Traffic cone networking communication method and system based on ESP-NOW protocol

Abstract

The invention belongs to the technical field of communication, and discloses a traffic cone networking communication method and system based on an ESP-NOW protocol, and the method comprises the steps: a remote control end distributes a corresponding ID for each intelligent traffic cone for pairing through the ESP-NOW protocol; the remote control end transmits an instruction through a data packet, controls a single or all intelligent traffic cones to move to realize networking, uses an ESP-NOW protocol, allows rapid deployment of a one-to-many communication system, and can rapidly pair with a plurality of intelligent traffic cones and send the instruction, thereby significantly improving the response speed and communication efficiency of the system. The method is particularly important for rapid response in emergency, for example, traffic control measures are rapidly deployed in traffic accidents or emergencies. By adopting an ESP-NOW protocol and combining ID distribution, data packet (formatting) and other technical means, one-to-many bidirectional communication of the intelligent traffic cone system is realized, the stability and reliability of information transmission are ensured, and powerful support is provided for intelligent traffic management.

Description

Technical Field

[0001] The present invention belongs to the field of communication technology, and in particular relates to a traffic cone networking communication method and system based on the ESP-NOW protocol. Background Art

[0002] With the acceleration of urbanization and the increase in the number of motor vehicles, traffic congestion and traffic accidents have become important challenges in urban management. In order to effectively manage and optimize traffic flow, intelligent transportation systems (ITS) have been widely developed and applied. Intelligent traffic cones can not only dynamically guide traffic flow and protect the lives of construction workers, but also provide real-time road conditions information to improve the efficiency and safety of traffic management. Traditional traffic cones usually require traffic management personnel to manually place them at accident sites, construction areas, or other locations where temporary traffic control is required. This method is not only inefficient and labor-intensive, but also poses safety hazards in emergency situations. In contrast, intelligent traffic cones integrate sensors, communication modules, and control units to achieve autonomous perception and dynamic adjustment, and plan paths to reach designated locations according to different working conditions, significantly improving traffic safety and fluency, especially in highway construction, accident sites, and traffic dispatching in busy sections of cities.

[0003] Smart traffic cones rely on reliable wireless communication technology. These devices need to receive and send data quickly and stably to ensure that they can work properly in all kinds of weather and traffic conditions. The current challenge is how to ensure that these smart devices can maintain the stability and accuracy of communication even in complex environments. Therefore, developing a new, low-power, anti-interference and efficient wireless communication solution is crucial to improving the functionality and practicality of smart traffic cones. Traditional communication methods such as Bluetooth and Wi-Fi have problems such as low transmission rate, high power consumption, and serious mutual interference in practical applications. The ESP-NOW protocol is an emerging low-power, low-latency, one-to-many communication wireless communication protocol that enables multiple devices to communicate without or using Wi-Fi. It is specifically used for short-distance data transmission between IoT devices and has good application prospects. Compared with traditional Bluetooth and Wi-Fi communication methods, ESP-NOW has the advantages of low power consumption, low latency, support for one-to-many communication, and frequency band management. Although ESP-NOW has significant advantages in the application of smart traffic cone systems, it still faces some challenges in actual deployment and application, such as network complexity, information transmission stability, data security, and equipment maintenance and management. Summary of the invention

[0004] The purpose of the present invention is to provide a traffic cone networking communication method based on the ESP-NOW protocol to solve the problems of low rate, high power consumption, serious mutual interference, etc. existing in traditional communication methods.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A traffic cone networking communication method based on the ESP-NOW protocol, comprising:

[0007] The remote control uses the ESP-NOW protocol to assign a corresponding ID to each smart traffic cone to complete the pairing;

[0008] The remote control end transmits instructions to one or more IDs through data packets to control the movement of one or more intelligent traffic cones to achieve networking.

[0009] Preferably, the remote control terminal assigns a corresponding ID to each smart traffic cone through the ESP-NOW protocol to complete pairing, which specifically includes:

[0010] S101: The remote control sends a pairing request to the smart traffic cone and sends its own MAC address at the same time;

[0011] S102: The remote control terminal receives a response signal sent back by the smart traffic cone, and automatically numbers each smart traffic cone according to the time when the response signal is received;

[0012] S103: The remote control terminal sends the number of each smart traffic cone to the corresponding smart traffic cone;

[0013] S104: The remote control end receives a confirmation signal sent back by the remote control end, and pairing is completed.

