Pest flow detection system based on millimeter wave radar

Abstract

The utility model discloses a pest flow detection system based on millimeter wave radar, comprising a mounting rack, the mounting rack comprises a first vertical rack, a first fixed seat, a rotating arm, a connecting support and a bearing seat; the first fixed seat is fixedly mounted on the first vertical frame; one end of the rotating arm is rotationally connected with one side of the first fixed seat; and the radar assembly comprises a radar shell mounted at the top of the bearing seat and a radar module mounted in the radar shell. The device has the characteristics of high resolution, strong anti-interference capability, all-weather detection and the like, can realize non-contact detection on pests, is high in detection efficiency, and brings convenience to users.

Description

TECHNICAL FIELD

[0001] The utility model relates to radar technical field especially relates to a pest flow detection system based on millimeter wave radar. BACKGROUND

[0002] Pests pose a serious threat to the fields such as agriculture, forestry and storage, and the traditional monitoring methods such as traps and molecular detection have the following disadvantages:

[0003] 1) Traps: use sex pheromones, food lures and other to attract pests, and count the number of pests. But this scheme is easily affected by the environment, and the recognition rate of pests in complex environment is low;

[0004] 2) Molecular detection: identify pest species and quantity through DNA or RNA analysis. This scheme can accurately identify pest species and detect when the number of pests is small. It is generally used for early detection, but the detection process is time-consuming and labor-intensive, and the efficiency is low. INVENTION CONTENTS

[0005] The utility model aims at providing a pest flow detection system based on millimeter wave radar, which has high resolution, strong anti-interference ability and all-weather detection, can realize non-contact detection of pests, has high detection efficiency and provides convenience for users.

[0006] To achieve the above purpose, the following technical scheme is adopted:

[0007] A pest flow detection system based on millimeter wave radar, comprising

[0008] A mounting frame comprising a first stand, a first fixed seat, a rotating arm, a connecting bracket, and a bearing seat; the first fixed seat is fixedly installed on the first stand, and one end of the rotating arm is rotatably connected to one side of the first fixed seat; one end of the connecting bracket is installed on the other end of the rotating arm; the bottom of the bearing seat is further connected with a first connecting column, and the other end of the connecting column is hingedly connected with the connecting bracket;

[0009] A radar assembly comprising a radar shell installed on the top of the bearing seat, and a radar module installed in the radar shell; the radar module comprises a main control module, a radio frequency module, a power module, and a filter module; an analog-to-digital converter is arranged on the main control module, and the filter module is connected with the analog-to-digital converter; the radio frequency module is connected with the main control module and the filter module respectively, and a transmitting antenna and a receiving antenna are further installed on the radio frequency module; the power module is connected with the main control module, the filter module and the radio frequency module respectively.

[0010] Further, the filter module comprises two signal filter amplification units, one of which is used for processing the IFI signal, and the other is used for processing the IFQ signal.

[0011] Further, the other side of the first fixing base is provided with a U-shaped notch, and the first stand passes through the U-shaped notch; the inner wall of one end of the U-shaped notch extends towards the first stand and is provided with a clamping block; the two sides of the first stand are each provided with a clamping sliding groove along the length direction thereof, and the clamping block is clamped in one of the clamping sliding grooves; the other end of the U-shaped notch is provided with a first locking screw at the position corresponding to the other clamping sliding groove, and the first locking screw is used for locking and fixing the first fixing base on the first stand.

[0012] Further, one side of the first fixing base is connected with two limiting plates, and the two limiting plates are arranged oppositely; one side of the first fixing base is also connected with a connecting plate, and the connecting plate is located between the two limiting plates; a connecting shaft is further connected between the two limiting plates, and the connecting shaft passes through the connecting plate; one end of the rotating arm is movably sleeved on the connecting shaft; one end of the rotating arm is also provided with a connecting notch, and one end of the connecting plate is inserted into the connecting notch.

[0013] Further, the inner walls of the two ends of the connecting notch are each connected with a damping pad, and each damping pad is in contact with one side of the connecting plate.

