Intelligent traffic monitoring system using dynamic coding

Abstract

The present invention relates to an intelligent traffic monitoring system using dynamic coding, comprising: a strategy customization mechanism, which is used to perform intra-frame coding based on a color collaborative coding mode on an overhead monitoring screen when the total number of received reference objects is less than or equal to a set number threshold, otherwise, perform intra-frame coding based on separate coding of each color on the overhead monitoring screen; a data transmission mechanism, which is used to send intra-frame coding data of the overhead monitoring screen. Through the present invention, different intra-frame coding strategies can be adaptively selected based on the number of vehicle objects in the screen for each frame of the overhead monitoring screen, that is, when the number of vehicle objects in the overhead monitoring screen is small and the screen content is relatively simple and has more repeated data, perform intra-frame coding based on a color collaborative coding mode on the overhead monitoring screen, otherwise, perform intra-frame coding based on separate coding of each color on the overhead monitoring screen, thereby achieving a dynamic balance between coding efficiency and coding quality.

Description

Technical Field

[0001] The present invention relates to the field of intelligent transportation, and in particular to an intelligent transportation monitoring system using dynamic coding. Background Art

[0002] As a large-scale, all-round transportation and management system, the intelligent transportation system relies on the rapid development of the Internet of Things in recent years, and efficiently combines advanced control, sensing, communication, information technology and computer technology, and comprehensively applies them to the entire traffic management system. Because it greatly alleviates traffic congestion, effectively reduces the occurrence of traffic accidents, improves the safety of the transportation system, and reduces environmental pollution, it has become the most representative application in the field of the Internet of Things. The intelligent transportation system includes many branch systems, mainly including traveler information systems, traffic management systems, public transportation systems, vehicle control and safety systems, non-stop toll collection systems, emergency management systems, and commercial vehicle operation systems. Each system performs its own duties and complements each other to effectively improve traffic conditions.

[0003] The transmission speed of intelligent traffic monitoring images directly determines the response speed of remote intelligent traffic management personnel. However, in the prior art, the same encoding mode is used for all intelligent traffic monitoring images when performing intra-frame encoding on site. Obviously, this fixed encoding mode cannot adapt to intelligent traffic monitoring images with different image contents, resulting in either poor encoding effect or too long transmission time. Summary of the invention

[0004] In order to solve the technical problems in the related fields, the present invention provides an intelligent traffic monitoring system using dynamic coding. For the intersection monitoring device arranged directly above the target traffic intersection, after each frame of overhead monitoring picture is taken, different intra-frame coding strategies are adaptively selected based on the number of vehicle objects in the picture. That is, when the number of vehicle objects in the overhead monitoring picture is small, the picture content is relatively simple, and there is a lot of repeated data, the overhead monitoring picture is intra-frame encoded based on the color collaborative coding mode to obtain the intra-frame coded data of the overhead monitoring picture; when the number of vehicle objects in the overhead monitoring picture is large, the picture content is relatively complex, and there is less repeated data, the overhead monitoring picture is intra-frame encoded based on the respective color coding to obtain the intra-frame coded data of the overhead monitoring picture, thereby achieving a dynamic balance between coding efficiency and coding quality.

[0005] According to the present invention, there is provided an intelligent traffic monitoring system using dynamic coding, the system comprising:

[0006] The intersection monitoring device is arranged just above the target traffic intersection and is used to perform a bird's-eye view operation on the target traffic intersection at a set time interval to obtain and output a corresponding bird's-eye view monitoring picture;

[0007] A content detection device, connected to the intersection monitoring device, for identifying the number of vehicle objects in the received overhead monitoring picture to output as the total number of reference objects, wherein the identification is based on the appearance imaging features of various vehicles;

[0008] A feature storage device, connected to the content detection device, for temporarily storing the appearance imaging features of the various vehicles;

[0009] a policy customization mechanism connected to the content detection device, and configured to perform intra-frame coding based on the color cooperative coding mode on the overhead surveillance picture when the total number of received reference objects is less than or equal to a set number threshold, so as to obtain intra-frame coded data of the overhead surveillance picture, and to perform intra-frame coding based on respective color coding on the overhead surveillance picture when the total number of received reference objects is greater than the set number threshold, so as to obtain intra-frame coded data of the overhead surveillance picture;

[0010] A data transmission mechanism, connected to the policy customization mechanism, for sending the intra-frame coded data of the overhead surveillance screen to the intra-frame decoding device at the opposite end through a transmission channel;

