Intelligent matching system for vehicles and cargos
By using image recognition and a spraying mechanism to clean dust from the license plate surface, combined with a light sensor to adjust supplementary lighting, the problem of license plate misidentification after the vehicle has moved has been solved, thus improving the recognition accuracy of the vehicle-cargo matching system.
Patent Information
- Application Number
- CN202521256514.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-18
- Publication Date
- 2026-07-10
- Estimated Expiration
- 2035-06-18
AI Technical Summary
After a long period of driving, dust accumulates on the license plate, making it difficult to identify correctly. This can lead to misjudgments that the license plate is obscured, affecting the accuracy of the vehicle-cargo matching system.
When an image recognition system detects an abnormal license plate color, a spraying mechanism sprays cleaning water to clean the license plate surface, and a light sensor adjusts the supplementary lighting to ensure that the license plate can be accurately identified in low-light conditions.
It effectively prevents misjudgment caused by license plates being obscured by dust, and improves the recognition accuracy of the vehicle-cargo matching system, especially in low-light environments at night, it can accurately identify license plates.
Smart Images

Figure CN224480721U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cargo matching, and in particular to an intelligent vehicle-cargo matching system. Background Technology
[0002] Against the backdrop of the rapid development of the modern logistics industry, efficient and accurate truck-cargo matching is key to reducing logistics costs and improving transportation efficiency. Traditional truck-cargo matching models mainly rely on offline communication between logistics information departments, freight intermediaries, or drivers and cargo owners. This model suffers from problems such as information asymmetry, low matching efficiency, and high transaction costs. With the popularization of internet technology, online truck-cargo matching platforms have emerged, improving information flow to some extent.
[0003] In actual transportation, some drivers, in order to obtain higher wages, will cover their license plates to conceal the true load information of their vehicles, loading and unloading goods beyond the permitted limits. This behavior not only damages the service life and driving safety of vehicles, but also increases the risk of accidents during transportation. It also undermines fair market competition and squeezes the survival space of legitimate and compliant transportation practitioners. However, after long-term driving, a certain amount of dust inevitably accumulates on the surface of the license plate, making it difficult for the system to record the license plate, thus leading to misjudgments of a covered license plate. This application aims to solve the problem that dust can obscure license plates after long-term driving, making them difficult to detect and thus leading to misjudgments of a covered license plate. A vehicle-cargo intelligent matching system is proposed. Utility Model Content
[0004] To overcome the problem that existing vehicle-cargo intelligent matching systems accumulate dust on license plate surfaces after vehicles have been in use for a long time, causing the system to fail to correctly identify the license plate and thus misjudging it as an obscured license plate.
[0005] The technical solution of this utility model is: a vehicle-cargo intelligent matching system, including a cargo acquisition module, wherein the cargo acquisition module includes a barcode scanner and a cargo acquisition camera;
[0006] The cargo acquisition module is connected to a vehicle and cargo information storage module, and the cargo acquisition module collects cargo information and stores it in the vehicle and cargo information storage module.
[0007] The vehicle and cargo information storage module is also connected to a vehicle status acquisition module, which includes a weight sensor and a signal transmitter. The vehicle status acquisition module collects the empty status of the truck and transmits it to the vehicle and cargo information storage module.
[0008] The vehicle and cargo information storage module is also equipped with an idle matching system.
[0009] The vehicle-cargo intelligent matching system also includes a verification system, which includes an injection mechanism, and the injection mechanism includes an identification module and an injection module.
[0010] Preferably, the recognition module includes a verification camera, a control module, and an image recognition system. When the image recognition system identifies an abnormal color of the vehicle license plate, the control module controls the spraying module to spray water onto the license plate.
[0011] Preferably, the control module is configured as a microcontroller, and the control module is connected to the injection module.
[0012] Preferably, the injection module further includes an injection pipe that passes through and is connected to the identification module, and a pump assembly is connected to the rear end of the injection pipe.
[0013] Preferably, the identification module further includes a fixing plate, which is fixedly connected to the spray pipe. A supplementary lighting module is connected to the fixing plate. The supplementary lighting module includes a light sensor, which is connected to a control module. The light sensor is connected to a control module, which is connected to a supplementary light. The light sensor collects the light intensity around the system and transmits it to the control module. The control module controls the supplementary light to illuminate the license plate.
[0014] Preferably, the control module is configured as a microcontroller, and the control module is connected to the image recognition system.
[0015] Preferably, an adjustment assembly is connected to the fixed pad, the adjustment assembly includes a sliding box, the sliding box is fixedly connected to the fixed pad, the sliding box is slidably connected to the guide frame, a drive assembly is connected to the sliding box, an auxiliary wheel is connected to the drive assembly, and a coupling frame is provided at the front and rear ends of the auxiliary wheel, the coupling frame is slidably connected to the guide frame.
