A concrete production vehicle identification method and system

Abstract

The application provides a concrete production vehicle identification method and system, and belongs to the technical field of automatic identification; the method first determines whether the positioning information and the travel curve information are consistent by combining the concrete vehicle positioning information and the travel curve information in a first identification mechanism; subsequently, in order to ensure the accuracy of the concrete vehicle positioning information, the concrete vehicles are grouped in a second identification mechanism, and the accurate position information of the target concrete vehicle is determined by other concrete vehicles in the group; finally, the results of the first identification mechanism and the second identification mechanism are combined by using the proposed judgment method in an identification confirmation mechanism, and the identity information of the concrete production vehicle is determined; the travel information, the position information and the identity information of the concrete production vehicle are bound and analyzed, the accuracy of the identity information is determined through the travel information and the position information, and the obtained identity information and positioning information of the concrete production vehicle are more accurate.

Description

Technical Field

[0001] This invention relates to the field of automated identification technology, and more specifically, to a method and system for identifying concrete production vehicles. Background Technology

[0002] With the increasing demand for concrete production and transportation, concrete mixer trucks play an important role in urban construction, road construction, and other infrastructure projects. To ensure the efficiency and quality of concrete transportation, timely monitoring and management of the operating status, location, and related operational information of transport vehicles has become crucial. However, traditional management models rely on manual inspection, which suffers from problems such as low efficiency, large errors, and insufficient management coverage.

[0003] In response to this situation, existing advanced technologies, utilizing advanced sensor, wireless communication, and image analysis technologies, can achieve automatic real-time identification and monitoring of concrete production vehicles. These technologies can automatically and accurately identify the vehicle's identity, location, route, and status, thereby improving the management efficiency of concrete transportation, reducing human intervention, and enhancing safety and transparency during the transportation process. The application of such technologies not only provides concrete production companies with convenient and efficient vehicle management methods but also promotes the development of intelligent logistics and supports the digital transformation of the entire construction industry. However, in special circumstances, such as severe weather and dust pollution, image analysis technology may not yield accurate results. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned problems existing in the prior art and to greatly improve its technical effect on the basis of the original technology; this invention provides a method for identifying concrete production vehicles, the method comprising:

[0005] S100 First Identification Mechanism: S101, Establish a 3D model of the construction site terrain and extract the position information of each point on the ground in the 3D model; S102, Vertically map the curved surface formed by the ground in the 3D model to a plane, then map the position information of each point on the curved surface onto the plane; S103, Obtain the real-time task information and position information of each concrete vehicle, generate the travel curve information of each concrete vehicle performing the corresponding task on the plane according to the real-time task information, combine the position information and travel curve information to identify whether the position information and travel curve information of the corresponding concrete production vehicle are consistent; Specifically, through AutoCAD Civil The process involves creating a 3D model of the construction site terrain, with the surface formed by the 3D model serving as the surface of the construction site ground. Acquiring real-time task and location information for each concrete vehicle includes obtaining equipment information for the concrete vehicles, including equipment number and set coding information. Generating travel curve information for each concrete vehicle's corresponding task on the plane based on the real-time task information includes generating travel information for each concrete vehicle based on its real-time location, task information, and the construction site terrain, and mapping this travel information onto the plane to generate travel curve information for each concrete vehicle. Each concrete vehicle corresponds to one travel curve. Combining the location information and travel curve information to identify whether the location information and travel curve information of the corresponding concrete production vehicle are consistent includes determining whether the vertical distance from the location information of the corresponding concrete vehicle to the travel curve is greater than 1 meter. If it is greater than 1 meter, it indicates inconsistency; if it is not greater than 1 meter, it indicates consistency. The travel curve information includes: arbitrarily selecting one direction as the x-axis and the direction perpendicular to the x-axis as the y-axis on the mapped plane to create a Cartesian coordinate system; the travel curve information is based on the plane formed by the x and y axes, showing the path the concrete vehicle travels on the plane to perform its task.