[0011] Wherein, when the total number of received reference objects is less than or equal to a set number threshold, intra-frame coding based on a color collaborative coding mode is performed on the overhead surveillance picture to obtain intra-frame coded data of the overhead surveillance picture, and when the total number of received reference objects is greater than the set number threshold, intra-frame coding based on respective color coding is performed on the overhead surveillance picture to obtain intra-frame coded data of the overhead surveillance picture, including: each color is R red, G green and B blue in an RGB color space, and the overhead surveillance picture is evenly divided to obtain each sub-picture;

[0012] Wherein, when the total number of reference objects received is less than or equal to a set number threshold, intra-frame coding based on a color collaborative coding mode is performed on the overhead monitoring picture to obtain intra-frame coding data of the overhead monitoring picture, and when the total number of reference objects received is greater than the set number threshold, intra-frame coding based on respective color coding is performed on the overhead monitoring picture to obtain intra-frame coding data of the overhead monitoring picture. The method further includes: when the total number of reference objects received is less than or equal to a set number threshold, after completing the red intra-frame coding operation on each sub-picture of the overhead monitoring picture and obtaining the reconstructed sub-picture of each red sub-picture, taking each sub-picture in the overhead monitoring picture as a target sub-picture, obtaining a matching value between the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as a reference candidate for the target sub-picture to perform a green intra-frame coding operation and as a reference candidate for the target sub-picture to perform a blue intra-frame coding operation;

[0013] Among them, obtaining the matching value of the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as a reference candidate for the target sub-picture to perform a green intra-frame coding operation and as a reference candidate for the target sub-picture to perform a blue intra-frame coding operation includes: in the two sub-pictures, the positions with the same pixel values ​​of the pixels at the same position are taken as repeated value positions, and the more the number of repeated value positions is, the larger the matching value of the two sub-pictures is.

[0014] It can be seen that the present invention has at least the following three important inventive features:

[0015] First invention point: for the intersection monitoring device set up directly above the target traffic intersection, after taking each frame of the overhead monitoring picture, different intra-frame coding strategies are adaptively selected based on the number of vehicle objects in the picture, so as to achieve a dynamic balance between coding efficiency and coding quality;

[0016] Second invention point: Specifically, when the number of vehicle objects in the overhead monitoring picture is small, the picture content is relatively simple, and the repeated data is large, the overhead monitoring picture is intra-frame encoded based on the color cooperative encoding mode to obtain the intra-frame encoded data of the overhead monitoring picture; when the number of vehicle objects in the overhead monitoring picture is large, the picture content is relatively complex, and the repeated data is small, the overhead monitoring picture is intra-frame encoded based on the respective color encoding to obtain the intra-frame encoded data of the overhead monitoring picture;

[0017] The third inventive point: when performing intra-frame coding based on the color collaborative coding mode on the overhead surveillance picture, after completing the red intra-frame coding operation on each sub-picture of the overhead surveillance picture and obtaining the reconstructed sub-picture of each red sub-picture, each sub-picture in the overhead surveillance picture is used as a target sub-picture, and the matching value of the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture is obtained, and the adjacent sub-picture with the largest matching value is used as a reference candidate for performing the green intra-frame coding operation on the target sub-picture and as a reference candidate for performing the blue intra-frame coding operation on the target sub-picture, thereby completing the green and blue intra-frame coding processing based on the red intra-frame coding result. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The embodiments of the present invention will be described below with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a schematic diagram of the internal structure of an intelligent traffic monitoring system using dynamic coding according to implementation scheme A of the present invention.

[0020] Figure 2 Schematic diagram of the internal structure of an intelligent traffic monitoring system using dynamic coding according to implementation B of the present invention.

[0021] Figure 3 Schematic diagram of the internal structure of an intelligent traffic monitoring system using dynamic coding according to implementation scheme C of the present invention. DETAILED DESCRIPTION

[0022] The implementation scheme of the intelligent traffic monitoring system using dynamic coding of the present invention will be described in detail below with reference to the accompanying drawings.

