Road change identification method and device, and storage medium

Abstract

The invention discloses a road change identification method and device and a storage medium, and belongs to the technical field of traffic. The method comprises the steps of obtaining a first construction information set of a target area; the first construction information set comprises at least one piece of first road construction information, and each piece of first road construction information comprises a first road construction event and a road associated with the first road construction event; a second construction information set of the target area is acquired, the second construction information set comprises at least one piece of second road construction information, and each piece of second road construction information comprises a second road construction event and a road associated with the second road construction event; and determining road construction change information of the target area according to the first construction information set and the second construction information set. The speed of road change recognition can be increased, and the cost of road change recognition can be reduced.

Description

Technical Field

[0001] The present application belongs to the field of traffic technology, and in particular, relates to a road change recognition method, device and storage medium. Background Art

[0002] HD maps are electronic maps with high precision, richness, dimension and freshness, which directly affect the safety and accuracy of autonomous driving. Therefore, it is extremely important to update HD maps in a timely manner.

[0003] In the prior art, dedicated vehicles are usually used to periodically collect full-scale on-site images of roads, and then compare the road surface information in the on-site images with the data in the high-precision map to identify whether the road has changed. This method of discovering road changes depends on the collection cycle of dedicated vehicles, has poor timeliness, and is costly. Summary of the invention

[0004] The embodiments of the present application provide a road change recognition method, device and storage medium, which can solve the problems of poor timeliness and high cost of road change recognition.

[0005] In a first aspect, an embodiment of the present application provides a road change recognition method, the method comprising:

[0006] Acquire a first construction information set of a target area; the first construction information set includes at least one first road construction information, each of the first road construction information includes a first road construction event and a road associated with the first road construction event;

[0007] Acquire a second construction information set of the target area, wherein the second construction information set includes at least one second road construction information, and each second road construction information includes a second road construction event and a road associated with the second road construction event;

[0008] The road construction change information of the target area is determined according to the first construction information set and the second construction information set.

[0009] In a second aspect, an embodiment of the present application provides a road change recognition device, the device comprising:

[0010] A first acquisition module is used to acquire a first construction information set of a target area; the first construction information set includes at least one first road construction information, each of the first road construction information includes a first road construction event and a road associated with the first road construction event;

[0011] A second acquisition module is used to acquire a second construction information set of the target area, wherein the second construction information set includes at least one second road construction information, and each second road construction information includes a second road construction event and a road associated with the second road construction event;

[0012] The determination module is used to determine the road construction change information of the target area according to the first construction information set and the second construction information set.

[0013] In a third aspect, an embodiment of the present application provides a road change recognition device, the device comprising: a processor and a memory storing computer program instructions; when the processor executes the computer program instructions, the road change recognition method described in the first aspect is implemented.

[0014] In a fourth aspect, an embodiment of the present application provides a computer storage medium, on which computer program instructions are stored. When the computer program instructions are executed by a processor, the road change identification method described in the first aspect is implemented.

[0015] In a fifth aspect, an embodiment of the present application provides a computer program product. When instructions in the computer program product are executed by a processor of an electronic device, the electronic device executes the road change identification method as described in the first aspect.

[0016] In an embodiment of the present application, considering that road construction may change the pavement information of the road, the road construction change information of the target area can be determined by acquiring a first construction information set and a second construction information set of the target area, wherein the first construction information set includes at least one first road construction information, each first road construction information includes a first road construction event and its associated road; the second construction information set includes at least one second road construction information, each second road construction information includes a second road construction event and its associated road. In this way, compared with the prior art of periodically and fully collecting on-site pictures of the road by special vehicles to identify whether the road has changed, the embodiment of the present application can improve the rate of road change identification and reduce the cost of road change identification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0018] Figure 1 It is one of the flow charts of the road change identification method provided in the embodiment of the present application;

[0019] Figure 2a This is the second flowchart of the road change identification method provided in the embodiment of the present application;

[0020] Figure 2b This is the third flowchart of the road change identification method provided in the embodiment of the present application;

[0021] Figure 3 is a structural diagram of a road change identification device provided in an embodiment of the present application;

[0022] Figure 4 It is a structural diagram of a road change identification device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0023] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only intended to explain the present application, rather than to limit the present application. For those skilled in the art, the present application can be implemented without the need for some of these specific details. The following description of the embodiments is only to provide a better understanding of the present application by illustrating the examples of the present application.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "include..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0025] The road recognition method of the embodiment of the present application can be applied to an electronic map supplier, which can also be called a server providing an electronic map, a provider of an electronic map, or a provider of an electronic map, etc. In some embodiments of the present application, the electronic map can be a high-precision map.