[0006] S200 Second Identification Mechanism: S201, group concrete production vehicles, with each group containing at least three vehicles; S202, install ultrasonic sensors of the same frequency in the same group, allowing each concrete production vehicle in the same group to obtain the location and distance information of other concrete vehicles in the group by receiving ultrasonic waves of the corresponding frequency in real time; S203, calculate the location information of other concrete vehicles in the group by combining the real-time location information of each concrete vehicle in the group with the obtained location and distance information of other concrete vehicles in the group; if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the real-time location information obtained by the target concrete vehicle, then the positioning information of the target concrete vehicle is correct; if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is different from the real-time location information obtained by the target concrete vehicle, then the positioning information of the target concrete vehicle is incorrect; specifically, ultrasonic sensors of different frequencies are installed in different groups. The system uses a wave sensor, where each group of concrete vehicles only recognizes and responds to ultrasonic information of the same frequency as itself. The acquisition of the azimuth and distance information of other concrete vehicles in the group includes: calculating the distance information between the target concrete vehicle and other concrete vehicles based on the time it takes to send ultrasonic information to other concrete vehicles in the group and receive corresponding feedback information, using the time and half the speed of ultrasonic wave propagation; determining the azimuth information of other concrete vehicles relative to the target vehicle based on the received ultrasonic wave reflection angle; combining the real-time position information of each concrete vehicle in the group with the acquired azimuth and distance information of other concrete vehicles in the group includes: calculating the position information of other concrete vehicles in the group based on spherical geometry using the following method: assuming the latitude and longitude information of the target concrete vehicle is (μ1, λ1), and the azimuth angle and distance of other concrete vehicles relative to the target vehicle are θ and d respectively, then the formula for obtaining the latitude and longitude information (μ2, λ2) of other concrete vehicles is: where the formula for calculating the longitude information μ2 is:

[0007] Where μ1 represents the longitude information of the target concrete vehicle, and θ rad λ1 represents the azimuth angle θ in radians, λ1 represents the dimensional information of the target concrete vehicle in radians, and R represents the Earth's radius.

[0008] The formula for calculating the dimensional information λ² is:

[0009] Where λ1 represents the dimensional information of the target concrete vehicle, and θ rad R is the azimuth angle θ in radians, and R is the Earth's radius.

[0010] Furthermore, if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the real-time location information of the target concrete vehicle, it means that the distance between the location information of the target concrete vehicle calculated by other concrete vehicles in the same group and the real-time location information of the target concrete vehicle is less than 1 meter. If the location information of the target concrete vehicle calculated by other concrete vehicles in the group is not the same as the real-time location information of the target concrete vehicle, it means that the distance between the location information of the target concrete vehicle calculated by other concrete vehicles in the same group and the real-time location information of the target concrete vehicle is greater than or equal to 1 meter.

[0011] S300 Identification and Confirmation Mechanism: S301, If ​​the location information and travel curve information of the corresponding concrete vehicle obtained through S100 are consistent, and the location information of the corresponding concrete vehicle in the corresponding concrete vehicle group in S200 is correctly determined, then the identity information of the corresponding concrete vehicle is confirmed; S302, If the location information and travel curve information of the corresponding concrete vehicle obtained through S100 are consistent, but the location information of the corresponding concrete vehicle in the corresponding concrete vehicle group in S200 is incorrect, then the location information of the target concrete vehicle determined by other concrete vehicles in the group is taken as the correct location information, and the correct location information of the target concrete vehicle is recombined with the travel curve of the target concrete vehicle in S100; if the repositioned target concrete vehicle location information and travel curve information are consistent, then the identity information of the target concrete vehicle is confirmed; if the repositioned target concrete vehicle location information and travel curve information are inconsistent, then the corresponding target concrete vehicle is reminded to travel on the corresponding travel curve; S303, If the location information and travel curve information of the target concrete vehicle obtained through S100 are consistent, then the identity information of the target concrete vehicle is confirmed; if the repositioned target concrete vehicle location information and travel curve information are inconsistent, then the corresponding target concrete vehicle is reminded to travel on the corresponding travel curve; S303, If the location information and travel curve information of the target concrete vehicle obtained through S100 are consistent, then the identity information of the target concrete vehicle is confirmed; if the location information and travel curve information of the target concrete vehicle are inconsistent, then the target concrete vehicle is reminded to travel on the corresponding travel curve; If the location information and travel curve information of the corresponding concrete vehicle are inconsistent, but the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be correct, then the concrete vehicle in S100 is reminded to drive on the corresponding travel curve to facilitate identity verification; S304, if the location information and travel curve information of the corresponding concrete vehicle are inconsistent as identified by S100, and the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be incorrect, then the location information of the target concrete vehicle determined by other concrete vehicles in the group is taken as the correct location information, and the correct location information of the target concrete vehicle is recombined with the travel curve of the target concrete vehicle in S100; if the repositioned location information and travel curve information of the target concrete vehicle are consistent, then the identity information of the target concrete vehicle is determined; if the repositioned location information and travel curve information of the target concrete vehicle are inconsistent, then the corresponding target concrete vehicle is reminded to drive on the corresponding travel curve to facilitate identity verification.

