Multifunctional detection vehicle for highway toll station

Abstract

The invention relates to the technical field of highway toll station detection, and discloses a multifunctional detection vehicle for a highway toll station, the multifunctional detection vehicle comprises a tractor, the rear side of the tractor is detachably connected with a trailer compartment, the bottom end of the trailer compartment is fixedly connected with a hydraulic pump set, and the interior of the trailer compartment is fixedly connected with a gateway module; a tire pressure monitoring and axle load sensor is arranged at the bottom end of the trailer compartment, wing opening type compartment assemblies are arranged on the left side and the right side of the trailer compartment and used for opening side compartment doors, and an axle load simulation assembly is arranged in the trailer compartment and used for variable axle load simulation. Through adjustment of a servo motor and a linear module, the overall dimensions of different vehicles are simulated, and the axle load simulation assembly simulates different axle load conditions through a hydraulic oil cylinder and a load trolley, so that the detection capability of the equipment under different load conditions can be adjusted and evaluated according to the actual dimensions of the vehicles.

Description

Technical Field

[0001] The invention relates to the technical field of highway toll station detection, in particular to a multifunctional detection vehicle used in highway toll stations. Background Art

[0002] The accuracy of the overload detection system at the entrance of the expressway is an important basis for the management of overload control. The overload detection system for freight vehicles at the entrance of the expressway includes weighing detection equipment and vehicle external dimension measurement equipment, and is used to implement the overload detection system measurement and calibration equipment for the dynamic weighing detection equipment and vehicle external dimension measurement equipment in the overload detection system.

[0003] Overweight vehicles have always been a chronic disease in the road transport industry. At present, there are many types of overweight detection equipment with uneven quality. Since the industry lacks professional metrology and calibration services, complaints and disputes about the accuracy of various overweight detection equipment have never stopped since the day when various scientific and technological means were used to control overweight vehicles. This has brought tremendous pressure to the road administration department. The lack of metrology equipment that matches application needs is one of the important reasons. Taking overweight weighing detection equipment as an example, in the field of social metrology, various metrology institutions generally only use it as a scale (truck scale) for metrological verification, blindly pursuing accuracy indicators according to the requirements of the scale, ignoring the use scenarios of the equipment and the purpose of overweight control, which can easily lead to disputes over the accuracy of measurement data.

[0004] At present, the measurement and calibration of over-limit weighing detection equipment is mainly carried out in the form of closing lanes and moving weights, which is costly, inefficient and difficult to operate. Therefore, those skilled in the art have proposed a multifunctional detection vehicle for highway toll stations to solve the above problems. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides a multifunctional inspection vehicle for highway toll stations, which solves the problem of the prior art of using closed lanes and moving weights to carry out metrological calibration of over-limit weighing detection equipment.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multifunctional inspection vehicle for a highway toll station, comprising a tractor, a trailer compartment is detachably connected to the rear side of the tractor, a hydraulic pump group is fixedly connected to the bottom end of the trailer compartment, a gateway module is fixedly connected to the interior of the trailer compartment, and a tire pressure monitoring and axle load sensor is arranged at the bottom end of the trailer compartment;

[0007] The left and right sides of the trailer compartment are both provided with wing-opening compartment components, which are used to open the side compartment doors;

[0008] An axle load simulation component is provided inside the trailer compartment, which is used for variable axle load simulation;

[0009] The exterior of the tractor and trailer compartments are provided with five external dimension simulation components, which are used for variable external dimension simulation.

[0010] Preferably, the wing-opening compartment assembly includes a side compartment door, the outside of the side compartment door is rotatably connected to the outside of the trailer compartment, the front and rear sides of the interior of the trailer compartment are fixedly connected with hydraulic rods, and the front and rear sides of the inner wall of the side compartment door are fixedly connected with guide rods.

[0011] Preferably, the axle load simulation component includes a bracket, the bottom end of the bracket is fixed to the inner bottom wall of the trailer compartment, three guide rails are arranged on the outside of the bracket, three hydraulic cylinders are fixedly connected to the inner wall of the bracket, the output end of the hydraulic cylinder is fixedly connected to a load trolley, the outer side of the load trolley is fixedly connected to a magnetic scale, and a counterweight group is installed on the inner wall of the load trolley.

