A method and system for collecting road spectrum data

Abstract

The present invention discloses a method and system for collecting road spectrum data in the field of vehicle testing technology, aiming to solve the problems that the method and system for collecting road spectrum data are cumbersome and expensive, cannot collect data around the clock, and have poor alignment of different data. It includes: the method and system for collecting road spectrum data provided by the present application can be executed in a collector inside the vehicle, collect data as the vehicle goes, and has considerable convenience and flexibility, can realize all-weather collection operations, and the road spectrum data integrated based on the internal operation data of the vehicle does not require the deployment of additional collectors and personnel, and is economical and low-cost; based on the flexibility of processing inside the vehicle, the collection time corresponding to the internal operation data of the vehicle can be used to directly perform time alignment processing on the internal operation data of the vehicle, and then the obtained road spectrum data has a high degree of alignment when being analyzed, so it has considerable ease of analysis.

Description

Technical Field

[0001] The present invention relates to a method and system for collecting road spectrum data, and belongs to the technical field of vehicle testing. Background Art

[0002] The vehicle testing process generally involves installing a collector on the vehicle and having a dedicated person follow the vehicle to collect road data. The process is relatively cumbersome. The industry generally only collects road data on typical and key sections to analyze vehicle performance. It is difficult to collect road data for all sections and all periods of a long operating cycle. The representativeness of the road data obtained and the regularity of long-term parameters need to be further improved. In addition, the personnel costs and collection equipment costs are relatively expensive, and the convenience and flexibility of collection also need to be improved. At the same time, since various collectors are performed independently, it is not convenient to align the various road data in time.

[0003] Therefore, the existing road spectrum data collection methods and systems have the problems of being cumbersome and expensive, being unable to collect data in a long period around the clock, and having poor alignment of different data. Summary of the invention

[0004] The purpose of this application is to overcome the deficiencies in the prior art and to provide a method and system for collecting road spectrum data that is inexpensive, convenient, and capable of collecting road spectrum data around the clock and aligning different road spectrum data with each other.

[0005] In order to achieve the above objectives, this application is implemented by adopting the following technical solutions: In a first aspect, the present application provides a method for collecting road spectrum data, which is executed by a collector inside a vehicle, comprising: Obtain various vehicle internal operation data and their corresponding collection time; Time-aligning a plurality of vehicle internal operation data according to the acquisition time of the vehicle internal operation data; According to the preset time frame rate, the aligned vehicle internal operation data is divided into data segments by frame, and the acquisition time range of each data segment is marked; The data segments are sorted according to the collection time range, and the sorted multiple data segments are packaged into a data stream format file according to a set file size as the collected road spectrum data.

[0006] In some embodiments of the first aspect, The vehicle internal operation data includes mileage; In response to the mileage clear signal, a frame clear mark is inserted after the current data segment.

[0007] In some embodiments of the first aspect, the acquiring of a plurality of vehicle internal operation data and their corresponding acquisition times includes: Get the slope angle value message; Convert the slope angle value message into decimal; The converted slope angle value is converted into a first slope parameter according to an inverse tangent formula, and the first slope parameter is used as one of the vehicle internal operation data.

[0008] In some embodiments of the first aspect, the using the first slope parameter as one of the vehicle internal operation data includes: Continuously acquiring a satellite positioning signal corresponding to the first slope parameter at a collection time; obtaining a second slope parameter based on continuous satellite positioning signals; using the second slope parameter to review the first slope parameter; In response to the review error not exceeding the first threshold, retaining the current first slope parameter; In response to the review error exceeding the first threshold, acquiring a first slope parameter of the adjacent acquisition time, and obtaining a slope change trend according to the first slope parameter of the adjacent acquisition time; In response to the second slope parameter being more consistent with the slope change trend than the first slope parameter, the second slope parameter is used as a new first slope parameter; otherwise, the current first slope parameter is retained.

[0009] In some embodiments of the first aspect, In response to a lack of storage space for the data stream format file; The new data stream format file is cyclically overwritten with the oldest data stream format file.

[0010] In some embodiments of the first aspect, the vehicle internal operating data includes: power SOC value, fuel tank liquid level percentage, vehicle speed, subtotal mileage, total mileage, slope parameters, steering angle or altitude.

[0011] In a second aspect, the present application also provides a road spectrum data collection system, including a collector for executing the road spectrum data collection method described in any one of the first aspects.