[0026] The road change recognition method provided by the embodiment of the present application is described in detail below through some embodiments and their application scenarios in combination with the accompanying drawings.

[0027] See also Figure 1 , Figure 1This is one of the flow charts of the road change identification method provided in the embodiment of the present application.

[0028] like Figure 1 As shown, the road change recognition method may include the following steps:

[0029] Step 101: Acquire a first construction information set of a target area; the first construction information set includes at least one first road construction information, and each first road construction information includes a first road construction event and a road associated with the first road construction event.

[0030] Road construction may change the road surface information, where the road surface information may include but is not limited to at least one of the following: road lane lines, dividing lines, road width, ground arrows, physical barriers, etc. If the road surface information changes, it means that the road has changed, and it can be determined as a construction-changed road; if the road surface information does not change, it means that the road has not changed.

[0031] Based on this, the embodiment of the present application can determine the road construction information of the target area by acquiring a construction information set of the target area.

[0032] The target area may be any area within the coverage of the electronic map, and the target area may include at least one road. In some embodiments, the target area may be understood as a focus area or an area of ​​interest for road change identification, and may be pre-specified, such as: if the electronic map provider currently desires to identify road changes in city A, the target area may be determined as city A.

[0033] The construction information set of the target area may include at least one road construction information of the target area, and each road construction information includes a road construction event and its associated road.

[0034] In step 101, the first construction information set of the target area can be understood as the construction information set of the target area in the first time period. For the convenience of distinction, the road construction information included in the first construction information set is called the first road construction information, and the road construction events included in the first road construction information are called the first road construction events.

[0035] Step 102: Acquire a second construction information set of the target area, wherein the second construction information set includes at least one second road construction information, and each second road construction information includes a second road construction event and a road associated with the second road construction event.

[0036] The first construction information set in step 101 and the second construction information set in step 102 are construction information sets of the target area in different time periods. In step 102, the second construction information set of the target area can be understood as the construction information set of the target area in the second time period. For the convenience of distinction, the road construction information included in the second construction information set is called the second road construction information, and the road construction events included in the second road construction information are called the second road construction events.

[0037] The second time period may be before the first time period. In some embodiments, the first construction information set may be understood as the current construction information set of the target area, and the second construction information set may be understood as the historical construction information set of the target area.

[0038] Step 103: Determine road construction change information in the target area according to the first construction information set and the second construction information set.

[0039] In combination with the above content, it can be seen that the first construction information set records the road construction events and their associated roads in the target area in the first time period, and the second construction information set records the road construction events and their associated roads in the target area in the second time period. Therefore, the electronic map provider can compare the first construction information set and the second construction information set to determine the road construction change information in the target area.

[0040] In response to the road associated with the first road construction event in the first construction information set being different from the road associated with the second road construction event in the second construction information set, it is indicated that the road associated with the road construction event in the first construction information set has changed relative to the road associated with the road construction event in the second construction information set, and it can be determined that there is a construction-changed road in the target area. In this case, the road construction change information may include a construction-changed road; the construction-changed road is a road that is different from the road associated with the first road construction event and the road associated with the second road construction event.

[0041] If the first road is not included in the roads associated with the first road construction event in the first construction information set, but the first road is included in the roads associated with the second road construction event in the second construction information set, that is, the first road is not associated with the first road construction event but is associated with the second road construction event, it means that the first road is in a construction state in the second time period and in a non-construction state in the first time period, and the first road can be determined as a road that has completed construction.

[0042] If the roads associated with the first road construction event in the first construction information set include the second road, but the roads associated with the second road construction event in the second construction information set do not include the second road, that is, the second road is associated with the first road construction event but not the second road construction event, it means that the second road is in a non-construction state in the second time period and is in a construction state in the first time period, and it can be determined that the second road is the road where construction has started.

[0043] It can be understood that the first road and / or the second road can both be regarded as construction road changes. That is, the construction change road may include the first road and / or the second road, the first road is not associated with the first road construction event and the first road is associated with the second road construction event; the second road is associated with the first road construction event and the second road is not associated with the second road construction event.

