Vehicle-mounted wireless internet access device

Abstract

The utility model discloses a vehicle-mounted wireless internet access device, which comprises an MTK vehicle-mounted platform module for controlling and coordinating the work of each module of the device and processing network data, and a dual-frequency WiFi (Wireless Fidelity) module which is in communication connection with the MTK vehicle-mounted platform module and is used for transmitting and receiving the network data, the dual-frequency WiFi 5 module comprises a dual-frequency WiFi 5 chip, and the dual-frequency WiFi 5 chip is provided with a 2.4 GHz frequency band unit and a 5GHz frequency band unit; the antenna module is in communication connection with the dual-frequency WiFi 5 module and the MTK vehicle-mounted platform module and is used for enhancing transmitting and receiving of WiFi signals and realizing network signal coverage in the whole vehicle; the network optimization management module performs data interaction with the dual-frequency WiFi 5 module and the MTK vehicle-mounted platform module, and is used for monitoring the network state in real time and dynamically adjusting network parameters according to the connection condition of equipment in the vehicle and network requirements; according to the vehicle-mounted wireless internet access device provided by the utility model, the MTK vehicle-mounted platform is combined with the double-frequency WiFi (Wireless Fidelity) technology, so that the internet can stably cover the whole vehicle at a high speed through a WiFi network, and diversified network requirements in the vehicle are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to mobile communication technical field, concretely is a kind of vehicle wireless internet access device. BACKGROUND

[0002] In today's digital age, cars are no longer just a means of transportation, but gradually become a mobile intelligent space. With the growing demand for in-vehicle passengers for infotainment, online office, vehicle remote control and other functions, the importance of vehicle wireless internet access technology is increasingly prominent.

[0003] Traditional vehicle internet access methods mainly rely on early single-frequency WiFi modules or limited mobile network connection schemes. Single-frequency WiFi modules usually work in the 2.4GHz frequency band. Although the signal propagation distance in this band is relatively far, the bandwidth is limited and there are many interference sources, such as Bluetooth devices and other wireless sensors inside the vehicle, which can interfere with the signal. When multiple passengers in the vehicle use smart devices to connect to the network for video playback, large file downloads or online games and other data-intensive operations at the same time, the network speed will decrease significantly, and problems such as video lag and game delay will occur frequently, which cannot meet the user's demand for smooth network experience. Moreover, due to the metal shell and complex internal structure of the vehicle, the coverage range and signal strength of the single-frequency signal inside the vehicle are not uniform, often resulting in weak or no signal in some areas.

[0004] In addition, some vehicles use mobile network connection methods such as 3G or part of the 4G network, which have relatively low transmission rates. When facing high-bandwidth applications such as high-definition map downloads and real-time video conferences, they are not up to the task. Furthermore, the platforms used by traditional vehicle internet access devices have limitations in processing power and network optimization. They often cannot effectively manage and distribute network traffic, and it is difficult for them to quickly adapt to the changing network environment during vehicle travel, such as when the vehicle is traveling at high speed through different signal areas. They cannot adjust network parameters in time to maintain stable connection. These problems seriously restrict the development and application of vehicle networks, so there is an urgent need for a new vehicle wireless internet access device to solve the above problems and provide stable, high-speed and whole-vehicle coverage network services for in-vehicle passengers. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of vehicle wireless internet access device, by adopting MTK vehicle platform and double-frequency WiFi5 technology combination, realize internet through WiFi network stable, high speedly cover whole vehicle, satisfy the network demand of diversification in vehicle.

[0006] The utility model is realized as follows:

[0007] A kind of vehicle wireless internet access device, comprising:

[0008] An MTK vehicle platform module is used for controlling and coordinating the work of each module of the device and processing network data, the MTK vehicle platform module comprises a circuit board and an MTK vehicle chip arranged on the circuit board, the MTK vehicle chip is integrated with a multi-core processor, and has a built-in memory management unit and a cache unit;

[0009] A dual-frequency WiFi5 module is connected in communication with the MTK vehicle platform module and is used for realizing the transceiving of network data; the dual-frequency WiFi5 module comprises a dual-frequency WiFi5 chip, the dual-frequency WiFi5 chip has a 2.4 GHz frequency band unit and a 5 GHz frequency band unit;

[0010] An antenna module is connected in communication with the dual-frequency WiFi5 module and the MTK vehicle platform module and is used for enhancing the transmission and reception of WiFi signals and realizing the network signal coverage of the whole vehicle;

[0011] A network optimization management module is used for realizing the real-time monitoring of network states and dynamically adjusting network parameters according to the connection conditions of in-vehicle devices and network demands by interacting with the dual-frequency WiFi5 module and the MTK vehicle platform module.

