out control action.

Surgical operation microscope in reset mode enters after operating state, starts illuminator work, and manual adjustments illumination zone and brightness as required, makes observed tissue enter working region.

Start surgical procedure, user starts the trigger commands such as focusing, zoom, the control that responds and link with the logical order of being scheduled to of the integrated control unit of microscope.

As shown in Figure 1, it comprises fpga chip a kind of surgical operation microscope electric-control system based on FPGA, fpga chip output signal is to mirror image two-dimensional directional displacement control module, fpga chip receives power management module, the input signal of clock module, fpga chip also receives the input signal of display unit simultaneously to display unit output signal, fpga chip is to brightness regulation and range regulation output signal, brightness regulation and range regulation are to luminous source system input signal, fpga chip is to the output signal of balance adjustment circuit input signal receiving balance regulating circuit, balance adjustment circuit is to microscope stand output signal, fpga chip is to focusing and become working distance drive circuit, zoom drive circuit output signal, focusing and change working distance drive circuit are to actuating motor output signal, actuating motor is to 1 pin output signal of transmission mechanism, 1 pin of transmission mechanism is to the object lens output signal of optical system, zoom drive circuit is to actuating motor output signal, actuating motor is to 2 pin output signals of transmission mechanism, 2 pins of transmission mechanism are to the zoom system, pancreatic system output signal of optical system, optical system is also to imageing sensor output signal simultaneously, imageing sensor is to signal condition output signal, signal condition is to fpga chip output signal.

Claims

1. the surgical operation microscope electric-control system based on FPGA, it is characterized in that: it comprises fpga chip, fpga chip output signal is to mirror image two-dimensional directional displacement control module, fpga chip receives power management module, the input signal of clock module, fpga chip also receives the input signal of display unit simultaneously to display unit output signal, fpga chip is to brightness regulation and range regulation output signal, brightness regulation and range regulation are to luminous source system input signal, fpga chip is to the output signal of balance adjustment circuit input signal receiving balance regulating circuit, balance adjustment circuit is to microscope stand output signal, fpga chip is to focusing and become working distance drive circuit, zoom drive circuit output signal, focusing and change working distance drive circuit are to actuating motor output signal, actuating motor is to 1 pin output signal of transmission mechanism, 1 pin of transmission mechanism is to the object lens output signal of optical system, zoom drive circuit is to actuating motor output signal, actuating motor is to 2 pin output signals of transmission mechanism, 2 pins of transmission mechanism are to the zoom system, pancreatic system output signal of optical system, optical system is also to imageing sensor output signal simultaneously, imageing sensor is to signal condition output signal, signal condition is to fpga chip output signal.