[0023] Figure 1 The internal structure diagram of the intelligent traffic monitoring system using dynamic coding according to Embodiment A of the present invention is shown, and the system includes:

[0024] The intersection monitoring device is arranged just above the target traffic intersection and is used to perform a bird's-eye view operation on the target traffic intersection at a set time interval to obtain and output a corresponding bird's-eye view monitoring picture;

[0025] For example, the intersection monitoring device is arranged directly above the target traffic intersection, and is used to perform a bird's-eye view operation on the target traffic intersection at a set time interval to obtain and output a corresponding bird's-eye view monitoring picture, including: more than one intersection monitoring device is arranged at each traffic intersection in each city;

[0026] A content detection device, connected to the intersection monitoring device, for identifying the number of vehicle objects in the received overhead monitoring picture to output as the total number of reference objects, wherein the identification is based on the appearance imaging features of various vehicles;

[0027] A feature storage device, connected to the content detection device, for temporarily storing the appearance imaging features of the various vehicles;

[0028] a policy customization mechanism connected to the content detection device, and configured to perform intra-frame coding based on the color cooperative coding mode on the overhead surveillance picture when the total number of received reference objects is less than or equal to a set number threshold, so as to obtain intra-frame coded data of the overhead surveillance picture, and to perform intra-frame coding based on respective color coding on the overhead surveillance picture when the total number of received reference objects is greater than the set number threshold, so as to obtain intra-frame coded data of the overhead surveillance picture;

[0029] A data transmission mechanism, connected to the policy customization mechanism, for sending the intra-frame coded data of the overhead surveillance screen to the intra-frame decoding device at the opposite end through a transmission channel;

[0030] Wherein, when the total number of received reference objects is less than or equal to a set number threshold, intra-frame coding based on a color collaborative coding mode is performed on the overhead surveillance picture to obtain intra-frame coded data of the overhead surveillance picture, and when the total number of received reference objects is greater than the set number threshold, intra-frame coding based on respective color coding is performed on the overhead surveillance picture to obtain intra-frame coded data of the overhead surveillance picture, including: each color is R red, G green and B blue in an RGB color space, and the overhead surveillance picture is evenly divided to obtain each sub-picture;

[0031] Wherein, when the total number of reference objects received is less than or equal to a set number threshold, intra-frame coding based on a color collaborative coding mode is performed on the overhead monitoring picture to obtain intra-frame coding data of the overhead monitoring picture, and when the total number of reference objects received is greater than the set number threshold, intra-frame coding based on respective color coding is performed on the overhead monitoring picture to obtain intra-frame coding data of the overhead monitoring picture. The method further includes: when the total number of reference objects received is less than or equal to a set number threshold, after completing the red intra-frame coding operation on each sub-picture of the overhead monitoring picture and obtaining the reconstructed sub-picture of each red sub-picture, taking each sub-picture in the overhead monitoring picture as a target sub-picture, obtaining a matching value between the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as a reference candidate for the target sub-picture to perform a green intra-frame coding operation and as a reference candidate for the target sub-picture to perform a blue intra-frame coding operation;

[0032] Wherein, obtaining the matching value of the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as a reference candidate for the target sub-picture to perform a green intra-frame coding operation and as a reference candidate for the target sub-picture to perform a blue intra-frame coding operation comprises: in the two sub-pictures, taking the positions with the same pixel values ​​of the pixels at the same position as the repeated value positions, the more the number of the repeated value positions, the greater the matching values ​​of the two sub-pictures;

[0033] Wherein, obtaining the matching value of the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as the reference candidate for the target sub-picture to perform the green intra-frame coding operation and as the reference candidate for the target sub-picture to perform the blue intra-frame coding operation includes: the red sub-picture of each adjacent sub-picture is a numerical matrix composed of the values ​​of each red channel of each pixel point in the adjacent sub-picture;

[0034] And wherein, when the total number of reference objects received is less than or equal to a set number threshold, intra-frame encoding based on a color collaborative coding mode is performed on the overhead surveillance screen to obtain intra-frame coded data of the overhead surveillance screen. It is also used to perform intra-frame encoding based on separate coding of each color on the overhead surveillance screen when the total number of reference objects received is greater than the set number threshold to obtain intra-frame coded data of the overhead surveillance screen. It also includes: when the total number of reference objects received is greater than the set number threshold, red, green and blue intra-frame coding operations are completed for each sub-screen of the overhead surveillance screen respectively.

[0035] Figure 2 Schematic diagram of the internal structure of an intelligent traffic monitoring system using dynamic coding according to implementation B of the present invention.

[0036] Compared with implementation scheme A, the intelligent traffic monitoring system using dynamic coding shown in implementation scheme B may also include the following components:

[0037] An ASIC processing chip, connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, respectively, for providing configuration operations of working parameters for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner;

[0038] The ASIC processing chip is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide the configuration operation of working parameters for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, including: the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device share the same working parameter configuration interface;

[0039] Wherein, the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device use different configuration address data;

[0040] Wherein, a parallel connection of a communication data link is established between each of the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device through a parallel data bus;

[0041] Among them, the parallel connection of the communication data link established between the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device through a parallel data bus includes: the parallel data bus is one of an 8-bit parallel data bus, a 16-bit parallel data bus and a 32-bit parallel data bus.

