Laser radar coded disc device

Abstract

The utility model discloses a laser radar code disc device comprising a PCB code disc, the PCB code disc is composed of a coil PCB and a plurality of sawteeth, the coil PCB and the sawteeth are integrated on one PCB, and the sawteeth are arranged on the side surface of the coil PCB; the code disc is stripped from the distance measuring device, and the code disc and the coil PCB are combined into a new PCB code disc, so that the functions of the code disc and the coil can be realized at the same time; the structural design of the PCB code disc does not need to be matched with an expensive correlation type photoelectric switch for use, and can be matched with a relatively cheap reflection type photoelectric switch for use, so that the cost is reduced. Compared with an existing code disc, the structure design occupies a smaller position of the whole distance measuring device, the occupied space of the whole distance measuring device is saved, and the design difficulty is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to laser radar technical field, concretely is a kind of laser radar code disc device. BACKGROUND

[0002] Laser radar mainly returns ranging information and angle information to the device using laser radar, wherein angle information needs to rely on code disc to return in combination with software program, to obtain the three-dimensional coordinates, azimuth, speed and other parameters of target object.

[0003] The code disc structure used by current laser radar is designed as follows: mainly rely on code disc d (such as Figure 1 ) in laser radar in combination with photoelectric switch f (such as Figure 2 ) for use, code disc d is located in the central control box c of ranging device, code disc d is currently composed of n point teeth a and n equidistant teeth b, n sawtooth is distributed on the code disc d with 18.25mm radius.

[0004] However, the above-mentioned code disc d only has the function of providing angle information, and the function is relatively single. Moreover, the code disc structure needs to be used in combination with relatively expensive photoelectric switch f, which is not conducive to cost control. Moreover, due to the certain volume of photoelectric switch f, the diameter of rotating part e cannot be too small, and the position of the overall ranging device is relatively large, which is not suitable for small-sized ranging device. INVENTION CONTENTS

[0005] The utility model aims at providing a kind of laser radar code disc device to solve the problems raised in the above background.

[0006] To achieve the above object, the utility model provides the following technical scheme: a kind of laser radar code disc device, comprising:

[0007] PCB code disc, the PCB code disc is composed of coil PCB and several sawtooth, the coil PCB and sawtooth are integrated on a piece of PCB, and several sawtooth is arranged on the side surface of coil PCB;

[0008] Drive module, the lower surface of the drive module is equipped with a protective ring, the PCB code disc is installed to the lower surface of drive module and located inside the protective ring.

[0009] Further, the upper surface of the drive module is rotatably installed with rotary disc, the rotary disc is internally installed with emission receiving module, the optical signal of the emission receiving module is output high-low level on the sawtooth of PCB code disc and outside the sawtooth, the emission receiving module includes emission receiving module board, 7Pin terminal, power board, secondary coil induction board, the power board is electrically connected to the emission receiving module board by 7Pin terminal, and the secondary coil induction board is electrically connected with power board.

[0010] Further, the coil PCB is electrically connected with a data receiving plate, the data receiving plate is also located in the protection ring, the surface edge of the power supply plate is electrically connected with a reflective photoelectric switch, and the reflective photoelectric switch corresponds to the sawtooth position.

[0011] Compared with the prior art, the utility model has the advantages of:

[0012] (1) the utility model discloses that the code disc is separated from the distance measuring device, and the code disc and the coil PCB are combined into a new PCB code disc, and the functions of the code disc and the coil can be realized simultaneously, wherein the shape, size and color of the sawtooth can be designed according to actual demands.

[0013] (2) the structural design of the PCB code disc can not be used with the expensive reflection type photoelectric switch, and can be used with the relatively cheap reflective photoelectric switch, which is beneficial to reducing the cost, compared with the existing code disc, the structure design occupies the position of the entire distance measuring device smaller, saves the space of the entire distance measuring device, and reduces the design difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the structural diagram that the code disc is connected with the control box in the prior art;

[0015] Figure 2 It is the structural diagram that the rotating part is connected with the reflection type photoelectric switch in the prior art;

[0016] Figure 3 It is the overall perspective view of the utility model;

[0017] Figure 4 It is the split view of the utility model;

[0018] Figure 5 It is the sectional view of the utility model;

[0019] Figure 6 It is the structural diagram that the power supply plate is connected with the reflective photoelectric switch in the utility model;

[0020] Figure 7 It is the structural diagram that the sawtooth is connected with the coil PCB in the utility model

[0021] Figure 8 It is the schematic diagram of forming the code signal in the utility model.

[0022] In the drawing: a, point tooth;B, equidistant tooth;C, control box;D, code disc;E, rotating part;F, reflection type photoelectric switch;

[0023] 1, rotating disc; 2, drive module; 3, transmitting and receiving module board; 4, bearing; 5, power supply board; 6, data receiving board; 7, sawtooth; 8, secondary coil induction board; 9, reflective photoelectric switch; 10, coil PCB; 11, protective ring; 12, 7Pin terminal. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] Embodiment:

[0026] Please refer to Figures 3-8 , the present application provides a technical solution: a laser radar code disc device, comprising a PCB code disc, the PCB code disc is composed of a coil PCB 10 and a plurality of sawtooth 7, the coil PCB 10 and the sawtooth 7 are integrated on a PCB, and the plurality of sawtooth 7 is arranged on the side surface of the coil PCB 10, and the plurality of sawtooth 7 is distributed on a circle with a radius of 7.95mm, the area of the coil PCB 10 with only coil function is expanded, and the coil and the code disc function can be integrated on a PCB after the coil PCB 10 is cut, that is, the PCB code disc;

[0027] The drive module 2 is provided with a protective ring 11 on the lower surface, and the PCB code disc is installed on the lower surface of the drive module 2 and located inside the protective ring 11.