[0016] Preferably, one end of the guide frame is connected to a rotating assembly, which includes a rotating head, a rotating rod connected to the rotating head, a second servo motor connected to the rear end of the rotating rod, a partition connected to the second servo motor, a mounting box connected to the partition, and an inlet pipe connected to the front end face of the mounting box. A solenoid valve is installed on the inlet pipe.
[0017] The beneficial effects of this utility model are:
[0018] 1. This utility model is equipped with a spraying mechanism that uses an image recognition system to identify whether there is a color difference on the surface of the license plate. When a color difference is found on the license plate, the spraying mechanism sprays cleaning water to clean the surface of the license plate. After cleaning, a verification camera takes a picture of the license plate to record it. This can, to a certain extent, prevent the license plate from accumulating a lot of dust after long-term driving, making it difficult to record the license plate number.
[0019] 2. This utility model uses a light sensor to collect data on the ambient light intensity around the system. When the ambient light intensity is below a certain threshold, the control module can activate the supplementary lighting. The image recognition system then determines whether the spraying module needs to be used. When the ambient light intensity is above a certain threshold, the control module can directly control the spraying module to spray. This solves the problem that when there is insufficient light at night, the camera may fail to recognize the license plate due to exposure issues, even though the license plate itself is not obstructed, yet the system still starts spraying water, resulting in ineffective cleaning. Attached Figure Description
[0020] Figure 1 The diagram shown is the first block diagram of the intelligent vehicle-cargo matching system of this utility model.
[0021] Figure 2 The diagram shown is the second block diagram of the intelligent vehicle-cargo matching system of this utility model;
[0022] Figure 3 The diagram shown is the third block diagram of the intelligent vehicle-cargo matching system of this utility model.
[0023] Figure 4 The diagram shown is a three-dimensional structural schematic of the injection module of the vehicle-cargo intelligent matching system of this utility model.
[0024] Figure 5 The diagram shown is a three-dimensional structural schematic of the adjustment components of the intelligent vehicle-cargo matching system of this utility model.
[0025] Figure 6 The diagram shown is a three-dimensional structural schematic of the supplementary lighting module of the vehicle-cargo intelligent matching system of this utility model.
[0026] Figure 7 The diagram shown is the fourth block diagram of the intelligent vehicle-cargo matching system of this utility model.
[0027] Explanation of reference numerals in the attached diagram: 1. Identification module; 2. Injection module; 3. Adjustment component; 4. Rotation component;
[0028] 5. Supplemental lighting module; 101. Fixing pad; 102. Verification camera; 201. Spray pipe; 202. Liquid delivery pipe; 203. Liquid collection head; 204. Corrugated connecting pipe; 205. Lifting pump; 206. Suction pipe; 301. Sliding box; 302. First servo motor; 303. First meshing wheel; 304. Fixed rotating shaft; 305. Coupling frame; 306. Auxiliary wheel; 307. Guide frame; 308. Second meshing wheel; 401. Rotating head; 402. Rotating rod; 403. Second servo motor; 404. Mounting box; 405. Partition plate; 406. Liquid inlet pipe; 501. Supplemental light; 502. Light sensor; 503. Control module. Detailed Implementation
[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0030] Example 1:
[0031] Intelligent vehicle-cargo matching system, based on Figures 1-4 As shown, it includes a cargo acquisition module, which includes a barcode scanner and a cargo acquisition camera;
[0032] The cargo acquisition module is connected to the vehicle and cargo information storage module, and the cargo acquisition module collects cargo information and stores it in the vehicle and cargo information storage module;
[0033] The vehicle and cargo information storage module is also connected to a vehicle status acquisition module, which includes a weight sensor and a signal transmitter. The vehicle status acquisition module collects information on the empty status of the truck and transmits it to the vehicle and cargo information storage module.
[0034] The vehicle and cargo information storage module also includes an idle matching system.
[0035] The vehicle-cargo intelligent matching system also includes a verification system, which includes an injection mechanism, and the injection mechanism includes an identification module 1 and an injection module 2.
[0036] The system includes a barcode scanner and a cargo acquisition camera, both equipped with signal transmitters identical to those inside the vehicle information acquisition module. The idle matching system comprises a logistics management center, which includes a truck database for collecting truck information, comprising a vehicle source database (including databases of vehicles awaiting loading, vehicles available for loading, and return trip vehicles); a cargo source database for collecting cargo owner and cargo information; and a matching subsystem that matches the database of vehicles awaiting loading with the cargo source database before matching the database of vehicles awaiting loading with the cargo source database.
