Road inspection data transmission method and device

Abstract

The invention discloses a road inspection data transmission method. The method comprises the following steps: an inspection terminal requests an image transmission rule from a server; after the inspection terminal requests the image transmission rule from the server, the inspection terminal receives a first image transmission rule indicator sent by the server; the inspection terminal determines a first image transmission rule based on the first image transmission rule indicator; the inspection terminal segments the first road inspection image into a first image part and a second image part based on the first image transmission rule, and the inspection terminal segments the second road inspection image into a third image part and a fourth image part based on the first image transmission rule; the inspection terminal sends the first image part and the third image part to the server in the first frequency band; and after the inspection terminal determines that the server correctly receives the first image part and the third image part, the inspection terminal sends the second image part and the fourth image part to the server in the second frequency band.

Description

Technical Field

[0001] The present invention relates to the technical field of road inspection, and in particular to a method and device for road inspection data transmission. Background Art

[0002] With the acceleration of urbanization and the continuous increase in traffic flow, the health of roads is directly related to traffic safety and driving efficiency. Traditional road inspection methods have problems such as long inspection cycles, low efficiency, and inaccurate data, which are difficult to meet the needs of modern road management. Therefore, it is particularly important to develop a road health rapid inspection device that integrates video detection, intelligent recognition, Beidou positioning and wireless transmission.

[0003] Among them, the wireless transmission module is used to transmit the collected images, data and other information to the cloud server in real time. Since the road conditions involve information that is not convenient to be made public, how to keep the data confidential during the transmission process is an important issue. Summary of the invention

[0004] To achieve the above-mentioned purpose, the present invention provides a road inspection data transmission method and device. The method of the present invention generally includes the inspection terminal determining how to segment each frame of an image based on an image transmission rule, and determining how to mix and send multiple parts of each segmented frame of an image with multiple parts of other segmented frame of an image based on the image transmission rule, and on which frequency bands to send these segmented images, so that the confidentiality of image transmission is enhanced.

[0005] The present invention provides a road inspection data transmission method, the method comprising: a patrol terminal requests an image transmission rule from a server; after the patrol terminal requests the image transmission rule from the server, the patrol terminal receives a first image transmission rule indicator sent by the server; the patrol terminal determines a first image transmission rule based on the first image transmission rule indicator; the patrol terminal divides a first road inspection image into a first image part and a second image part based on the first image transmission rule, and the patrol terminal divides a second road inspection image into a third image part and a fourth image part based on the first image transmission rule; the patrol terminal sends the first image part and the third image part to the server in a first frequency band, wherein the first frequency band is determined by the first image transmission rule; after the patrol terminal determines that the server correctly receives the first image part and the third image part, the patrol terminal sends the second image part and the fourth image part to the server in a second frequency band, wherein the second frequency band is determined by the first image transmission rule.

[0006] In a preferred embodiment, the inspection terminal divides the first road inspection image into a first image portion and a second image portion based on the first image transmission rule, including: the inspection terminal cuts the first road inspection image into multiple rectangles based on the first image transmission rule; the inspection terminal divides a portion of the multiple rectangles into the first image portion, wherein the multiple rectangles in the first image portion are not adjacent to each other; and the inspection terminal divides the remaining portion of the multiple rectangles into the second image portion, wherein the multiple rectangles in the second image portion are not adjacent to each other.

[0007] In a preferred embodiment, there is a first predefined relationship between the first road inspection image and the second road inspection image, wherein the first predefined relationship is determined by a first image transmission rule.

[0008] In a preferred embodiment, the method also includes: after a predefined time, the inspection terminal requests the image transmission rule from the server again; after the inspection terminal requests the image transmission rule from the server again, the inspection terminal receives a second image transmission rule indicator sent by the server; the inspection terminal determines the second image transmission rule based on the second image transmission rule indicator; the inspection terminal divides the third road inspection image into a fifth image part and a sixth image part based on the second image transmission rule, and the inspection terminal divides the fourth road inspection image into a seventh image part and an eighth image part based on the second image transmission rule; the inspection terminal sends the fifth image part and the seventh image part to the server in a third frequency band, wherein the third frequency band is determined by the second image transmission rule; after the inspection terminal determines that the server correctly receives the fifth image part and the seventh image part, the inspection terminal sends the sixth image part and the eighth image part to the server in a fourth frequency band, wherein the fourth frequency band is determined by the second image transmission rule.

