Parameter adjustment method and system for laser transceiver module

Abstract

The present application discloses a parameter adjustment method and system for a laser transceiver module, wherein the method comprises: fixing an auxiliary fixing member of the laser transceiver module to be adjusted on a fixing member, and fixing a signal receiving member of the laser transceiver module on a position adjustment member, wherein a first lens module and a light source member of the laser transceiver module are spaced apart and fixed in a light emitting channel of the auxiliary fixing member, a second lens module of the laser transceiver module is fixed in a light receiving channel, and the light emitting channel and the light receiving channel are spaced apart and penetrated in the auxiliary fixing member; controlling the light source member to transmit a laser detection signal to a detection object through the first lens module; obtaining a reflected light signal of the laser detection signal reflected by the detection object to adjust the relative position of the signal receiving member and the second lens module until the reflected light signal meets the preset requirements; fixing the signal receiving member to the auxiliary fixing member.

Description

Technical Field

[0001] The present application relates to the field of laser technology, and in particular to a parameter adjustment method and system for a laser transceiver module. Background Art

[0002] At present, people often use laser signals to detect target objects. Its working principle is to transmit a detection laser signal to the target object, then receive the reflected signal, and analyze the reflected signal to obtain relevant information about the target object. The laser signal transmission and reception process depends on the precise coordination of various components in the laser transceiver module.

[0003] In radar detection equipment, the laser transceiver module is a vital component. Whether the signal receiving device in the laser transceiver module can accurately receive the light signal emitted by the light source component reflected by the object is crucial to the detection accuracy of the radar.

[0004] Therefore, how to achieve precise parameter adjustment of the laser transceiver module in the lidar is a hot topic being studied by technicians in this field. Summary of the invention

[0005] Based on this, an embodiment of the present application provides a method and system for adjusting parameters of a laser transceiver module, aiming to achieve precise parameter adjustment of the laser transceiver module.

[0006] In a first aspect, an embodiment of the present application provides a parameter adjustment method for a laser transceiver module, comprising:

[0007] A position adjustment device is provided, the position adjustment device comprising a fixing component and a position adjustment component slidably connected to the fixing component;

[0008] The auxiliary fixing member of the laser transceiver module to be adjusted is fixed to the fixing assembly, and the signal receiving assembly of the laser transceiver module is fixed to the position adjustment assembly, wherein the first lens module and the light source assembly of the laser transceiver module are arranged at intervals and fixed in the light emitting channel of the auxiliary fixing member, the second lens module of the laser transceiver module is fixed in the light receiving channel, and the light emitting channel and the light receiving channel are arranged at intervals and penetrated in the auxiliary fixing member;

[0009] Controlling the light source assembly to emit a laser detection signal to the detection object through the first lens module;

[0010] Acquire a reflected light signal of the laser detection signal reflected by the detection object, and control the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements;

[0011] When the reflected light signal meets the preset requirements, the signal receiving component is fixed to the auxiliary fixing piece.

[0012] In a second aspect, an embodiment of the present application provides a parameter adjustment system for a laser transceiver module, the parameter adjustment system comprising a control device, a position adjustment device communicatively connected to the control device, a signal acquisition component, and a positioning component;

[0013] The position adjustment device includes a fixing component and a position adjustment component, the fixing component is used to fix the auxiliary fixing component of the laser transceiver module to be adjusted, and the position adjustment component is used to fix the signal receiving component of the laser transceiver module, wherein the first lens module and the light source component of the laser transceiver module are arranged at intervals and fixed in the light emitting channel of the auxiliary fixing component, the second lens module of the laser transceiver module is fixed in the light receiving channel, and the light emitting channel and the light receiving channel are arranged at intervals and penetrated in the auxiliary fixing component;

[0014] A control device, used to receive a control instruction and control the light source assembly to transmit a laser detection signal to the detection object through the first lens module according to the control instruction, and to control the signal acquisition assembly to obtain a reflected light signal of the laser detection signal reflected by the detection object, and to control the position adjustment device to adjust the relative position of the signal receiving assembly and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements;

[0015] When the reflected light signal meets the preset requirements, the control device controls the positioning component to fix the signal receiving component to the auxiliary fixing member.

[0016] The present application provides a parameter adjustment method and system for a laser transceiver module, wherein the parameter adjustment method comprises: providing a position adjustment device, the position adjustment device comprising a fixing component and a position adjustment component slidably connected to the fixing component; fixing an auxiliary fixing member of the laser transceiver module to be adjusted on the fixing component, and fixing a signal receiving component of the laser transceiver module on the position adjustment component, wherein a first lens module and a light source module of the laser transceiver module are arranged at intervals and fixed in a light emitting channel of the auxiliary fixing member, a second lens module of the laser transceiver module is fixed in a light receiving channel, and the light emitting channel and the light receiving channel are arranged at intervals and penetrated by the auxiliary fixing member; controlling the light source module to transmit a laser detection signal to a detection object through the first lens module; obtaining a reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements; when the reflected light signal meets the preset requirements, fixing the signal receiving component to the auxiliary fixing member. By fixing the auxiliary fixing part of the laser transceiver module to be adjusted to the fixing component, and fixing the signal receiving component of the laser transceiver module to the position adjustment component, then obtaining the reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal, so that the signal accuracy of the reflected light signal received by the signal receiving component meets the preset requirements, thereby realizing precise parameter adjustment of the laser transceiver module.

