CN205809301U - A kind of scan-type electro-optic radar - Google Patents

A kind of scan-type electro-optic radar Download PDF

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Publication number
CN205809301U
CN205809301U CN201620722581.4U CN201620722581U CN205809301U CN 205809301 U CN205809301 U CN 205809301U CN 201620722581 U CN201620722581 U CN 201620722581U CN 205809301 U CN205809301 U CN 205809301U
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CN
China
Prior art keywords
scan
optical pickup
intermittent motion
type electro
optic radar
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201620722581.4U
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Chinese (zh)
Inventor
车国锋
王贤会
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Beijing North Hunt Sky Technology Co Ltd
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Beijing North Hunt Sky Technology Co Ltd
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Priority to CN201620722581.4U priority Critical patent/CN205809301U/en
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Expired - Fee Related legal-status Critical Current
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Abstract

The utility model discloses a kind of scan-type electro-optic radar, including driving means, intermittent motion mechanism, optical pickup, Elevation Console and control device;Driving means is for driving the drive shaft turns of described intermittent motion mechanism;The driven shaft of intermittent motion mechanism is connected with the switching part of optical pickup;Optical pickup is driven by switching part and does intermittent rotation;Control device and carry out the collection of spatial information for starting optical pickup when driven shaft remains static;Elevation Console is for controlling the elevation angle of optical pickup.Scan-type electro-optic radar in this utility model, can be optical pickup time of integration of being provided with enough durations, so using ordinary optical harvester can collect the image with practical value;It is to say, the optical pickup of scan-type electro-optic radar the linear array detector of non-refrigeration type in this utility model embodiment, but cheap ordinary optical harvester, so the holistic cost of scan-type electro-optic radar the most just can be effectively reduced.

