CN1078367C

CN1078367C - Data collecting method and apparatus for electromechanical control equipment

Info

Publication number: CN1078367C
Application number: CN93110555A
Authority: CN
Inventors: 张永信
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-29
Filing date: 1993-01-29
Publication date: 2002-01-23
Anticipated expiration: 2013-01-29
Also published as: CN1090456A

Abstract

The present invention discloses a method of the data collection of an electromechanical control device and a device thereof, which adopts an image sensor to take the image signals of a display instrument, a signal lamp, a manipulator and analogs arranged on the electromechanical control device; the image signals are processed again by an image processor and a microcomputer to obtain the numerical value or the defined value of each collection object; thus, the data collection is realized. The present invention is characterized in that the collection objects are non-electrically connected, the method that software is used for setting parameters is suitable for various types of collection objects, the hardware redundancy of collection devices is convenient because the collection process is a self-check and self-adaptation adjustment process, etc.

Description

A kind of method and device to the electromechanical control equipment data acquisition

The invention belongs to the method and the device of data acquisition, specifically to electric, scheduling and do not contain computer-controlled control desk, represent Displaying Meter cashier's office in a shop, method that the indicated value of signal lamp, executor and analog is gathered and device.

The control instrument that existing medium and small sized enterprises use is many to be the electromechanical structure.As chemical industry department electricity consumption moving cell combination instrument, railway interests's electricity consumption is gas-tight, interlock device, anxious transformation to be updated.But will face fund to its comprehensive renewal and throw the National People's Congress, construction period is long, a series of problems such as qualified person's deficiency, practice show that on the existing equipment basis adopting microcomputer to strengthen its function is effective way, and how microcomputer is a key issue from the existing equipment image data.Existing usual way is by the employing photoelectrical coupler, and level translator, device such as A/D converter are realized, need the construction of wiring at the scene, have nothing in common with each other owing to various device again, and sampling apparatus can not be produced in enormous quantities in general realization.

The objective of the invention is provides a kind of need not that electromechanical control equipment is electrically connected at the problems referred to above, does not influence its operate as normal; Can be common to all kinds equipment; Realization is to the device of method and utilization the method for the data acquisition that its Displaying Meter, signal lamp, executor and analog carry out reliably, low cost also realizes hardware redundancy easily.

The objective of the invention is to realize by following method and apparatus.

A kind of method: adopt fixing image sensor to being fixed on one group of Displaying Meter, signal lamp, executor and analog (to call acquisition target in the following text) on the electromechanical control equipment to the electromechanical control equipment data acquisition, carry out the noncontact shooting, produce picture information; Each acquisition target is made a parameter list of describing each acquisition target and feature and picture information and data or definition value corresponding relation in advance; By acquisition target feature in the parameter list picture information is confirmed; Do not pass through as confirming, adjust or give the signal of makeing mistakes; Affirmation is finished gatherer process one time by then obtain the numerical value or the definition value of each acquisition target according to picture information in the parameter list and numerical value or definition relation content.

By more a plurality of image sensors same acquisition target is gathered institute's value or definition value, cast out, point out abnormal numerical value or definition value, thereby avoid improving the reliability of data acquisition owing to dust, small insect are covered the misdata that image sensor causes.

CCD television image sensor has that volume is little, the life-span long, highly sensitive, geometric distortion is little, series of advantages such as price is low have become the essential device of household video camera, and will descend significantly along with popularizing day by day of video camera is suitable for producing in enormous quantities its price with the CCD image sensor, thereby adopt it to have special meaning as the described image sensor of this method.

Electric, interlock that railway station now uses suddenly wait to use microcomputer that it is transformed raising driving benefit and safety, to the non-method that is electrically connected of its image data palpus employing; On the other hand, the control desk panels feature of this kind equipment is particularly suitable for the processing of picture intelligence.Therefore the inventive method is to solve the microcomputer best approach of kind equipment image data from then on.

Realize the data collector of said method: form by one or several image sensors, presentation manager, microcomputer; Image sensor is with the picture intelligence input imagery processor of the acquisition target taken the photograph, the latter is treated to the picture information of being convenient to the microcomputer processing with the picture intelligence of input, the microcomputer internal memory contains a parameter list of making in advance according to the acquisition target of being taken the photograph, and further processing has just realized the purpose of data acquisition to microcomputer to picture information by the parameter list content.