[0012] Preferably, the outer dimension simulation component comprises a linear module, a servo motor is installed on the outside of the linear module, a magnetic scale 2 is installed on the top of the linear module, and an auxiliary measuring rod is fixedly connected to the top of the magnetic scale 2.

[0013] Preferably, the outside of the gateway module is electrically connected to the outside of the tire pressure monitoring and axle load sensors, and the gateway module transmits the collected data to the Internet of Things system.

[0014] Preferably, the hydraulic pump group is the power source of the hydraulic rod, and the output end of the hydraulic rod is movably connected to the outside of the guide rod.

[0015] Preferably, the outside of the guide rail matches the bottom of the load trolley, the counterweight group is formed by assembling and combining twenty 500-kilogram counterweights, and the hydraulic pump group is the power source of the hydraulic cylinder.

[0016] Preferably, the five outer dimension simulation components are respectively installed at the bottom of the front and rear of the vehicle, the left and right sides of the rear of the vehicle, and the top of the rear of the vehicle to simulate the length, width and height respectively.

[0017] Preferably, the tractor uses a six-axle articulated train as a basic carrier to understand the relationship between the change in axle load and the mass position.

[0018] Preferably, the Internet of Things system includes:

[0019] Tire pressure monitoring and axle load sensors, which are used to monitor the tire pressure and axle load weight of the vehicle in real time;

[0020] The OBD interface transmits data, which is used to monitor other conditions such as operating speed;

[0021] The gateway module is used to collect data collected by tire pressure monitoring and axle load sensors and OBD interface transmission data to the Internet of Things.

[0022] Working principle: First, when the inspection vehicle enters the toll station, the position of the inspection vehicle is adjusted to an appropriate position to facilitate weighing and size measurement. The hydraulic pump group is started to drive the hydraulic rod to operate, thereby driving the side door to open and inspect and assemble each component;

[0023] Thirdly, the outer dimension simulation component starts the servo motor to drive the linear module to operate, thereby driving the auxiliary measuring rod on the second magnetic scale to move, and then simulates the change of the vehicle length, width and height, so as to simulate the outer dimensions of different vehicles for comparison and detection. The auxiliary measuring rod can be adjusted according to the actual size of the vehicle to ensure the measurement accuracy;

[0024] Finally, the axle load simulation component starts the hydraulic pump group to make the hydraulic cylinder drive the load trolley to move, thereby controlling the distance through the magnetic scale, and then simulating different axle load conditions to evaluate the detection ability of the equipment under different load conditions, which is crucial for calibrating the accuracy of overload weighing detection equipment;

[0025] Finally, the work starts by transmitting data through the tire pressure monitoring and axle load sensor and OBD interface at the bottom of the trailer compartment. The sensor obtains real-time data such as the load, tire pressure, and running speed of each axle of the vehicle during driving. These data are transmitted to the Internet of Things system through the gateway module for real-time monitoring. All collected data are summarized through the gateway module and transmitted to the Internet of Things system for real-time monitoring and management by the road administration department.

[0026] The present invention provides a multifunctional inspection vehicle for a highway toll station. It has the following beneficial effects:

[0027] 1. The present invention simulates the outer dimensions of different vehicles through adjustment of servo motors and linear modules. The axle load simulation component simulates different axle load conditions through hydraulic cylinders and load trolleys, so that the detection capability of the equipment under different load conditions can be adjusted and evaluated according to the actual size of the vehicle, thereby being able to more accurately calibrate the over-limit detection equipment, reduce disputes caused by measurement errors, reduce the high cost and low efficiency problems in traditional detection methods, avoid the complexity and cost of moving weights, improve the overall detection efficiency, and can be adjusted according to the characteristics of different types of vehicles to meet the needs of various over-limit detections and improve the flexibility and adaptability of the detection system.