[0009] In a preferred embodiment, the inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, including: the inspection terminal cuts the third road inspection image into multiple rectangles based on the second image transmission rule, wherein the method of cutting the first road inspection image is different from the method of cutting the third road inspection image; the inspection terminal divides a portion of the multiple rectangles into a fifth image portion, wherein the multiple rectangles in the fifth image portion are not adjacent to each other; the inspection terminal divides the remaining portion of the multiple rectangles into a sixth image portion, wherein the multiple rectangles in the sixth image portion are not adjacent to each other.

[0010] The present invention also provides a road inspection data transmission device, which includes a module for performing the following operations: the inspection terminal requests an image transmission rule from a server; after the inspection terminal requests the image transmission rule from the server, the inspection terminal receives a first image transmission rule indicator sent by the server; the inspection terminal determines a first image transmission rule based on the first image transmission rule indicator; the inspection terminal divides a first road inspection image into a first image part and a second image part based on the first image transmission rule, and the inspection terminal divides a second road inspection image into a third image part and a fourth image part based on the first image transmission rule; the inspection terminal sends the first image part and the third image part to the server in a first frequency band, wherein the first frequency band is determined by the first image transmission rule; after the inspection terminal determines that the server correctly receives the first image part and the third image part, the inspection terminal sends the second image part and the fourth image part to the server in a second frequency band, wherein the second frequency band is determined by the first image transmission rule.

[0011] In a preferred embodiment, the inspection terminal divides the first road inspection image into a first image portion and a second image portion based on the first image transmission rule, including: the inspection terminal cuts the first road inspection image into multiple rectangles based on the first image transmission rule; the inspection terminal divides a portion of the multiple rectangles into the first image portion, wherein the multiple rectangles in the first image portion are not adjacent to each other; and the inspection terminal divides the remaining portion of the multiple rectangles into the second image portion, wherein the multiple rectangles in the second image portion are not adjacent to each other.

[0012] In a preferred embodiment, there is a first predefined relationship between the first road inspection image and the second road inspection image, wherein the first predefined relationship is determined by a first image transmission rule.

[0013] In a preferred embodiment, the device also includes a module for performing the following operations: after a predefined time, the inspection terminal requests the image transmission rule from the server again; after the inspection terminal requests the image transmission rule from the server again, the inspection terminal receives the second image transmission rule indicator sent by the server; the inspection terminal determines the second image transmission rule based on the second image transmission rule indicator; the inspection terminal divides the third road inspection image into a fifth image part and a sixth image part based on the second image transmission rule, and the inspection terminal divides the fourth road inspection image into a seventh image part and an eighth image part based on the second image transmission rule; the inspection terminal sends the fifth image part and the seventh image part to the server in a third frequency band, wherein the third frequency band is determined by the second image transmission rule; after the inspection terminal determines that the server correctly receives the fifth image part and the seventh image part, the inspection terminal sends the sixth image part and the eighth image part to the server in a fourth frequency band, wherein the fourth frequency band is determined by the second image transmission rule.

[0014] In a preferred embodiment, the inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, including: the inspection terminal cuts the third road inspection image into multiple rectangles based on the second image transmission rule, wherein the method of cutting the first road inspection image is different from the method of cutting the third road inspection image; the inspection terminal divides a portion of the multiple rectangles into a fifth image portion, wherein the multiple rectangles in the fifth image portion are not adjacent to each other; the inspection terminal divides the remaining portion of the multiple rectangles into a sixth image portion, wherein the multiple rectangles in the sixth image portion are not adjacent to each other.