When several image sensors constitute harvester, these several image sensors can be connected to a signal shifter respectively, be connected to presentation manager by it again, the picture intelligence timesharing input imagery processor that it takes the photograph each image sensor, it also can be connected with microcomputer so that receive microcomputer issues its signal switching command.

Good effect of the present invention: owing to carry out data acquisition with non-electric connecting mode, thereby it is simple and convenient to have installation and maintenance; Disturbing effect not mutually between original equipment and the harvester, no matter whether harvester is working properly, but original equipment operate as normal all helps the grasp of operating personnel to the equipment after renovating.Adopt the software mode of making the different parameters table to replace adopting the specialised hardware circuit mode to realize being adapted to all kinds equipment, and again owing to adopt the general-purpose device of producing in enormous quantities to constitute harvester, software also can be made as the common software bag, thereby can realize data acquisition with very low expense, carried out self-checking and self-adaptation adjustment in each gatherer process, data acquisition has high reliability.Shooting is independent of each other because a plurality of image sensors are to same group of acquisition target, thereby a plurality of image sensors can be set same group of acquisition target carried out data acquisition realize hardware redundancy easily, and can further improve the reliability of data acquisition.

Fig. 1 is a data collector structural representation of the present invention.

Fig. 2 has the structural representation of the data collector of several image sensors formations for the present invention.

The embodiment of the invention 1: be data collector gas-tight to the railway station electricity consumption, interlock device, because electricly close, interlock device do not allow other equipment to be electrically connected with it, otherwise can not satisfy its fail-safe requirement, thereby must adopt non-electric connecting mode that it is carried out data acquisition.Below in conjunction with Fig. 1 this harvester is specified, 1 of image sensor example adopts MTV-3001CCD colour imagery shot, its camera lens in the face of electricly close, the control desk panel of interlock device, this panel is black or mazarine; Be equipped with and show that again the on-site signal machine shows the garden shape signal lamp of situation and the bar shaped light belt of expression line holding situation, its color is that pure color such as red, green, yellow, white is suitable for image processing.The panel image video signal that camera 1 is taken the photograph inputs to presentation manager 2, and it is handled the image video signal of input, produces the image file of expression institute's signal lamp of taking the photograph and light belt picture information, and confession microcomputer 3 is further handled.Microcomputer 3 adopts the Kang Di multimedia microcomputer in this example, and its machine contains presentation manager 2, and the shooting input socket that only needs camera 1 plug to be inserted this microcomputer has promptly constituted this harvester.In microcomputer 3, stored in advance the relation of definition value of the relevant position of each signal lamp of taking the photograph, shape and Show Color correspondence with light belt, (as showing that redness is defined as 1 definition value, the colour developing green is defined as 2 definition value ...) parameter list.Microcomputer 3 is according to each signal lamp in the parameter list like this, each signal lamp of representing in the position of light belt, the image file of shape facility to input, the picture information of light belt are confirmed, confirm whether camera moves, covered, whether indexs such as the brightness of the picture information that image file is represented, contrast, color saturation meet the demands, do not pass through as confirming, can not adjust the problem of solution, (being covered as camera) will be to the signal of makeing mistakes; Can adjust the problem (as brightness, contrast etc.) that solves and then picture intelligence be handled the new image file of generation again by the processing parameter of software adjustment presentation manager 2, this adjustment can be finished through repeatedly adjusting by predefined adjustment strategy, after confirming to pass through, microcomputer 3 will be to each represented in image file signal lamp, the picture information of the shown color of light belt, by in the parameter list their definition value separately being tried to achieve separately definition value, realize data acquisition, these data will be utilized by microcomputer 3 and other automation equipments.