[0044] In response to the road associated with the first road construction event in the first construction information set being the same as the road associated with the second road construction event in the second construction information set, it is indicated that the road associated with the road construction event in the first construction information set has not changed relative to the road associated with the road construction event in the second construction information set, and it can be determined that there is no construction-changed road in the target area. In this case, the road construction change information of the target area can indicate that there is no construction-changed road in the target area.

[0045] The road change identification method of the embodiment of the present application, taking into account that road construction may change the road surface information of the road, can determine the road construction change information of the target area by acquiring a first construction information set and a second construction information set of the target area, wherein the first construction information set includes at least one first road construction information, each first road construction information includes a first road construction event and its associated road; the second construction information set includes at least one second road construction information, each second road construction information includes a second road construction event and its associated road. In this way, compared with the prior art of periodically and fully collecting on-site pictures of the road by dedicated vehicles to identify whether the road has changed, the embodiment of the present application can improve the rate of road change identification and reduce the cost of road change identification.

[0046] The embodiments of the present application do not limit the method for obtaining the first construction information set and the second construction information set. Some feasible implementation methods are described below.

[0047] In some embodiments, obtaining a first set of construction information of a target area may include:

[0048] Acquire first target road information of the target area from the first information terminal;

[0049] The first target road information is processed to obtain the first construction information set.

[0050] That is, the first construction information set may be obtained by processing the first target road information acquired from the first information terminal for the target area.

[0051] In a specific implementation, the electronic map supplier may periodically obtain the target road information of the target area from the first information terminal. The first target road information of the target area may be understood as: the target road information of the target area obtained from the first information terminal in a first time period. The target road information of the target area obtained by the electronic map supplier from the first information terminal in a certain time period may reflect the current road information of the target area in this time period. Therefore, the target road information of the target area obtained by the electronic map supplier from the first information terminal may also be referred to as the dynamic road information of the target area.

[0052] In some optional implementations, the first information terminal may include but is not limited to at least one of a user terminal, a media information terminal, a service terminal providing an electronic map, a vehicle, and a traffic roadside unit.

[0053] The media information terminal may include but is not limited to information terminals such as traffic management departments, traffic channels, and public accounts that publish target road information.

[0054] It is worth noting that the server providing the electronic map in the first information terminal and the server providing the electronic map executing the embodiment of the present application are two different electronic map servers, that is, in the embodiment of the present application, the electronic map server a can obtain the target road information from the electronic map server b. In the embodiment of the present application, each electronic map server can periodically obtain the target road information through at least one of the user terminal, the media information terminal, the vehicle, and the traffic roadside unit, and then broadcast the target road information obtained by itself through its own broadcast interface, so that other electronic map suppliers receive the target road information obtained by them, thereby realizing the sharing of the target road information obtained between different electronic map suppliers.

[0055] The target road information of the embodiment of the present application may include at least one of the following information types: an image of a third road, road construction event information, vehicle trajectory data, and road sign information, where the third road is a road included in the target area.

[0056] It should be noted that the target road information obtained from different first information terminals may include the same or different information types, such as: the target road information obtained from the user terminal is an image of the third road, and the target road information obtained from the traffic roadside unit is the road sign information of the third road. In addition, the target road information obtained from the same information terminal in different time periods may also include the same or different information types, such as: the target road information obtained from the user terminal in time period 1 is an image of the third road, and the target road information obtained from the user terminal in time period 2 is road construction event information of the third road.

[0057] The processing of the image of the third road may be specifically performed as follows: determining whether there are road construction signs or construction equipment in the image of the third road. If there are road construction signs or construction equipment in the image of the third road, it can be determined that the third road is under construction, and then a first road construction information can be generated, and the road associated with the first road construction event included in the first road construction information is the third road. If there are no road construction signs or construction equipment in the image of the third road, it can be determined that the third road is not under construction.

[0058] The road construction event information of the third road can indicate whether there is a road construction event on the third road. Therefore, the processing of the road construction event information of the third road can be specifically performed as follows: parsing the indication content of the road construction event information of the third road. If the road construction event information of the third road indicates that there is a road construction event on the third road, it can be determined that the third road is under construction, and then a first road construction information can be generated, and the road associated with the first road construction event included in the first road construction information is the third road. If the road construction event information of the third road indicates that there is no road construction event on the third road, it can be determined that the third road is not under construction.

