CN206818871U

CN206818871U - Laser radar

Info

Publication number: CN206818871U
Application number: CN201720279509.3U
Authority: CN
Inventors: 邱纯鑫; 刘乐天
Original assignee: Suteng Innovation Technology Co Ltd
Current assignee: Suteng Innovation Technology Co Ltd
Priority date: 2017-03-21
Filing date: 2017-03-21
Publication date: 2017-12-29
Anticipated expiration: 2027-03-21

Abstract

A kind of laser radar is disclosed in embodiment of the present utility model, the laser radar includes：First group of laser emission element, for launching first group of shoot laser；First transmitting terminal collimation unit, for collimating first group of shoot laser；Second group of laser emission element, for launching second group of shoot laser；Second transmitting terminal collimation unit, for collimating second group of shoot laser.The utility model embodiment can improve the vertical resolution of laser radar, additionally aid the size for reducing laser radar.

Description

Laser radar

Technical field

Detection field is the utility model is related to, more particularly to a kind of laser radar.

Background technology

Laser radar is to detect the radar system of the characteristic quantities such as the position of target, speed to launch laser beam, its work It is first the signal reflected from target and transmission signal that then will be received to objective emission exploring laser light light beam as principle It is compared, after making proper treatment, so that it may obtain target for information about, such as target range, orientation, height, speed, appearance The parameters such as state, even shape.

Multi-line laser radar is one kind of laser radar, and multi-line laser radar of the prior art is to pass through semiconductor laser Transmitter launches laser, the motor rotation passed through, forms the scanning of a plurality of wire harness, and what echo optical signal was detected sets It is standby.In theory, the laser wire harness of multi-line laser radar transmitting is more, to more comprehensive, but the multi-line laser radar of environment description The height of component is limited in unit height can not accomplish very little, therefore can not infinitely increase the wire harness in unit height, So as to which higher vertical resolution can not be obtained.

It can be seen that vertical resolution during multi-line laser radar scanning of the prior art is not also high.

Utility model content

A kind of laser radar is provided in the utility model embodiment, the vertical resolution of laser radar can be improved.

In order to solve the above-mentioned technical problem, the utility model embodiment discloses following technical scheme：

On the one hand, there is provided a kind of laser radar, the laser radar include：

First group of laser emission element, for launching first group of shoot laser；

First transmitting terminal collimation unit, for collimating first group of shoot laser；

Second group of laser emission element, for launching second group of shoot laser；

Second transmitting terminal collimation unit, for collimating second group of shoot laser.

Optionally, the optical axis of the optical axis and second group of shoot laser of first group of shoot laser interlocks.

Optionally, first group of laser emission element includes multiple Laser emission plates；

Second group of laser emission element includes multiple Laser emission plates.

Optionally, the laser radar also includes：

3rd group of laser emission element, for launching the 3rd group of shoot laser；

3rd transmitting terminal collimation unit, for collimating the 3rd group of shoot laser.

Optionally, the optical axis of the optical axis and first group of shoot laser of the 3rd group of shoot laser interlocks；And

The optical axis of the optical axis and second group of shoot laser of the 3rd group of shoot laser interlocks.

Optionally, the laser radar also includes：

Receiving terminal collimation unit, for collimating the transmitting laser；

Receiving unit, for receiving the reflection laser after the collimation；

Wherein, the reflection laser is laser of the shoot laser after testee reflects.

Optionally, the receiving unit includes multiple laser receiver boards.

Optionally, the quantity of the laser receiver board is equal to the quantity of the Laser emission plate.

Disclose a kind of laser radar in embodiment of the present utility model, laser radar of the present utility model is by transmitter unit It is divided into two groups, two groups of transmitting terminal collimation units of corresponding use, in the case where two groups of laser beam axis interlock, unit can be increased Laser facula quantity in length, equivalent to the laser line number added in unit length, the vertical of laser radar can be improved and divided Resolution；In addition, transmitter unit is divided into two groups, each group of size meeting relative decrease, can arrange in a limited space more Adduction is managed, and helps to reduce the size of laser radar.

Brief description of the drawings

, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description are only of the present utility model Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this A little accompanying drawings obtain other accompanying drawings.

Fig. 1 show the schematic diagram of the utility model embodiment laser radar；

Fig. 2 show two groups of parallel schematic diagrames of laser beam axis；

Fig. 3 show the schematic diagram that two groups of laser beam axis of the utility model embodiment interlock；

Fig. 4 show the schematic diagram of the laser facula of the utility model embodiment；

Fig. 5 show the schematic diagram of the laser radar of the utility model embodiment；

Fig. 6 show the light path schematic diagram of the laser radar of the utility model embodiment；

Fig. 7 show the schematic diagram of the laser facula of the utility model embodiment.