[0014] Further, the other end of the rotating arm is also provided with an inclined surface inclined upward towards the first stand; the connecting support comprises a second connecting column, two connecting housings and a second locking screw; the two connecting housings are arranged oppositely, and the lower parts of the opposite sides of the two connecting housings are each provided with a first clamping groove in a hemispherical structure; one end of the second connecting column is connected with a connecting table, and the connecting table is installed on the inclined surface; the other end of the second connecting column is connected with a first connecting ball, and the first connecting ball is clamped between the two first clamping grooves; the second locking screw is installed in the middle parts of the two connecting housings, and one end of the second locking screw is also connected with a locking knob, and the second locking screw is used for locking and limiting the two connecting housings.

[0015] Further, the upper parts of the opposite sides of the two connecting housings are each provided with a second clamping groove in a hemispherical structure; the bottom of the first connecting column is also connected with a second connecting ball, and the second connecting ball is clamped between the two second clamping grooves.

[0016] By adopting the above scheme, the beneficial effects of the present application are as follows:

[0017] The utility model discloses a high resolution, strong anti -interference ability and all -weather detection etc. BRIEF DESCRIPTION OF DRAWINGS

[0018] Fig. 1 It is the principle diagram of the utility model;

[0019] Fig. 2 It is the structure schematic diagram of the utility model;

[0020] Fig. 3 It is the structure schematic diagram of the mounting frame of the utility model;

[0021] Fig. 4 It is Fig. 3 It is the structure schematic diagram of another angle;

[0022] Fig. 5 It is the structure schematic diagram of the radar assembly of the utility model;

[0023] Fig. 6 It is the circuit diagram of the main control module of the utility model;

[0024] Among them, the drawing mark explanation is:

[0025] 1, first stand; 2, first fixed seat; 3, rotating arm; 4, connecting support; 5, bearing seat; 6, radar assembly; 21, clamping block; 22, first locking screw; 23, limit plate; 24, connecting plate; 25, connecting shaft; 41, second connecting column; 42, connecting shell; 43, second locking screw; 44, connecting table; 45, first connecting ball; 46, locking knob; 51, first connecting column; 52, second connecting ball. DETAILED DESCRIPTION

[0026] The utility model is explained in detail in combination with the drawings and specific embodiment.

[0027] Referring to Figs. 1 to 6 As shown in the utility model provides a kind of pest flow detection system based on millimeter wave radar, in an embodiment, including

[0028] Mounting frame, the mounting frame includes first stand 1, first fixed seat 2, rotating arm 3, connecting support 4, bearing seat 5;The first fixed seat 2 is fixedly installed on first stand 1, and one end of rotating arm 3 is rotatably connected with one side of first fixed seat 2;The one end of connecting support 4 is installed on the other end of rotating arm 3;The bottom of bearing seat 5 is further connected with first connecting column 51, and first connecting column 51 is hingedly connected with the other end of connecting support 4;

[0029] A radar assembly 6 is arranged on the top of the carrier 5, and a radar module is arranged in the radar assembly; the radar module comprises a main control module, a radio frequency module, a power module and a filter module; an analog-digital converter is arranged on the main control module, and the filter module is connected with the analog-digital converter; the radio frequency module is connected with the main control module and the filter module respectively, and a transmitting antenna and a receiving antenna are further arranged on the radio frequency module; the power module is connected with the main control module, the filter module and the radio frequency module respectively.

[0030] With reference to the Figs. 1 to 6 In this embodiment, the mounting rack is arranged close to the area to be detected, the first connecting column 51 is hinged to the other end of the connecting bracket 4, and the first connecting column 51 can rotate up and down relative to the connecting bracket 4, so as to finely adjust the installation position and angle of the radar assembly 6; meanwhile, one end of the rotating arm 3 is rotatably connected to one side of the first fixed seat 2, and the rotating arm 3 can rotate relative to the first fixed seat 2, so as to greatly adjust the installation position and angle of the radar assembly 6, so as to meet different use requirements; the radar module adopts a millimeter wave radar sensor between 24.0 GHz and 24.24 GHz, has the characteristics of high resolution and low power consumption, transmits millimeter wave signals through an antenna and receives reflected signals, and identifies the signals of pests according to the Doppler effect and post-data processing such as FFT (fast Fourier transform) (the existing algorithm can be used, and the present application does not involve any improvement on the algorithm and software); the main control module adopts a low-power micro control unit such as STM32, and the functions include:

[0031] 1) receiving the signal input (intermediate frequency signal) of the millimeter wave radar module;

[0032] 2) using the filter module to filter out unnecessary signals, and then using FFT fast Fourier transform to process the data of the finally confirmed pest signals, so as to calculate the distance, position and other information of the target;

[0033] 3) transmitting the detected pest information to the upper computer through the main control board.

[0034] In an embodiment, the filter module comprises two signal filter amplification units, one of which is used for processing IFI signals, and the other is used for processing IFQ signals.

[0035] In an embodiment, the other side of the first fixing base 2 is provided with a U-shaped notch, and the first stand 1 passes through the U-shaped notch; the inner wall of one end of the U-shaped notch extends in the direction of the first stand 1 and has a clamping block 21; the two sides of the first stand 1 are each provided with a clamping sliding groove along the length direction, and the clamping block 21 is clamped in one of the clamping sliding grooves; the other end of the U-shaped notch is provided with a first locking screw 22 corresponding to the other clamping sliding groove, and the first locking screw 22 is used to lock and fix the first fixing base 2 on the first stand 1. When the height of the radar needs to be adjusted, the first locking screw 22 can be loosened first, the first fixing base 2 can be lifted and moved up and down along the first stand 1 (the clamping block 21 is clamped in the clamping sliding groove and can be guided), and after being adjusted to the appropriate position, the first locking screw 22 can be locked, which is simple and convenient.

[0036] In an embodiment, one side of the first fixing base 2 is connected with two limiting plates 23, and the two limiting plates 23 are oppositely arranged; one side of the first fixing base 2 is also connected with a connecting plate 24, and the connecting plate 24 is located between the two limiting plates 23; a connecting shaft 25 is also connected between the two limiting plates 23, and the connecting shaft 25 passes through the connecting plate 24; one end of the rotating arm 3 is movably sleeved on the connecting shaft 25; one end of the rotating arm 3 is also provided with a connecting notch, and one end of the connecting plate 24 is inserted into the connecting notch. One end of the rotating arm 3 is movably sleeved on the connecting shaft 25, and the rotating arm 3 can rotate relative to the first fixing base 2, so that the angle of the radar is greatly adjusted. At the same time, the two inner walls of the connecting notch are each connected with a damping pad, and each damping pad is in contact with one side of the connecting plate 24. By arranging the damping pad, the friction between the connecting plate 24 and the rotating arm 3 can be increased, so that the rotating arm 3 is not easy to loosen, and the stability of the radar installation is ensured.

[0037] In an embodiment, the other end of the rotating arm 3 is also provided with an inclined surface inclined upward in the direction of the first stand 1; the connecting bracket 4 includes a second connecting column 41, two connecting housings 42, and a second locking screw 43; the two connecting housings 42 are oppositely arranged, and the lower part of the opposite side of each of the two connecting housings 42 is provided with a first clamping groove in a hemispherical structure; one end of the second connecting column 41 is connected with a connecting table 44, and the connecting table 44 is installed on the inclined surface; the other end of the second connecting column 41 is connected with a first connecting ball 45, and the first connecting ball 45 is clamped between the two first clamping grooves; the second locking screw 43 is installed in the middle part of the two connecting housings 42, and one end of the second locking screw 43 is also connected with a locking knob 46, and the second locking screw 43 is used to lock and limit the two connecting housings 42.