[0059] The vehicle trajectory data of the third road can indicate the vehicle driving trajectory on the third road. Therefore, the processing of the vehicle trajectory data of the third road can be specifically performed as follows: parsing the vehicle trajectory data of the third road. If the vehicle trajectory data of the third road indicates that there is no vehicle driving trajectory on the third road or the vehicle driving trajectory does not conform to the normal vehicle driving trajectory, such as bypassing a certain area of ​​the third road, it can be determined that the third road is under construction, and then a first road construction information can be generated. The road associated with the first road construction event included in the first road construction information is the third road. If the road construction event information of the third road indicates that the vehicle driving trajectories on the third road all conform to the normal vehicle driving trajectory, it can be determined that the third road is not under construction.

[0060] The road sign information of the third road may indicate the road signs set up on the third road. Therefore, the processing of the road sign information of the third road may be specifically performed as follows: parsing the road sign information of the third road. If the road sign information of the third road indicates that a road construction sign is set up on the third road, it can be determined that the third road is under construction, and then a first road construction information may be generated. The road associated with the first road construction event included in the first road construction information is the third road. If the road construction event information of the third road indicates that no road construction sign is set up on the third road, it can be determined that the third road is not under construction.

[0061] In specific implementation, after the first target road information of the target area is acquired from the first information terminal, the information of each information type in the first target road information can be processed in the above-mentioned corresponding manner to obtain the first construction information set.

[0062] By acquiring the first construction information set of the target area in the above manner, the method of acquiring the first target road information of the target area can be enriched, thereby improving the richness and accuracy of the first construction information set.

[0063] In some embodiments, obtaining the second construction information set of the target area may include:

[0064] Acquire second target road information of the target area from a second information terminal; process the second target road information to obtain the second construction information set; or

[0065] A second construction information set of the target area is extracted from the road construction status record set.

[0066] That is, the second construction information set is obtained by processing the second target road information obtained from the second information terminal for the target area, or the second construction information set is extracted from the road construction status record set for the target area.

[0067] The second construction information set is a historical construction information record of the target area, which records the historical road construction information of the target area. Therefore, the second construction information set can be obtained in a different manner from the first construction information set. In this embodiment, the second construction information set can be obtained by, but is not limited to, obtaining the second target road information or the road construction status record table obtained from the second information terminal.

[0068] Among them, the second information terminal may include at least one server that provides an electronic map. It should be noted that the server that provides the electronic map in the second information terminal and the server that provides the electronic map in the embodiment of the present application can be the same server that provides the electronic map, or can be different servers that provide the electronic map. It can be understood that for the electronic map provided by the second information terminal, due to the lag in updating the electronic map, the road information of the target area recorded in the electronic map is the historical road information of the target area. Therefore, the second target road information can be obtained from the electronic map provided by the second information terminal.

[0069] The second target road information and the first target road information both belong to target road information, therefore, the first target road information and the second target road information can both include at least one of the following information types: images of third roads, road construction event information, vehicle trajectory data, and road sign information. The third road is a road included in the target area, that is, the second target road information and the first target road information may include the same information type, but since both represent target road information of the target area in different time periods, it can be understood that the information content of the information included in the two may be different. Based on this, for the processing of the second target road information, please refer to the above-mentioned processing method for the first target road information, which will not be repeated here.

[0070] As can be seen from the foregoing, the electronic map supplier can periodically obtain the target road information of the target area from the first information terminal. In some embodiments, after obtaining the target road information of the target area from the first information terminal in each time period, the target road information obtained in this time period can be processed to obtain a construction information set of the target area in this time period, and after determining the road construction change information of the target area according to the construction information set of the target area in this time period, the construction information set of the target area in this time period is stored in the road construction status record set, so as to facilitate the extraction of the construction information set of the target area in the historical time period from the road construction status record set.

[0071] It is worth noting that before the second construction information set is extracted from the road construction status record set, since the road construction change information of the target area has not been determined based on the first construction information set at this time, the first construction information set has not yet been stored in the road construction status record set. Therefore, what is stored in the road construction status record set at this time is the construction information set of the target area in the historical time period. In order to improve the accuracy of determining the road construction change information of the target area, the second construction information set can be the latest construction information set stored in the road construction status record set.

[0072] In the embodiment of the present application, the road construction status record set may be a file or a table, but the specific form of the road construction status record table is not limited thereby.

[0073] In this embodiment, the second construction information set is obtained by obtaining the second target road information or the road construction status record table from the second information terminal. In this way, the method of obtaining the second construction information set can be enriched and the accuracy of obtaining the second construction information set can be ensured.