[0015] Compared with the prior art, the method of the present invention has the following advantages and benefits: Although modern communication technologies (such as 5G or WiFi) have encryption functions themselves, some current technologies can effectively crack the encryption methods of 5G or WiFi. In order to improve data confidentiality, in addition to using the encryption function of 5G or WiFi sub-bands, the communication system is also required to provide additional encryption capabilities. The method of the present invention can reduce the consequences of information leakage and improve the confidentiality of images. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a method flow chart of an embodiment of the present invention.

[0017] Figure 2 FIG. 4 is a schematic diagram of a segmented image according to an embodiment of the present invention.

[0018] Figure 3 is a schematic diagram of a segmented image according to another embodiment of the present invention.

[0019] Figure 4 is a schematic diagram of a segmented image according to another embodiment of the present invention. DETAILED DESCRIPTION

[0020] The specific implementation modes of the present invention are described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific implementation modes.

[0021] As mentioned in the background technology, road conditions involve information that is not convenient for public disclosure, so the data needs to be kept confidential during transmission. Although modern communication technologies (such as 5G or WiFi) have encryption functions themselves, some current technologies can effectively crack the encryption methods that come with 5G or WiFi. In order to improve data confidentiality, in addition to using the encryption function of 5G or WiFi sub-bands, the communication system is also required to provide additional encryption capabilities.

[0022] Figure 1 1 is a method flow chart of an embodiment of the present invention. As shown in the figure, the method of the present invention includes the following steps:

[0023] Step 1: The inspection terminal requests the server for image transmission rules; in one example, the inspection terminal may be an electronic terminal with the capability of taking road photos and communication capabilities. Such electronic terminals have been widely used and will not be described in detail here.

[0024] Step 2: After the inspection terminal requests the image transmission rule from the server, the inspection terminal receives the first image transmission rule indicator sent by the server; in one example, the detailed image transmission rule may be pre-stored in the memory of the inspection terminal by an engineer after the inspection terminal leaves the factory and before the inspection terminal starts running, and each image transmission rule corresponds to an image transmission rule indicator, and the image transmission rule indicator may be, for example, a binary sequence, such as "00001", "00010", "00011", etc. Since the detailed image transmission rule is not transmitted during the transmission process, only the image transmission rule indicator is transmitted, it can be ensured that the detailed image transmission rule will not be eavesdropped by others.

[0025] Step 3: The inspection terminal determines the first image transmission rule based on the first image transmission rule indicator. In one example, an engineer will pre-store the correspondence between the image transmission rule indicator and the image transmission rule in the inspection terminal. The inspection terminal can determine the image transmission rule based on the image transmission rule indicator by looking up a table. For example, in one example, the first image transmission rule indicator can be "00001". The inspection terminal then searches the table for the first image transmission rule corresponding to "00001" based on the binary number of "00001". The first image transmission rule itself is a set of detailed image transmission rules.

[0026] Step 4: The inspection terminal divides the first road inspection image into a first image portion and a second image portion based on the first image transmission rule, and divides the second road inspection image into a third image portion and a fourth image portion based on the first image transmission rule; in an example, the example of dividing the first road inspection image into the first image portion and the second image portion can be seen in Figure 2 ,like Figure 2 As shown, the inspection terminal can divide a frame of image (ie, the first road inspection image) into 9 rectangles numbered 1-9 according to the first image transmission rule. Figure 2 In the example of , the first image transmission rule may record dividing the image into 9 rectangles; Figure 2 In the example of , the first image portion may be a rectangular set including five rectangles numbered 1, 3, 5, 7, and 9. Figure 2 It can be seen that the multiple rectangles included in the first image part are not adjacent to each other. In this example, if an unauthorized person monitors the signal sent by the inspection terminal, the unauthorized person can only obtain a rectangular set of five rectangles numbered 1, 3, 5, 7, and 9 at most, but the unauthorized person cannot obtain the entire image, thus greatly reducing the consequences of information leakage. In addition, the present invention has strong scalability. If it is desired to further improve confidentiality, the first road inspection image can be divided into three image parts. In this way, the rectangular set transmitted by the inspection terminal each time accounts for a lower proportion of the entire image, so that the confidentiality of the present invention is stronger. Figure 2 In the example of , the second image portion may be a rectangular set including four rectangles numbered 2, 4, 6, and 8. Figure 2 It can be seen from FIG. 1 that the multiple rectangles included in the second image portion are not adjacent to each other. In an example, the second road inspection image is divided into the third image portion and the fourth image portion. Figure 2 In another example, the road inspection image can also be segmented by an uneven segmentation method, for example, Figure 3In the example shown, the areas of rectangles numbered 1, 3, 4, 6, 7, and 9 are larger than those of rectangles numbered 2, 5, and 8. The advantage of segmenting the image in this way is that some inspection terminals always place key road locations in the middle of the image. Therefore, rectangles numbered in the middle of the image often have more important information. Therefore, by reducing the area of ​​these rectangles, the important information can be segmented into two rectangles, thereby reducing the consequences of information leakage.

