Method and device for collecting information of electric bicycle and capturing bicycle picture at preset position

Abstract

The invention provides a method and device for collecting information of an electric bicycle and capturing a bicycle picture at a preset position. The method comprises the steps that the position of a video module is adjusted; the electric bicycle is provided with an electronic tag with a unique identification code, and a tag rule list is issued according to the unique identification code; when the electric bicycle is driven into the coverage range of the antenna, the antenna checks the electronic tag to obtain phase information, and the relative distance between the electronic tag and the antenna is calculated in a dual-frequency mode; the method comprises the following steps: acquiring radio frequency information, judging whether a preset position is reached or not, performing image snapshot by a video module to obtain image information, integrating the radio frequency information, position information and image information into a data structure, and matching a read electronic identifier with a tag rule list issued by a data server, and the labels in the label rule list are reported to a data server for storage. The radio frequency information of the electric bicycle and the image information of the electric bicycle at the preset position can be collected, and management of the electric bicycle is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of electric vehicle position capture images, and in particular to a method and device for collecting electric bicycle information and capturing vehicle images at a predetermined position. Background Art

[0002] Electric bicycles are easy to ride, faster than ordinary bicycles, and save time and effort. With their convenience and speed, electric bicycles have quickly been widely promoted and applied. However, it is precisely because of these characteristics and the vigorous development of the electric bicycle industry that the control of electric bicycles is difficult. Moreover, with the continuous growth in the number of electric bicycles, various traffic violations are also common. Traffic chaos such as running red lights, driving in the wrong direction, competing for lanes, and crossing the street at will can be seen everywhere, and various traffic accidents caused by this are frequent. In order to further strengthen the management of electric bicycles, improve the quality of cities, and create a good road traffic environment, various cities have launched the Internet registration and licensing business for electric bicycles.

[0003] Radio frequency information is not affected by natural factors such as weather and light, and is suitable for information collection of electric bicycles. Based on the GB37987 protocol, radio frequency equipment can receive and record electric bicycle information recorded by all radio frequency electronic identification within the coverage area, but such information only remains at the data level.

[0004] In order to better solve this problem, it is necessary to effectively manage and monitor electric bicycles. At present, there are some electric bicycle management systems on the market, but these systems usually require special equipment to be installed on the vehicle, which is costly and may affect the use of the vehicle. Therefore, there is an urgent need for a method and device that can collect vehicle information and capture vehicle images without affecting the normal use of electric bicycles. Summary of the invention

[0005] In view of this, the problem to be solved by the present invention is to provide a method and device for collecting electric bicycle information and capturing a vehicle picture at a predetermined position.

[0006] To solve the above technical problems, the technical solution adopted by the present invention is: a method and device for collecting electric bicycle information and capturing vehicle pictures at a predetermined position, including installing a device at a predetermined position and adjusting the position of a video module so that the center position of the video coverage range is a predetermined capture position, for capturing pictures of the electric bicycle;

[0007] The electric bicycle is equipped with an electronic tag with a unique identification code, and a tag rule list is issued on the data server according to the unique identification code;

[0008] When an electric bicycle enters the coverage area of ​​the antenna, the antenna counts the electronic tag and obtains the phase information corresponding to the electronic tag. When the dual-frequency mode is used, the frequency point is switched once in each round of the reading process, and the phase of a reverse signal is measured at each of the two frequency points. The relative distance between the electronic tag and the antenna is calculated by the dual-frequency phase difference method.

[0009] The radio frequency information of the electric bicycle is collected to determine whether the electric bicycle has reached the predetermined location. The video module captures the image of the electric bicycle to obtain image information. After the capture is completed, the radio frequency information, location information, and image information of the electric bicycle are integrated into a data structure, and the read electronic identification is matched with the tag rule list issued by the data server. The tags in the tag rule list are reported to the data server for storage.

[0010] In the present invention, preferably, a radio frequency ranging step is used to determine whether the electric bicycle has reached the predetermined position. The radio frequency ranging step is specifically that when the electric bicycle is traveling from the left side to the right side in the figure, the radio frequency module can always read the electronic tag, calculate the distance through the dual-frequency positioning algorithm, and store the data in the data linked list and update it continuously; when the distance reaches the threshold, an instruction is sent to the video module to capture the picture, the video module parses the image data, parses the license plate number of the electric bicycle, and transmits it back to the data processing module, matches the license plate number with the radio frequency data linked list, finds the corresponding radio frequency data, and reports the data fusion to the data server.

[0011] In the present invention, preferably, the radio frequency ranging step is completed by a reader.