[0074] In some embodiments of the present application, after determining the road construction change information of the target area according to the first construction information set and the second construction information set, the method may further include:

[0075] Road change prompt information is output for the target area, where the road change prompt information is used to indicate the road construction change information.

[0076] In this embodiment, after the road change information of the target area is acquired, the road change prompt information of the target area may be output to indicate the road construction change information of the target area.

[0077] It should be noted that, for the construction change roads in the road construction change information, since they are determined by the electronic map provider based on the first construction information set and the second construction information set, there may not be real road changes, that is, their road surface information may not necessarily have real changes. Based on this, the aforementioned determined construction change roads can be called suspected change roads.

[0078] In this way, when the road construction change information in the target area includes construction change roads, relevant personnel can be reminded in time to verify whether there are real road changes on the construction change roads, and then the map update can be triggered in time when there are real road changes, thereby improving the map update rate.

[0079] In some embodiments of the present application, when the construction-changed road includes the first road, after determining the road construction change information of the target area according to the first construction information set and the second construction information set, the method further includes:

[0080] Acquire first current road surface information of the first road;

[0081] In response to the first current road surface information being different from the road surface information of the first road in a preset map, the road surface information of the first road in the preset map is adjusted to the first current road surface information.

[0082] In this embodiment, the first road is not associated with the first road construction event but is associated with the second road construction event, that is, the first road is a road that was previously in construction but is not currently in construction, and is a road that has completed construction.

[0083] Considering that road construction may change the road surface information, the first road that has finished construction is regarded as a suspected changed road. To verify whether the first road is a real changed road, the current road surface information of the first road can be obtained, and then the current road surface information of the first road is compared with the road surface information of the first road in the preset map.

[0084] If the current road surface information of the first road is the same as the road surface information in the preset map, it means that the road information of the first road has not changed, and the first road is not a real changed road.

[0085] If the current road surface information of the first road is different from the road surface information in the preset map, it means that the road information of the first road has changed, and the first road is a real changed road. In order to improve the accuracy of the map, the road surface information of the first road in the preset map can be updated, and the road surface information of the first road in the preset map can be adjusted to the current road surface information of the first road, so that the road surface information of the first road in the preset map conforms to the current state of the first road.

[0086] In specific implementation, in some implementation methods, a collection instruction for the first road can be sent to a special collection vehicle, triggering the special collection vehicle to travel to the first road to collect on-site pictures of the first road and obtain the current road surface information of the first road; in other implementation methods, relevant personnel can automatically go to collect on-site pictures of the first road and obtain the current road surface information of the first road, but it is not limited to this.

[0087] In this embodiment, for the first road that has completed construction, its current road surface information can be compared with its road surface information in the preset map, and the road surface information of the first road in the preset map can be updated if the two are different, thereby improving the map update efficiency and map accuracy.

[0088] In some other embodiments, when the construction change road includes the second road, after determining the road construction change information of the target area according to the first construction information set and the second construction information set, the method further includes:

[0089] Acquire the construction status of the second road;

[0090] When the construction status is that the construction is completed, obtaining second current road surface information of the second road;

[0091] In response to the second current road information being different from the road information of the first road in a preset map, the road information of the second road in the preset map is adjusted to the second current road information.

[0092] In this embodiment, the second road is associated with the first road construction event but not with the second road construction event, that is, the second road was not under construction before but is under construction now, and is a road that has started construction. Considering that road construction may change the road surface information, the second road that has started construction can be regarded as a suspected changed road.

[0093] Since the second road is currently under construction, it is not clear whether its road surface information will change. Before verifying whether the second road is a truly changed road, the construction status of the second road is first monitored.

[0094] When it is monitored that the construction status of the second road has changed to completion of construction, that is, when the second road has changed to a road where construction has ended, it is verified whether the second road is a real changed road. At this time, the method of verifying whether the second road is a real changed road is the same as the method of verifying whether the first road is a real changed road. For details, please refer to the relevant description above and will not be repeated here.

[0095] In this embodiment, for the second road that has started construction, you can first wait for its construction status to switch to construction completion, then check whether the second road is a real changed road, and if it is a real road change, update the road surface information of the second road in the preset map, which can improve the map update efficiency and map accuracy.