[0027] Step 5: The inspection terminal sends the first image part and the third image part to the server in the first frequency band, wherein the first frequency band is determined by the first image transmission rule.

[0028] Step 6: After the inspection terminal determines that the server correctly receives the first image part and the third image part, the inspection terminal sends the second image part and the fourth image part to the server in the second frequency band, wherein the second frequency band is determined by the first image transmission rule. In one example, based on the operations of steps 5 and 6, a frame of image is sent to the server at different times (for example, in this embodiment, the first image part is sent to the server first, and the second image part is sent to the server later, and the sending interval between the two can be adjusted to be relatively large), so even if unauthorized personnel monitor the entire communication between the inspection terminal and the server for a period of time, if they do not understand the image transmission rules, they cannot know which frame of image is sent at which time, so they cannot "piece together" a complete image.

[0029] Example 2

[0030] In Embodiment 2, segmenting the first road inspection image into the first image portion and the second image portion by the inspection terminal based on the first image transmission rule includes:

[0031] The inspection terminal cuts the first road inspection image into a plurality of rectangles based on the first image transmission rule; Figure 2 In the example of , the first road inspection image is cut into 9 rectangles;

[0032] The inspection terminal divides a portion of the multiple rectangles into a first image portion, wherein the multiple rectangles in the first image portion are not adjacent to each other; in an example, Figure 2 For example, the first image portion may be a rectangular set including five rectangles numbered 1, 3, 5, 7, and 9;

[0033] The inspection terminal divides the remaining rectangles of the plurality of rectangles into a second image portion, wherein the plurality of rectangles in the second image portion are not adjacent to each other; in one example, Figure 2For example, the second image portion may be a rectangular set including four rectangles numbered 2, 4, 6, and 8. In Embodiment 2, it is stipulated that the multiple rectangles in the image portion are not adjacent to each other because if multiple adjacent rectangles are transmitted together, the amount of information contained in the incomplete image after the multiple rectangles are pieced together will be greatly increased. Figure 2 For example, if the second image part includes three rectangles numbered 2, 5, and 8, and the key information of the first road inspection image is located exactly in the middle of the first road inspection image, then as long as the unauthorized personnel obtains the three rectangles numbered 2, 5, and 8, the unauthorized personnel can basically know the key information of the frame image. At this time, the confidentiality of the relevant scheme is reduced.

[0034] Example 3

[0035] In Example 3, there is a first predefined relationship between the first road inspection image and the second road inspection image, wherein the first predefined relationship is determined by the first image transmission rule. In one example, the first predefined relationship may be the frame number of the road inspection image. For example, in one example, the frame number of the first road inspection image is t, and the frame number of the second road inspection image may be t+3; in Example 3, the image portion of the first road inspection image and the image portion of the second road inspection image are transmitted to the server at the same time. If the transmission strategy of the present invention is not understood, according to the general transmission logic, the unauthorized personnel cannot think that the image portions sent to the server at the same time come from different image frames. At this time, even if the unauthorized personnel obtain the inspection information sent by the inspection terminal, the unauthorized personnel cannot "piece together" the complete image. Therefore, the scheme of Example 3 can further increase the confidentiality of the method. Even if the unauthorized person understands the transmission strategy of the present invention, since the unauthorized person cannot obtain the first image transmission rule, the unauthorized person cannot know which image frames the image parts sent to the server at the same time belong to. In other words, due to the lack of the first image transmission rule, the unauthorized person cannot know the first predefined relationship between the first road inspection image and the second road inspection image, so the unauthorized person still cannot "piece together" the complete image.