[0012] In addition, the present invention also provides a concrete production vehicle identification system, which is used in the concrete production vehicle identification method described above. The system includes: an information acquisition module, an information analysis module, and an identification confirmation module. The information acquisition module is used to acquire information including: construction site terrain information, real-time location information of all concrete production vehicles, location information of all concrete production vehicles, and location and distance information of target vehicles in the same group to obtain the orientation and distance information of other concrete production vehicles, and transmits the acquired information to the information analysis module. The information analysis module includes a first information identification unit and a second information identification unit. The first information identification unit is used to establish a three-dimensional model of the construction site terrain based on the acquired construction site terrain information, and vertically map the curved surface composed of the ground in the three-dimensional model to a plane; simultaneously, it is used to identify the concrete production vehicles based on their real-time task information. The planar data generates travel curve information for each concrete vehicle performing its corresponding task, and combines the position information and travel curve information to identify whether the position information and travel curve information of the corresponding concrete production vehicle are consistent. The second information identification unit is used to calculate the position information of other concrete vehicles in the group by combining the real-time position information of each concrete vehicle in the group with the obtained orientation and distance information of other concrete vehicles in the group. The unit also checks whether the position information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the real-time position information of the target concrete vehicle, and determines whether the positioning information of the target vehicle is accurate based on the result. The identification and confirmation module combines the identification results of the first information identification unit and the second information identification unit in the information analysis module to confirm the identity information of the concrete production vehicle through the S300 identification and confirmation mechanism.

[0013] The beneficial effects of this invention are:

[0014] This invention provides a method and system for identifying concrete production vehicles; this invention has the following advantages:

[0015] 1. This method proposes a way to determine the identity information of concrete vehicles by combining their location information and travel curve information. To ensure the accuracy of the concrete vehicle location information, a method is proposed to group concrete vehicles and determine the accurate location information of the target concrete vehicle by using other concrete vehicles in the group, so as to more accurately determine the identity information of the concrete vehicles.

[0016] 2. This method provides the conditions and methods for combining the accurate location information of the concrete vehicles in the group determination, the real-time positioning information of the concrete vehicles, and the corresponding travel curve information, which can adjust the concrete vehicles to travel on the corresponding travel curve in real time, so as to accurately determine the identity information of each concrete vehicle in real time.

[0017] 3. This method binds the travel information, location information, and identity information of concrete production vehicles. By using the travel and location information of concrete production vehicles to determine the accuracy of the identity information, the identity and location information of concrete production vehicles obtained by this method will be more accurate, which will help improve the management efficiency of concrete transportation and enhance the safety and transparency of the transportation process. Attached Figure Description

[0018] Figure 1 This is a flowchart of a concrete production vehicle identification method according to the present invention.

[0019] Figure 2 This is a schematic diagram of a concrete production vehicle identification system according to the present invention. Detailed Implementation

[0020] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings; it should be understood that the specific embodiments given herein are only for illustration and explanation of the present invention and cannot be used to limit the present invention.