[0096] The embodiment of the present application does not limit the method for obtaining the construction status of the second road. In some embodiments, the construction status of the second road can be obtained by user monitoring. In other embodiments, obtaining the construction status of the second road may include:

[0097] Acquire a third construction information set of the target area; the third construction information set includes at least one third road construction information, each of the third road construction information includes a third road construction event and a road associated with the third road construction event; wherein the third construction information set is acquired at a time later than the first construction information set;

[0098] When the second road is not associated with the third road construction event, the construction status of the second road is determined as completed.

[0099] The third construction information set of the target area can be understood as the construction information set of the target area in the third time period, and the third time period is located after the first time period. The third construction information set can be understood as the next construction information set of the first construction information set. The acquisition method of the third construction information set can be the same as the acquisition method of the first construction information set. For details, please refer to the above-mentioned related description, which will not be repeated here.

[0100] In specific implementation, after the second road is determined as a suspected changed road, the construction information set of the target area may continue to be acquired, and then the construction status of the second road may be determined by parsing the newly acquired construction information set.

[0101] In specific implementation, the construction status of the second road may be determined by determining whether the roads associated with the third road construction event in the third construction information set include the second road.

[0102] If the roads associated with the third road construction event in the third construction information set do not include the second road, that is, the second road is not associated with the third road construction event in the third construction information set, it means that the construction of the second road has been completed. The construction status of the second road can be determined as completed, and then it can be verified whether the second road is a real changed road.

[0103] If the roads associated with the third road construction event in the third construction information set include the second road, that is, the second road is associated with the third road construction event in the third construction information set, it means that the second road is still under construction. In this case, the construction information set of the next target area can be obtained until the roads associated with the road construction events in the new target area obtained do not include the second road. In this case, the construction status of the second road can be determined as completed, and then it can be verified whether the second road is a truly changed road.

[0104] In this embodiment, the construction status of the second road can be monitored by continuing to obtain a set of construction information of the target area. In this way, there is no need for the user to go to the second road to monitor the construction status of the second road on site, which can improve the efficiency of obtaining the construction status of the second road and reduce the cost of obtaining the construction status of the second road.

[0105] It should be noted that the various optional implementation modes introduced in the embodiments of the present application can be implemented in combination with each other or separately if they do not conflict with each other, and the embodiments of the present application are not limited to this.

[0106] For ease of understanding, a specific embodiment is used for example:

[0107] like Figure 2a As shown, the road change recognition method of the embodiment of the present application may include the following steps:

[0108] Step 201, obtaining dynamic road information (ie, the target road information obtained from the first information terminal as mentioned above).

[0109] Step 202: screening road construction events.

[0110] Step 203: determine the road associated with the road construction event.

[0111] Step 204, recording the current construction information set (ie, the aforementioned first construction information set).

[0112] Step 205: Differentiate the current construction information set from the latest construction information set in the road construction status record set to find the first road that was previously in the construction state but is not in the construction state now.

[0113] Step 206: outputting road change prompt information to indicate that the first road is a suspected changed road.

[0114] Step 207: store the current construction information set into the road construction status record set.

[0115] Step 208, confirming whether the first road has changed by manual verification or other means for subsequent collection and updating.

[0116] In some embodiments, Figure 2b As shown, step 208 may include the following steps:

[0117] Step 2081, obtaining an on-site picture of the first road.

[0118] Step 2082, based on the on-site picture of the first road and the road surface information of the first road in the preset map, determine whether the road surface information such as the dividing line, ground arrows, and physical isolation of the first road has changed.

[0119] If yes, execute step 2083, otherwise end the process.

[0120] Step 2083, updating the road surface information of the first road in the preset map.

[0121] By adopting this embodiment, road change identification is performed through dynamic road information, and the acquisition of dynamic road information can be in minutes, so that road changes can be discovered faster at a lower cost.

[0122] Based on the road change recognition method provided in the above embodiment, the present application also provides a specific implementation of a road change recognition device. Please refer to the following embodiment.

[0123] See also Figure 3 , the road change recognition device provided in the embodiment of the present application may include:

[0124] A first acquisition module 301 is used to acquire a first construction information set of a target area; the first construction information set includes at least one first road construction information, each of which includes a first road construction event and a road associated with the first road construction event;

[0125] A second acquisition module 302 is used to acquire a second construction information set of the target area, wherein the second construction information set includes at least one second road construction information, and each second road construction information includes a second road construction event and a road associated with the second road construction event;

[0126] The determination module 303 is used to determine the road construction change information of the target area according to the first construction information set and the second construction information set. The road change identification device provided in the embodiment of the present application can implement each process implemented by the road change identification device in the method embodiment, and will not be described here to avoid repetition.