[0012] Further, a power management module is further included, the power management module comprises a step-down converter, a step-up converter and a linear voltage regulator, and is used for providing stable power supply for the whole vehicle wireless network device and performing power monitoring and low-power consumption management.

[0013] Further, the MTK vehicle platform module has a temperature detection unit and is electrically connected with a cooling fan.

[0014] Further, the dual-frequency WiFi5 module is connected in communication with the MTK vehicle platform module through a high-speed data bus to realize stable and reliable data transmission connection.

[0015] Further, the model of the step-down converter is any one of LM2596, LM2576, MP1584EN and TPS5430, the model of the step-up converter is an XL series step-up converter, and the model of the linear voltage regulator is any one of AMS1117, JY1117 and MXT1117.

[0016] Further, the MTK vehicle chip uses a vehicle chip with a model of MT8665 or a model of MT8666, and the dual-frequency WiFi5 chip uses a dual-frequency WiFi5 chip with a model of RTL8811BU, a model of RTL8812CU or a model of MT7662U.

[0017] Further, the antenna module comprises an omnidirectional antenna arranged on the roof of the vehicle and a directional antenna arranged at a specific position in the vehicle.

[0018] Further, the network optimization management module comprises a network processor, which uses an Intel IXP series network processor or a network processor of EZchip NP-1.

[0019] Compared with the prior art, the vehicle-mounted wireless Internet device provided by the utility model realizes that the Internet stably and rapidly covers the whole vehicle through the WiFi network, and satisfies diversified network demand in the vehicle by combining the MTK vehicle-mounted platform with the dual-frequency WiFi5 technology. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is the electric control structure block diagram of the utility model. DETAILED DESCRIPTION

[0021] In the utility model, unless another explicit provision and limitation, the terms "mount", "connect", "joint", "fix" and other terms should be broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through the intermediate medium, can be the communication inside two elements or the interaction relationship of two elements. For ordinary skilled in the art, the above terms can be understood according to the specific meaning of the utility model.

[0022] The following is further described in conjunction with the drawings and specific embodiments:

[0023] As Figure 1 The vehicle-mounted wireless Internet device comprises an MTK vehicle-mounted platform module, a dual-frequency WiFi5 module, an antenna module, a network optimization management module and a power management module. The MTK vehicle-mounted platform module is used to control and coordinate the work of each module of the device and process network data, and the MTK vehicle-mounted platform module comprises a circuit board and an MTK vehicle-mounted chip arranged on the circuit board. The MTK vehicle-mounted chip uses a vehicle-mounted chip produced by MediaTek, which is model MT8665 or model MT8666. Such MTK vehicle-mounted chips integrate a multi-core processor, and are internally provided with a memory management unit and a cache unit. The multi-core processor can quickly process network data and run various network protocols. The internally provided memory management unit and cache unit help to improve the read and write speed of data and ensure the smooth running of the system. At the same time, such MTK vehicle-mounted chips are also provided with rich interfaces, such as USB, SPI, UART, etc., which facilitate the connection and communication with other modules, and realize efficient control and coordination of the whole vehicle-mounted wireless Internet device.

[0024] The dual-band WiFi5 module is used to implement the transmission and reception of network data. The dual-band WiFi5 module is connected to the MTK vehicle platform module through a high-speed data bus for stable and reliable data transmission connection. The dual-band WiFi5 module includes a dual-band WiFi5 chip, and the dual-band WiFi5 chip uses a dual-band WiFi5 chip with model number RTL8811BU or model number RTL8812CU or model number MT7662U. These dual-band WiFi5 chips have a 2.4GHz frequency band unit and a 5GHz frequency band unit, i.e. the dual-band WiFi5 chip supports 2.4GHz and 5GHz dual-band communication. In the 2.4GHz frequency band, stable basic network coverage can be provided, which is suitable for connecting some devices that do not require high bandwidth but require signal penetration, such as some simple vehicle sensors. In the 5GHz frequency band, it has higher transmission rate, which can meet the needs of high-definition video transmission, large file download and other high-speed data services. These dual-band WiFi5 chips internally integrate power amplifiers and low-noise amplifiers, which can enhance the transmission and reception capabilities of signals and improve the coverage and stability of the network. At the same time, it is equipped with an advanced channel selection algorithm, which can automatically avoid interference channels and optimize network connection quality.