[0042] Figure 3 Schematic diagram of the internal structure of an intelligent traffic monitoring system using dynamic coding according to implementation scheme C of the present invention.

[0043] Compared with implementation scheme A, the intelligent traffic monitoring system using dynamic coding shown in implementation scheme C may also include the following components:

[0044] A power support device, connected to the content detection device, the feature storage device, the strategy customization mechanism and the intersection monitoring device, respectively, for providing power distribution support of different working voltages for the content detection device, the feature storage device, the strategy customization mechanism and the intersection monitoring device in a time-sharing manner;

[0045] The power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, including: two or more devices with the same working voltage requirements among the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device use the same power supply line;

[0046] Wherein, the power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, and further includes: the power support device is an uninterruptible power supply device;

[0047] Among them, the power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, and further includes: providing different working voltages including 3.3V working voltage for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner;

[0048] And wherein, the power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, and also includes: providing different working voltages including a 5V working voltage for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner.

[0049] In addition, in the intelligent traffic monitoring system using dynamic coding, the content detection device is connected to the intersection monitoring device, and is used to identify the number of vehicle objects in the received overhead monitoring picture to output as the total number of reference objects, and the identification is based on the appearance imaging features of various vehicles, including: the appearance imaging features of various vehicles are standard appearance patterns of various vehicles in the overhead perspective;

[0050] Among them, the data transmission mechanism is connected to the policy customization mechanism, and is used to send the intra-frame coded data of the overhead surveillance screen to the intra-frame decoding device at the opposite end through a transmission channel, including: the transmission channel is a wireless transmission channel.

[0051] The intelligent traffic monitoring system using dynamic coding of the present invention can adaptively select different intra-frame coding strategies for each frame of overhead surveillance picture based on the number of vehicle objects in the picture, in order to solve the technical problems in the prior art that the intelligent traffic monitoring picture or intra-frame coding quality is poor or the intra-frame coding takes too long. That is, when the number of vehicle objects in the overhead surveillance picture is small and the picture content is simple and there is a lot of repeated data, the overhead surveillance picture is intra-frame encoded based on the color collaborative coding mode; otherwise, the overhead surveillance picture is intra-frame encoded based on separate coding of each color, thereby achieving a dynamic balance between coding efficiency and coding quality.

[0052] Furthermore, the present invention is not limited to the above-mentioned embodiments themselves, and the constituent elements can be deformed and embodied in the implementation stage without departing from the scope of its purpose. In addition, various inventions can be formed by appropriately combining multiple constituent elements disclosed in the above-mentioned embodiments. For example, several constituent elements can be deleted from all the constituent elements displayed in this embodiment. Furthermore, constituent elements of different embodiments can also be appropriately combined.

Claims

1. An intelligent traffic monitoring system using dynamic coding, characterized in that: The system comprises: The intersection monitoring device is arranged just above the target traffic intersection and is used to perform a bird's-eye view operation on the target traffic intersection at a set time interval to obtain and output a corresponding bird's-eye view monitoring picture; A content detection device, connected to the intersection monitoring device, for identifying the number of vehicle objects in the received overhead monitoring picture to output as the total number of reference objects, wherein the identification is based on the appearance imaging features of various vehicles; A feature storage device, connected to the content detection device, for temporarily storing the appearance imaging features of the various vehicles; a policy customization mechanism connected to the content detection device, and configured to perform intra-frame coding based on the color cooperative coding mode on the overhead surveillance picture when the total number of received reference objects is less than or equal to a set number threshold, so as to obtain intra-frame coded data of the overhead surveillance picture, and to perform intra-frame coding based on respective color coding on the overhead surveillance picture when the total number of received reference objects is greater than the set number threshold, so as to obtain intra-frame coded data of the overhead surveillance picture; A data transmission mechanism, connected to the policy customization mechanism, for sending the intra-frame coded data of the overhead surveillance image to the intra-frame decoding device at the opposite end through a transmission channel; Wherein, when the total number of received reference objects is less than or equal to a set number threshold, intra-frame coding based on a color collaborative coding mode is performed on the overhead surveillance picture to obtain intra-frame coded data of the overhead surveillance picture, and when the total number of received reference objects is greater than the set number threshold, intra-frame coding based on respective color coding is performed on the overhead surveillance picture to obtain intra-frame coded data of the overhead surveillance picture, including: each color is R red, G green and B blue in an RGB color space, and the overhead surveillance picture is evenly divided to obtain each sub-picture; Wherein, when the total number of reference objects received is less than or equal to a set number threshold, intra-frame coding based on a color collaborative coding mode is performed on the overhead monitoring picture to obtain intra-frame coding data of the overhead monitoring picture, and when the total number of reference objects received is greater than the set number threshold, intra-frame coding based on respective color coding is performed on the overhead monitoring picture to obtain intra-frame coding data of the overhead monitoring picture. The method further includes: when the total number of reference objects received is less than or equal to a set number threshold, after completing the red intra-frame coding operation on each sub-picture of the overhead monitoring picture and obtaining the reconstructed sub-picture of each red sub-picture, taking each sub-picture in the overhead monitoring picture as a target sub-picture, obtaining a matching value between the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as a reference candidate for the target sub-picture to perform a green intra-frame coding operation and as a reference candidate for the target sub-picture to perform a blue intra-frame coding operation; Among them, obtaining the matching value of the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and taking the adjacent sub-picture with the largest matching value as a reference candidate for the target sub-picture to perform a green intra-frame coding operation and as a reference candidate for the target sub-picture to perform a blue intra-frame coding operation includes: in the two sub-pictures, the positions with the same pixel values ​​of the pixels at the same position are taken as repeated value positions, and the more the number of repeated value positions is, the larger the matching value of the two sub-pictures is.