[0127] Figure 4 A schematic diagram of the hardware structure of road change recognition provided in an embodiment of the present application is shown.

[0128] The road change recognition device may include a processor 401 and a memory 402 storing computer program instructions.

[0129] Specifically, the processor 401 may include a central processing unit (CPU), or an application specific integrated circuit (ASIC), or may be configured to implement one or more integrated circuits of the embodiments of the present application.

[0130] Memory 402 may include a large capacity memory for data or instructions. By way of example and not limitation, memory 402 may include a hard disk drive (HDD), a floppy disk drive, a flash memory, an optical disk, a magneto-optical disk, a magnetic tape, or a universal serial bus (USB) drive or a combination of two or more of these. In appropriate cases, memory 402 may include a removable or non-removable (or fixed) medium. In appropriate cases, memory 402 may be inside or outside of an integrated gateway disaster recovery device. In a specific embodiment, memory 402 is a non-volatile solid-state memory.

[0131] The memory may include a read-only memory (ROM), a random access memory (RAM), a magnetic disk storage medium device, an optical storage medium device, a flash memory device, an electrical, optical or other physical / tangible memory storage device. Therefore, generally, the memory includes one or more tangible (non-transitory) computer-readable storage media (e.g., a memory device) encoded with software including computer-executable instructions, and when the software is executed (e.g., by one or more processors), it is operable to perform the operations described with reference to the method according to one aspect of the present disclosure.

[0132] The processor 401 implements any one of the road change recognition methods in the above embodiments by reading and executing computer program instructions stored in the memory 402 .

[0133] In one example, the road change recognition device may further include a communication interface 404 and a bus 410. Figure 4 As shown, the processor 401, the memory 402, and the communication interface 404 are connected via a bus 410 and communicate with each other.

[0134] The communication interface 404 is mainly used to implement communication between various modules, devices, units and / or equipment in the embodiments of the present application.

[0135] Bus 410 includes hardware, software or both, and the components of the road change identification device are coupled to each other. For example, but not limitation, the bus may include an accelerated graphics port (AGP) or other graphics bus, an enhanced industrial standard architecture (EISA) bus, a front-side bus (FSB), a hypertransport (HT) interconnection, an industrial standard architecture (ISA) bus, an infinite bandwidth interconnection, a low pin count (LPC) bus, a memory bus, a microchannel architecture (MCA) bus, a peripheral component interconnect (PCI) bus, a PCI-Express (PCI-X) bus, a serial advanced technology attachment (SATA) bus, a video electronics standard association local (VLB) bus or other suitable buses or a combination of two or more of these. In appropriate cases, bus 410 may include one or more buses. Although the present application embodiment describes and shows a specific bus, the present application considers any suitable bus or interconnection.

[0136] In addition, in combination with the road change recognition method in the above embodiment, the embodiment of the present application can provide a computer storage medium for implementation. The computer storage medium stores computer program instructions; when the computer program instructions are executed by a processor, any one of the road change recognition methods in the above embodiment is implemented.

[0137] It should be clear that the present application is not limited to the specific configuration and processing described above and shown in the figures. For the sake of simplicity, a detailed description of the known method is omitted here. In the above embodiments, several specific steps are described and shown as examples. However, the method process of the present application is not limited to the specific steps described and shown, and those skilled in the art can make various changes, modifications and additions, or change the order between the steps after understanding the spirit of the present application.

[0138] The functional blocks shown in the above-described block diagram can be implemented as hardware, software, firmware or a combination thereof. When implemented in hardware, it can be, for example, an electronic circuit, an application specific integrated circuit (ASIC), appropriate firmware, a plug-in, a function card, etc. When implemented in software, the elements of the present application are programs or code segments that are used to perform the required tasks. The program or code segment can be stored in a machine-readable medium, or transmitted on a transmission medium or a communication link by a data signal carried in a carrier wave. "Machine-readable medium" can include any medium capable of storing or transmitting information. Examples of machine-readable media include electronic circuits, semiconductor memory devices, ROM, flash memory, erasable ROM (EROM), floppy disks, CD-ROMs, optical disks, hard disks, optical fiber media, radio frequency (RF) links, etc. The code segment can be downloaded via a computer network such as the Internet, an intranet, etc.

[0139] It should also be noted that the exemplary embodiments mentioned in this application describe some methods or systems based on a series of steps or devices. However, this application is not limited to the order of the above steps, that is, the steps can be performed in the order mentioned in the embodiment, or in a different order from the embodiment, or several steps can be performed simultaneously.