Embodiment 2 is the data collectors that certain production run control desk of 20 moving-coil pointer display instruments are installed to, this type of Displaying Meter is that long strip type, pointer can swing with the size of indication different physical quantities, specify present embodiment below in conjunction with Fig. 2, C in Fig. 2 ₁CN is a N image sensor, and this N object that image sensor is taken the photograph can be same target, also can be different objects.This example has C ₁, C ₂Two image sensors adopt MTV-1101 black in the CCD camera, are installed on control desk the right and left respectively and from the right and left 20 Displaying Meters on its panel are made a video recording, and this mounting means helps improving data acquisition reliability and precision, two camera C ₁, C ₂The signal output plug insert the

shooting input socket

1 and 2 of signal shifter 1 respectively, signal shifter 1 is pressed the instruction of microcomputer 3 with these two camera C ₁, C ₂The picture intelligence timesharing input imagery processor 2 of taking the photograph, the picture intelligence of 2 pairs of inputs of presentation manager is handled the generation image file and is supplied microcomputer 3 to its further processing, microcomputer 3 adopts the AST-386 microcomputer in this example, presentation manager 2 employings are inserted on microcomputer 3 bus expansion slots and are contained in the interior life view video card of its cabinet, also contain a signal shifter 1 that can connect three cameras on this card, so just constituted this routine harvester.In microcomputer 3, stored the content that each the Displaying Meter position on the control panel of taking the photograph, shape, pointer position value corresponding concern in advance.This corresponding relation contain proofread and correct since the diverse location of each Displaying Meter and Displaying Meter pointer and camera apart from the different errors that cause of angle.The course of work of present embodiment for microcomputer 3 command signal switchs 1 at first with camera C ₁Picture intelligence input imagery processor 2, the data acquisition of beginning camera C1, this data acquisition is that the picture intelligence of 2 pairs of inputs of presentation manager is handled generation one image file, and microcomputer 3 is confirmed the picture information of each represented in image file Displaying Meter according to position, the shape facility of each Displaying Meter in the parameter list.To adjust presentation manager 2 to what confirm not pass through, produce new image file, or provide error signal, after confirming to pass through, microcomputer 3 is with the picture information of each Displaying Meter pointer position of representing in the image file, by in the parameter list their pointer position value corresponding separately being concerned the numerical value of trying to achieve separately, finish camera C ₁Data acquisition, then microcomputer 3 sends instruction and gives signal shifter 1 with camera C ₂Picture intelligence input imagery processor 2, beginning camera C ₂Data acquisition, its course of work is with camera C ₁Identical, finish camera C ₂Behind the data acquisition, microcomputer 3 check camera C ₁And C ₂To numerical value that same Displaying Meter collects; when surpassing a specified value as the difference of two numerical value; microcomputer 3 will provide error signal; in order to avoid certain camera is owing to covered the data that cause mistake by dust or small insect; thereby improved the reliability of data acquisition; so just finished a gatherer process of this routine harvester; the microcomputer 3 of this routine device connects the equipment that just can instead manually carry out automatic data logging behind the printer to Displaying Meter; and in the time of catastrophic discontinuityfailure occurring in process of production, guiding operation personnel's handling failure.

Claims

1, a kind of method to the electromechanical control equipment data acquisition, its step, fixing image sensor is to being fixed on one group of Displaying Meter on the electromechanical control equipment, signal lamp, executor, to call acquisition target in the following text, carrying out noncontact videotapes, the picture intelligence that image sensor produced is treated to through presentation manager is convenient to the picture information that microcomputer is handled, it is characterized in that microcomputer makes a parameter list of describing its feature and picture information and numerical value or definition value corresponding relation in advance to each acquisition target, feature by acquisition target in the parameter list is confirmed picture information, do not pass through as confirming, adjust or provide error signal, confirm to pass through then according to picture information in the parameter list and numerical value or definition value corresponding relation, obtain the numerical value or the definition value of each acquisition target, finish gatherer process one time.

2, method according to claim 1, it is characterized in that having greater than N of 1 fixing image sensor fixing same group of acquisition target carried out the noncontact shooting, each image sensor is finished behind separately the gatherer process relatively each acquisition target N numerical value or definition value separately, cast out the numerical value or the definition value that wherein exceed set-point, and provide error signal.

3, a kind of device to the electromechanical control equipment data acquisition, it is characterized in that being made of one or several image sensors, presentation manager, microcomputer, its annexation is that the output terminal map interlinking of the image sensor input end that resembles processor, the output terminal of presentation manager are connected with microcomputer.

4, device according to claim 3, when it is characterized in that having greater than N image sensor of 1, one signal shifter can be arranged, it respectively with N image sensor, presentation manager connects, also can be connected with microcomputer, it can constitute a device separately or be made on the presentation manager as its part.

5, according to claim 3 or 4 described devices, it is characterized in that presentation manager can be installed in the microcomputer case or motherboard on.