[0012] In some embodiments of the second aspect, it also includes a vehicle-mounted communication terminal connected to the collector by electrical signals, and the vehicle-mounted communication terminal is used to remotely send the collected road spectrum data, and is also used to receive remote instructions to adjust the sending frequency of the road spectrum data, control the type of internal vehicle operating data and the packaging size of the data stream format file.

[0013] In some embodiments of the second aspect, a gateway is further included that is electrically connected to the collector, the gateway is signal-connected to multiple vehicle components through different data channels, and the collector obtains internal operating data of different vehicles across data channels through the gateway.

[0014] In some embodiments of the second aspect, the collector is a data recorder, a meter, a VCU, an ECU, a TCU, a gateway or a vehicle communication terminal.

[0015] Compared with the prior art, the present invention has the following beneficial effects: The road spectrum data collection method and system provided in the present application can be executed by a collector inside the vehicle, and can be collected as the vehicle goes. It has considerable convenience and flexibility, and can realize all-weather and all-time collection operations. In addition, the road spectrum data integrated based on the vehicle's internal operating data does not require the deployment of additional collectors and personnel, and is economical and inexpensive. Based on the flexibility of processing inside the vehicle, the vehicle's internal operating data can be directly time-aligned using the collection time corresponding to the vehicle's internal operating data. When the road spectrum data obtained is analyzed, each vehicle's internal operating data has a high degree of alignment, and therefore has considerable ease of analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the present application or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 is a flowchart of the steps of the method for collecting road spectrum data provided in this embodiment; Figure 2 is a schematic diagram of the structure of the road spectrum data collection system provided in this embodiment; Figure 3 is a schematic block diagram of the principles of the computer device provided in this embodiment; In the figure: 1. Collector; 2. Vehicle communication terminal; 3. Gateway. DETAILED DESCRIPTION

[0018] The technical solution of the present invention is described in detail below through the accompanying drawings and specific embodiments. It should be understood that the embodiments of the present application and the specific features in the embodiments are detailed descriptions of the technical solution of the present application, rather than limitations on the technical solution of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0019] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship. Embodiment 1

[0020] Figure 1 This is a flow chart of a method for collecting road spectrum data in the first embodiment of the present invention. This flow chart only shows the logical sequence of the method described in this embodiment. In other possible embodiments of the present invention, different methods may be used without conflict. Figure 1 The steps shown or described are accomplished in the order shown.

[0021] The method for collecting road spectrum data provided in this embodiment can be applied to vehicle terminals and can be executed by a collector 1 inside the vehicle. The collector 1 can be implemented by software and / or hardware. The device can be integrated in the vehicle terminal, such as: data recorder, vehicle control unit VCU, engine control unit ECU, telematics control unit TCU, gateway 3, vehicle communication terminal 2 or other similar devices. Figure 1 The method of this implementation specifically includes the following steps: Acquire a variety of vehicle internal operation data and their corresponding acquisition time; in general, the acquisition time is obtained from the same acquisition source as the vehicle internal operation data as much as possible to adapt to the delay differences of different vehicle components when outputting vehicle internal operation data.

[0022] According to the collection time of the internal operation data of the vehicle, time alignment is performed for various internal operation data of the vehicle. The traditional collection method has completed the packaging of various road spectrum data in each independent collector. Different packaging processes involve different processing of different original data, which will ignore, merge, disassemble or blur the time information. In addition, the timestamps of the data content obtained from different channels have differences in system calibration, operation errors and timestamp expression methods, which makes it difficult to align the various road spectrum data in time. Compared with the traditional collection method, the collection method provided in this embodiment is executed in the collector 1 inside the vehicle, so time alignment can be performed directly when the internal operation data of the vehicle is initially collected, and then it is uniformly packaged into the same data stream format file. After the data stream format file is unpacked on the analysis side, the internal operation data of different vehicles still remain aligned to meet the data analysis requirements.

[0023] According to the preset time frame rate, the aligned vehicle internal operation data is divided into data segments by frame, and the collection time range of each data segment is marked; this step is equivalent to performing the same time segmentation on different vehicle internal operation data, which is convenient for subsequent analysis of road spectrum data. Different vehicle internal operation data are analyzed within the same time frame based on time, and the relationship between each type of data is analyzed.

[0024] The data segments are sorted according to the collection time range, and the sorted multiple data segments are packaged into a data stream format file according to the set file size as the collected road spectrum data. The file size of the data stream format file is set for optimal storage and transmission convenience. Storing road spectrum data in a data stream format file will be easy to query and retrieve, and has good compatibility and scalability, making it easy to classify different vehicle internal operation data. Its feature of supporting real-time data processing also facilitates the analysis of vehicle characteristics for each frame.