[0140] Aspects of the present disclosure are described above with reference to the flowchart and / or block diagram of the method, device (system) and computer program product according to the embodiment of the present disclosure. It should be understood that each box in the flowchart and / or block diagram and the combination of each box 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, or other programmable data processing device to produce a machine so that these instructions executed by the processor of the computer or other programmable data processing device enable the implementation of the function / action specified in one or more boxes of the flowchart and / or block diagram. Such a processor can be, but is not limited to, a general-purpose processor, a special-purpose processor, a special application processor, or a field programmable logic circuit. It can also be understood that each box in the block diagram and / or flowchart and the combination of boxes in the block diagram and / or flowchart can also be implemented by dedicated hardware that performs a specified function or action, or can be implemented by a combination of dedicated hardware and computer instructions.

[0141] The above is only a specific implementation of the present application. Those skilled in the art can clearly understand that for the convenience and simplicity of description, the specific working processes of the systems, modules and units described above can refer to the corresponding processes in the aforementioned method embodiments, and will not be repeated here. It should be understood that the protection scope of the present application is not limited to this. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in this application, and these modifications or replacements should be included in the protection scope of this application.

Claims

1. A road change recognition method, characterized in that: include: Acquire a first construction information set of a target area; the first construction information set includes at least one first road construction information, each of the first road construction information includes a first road construction event and a road associated with the first road construction event; Acquire a second construction information set of the target area, wherein the second construction information set includes at least one second road construction information, and each second road construction information includes a second road construction event and a road associated with the second road construction event; The road construction change information of the target area is determined according to the first construction information set and the second construction information set.

2. The method according to claim 1, characterized in that The first construction information set is obtained by processing the first target road information obtained from the first information terminal for the target area; The second construction information set is obtained by processing the second target road information obtained from the second information terminal for the target area, or the second construction information set is extracted from a road construction status record set for the target area; wherein: The first information terminal includes at least one of a user terminal, a media information terminal, a service terminal providing an electronic map, a vehicle, and a traffic roadside unit; the second information terminal includes at least one service terminal providing an electronic map; The first target road information and the second target road information include at least one of the following information types: an image of a third road, road construction event information, vehicle trajectory data, and road sign information, and the third road is a road included in the target area.

3. The method according to claim 1, characterized in that The road construction change information includes construction change roads; The construction-changed road is a road with different associated first road construction events and associated second road construction events.

4. The method according to claim 3, characterized in that The construction-changed road includes a first road and / or a second road, the first road is not associated with the first road construction event and is associated with the second road construction event; the second road is associated with the first road construction event and is not associated with the second road construction event.

5. The method according to claim 4, characterized in that When the construction-changed road includes the first road, after determining the road construction change information of the target area according to the first construction information set and the second construction information set, the method further includes: Acquire first current road surface information of the first road; In response to the first current road surface information being different from the road surface information of the first road in a preset map, the road surface information of the first road in the preset map is adjusted to the first current road surface information.

6. The method according to claim 4, characterized in that When the construction change road includes the second road, after determining the road construction change information of the target area according to the first construction information set and the second construction information set, the method further includes: Acquire the construction status of the second road; When the construction status is that the construction is completed, obtaining second current road surface information of the second road; In response to the second current road information being different from the road information of the first road in a preset map, the road information of the second road in the preset map is adjusted to the second current road information.

7. The method according to claim 6, characterized in that The obtaining the construction status of the second road includes: Acquire a third construction information set of the target area; the third construction information set includes at least one third road construction information, each of the third road construction information includes a third road construction event and a road associated with the third road construction event; wherein the third construction information set is acquired at a time later than the first construction information set; When the second road is not associated with the third road construction event, the construction status of the second road is determined as completed.

8. The method according to any one of claims 1 to 7, characterized in that: After determining the road construction change information of the target area according to the first construction information set and the second construction information set, the method further includes: Road change prompt information is output for the target area, where the road change prompt information is used to indicate the road construction change information.

9. A road change recognition device, characterized in that: The device comprises: a processor and a memory storing computer program instructions; When the processor executes the computer program instructions, the road change identification method according to any one of claims 1 to 8 is implemented.

10. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores computer program instructions, and when the computer program instructions are executed by a processor, the road change recognition method according to any one of claims 1 to 8 is implemented.

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