[0014] Preferably, in S102, the smart traffic cone saves the MAC address of the remote control terminal while transmitting the response signal.

[0015] Preferably, after the remote control terminal assigns a corresponding ID to each smart traffic cone through the ESP-NOW protocol, different smart traffic cones are assigned to their own independent communication channels.

[0016] Preferably, the format of the data packet includes a traffic cone ID, information type, data content and a CRC check code;

[0017] The traffic cone ID is the number of each smart traffic cone;

[0018] The information type is used to indicate the category of data content;

[0019] The data content varies with the information type and is used to directly describe the specific status value;

[0020] The CRC check code is used to verify the integrity and correctness of data during transmission.

[0021] Preferably, the remote control terminal transmits instructions via data packets; wherein the instructions are transmitted via a broadcast mode or a unicast mode;

[0022] The broadcast mode is that the remote control terminal sends instructions to all smart traffic cones simultaneously;

[0023] The unicast mode is used to send instructions to designated traffic cones.

[0024] Preferably, the remote control terminal transmits instructions to one or more IDs through data packets to control the movement of one or more intelligent traffic cones to achieve networking, specifically:

[0025] One or more intelligent traffic cones execute instructions according to the data packets transmitted by the remote control end to achieve networking, and the intelligent traffic cones periodically send their own status information.

[0026] Preferably, the smart traffic cone periodically sends its own status information by allocating a specific time window for sending the status information to each smart traffic cone through the remote control end to achieve periodic sending.

[0027] The present application also discloses an intelligent traffic cone networking communication system based on the ESP-NOW protocol, including:

[0028] A control unit is used to assign a corresponding ID to each execution unit for pairing through the ESP-NOW protocol and transmit instructions through data packets;

[0029] The execution unit is used to execute corresponding actions according to the instructions to complete the networking.

[0030] Preferably, the control unit is a remote control terminal, and the execution unit is a plurality of intelligent traffic cones.

[0031] Compared with the prior art, the present invention has the following beneficial effects:

[0032] 1) The present invention uses the ESP-NOW protocol, which allows for rapid deployment of a one-to-many communication system. The remote control can quickly pair with multiple smart traffic cones and send instructions, significantly improving the system's response speed and communication efficiency. This is particularly important for rapid response in emergency situations, such as rapid deployment of traffic control measures in traffic accidents or emergencies.

[0033] 2) The present invention reduces signal interference through frequency band management and timing control, improves the stability of data transmission, and ensures that traffic cones can stably perform their tasks in complex traffic environments.

[0034] 3) The communication method of the present invention simplifies the deployment and maintenance of smart traffic cones. Using the ESP-NOW protocol, smart traffic cones can be easily installed and configured without complex wiring or infrastructure modifications, greatly reducing the complexity and cost of implementation.

[0035] 4) The networking communication method of the present invention makes the system easy to expand, and more intelligent traffic cones can be seamlessly added to cope with the ever-changing traffic management needs. This facilitates the upgrade and expansion of future urban traffic management systems.

[0036] The present invention aims to achieve efficient, stable and low-power wireless communication and improve the overall performance and reliability of the intelligent traffic cone system. By adopting the ESP-NOW protocol, combined with technical means such as ID allocation, data packet (formatting), broadcast and unicast mode, information type encoding and data verification, one-to-many two-way communication of the intelligent traffic cone system is achieved, ensuring the stability and reliability of information transmission, and providing strong support for intelligent traffic management. The present invention improves the stability of communication of the intelligent traffic cone system, and also improves the overall performance of traffic safety management, laying a solid foundation for the further development of the intelligent traffic system. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0038] Figure 1 is a flow chart of the method of the present invention;

[0039] Figure 2 Schematic diagram of network communication based on ESP-NOW protocol of the present invention;

[0040] Figure 3 It is a schematic diagram of the data transmission process of the present invention. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0042] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. 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.

[0043] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0044] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0045] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0046] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0047] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0048] See also Figure 1 The present application discloses a traffic cone networking communication method based on the ESP-NOW protocol, comprising:

[0049] S1: The remote control assigns a corresponding ID to each smart traffic cone through the ESP-NOW protocol to complete the pairing; the initialization and pairing process is implemented through the ESP-NOW protocol to quickly establish a communication connection between the remote control and the smart traffic cone. The remote control assigns a unique ID to each traffic cone to identify different traffic cones in the system.