[0017] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 It is a structural schematic diagram of a laser transceiver module provided in an embodiment of the present application;

[0020] Figure 2 It is a block diagram of a parameter adjustment system for a laser transceiver module provided in an embodiment of the present application;

[0021] Figure 3 yes Figure 2 A schematic diagram of the structure of the position adjustment device of the central parameter adjustment system;

[0022] Figure 4It is a flowchart of the steps of a parameter adjustment method of a laser transceiver module provided in an embodiment of the present application;

[0023] Figure 5A It is a structural schematic diagram of a light source component of a laser transceiver module being arranged on a first lens module;

[0024] Figure 5B It is a schematic diagram of the optical path of the laser detection signal after the light source assembly of the laser transceiver module passes through the first lens module when the distance between the light source assembly of the laser transceiver module and the first lens module is a preset distance;

[0025] Figure 6 It is a schematic diagram of the structure of the signal receiving component of the laser transceiver module receiving the reflected signal of the detection object;

[0026] FIG. 7A to FIG. 7B It is a schematic diagram of a light spot curve generated when the light spot of the reflected signal of the detection object received by the signal receiving component does not fall completely into the detection area;

[0027] Figure 7C It is a schematic diagram of the light spot curve generated when all the light spots of the reflected signal of the detection object received by the signal receiving component fall into the detection area;

[0028] Fig.7D It is a schematic diagram of the light spot curve generated when the light spots of the reflected signal received by the signal receiving component of the detection object all fall into the detection area and the light spot intensity meets the preset conditions;

[0029] Figure 8 It is a schematic diagram of the structure after the relative positions between the signal receiving components of the laser transceiver module are determined;

[0030] Fig. 9A is a schematic diagram of a light spot of a laser detection signal after the light source assembly of the laser transceiver module passes through the first lens module when the distance between the light source assembly of the laser transceiver module and the first lens module is a non-preset distance;

[0031] Fig. 9B It is a schematic diagram of the light spot of the laser detection signal after the light source assembly of the laser transceiver module passes through the first lens module when the distance between the light source assembly of the laser transceiver module and the first lens module is a preset distance. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0033] It should be noted that the descriptions involving "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0034] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0035] In conjunction with the accompanying drawings, some embodiments of the present application are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0036] At present, people often use laser signals to detect target objects. Its working principle is to transmit a detection laser signal to the target object, then receive the reflected signal, and analyze the reflected signal to obtain relevant information about the target object. The laser signal transmission and reception process depends on the precise coordination of various components in the laser transceiver module.

[0037] In radar detection equipment, the laser transceiver module is a vital component. Whether the signal receiving device in the laser transceiver module can accurately receive the light signal emitted by the light source component reflected by the object is crucial to the detection accuracy of the radar.

[0038] Therefore, how to achieve precise parameter adjustment of the laser transceiver module in the lidar is a hot topic being studied by technicians in this field.

[0039] To solve the above problems, the present application provides a parameter adjustment method and system for a laser transceiver module, wherein the parameter adjustment method includes: providing a position adjustment device, the position adjustment device including a fixing component and a position adjustment component slidably connected to the fixing component; fixing the auxiliary fixing member of the laser transceiver module to be adjusted to the fixing component, and fixing the signal receiving component of the laser transceiver module to the position adjustment component, wherein the first lens module and the light source module of the laser transceiver module are arranged at intervals and fixed in a light emitting channel of the auxiliary fixing member, the second lens module of the laser transceiver module is fixed in a light receiving channel, and the light emitting channel and the light receiving channel are arranged at intervals and penetrate the auxiliary fixing member; controlling the light source module to transmit a laser detection signal to the detection object through the first lens module; obtaining a reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements; when the reflected light signal meets the preset requirements, fixing the signal receiving component to the auxiliary fixing member. By fixing the auxiliary fixing part of the laser transceiver module to be adjusted to the fixing component, and fixing the signal receiving component of the laser transceiver module to the position adjustment component, then obtaining the reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal, so that the signal accuracy of the reflected light signal received by the signal receiving component meets the preset requirements, thereby realizing precise parameter adjustment of the laser transceiver module.

[0040] See also Figure 1 The laser transceiver module 10 includes an auxiliary fixing member 102, a signal transmitting device 103, and a signal receiving device 104, wherein the auxiliary fixing member 102 is provided with a light transmitting channel 1021 and a light receiving channel 1022 at intervals, the signal transmitting device 103 is provided in the light transmitting channel 1021, and the signal transmitting device 103 includes a light source assembly 1031 and a first lens module 1032. The signal receiving device 104 includes a signal receiving assembly and a second lens module 1042, wherein the signal receiving assembly includes a circuit board 1041 and a photoelectric sensor 1043 electrically connected to the circuit board 1041, and the photoelectric sensor 1043 is provided between the second lens module 1042 and the circuit board 1041.

