Communication detection equipment circuit
The V2X communication equipment designed with combined circuits solved the problem of high-temperature failure in harsh environments, and achieved stable operation of the equipment and driving safety in high-temperature environments.
Patent Information
- Application Number
- CN202423273776.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing V2X communication equipment is prone to high-temperature failures in harsh outdoor environments, leading to equipment malfunctions and an inability to effectively alert and warn drivers, thus affecting driving safety.
The circuit design adopts a combination of V2X communication main control module, wired communication module and power supply module, including AG15 module, antenna interface module, level conversion module and power filtering module. Different operating voltages are provided through level conversion and power filtering. Combined with two step-down circuits, overvoltage, overcurrent and overheat protection are provided to ensure stable operation of the equipment.
The equipment can operate stably in harsh outdoor environments, ensuring the effectiveness of V2X communication and driving safety.
Smart Images
Figure CN223584209U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of intelligent transportation communication technology, and more specifically, relates to a communication detection device circuit. Background Technology
[0002] V2X (Vehicle to X) is a typical technology in the field of intelligent transportation. It enables direct, fast, and reliable data exchange and transmission between vehicles and between vehicles and roadside equipment. V2X technology can help drivers know the road conditions ahead when they are not in sight or their vision is obstructed, so as to remind and warn drivers and ensure traffic efficiency and driving safety.
[0003] When existing V2X communication equipment operates in harsh outdoor environments, such as under the scorching sun and in high temperatures, the internal working heat of the V2X communication equipment accumulates, making the equipment prone to high-temperature failures. When the equipment malfunctions, it cannot effectively remind or warn the driver, thus failing to guarantee driving safety. Utility Model Content
[0004] To address the aforementioned problems and technical deficiencies, the embodiments of this application adopt the following technical solution: a communication detection device circuit, comprising: a V2X communication main control module, a wired communication module, and a power supply module;
[0005] The V2X communication main control module is electrically connected to the wired communication module;
[0006] The power supply module is electrically connected to the V2X communication main control module and the wired communication module;
[0007] The V2X communication master control module is used to receive V2X data and process it.
[0008] The wired communication module is used to convert messages into TCP / IP protocol packets to enable communication with the cloud;
[0009] The power supply module is used to provide operating current to the V2X communication main control module and the wired communication module.
[0010] Preferably, the V2X communication main control module includes: an AG15 module, an antenna interface module, a level conversion module, and a power filtering module, all of which are electrically connected to the AG15 module.
[0011] Furthermore, the AG15 module is a baseband processor platform using an ARM Cortex-A7 core, communicates using the 3GPPRelease 14 protocol, and operates at a voltage of 3.8V.
[0012] Furthermore, the antenna interface module is equipped with two C-V2X interfaces and one GNSS interface, and the port resistance of the antenna interface module is 50 ohms.
[0013] Furthermore, the level conversion module uses an integrated chip TXS0104 and is equipped with a TVS diode to convert the signal level between the V2X communication main control module and the wired communication module.
[0014] Furthermore, the power filtering module has two voltage domains: one provides a 5V power supply for the AG15 module's radio frequency power supply, and the other provides a 3.8V power supply for the AG15 module's baseband power supply.
[0015] Both voltage domains use 100μF filter capacitors, with three multilayer ceramic chip capacitors connected in parallel. The three multilayer ceramic chip capacitors are 100nF, 33pF and 10pF respectively.
[0016] Preferably, the wired communication module uses the W5500 integrated chip, which communicates with the AG15 module via the SPI protocol. The W5500 integrated chip is powered by 3.3V, uses a 25MHz active crystal oscillator, and supports auto-negotiation mode, power-down mode, and wake-up network function.
[0017] Furthermore, the power supply module includes two step-down circuits;
[0018] One path steps down the 12V DC power supply to a 3.8V DC voltage source. The 3.8V DC voltage source first powers the AG15 module in the V2X communication main control module. The 3.8V power supply is then stepped down to 3.3V through the Schottky diode SS12 to power the W5500 integrated chip in the wired communication module.