[0037] The recognition module 1 includes a verification camera 102, a control module, and an image recognition system. When the image recognition system identifies an abnormal color of the vehicle license plate, the control module controls the spray module 2 to spray water onto the license plate.
[0038] The image recognition system includes an acquisition module, a license plate restoration module, a feature region determination module, a feature comparison module, a processing module, and a license plate occlusion detection module.
[0039] The acquisition module is used to acquire the first vehicle detection information of the vehicle to be identified;
[0040] The first vehicle detection information includes the license plate obscuring area and the first vehicle feature area;
[0041] The license plate restoration module is used to restore the obscured area of the license plate and obtain multiple license plate restoration results;
[0042] The feature region determination module is used to determine the second vehicle feature region of the suspected vehicle corresponding to each restoration result based on multiple license plate restoration results.
[0043] The feature comparison module is used to compare multiple second vehicle feature regions with the first vehicle feature region to obtain multiple feature comparison similarities.
[0044] The processing module is used to identify the vehicle to be identified from multiple suspected vehicles based on the similarity of multiple features.
[0045] The license plate occlusion detection module is used to extract the license plate detection area of the vehicle to be identified from the surveillance video within a preset time period, and to determine whether the license plate detection area is occluded.
[0046] The processing module is also used to determine whether the vehicle to be identified is a vehicle with its license plate intentionally obscured when there is obstruction.
[0047] The processing module is also used to determine, when there is no obstruction, that the vehicle to be identified is not a vehicle with its license plate intentionally obscured.
[0048] The control module is configured as a microcontroller and is connected to the injection module 2.
[0049] In this embodiment, the control module generally uses a microcontroller of model STM32F030F4P6. It reads the input signal, performs calculations and judgments, and then operates the level state of the output pin to ultimately achieve the purpose of accurately controlling the action of external devices.
[0050] In this embodiment, the cargo acquisition module, vehicle-cargo information storage module, and vehicle status acquisition module are all existing technologies. The vehicle-cargo information storage module is mainly used in conjunction with the idle matching system and can be visualized and controlled in the form of a data platform.
[0051] The injection module 2 also includes an injection pipe 201, which passes through the identification module 1 and is connected to the identification module 1. A pump assembly is connected to the rear end of the injection pipe 201.
[0052] The pump assembly also includes a liquid delivery pipe 202, a liquid collection head 203 connected to the liquid delivery pipe 202, a corrugated connecting pipe 204 connected to the liquid collection head 203, a lift pump 205 connected to the corrugated connecting pipe 204, and a suction pipe 206 connected to the inlet end of the lift pump 205. The liquid collection head 203 is actually a five-way connector, which connects the inlet end of the liquid delivery pipe 202 and the outlet end of the corrugated connecting pipe 204 respectively. The suction pipe 206 penetrates the shell wall of the mounting box 404. In this embodiment, the lift pump 205 is generally used in conjunction with a miniature water pump of model BSP40160.
[0053] Example 2:
[0054] Based on Example 1, to address the issue that when there is insufficient light at night, the camera may fail to recognize the license plate due to exposure problems, even though the license plate itself is not obstructed, yet the system activates water spraying, resulting in ineffective cleaning, refer to... Figures 5-7 The structure shown.
[0055] Unlike Embodiment 1, the identification module 1 also includes a fixing plate 101, which is fixedly connected to the jet pipe 201, and a supplementary light module 5 is connected to the fixing plate 101.
[0056] Additionally, to address the issue of cameras failing to recognize license plates due to exposure problems in low-light conditions at night, even when the license plate itself is unobstructed, the system might still activate water spraying, resulting in ineffective cleaning.
[0057] Furthermore, the supplementary lighting module 5 includes a light sensor 502, which is connected to the control module. The light sensor 502 is also connected to the control module 503, which is connected to the supplementary light 501. The light sensor 502 collects the light intensity around the system and transmits it to the control module 503 and the control module. The control module 503 controls the supplementary light 501 to illuminate the license plate.
[0058] In this embodiment, the light sensor 502 is generally used in conjunction with a BH1750FVI photodiode-type light sensor. When light shines on the PN junction of the photodiode, photon energy is absorbed, generating electron-hole pairs. Under the influence of the built-in electric field of the PN junction, electrons and holes move in different directions, thereby generating current in the external circuit. The BH1750FVI integrates a signal processing circuit to convert the generated current signal into a digital signal, which is then transmitted through I... 2The C-bus output is sent to external devices to realize the quantitative measurement of light intensity, so as to control the opening and closing of the supplementary light 501. When the light intensity around the system collected by the light sensor 502 is lower than the rated value, the supplementary light 501 can be turned on by the control module 503, and the image recognition system can determine whether the spraying module needs to be used. When the light intensity around the system collected by the light sensor 502 is higher than the rated value, the spraying module can be directly controlled by the control module to spray.