[0036] Example 4

[0037] In order to further enhance the confidentiality of the method, the image transmission rules may be changed periodically. In Embodiment 4, the method further includes:

[0038] After the predefined time, the inspection terminal requests the server again for the image transmission rule; in one example, the predefined time may be 1 minute, 5 minutes, 10 minutes, 30 minutes, etc.;

[0039] After the inspection terminal requests the server for the image transmission rule again, the inspection terminal receives a second image transmission rule indicator sent by the server;

[0040] The inspection terminal determines the second image transmission rule based on the second image transmission rule indicator;

[0041] The inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, and divides the fourth road inspection image into a seventh image portion and an eighth image portion based on the second image transmission rule; in one example, the predefined relationship between the third road inspection image and the fourth road inspection image may be different from the first predefined relationship between the first road inspection image and the second road inspection image, and in one example, the frame number of the third road inspection image is t, and the frame number of the fourth road inspection image may be t+5;

[0042] The inspection terminal sends the fifth image part and the seventh image part to the server in a third frequency band, wherein the third frequency band is determined by the second image transmission rule;

[0043] After the inspection terminal determines that the server correctly receives the fifth image part and the seventh image part, the inspection terminal sends the sixth image part and the eighth image part to the server in the fourth frequency band, wherein the fourth frequency band is determined by the second image transmission rule.

[0044] Example 5

[0045] In Embodiment 5, segmenting the third road inspection image into the fifth image portion and the sixth image portion by the inspection terminal based on the second image transmission rule includes:

[0046] The inspection terminal cuts the third road inspection image into a plurality of rectangles based on the second image transmission rule, wherein the method of cutting the first road inspection image is different from the method of cutting the third road inspection image; in an example, the method of cutting the third road inspection image into a plurality of rectangles can be referred to Figure 4 ,like Figure 4 As shown, based on the second image transmission rule, the image can be divided into 12 rectangles, and the rectangles are numbered 1-12 respectively. It can be seen that the method of cutting the first road inspection image is different from the method of cutting the third road inspection image;

[0047] The inspection terminal divides a part of the multiple rectangles into a fifth image part, wherein the multiple rectangles in the fifth image part are not adjacent to each other; wherein the fifth image part can be Figure 4 The set of rectangles numbered 1, 3, 6, 8, 9, and 11;

[0048] The inspection terminal divides the remaining rectangles of the plurality of rectangles into a sixth image portion, wherein the plurality of rectangles in the sixth image portion are not adjacent to each other, wherein the sixth image portion may be Figure 4 The set of rectangles numbered 2, 4, 5, 7, 10, and 12.

[0049] The present invention provides a road inspection data transmission device, characterized in that the device includes a module for performing the following operations:

[0050] The inspection terminal requests the server for image transmission rules;

[0051] After the inspection terminal requests the image transmission rule from the server, the inspection terminal receives the first image transmission rule indicator sent by the server;

[0052] The inspection terminal determines the first image transmission rule based on the first image transmission rule indicator;

[0053] The inspection terminal divides the first road inspection image into a first image portion and a second image portion based on the first image transmission rule, and divides the second road inspection image into a third image portion and a fourth image portion based on the first image transmission rule;

[0054] The inspection terminal sends the first image part and the third image part to the server in a first frequency band, wherein the first frequency band is determined by a first image transmission rule;

[0055] After the inspection terminal determines that the server correctly receives the first image part and the third image part, the inspection terminal sends the second image part and the fourth image part to the server in the second frequency band, wherein the second frequency band is determined by the first image transmission rule.