[0041] The extension direction A of the light emitting channel 1021 may be perpendicular to the surface of the auxiliary fixing member 102, or may be at a non-90° angle to the surface of the auxiliary fixing member 102. After the first lens module 1032 is installed in the light emitting channel 1021, the optical axis L1 of the first lens module 1032 and the extension direction A of the light emitting channel 1021 may be parallel to each other, or may be at a preset angle.

[0042] The extension direction B of the light receiving channel 1022 is perpendicular to the surface of the auxiliary fixing member 102. After the second lens module 1042 is installed in the light receiving channel 1022, the optical axis L2 of the second lens module 1042 and the extension direction B of the light receiving channel 1022 can be parallel to each other or form a preset angle.

[0043] See also Figure 2 , Figure 2 A parameter adjustment system for a laser transceiver module provided in an embodiment of the present application.

[0044] like Figure 2 As shown, the parameter adjustment system 100 of the laser transceiver module includes a control device 20, a position adjustment device 30 communicatively connected to the control device 20, a signal acquisition component 40 and a positioning component 50.

[0045] See also Figure 3 In some embodiments, the position adjustment device 30 includes a fixing component 301 and a position adjustment component 303 slidably connected to the fixing component 301. The fixing component 301 is used to fix the auxiliary fixing member 102 of the laser transceiver module 10 to be adjusted, and the position adjustment component 303 is used to fix the signal receiving component of the laser transceiver module 10, wherein the first lens module 1032 and the light source component 1031 of the laser transceiver module 10 are arranged at intervals and fixed in the light emitting channel 1021 of the auxiliary fixing member 102, and the second lens module 1042 of the laser transceiver module 10 is fixed in the light receiving channel 1022, and the light emitting channel 1021 and the light receiving channel 1022 are arranged at intervals and penetrate the auxiliary fixing member 102.

[0046] The control device 20 is used to receive control instructions and control the light source component 1031 to emit a laser detection signal to the detection object through the first lens module 1032 according to the control instructions, and is used to control the signal acquisition component 40 to obtain a reflected light signal of the laser detection signal reflected by the detection object, and is used to control the position adjustment device 30 to adjust the relative position of the signal receiving component and the second lens module 1042 according to the reflected light signal until the reflected light signal meets the preset requirements.

[0047] When the reflected light signal meets the preset requirement, the control device 20 controls the positioning assembly 50 to fix the signal receiving assembly to the auxiliary fixing member 102 .

[0048] Figure 4 A flowchart of the steps of a parameter adjustment method for a laser transceiver module provided in an embodiment of the present application.

[0049] like Figure 4 As shown, a parameter adjustment method for a laser transceiver module includes steps S1 to S5.

[0050] Step S1: providing a position adjustment device, wherein the position adjustment device comprises a fixing component and a position adjustment component slidably connected to the fixing component.

[0051] The fixing assembly 301 is used to fix the first workpiece to be position-adjusted, for example, the auxiliary fixing member 102 of the laser transceiver module 10 .

[0052] The position adjustment component 303 is used to fix the second workpiece adapted to the first workpiece, for example, the signal receiving component of the laser transceiver module 10 .

[0053] Step S2: fix the auxiliary fixing part of the laser transceiver module to be adjusted to the fixing component, and fix the signal receiving component of the laser transceiver module to the position adjustment component, wherein the first lens module and the light source component of the laser transceiver module are spaced apart and fixed in the light emitting channel of the auxiliary fixing part, the second lens module of the laser transceiver module is fixed in the light receiving channel, and the light emitting channel and the light receiving channel are spaced apart and penetrated through the auxiliary fixing part.

[0054] See also Figure 5A The second lens module 1042 of the laser transceiver module 10 is fixed in the light receiving channel 1022, and the light emitting channel 1021 and the light receiving channel 1022 are spaced apart and penetrated in the auxiliary fixing member 102. The light source assembly 1031 and the first lens module 1032 are spaced apart and fixed in the light emitting channel 1021 of the auxiliary fixing member 101, and the positional relationship between the light source assembly 1031 and the first lens module 1032 has been calibrated so that the laser detection signal emitted by the light source assembly 1031 through the first lens module 1032 meets the preset requirements.

[0055] like Figure 5B As shown, when the distance between the light source assembly 1031 and the first lens module 1032 is a preset distance D, the laser detection signal emitted by the light source assembly 1031 through the first lens module 1032 meets the preset requirements.

[0056] Step S3: controlling the light source assembly to emit a laser detection signal to the detection object through the first lens module.

[0057] When the positional relationship between the light source assembly 1031 and the first lens module 1032 has been adjusted, it is necessary to adjust the positional relationship between the signal receiving assembly and the second lens module 1042 to ensure that the signal receiving assembly can accurately receive the reflected signal of the detected object and realize accurate ranging of the laser radar.

[0058] like Figure 6As shown, in order to adjust the positional relationship between the signal receiving component and the second lens module 1042, a detection object M is set in the optical path direction of the light source component 1031, and the control device 20 controls the light source component 1031 to emit a laser detection signal to the detection object M through the first lens module 1032, so that the laser detection signal is reflected by the detection object M.