[0025] In summary, the road spectrum data collection method provided in this embodiment can be executed by the collector 1 inside the vehicle, and the data can be collected whenever the vehicle is in use, which has considerable convenience and flexibility, and can realize all-weather collection operations. Moreover, the road spectrum data integrated based on the internal operation data of the vehicle does not require the deployment of additional collectors and personnel, and is economical and inexpensive. Based on the flexibility of processing inside the vehicle, the collection time corresponding to the internal operation data of the vehicle can be used to directly perform time alignment processing on the internal operation data of the vehicle. After that, when the road spectrum data obtained is analyzed, each internal operation data of the vehicle has a high degree of alignment, and therefore has considerable easy analysis. Embodiment 2

[0026] This embodiment provides a method for collecting road spectrum data. This embodiment is optimized on the basis of the first embodiment to improve the technical effect and refine the technical solution. For the contents not fully described in this embodiment, please refer to the first embodiment.

[0027] As one of the embodiments, the internal operating data of the vehicle includes mileage, which is divided into total mileage and subtotal mileage. Each time the mileage of the vehicle is reset to zero, it represents the beginning of a new subtotal mileage, so the acquired mileage will also be reset to zero. This is to facilitate the identification of the reset action when analyzing the road spectrum data, and also to improve the retrieval ease of the road spectrum data; in response to the mileage reset signal, a frame of reset mark is inserted after the current data segment; in this way, when analyzing the road spectrum data, the starting point of each subtotal mileage can be retrieved according to the reset mark.

[0028] The internal operating data of the vehicle includes slope parameters, but the slope parameters may not be directly obtained and need to be converted from the data of the slope sensor.

[0029] As one embodiment, a plurality of vehicle internal operation data and their corresponding collection time are obtained, including: Get the slope angle value message; Convert the slope angle value message into decimal; The converted slope angle value is converted into a first slope parameter according to an inverse tangent formula, and the first slope parameter is used as one of the vehicle internal operation data.

[0030] As the vehicle bumps, the first slope parameter may physically deviate in a short period of time. In order to improve the authenticity of the road spectrum data, as one embodiment, a satellite positioning signal corresponding to the first slope parameter at the collection time is continuously acquired; obtaining a second slope parameter based on continuous satellite positioning signals; Using the second slope parameter to check the first slope parameter; In response to the review error not exceeding the first threshold, retaining the current first slope parameter as vehicle internal operation data and finally packaging it into the road spectrum data; In response to the verification error exceeding the first threshold, the first slope parameter of the adjacent acquisition time is obtained, and the slope change trend is obtained according to the first slope parameter of the adjacent acquisition time; the purpose is to re-verify the first slope parameter in doubt in a short period of time by using the slope parameters in a longer period of time before and after; In response to the second slope parameter being more consistent with the slope change trend than the first slope parameter, the second slope parameter is used as the new first slope parameter; otherwise, the current first slope parameter is retained. That is, when the authenticity of the first slope parameter is in doubt, the data that best matches the slope parameter over a longer period of time is selected from the sensor acquisition and satellite positioning signals as the final first slope parameter at the current moment, and finally the route spectrum data is packaged to improve accuracy.

[0031] As one of the embodiments, after the above-mentioned judgment that best matches the slope change trend is made, an error mark is made in the corresponding data segment or an error mark is inserted after the data segment to provide a warning of data authenticity for subsequent analysis of the road spectrum data.

[0032] Since the road spectrum data collection method provided in this embodiment is executed by the collector 1 inside the vehicle, the collector 1 is mostly selected from existing components inside the vehicle, so the storage capacity of these components is limited. As one of the embodiments, in response to the lack of storage space for the data stream format file; the new data stream format file cyclically overwrites the oldest data stream format file.

[0033] As one of the embodiments, the internal operating data of the vehicle includes: SOC value of power, percentage of fuel tank liquid level, vehicle speed, subtotal mileage, total mileage, slope parameters, steering angle, altitude or other data; by packaging these data into road spectrum data, the performance of the vehicle under different road conditions can be analyzed.

[0034] In summary, the road spectrum data collection method provided in this embodiment, compared with the first embodiment, provides a slope parameter acquisition and correction scheme, a sub-mileage marking scheme, and a solution for dealing with limited storage space. It also introduces a variety of vehicle internal operation data. The road spectrum data finally provided has better accuracy and ease of analysis.