[0056] In a preferred embodiment, segmenting the first road inspection image into the first image portion and the second image portion by the inspection terminal based on the first image transmission rule includes:

[0057] The inspection terminal cuts the first road inspection image into a plurality of rectangles based on the first image transmission rule;

[0058] The inspection terminal divides a part of the multiple rectangles into a first image part, wherein the multiple rectangles in the first image part are not adjacent to each other;

[0059] The inspection terminal divides the remaining rectangles of the multiple rectangles into a second image portion, wherein the multiple rectangles in the second image portion are not adjacent to each other.

[0060] In a preferred embodiment, there is a first predefined relationship between the first road inspection image and the second road inspection image, wherein the first predefined relationship is determined by a first image transmission rule.

[0061] In a preferred embodiment, the device further comprises a module for performing the following operations: after a predefined time, the inspection terminal again requests the server for the image transmission rule; after the inspection terminal again requests the server for the image transmission rule, the inspection terminal receives a second image transmission rule indicator sent by the server; the inspection terminal determines the second image transmission rule based on the second image transmission rule indicator; the inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, and the inspection terminal divides the fourth road inspection image into a seventh image portion and an eighth image portion based on the second image transmission rule;

[0062] The inspection terminal sends the fifth image part and the seventh image part to the server in the third frequency band, wherein the third frequency band is determined by the second image transmission rule; after the inspection terminal determines that the server correctly receives the fifth image part and the seventh image part, the inspection terminal sends the sixth image part and the eighth image part to the server in the fourth frequency band, wherein the fourth frequency band is determined by the second image transmission rule.

[0063] In a preferred embodiment, the inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, including: the inspection terminal cuts the third road inspection image into multiple rectangles based on the second image transmission rule, wherein the method of cutting the first road inspection image is different from the method of cutting the third road inspection image; the inspection terminal divides a portion of the multiple rectangles into a fifth image portion, wherein the multiple rectangles in the fifth image portion are not adjacent to each other; the inspection terminal divides the remaining portion of the multiple rectangles into a sixth image portion, wherein the multiple rectangles in the sixth image portion are not adjacent to each other.

[0064] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the appended claims of the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the appended claims, or the equivalent forms of such scope and boundaries.

Claims

1. A road inspection data transmission method, characterized in that: The method comprises: The inspection terminal requests the server for image transmission rules; After the inspection terminal requests the image transmission rule from the server, the inspection terminal receives a first image transmission rule indicator sent by the server; The inspection terminal determines a first image transmission rule based on the first image transmission rule indicator; The inspection terminal divides the first road inspection image into a first image portion and a second image portion based on the first image transmission rule, and the inspection terminal divides the second road inspection image into a third image portion and a fourth image portion based on the first image transmission rule; The inspection terminal sends the first image part and the third image part to the server in a first frequency band, wherein the first frequency band is determined by the first image transmission rule; After the inspection terminal determines that the server correctly receives the first image part and the third image part, the inspection terminal sends the second image part and the fourth image part to the server in a second frequency band, wherein the second frequency band is determined by the first image transmission rule.

2. The method according to claim 1, characterized in that The step of dividing the first road inspection image into a first image portion and a second image portion by the inspection terminal based on the first image transmission rule includes: The inspection terminal cuts the first road inspection image into a plurality of rectangles based on the first image transmission rule; The inspection terminal divides a part of the multiple rectangles into the first image part, wherein the multiple rectangles in the first image part are not adjacent to each other; The inspection terminal divides the remaining rectangles of the multiple rectangles into the second image part, wherein the multiple rectangles in the second image part are not adjacent to each other.

3. The method according to claim 2, characterized in that There is a first predefined relationship between the first road inspection image and the second road inspection image, wherein the first predefined relationship is determined by the first image transmission rule.

4. The method according to claim 3, characterized in that The method further comprises: After a predefined time, the inspection terminal requests the image transmission rule from the server again; After the inspection terminal requests the image transmission rule from the server again, the inspection terminal receives a second image transmission rule indicator sent by the server; The inspection terminal determines a second image transmission rule based on the second image transmission rule indicator; The inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, and divides the fourth road inspection image into a seventh image portion and an eighth image portion based on the second image transmission rule; The inspection terminal sends the fifth image part and the seventh image part to the server in a third frequency band, wherein the third frequency band is determined by the second image transmission rule; After the inspection terminal determines that the server correctly receives the fifth image part and the seventh image part, the inspection terminal sends the sixth image part and the eighth image part to the server in a fourth frequency band, wherein the fourth frequency band is determined by the second image transmission rule.