[0028] 2. The present invention realizes the automation function of the inspection vehicle by driving the side door to open through the hydraulic rod, driving the load trolley to move through the hydraulic cylinder, and driving the linear module to move through the servo motor. The automated design not only speeds up the inspection process, but also significantly improves the work efficiency of operators, enabling them to complete more inspection tasks in a shorter time, making the inspection process faster and more accurate. Operators do not need to perform tedious manual operations, so they can focus on more complex inspection analysis. This improvement not only reduces labor costs, but also reduces the possibility of human errors, making the entire inspection process smoother and more reliable. Through this advanced automation solution, enterprises can improve production efficiency while ensuring the accuracy and consistency of inspection results.

[0029] 3. Through the cloud platform, the present invention allows users to view the tire pressure, axle load and operating status of the vehicle in real time, and make timely adjustments and maintenance decisions. The large amount of data collected can be used for subsequent analysis to help operation managers optimize transportation efficiency, reduce failure rates, and perform predictive maintenance. When abnormal conditions are monitored (such as low tire pressure, excessive axle load, etc.), the system can automatically send an alarm notification to improve safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A perspective view of the present invention;

[0031] Figure 2 It is a structural schematic diagram of the hydraulic pump group of the present invention;

[0032] Figure 3 It is a schematic diagram of the guide rod structure of the present invention;

[0033] Figure 4 A schematic diagram of a vehicle profile detection assembly of the present invention;

[0034] Figure 5 It is a schematic diagram of the structure of the load trolley of the present invention;

[0035] Figure 6 It is a schematic diagram of the linear module structure of the present invention;

[0036] Figure 7 It is a flow chart of the electronic control system of the present invention;

[0037] Figure 8 It is the variable axle load control logic diagram of the present invention;

[0038] Fig. 9 It is the control logic diagram of variable outer dimensions of the present invention;

[0039] Fig.10 This is a flow chart of Internet of Things monitoring of the present invention.

[0040] Among them, 1. tractor; 2. trailer compartment; 3. wing-opening compartment assembly; 301. side compartment door; 302. hydraulic rod; 303. guide rod; 4. hydraulic pump group; 5. axle load simulation assembly; 501. bracket; 502. guide rail; 503. hydraulic cylinder; 504. load trolley; 505. magnetic scale one; 506. counterweight group; 6. outer dimension simulation assembly; 601. linear module; 602. servo motor; 603. magnetic scale two; 604. auxiliary measuring rod; 7. gateway module; 8. tire pressure monitoring and axle load sensor. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Example:

[0043] Please see attached Figure 1 -Attached Figure 4 The embodiment of the present invention provides a multifunctional inspection vehicle for a highway toll station, including a tractor 1. The tractor 1 uses a six-axle articulated train as a basic carrier to understand the relationship between the change of axle load and the mass position. The rear side of the tractor 1 is detachably connected to a trailer car 2, and the bottom end of the trailer car 2 is fixedly connected to a hydraulic pump group 4. The interior of the trailer car 2 is fixedly connected to a gateway module 7. The bottom end of the trailer car 2 is provided with a tire pressure monitoring and axle load sensor 8. The outside of the gateway module 7 is electrically connected to the outside of the tire pressure monitoring and axle load sensor 8. The gateway module 7 transmits the collected data to the Internet of Things system.

[0044] Specifically, the type of tractor 1 uses a six-axle articulated train as the basic carrier. The tractor 1 is responsible for towing the trailer car 2 and monitoring the vehicle status in real time through its sensor system. The six-axle design makes it more advantageous in stability and carrying capacity. The trailer car 2 is connected to the tractor 1 through a detachable link. The bottom of the trailer is fixedly connected to a hydraulic pump group 4 to achieve the lifting and lowering of the trailer car 2 and dynamic detection of the vehicle. The interior of the trailer 2 is fixedly connected to a gateway module 7, which is responsible for data collection and transmission. A tire pressure monitoring and axle load sensor 8 is arranged at the bottom of the trailer car 2 to monitor the pressure of each tire and the load of each axle of the vehicle in real time to ensure the safety and stability of the vehicle during driving. The gateway module 7 is electrically connected to the tire pressure monitoring and axle load sensor 8 to collect sensor data and transmit the collected data to the Internet of Things system in real time through wireless communication to facilitate subsequent analysis and management.