[0021] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may have other embodiments and variations thereof. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0022] like Figure 1The flowchart shown is a method for identifying concrete production vehicles according to an embodiment of the present invention. The flowchart includes: Step S100, first identification mechanism: S101, establishing a three-dimensional model of the construction site terrain and extracting the position information of each point on the ground in the three-dimensional model; S102, vertically mapping the curved surface composed of the ground in the three-dimensional model to a plane, and then mapping the position information of each point in the curved surface to the plane; S103, acquiring the real-time task information and position information of each concrete vehicle, generating the travel curve information of each concrete vehicle performing the corresponding task on the plane according to the real-time task information, and combining the position information and travel curve information to identify the position information of the corresponding concrete production vehicle. Whether the information and travel curve information are consistent; Step S200, second identification mechanism: S201, group the concrete production vehicles, with each group having at least three concrete production vehicles; S202, install ultrasonic sensors of the same frequency in the same group, and each concrete production vehicle in the same group obtains the orientation and distance information of other concrete vehicles in the group by receiving ultrasonic waves of the corresponding frequency in real time; S203, calculate the position information of other concrete vehicles in the group by combining the real-time position information of each concrete vehicle in the group with the obtained orientation and distance information of other concrete vehicles in the group; if the calculated position information of the target concrete vehicle of other concrete vehicles in the group is consistent with the information of the travel curve information, the identification mechanism is as follows: If the real-time location information of the target concrete vehicle is the same, it proves that the positioning information of the target concrete vehicle is correct; if the location information calculated by other concrete vehicles in the group is different from the real-time location information of the target concrete vehicle, it proves that the positioning information of the target concrete vehicle is incorrect; Step S300, identification and confirmation mechanism: S301, if the location information and travel curve information of the corresponding concrete vehicle are consistent through identification in S100, and the positioning information of the corresponding concrete vehicle in the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be correct, then the identity information of the corresponding concrete vehicle is confirmed; S302, if the location of the corresponding concrete vehicle is identified through S100... If the information and travel curve information are consistent, but the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is incorrect, then the location information of the target concrete vehicle determined by other concrete vehicles in the group is taken as the correct location information. The obtained correct location information of the target concrete vehicle is then combined with the travel curve of the target concrete vehicle in S100. If the repositioned target concrete vehicle location information and travel curve information are consistent, then the identity information of the target concrete vehicle is determined. If the repositioned target concrete vehicle location information and travel curve information are inconsistent, then the corresponding target concrete vehicle is reminded to travel on the corresponding travel curve.S303: If the location information and travel curve information of the corresponding concrete vehicle identified through S100 are inconsistent, but the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be correct, then the concrete vehicle in S100 is reminded to travel on the corresponding travel curve to facilitate identity verification. S304: If the location information and travel curve information of the corresponding concrete vehicle identified through S100 are inconsistent, and the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be incorrect, then the location information of the target concrete vehicle determined by other concrete vehicles in the group is taken as the correct location information, and the correct location information of the target concrete vehicle is recombined with the travel curve of the target concrete vehicle in S100. If the repositioned location information and travel curve information of the target concrete vehicle are consistent, then the identity information of the target concrete vehicle is determined. If the repositioned location information and travel curve information of the target concrete vehicle are inconsistent, then the corresponding target concrete vehicle is reminded to travel on the corresponding travel curve to facilitate identity verification.

[0023] In step S100, a 3D model of the construction site terrain is created using AutoCAD Civil 3D. The surface formed by the 3D model is the surface formed by the construction site ground. While acquiring the real-time task and location information of each concrete truck, it is also necessary to obtain the equipment information of the concrete trucks, including equipment number information and set coding information. The set coding information refers to the number manually assigned to each concrete production vehicle, used to identify the identity of each concrete production vehicle. Generating the travel curve information of each concrete truck performing its corresponding task on the plane based on the real-time task information means: generating the travel information of each concrete truck based on the real-time location information, task information, and construction site terrain, and mapping the travel information onto the plane to generate the travel curve information of each concrete truck; each concrete truck corresponds to one travel path. Curve information; combining location information and travel curve information to identify whether the location information and travel curve information of the corresponding concrete production vehicle are consistent refers to determining whether the vertical distance from the location information of the corresponding concrete vehicle to the travel curve is greater than 1 meter. If it is greater than 1 meter, it proves that they are inconsistent; if it is not greater than 1 meter, it proves that they are consistent. The travel curve information includes: arbitrarily selecting one direction as the x-axis on the mapped plane and the direction perpendicular to the x-axis as the y-axis to construct a Cartesian coordinate system; then the travel curve information is based on the plane composed of the x and y axes, and is the path that the concrete vehicle travels in the plane to perform its task. It should be noted that the positioning system used in this invention is differential GPS positioning, with a positioning error of about 1 meter. Therefore, the vertical distance threshold from the location information of the concrete vehicle to the travel curve selected in this invention is also 1 meter.