[0059] Step S4: Obtain the reflected light signal of the laser detection signal reflected by the detection object, and control the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal, until the reflected light signal meets the preset requirements. The reflected light signal of the laser detection signal of the light source component reflected by the detection object M is obtained by the signal receiving component, and the signal receiving component converts the reflected signal into a corresponding electrical signal and outputs it to the control device, so that the control device controls the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the electrical signal, until the reflected light signal received by the signal receiving component meets the preset requirements.

[0060] In some embodiments, the step of acquiring a reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets a preset requirement, comprises:

[0061] Collecting a reflected light signal of the laser detection signal reflected by the detection object;

[0062] Determining whether a second light spot corresponding to the reflected light signal falls within a preset receiving area of ​​the signal receiving component;

[0063] When the second light spot is not in the preset receiving area of ​​the signal receiving component, the relative position of the signal receiving component and the second lens module is adjusted in the extension direction perpendicular to the light receiving channel by the position adjustment device until the second light spot falls in the preset receiving area of ​​the signal receiving component.

[0064] Exemplarily, the position adjustment component 303 is used to clamp the second workpiece and can drive the second workpiece to move in three-dimensional space to adjust the positional relationship between the second workpiece and the first workpiece fixed to the fixing component 301 .

[0065] like Figure 3As shown, specifically, the position adjustment component 303 includes a first position adjustment component 3031, a second position adjustment component 3032, a third position adjustment component 3033, and a clamping component 3034. The clamping component 3034 is used for the circuit board 1041 of the signal receiving component, the first position adjustment component 3031 is used to adjust the relative position of the clamping component 3034 and the fixing component 301 in the first direction, the second position adjustment component 3032 is used to adjust the relative position of the clamping component 3034 and the fixing component 301 in the second direction, and the third position adjustment component 3033 is used to adjust the relative position of the clamping component 3034 and the fixing component 301 in the third direction. The first direction and the second direction are perpendicular to each other, and the third direction is perpendicular to the first direction and the second direction, so that the relative position relationship between the clamping component 3034 and the fixing component 301 in the three-dimensional space can be realized by using the first position adjustment component 3031, the second position adjustment component 3032, and the third position adjustment component 3033, so as to adjust the relative position relationship between the first workpiece and the second workpiece in the three-dimensional space. The first direction and the second direction are extension directions of the vertical light receiving channel, and the third direction is the extension direction of the light receiving channel.

[0066] In the embodiment of the present application, the first workpiece is taken as the auxiliary fixing member 102 of the laser transceiver module, and the second workpiece is taken as the signal receiving component of the laser transceiver module for description.

[0067] In the embodiment of the present application, the first adjustment component 3031 is connected to the clamping component 3034 through the second adjustment component 3032 and the third adjustment component 3033, and the first adjustment component 3031 is slidably connected to the fixing component 301301 in the first direction. The second adjustment component 3032 is connected to the clamping component 3034 through the third adjustment component 3033, and the second adjustment component 3032 is slidably connected to the first adjustment component 3031 in the second direction. The third adjustment component 3033 is connected to the clamping component 3034 and is slidably connected to the second adjustment component 3032 in the third direction.

[0068] The signal receiving component is fixed to the position adjustment device 30, and the reflected light signal of the laser detection signal reflected by the detection object is collected by the signal receiving component, and the reflected light signal is converted into a corresponding electrical signal. The electrical signal parameters of the electrical signal are used to determine whether the second light spot corresponding to the reflected light signal falls within the preset receiving area of ​​the signal receiving component. When the second light spot is not within the preset receiving area of ​​the signal receiving component, the relative position of the signal receiving component and the second lens module is adjusted by the position adjustment device 30 until the second light spot falls within the preset receiving area of ​​the signal receiving component.

[0069] In some embodiments, determining whether the second light spot corresponding to the reflected light signal falls within a preset receiving area of ​​the signal receiving component includes:

[0070] Acquire an electrical signal output by the signal receiving component, wherein the electrical signal is generated when at least a portion of the second light spot falls on the signal receiving component;

[0071] Generate a spot curve diagram according to the electrical signal, and determine whether curve parameters of the spot curve in the spot curve diagram meet preset requirements, wherein the curve parameters at least include a spot curve shape;

[0072] When the curve parameter meets the preset requirement, determining that the second light spot falls within a preset receiving area of ​​the signal receiving component;

[0073] When the curve parameter does not meet the preset requirement, it is determined that the second light spot does not fall within a preset receiving area of ​​the signal receiving component.

[0074] Exemplarily, an electrical signal output by a signal receiving component after converting a reflected light signal is acquired, and a spot curve graph is generated based on the electrical signal. The horizontal axis of the spot curve graph represents the spot diameter of the second light spot corresponding to the reflected light signal falling into the detection area of ​​the signal receiving component, in units of pixels, and the vertical axis of the spot curve graph represents the intensity of the spot signal.

[0075] like Fig. 7A and Figure 7B As shown in the figure, when the second light spot falls into the detection range of the photoelectric sensor 1043 in the signal receiving component, there are fewer pixels in the light spot curve graph, and the light spot energy sensed by the photoelectric sensor 1043 is lower. When the area of ​​the second light spot falling into the detection area of ​​the photoelectric sensor 1043 increases, the light spot energy sensed by the photoelectric sensor 1043 gradually increases, and the number of pixels in the light spot curve graph gradually increases.