[0019] The other path reduces the 12V DC power supply to a 5V DC voltage source to power the AG15 module when it is performing signal radio frequency.
[0020] Both step-down circuits use the TPS54560-Q1 step-down chip for overvoltage protection, overcurrent protection, and overheat protection.
[0021] Compared with the prior art, the beneficial effects of the embodiments of this application are as follows:
[0022] This application incorporates a level conversion module and a power filtering module into the V2X communication main control module. The level conversion module converts the signal levels between the V2X communication main control module and the wired communication module, while the power filtering module provides two operating voltages for the AG15 module's RF power supply and baseband power supply, respectively, providing different operating voltages for different operating modes. Simultaneously, the power supply module performs voltage conversion through two step-down circuits to meet the two operating modes, achieving overvoltage protection, overcurrent protection, and overheat protection, meeting the requirements for stable operation in harsh outdoor environments, and ensuring driving safety. Attached Figure Description
[0023] In the attached diagram:
[0024] Figure 1 This is a circuit system structure diagram of an embodiment of this application;
[0025] Figure 2 This is a circuit diagram of the V2X communication main control module according to an embodiment of this application;
[0026] Figure 3 This is a circuit diagram of a wired communication module according to an embodiment of this application;
[0027] Figure 4 This is a circuit diagram of the power supply module according to an embodiment of this application. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this application, but not all embodiments. Generally, the components of the embodiments of this application described and shown in the accompanying drawings can be arranged and designed in various different configurations.
[0029] Example
[0030] like Figure 1 As shown, a communication testing device circuit includes: a V2X communication main control module, a wired communication module, and a power supply module;
[0031] The V2X communication main control module is electrically connected to the wired communication module;
[0032] The power supply module is electrically connected to the V2X communication main control module and the wired communication module;
[0033] The V2X communication master control module is used to receive V2X data and process it.
[0034] like Figure 2The V2X communication main control module includes an AG15 module, an antenna interface module, a level conversion module, and a power filter module. The antenna interface module, the level conversion module, and the power filter module are all electrically connected to the AG15 module.
[0035] The AG15 module is a baseband processor platform using an ARM Cortex-A7 core, communicates using the 3GPP Release 14 protocol, and supports direct communication with C-V2X PC5; the AG15 module operates at 3.8V.
[0036] The antenna interface module has two C-V2X interfaces and one GNSS interface, and the port resistance of the antenna interface module is 50 ohms.
[0037] The level conversion module uses the integrated chip TXS0104 and is equipped with a TVS diode to convert the signal level between the V2X communication main control module and the wired communication module.
[0038] The power filtering module has two voltage domains: one provides a 5V power supply for the module's RF power supply, and the other provides a 3.8V power supply for the module's baseband power supply.
[0039] Both voltage domains use low-ESR 100μF filter capacitors, with three multilayer ceramic chip capacitors connected in parallel. The three multilayer ceramic chip capacitors are 100nF, 33pF and 10pF respectively, to ensure the stability of the power supply.
[0040] The wired communication module is used to convert messages into TCP / IP protocol packets to enable communication with the cloud.
[0041] like Figure 3 The wired communication module uses the W5500 integrated chip, which communicates with the AG15 module via the SPI protocol. The W5500 integrated chip is powered by 3.3V, uses a 25MHz active crystal oscillator, and supports auto-negotiation working mode (10 / 100-Based full-duplex / half-duplex), power-down mode, and Wake-on-LAN function.
[0042] The power supply module provides operating current to the V2X communication main control module and the wired communication module.
[0043] like Figure 4 The power supply module includes two step-down circuits.
[0044] One path steps down the 12V DC power supply to a 3.8V DC voltage source. The 3.8V DC voltage source first powers the AG15 module in the V2X communication main control module. The 3.8V power supply is then stepped down to 3.3V through the Schottky diode SS12 to power the W5500 integrated chip in the wired communication module.