Embodiment

The utility model following examples provide a kind of laser radar, can improve the vertical resolution of laser radar.

Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clear, complete description, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made The every other embodiment obtained, belong to the scope of the utility model protection.

Fig. 1 show the schematic diagram of the laser radar of the utility model embodiment, as shown in figure 1, the laser radar bag Include：

First group of laser emission element 110, for launching first group of shoot laser；

First transmitting terminal collimation unit 120, for collimating first group of shoot laser；

Second group of laser emission element 130, for launching second group of shoot laser；

Second transmitting terminal collimation unit 140, for collimating second group of shoot laser.

In the utility model embodiment, first group of laser emission element 110 includes multiple Laser emission plates；

Second group of laser emission element 130 includes multiple Laser emission plates.

In the utility model embodiment, the optical axis of the optical axis of first group of shoot laser and second group of shoot laser Staggeredly.

In the utility model embodiment, optical axis staggeredly refers to that optical axis is non-parallel.

Fig. 2 show two groups of parallel schematic diagrames of laser beam axis.As shown in Fig. 2 the He of optical axis 210 of first group of shoot laser The optical axis 220 of second group of shoot laser is parallel to each other.

Fig. 3 show the schematic diagram that two groups of laser beam axis of the utility model embodiment interlock, as shown in figure 3, first group The optical axis 320 of the optical axis 310 of shoot laser and second group of shoot laser interlocks.

Fig. 4 show the schematic diagram of the laser facula of the utility model embodiment.

In the utility model embodiment, the optical axis of two groups of laser interlocks, in the light at a certain distance from the laser radar Spot would not overlap.Ideally, the hot spot of any one second group of shoot laser falls in two first group of shoot laser light Between spot.

In embodiment shown in Fig. 4, the hot spot of first group of laser is illustrated with empty circles, and the hot spot of second group of laser is with band The circle signal of oblique line.As shown in figure 4, two groups of laser faculas are misaligned.

It can be seen that compared with single group laser emission element of the prior art and transmitting terminal collimation unit, the utility model Transmitter unit is divided into two groups by the laser radar of embodiment, two groups of transmitting terminal collimation units of corresponding use, in two groups of laser lights In the case of shaft staggered, laser facula quantity in unit length can be increased, equivalent to the laser rays added in unit length Number, the vertical resolution of laser radar can be improved；In addition, transmitter unit is divided into two groups, each group of size can relative contracting It is small, the size for more rationally, contributing to reduce laser radar can be arranged in a limited space.

The laser radar of the utility model embodiment, multigroup laser emission element and transmitting terminal collimation unit is employed, In the case that the optical axis of shoot laser interlocks, the laser line number being distributed in unit length increases, and can improve vertical resolution.

The laser radar of the utility model embodiment can include two groups and laser emission element more than two.

The laser radar of the utility model embodiment also includes：

The optical axis of the optical axis and first group of shoot laser of the 3rd group of shoot laser interlocks；And

Similarly, the laser radar of the utility model embodiment can also include the 4th group of laser emission element and the 4th transmitting Collimation unit is held, its function and above-mentioned laser emission element, transmitting terminal collimation unit are same or similar, will not be repeated here.

Similarly, the optical axis of the optical axis and other group of shoot laser of the 4th group of shoot laser staggers, and will not be repeated here.

The laser radar of the utility model embodiment also includes：

Receiving terminal collimation unit, for collimating the transmitting laser；

Receiving unit, for receiving the reflection laser after the collimation；

The receiving unit includes multiple laser receiver boards.

In other embodiment of the present utility model, receiving terminal collimation unit and receiving unit or can have multigroup.

In the utility model embodiment, the quantity of the laser receiver board is equal to the quantity of the Laser emission plate.

The laser radar of the utility model embodiment can improve the vertical resolution of laser radar.

Fig. 5 show the schematic diagram of the laser radar of the utility model embodiment, and the application scenarios shown in Fig. 5 include four Group laser emission element, there is four groups of transmitting terminal collimation units accordingly.Only include one group of receiving terminal in application scenarios shown in Fig. 5 Collimation unit and one group of receiving unit.

As shown in figure 5, the laser radar includes first group of transmitting terminal collimation lens of laser emission element 511 and first 521, second group of transmitting terminal collimation lens 522 of laser emission element 512 and second, the 3rd group of laser emission element 513 and the 3rd Transmitting terminal collimation lens 523, and the 4th group of transmitting terminal collimation lens 524 of laser emission element 514 and the 4th.