[0035] As one embodiment, the temporal frame rate should be no less than 1 frame per second.

[0036] As one embodiment, the mileage clearing action can be manually set on the meter to implement the clearing, and the meter sends a cleared signal to the collector 1 via a CAN message.

[0037] As one of the embodiments, .dat format is used as the data stream format, which has strong cross-platform applicability and helps to reduce the data space to store more data files. It can also be converted into CSV (table) or ASC (generic text) format for export.

[0038] In the later analysis, with time as the horizontal axis and the internal operation data of each vehicle as different vertical axes, a curve chart with time as the horizontal axis is made on the host computer according to different units and analytical sizes for simultaneous display, and other information stored in the collector 1 can be screened and displayed as needed. When the horizontal axis position is pulled to move the time period, the numerical change curve of the selected item can be synchronously observed to perform state analysis, judgment and comparative analysis. The display span can be scaled in the direction of the time axis to simultaneously browse the data curve in a longer time period, or to zoom in and analyze the state of the data curve in a shorter time period. Parameters that are within the target value range or meet the characteristic value can also be searched and selected, and directly jumped to the corresponding position, which is convenient for quickly finding the required data segment during data verification. For example, the start and end flags generated by mileage zeroing or the position where the subtotal mileage is zeroed are retrieved, and the corresponding real-time time value can be checked and recorded, and the span duration between several flags can be conveniently counted, which is conducive to road condition extraction and road spectrum and energy consumption analysis.

[0039] As one of the embodiments, when the volume of road spectrum data needs to be simplified, time and vehicle speed are used as a set of road spectrum data to obtain the rate of change of vehicle speed over time, and mileage and slope parameters are used as a set of road spectrum data to obtain the rate of change of slope over mileage.

[0040] Based on the road spectrum data, it is also possible to analyze the fixed parameters such as vehicle mass, cargo capacity, trailer weight, wind resistance, frontal area, accessory power, tire rolling radius, rolling resistance, braking efficiency, braking factor, moment of inertia, gear ratio of each gear of the gearbox, rear axle reduction ratio, efficiency map parameters of the motor or engine, universal characteristic parameters, battery charge and discharge rate, battery capacity and voltage range parameters, transmission torque and speed limit, transmission efficiency, moment of inertia, shifting strategy, road friction coefficient, etc. Embodiment 3

[0041] This embodiment provides a road spectrum data collection system. Figure 2 , including a collector 1, which is used to execute the method for collecting road spectrum data provided in embodiment 1 or 2, including: Obtain various vehicle internal operation data and their corresponding collection time; Time alignment of various vehicle internal operation data according to the collection time of vehicle internal operation data; According to the preset time frame rate, the aligned vehicle internal operation data is divided into data segments by frame, and the acquisition time range of each data segment is marked; The data segments are sorted according to the collection time range, and the sorted multiple data segments are packaged into a data stream format file according to the set file size as the collected road spectrum data.

[0042] The vehicle’s internal operating data includes mileage; In response to the mileage reset signal, a frame reset mark is inserted after the data segment corresponding to the mileage reset signal time.

[0043] Obtain various vehicle internal operation data and their corresponding collection time, including: Get the slope angle value message; Convert the slope angle value message into decimal; The converted slope angle value is converted into a first slope parameter according to an inverse tangent formula, and the first slope parameter is used as one of the vehicle internal operation data.

[0044] The first slope parameter is used as one of the vehicle internal operation data, including: Continuously acquiring a satellite positioning signal corresponding to the first slope parameter at a collection time; obtaining a second slope parameter based on continuous satellite positioning signals; Using the second slope parameter to check the first slope parameter; In response to the review error not exceeding the first threshold, retaining the current first slope parameter; In response to the review error exceeding the first threshold, acquiring a first slope parameter of the adjacent acquisition time, and obtaining a slope change trend according to the first slope parameter of the adjacent acquisition time; In response to the second slope parameter being more consistent with the slope change trend than the first slope parameter, the second slope parameter is used as a new first slope parameter; otherwise, the current first slope parameter is retained.

[0045] In response to a lack of storage space for the data stream format file; The new data stream format file is cyclically overwritten with the oldest data stream format file.

[0046] The vehicle's internal operating data includes: SOC value, fuel tank level percentage, vehicle speed, subtotal mileage, total mileage, slope parameters, steering angle or altitude.

