Laser pickoff with printing opacity baffle plateTechnical field
The present invention relates to a kind of laser pickoff, more particularly to a kind of laser pickoff with printing opacity baffle plate.
Background technology
Laser pickoff is that light signal is determined whether according to spot intensity, the hot spot that generating laser is launchedSignal center's point is most strong, more remote from central point, and spot signal is weaker.Among actual, laser pickoff receives light signalWhen, laser transmitting set central point and receiver central point are not on the same line.Although two central points are not on the same line,But receiver receives spot intensity and has reached the condition for inspiring receiver to receive signal, thus can cause certain mistakeDifference.Currently known laser-correlation precision is within 2mm, the reality that this precision is docked in robot with charging platform track levelIt is still not accurate enough in the application of border.
The content of the invention
In order to overcome disadvantages mentioned above, the invention provides a kind of laser pickoff with printing opacity baffle plate.
The technical scheme that is used to achieve the above object of the present invention is：
Laser pickoff with printing opacity baffle plate, it is characterized in that：Increase by one piece before the laser pickoff and carry light penetrating slitThe baffle plate of gap so that the central point signal for the hot spot that generating laser is launched is penetrated can just open in the central point close to receiverSend out receiver and receive signal, so as to improve laser-correlation precision；Height of the present invention available for robot and charging platform trackPrecision level is docked.
The beneficial effects of the invention are as follows the present invention improves laser-correlation precision, available for robot and charging platform railThe high level of accuracy docking in road.
Brief description of the drawings
The present invention is further described with implementation below in conjunction with the accompanying drawings.Fig. 1 is the schematic diagram of the present invention, and Fig. 2 is spot center pointThe schematic diagram that signal is blocked by baffle plate, Fig. 3 is the schematic diagram that spot center point signal passes through baffle plate.
In figure, 1 is laser pickoff, and 2 be baffle plate, and 3 be printing opacity gap, and 4 be generating laser, and 5 be hot spot, and 6 be centerPoint signal.
Embodiment
In figure, the laser pickoff with printing opacity baffle plate, it is characterized in that：Increase by one piece of band before the laser pickoff 1There is the baffle plate 2 in printing opacity gap 3 so that the central point signal 6 for the hot spot 5 that generating laser 4 is launched is penetrated close to receiver 1Receiver 1 could be inspired to receive signal during central point, so as to improve laser level to ejaculation degree；The present invention can be used for robotDocked with the high level of accuracy of charging platform track.
One exemplary is：Distance of the baffle plate 2 away from laser pickoff 1 is 10mm, the high 10mm in printing opacity gap 3, width 1mm；Laser level alignment precision now reaches 1mm, meet robot docked with the 1mm high level of accuracy of charging platform track willAsk.
The above described is only a preferred embodiment of the present invention, not making any formal limitation to the present invention, appointHow without departing from the present invention program content, any simple modification made according to technical spirit of the invention to above example, etc.With change and modification, in the range of still falling within technical solution of the present invention.