[0045] The other path reduces the 12V DC power supply to a 5V DC voltage source to power the AG15 module when it is transmitting signals via radio frequency.
[0046] Both step-down circuits use the TPS54560-Q1 step-down chip for overvoltage protection, overcurrent protection, and overheat protection, meeting the requirements for stable operation in harsh outdoor environments.
[0047] The power supply module provides power to the V2X communication main control module and the wired communication module.
[0048] When the V2X communication master control module receives a V2X signal, the ARM Cortex-A7 core in the AG15 module parses and processes the V2X signal. The operating voltage is 3.8V. The processed signal is converted by the level conversion module and transmitted to the wired communication module. The operating voltage is 3.3V. The wired communication module performs network communication and uploads the signal to the cloud server.
[0049] When the V2X communication main control module transmits signals via antenna, the operating voltage is 5V.
[0050] The embodiments described above are merely preferred embodiments of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this application. It should be noted that those skilled in the art can make various modifications, improvements, and substitutions without departing from the concept of this application, and these all fall within the protection scope of this application.
Claims
1. A communication detection device circuit, characterized in that, include: V2X communication main control module, wired communication module and power supply module; The V2X communication main control module is electrically connected to the wired communication module; The power supply module is electrically connected to the V2X communication main control module and the wired communication module; The V2X communication master control module is used to receive V2X data and process it. The wired communication module is used to convert messages into TCP / IP protocol packets to enable communication with the cloud; The power supply module is used to provide operating current to the V2X communication main control module and the wired communication module.
2. The communication detection device circuit according to claim 1, characterized in that, The V2X communication main control module includes: an AG15 module, an antenna interface module, a level conversion module, and a power filter module. The antenna interface module, the level conversion module, and the power filter module are all electrically connected to the AG15 module.
3. The communication detection device circuit according to claim 2, characterized in that, The AG15 module is a baseband processor platform using an ARM Cortex-A7 core, communicates using the 3GPP Release 14 protocol, and operates at a voltage of 3.8V.
4. The communication detection device circuit according to claim 2, characterized in that, The antenna interface module is equipped with two C-V2X interfaces and one GNSS interface, and the port resistance of the antenna interface module is 50 ohms.
5. The communication detection device circuit according to claim 2, characterized in that, The level conversion module uses the integrated chip TXS0104 and is equipped with a TVS diode to convert the signal level between the V2X communication main control module and the wired communication module.
6. The communication detection device circuit according to claim 2, characterized in that, The power filtering module has two voltage domains: one provides a 5V power supply for the AG15 module's radio frequency power supply, and the other provides a 3.8V power supply for the AG15 module's baseband power supply. Both voltage domains use 100μF filter capacitors, with three multilayer ceramic chip capacitors connected in parallel. The three multilayer ceramic chip capacitors are 100nF, 33pF, and 10pF, respectively.
7. The communication detection device circuit according to claim 1, characterized in that, The wired communication module uses the W5500 integrated chip, which communicates with the AG15 module via the SPI protocol. The W5500 integrated chip is powered by 3.3V and uses a 25MHz active crystal oscillator. It supports auto-negotiation mode, power-down mode and wake-up network function.
8. The communication detection device circuit according to claim 2, characterized in that, The power supply module includes two step-down circuits; One path steps down the 12V DC power supply to a 3.8V DC voltage source. The 3.8V DC voltage source first powers the AG15 module in the V2X communication main control module. The 3.8V power supply is then stepped down to 3.3V through the Schottky diode SS12 to power the W5500 integrated chip in the wired communication module. The other path reduces the 12V DC power supply to a 5V DC voltage source to power the AG15 module when it is performing signal radio frequency. Both step-down circuits use the TPS54560-Q1 step-down chip for overvoltage protection, overcurrent protection, and overheat protection.