[0045] Please see attached Figure 2 -Attached Figure 4 The left and right sides of the trailer compartment 2 are provided with wing-opening compartment assemblies 3, which are used to open the side compartment door 301. The wing-opening compartment assembly 3 includes a side compartment door 301, and the outside of the side compartment door 301 is rotatably connected to the outside of the trailer compartment 2. The front and rear sides of the interior of the trailer compartment 2 are fixedly connected with hydraulic rods 302. The hydraulic pump group 4 is the power source of the hydraulic rod 302. The front and rear sides of the inner wall of the side compartment door 301 are fixedly connected with guide rods 303, and the output end of the hydraulic rod 302 is movably connected to the outside of the guide rod 303.

[0046] Specifically, the side compartment door 301 is the main entrance and exit of the carriage, and is designed to be wing-open, making it more convenient to open and close the door and adapt to different loading and unloading requirements. The hydraulic rod 302 is responsible for providing the opening and closing power of the side compartment door 301. The hydraulic rod 302 can adjust the force as needed to ensure the smooth movement of the door. The guide rod 303 ensures that the door moves smoothly along the preset trajectory to avoid damage to the carriage or surrounding objects. When the side compartment door 301 is opened, the guide rod 303 plays a guiding role to prevent the door from tilting and getting stuck, thereby improving the safety and stability of the operation. The guide rod 303 also plays a positioning role to ensure that the side compartment door 301 can be accurately docked with the sealing position of the carriage to ensure the safety and sealing of the interior of the carriage. The hydraulic pump group 4 drives the hydraulic rod 302 through the pressure of the hydraulic oil. When the operator issues a switch command, the hydraulic pump group 4 delivers hydraulic oil to the hydraulic rod 302 to push it to retract, thereby driving the side compartment door 301 to open or close. The wing-open design allows quick entry into the carriage when loading and unloading goods, reducing time costs.

[0047] Please see attached Figure 2 , Attachment Figure 5 , Attachment Figure 7 , and attached Figure 8 An axle load simulation component 5 is arranged inside the trailer compartment 2, which is used for variable axle load simulation. The axle load simulation component 5 includes a bracket 501. The bottom end of the bracket 501 is fixed to the inner bottom wall of the trailer compartment 2. Three guide rails 502 are arranged outside the bracket 501. Three hydraulic cylinders 503 are fixedly connected to the inner wall of the bracket 501. The hydraulic pump group 4 is the power source of the hydraulic cylinder 503. The output end of the hydraulic cylinder 503 is fixedly connected to a load trolley 504. The outside of the guide rail 502 matches the bottom of the load trolley 504. The outside of the load trolley 504 is fixedly connected with a magnetic scale 505. A counterweight group 506 is installed on the inner wall of the load trolley 504. The counterweight group 506 is formed by assembling and combining twenty 500-kilogram counterweights.

[0048] Specifically, the load trolley 504 slides along the guide rail 502 and can achieve precise movement under the guidance of the bracket 501, thereby simulating different axle load conditions. The telescopic action of the hydraulic cylinder 503 can accurately control the displacement and applied load of the load trolley 504 through the power source provided by the hydraulic pump group 4, thereby realizing variable axle load simulation. The design of the counterweight weight group 506 takes into account the demand for axle load under different working conditions. The combination of twenty 500-kilogram counterweight weights allows the load trolley 504 to be adjusted to a specific total weight during the simulation process to ensure the accuracy and reliability of the test. The fixing method of the counterweight weight group 506 ensures that it will not loosen or shift during the simulation process, thereby ensuring the consistency of the test. The installation of the magnetic scale 505 can monitor the position of the load trolley 504 in real time and feed it back to the control system for accurate adjustment and recording of test data. The design of the entire system emphasizes flexibility and adjustability, so that it can adapt to different test requirements, such as car stability, force analysis and dynamic response under simulation of different loads.