[0050] S2: The remote control transmits instructions to one or more IDs through data packets to control the movement of one or more intelligent traffic cones to achieve networking. Instructions are transmitted through data packets to ensure the standardization and accuracy of data transmission.

[0051] In some embodiments, the remote control is paired with the smart traffic cone, specifically including:

[0052] S101: The remote control sends a pairing request and sends its own MAC address at the same time;

[0053] S102: After receiving the response signal sent back by the smart traffic cone, the remote control terminal automatically numbers each smart traffic cone according to the reception time of the response signal;

[0054] S103: The remote control sends the number of the smart traffic cone to the corresponding smart traffic cone and receives a confirmation signal to complete the pairing.

[0055] In some embodiments, the remote control is paired with the smart traffic cone, specifically including:

[0056] S101: The remote control sends a pairing request to the smart traffic cone and sends its own MAC address at the same time;

[0057] S102: The intelligent traffic cone transmits a response signal back to the remote control end;

[0058] S103: After receiving the response signal sent back by the smart traffic cone, the remote control terminal automatically numbers each smart traffic cone according to the reception time of the response signal;

[0059] S104: The remote control terminal sends the number of each smart traffic cone to the corresponding smart traffic cone;

[0060] S105: After receiving the corresponding number, the intelligent traffic cone sends a confirmation signal back to the remote control end;

[0061] S106: The remote control receives the confirmation signal and the pairing is completed.

[0062] In some embodiments, see Figure 2 , Figure 3, the remote control is configured as the master device (Master) at startup, and has the ability to send and receive information; the smart traffic cone is set as the slave device (Slave), which also has the ability to send and receive information. The remote control assigns a unique ID to each traffic cone to identify different traffic cones in the system. During the pairing process, the remote control sends a pairing request by broadcasting and sends its own MAC address at the same time. After receiving the pairing request, each smart traffic cone obtains and saves the address of the remote control, and the indicator light flashes and returns a response signal, indicating that the communication connection is successfully established. After receiving the response, the remote control automatically numbers each traffic cone according to the reception time of the response signal, and sends the number information to the corresponding traffic cone. After each traffic cone receives its own number, it whistles and returns a confirmation signal to complete the pairing. In addition, traffic cones are connected through point-to-point direct communication, which optimizes the network topology and effectively improves the overall communication efficiency and stability of the system.

[0063] In some embodiments, during the data transmission process, the remote control terminal mainly manages and controls the smart traffic cones through two communication modes: broadcast mode and unicast mode. The broadcast mode allows the remote control terminal to send instructions, such as status updates, to all smart traffic cones at the same time, ensuring that all devices can perform unified operations at the same time. Such synchronous operations are essential for maintaining the consistency of the entire system. For example, the remote control terminal broadcasts an update signal, requiring all traffic cones to refresh their display settings to reflect the latest traffic location information. The unicast mode is used to send individual instructions to specific traffic cones, and can make fine adjustments to specific cones, such as adjusting their physical positions or updating specific display content. The unicast mode ensures the accurate transmission of instructions, reduces unnecessary network burdens, and improves the overall efficiency of the system. After receiving the instructions, each traffic cone performs the corresponding operations and broadcasts its own status information, such as battery power and location information, at regular intervals. After being received by other cones and the remote control terminal, this information is used to update the understanding of the status of other devices in the network, thereby achieving efficient collaborative work of the entire system.