[0012] In the present invention, preferably, the electronic tag includes several data area information, and the data area includes an EPC area, a TID area or a USER area.

[0013] In the present invention, preferably, the operation rule of the electronic tag refers to which data area of ​​the electronic tag is to be read.

[0014] In the present invention, preferably, the electronic identification information recorded during the antenna inventory of the road equipment exists in the form of a linked list node in the software, and each round of inventory creates a node or updates the state of an existing node. When the node meets the distance, it enters the trigger state and is converted into a capture node. The characteristics of the capture node are divided into four states according to the number of shots and the time when the capture command is issued.

[0015] In the present invention, preferably, the four states are respectively a command not issued state, a command issued state, a command issued end state or a snapshot end state.

[0016] A device for collecting information about an electric bicycle and capturing a picture of the vehicle at a predetermined location, comprising an electronic tag, having a unique identification code, registered and mounted on the electric bicycle;

[0017] a video module, mounted at a predetermined location, for capturing a picture of the electric bicycle;

[0018] A wireless communication module, used to receive the operation rules for the electronic tag and upload the corresponding electronic tag data and the corresponding image data;

[0019] The data processing module is used to process the received data, extract the basic information of the electric bicycle, match the tag processing rules, and screen the electronic tags that meet the rules;

[0020] The data server issues the operation rules of the electronic tag and stores the electronic tag data and pictures; searches the tag data results through the unique identifier of the electronic tag, compares the picture data, and checks the image status of the electric bicycle when it is captured.

[0021] The advantages and positive effects of the present invention are: the present invention can collect electric bicycle information by using radio frequency identification technology and can obtain image information of electric bicycles at a predetermined position; through the data server, the electronic tag is queried to view the image information of the electric bicycle, thereby strengthening the effective management and monitoring of the electric bicycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a flow chart of electronic identification node scheduling of a method and device for collecting electric bicycle information and capturing vehicle images at a predetermined position of the present invention;

[0024] Figure 2 It is a road equipment workflow diagram of a method and device for collecting electric bicycle information and capturing vehicle images at a predetermined position of the present invention;

[0025] Figure 3 It is a schematic diagram of road equipment deployment of a method and device for collecting electric bicycle information and capturing vehicle images at a predetermined position according to the present invention;

[0026] Figure 4 It is a diagram of a deployment schematic diagram of a single-lane electric bicycle information collection, positioning and capturing device of a method and device for collecting electric bicycle information and capturing a vehicle image at a predetermined position of the present invention. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0030] like Figure 1 , Figure 2 and Figure 3 As shown, the present invention provides a method and apparatus for collecting electric bicycle information and capturing vehicle images at a predetermined position, including installing a device at a predetermined position and adjusting the position of a video module so that the center position of the video coverage range is a predetermined capture position, for capturing images of the electric bicycle;

[0031] The electric bicycle is equipped with an electronic tag with a unique identification code, and a tag rule list is issued on the data server according to the unique identification code;

[0032] When an electric bicycle enters the coverage area of ​​the antenna, the antenna counts the electronic tag and obtains the phase information corresponding to the electronic tag. When the dual-frequency mode is used, the frequency point is switched once in each round of the reading process, and the phase of a reverse signal is measured at each of the two frequencies. The relative distance between the electronic tag and the antenna is calculated by the dual-frequency phase difference method. The switching frequency point is to calculate the distance. The tag is read at two different frequencies, and the phase values ​​at two different frequencies are collected. The straight-line distance between the tag and the antenna is obtained by the phase difference. The 900M RF frequency is divided into 20 frequencies from 920125-924875. When switching between any two frequencies, the frequency difference is no more than 8. After the relative distance between the electronic tag and the antenna reaches the distance threshold, the video module captures the picture.

[0033] The radio frequency information of the electric bicycle is collected to determine whether the electric bicycle has reached the predetermined location. The video module captures the image of the electric bicycle to obtain image information. After the capture is completed, the radio frequency information, location information, and image information of the electric bicycle are integrated into a data structure, and the read electronic identification is matched with the tag rule list issued by the data server. The tags in the tag rule list are reported to the data server for storage.

[0034] In this embodiment, further, a radio frequency ranging step is used to determine whether the electric bicycle has reached the predetermined position. The radio frequency ranging step is specifically that when the electric bicycle is traveling from the left side to the right side in the figure, the radio frequency module can always read the electronic tag, calculate the distance through the dual-frequency positioning algorithm, and store the data in the data linked list and update it continuously; when the distance reaches the threshold, an instruction is sent to the video module to capture the picture, the video module parses the image data, parses the license plate number of the electric bicycle, and transmits it back to the data processing module, matches the license plate number with the radio frequency data linked list, finds the corresponding radio frequency data, and reports the data fusion to the data server.