[0047] The road spectrum data collection system also includes a vehicle-mounted communication terminal 2 electrically connected to the collector 1. The vehicle-mounted communication terminal 2 is used to remotely send the collected road spectrum data, and is also used to receive remote commands to adjust the sending frequency of the road spectrum data, control the type of internal vehicle operating data, and the packaging size of the data stream format file.

[0048] As one of the embodiments, the vehicle communication terminal 2 has the functions of uploading / downloading data and remote flashing and upgrading. It can upgrade all controller software as needed, realize data transmission on demand, flexibly adjust the types of collection of vehicle internal operation data and the transmission frequency of road spectrum data as needed, and has the ability to remotely upload CAN recorded data. For example, according to the first type of road spectrum data transmission, including slope parameters, if SOC value or fuel value or 100km fuel consumption value and other information are required, the new message protocol and sending program are downloaded to the collector 1 through the Tbox data download function, and the slope parameter can be replaced with the SOC value or a required parameter to ensure that the required parameter value can be sent within the effective number of bits of the frame. Similarly, the program and protocol can be updated by the same method to expand the types of collection of vehicle internal operation data. If high-precision data is required, the data sampling frequency needs to be increased, that is, the frequency with which collector 1 obtains the vehicle's internal operating data and the frequency with which the road spectrum data is sent can be increased. Higher acquisition and sending frequencies can be achieved by updating the relevant summary controller program, but the amount of data saved and sent will also double, and the data retention time will be shortened. Therefore, the frequency can be increased on key and typical sections, while other sections can operate as usual.

[0049] As one embodiment, the collector 1 includes a data recorder, a meter, a VCU, an ECU, a TCU, a gateway 3 or a vehicle communication terminal 2 As mentioned above, the collector 1 is an internal component of the vehicle and may have limited storage space. In order to facilitate rapid data extraction, the on-board communication terminal 2 obtains the prepared road spectrum data from the collector 1 and sends it to the remote server. The on-board communication terminal 2 can also receive remote instructions and programs, rewrite the system of the collector 1, change the sending frequency of the on-board communication terminal 2, and control the type of internal vehicle operating data and the packaging size of the data stream format file when the collector 1 executes the collection method, so as to adapt to the data requirements of different road sections and save traffic.

[0050] Some vehicles have multiple CAN channels for transmitting internal vehicle operating data. As one embodiment, the road spectrum data collection system also includes a gateway 3 electrically connected to the collector 1. The gateway 3 is connected to multiple vehicle component signals through different data channels. The collector 1 obtains internal operating data of different vehicles across data channels through the gateway 3.

[0051] Specifically, different CAN channels are connected to different pins of the gateway 3 for separate collection, and the gateway 3 then forwards the vehicle internal operation data of different CAN channels through the CAN channel connected to the collector 1. In this process, the CAN channel sources of different vehicle internal operation data can also be transmitted to the collector 1 as another type of vehicle internal operation data, which is convenient for later tracing.

[0052] As one of the embodiments, the collector 1 has a time calibration function, so that the recording time and the network time can be accurately calibrated through the host computer to maintain synchronization with other vehicle components. The collector 1's own time can be additionally recorded in the data segment as a check backup.

[0053] The road spectrum data collection method provided in Example 1 or 2 can be applied to the road spectrum data collection system provided in this embodiment, and has functional modules and beneficial effects corresponding to the execution method. The road spectrum data collection system provided in this embodiment has the same technical effects as Example 1 or 2, which will not be repeated here. Embodiment 4

[0054] This embodiment provides a computer device, including a processor and a memory connected to the processor, wherein a computer program is stored in the memory. When the computer program is executed by the processor, the steps of the method for collecting road spectrum data provided in Embodiment 1 or 2 are performed.

[0055] The computer device may be a server or an electronic terminal. As one embodiment, refer to Figure 3 , the computer device includes a processor, a memory, an input / output interface (Input / Output, referred to as I / O) and a communication interface. The processor, the memory and the input / output interface are connected through a system bus, and the communication interface is connected to the system bus through the input / output interface. The processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes a non-volatile storage medium and an internal memory. The non-volatile storage medium stores an operating system, a computer program and a database. The internal memory provides an environment for the operation of the operating system and the computer program in the non-volatile storage medium. The database of the computer device is used to store data acquired and generated in the method for collecting road spectrum data. The input / output interface of the computer device is used to exchange information between the processor and an external device. The communication interface of the computer device is used to communicate with an external terminal through a network connection. When the computer program is executed by the processor, the method for collecting road spectrum data provided in embodiment one or two is implemented.