[0038] Meanwhile, the upper part of the opposite side of the two connecting housings 42 is respectively provided with a second clamping groove in a hemispherical structure; the bottom of the first connecting column 51 is further connected with a second connecting ball 52, and the second connecting ball 52 is clamped between the two second clamping grooves. When the angle of the radar needs to be finely adjusted, the second locking screw 43 is loosened first, so that the first connecting ball 45 and the first clamping groove, and the second connecting ball 52 and the second clamping groove are loosened, then the first connecting column 51 or the second connecting column 41 is manually rotated, and after the radar is adjusted to the appropriate position, the second locking screw 43 is locked, which is simple and convenient.

[0039] The above are only preferred embodiments of the present application, and are not used to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A millimeter wave radar-based pest flow detection system, characterized by, Comprising The mounting frame comprises a first stand, a first fixing seat, a rotating arm, a connecting support and a bearing seat. The first fixing seat is fixedly installed on the first stand. One end of the rotating arm is rotatably connected to one side of the first fixing seat. One end of the connecting support is installed on the other end of the rotating arm. The bottom of the bearing seat is further connected with a first connecting column, and the other end of the connecting support is hingedly connected with the first connecting column. The radar assembly comprises a radar shell installed on the top of the bearing seat and a radar module installed in the radar shell. The radar module comprises a main control module, a radio frequency module, a power module and a filter module. An analog-to-digital converter is arranged on the main control module. The filter module is connected with the analog-to-digital converter. The radio frequency module is connected with the main control module and the filter module. The radio frequency module is further provided with a transmitting antenna and a receiving antenna. The power module is connected with the main control module, the filter module and the radio frequency module.

2. The millimeter wave radar-based pest flow detection system according to claim 1, characterized by, The filter module comprises two signal filter amplification units. One of the signal filter amplification units is used for processing IFI signals, and the other signal filter amplification unit is used for processing IFQ signals.

3. The millimeter wave radar-based pest flow detection system according to claim 1, characterized by, The other side of the first fixing seat is provided with a U-shaped notch, and the first stand passes through the U-shaped notch. The inner wall of one end of the U-shaped notch extends towards the first stand and is provided with a clamping block. The first stand is provided with a clamping slot on each side along the length direction, and the clamping block is clamped in one of the clamping slots. A first locking screw is arranged at the other end of the U-shaped notch corresponding to the other clamping slot, and the first locking screw is used to lock and fix the first fixing seat on the first stand.

4. The millimeter wave radar-based pest flow detection system according to claim 1, characterized by, The first fixing seat is connected with two limiting plates, and the two limiting plates are arranged opposite to each other. The first fixing seat is further connected with a connecting plate, and the connecting plate is located between the two limiting plates. A connecting shaft is further connected between the two limiting plates, and the connecting shaft passes through the connecting plate. One end of the rotating arm is movably sleeved on the connecting shaft. One end of the rotating arm is further provided with a connecting notch, and one end of the connecting plate is inserted into the connecting notch.

5. The millimeter wave radar-based pest flow detection system according to claim 4, characterized by, The inner walls of the two ends of the connecting notch are connected with a damping pad respectively, and each damping pad is in contact with one side of the connecting plate.

6. The millimeter wave radar-based pest flow detection system according to claim 4, characterized by, The other end of the rotating arm is further provided with an inclined surface inclined upward towards the first stand. The connecting support comprises a second connecting column, two connecting housings and a second locking screw. The two connecting housings are arranged opposite to each other, and the upper part of the opposite side of the two connecting housings is provided with a first clamping groove in a hemispherical structure. The second connecting column is connected with a connecting table at one end, and the connecting table is installed on the inclined surface. The other end of the second connecting column is connected with a first connecting ball, and the first connecting ball is clamped between the two first clamping grooves. The second locking screw is installed in the middle of the two connecting housings, and one end of the second locking screw is further connected with a locking knob. The second locking screw is used to lock and limit the two connecting housings.

7. The millimeter wave radar-based pest flow detection system according to claim 6, characterized by, The upper part of the opposite side of the two connecting housings is provided with a second clamping groove in a hemispherical structure. The bottom of the first connecting column is further connected with a second connecting ball, and the second connecting ball is clamped between the two second clamping grooves.

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