[0076] like Figure 7C As shown, the second light spot corresponding to the reflected light signal completely falls into the detection range of the photoelectric sensor 1043 in the signal receiving component, and the light spot energy corresponding to the second light spot corresponding to the reflected light signal partially falls into the detection range of the photoelectric sensor 1043 in the signal receiving component has a large difference.

[0077] For example, when half of the area of ​​the second light spot falls into the detection range of the photoelectric sensor 1043 in the signal receiving component, it indicates that the diameter of the second light spot falling into the detection range of the photoelectric sensor 1043 has reached the maximum value, and the pixel points of the light spot curve will not increase. However, in the process of the second light spot falling into the detection range of the photoelectric sensor 1043, the light spot energy will gradually increase.

[0078] Therefore, by judging the changes in the pixel points of the horizontal axis of the light spot curve and the light spot energy in the light spot curve diagram, it can be judged whether the second light spot completely falls into the detection range of the photoelectric sensor 1043 in the signal receiving component, that is, it can be judged whether the second light spot completely falls into the preset receiving area of ​​the photoelectric sensor 1043 in the signal receiving component.

[0079] Based on the fact that the shape of the light spot curve diagram formed by whether the second light spot completely falls into the preset receiving area of ​​the photoelectric sensor 1043 in the signal receiving component is different, by analyzing whether the curve parameters of the light spot curve in the light spot curve diagram meet the preset requirements, it can be determined whether the second light spot falls into the preset receiving area of ​​the signal receiving component.

[0080] When the second light spot falls on the preset receiving area of ​​the signal receiving component, it is determined that the reflected light signal meets the second preset requirement.

[0081] In some embodiments, after the second light spot falls on a preset receiving area of ​​the signal receiving component, the method further includes:

[0082] The relative distance between the light source assembly and the first lens module is adjusted in the extension direction of the light receiving channel until the light spot intensity of the second light spot meets a preset value.

[0083] Wherein, adjusting the relative distance between the light source assembly and the first lens module in the extension direction of the light receiving channel until the light spot intensity of the second light spot meets a preset value includes:

[0084] The position of the signal receiving component relative to the second lens module is adjusted by the position adjustment device in the extension direction of the light receiving channel, so that the similarity between the shape of the light spot curve and the preset shape exceeds a preset value;

[0085] When the similarity between the shape of the light spot curve and the preset shape exceeds a preset value, it is determined that the light spot intensity of the second light spot meets the preset value.

[0086] When the second light spot falls on the preset receiving area of ​​the signal receiving component, if the diameter of the second light spot is too large, it will affect the ranging accuracy of the laser radar after the signal receiving component is applied to the laser radar. Therefore, in order to improve the ranging accuracy of the laser transceiver module, the present application also adjusts the diameter of the second light spot.

[0087] like Fig.7DAs shown, when the second light spot completely falls into the preset receiving area of ​​the signal receiving component, that is, completely falls into the detection range of the photoelectric sensor 1043, the relative position of the signal receiving component and the second lens module 1032 is continued to be adjusted in the extension direction of the light receiving channel 1021 through the position adjustment device 30, so that the area of ​​the second light spot is reduced and the light spot energy per unit area is increased, so that the intensity of the light spot signal reaches the preset value, that is, the light spot intensity of the light spot curve meets the preset requirements. At this time, the shape of the light spot curve corresponding to the second light spot meets the preset shape, that is, it is judged that the reflected light signal meets the second preset requirement.

[0088] For example, when the position adjustment device 30 adjusts the relative distance between the signal receiving component and the second lens module 1042 in the extension direction of the light receiving channel 1022, if the energy value of the ordinate in the light spot curve diagram at time t0-t1 is gradually increasing, and the energy value of the ordinate in the light spot curve diagram at time t2 is gradually decreasing, it indicates that the position corresponding to time t1 is the second light spot position where the energy value corresponds to the preset value, that is, the shape of the light spot curve corresponding to the second light spot meets the preset shape.

[0089] By adjusting the relative distance between the signal receiving component and the second lens module 1042, the light spot of the reflected light signal received by the signal receiving component meets the preset requirements, thereby ensuring the ranging effect of the laser radar made of the laser transceiver module.

[0090] Step S5: When the reflected light signal meets the second preset requirement, fixing the signal receiving component to the auxiliary fixing member.

[0091] See also Figure 8 The photoelectric sensor 1043 of the signal receiving component is fixed to the circuit board 1041. When the signal receiving component is fixed to the auxiliary fixing member 102, it is only necessary to fix the circuit board 1041 to the auxiliary fixing member 102. The circuit board 1041 can be fixed to the auxiliary fixing member 102 by glue, or by fixing members such as screws, or by using glue and fixing members at the same time, which is not limited here.

[0092] In some embodiments, fixing the signal receiving component to the auxiliary fixing member includes:

[0093] When the second light spot falls on the preset receiving area of ​​the signal receiving component, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing member to fix the signal receiving component to the auxiliary fixing member.