Description

A kind of scan-type electro-optic radar
Technical field
This utility model relates to space exploration field, particularly relates to a kind of scan-type electro-optic radar.
Background technology
Electro-optic radar can be generally used for the scenes such as the tracking of fixed point monitoring and dynamic object;When electro-optic radar is applied to sky When the scanning in territory monitors, need the acquisition by completing image the shorter time of integration, preferable detection performance could be obtained.
In prior art, scan-type electro-optic radar typically can use linear array detector, obtains preferable detection performance;Line Though the integration time period that array detector is on fixed position, its device need use refrigeration mode it just can be made to obtain figure Picture there is relatively high s/n ratio, i.e. when only using the linear array detector of refrigeration mode to be applied in scan-type electro-optic radar, ability Obtain image with practical value.
From the foregoing, it will be observed that scan-type electro-optic radar of the prior art is higher due to the price of its linear array detector, so its Holistic cost is higher.
Utility model content
Technical problem to be solved in the utility model is how to reduce the cost of scan-type electro-optic radar, concrete:
This utility model embodiment provides a kind of scan-type electro-optic radar, including driving means, intermittent motion mechanism, light Learn harvester, Elevation Console and control device;
Described driving means is for driving the drive shaft turns of described intermittent motion mechanism;Described intermittent motion mechanism from Moving axis is connected with the switching part of described optical pickup;Described optical pickup is driven by described switching part and does intermittent turning Dynamic;
Described control device carries out sky for starting described optical pickup when described driven shaft remains static Between the collection of information;
Described Elevation Console is for controlling the luffing angle of described optical pickup.
Preferably, in this utility model embodiment, the rotating speed of described driving means is adjustable.
Preferably, in this utility model embodiment, turning to of described driving means is adjustable.
Preferably, in this utility model embodiment, described intermittent motion mechanism includes:
Geneva mechanism, cam intermittent motion mechanism or incomplete mechanism gear mechanism.
Preferably, in this utility model embodiment, described cam intermittent motion mechanism includes:
Cylindrical cam intermittent motion mechanism, or, worm cam intermittent motion mechanism.
Preferably, in this utility model embodiment, when the interval of the driven pulley of described cam intermittent motion mechanism is static Length obtains 5 width image required times not less than described optical pickup.
Preferably, in this utility model embodiment, when the interval of the driven pulley of described cam intermittent motion mechanism is static A length of 100ms.
Preferably, in this utility model embodiment, the indexed cam quantity of described cam intermittent motion mechanism is 20.
Preferably, in this utility model embodiment, between described driven shaft and described switching part, also include travelling gear; Described travelling gear is for regulating the torque of described switching part.
In this utility model embodiment, by being provided with intermittent motion mechanism, between driving optical pickup to carry out Having a rest property rotates;Thus can make optical pickup rotate during, one section of static duration of the acquisition of intermittent, i.e. Optical pickup often rotates after a default angle with regard to a static preset duration, is then rotated further by an angle, then The most static preset duration, by that analogy, realizes the optical pickup scanning to spatial domain;Additionally, this utility model is real Execute in example, be additionally provided with control device, by controlling the startup opportunity of optical pickup, make optical pickup static The collection of spatial information is carried out during state.
Due to the scan-type electro-optic radar in this utility model embodiment, it can be the optical pickup in scanning process It is provided with the time of integration of enough durations, so using ordinary optical harvester can collect the image with practical value; It is to say, the optical pickup of scan-type electro-optic radar the linear array of non-refrigeration type detect in this utility model embodiment Device, but cheap ordinary optical harvester, so the most just can effectively reduce the entirety of scan-type electro-optic radar Cost.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work, Other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of scan-type electro-optic radar described herein;
Fig. 2 is the structural representation of cylindrical cam intermittent motion mechanism described herein;
Fig. 3 is the plane configuration structural representation of cam path described herein exhibition.
Detailed description of the invention
In order to make those skilled in the art be more fully understood that this utility model scheme, real below in conjunction with this utility model Execute the accompanying drawing in example, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described Embodiment is only a part of embodiment of this utility model rather than whole embodiments.Based on the embodiment in this utility model, The every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly falls into this reality By novel protected scope.
In order to reduce the cost of scan-type electro-optic radar, this utility model embodiment provides a kind of scan-type photoelectricity thunder Reach, as it is shown in figure 1, include driving means 01, intermittent motion mechanism 02, optical pickup 03, Elevation Console 04 and control Device (not shown);
Driving means 01 is for driving the drive shaft 21 of intermittent motion mechanism 02 to rotate;Driven of intermittent motion mechanism 02 22 are connected with the switching part 31 of optical pickup 03;Optical pickup 03 is driven by switching part 31 and does intermittent rotation;Face upward Angle control station 04 is for controlling the luffing angle of optical pickup 03;Control device to be used for remaining static when driven 22 Shi Qidong optical pickup 03 carries out the collection of spatial information.
In this utility model embodiment, driving means 01 can be the conventional power sources such as motor as power source.
As a example by driving means 01 is motor, by the rotation of motor shaft, between intermittent motion mechanism 02 can be driven to carry out The rotation of having a rest property;Concrete, motor can drive drive shaft by being connected with the drive shaft 21 driving intermittent motion mechanism 02 21 rotate.
Its concrete structure of intermittent motion mechanism 02 in this utility model embodiment can include multiple, typically wraps Include Geneva mechanism, cam intermittent motion mechanism or incomplete mechanism gear mechanism etc., as long as include drivewheel and driven pulley, and energy Drive driven pulley to do intermittence to rotate.
Intermittent rotation described in this utility model embodiment, during its running status can be specifically rotation, One section of static duration of the acquisition of intermittent, i.e. often with regard to a static preset duration after one default angle of rotation, turn the most again A dynamic angle, the most static preset duration, cyclicity run action by that analogy.