[0059] Furthermore, the control module 503 is configured as a microcontroller and is connected to the image recognition system.
[0060] The control module 503 typically uses an STM32F030F4P6 microcontroller. It reads the input signal, performs calculations and judgments, and then operates the level state of the output pin to ultimately achieve precise control of the image recognition system's actions.
[0061] Furthermore, an adjustment component 3 is connected to the fixed pad 101. The adjustment component 3 includes a sliding box 301, which is fixedly connected to the fixed pad 101. The sliding box 301 is slidably connected to the guide frame 307. A drive component is connected to the sliding box 301, and an auxiliary wheel 306 is connected to the drive component. A coupling frame 305 is provided at the front and rear ends of the auxiliary wheel 306, and the coupling frame 305 is slidably connected to the guide frame 307.
[0062] The drive assembly also includes a first servo motor 302 connected to the sliding box 301. A fixed rotating shaft 304 is connected to the output shaft of the first servo motor 302. A first meshing wheel 303 is connected to the fixed rotating shaft 304. The teeth of the first meshing wheel 303 mesh with the teeth of the second meshing wheel 308. The fixed rotating shaft 304 on the second meshing wheel 308 passes through the lower end of the coupling frame 305. The second meshing wheel 308 and the coupling frame 305 are rotatably connected through the fixed rotating shaft 304. In this embodiment, the first servo motor 302 is generally an ECMA servo motor.
[0063] Furthermore, one end of the guide frame 307 is connected to a rotating assembly 4. The rotating assembly 4 includes a rotating head 401, a rotating rod 402 connected to the rotating head 401, a second servo motor 403 connected to the rear end of the rotating rod 402, a partition 405 connected to the second servo motor 403, a mounting box 404 connected to the partition 405, and an inlet pipe 406 connected to the front end face of the mounting box 404. A solenoid valve is installed on the inlet pipe 406.
[0064] The second servo motor 403 drives the rotating rod 402 to rotate, so that the guide frame 307 can rotate around the rotating rod 402, thereby realizing the position adjustment of the identification module 1. In this embodiment, the second servo motor 403 is generally used in conjunction with an ECMA servo motor.
[0065] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.
Claims
1. A vehicle-cargo intelligent matching system, including a cargo acquisition module, wherein the cargo acquisition module includes a barcode scanner and a cargo acquisition camera; The cargo acquisition module is connected to a vehicle and cargo information storage module, and the cargo acquisition module collects cargo information and stores it in the vehicle and cargo information storage module. The vehicle and cargo information storage module is also connected to a vehicle status acquisition module, which includes a weight sensor and a signal transmitter. The vehicle status acquisition module collects the empty status of the truck and transmits it to the vehicle and cargo information storage module. Its features are: The vehicle-cargo intelligent matching system also includes a verification system, which includes an injection mechanism, and the injection mechanism includes an identification module (1) and an injection module (2); The identification module (1) also includes a fixing plate (101), which is fixedly connected to the spray pipe (201). A supplementary lighting module (5) is connected to the fixing plate (101). The supplementary lighting module (5) includes a light sensor (502), which is connected to a control module. The light sensor (502) is connected to a control module (503), which is connected to a supplementary light (501). The light sensor (502) collects the light intensity around the system and transmits it to the control module (503) and the control module. The control module (503) controls the supplementary light (501) to illuminate the license plate. An adjustment assembly (3) is connected to the fixed pad (101). The adjustment assembly (3) includes a sliding box (301), which is fixedly connected to the fixed pad (101). The sliding box (301) is slidably connected to the guide frame (307). A drive assembly is connected to the sliding box (301), and an auxiliary wheel (306) is connected to the drive assembly. A coupling frame (305) is provided at both the front and rear ends of the auxiliary wheel (306), and the coupling frame (305) is slidably connected to the guide frame (307). One end of the guide frame (307) is connected to a rotating assembly (4). The rotating assembly (4) includes a rotating head (401), a rotating rod (402) connected to the rotating head (401), a second servo motor (403) connected to the rear end of the rotating rod (402), a partition (405) connected to the second servo motor (403), a mounting box (404) connected to the partition (405), and an inlet pipe (406) connected to the front end face of the mounting box (404). A solenoid valve is installed on the inlet pipe (406).
2. The intelligent vehicle-cargo matching system according to claim 1, characterized in that: The injection module (2) also includes an injection pipe (201), which passes through the identification module (1) and is connected to the identification module (1). The rear end of the injection pipe (201) is connected to a pump assembly.