[0094] Exemplarily, when the second light spot falls on the preset receiving area of ​​the signal receiving component, the control device 20 controls the positioning component 50 to add fixing glue to the connection area between the signal receiving component and the auxiliary fixing member 102, so that the signal receiving component is fixed to the auxiliary fixing member 102. For example, the positioning component is provided with a glue discharge head, a glue discharge drive unit and a glue material storage unit, and the glue discharge drive unit is used to drive the glue in the glue material storage unit to the glue discharge head, so as to provide the glue to the target position through the glue discharge head.

[0095] In some embodiments, fixing the signal receiving component to the auxiliary fixing member includes:

[0096] When the second light spot falls on the preset receiving area of ​​the signal receiving component, the signal receiving component and the auxiliary fixing component are connected by a preset fixing component so that the signal receiving component is fixed to the auxiliary fixing component.

[0097] Exemplarily, both the signal receiving component and the auxiliary fixing member 102 are provided with fixing holes. When the second light spot falls on the preset receiving area of ​​the signal receiving component, the positioning component 50 is controlled to grab the fixing member, and the signal receiving component and the auxiliary fixing member 102 are connected through the fixing hole by using the preset fixing member, so that the signal receiving component is fixed to the auxiliary fixing member 102, wherein the fixing member includes but is not limited to a fixing screw.

[0098] In some embodiments, fixing the signal receiving component to the auxiliary fixing member includes:

[0099] When the second light spot falls on the preset receiving area of ​​the signal receiving component, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing part, and the signal receiving component and the auxiliary fixing part are connected using a preset fixing part so that the signal receiving component is fixed to the auxiliary fixing part.

[0100] In some embodiments, fixing the signal receiving component to the auxiliary fixing member includes:

[0101] When the light spot intensity of the second light spot meets the preset value, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing member to fix the signal receiving component to the auxiliary fixing member.

[0102] In some embodiments, fixing the signal receiving component to the auxiliary fixing member includes:

[0103] When the spot intensity of the second light spot meets the preset value, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing member, and the signal receiving component and the auxiliary fixing member are connected using a preset fixing member so that the signal receiving component is fixed to the auxiliary fixing member.

[0104] In some embodiments, fixing the signal receiving component to the auxiliary fixing member includes:

[0105] When the light spot intensity of the second light spot meets the preset value, the signal receiving component and the auxiliary fixing component are connected by using a preset fixing component, so that the signal receiving component is fixed to the auxiliary fixing component.

[0106] In some embodiments, before fixing the auxiliary fixing member of the laser transceiver module to be adjusted to the fixing component of the position adjustment device, the method further includes:

[0107] The light source assembly is installed in the light emission channel of the auxiliary fixing member, and the position of the light source assembly relative to the first lens module is adjusted so that the laser detection signal emitted by the light source assembly after passing through the first lens module meets the first preset requirement.

[0108] Exemplarily, when the positional relationship between the light source assembly 1031 and the first lens module 1032 has not been calibrated, before adjusting the positional relationship between the signal receiving assembly and the second lens module 1042, it is necessary to install the light source assembly 1031 in the light emitting channel 1021 accordingly, and adjust the relative position of the light source assembly 1031 and the first lens module 1032 so that the light signal emitted through the first lens module 1032 meets the preset conditions, and when the light signal emitted through the first lens module 1032 meets the preset conditions, the light source assembly 1031 is fixed to the auxiliary fixing member 102 to fix the light source assembly 031 relative to the first lens module 1032.

[0109] In some embodiments, the light source assembly is installed in the light emission channel of the auxiliary fixing member, and the position of the light source assembly relative to the first lens module is adjusted so that the laser detection signal emitted by the light source assembly after passing through the first lens module meets the first preset requirement, including:

[0110] Arrange the light source assembly corresponding to the light emission channel, and control the light source assembly installed in the light emission channel of the auxiliary fixing member to emit a light signal;

[0111] Collecting a first spot image of the laser detection signal emitted by the light source component after passing through the first lens module through a signal collection component, wherein the signal collection component is arranged on the light output path of the light source component;

[0112] Determining whether the first light spot corresponding to the first light spot image is within a preset focusing range;

[0113] When the first light spot is not within the preset focusing range, the relative positions of the light source assembly and the first lens module are adjusted until the first light spot is within the preset focusing range.

[0114] See also FIG. 9A to FIG. 9B Exemplarily, the light source component 1031 is set corresponding to the light emission channel 1021, and the signal acquisition component 40 is set on the optical path of the laser detection signal emitted by the light source component 1031 after passing through the first lens module 1032, so as to collect the first light spot curve image of the laser detection signal, and judge whether the laser detection signal is within the preset focusing range through the first light spot image, and then judge whether the relative position between the light source component 1031 and the first lens module 1032 meets the preset requirements, wherein the signal acquisition component 40 includes a signal acquisition board, an image collector and an image analysis device.

[0115] It can be understood that the image analysis device can be integrated into the control device 20, or be independent of the control device 20. The image analysis device is used to send the image analysis result to the control device, which is not limited here.