[0035] In this embodiment, further, the radio frequency ranging step is completed by a reader, so that the electric bicycle equipped with an electronic identification can notify the video module to schedule the camera to capture when it reaches the predetermined optimal position within the field of view of the video camera, thereby obtaining the image information of the electric bicycle at this time. This predetermined position needs to be set according to the actual construction environment of the equipment.

[0036] In this embodiment, further, the electronic tag includes information of several data areas, and the data area includes an EPC area, a TID area or a USER area.

[0037] In this embodiment, further, the operation rule of the electronic tag refers to which data area of ​​the electronic tag is to be read.

[0038] In this embodiment, the electronic identification information recorded during the antenna inventory of the road equipment is stored in the software in the form of a linked list node. Each round of inventory creates a node or updates the state of an existing node. When the node meets the distance, it enters the trigger state and is converted into a capture node. The characteristics of the capture node are divided into four states according to the number of shots and the time when the capture command is issued.

[0039] The license plate of the non-motor vehicle is hung behind the non-motor vehicle. The driving direction of the non-motor vehicle is from near to far, which is a process of passing under the device and then moving away. The distance threshold 1 is a near distance (assuming 5m), and the distance threshold 2 is a far distance (assuming 20m, which is the predetermined position); null is a node without a label in the current list. When the non-motor vehicle passes through threshold 1 and meets the conditions, the label node is converted from null to near, and then reaches threshold 2. It meets the trigger conditions and enters the trigger state, that is, near is converted to trigger, and the label radio frequency node is also converted into a capture node.

[0040] In this embodiment, further, the four states are respectively a command not issued state, a command issued state, a command issued end state or a snapshot end state.

[0041] When there is no electronic tag data, the capture node is null; when the non-motor vehicle passes through the coverage of the equipment and meets the scheduling process of the RF node, the RF node is converted to a capture node. At this time, the capture node is no longer null but converted to cmd state to send a capture command to the video module. The scheduling of the video module is linear scheduling. It is necessary to send capture commands to the video module multiple times according to the set number of pictures. When all the sending is completed, it is cmdend. When the video module completes all captures, the capture node process ends and it is end.

[0042] A device for collecting information about an electric bicycle and capturing a picture of the vehicle at a predetermined location, comprising an electronic tag, having a unique identification code, registered and mounted on the electric bicycle;

[0043] a video module, mounted at a predetermined location, for capturing a picture of the electric bicycle;

[0044] A wireless communication module, used to receive the operation rules for the electronic tag and upload the corresponding electronic tag data and the corresponding image data;

[0045] The data processing module is used to process the received data, extract the basic information of the electric bicycle, match the tag processing rules, and screen the electronic tags that meet the rules; the tag data includes but is not limited to the card type, province code, license code, license plate number, usage nature, factory date, vehicle type, license plate type, body color, and the data is stored in the TID area of ​​the tag; detect whether the acquired data is TID area data.

[0046] The data server issues the operation rules of the electronic tag and stores the electronic tag data and pictures; searches the tag data results through the unique identifier of the electronic tag, compares the picture data, and checks the image status of the electric bicycle when it is captured.

[0047] The label data includes but is not limited to card type, province code, license plate code, license plate number, usage nature, production date, vehicle type, license plate type, and body color; the image data includes but is not limited to license plate number, license plate type, license plate color, vehicle type, and body color; the label data linked list is retrieved through the unique identifier; the license plate number in the label node data is matched with the license plate number in the image information.

[0048] Figure 3 This is a schematic diagram of the deployment of road equipment. The road equipment is equipped with a single antenna facing the non-motorized lane to collect radio frequency data of electric bicycles, and is equipped with up to two cameras for image capture. The rightmost lane in the figure is a non-motorized lane.

[0049] Figure 4 This is a schematic diagram of the deployment of the single-lane electric bicycle information collection, positioning and capturing device. According to the deployment shown in the figure, from the characteristics of the visual and radio frequency, it can be seen that the radio frequency inventory range must be larger than the camera's field of view. Therefore, this deployment method can ensure that the electric bicycle vehicle carrying the radio frequency electronic tag is first captured by the antenna for the radio frequency signal before entering the camera's field of view, and the relative distance is updated in real time to capture image information at the predetermined position.