[0064] In some embodiments, in order to ensure the standardization and accuracy of data transmission, the present invention designs a data packet, that is, a unified data packet format, which is suitable for the networking communication of the intelligent traffic cone system. The data packet format includes four main parts: traffic cone ID, information type, data content and CRC checksum. The traffic cone ID provides a unique identifier for each device, that is, the number of each cone, to ensure that the data can be accurately allocated and identified. The information type clearly indicates the category of the data content, such as battery power (01), vehicle speed (02), angle tilt (3), and position (04), making data processing more intuitive and orderly. The data content varies with the information type and directly describes the specific state value. Finally, the CRC checksum is included in each data packet to verify the integrity and correctness of the data during the transmission process, thereby preventing data damage or tampering. By adopting a standardized data packet format, the reliability and accuracy of data transmission are effectively improved, ensuring that data consistency is maintained in the communication between multiple traffic cones. For example, the data packet "02 04 3422 -11824 3C" can be parsed as follows: the traffic cone ID is 02, the information type 04 indicates that the data is location information, and the data content 3422 -11824 indicates the longitude and latitude data of longitude 34.22 and latitude -118.24. The longitude and latitude data uses four-digit scaling, that is, the actual longitude and latitude need to be divided by 100 to obtain the actual value. 3C is a CRC checksum to ensure the security and integrity of the data. Formatting not only optimizes the data processing process, but also greatly enhances the efficiency and reliability of the system in actual operation.

[0065] The present invention adopts comprehensive security measures including data verification and data encryption to ensure the security and integrity of data transmission in the intelligent traffic cone system. Each data packet is embedded with a CRC checksum to detect errors in the transmission process in real time and ensure the integrity and correctness of the data; once an error is found, the system automatically triggers the retransmission mechanism to ensure the reliable transmission of key data. In addition, the system uses advanced lightweight encryption algorithms to encrypt all key data, effectively preventing the data from being intercepted and tampered with during the transmission process. At the same time, an identity authentication mechanism is introduced to ensure that only authorized traffic cones and remote controls can join and participate in the network during device pairing and communication, thereby preventing illegal device access and potential data interference. These security measures together improve the stability and security of the system in a complex traffic management environment, ensuring the effective operation of the intelligent traffic cone system as a reliable high-tech solution in the field of traffic management.

[0066] In some embodiments, in order to ensure the stability of data transmission and reduce signal interference in the intelligent traffic cone system, the present invention adopts frequency band management and timing control strategies. In terms of frequency band management, the system uses the multi-channel support of the ESP-NOW protocol to assign different traffic cones to their own independent communication channels, effectively avoiding mutual interference between devices in close physical locations. In addition, the system can dynamically select or switch to a channel with lower interference according to the electromagnetic interference in the environment, thereby maintaining clear and stable communication. For timing control, the system assigns a specific transmission time window to each traffic cone to ensure that only a predetermined few devices perform data transmission at any time, greatly reducing the possibility of signal conflict. Specifically, a complete communication cycle is divided into several fixed-length time windows (each time window is 50 milliseconds), and each time window is assigned to one or more intelligent traffic cones. During the initialization pairing process, the remote control end assigns time windows according to the ID sequence of the traffic cone, for example, traffic cone 1 sends data within 0-50 milliseconds, traffic cone 2 sends data within 50-100 milliseconds, and so on. At the same time, the remote control end will periodically send a synchronization signal, including the current timestamp or cycle start mark, and each intelligent traffic cone adjusts its internal clock according to the received synchronization signal. These measures together improve the reliability of data transmission, reduce the overall energy consumption of the system, and optimize response speed and performance, enabling the smart traffic cone system to maintain efficient and stable operation in complex and changing operating environments.

[0067] The present application also discloses an intelligent traffic cone networking communication system based on the ESP-NOW protocol, including:

[0068] A control unit is used to assign a corresponding ID to each execution unit for pairing through the ESP-NOW protocol and transmit instructions through data packets;

[0069] The execution unit is used to execute corresponding actions according to the instructions to complete the networking.

[0070] In some embodiments, see Figure 2 The control unit is a remote control terminal, and the execution unit is a plurality of intelligent traffic cones.

[0071] Example 1: Traffic control at the accident site

[0072] At a highway accident scene, the remote control needs to quickly deploy multiple intelligent traffic cones to form a safety warning area. The remote control establishes a communication connection with each traffic cone through the ESP-NOW protocol, and each traffic cone is assigned a unique ID (such as 01 to 20). The remote control sends a general command in broadcast mode, instructing all traffic cones to enter emergency mode. After receiving the command, each traffic cone automatically adjusts its position to the preset point around the accident scene, and activates the LED warning light to remind the driver to pay attention to driving safety. In addition, the traffic cone is equipped with multiple sensors, such as GPS / Beidou sensors, which regularly transmit the collected data to the remote control, and the remote control uploads the location information to the AutoNavi Map App in a timely manner, realizing the real-time and accurate collection and release of road construction, accidents and closure control information. In this way, traffic cones not only respond quickly to emergencies, but also effectively guide traffic flow and enhance on-site safety.

