KR-20260067007-A - Vehicle Multi-Gateway System Using WiFi Halow

Abstract

The present invention relates to a multi-gateway system for a vehicle using a Wi-Fi Halo, wherein the system is equipped with a Wi-Fi Halo capable of wireless communication on the inside of a main body, receives wireless signals output from each control element of the vehicle, and determines whether the output signal of each control element of the vehicle is normal by comparing it with a setting value stored in memory. Conventional vehicle test equipment is cumbersome because it requires connecting signals output from each control element of the vehicle to a wired cable to determine whether the signal is normal. Therefore, to improve this, the present invention proposes a multi-gateway system for a vehicle using a Wi-Fi Halo, which is configured in a gateway system that is placed in a vehicle and tests the vehicle using OTA (over-the-air). The gateway system comprises: a plurality of RS485 ports, RS232 ports, relay ports, and LAN ports that receive electrical signals generated in the vehicle via wired connections; an antenna that wirelessly transmits an output signal of at least one of a control element, including a vehicle control unit, a key controller, a brake system, a tire control unit, or a sensor unit, based on information regarding the vehicle's OTA update (Over-The-Air Update); and a Wi-Fi Halo that receives the electrical signal transmitted from the antenna wirelessly. The vehicle multi-gateway system using a Wi-Fi Halo according to the present invention is equipped with multiple ports for a conventional wired connection method, and also has a Wi-Fi Halo for wireless communication on the inside, so that it can wirelessly receive output signals from each control element of the vehicle and immediately determine whether it is functioning normally. In addition, by transmitting and receiving wireless signals with an external web server through the Wi-Fi Halo, it has the effect of determining the functioning status of the vehicle in real time from the outside, and has the effect of immediately updating data that changes by vehicle/specification to the multi-gateway.

Inventors

• 김창덕
• 박송희

Assignees

• (주)경인씨엔에스

Dates

Publication Date

20260512

Application Date

20241105

Claims (4)

1. In a gateway system deployed within a vehicle and testing the vehicle using OTA (over-the-air), An antenna (60) is provided in the vehicle to wirelessly transmit an output signal of at least one of a control element including a vehicle control unit (10), a key controller (20), a brake system (30), a tire control unit (40), or a sensor unit (50) based on information regarding an OTA update (Over-The-Air Update). A plurality of RS485 ports (101), RS232 ports (102), relay ports (105), and LAN ports (106) that receive electrical signals generated from the vehicle via wired connection; WIFI Halwo (120) that wirelessly receives the electrical signal transmitted from the above antenna (60); A multi-gateway system for vehicles using a Wi-Fi halo, characterized by being configured to include
2. In Article 1, A multi-gateway system for a vehicle using a Wi-Fi Halo, characterized in that a signal received from the above-mentioned WIFI Halow (120) is transmitted to a main processor (110), and the main processor (110) determines whether the received signal corresponds to a normal signal within the vehicle-specific/specific setting value stored in the memory (140) and outputs it to a display unit (150).
3. In Article 1, A multi-gateway system for a vehicle using a Wi-Fi Halo, characterized in that the above-mentioned WIFI Halow (120) transmits a wireless signal transmitted through the vehicle’s antenna (60) to an external web server (200) to determine whether a normal signal is output from each control element of the vehicle.
4. In Article 1, A multi-gateway system for vehicles using Wi-Fi Halo, characterized in that the above memory (140) stores normal signal ranges for each specification according to various vehicles in a table format, and an external web server (200) can modify and change the data in the table stored in the above memory (140).

Description

Vehicle Multi-Gateway System Using WiFi Halow The present invention relates to a multi-gateway system for a vehicle using a Wi-Fi Halo, which is equipped with a Wi-Fi Halo capable of wireless communication on the inside of a main body, receives wireless signals output from each control element of the vehicle, and determines whether the output signal of each control element of the vehicle is normal by comparing it with a setting value stored in a web server or memory. Conventional vehicle test equipment connects the signals output from each control element of the vehicle to a wired cable to determine whether the signal is normal. To achieve this, there was a problem in that cables connected to the control elements of each vehicle had to be provided separately and connected individually every time a test was performed. To improve this, the proposed application publication No. 10-2020-0058712 (Title of invention: Multi-protocol interface device and method for TTCN-3 test framework for automobile data testing, and recording medium for performing said method) (hereinafter referred to as 'prior art') relates to a multi-protocol interface device and method for automobile data testing and a recording medium for performing said method, which are implemented to test ECUs inside an automobile that exchange data using various protocols. The technical concept includes: an input unit that receives an automobile test signal generated by a test application program for automobile data testing; a signal filter unit that distinguishes and transmits the type of data input to said input unit; a protocol converter unit that converts the automobile test signal transmitted from said signal filter unit into a protocol suitable for the ECU (Electronic Control Unit) to test the corresponding signal; and an output unit that receives the signal converted by said protocol converter unit and outputs it to the ECU as a physical signal for communication. However, the aforementioned prior art had the problem that a separate protocol was required for each vehicle, and that hardware and software development was necessary for converting each protocol. Wireless communication is growing, and the latest digital communication systems such as LTE or 4G have advanced significantly with MIMO (Multiple Input Multiple Output) and OFDM (Orthogonal Frequency Domain Multiplexing). Wireless communication to cars, buses, and other vehicles, generally referred to as automotive applications, is an important new market sector that will continue to grow rapidly. The purpose of such wireless communication is not only to provide entertainment to passengers but also to offer services that enable safer driving. Autonomous vehicle applications, such as recently developed self-driving cars that minimize human interaction, will soon become a reality on the roads. Numerous potential benefits of autonomous vehicles have been identified, such as reduced traffic congestion, increased road capacity, and improved environmental footprints. However, to achieve these desired improvements, autonomous vehicle applications require reliable and stable wireless connectivity to existing networks. Therefore, there is an urgent need for reliable and cost-effective Over-The-Air (OTA) wireless communication testing for cars and other automotive applications, as well as between vehicles on the road. Meanwhile, Wi-Fi Halo is a term used by the Wi-Fi Alliance to refer to devices equipped with the low-power Wi-Fi standard (IEEE802.11ah), and most Wi-Fi uses the 2.4GHz or 5GHz frequency bands. However, since the Wi-Fi HaLow standard uses the sub-1GHz band, it enables longer transmission and wider coverage than conventional Wi-Fi, and also has excellent characteristics for penetrating obstacles such as doors and walls. In addition, it consumes very little power. The maximum service distance of Wi-Fi HaLow is about 1km, providing service coverage about 30 times greater than conventional Wi-Fi. Wi-Fi HaLow can be used in Internet of Things (IoT) devices that require low power, such as smart homes, connected cars, and wearable devices. Low-power Bluetooth is a Bluetooth technology capable of transmitting and receiving low-power, low-capacity data in the 2.4GHz frequency band with a range of about 10 meters. The biggest feature of Low-power Bluetooth (BLE) is that its duty cycle is only a few milliseconds (ms), and it spends most of its time in sleep mode, resulting in very low power consumption. It uses a bandwidth of 2MHz and supports a transmission speed of 1Mbps, but due to the short duty cycle, the average transmission speed is less than 200kbps. In particular, when the average transmission speed is 10kbps or less, power efficiency is very high, allowing for use for more than a year without battery replacement. It is suitable for use in micro-IoT devices with limited power supply, such as watches, toys, beacons, and wearable devices. Because the use of low-power Bluetooth can drastically red