[0049] Through PLC programming, the hydraulic cylinder 503 is driven to generate tension or pressure on the load trolley 504 equipped with the counterweight weight group 506. The load trolley 504 equipped with the counterweight weight group 506 can be driven to move linearly on the guide rail 502 and docked and locked at any position. The magnetic scale 505 probe and the trolley are fixed to realize real-time measurement of the position of the cylinder movement. The measurement result of the magnetic scale 505 is fed back to the servo hydraulic control valve, and the precise position control of the counterweight block is realized under the automatic control signal of the PLC. The positioning accuracy reaches ±2mm. By combining three groups of load trolleys 504 equipped with counterweight weight groups 506, simulation of load values ​​of different axes can be realized.

[0050] Please see attached Figure 2 , Attachment Figure 4 , Attachment Figure 6 and attached Fig. 9 Five outer dimension simulation components 6 are arranged on the outside of the tractor 1 and the trailer compartment 2, which are used for variable outer dimension simulation. The five outer dimension simulation components 6 are respectively installed at the bottom of the front and rear of the vehicle, the left and right sides of the rear of the vehicle and the top of the rear of the vehicle, and simulate the length, width and height respectively. The outer dimension simulation component 6 includes a linear module 601, a servo motor 602 is installed on the outside of the linear module 601, a magnetic scale 603 is installed on the top of the linear module 601, and an auxiliary measuring rod 604 is fixedly connected to the top of the magnetic scale 603.

[0051] Specifically, the linear module 601 provides linear motion capability and can be extended and adjusted as needed. Its design allows precise adjustment of the external dimensions of the vehicle. The servo motor 602 serves as a power source. The servo motor 602 can provide precise motion control according to the instructions of the control system to ensure that the linear module 601 moves smoothly and controllably. The high precision of the servo motor 602 enables the change of the outer dimensions to meet different test requirements. The second magnetic scale 603 is installed at the top of the linear module 601 to monitor and feedback the displacement of the linear module in real time, ensuring that the system can accurately measure the change of the outer dimensions of each adjustment, and feed back the data to the control system for real-time adjustment. The auxiliary measuring rod 604 is connected to the second magnetic scale 603 for auxiliary measurement to ensure that the change of the outer dimensions can be accurately recorded and analyzed during the simulation process. The second magnetic scale 603 is used in conjunction with the auxiliary measuring rod 604 to monitor and record the change of the outer dimensions in real time to ensure the accuracy of each adjustment. By installing multiple components at the bottom of the front and rear of the vehicle, the left and right sides of the rear of the vehicle, and the top of the rear, the change of the outer dimensions can be simulated in multiple directions, providing comprehensive test conditions for length, width and height.

[0052] The servo motor 602 is controlled by PLC, the feedback signal of the magnetic scale 603 is received, and the linear module 601 is driven to move to the specified position, and the positioning accuracy can reach ±1mm.

[0053] Please see attached Figure 2 , Attachment Figure 7 and attached Fig.10 The Internet of Things system includes a tire pressure monitoring and axle load sensor 8, which is used to monitor the tire pressure and axle load weight of the vehicle in real time, an OBD interface to transmit data, which is used to monitor other conditions such as running speed, and a gateway module 7, which is used to collect data collected by the tire pressure monitoring and axle load sensor 8 and the OBD interface to transmit data to the Internet of Things.

[0054] Specifically, the tire pressure monitoring and axle load sensor 8 monitors the tire pressure and axle load of the vehicle in real time to ensure the safety and stability of the vehicle during driving. Through the built-in pressure sensor, the air pressure status of each tire is detected in real time. The data can be used for the early warning system to remind the driver to perform maintenance and measure the load of each axle to ensure the driving performance and safety of the vehicle under different load conditions. The OBD interface is used to monitor the operating status of the vehicle, such as speed, engine speed, fuel consumption, etc. The interface can communicate with the vehicle's electronic control unit (ECU) to obtain real-time data. This data can not only be used for daily monitoring, but also provide important information for fault diagnosis. As the core of the Internet of Things system, the gateway module 7 is responsible for data collection and transmission. The gateway collects data from the tire pressure monitoring and axle load sensor 8 and the OBD interface, performs preliminary processing and formatting, and transmits the processed data to the cloud or other data processing platforms via the wireless network to achieve remote monitoring and data analysis.