[0028] In the embodiment, as shown in Figure 3 , Figure 4 , Figure 5 , Figure 8 , the rotating disc 1 is rotatably installed on the upper surface of the drive module 2, the bearing 4 is installed between the rotating disc 1 and the drive module 2, the rotating disc 1 rotates more smoothly, the transmitting and receiving module is installed inside the rotating disc 1, the optical signal of the transmitting and receiving module is outputted as high and low level on the sawtooth 7 of the PCB code disc and outside the sawtooth 7, when the optical signal is on the sawtooth 7 of the PCB code disc, the optical receiver of the transmitting and receiving module outputs high level, and when the optical signal is on the data receiving board 6, other positions output low level.

[0029] In the embodiment, as shown in Figure 4 and Figure 5As shown, the transmitting-receiving module comprises a transmitting-receiving module board 3, 7Pin terminals 12, a power supply board 5, and a secondary coil induction board 8, the transmitting-receiving module board 3 is electrically connected with the power supply board 5 through the 7Pin terminals 12, the secondary coil induction board 8 is electrically connected with the power supply board 5, and the secondary coil induction board 8 and the coil PCB 10 are reserved with a gap to ensure that the two do not contact.

[0030] In the embodiment, as shown in the figure, Figure 5 The coil PCB 10 is electrically connected with a data receiving board 6, and the data receiving board 6 is also located inside the protection ring 11, so that the protection of the data receiving board 6 and the coil PCB 10 is more comprehensive.

[0031] In the embodiment, as shown in the figure, Figure 5 , Figure 6 , Figure 7 The surface edge of the power supply board 5 is electrically connected with a reflective photoelectric switch 9, and the reflective photoelectric switch 9 corresponds to the position of the sawtooth 7, when the power supply board 5 rotates, the reflective photoelectric switch 9 passes through the gap between the sawtooth 7 and the sawtooth 7.

[0032] Specifically, in use, the sawtooth 7 and the coil PCB 10 are combined into a new PCB code disc, and the functions of the code disc and the coil can be realized at the same time.

[0033] The function of the PCB code disc: the reflective photoelectric switch 9 and the PCB code disc analyze the angle information. When the rotating disc 1 in the distance measuring device rotates relative to the PCB code disc with the driving module 2, the light signal on the reflective photoelectric switch 9 will form a code signal on the sawtooth 7 of the data receiving board 6 or the PCB code disc. Figure 8 When the light signal hits the sawtooth 7 of the PCB code disc, the light receiver of the transmitting-receiving module board 3 outputs a high level, and when the light signal hits the data receiving board 6, other positions output a low level, and as the rotating disc 1 rotates relative to the PCB code disc for one revolution, the light receiver outputs a signal to the control unit.

[0034] The function of the coil PCB 10: used for generating an induced magnetic field. When the rotating disc 1 rotates, the secondary coil induction board 8 will cut the induced magnetic field generated by the PCB code disc, and the secondary coil induction board 8 will generate an induced current, and the generated induced current is used for the data transmitting board.

[0035] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A ladar code disk apparatus, characterized by, Include: PCB code disc, the PCB code disc is composed of coil PCB (10) and several sawtooth (7), the coil PCB (10) and sawtooth (7) are integrated on a PCB, and several sawtooth (7) are arranged on the side of coil PCB (10); The drive module (2) is provided with a protective ring (11) on the lower surface, the PCB code disc is installed to the lower surface of the drive module (2) and is located inside the protective ring (11).

2. A ladar code disk apparatus as in claim 1, wherein: The upper surface of the drive module (2) is rotatably installed with a rotating disc (1), the rotating disc (1) is internally installed with a transmitting and receiving module, and the optical signal of the transmitting and receiving module is outputted to the sawtooth (7) of the PCB code disc and the place outside the sawtooth (7).

3. A ladar code disk apparatus as in claim 2, wherein: The transmitting and receiving module includes a transmitting and receiving module board (3), a 7Pin terminal (12), a power board (5) and a secondary coil induction board (8), the power board (5) is electrically connected to the transmitting and receiving module board (3) through the 7Pin terminal (12), and the secondary coil induction board (8) is electrically connected to the power board (5).

4. A ladar code disc apparatus as in claim 3, wherein: The coil PCB (10) is electrically connected with a data receiving board (6), and the data receiving board (6) is also located inside the protective ring (11).

5. A ladar code disk apparatus as in claim 4, wherein: The surface edge of the power board (5) is electrically connected with a reflective photoelectric switch (9), and the reflective photoelectric switch (9) corresponds to the position of the sawtooth (7).

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