[0056] Those skilled in the art will understand that Figure 3The structure shown in the figure is only a block diagram of a part of the structure related to the solution of the present application, and does not constitute a limitation on the computer device to which the solution of the present application is applied. The specific computer device may include more or fewer components than those shown in the figure, or combine certain components, or have a different arrangement of components.

[0057] The computer device provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, which will not be described in detail here. Embodiment 5

[0058] This embodiment provides a computer-readable storage medium on which a computer program is stored. When the program is executed by a processor, the steps of the method for collecting road spectrum data provided in Embodiment 1 or Embodiment 2 are implemented.

[0059] The computer-readable storage medium provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, and will not be described in detail here. Embodiment 6

[0060] This embodiment provides a computer program product on which a computer program is stored, and when the program is executed by a processor, the steps of the method for collecting road spectrum data provided in Embodiment 1 or Embodiment 2 are implemented. The computer program product provided in this embodiment can be transmitted, distributed and downloaded in the form of a signal via the Internet.

[0061] The computer program product provided in this embodiment has the same technical effects as those in Embodiment 1 or 2, and will not be described in detail here.

[0062] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, electronic semiconductor chip storage, etc.) containing computer-usable program codes.

[0063] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0064] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0065] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0066] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0067] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0068] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A method for collecting road spectrum data, characterized in that: Executed by the collector (1) inside the vehicle, include, Obtain various vehicle internal operation data and their corresponding collection time; Time-aligning a plurality of vehicle internal operation data according to the acquisition time of the vehicle internal operation data; According to the preset time frame rate, the aligned vehicle internal operation data is divided into data segments by frame, and the acquisition time range of each data segment is marked; The data segments are sorted according to the collection time range, and the sorted multiple data segments are packaged into a data stream format file according to a set file size as the collected road spectrum data.

2. The method for collecting road spectrum data according to claim 1 is characterized in that: The vehicle internal operation data includes mileage; In response to the mileage reset signal, a frame reset mark is inserted after the current data segment.

3. The method for collecting road spectrum data according to claim 1 is characterized in that: The acquisition of various vehicle internal operation data and their corresponding collection time, include, Get the slope angle value message; Convert the slope angle value message into decimal; The converted slope angle value is converted into a first slope parameter according to an inverse tangent formula, and the first slope parameter is used as one of the vehicle internal operation data.

4. The method for collecting road spectrum data according to claim 2 is characterized in that: The using the first slope parameter as one of the vehicle internal operation data includes: Continuously acquiring a satellite positioning signal corresponding to the first slope parameter at a collection time; obtaining a second slope parameter based on continuous satellite positioning signals; using the second slope parameter to review the first slope parameter; In response to the review error not exceeding the first threshold, retaining the current first slope parameter; In response to the review error exceeding the first threshold, acquiring a first slope parameter of the adjacent acquisition time, and obtaining a slope change trend according to the first slope parameter of the adjacent acquisition time; In response to the second slope parameter being more consistent with the slope change trend than the first slope parameter, the second slope parameter is used as a new first slope parameter; otherwise, the current first slope parameter is retained.

5. The method for collecting road spectrum data according to claim 1 is characterized in that: In response to a lack of storage space for the data stream format file; The new data stream format file is cyclically overwritten with the oldest data stream format file.

6. The method for collecting road spectrum data according to claim 1 is characterized in that: The vehicle internal operation data includes: power SOC value, fuel tank liquid level percentage, vehicle speed, subtotal mileage, total mileage, slope parameters, steering angle or altitude.

7. A road spectrum data collection system, characterized in that: It comprises a collector (1) for executing the method for collecting road spectrum data as described in any one of claims 1 to 6.

8. The road spectrum data collection system according to claim 7, characterized in that: It also includes a vehicle-mounted communication terminal (2) connected to the collector (1) by electrical signals, and the vehicle-mounted communication terminal (2) is used to remotely send the collected road spectrum data, and is also used to receive remote instructions to adjust the transmission frequency of the road spectrum data, control the type of internal vehicle operation data and the packaging size of the data stream format file.

9. The road spectrum data collection system according to claim 7, characterized in that: It also includes a gateway (3) connected to the collector (1) by electrical signals, the gateway (3) being connected to a plurality of vehicle component signals via different data channels, and the collector (1) acquiring internal operating data of different vehicles across data channels via the gateway (3).

10. The road spectrum data collection system according to claim 7, characterized in that: The collector (1) is a data recorder, a meter, a VCU, an ECU, a TCU, a gateway (3) or a vehicle-mounted communication terminal (2).

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