The laser radar also includes receiving terminal collimation lens 530 and receiving unit 540.In Fig. 5, receiving unit 540 has Two row.

Fig. 6 show the light path schematic diagram of the laser radar of the utility model embodiment, the index path corresponding diagram shown in Fig. 6 Application scenarios shown in 5, Fig. 6, with same or analogous function, no longer go to live in the household of one's in-laws on getting married herein with the unit with identical label in Fig. 5 State.

As shown in fig. 6, first group of shoot laser that first group of laser emission element 511 is launched collimates thoroughly through the first transmitting terminal After mirror 521, reflected by testee, reflection laser after receiving terminal collimation lens 530 by receiving unit 540 by being received.

Similarly, after second group of laser, the 3rd group of laser and the 4th group of laser are reflected by testee, reflection laser is by connecing Received after receiving end collimation lens 530 by receiving unit 540.

In Fig. 6, shoot laser is represented with solid line, is represented by dotted lines reflection laser.

Fig. 7 show the schematic diagram of the laser facula of the utility model embodiment.In Fig. 7, the hot spot of first group of laser with White circle is illustrated, and the hot spot of second group of laser is illustrated with the circle with oblique line, and the hot spot of the 3rd group of laser is with latticed circle Circle signal, the 4th group of laser are illustrated with ater circle.

In embodiment shown in Fig. 5 to Fig. 7, ideally, the vertical resolution of laser radar, which can be improved to original, hangs down Four times of straight resolution ratio.

As seen from Figure 7, in vertical direction, the vertical resolution of the laser radar of the utility model embodiment is more It is high.

A kind of laser radar is disclosed in embodiment of the present utility model, transmitter unit is divided into two by the laser radar Group, it is corresponding to use two groups of transmitting terminal collimation units, laser facula quantity in unit length can be increased, equivalent to adding list Laser line number on bit length, the vertical resolution of laser radar can be improved；In addition, transmitter unit is divided into two groups, it is each The size meeting relative decrease of group, can arrange the size for more rationally, contributing to reduce laser radar in a limited space.

Those skilled in the art can be understood that the technology in the utility model embodiment can add by software The mode of required common hardware realizes that common hardware includes universal integrated circuit, universal cpu, general-purpose storage, universal element Device etc., naturally it is also possible to which application specific integrated circuit, dedicated cpu, private memory, special components and parts etc. are included by specialized hardware To realize, but the former is more preferably embodiment in many cases.Based on such understanding, the skill in the utility model embodiment The part that art scheme substantially contributes to prior art in other words can be embodied in the form of software product, the calculating Machine software product can be stored in storage medium, as read-only storage (ROM, Read-Only Memory), arbitrary access are deposited Reservoir (RAM, Random Access Memory), magnetic disc, CD etc., including some instructions are causing a computer equipment (can be personal computer, server, either network equipment etc.) performs each embodiment of the utility model or embodiment Method described in some parts.

Each embodiment in this specification is described by the way of progressive, identical similar portion between each embodiment Divide mutually referring to what each embodiment stressed is the difference with other embodiment.It is real especially for system For applying example, because it is substantially similar to embodiment of the method, so description is fairly simple, related part is referring to embodiment of the method Part explanation.

Above-described the utility model embodiment, does not form the restriction to scope of protection of the utility model.It is any Made within spirit of the present utility model and principle modifications, equivalent substitutions and improvements etc., should be included in the utility model Protection domain within.

Claims

1. a kind of laser radar, it is characterised in that the laser radar includes：

2. laser radar as claimed in claim 1, it is characterised in that the optical axis and described second of first group of shoot laser The optical axis of group shoot laser interlocks.

3. laser radar as claimed in claim 1 or 2, it is characterised in that first group of laser emission element includes multiple Laser emission plate；

Second group of laser emission element includes multiple Laser emission plates.

4. laser radar as claimed in claim 3, it is characterised in that the laser radar also includes：

5. laser radar as claimed in claim 4, it is characterised in that the optical axis and described first of the 3rd group of shoot laser The optical axis of group shoot laser interlocks；And

6. laser radar as claimed in claim 5, it is characterised in that the laser radar also includes：

Receiving terminal collimation unit, for collimating the transmitting laser；

Receiving unit, for receiving the reflection laser after the collimation；

7. laser radar as claimed in claim 6, it is characterised in that the receiving unit includes multiple laser receiver boards.

8. laser radar as claimed in claim 7, it is characterised in that the quantity of the laser receiver board is sent out equal to the laser Penetrate the quantity of plate.