[0073] Example 2: Intelligent Guidance in Road Construction Zones

[0074] In a city road construction area, a remote control terminal and ten smart traffic cones are deployed to optimize traffic management in the construction area. The remote control terminal sends adjustment instructions to each traffic cone in unicast mode, including the flashing frequency and color of the LED warning light to meet different visual warning needs. For example, near the construction area, the LED light may require a higher flashing frequency and a red warning light, while in a farther area, a lower flashing frequency and a yellow warning light can be used. In addition, the smart traffic cones exchange status and location information through point-to-point communication. Construction area managers can also monitor and adjust the status of each traffic cone in real time through the remote control terminal, quickly respond to any emergencies, and avoid traffic congestion and potential accidents. At the same time, point-to-point communication between traffic cones ensures the rapid transmission and sharing of information, improving the response speed and accuracy of the entire system.

[0075] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A traffic cone networking communication method based on ESP-NOW protocol, characterized in that: include: The remote control uses the ESP-NOW protocol to assign a corresponding ID to each smart traffic cone to complete the pairing; The remote control end transmits instructions to one or more IDs through data packets to control the movement of one or more intelligent traffic cones to achieve networking.

2. A traffic cone networking communication method based on ESP-NOW protocol according to claim 1, characterized in that: The remote control terminal assigns a corresponding ID to each smart traffic cone through the ESP-NOW protocol to complete the pairing, specifically including: S101: The remote control sends a pairing request to the smart traffic cone and sends its own MAC address at the same time; S102: The remote control terminal receives a response signal sent back by the smart traffic cone, and automatically numbers each smart traffic cone according to the time when the response signal is received; S103: The remote control terminal sends the number of each smart traffic cone to the corresponding smart traffic cone; S104: The remote control end receives a confirmation signal sent back by the remote control end, and pairing is completed.

3. The traffic cone networking communication method based on the ESP-NOW protocol according to claim 2, characterized in that: In S102, the smart traffic cone transmits a response signal and saves the MAC address of the remote control terminal at the same time.

4. The traffic cone networking communication method based on the ESP-NOW protocol according to claim 1, characterized in that: After the remote control terminal assigns a corresponding ID to each smart traffic cone through the ESP-NOW protocol, different smart traffic cones are assigned to their own independent communication channels.

5. The traffic cone networking communication method based on the ESP-NOW protocol according to claim 1, characterized in that: The format of the data packet includes a traffic cone ID, information type, data content and a CRC check code; The traffic cone ID is the number of each smart traffic cone; The information type is used to indicate the category of data content; The data content varies with the information type and is used to directly describe the specific status value; The CRC check code is used to verify the integrity and correctness of data during transmission.

6. The traffic cone networking communication method based on the ESP-NOW protocol according to claim 1, characterized in that: The remote control terminal transmits instructions via data packets; wherein the instructions are transmitted via a broadcast mode or a unicast mode; The broadcast mode is that the remote control terminal sends instructions to all smart traffic cones simultaneously; The unicast mode is used to send instructions to designated traffic cones.

7. The traffic cone networking communication method based on ESP-NOW protocol according to claim 1, characterized in that: The remote control terminal transmits instructions to one or more IDs through data packets to control the movement of one or more intelligent traffic cones to achieve networking, specifically: One or more intelligent traffic cones execute instructions according to the data packets transmitted by the remote control end to achieve networking, and the intelligent traffic cones periodically send their own status information.

8. The traffic cone networking communication method based on the ESP-NOW protocol according to claim 7, characterized in that: Specifically, the smart traffic cone sends its own status information at regular intervals by allocating a specific time window for sending status information to each smart traffic cone through the remote control end to achieve regular sending.

9. An intelligent traffic cone networking communication system based on ESP-NOW protocol, characterized in that: include: A control unit is used to assign a corresponding ID to each execution unit for pairing through the ESP-NOW protocol and transmit instructions through data packets; The execution unit is used to execute corresponding actions according to the instructions to complete the networking.

10. The intelligent traffic cone networking communication system based on ESP-NOW protocol according to claim 9, characterized in that: The control unit is a remote control terminal, and the execution unit is a plurality of intelligent traffic cones.

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