5. The method according to claim 4, characterized in that The step of dividing the third road inspection image into a fifth image portion and a sixth image portion by the inspection terminal based on the second image transmission rule includes: The inspection terminal cuts the third road inspection image into a plurality of rectangles based on the second image transmission rule, wherein the first road inspection image is cut in a different manner from the third road inspection image; The inspection terminal divides a part of the multiple rectangles into the fifth image part, wherein the multiple rectangles in the fifth image part are not adjacent to each other; The inspection terminal divides the remaining rectangles of the multiple rectangles into the sixth image part, wherein the multiple rectangles in the sixth image part are not adjacent to each other.

6. A road inspection data transmission device, characterized in that: The apparatus includes modules for performing the following operations: The inspection terminal requests the server for image transmission rules; After the inspection terminal requests the image transmission rule from the server, the inspection terminal receives a first image transmission rule indicator sent by the server; The inspection terminal determines a first image transmission rule based on the first image transmission rule indicator; The inspection terminal divides the first road inspection image into a first image portion and a second image portion based on the first image transmission rule, and the inspection terminal divides the second road inspection image into a third image portion and a fourth image portion based on the first image transmission rule; The inspection terminal sends the first image part and the third image part to the server in a first frequency band, wherein the first frequency band is determined by the first image transmission rule; After the inspection terminal determines that the server correctly receives the first image part and the third image part, the inspection terminal sends the second image part and the fourth image part to the server in a second frequency band, wherein the second frequency band is determined by the first image transmission rule.

7. The device according to claim 6, characterized in that The step of dividing the first road inspection image into a first image portion and a second image portion by the inspection terminal based on the first image transmission rule includes: The inspection terminal cuts the first road inspection image into a plurality of rectangles based on the first image transmission rule; The inspection terminal divides a part of the multiple rectangles into the first image part, wherein the multiple rectangles in the first image part are not adjacent to each other; The inspection terminal divides the remaining rectangles of the multiple rectangles into the second image part, wherein the multiple rectangles in the second image part are not adjacent to each other.

8. The device according to claim 7, characterized in that There is a first predefined relationship between the first road inspection image and the second road inspection image, wherein the first predefined relationship is determined by the first image transmission rule.

9. The device according to claim 8, characterized in that The apparatus also includes a module for performing the following operations: After a predefined time, the inspection terminal requests the image transmission rule from the server again; After the inspection terminal requests the image transmission rule from the server again, the inspection terminal receives a second image transmission rule indicator sent by the server; The inspection terminal determines a second image transmission rule based on the second image transmission rule indicator; The inspection terminal divides the third road inspection image into a fifth image portion and a sixth image portion based on the second image transmission rule, and divides the fourth road inspection image into a seventh image portion and an eighth image portion based on the second image transmission rule; The inspection terminal sends the fifth image part and the seventh image part to the server in a third frequency band, wherein the third frequency band is determined by the second image transmission rule; After the inspection terminal determines that the server correctly receives the fifth image part and the seventh image part, the inspection terminal sends the sixth image part and the eighth image part to the server in a fourth frequency band, wherein the fourth frequency band is determined by the second image transmission rule.

10. The device according to claim 9, characterized in that The step of dividing the third road inspection image into a fifth image portion and a sixth image portion by the inspection terminal based on the second image transmission rule includes: The inspection terminal cuts the third road inspection image into a plurality of rectangles based on the second image transmission rule, wherein the first road inspection image is cut in a different manner from the third road inspection image; The inspection terminal divides a part of the multiple rectangles into the fifth image part, wherein the multiple rectangles in the fifth image part are not adjacent to each other; The inspection terminal divides the remaining rectangles of the multiple rectangles into the sixth image part, wherein the multiple rectangles in the sixth image part are not adjacent to each other.

Images