[0050] The device side always starts the RFID reading rules. Since the electric bicycle license plate is hung on the rear of the electric bicycle, when the electric bicycle is moving from the left to the right in the picture, the RFID module can always read the electronic tag, calculate the distance through the dual-frequency positioning algorithm, and store the data in the data linked list for continuous updating; when the distance reaches the threshold, a command is sent to the video module to capture the picture, and the video module parses the image data to parse out the license plate number of the electric bicycle, and transmits it back to the data processing module, which matches the license plate number with the RFID data linked list to find the corresponding RFID data, and the data fusion is reported to the data server.

[0051] The present invention can collect electric bicycle information by using radio frequency identification technology and can obtain image information of the electric bicycle at a predetermined position; through the data server, the electronic tag is queried to view the image information of the electric bicycle, thereby strengthening the effective management and monitoring of the electric bicycle.

[0052] The embodiments of the present invention are described in detail above, but the contents described are only preferred embodiments of the present invention and cannot be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of this patent.

Claims

1. A method for collecting electric bicycle information and capturing vehicle images at a predetermined location, characterized in that: The steps include: Install the device at a predetermined position and adjust the position of the video module so that the center of the video coverage is a predetermined capture position for capturing a picture of the electric bicycle; The electric bicycle is equipped with an electronic tag with a unique identification code, and a tag rule list is issued on the data server according to the unique identification code; When an electric bicycle enters the coverage area of ​​the antenna, the antenna counts the electronic tag and obtains the phase information corresponding to the electronic tag. When the dual-frequency mode is used, the frequency point is switched once in each round of the reading process, and the phase of a reverse signal is measured at each of the two frequency points. The relative distance between the electronic tag and the antenna is calculated by the dual-frequency phase difference method. The radio frequency information of the electric bicycle is collected to determine whether the electric bicycle has reached the predetermined location. The video module captures the image of the electric bicycle to obtain image information. After the capture is completed, the radio frequency information, location information, and image information of the electric bicycle are integrated into a data structure, and the read electronic identification is matched with the tag rule list issued by the data server. The tags in the tag rule list are reported to the data server for storage.

2. A method for collecting electric bicycle information and capturing vehicle images at a predetermined location according to claim 1, characterized in that: The radio frequency ranging step is used to determine whether the electric bicycle has reached the predetermined position. Specifically, when the electric bicycle is moving from the left side to the right side in the figure, the radio frequency module can read the electronic tag all the time, calculate the distance through the dual-frequency positioning algorithm, and store the data in the data link table and update it all the time; When the distance reaches the threshold, a command is sent to the video module to take a snapshot. The video module parses the image data, parses out the license plate number of the electric bicycle, and transmits it back to the data processing module. It matches the license plate number with the radio frequency data list, finds the corresponding radio frequency data, and reports the data fusion to the data server.

3. A method for collecting electric bicycle information and capturing vehicle images at a predetermined location according to claim 1, characterized in that: The radio frequency ranging step is completed by a reader.

4. The method for collecting electric bicycle information and capturing vehicle images at a predetermined location according to claim 1, characterized in that: The electronic tag includes several data area information, and the data area includes an EPC area, a TID area or a USER area.

5. The method for collecting electric bicycle information and capturing vehicle images at a predetermined location according to claim 1, characterized in that: The operation rule of the electronic tag refers to which data area of ​​the electronic tag is read.

6. The method for collecting electric bicycle information and capturing vehicle images at a predetermined location according to claim 1, characterized in that: The electronic identification information recorded during the antenna inventory of road equipment exists in the form of linked list nodes in the software. Each round of inventory creates a node or updates the status of an existing node. When the node meets the distance, it enters the trigger state and is converted into a snapshot node. The characteristics of the snapshot node are divided into four states according to the number of shots and the time when the snapshot command is issued.

7. The method for collecting electric bicycle information and capturing vehicle images at a predetermined location according to claim 1, characterized in that: The four states are command not issued state, command issued state, command issued end state or snapshot end state.

8. A device for collecting electric bicycle information and capturing vehicle images at a predetermined position, using a method for collecting electric bicycle information and capturing vehicle images at a predetermined position as claimed in any one of claims 1 to 7, characterized in that: It includes an electronic tag, wherein the electronic tag has a unique identification code and is installed on the electric bicycle; a video module, mounted at a predetermined location, for capturing a picture of the electric bicycle; A wireless communication module, used to receive the operation rules for the electronic tag and upload the corresponding electronic tag data and the corresponding image data; The data processing module is used to process the received data, extract the basic information of the electric bicycle, match the tag processing rules, and screen the electronic tags that meet the rules; The data server issues the operation rules of the electronic tag and stores the electronic tag data and pictures; searches the tag data results through the unique identifier of the electronic tag, compares the picture data, and checks the image status of the electric bicycle when it is captured.

Images