Preferably, in order to obtain more preferable stability, optical pickup 03 is made to avoid bigger shake in scanning process Dynamic, the intermittent motion mechanism 02 in this utility model embodiment can be cam intermittent motion mechanism, cam intermittent motion mechanism Typical structure include cylindrical cam intermittent motion mechanism and worm cam intermittent motion mechanism etc..
Intermittent motion mechanism 02 in Fig. 2 is cylindrical cam intermittent motion mechanism, its concrete structure and operation logic For:
Cylindrical cam intermittent motion mechanism includes driving shaft 21, drivewheel 23, driven Luntai 22 and driven shaft 24;Actively The outer wall of wheel 23 is provided with cam path, and driven Luntai 22 is provided with multiple indexed cam;Indexed cam is adaptive with cam path;Cam path exhibition As it is shown on figure 3, wherein, the part that in figure, turn in upper and lower two ends is for driving section, the middle straight line in figure for form after opening as plane Part be static segment;In the rotation process of drivewheel 21, indexed cam first can be along the entrance being positioned at cam path driving section In entrance cam path, then, the cam path in rotation can be by driving section by indexed cam switch, when indexed cam turns to convex During the static segment of race, although drivewheel is also rotating, but owing to the cam path of static segment is straight line, so indexed cam meeting Keep the resting state of a period of time, i.e. indexed cam can static a period of time after rotating an angle;Until under cam path One drives the current location that section turns to cam rotation, and indexed cam just can carry out rotation next time;Cam path often rotates One week, can be by the entrance of next indexed cam switch to the driving section of cam path, such that it is able to continue to stir next indexing Cam enters in cam path.Thus can be under the driving of the lasting rotation of drivewheel 21, driven Luntai 22 and driven shaft 24 Do intermittent rotation.
Additionally, by Elevation Console 04, the luffing angle of optical pickup can be regulated, such that it is able to make scan-type Electro-optic radar can scan more spatial domain scope, improves the suitability of scan-type electro-optic radar.
Owing to driven shaft does intermittent rotation, so the optical pickup connected with driven shaft just can be with corresponding The intermittent mode rotated is scanned, in actual applications, when being the startup being controlled optical pickup by device processed Machine;So, the collection of spatial information is carried out with regard to starting optical pickup whenever entrance driven shaft enters resting state;Whenever When driven shaft rotates, it is shut off optical pickup.Owing to resting state can be that optical pickup provides enough integrations Time, so using ordinary optical harvester can collect the image with practical value;It is to say, this utility model The optical pickup of scan-type electro-optic radar the linear array detector of non-refrigeration type in embodiment, but cheap common Optical pickup, so the most just can effectively reduce the holistic cost of scan-type electro-optic radar.
In actual applications, the driving means 01 in this utility model embodiment specifically can also is that adjustable speed and scalable The driving means turned to.
Buncher can be passed through specifically, regulate the rotating speed of drivewheel, such that it is able to regulate sweeping of electro-optic radar Retouch the cycle.Turn to further, it is also possible to motor is set to scalable, by controlling optical pickup 03 at certain angular range Interior reciprocating rotation, such that it is able to set the sweep limits of electro-optic radar.
During the target detection of optical tracking system, generally, detection target is from detecting that confirmation at least needs Want 5 two field pictures, it is preferred, therefore, that in this utility model embodiment, cam intermittent motion mechanism can be designed as, and it is driven The static duration of interval of wheel obtains 5 width image required times not less than optical pickup.In this manner it is possible to well ensure figure The definition of picture and, for the demand of amount of images during detection.
Owing to generally, the operating frequency of non-brake method optical pickup is 50Hz, therefore, real at this utility model Executing in example, the static duration of interval of the driven pulley of cam intermittent motion mechanism can be designed as 100ms, thus meets detection process In for the demand of amount of images.
The quality of effect of scan-type detection, is also embodied in the collection density of image acquisition for surface sweeping spatial domain, at this In utility model embodiment, by the indexed cam quantity of cam intermittent motion mechanism is set to 20, thus avoid photoelectricity Radar is drain message when Scanning Detction.
With the operating frequency of non-brake method optical pickup as 50Hz, the interval of driven pulley static time a length of 100ms, indexing As a example by cam quantity is set to 20;Driven pulley often rotates and is once maintained for static 100ms, in this section quiescent time, and non-system Cold optical pickup just can gather 5 pictures, and then, driven pulley is rotated further next time, so after 20 times rotate, Non-brake method optical pickup rotates one week (360 degree), 4s when sharing;That is, the scan period of scan-type electro-optic radar is 4 seconds, Within every 4 seconds, complete one 360 degree scannings.
Preferably, in this utility model embodiment, between driven shaft and switching part, also include travelling gear;Travelling gear Torque for adjusting switchover portion.By being provided with travelling gear, can be with the torque in adjusting switchover portion, i.e. can be with adjusting switchover portion The rotation amplitude every time rotated, owing to the rotational angle of a scan period is fixing (360 degree), so passing through adjusting switchover The rotation amplitude that portion rotates every time, thus the most just can regulate the length of the scan period of scan-type electro-optic radar.
In this utility model embodiment, it is preferred that control device and can also include sensor, so, pass through sensor Gather the running position of parts in intermittent motion mechanism, or, the running position gathering optical pickup determines driven shaft Whether remain static, such that it is able to generate corresponding control instruction, optical pickup is controlled accordingly.
Above scan-type electro-optic radar provided by the utility model is described in detail.Used herein specifically Principle of the present utility model and embodiment are set forth by individual example, and the explanation of above example is only intended to help to understand this The method of utility model and core concept thereof.It should be pointed out that, for those skilled in the art, without departing from On the premise of this utility model principle, it is also possible to this utility model is carried out some improvement and modification, these improve and modify also Fall in this utility model scope of the claims.