[0024] In step S200, the method further includes: installing ultrasonic sensors of different frequencies in different groups, with each concrete truck in a group only recognizing and responding to ultrasonic information of the same frequency as itself; obtaining the azimuth and distance information of other concrete trucks in the group refers to: calculating the distance information between the target concrete truck and other concrete trucks based on the time of sending ultrasonic information to other concrete trucks in the group and receiving corresponding feedback information, according to the time and half of the ultrasonic propagation speed; determining the azimuth information of other concrete trucks relative to the target truck based on the received ultrasonic reflection angle; combining the real-time position information of each concrete truck in the group with the obtained azimuth and distance information of other concrete trucks in the group refers to: calculating the position information of other concrete trucks in the group according to spherical geometry, assuming the latitude and longitude information of the target concrete truck is (μ1, λ1), and the azimuth angle and distance of other concrete trucks relative to the target truck are θ and d respectively, setting the latitude and longitude information of other concrete trucks as (μ2, λ2); wherein, the formula for calculating the longitude information μ2 is:

[0025] Where μ1 represents the longitude information of the target concrete vehicle, and θ rad λ1 represents the azimuth angle θ in radians, λ1 represents the dimensional information of the target concrete vehicle in radians, and R represents the Earth's radius.

[0026] The formula for calculating the dimensional information λ² is:

[0027] Where λ1 represents the dimensional information of the target concrete vehicle, and θ rad R is the azimuth angle θ in radians, and R is the Earth's radius.

[0028] In the above embodiments, specifically, it further includes: if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the location information obtained in real time by the target concrete vehicle, it includes: if the distance between the location information of the target concrete vehicle calculated by other concrete vehicles in the same group and the location information obtained in real time by the target concrete vehicle is less than 1 meter, then it is considered that the location information of the target concrete vehicle calculated by other concrete vehicles is the same as the location information obtained in real time by the target concrete vehicle; if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is not the same as the location information obtained in real time by the target concrete vehicle, it includes: if the distance between the location information of the target concrete vehicle calculated by other concrete vehicles in the same group and the location information obtained in real time by the target concrete vehicle is greater than or equal to 1 meter, then it is considered that the location information of the target concrete vehicle calculated by other concrete vehicles is not the same as the location information obtained in real time by the target concrete vehicle.

[0029] In step S300, in S303, if the location information and travel curve information of the corresponding concrete vehicle are inconsistent as identified by S100, but the location information of the corresponding concrete vehicle is correctly determined in the corresponding concrete vehicle group in S200, then the concrete vehicle in S100 is reminded to travel on the corresponding travel curve so as to determine the identity information of the concrete vehicle by the judgment criteria in S301; in S304, if the location information and travel curve information of the repositioned target concrete vehicle are inconsistent, then the target concrete vehicle is reminded to travel on the corresponding travel curve so as to determine the identity information of the concrete vehicle by the judgment criteria in S301.

[0030] like Figure 2 The diagram shows a concrete production vehicle identification system according to the present invention. The system includes an information acquisition module S400, an information analysis module S500, and an identification confirmation module S600. The information acquisition module S400 is used to acquire information including: construction site terrain information, real-time location information of all concrete production vehicles, location information of all concrete production vehicles, and location and distance information of target vehicles in the same group for other concrete production vehicles. The acquired information is then transmitted to the information analysis module S500. The information analysis module S500 includes a first information identification unit S501 and a second information identification unit S502. The first information identification unit S501 is used to establish a three-dimensional model of the construction site terrain based on the acquired construction site terrain information, and to vertically map the curved surface of the ground in the three-dimensional model to a plane. Simultaneously, it is used to identify concrete production vehicles based on their real-time location information. The task information generates travel curve information of each concrete vehicle performing the corresponding task on the plane, and combines the position information and travel curve information to identify whether the position information and travel curve information of the corresponding concrete production vehicle are consistent; the second information identification unit S502 is used to calculate the position information of other concrete vehicles in the group by combining the real-time position information of each concrete vehicle in the group with the obtained orientation and distance information of other concrete vehicles in the group; and to determine whether the position information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the real-time position information of the target concrete vehicle, and to determine whether the positioning information of the target vehicle is accurate based on the result; the identification confirmation module S600 is used to combine the identification results of the first information identification unit and the second information identification unit in the information analysis module, and to confirm the identity information of the concrete production vehicle through the identification confirmation mechanism of S300.