[0116] For example, in laser radar ranging, it is required that the divergence angle of the laser detection signal emitted by the light source component 1031 through the first lens module 1032 is within a preset angle range, that is, the light spot of the laser detection signal is within a preset focusing range, thereby ensuring the accuracy of laser ranging, wherein the divergence angle of the laser detection signal can be achieved by adjusting the distance between the light source component 1031 and the first lens module 1032, by setting a signal acquisition component on the optical path of the laser detection signal emitted by the light source component 1031 after passing through the first lens module 1032, setting the light source component 1031 corresponding to the light emission channel 1021, and supplying power to the light source component 1031, the light source component 1031 passes through the first lens module 1032 The emitted laser detection signal is irradiated onto the signal acquisition board of the signal acquisition component, so that the first light spot corresponding to the laser detection signal can be projected on the signal acquisition board, and the first light spot image of the laser detection signal on the signal acquisition board is acquired by the image collector, and the first light spot image is sent to the image analysis device to analyze the size of the first light spot. There is a preset functional relationship between the size of the first light spot and the divergence angle of the laser detection signal. By analyzing the size of the light spot on the signal acquisition board, it can be determined whether the divergence angle of the laser detection signal meets the preset requirements, that is, whether the light spot of the laser detection signal is within the preset focusing range, that is, whether the spacing between the light source component 1031 and the first lens module 1032 meets the preset requirements.

[0117] like Fig. 9A and Fig. 9B As shown, when the first light spot is not within the preset focusing range, the diameter of the first light spot collected by the signal acquisition component 40 is R1. At this time, the relative positions of the light source component 1031 and the first lens module 1021 are adjusted in the extension direction perpendicular to the light emission channel, that is, the relative distance between the light source component 1031 and the first lens module 1021, until the first light spot is within the preset focusing range, that is, the diameter of the first light spot collected by the signal acquisition component 40 is R2. When the first light spot is within the preset focusing range, it indicates that the divergence angle of the laser detection signal meets the preset requirements, and the light source component 1031 is fixed to the auxiliary fixing member 102.

[0118] For example, when the distance between the light source assembly 1031 and the first lens module 1032 is a preset distance D, the spot diameter corresponding to the first spot of the laser detection signal meets the preset value, that is, the divergence angle of the laser detection signal meets the preset angle value, such as Figure 5B shown.

[0119] It should also be understood that the term “and / or” used in the specification and appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0120] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A parameter adjustment method for a laser transceiver module, characterized in that: include: A position adjustment device is provided, the position adjustment device comprising a fixing component and a position adjustment component slidably connected to the fixing component; Fix the auxiliary fixing part of the laser transceiver module to be adjusted to the fixing component, and fix the signal receiving component of the laser transceiver module to the position adjustment component, wherein the first lens module and the light source component of the laser transceiver module are arranged at intervals and fixed in the light emitting channel of the auxiliary fixing part, the second lens module of the laser transceiver module is fixed in the light receiving channel of the auxiliary fixing part, and the light emitting channel and the light receiving channel are arranged at intervals and penetrate the auxiliary fixing part; Controlling the light source assembly to emit a laser detection signal to the detection object through the first lens module; Acquire a reflected light signal of the laser detection signal reflected by the detection object, and control the position adjustment device to adjust the relative position of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements; When the reflected light signal meets the preset requirement, fixing the signal receiving component to the auxiliary fixing member; The step of acquiring the reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative positions of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements, includes: acquiring the reflected light signal of the laser detection signal reflected by the detection object; judging whether the second light spot corresponding to the reflected light signal falls within the preset receiving area of ​​the signal receiving component; when the second light spot is not within the preset receiving area of ​​the signal receiving component, adjusting the relative positions of the signal receiving component and the second lens module in a direction perpendicular to the extension direction of the light receiving channel by the position adjustment device until the second light spot falls within the preset receiving area of ​​the signal receiving component; Wherein, the determining whether the second light spot corresponding to the reflected light signal falls within a preset receiving area of ​​the signal receiving component includes: Acquire an electrical signal output by the signal receiving component, the electrical signal being generated when the second light spot at least partially falls on the signal receiving component; generate a light spot curve graph according to the electrical signal, and determine whether curve parameters of the light spot curve in the light spot curve graph meet preset requirements, the curve parameters at least including the shape of the light spot curve; when the curve parameters meet the preset requirements, determine that the second light spot falls on a preset receiving area of ​​the signal receiving component; when the curve parameters do not meet the preset requirements, determine that the second light spot does not fall on the preset receiving area of ​​the signal receiving component.

2. The method according to claim 1, characterized in that After the step of the second light spot falling on the preset receiving area of ​​the signal receiving component, the method includes: The relative distance between the light source assembly and the first lens module is adjusted in the extension direction of the light receiving channel until the light spot intensity of the second light spot meets a preset value.

3. The method according to claim 2, characterized in that The step of adjusting the relative distance between the light source assembly and the first lens module in the extension direction of the light receiving channel until the light spot intensity of the second light spot meets a preset value includes: The position of the signal receiving component relative to the second lens module is adjusted by the position adjustment device in the extension direction of the light receiving channel, so that the similarity between the shape of the light spot curve and the preset shape exceeds a preset value; When the similarity between the shape of the light spot curve and the preset shape exceeds a preset value, it is determined that the light spot intensity of the second light spot meets the preset value.