[0025] The antenna module is connected in communication with the dual-band WiFi5 module and the MTK vehicle platform module, and the antenna module includes an omnidirectional antenna arranged on the roof of the vehicle and a directional antenna arranged at a specific position inside the vehicle. The omnidirectional antenna can ensure uniform signal coverage within a certain range around the vehicle, while the directional antenna is used to enhance coverage in areas with weak signals inside the vehicle. The antenna can use a high-gain ceramic antenna, which can effectively improve the efficiency of signal transmission and reception and reduce signal attenuation. Therefore, by arranging the above antenna module, the transmission and reception of WiFi signals can be effectively enhanced, and network signal coverage inside the vehicle can be realized.

[0026] The network optimization management module interacts with the dual-band WiFi5 module and the MTK vehicle platform module for data exchange, and is used to monitor the network state in real time and dynamically adjust the network parameters according to the connection of devices inside the vehicle and the network demand. The network optimization management module includes a network processor, and the network processor uses an Intel IXP series network processor or a network processor with signal EZchip NP-1. The network processor can monitor the connection state, signal strength, data flow, number of device connections and other parameters of the network in real time. According to these parameters, the network parameters such as channel selection, transmission power and bandwidth allocation of the dual-band WiFi5 module are dynamically adjusted by using the built-in intelligent algorithm to achieve the optimal network performance. For example, when multiple devices inside the vehicle are detected to simultaneously play high-definition video, the network optimization management module will automatically increase the bandwidth allocation of the 5GHz frequency band and appropriately increase the transmission power to ensure the smoothness of video playback.

[0027] The power management module comprises electronic components such as a step-down converter, a step-up converter and a linear voltage regulator. The model of the step-down converter is any one of LM2596, LM2576, MP1584EN and TPS5430, the model of the step-up converter is XL series step-up converters such as XL6008, XL6009, XL6012 and the like, and the model of the linear voltage regulator is any one of AMS1117, JY1117 and MXT1117. The step-down converter is used to convert the high voltage of the vehicle power supply into stable DC low voltage suitable for the operation of each module, the step-up converter is used to provide additional voltage boost for some components with higher voltage requirements when needed, and the linear voltage regulator is used to further accurately stabilize the voltage, so as to ensure that each module can still work normally in the case of vehicle power supply fluctuation.

[0028] In some exemplary embodiments, the power management module is also integrated with a power monitoring circuit, which can monitor the battery power and power state in real time, automatically enter a low-power standby mode when the vehicle is turned off or the network is not used for a long time, and reduce power consumption.

[0029] Therefore, by setting the power management module, stable power supply can be provided for the entire vehicle wireless network device, and power monitoring and low-power management can be performed.

[0030] Working principle of the utility model:

[0031] Firstly, in the hardware assembly process of the entire device, the MTK vehicle platform module is first fixed on the special bracket in the vehicle center console, the MTK vehicle platform module is provided with a temperature detection unit such as a temperature sensor, and is electrically connected with a cooling fan, so as to ensure good cooling conditions. The MTK vehicle platform module is electrically connected with the power management module and the network optimization management module through welding or connectors, and is connected with the corresponding interface of the dual-frequency WiFi5 module through a wire, so as to ensure the stability and reliability of data transmission. The antenna interface of the dual-frequency WiFi5 module is connected with the antenna module through a coaxial cable, according to the actual layout of the vehicle and the signal test result, the installation position and angle of the antenna are reasonably adjusted, so as to realize the best signal coverage effect. The power management module is directly connected with the power system of the vehicle, provides stable DC power for the entire device, and monitors the power state in real time according to the preset power management strategy, automatically cuts off unnecessary power supply after the vehicle stops running and there is no data transmission for a period of time, so that the device enters a low-power standby mode, so as to save the battery power of the vehicle.