Claims

1. A method for identifying concrete production vehicles, characterized in that, The method includes: S100 First Identification Mechanism: S101, Establish a three-dimensional model of the construction site terrain and extract the position information of each point on the ground in the three-dimensional model; S102, Vertically map the curved surface composed of the ground in the three-dimensional model to a plane, and then map the position information of each point on the curved surface to the plane; S103, Obtain the real-time task information and position information of each concrete vehicle, generate the travel curve information of each concrete vehicle performing the corresponding task on the plane according to the real-time task information, combine the position information and travel curve information, and identify whether the position information and travel curve information of the corresponding concrete production vehicle are consistent; S200 Second Identification Mechanism: S201, group concrete production vehicles, with each group containing at least three vehicles; S202, install ultrasonic sensors of the same frequency in the same group, allowing each concrete production vehicle in the same group to obtain the location and distance information of other concrete vehicles in the group by receiving ultrasonic waves of the corresponding frequency in real time; S203, calculate the location information of other concrete vehicles in the group by combining the real-time location information of each concrete vehicle in the group with the obtained location and distance information of other concrete vehicles in the group; if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the real-time location information obtained by the target concrete vehicle, then the positioning information of the target concrete vehicle is correct; if the location information of the target concrete vehicle calculated by other concrete vehicles in the group is different from the real-time location information obtained by the target concrete vehicle, then the positioning information of the target concrete vehicle is incorrect. S300 Identification and Confirmation Mechanism: S301, If ​​the location information and travel curve information of the corresponding concrete vehicle obtained through S100 are consistent, and the location information of the corresponding concrete vehicle in the corresponding concrete vehicle group in S200 is correctly determined, then the identity information of the corresponding concrete vehicle is confirmed; S302, If the location information and travel curve information of the corresponding concrete vehicle obtained through S100 are consistent, but the location information of the corresponding concrete vehicle in the corresponding concrete vehicle group in S200 is incorrect, then the location information of the target concrete vehicle determined by other concrete vehicles in the group is taken as the correct location information, and the correct location information of the target concrete vehicle is recombined with the travel curve of the target concrete vehicle in S100; if the repositioned target concrete vehicle location information and travel curve information are consistent, then the identity information of the target concrete vehicle is confirmed; if the repositioned target concrete vehicle location information and travel curve information are inconsistent, then the corresponding target concrete vehicle is reminded to travel on the corresponding travel curve; S303, If the location information and travel curve information of the target concrete vehicle obtained through S100 are consistent, then the identity information of the target concrete vehicle is confirmed; if the repositioned target concrete vehicle location information and travel curve information are inconsistent, then the corresponding target concrete vehicle is reminded to travel on the corresponding travel curve; S303, If the location information and travel curve information of the target concrete vehicle obtained through S100 are consistent, then the identity information of the target concrete vehicle is confirmed; if the location information and travel curve information of the target concrete vehicle are inconsistent, then the target concrete vehicle is reminded to travel on the corresponding travel curve; If the location information and travel curve information of the corresponding concrete vehicle are inconsistent, but the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be correct, then the concrete vehicle in S100 is reminded to drive on the corresponding travel curve to facilitate identity verification; S304, if the location information and travel curve information of the corresponding concrete vehicle are inconsistent as identified by S100, and the location information of the corresponding concrete vehicle in the group to which it belongs in S200 is determined to be incorrect, then the location information of the target concrete vehicle determined by other concrete vehicles in the group is taken as the correct location information, and the correct location information of the target concrete vehicle is recombined with the travel curve of the target concrete vehicle in S100; if the repositioned location information and travel curve information of the target concrete vehicle are consistent, then the identity information of the target concrete vehicle is determined; if the repositioned location information and travel curve information of the target concrete vehicle are inconsistent, then the corresponding target concrete vehicle is reminded to drive on the corresponding travel curve to facilitate identity verification.

2. The method for identifying concrete production vehicles according to claim 1, characterized in that, The creation of the three-dimensional model of the construction site terrain includes: using AutoCAD Civil The process involves creating a 3D model of the construction site terrain, with the surface formed by the 3D model serving as the surface of the construction site ground. Acquiring real-time task and location information for each concrete vehicle includes obtaining equipment information for the concrete vehicles, including equipment number and set coding information. Generating travel curve information for each concrete vehicle's corresponding task on the plane based on the real-time task information includes generating travel information for each concrete vehicle based on its real-time location, task information, and the construction site terrain, and mapping this travel information onto the plane to generate travel curve information for each concrete vehicle. Each concrete vehicle corresponds to one travel curve. Combining the location information and travel curve information to identify whether the location information and travel curve information of the corresponding concrete production vehicle are consistent includes determining whether the vertical distance from the location information of the corresponding concrete vehicle to the travel curve is greater than 1 meter. If it is greater than 1 meter, it indicates inconsistency; if it is not greater than 1 meter, it indicates consistency. The travel curve information includes: arbitrarily selecting one direction as the x-axis and the direction perpendicular to the x-axis as the y-axis on the mapped plane to create a Cartesian coordinate system; the travel curve information is based on the plane formed by the x and y axes, showing the path the concrete vehicle travels on the plane to perform its task.