2. The intelligent traffic monitoring system using dynamic coding as claimed in claim 1, characterized in that: Obtaining matching values ​​of the red sub-picture of each adjacent sub-picture of the target sub-picture and the reconstructed sub-picture of the red sub-picture of the target sub-picture, and using the adjacent sub-picture with the largest matching value as a reference candidate for executing a green intra-frame coding operation on the target sub-picture and as a reference candidate for executing a blue intra-frame coding operation on the target sub-picture, including: the red sub-picture of each adjacent sub-picture is a numerical matrix composed of each red channel value of each pixel point in the adjacent sub-picture; Among them, when the total number of reference objects received is less than or equal to the set number threshold, intra-frame encoding based on the color collaborative coding mode is performed on the overhead surveillance screen to obtain intra-frame coded data of the overhead surveillance screen. It is also used to perform intra-frame encoding based on separate coding of each color on the overhead surveillance screen when the total number of reference objects received is greater than the set number threshold to obtain intra-frame coded data of the overhead surveillance screen. It also includes: when the total number of reference objects received is greater than the set number threshold, red, green and blue intra-frame coding operations are completed for each sub-screen of the overhead surveillance screen respectively.

3. The intelligent traffic monitoring system using dynamic coding as claimed in claim 2, characterized in that: The system further comprises: An ASIC processing chip, connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, respectively, for providing configuration operations of working parameters for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner; Among them, the ASIC processing chip is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide the configuration operations of working parameters for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, including: the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device share the same working parameter configuration interface.

4. The intelligent traffic monitoring system using dynamic coding as claimed in claim 3, characterized in that: The content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device use different configuration address data.

5. The intelligent traffic monitoring system using dynamic coding as claimed in claim 3, characterized in that: Establishing parallel connections of communication data links between the content detection device, the feature storage device, the policy customization mechanism, and the intersection monitoring device through parallel data buses; Among them, the parallel connection of the communication data link established between the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device through a parallel data bus includes: the parallel data bus is one of an 8-bit parallel data bus, a 16-bit parallel data bus and a 32-bit parallel data bus.

6. The intelligent traffic monitoring system using dynamic coding as claimed in claim 2, characterized in that: The system further comprises: A power support device, connected to the content detection device, the feature storage device, the strategy customization mechanism and the intersection monitoring device, respectively, for providing power distribution support of different working voltages for the content detection device, the feature storage device, the strategy customization mechanism and the intersection monitoring device in a time-sharing manner; Among them, the power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, including: among the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, two or more devices with the same working voltage requirements use the same power supply line.

7. The intelligent traffic monitoring system using dynamic coding as claimed in claim 6, characterized in that: The power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, and also includes: the power support device is an uninterruptible power supply device.

8. The intelligent traffic monitoring system using dynamic coding as claimed in claim 7, characterized in that: The power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, and also includes: providing different working voltages including a 3.3V working voltage for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner.

9. The intelligent traffic monitoring system using dynamic coding as claimed in claim 8, characterized in that: The power support device is respectively connected to the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device, and is used to provide power distribution support with different working voltages for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner, and also includes: providing different working voltages including a 5V working voltage for the content detection device, the feature storage device, the policy customization mechanism and the intersection monitoring device in a time-sharing manner.

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