[0032] Secondly, in terms of software operation, after the MTK vehicle-mounted platform module is started, it first initializes and configures the dual-frequency WiFi5 module, loads preset network parameters and drivers, so that it can work normally and search for surrounding WiFi network signals or 4G, 5G network signals, and if necessary, a dedicated mobile hotspot terminal can be set up to provide stable and continuous network signals. The network optimization management module is started at the same time and establishes a communication connection with the MTK vehicle-mounted platform module, and starts to monitor the network state in real time. When the smart devices of passengers in the vehicle are connected to the vehicle-mounted WiFi network, the network optimization management module obtains the connection information and network requirements of the devices through interaction with the dual-frequency WiFi5 module, dynamically adjusts the working parameters of the dual-frequency WiFi5 module according to the built-in optimization algorithm and preset rules. For example, if it is detected that there is a device in the vehicle that is performing online gaming, the network optimization management module will prioritize the network delay requirements of the device, and through methods such as adjusting the channel and allocating more bandwidth resources, it will ensure the smooth operation of the game. At the same time, the network optimization management module will also regularly evaluate and analyze the network performance, and automatically optimize the network parameters according to the evaluation results to adapt to the changing network environment and the use of devices in the vehicle during driving.

[0033] Finally, in actual use scenarios, when the vehicle is started, the vehicle-mounted wireless Internet access device is automatically turned on and completes the initialization process. After the passengers enter the vehicle, they only need to search for and connect to the vehicle-mounted network on the smart device to enjoy stable and high-speed network services. Whether on urban roads or during long-distance travel, video conferencing, online video watching, and large file downloading can be carried out smoothly, greatly improving the informatization experience and convenience in the vehicle.

[0034] In summary, the vehicle-mounted wireless Internet access device provided by the present application combines the MTK vehicle-mounted platform with the dual-frequency WiFi5 technology, realizes stable and high-speed coverage of the entire vehicle through the WiFi network, and meets the diversified network needs in the vehicle.

[0035] The above is only a preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A car-mounted wireless Internet device, characterized by comprising: The application relates to a vehicle-mounted wireless network device, which comprises an MTK vehicle-mounted platform module, a dual-frequency WiFi5 module, an antenna module and a network optimization management module. The MTK vehicle-mounted platform module is used for controlling and coordinating the work of various modules of the device and processing network data, and comprises a circuit board and an MTK vehicle-mounted chip arranged on the circuit board; the MTK vehicle-mounted chip is integrated with a multi-core processor and internally provided with a memory management unit and a cache unit. The dual-frequency WiFi5 module is connected in communication with the MTK vehicle-mounted platform module and is used for realizing the transmission and reception of network data; the dual-frequency WiFi5 module comprises a dual-frequency WiFi5 chip, and the dual-frequency WiFi5 chip has a 2.4GHz frequency band unit and a 5GHz frequency band unit. The antenna module is connected in communication with the dual-frequency WiFi5 module and the MTK vehicle-mounted platform module and is used for enhancing the transmission and reception of WiFi signals and realizing the network signal coverage of the whole vehicle. The network optimization management module is used for realizing the real-time monitoring of network states and dynamically adjusting network parameters according to the connection states of in-vehicle equipment and network demands.

2. The device according to claim 1, wherein The device further comprises a power management module, which comprises a step-down converter, a step-up converter and a linear voltage stabilizer and is used for providing stable power supply for the whole vehicle-mounted wireless network device and realizing power monitoring and low-power consumption management.

3. The vehicle-mounted wireless network access device according to claim 2, wherein, The MTK vehicle-mounted platform module is provided with a temperature detection unit and is electrically connected with a cooling fan.

4. The vehicle-mounted wireless network access device according to claim 2, wherein, The dual-frequency WiFi5 module is connected in communication with the MTK vehicle-mounted platform module through a high-speed data bus so as to realize stable and reliable data transmission connection.

5. The vehicle-mounted wireless network access device according to claim 2, wherein, The model of the step-down converter is any one of LM2596, LM2576, MP1584EN and TPS5430, the model of the step-up converter is an XL series step-up converter, and the model of the linear voltage stabilizer is any one of AMS1117, JY1117 and MXT1117.

6. The vehicle-mounted wireless network access device according to claim 1, wherein, The model of the MTK vehicle-mounted chip is MT8665 or MT8666, and the model of the dual-frequency WiFi5 chip is RTL8811BU, RTL8812CU or MT7662U.

7. The vehicle-mounted wireless network access device according to claim 1, wherein, The antenna module comprises an omnidirectional antenna arranged on a roof and a directional antenna arranged at a specific position in a vehicle.

8. The vehicle-mounted wireless network access device according to claim 1, wherein, The network optimization management module comprises a network processor, and the network processor uses an Intel IXP series network processor or a network processor with a signal of EZchip NP-1.

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