3. The method for identifying concrete production vehicles according to claim 1, characterized in that, The installation of ultrasonic sensors of the same frequency in the same group includes: installing ultrasonic sensors of different frequencies in different groups, with each concrete vehicle in each group only recognizing and responding to ultrasonic information of the same frequency as itself; the acquisition of the azimuth and distance information of other concrete vehicles in the group includes: calculating the distance information between the target concrete vehicle and other concrete vehicles based on the time of sending ultrasonic information to other concrete vehicles in the group and receiving corresponding feedback information, according to the time and half of the ultrasonic propagation speed; determining the azimuth information of other concrete vehicles relative to the target vehicle based on the received ultrasonic reflection angle; the combination of the real-time position information of each concrete vehicle in the group with the acquired azimuth and distance information of other concrete vehicles in the group includes: the method for calculating the position information of other concrete vehicles in the group according to spherical geometry is as follows: assuming the latitude and longitude information of the target concrete vehicle is (μ1, λ1), and the azimuth angle and distance of other concrete vehicles relative to the target vehicle are θ and d respectively, the latitude and longitude information of other concrete vehicles is set as (μ2, λ2); where the formula for calculating the longitude information μ2 is: Where μ1 represents the longitude information of the target concrete vehicle, and θ rad λ1 represents the azimuth angle θ in radians, λ1 represents the dimensional information of the target concrete vehicle in radians, and R represents the Earth's radius. The formula for calculating the dimensional information λ² is: Where λ1 represents the dimensional information of the target concrete vehicle, and θ rad R is the azimuth angle θ in radians, and R is the Earth's radius.

4. The method for identifying concrete production vehicles according to claim 1, characterized in that, The statement that if the location information of the target concrete vehicle calculated by other concrete vehicles in the same group is the same as the real-time location information of the target concrete vehicle includes: if the distance between the location information of the target concrete vehicle calculated by other concrete vehicles in the same group and the real-time location information of the target concrete vehicle is less than 1 meter, then it is considered that the location information of the target concrete vehicle calculated by other concrete vehicles is the same as the real-time location information of the target concrete vehicle. The statement that if the location information of the target concrete vehicle calculated by other concrete vehicles in the same group is different from the real-time location information of the target concrete vehicle includes: if the distance between the location information of the target concrete vehicle calculated by other concrete vehicles in the same group and the real-time location information of the target concrete vehicle is greater than or equal to 1 meter, then it is considered that the location information of the target concrete vehicle calculated by other concrete vehicles is different from the real-time location information of the target concrete vehicle.

5. A concrete production vehicle identification system, characterized in that, The system is used to implement the concrete production vehicle identification method according to claim 1. The system includes: an information acquisition module, an information analysis module, and an identification confirmation module. The information acquisition module is used to acquire information including: construction site terrain information, real-time location information of all concrete production vehicles, location information of all concrete production vehicles, and location and distance information of target vehicles in the same group to other concrete production vehicles, and transmits the acquired information to the information analysis module. The information analysis module includes a first information identification unit and a second information identification unit. The first information identification unit is used to establish a three-dimensional model of the construction site terrain based on the acquired construction site terrain information, and vertically map the curved surface composed of the ground in the three-dimensional model to a plane; simultaneously, it is used to generate various information on the plane according to the real-time task information of the concrete production vehicles. The system retrieves the travel curve information of concrete vehicles performing corresponding tasks and combines the location information with the travel curve information to identify whether the location information and travel curve information of the corresponding concrete production vehicle are consistent. The second information identification unit is used to calculate the location information of other concrete vehicles in the group by combining the real-time location information of each concrete vehicle in the group with the acquired orientation and distance information of other concrete vehicles in the group. The system also checks whether the location information of the target concrete vehicle calculated by other concrete vehicles in the group is the same as the real-time location information acquired by the target concrete vehicle, and determines whether the positioning information of the target vehicle is accurate based on the result. The identification confirmation module combines the identification results of the first information identification unit and the second information identification unit in the information analysis module to confirm the identity information of the concrete production vehicle through the S300 identification confirmation mechanism.

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