Claims (9)

1. a scan-type electro-optic radar, it is characterised in that include driving means, intermittent motion mechanism, optical pickup, face upward Angle control station and control device;
Described driving means is for driving the drive shaft turns of described intermittent motion mechanism;The driven shaft of described intermittent motion mechanism It is connected with the switching part of described optical pickup;Described optical pickup is driven by described switching part and does intermittent rotation;
Described control device carries out space letter for starting described optical pickup when described driven shaft remains static The collection of breath;
Described Elevation Console is for controlling the luffing angle of described optical pickup.
Scan-type electro-optic radar the most according to claim 1, it is characterised in that the rotating speed of described driving means is adjustable.
Scan-type electro-optic radar the most according to claim 1, it is characterised in that turning to of described driving means is adjustable.
4. according to scan-type electro-optic radar described in Claims 2 or 3, it is characterised in that described intermittent motion mechanism includes:
Geneva mechanism, cam intermittent motion mechanism or incomplete mechanism gear mechanism.
Scan-type electro-optic radar the most according to claim 4, it is characterised in that described cam intermittent motion mechanism includes:
Cylindrical cam intermittent motion mechanism, or, worm cam intermittent motion mechanism.
Scan-type electro-optic radar the most according to claim 5, it is characterised in that the driven pulley of described cam intermittent motion mechanism The static duration of interval obtain 5 width image required times not less than described optical pickup.
Scan-type electro-optic radar the most according to claim 6, it is characterised in that the driven pulley of described cam intermittent motion mechanism Interval static time a length of 100ms.
Scan-type electro-optic radar the most according to claim 7, it is characterised in that the indexing of described cam intermittent motion mechanism is convex Wheel quantity is 20.
Scan-type electro-optic radar the most according to claim 8, it is characterised in that
Travelling gear is also included between described driven shaft and described switching part;Described travelling gear is for regulating described switching part Torque.
CN201620722581.4U 2016-07-11 2016-07-11 A kind of scan-type electro-optic radar Expired - Fee Related CN205809301U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620722581.4U CN205809301U (en) 2016-07-11 2016-07-11 A kind of scan-type electro-optic radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620722581.4U CN205809301U (en) 2016-07-11 2016-07-11 A kind of scan-type electro-optic radar

Publications (1)

Publication Number Publication Date
CN205809301U true CN205809301U (en) 2016-12-14

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Country Status (1)

Country Link
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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20161214

Termination date: 20170711