[0055] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional inspection vehicle for a highway toll station, comprising a tractor (1), characterized in that: The rear side of the tractor (1) is detachably connected to a trailer compartment (2), the bottom end of the trailer compartment (2) is fixedly connected to a hydraulic pump group (4), the interior of the trailer compartment (2) is fixedly connected to a gateway module (7), and the bottom end of the trailer compartment (2) is provided with a tire pressure monitoring and axle load sensor (8); The left and right sides of the trailer compartment (2) are both provided with wing-opening compartment components (3) for opening the side compartment doors (301); An axle load simulation component (5) is arranged inside the trailer compartment (2) and is used for variable axle load simulation; Five external dimension simulation components (6) are arranged outside the tractor (1) and the trailer compartment (2), and are used for variable external dimension simulation.

2. A multifunctional inspection vehicle for a highway toll station according to claim 1, characterized in that: The wing-opening compartment assembly (3) comprises a side compartment door (301), the outside of the side compartment door (301) is rotatably connected to the outside of the trailer compartment (2), the front and rear sides of the interior of the trailer compartment (2) are fixedly connected to hydraulic rods (302), and the front and rear sides of the inner wall of the side compartment door (301) are fixedly connected to guide rods (303).

3. The multifunctional detection vehicle for a highway toll station according to claim 1, characterized in that: The axle load simulation component (5) comprises a bracket (501), the bottom end of the bracket (501) is fixed to the inner bottom wall of the trailer compartment (2), three guide rails (502) are arranged outside the bracket (501), the inner wall of the bracket (501) is fixedly connected to three hydraulic cylinders (503), the output end of the hydraulic cylinder (503) is fixedly connected to a load trolley (504), the outer side of the load trolley (504) is fixedly connected to a magnetic scale (505), and the inner wall of the load trolley (504) is installed with a counterweight group (506).

4. The multifunctional detection vehicle for a highway toll station according to claim 1, characterized in that: The outer dimension simulation component (6) comprises a linear module (601), a servo motor (602) is installed outside the linear module (601), a magnetic scale 2 (603) is installed at the top of the linear module (601), and an auxiliary measuring rod (604) is fixedly connected to the top of the magnetic scale 2 (603).

5. The multifunctional detection vehicle for a highway toll station according to claim 1, characterized in that: The exterior of the gateway module (7) is electrically connected to the exterior of the tire pressure monitoring and axle load sensor (8), and the gateway module (7) transmits the collected data to the Internet of Things system.

6. A multifunctional inspection vehicle for a highway toll station according to claim 2, characterized in that: The hydraulic pump group (4) is the power source of the hydraulic rod (302), and the output end of the hydraulic rod (302) is movably connected to the outside of the guide rod (303).

7. The multifunctional inspection vehicle for a highway toll station according to claim 3, characterized in that: The exterior of the guide rail (502) matches the bottom of the load trolley (504), the counterweight group (506) is formed by assembling and combining twenty 500-kilogram counterweights, and the hydraulic pump group (4) is the power source of the hydraulic cylinder (503).

8. The multifunctional detection vehicle for a highway toll station according to claim 4, characterized in that: The five outer dimension simulation components (6) are respectively installed at the bottom of the front and rear of the vehicle, the left and right sides of the rear of the vehicle, and the top of the rear of the vehicle to simulate the length, width and height respectively.

9. The multifunctional inspection vehicle for a highway toll station according to claim 1, characterized in that: The tractor (1) uses a six-axle articulated train as a basic carrier to understand the relationship between the change in axle load and the mass position.

10. The multifunctional inspection vehicle for a highway toll station according to claim 5, characterized in that: The Internet of Things system includes: Tire pressure monitoring and axle load sensor (8), which is used to monitor the tire pressure and axle load weight of the vehicle in real time; The OBD interface transmits data, which is used to monitor other conditions such as operating speed; The gateway module (7) is used to collect data collected by the tire pressure monitoring and axle load sensors (8) and the OBD interface transmission data and transmit it to the Internet of Things.

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