4. The method according to claim 1, characterized in that The step of fixing the signal receiving component to the auxiliary fixing member comprises: When the second light spot falls on the preset receiving area of ​​the signal receiving component, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing member to fix the signal receiving component to the auxiliary fixing member.

5. The method according to claim 1, characterized in that The step of fixing the signal receiving component to the auxiliary fixing member comprises: When the second light spot falls on the preset receiving area of ​​the signal receiving component, the signal receiving component and the auxiliary fixing component are connected by a preset fixing component so that the signal receiving component is fixed to the auxiliary fixing component.

6. The method according to claim 1, characterized in that The step of fixing the signal receiving component to the auxiliary fixing member comprises: When the second light spot falls on the preset receiving area of ​​the signal receiving component, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing part, and the signal receiving component and the auxiliary fixing part are connected using a preset fixing part so that the signal receiving component is fixed to the auxiliary fixing part.

7. The method according to claim 2, characterized in that The step of fixing the signal receiving component to the auxiliary fixing member comprises: When the light spot intensity of the second light spot meets the preset value, fixing glue is added to the connection area between the signal receiving component and the auxiliary fixing member to fix the signal receiving component to the auxiliary fixing member.

8. The method according to any one of claims 1 to 7, characterized in that: Before fixing the auxiliary fixing member of the laser transceiver module to be adjusted to the fixing component of the position adjustment device, the method further includes: The light source assembly is installed in the light emission channel of the auxiliary fixing member, and the position of the light source assembly relative to the first lens module is adjusted so that the laser detection signal emitted by the light source assembly after passing through the first lens module meets the first preset requirement.

9. The method according to claim 8, characterized in that The step of adjusting the position of the light source assembly relative to the first lens module so that the laser detection signal emitted by the light source assembly after passing through the first lens module meets a first preset requirement includes: Controlling the light source assembly installed in the light emission channel of the auxiliary fixing member to emit a light signal; Collecting a first spot image of the laser detection signal emitted by the light source component after passing through the first lens module through a signal collection component, wherein the signal collection component is arranged on the light output path of the light source component; Determining whether the first light spot corresponding to the first light spot image is within a preset focusing range; When the first light spot is not within the preset focusing range, the relative positions of the light source assembly and the first lens module are adjusted until the first light spot is within the preset focusing range.

10. The method according to claim 8, characterized in that The light source assembly and the inner wall of the light receiving channel of the auxiliary fixing member are interference fit, or the light source assembly and the inner wall of the light receiving channel of the auxiliary fixing member are thread fit.

11. A parameter adjustment system for a laser transceiver module, characterized in that: include: The parameter adjustment system includes a control device, a position adjustment device connected to the control device for communication, a signal acquisition component and a positioning component; The position adjustment device comprises a fixing component and a position adjustment component, wherein the fixing component is used to fix the auxiliary fixing component of the laser transceiver module to be adjusted, and the position adjustment component is used to fix the signal receiving component of the laser transceiver module, wherein the first lens module and the light source component of the laser transceiver module are arranged at intervals and fixed in the light emitting channel of the auxiliary fixing component, the second lens module of the laser transceiver module is fixed in the light receiving channel of the auxiliary fixing component, and the light emitting channel and the light receiving channel are arranged at intervals and penetrate the auxiliary fixing component; The control device is used to receive a control instruction and control the light source assembly to transmit a laser detection signal to the detection object through the first lens module according to the control instruction, and to control the signal acquisition assembly to obtain a reflected light signal of the laser detection signal reflected by the detection object, and to control the position adjustment device to adjust the relative position of the signal receiving assembly and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements; When the reflected light signal meets the preset requirement, the control device controls the positioning component to fix the signal receiving component to the auxiliary fixing member; The step of acquiring the reflected light signal of the laser detection signal reflected by the detection object, and controlling the position adjustment device to adjust the relative positions of the signal receiving component and the second lens module according to the reflected light signal until the reflected light signal meets the preset requirements, includes: acquiring the reflected light signal of the laser detection signal reflected by the detection object; judging whether the second light spot corresponding to the reflected light signal falls within the preset receiving area of ​​the signal receiving component; when the second light spot is not within the preset receiving area of ​​the signal receiving component, adjusting the relative positions of the signal receiving component and the second lens module in a direction perpendicular to the extension direction of the light receiving channel by the position adjustment device until the second light spot falls within the preset receiving area of ​​the signal receiving component; Wherein, the determining whether the second light spot corresponding to the reflected light signal falls within a preset receiving area of ​​the signal receiving component includes: Acquire an electrical signal output by the signal receiving component, the electrical signal being generated when the second light spot at least partially falls on the signal receiving component; generate a light spot curve graph according to the electrical signal, and determine whether curve parameters of the light spot curve in the light spot curve graph meet preset requirements, the curve parameters at least including the shape of the light spot curve; when the curve parameters meet the preset requirements, determine that the second light spot falls on a preset receiving area of ​​the signal receiving component; when the curve parameters do not meet the preset requirements, determine that the second light spot does not fall on the preset receiving area of ​​the signal receiving component.

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