“The blind spots of large vehicles and the problem of single solution function were analyzed in detail, and it was found that the traditional vehicle marking machine met the needs of supervision but had poor interactive experience. It shows that the overall online rate of the standard machine is not high.
Abstract: The blind spots of large vehicles and the problem of single solution function are analyzed in detail, and it is found that the traditional marking machine meets the needs of supervision but has a poor sense of interactive experience. behavior, indicating that the overall online rate of the standard machine is not high. This paper proposes a new type of driving safety system, which can connect up to 8 channels of video, integrates 360 panoramic algorithm to solve the problem of vehicle visual blind spots, supports reversing Display, and provides video and local playback functions. And view real-time road conditions, integrate ADAS and DMS that meet regulatory requirements, support JT/T808 and JT/T1078 standard protocols, and realize remote monitoring. The system not only meets the various needs of drivers, but also meets the regulatory requirements of the traffic control department. It has high integration, rich functions, and can complete functions that require a variety of devices. Conflicts with regulators can reduce traffic accident rates.
As my country’s economy continues to grow rapidly, large vehicles, including large trucks, buses, and public transport, are rapidly increasing.These vehicles have some common characteristics, such as large size, high body height, large turning radius, large inner wheel difference, and more blind spots when driving[1-2].In recent years, there have been more and more traffic accidents caused by the problem of large vehicle blind spots. Therefore, it is particularly important to solve the problem of large vehicle blind spots.. There are also some devices on the market that can solve driving blind spots independently, such as Electronic exterior mirrors and 360 panoramic views, but they have single functions, low integration and poor scalability. In addition, due to regulatory needs, the Ministry of Communications requires the installation of equipment that conforms to the JT/T808 and JT/T1078 standards for road transport vehicles, and supports active safety ADAS, etc. The so-called department label machine. It generally does not have a Display screen, the driver cannot directly operate the device, lacks a sense of interactive experience, and cannot play back video locally, which is very inconvenient.The local standard machine is more focused on technical supervision, and the driver has a certain rejection of the local standard machine, intentionally blocking, destroying the satellite positioning terminal, and evading monitoring behaviors occur from time to time. Strong, unable to remind and correct the driver’s illegal and illegal behavior in real time, there are also certain difficulties in supervision.
This paper proposes a new driving safety system based on Qualcomm MSM8953, which supports up to 8 channels of video access, introduces a 360-degree panoramic algorithm to solve the visual blind spot of the vehicle, and is equipped with a 12.3-inch (1 inch = 2.54 cm) high-definition display screen, which has a clear display effect and supports reversing display. , and provides DVR recording function, the machine can quickly play back the recording in case of emergency, and the system with 4G full Netcom can support online maps, which is convenient for navigation and viewing real-time road conditions. Supports ADAS and DMS that meet regulatory active safety requirements, as well as JT/T808 and JT/T1078 standard protocols for easy platform regulation. The design of this system solves the driver’s blind spot problem, meets the needs of reversing safety, viewing live navigation, local playback of multi-channel video recordings, etc., and supports JT/T808 and JT/T1078 standard protocols and active safety ADAS and DMS to meet regulatory needs. The equipment has a high degree of integration and can complete functions that require a variety of equipment. It is economical and practical. It can balance the contradiction between the driver and the supervision, and truly reduce the traffic accident rate with technology, which is beneficial to the country and the people.
1 Hardware design of new driving safety system
This paper proposes a set of intelligent system based on Qualcomm 8953 platform, which is rich in functions and satisfies the safe driving of large vehicles in road transportation.
1.1 System hardware framework design
The hardware principle block diagram of the new intelligent driving safety system is shown in Figure 1.
The main controller of the system adopts Qualcomm MSM8953, 8-core Cortex-A53, the main frequency is 2.0 GHz, the 14 nm process, the GPU is Adreno506, the integrated 4G LTE baseband supports LTE CAT 7 full Netcom, and the SIM card can be inserted for networking. The power module adopts a wide voltage design, which can work normally from 9 to 36 V, and is suitable for vehicles with a standard voltage of 12 V or 24 V. The operating temperature of the system is -30 ~ 75 ℃, the storage temperature range is (-40 ~ 85) ℃, and the eMCP is H9TQ27ADFTMC of SKhynix, which has 32 GB storage, 3 GB LPDDR3 running memory, and is configured with a 12.3-inch 1 920×720 Resolution TFT LCD display, 12.3-inch 10-channel touch screen; built-in GNSS module supports Beidou, GPS, GLONASS multiple positioning systems, built-in wireless module supports 802.11 b/g/n/ac function. The system supports 5 hard buttons, which can be used to switch on and off the machine, adjust the volume, or define as other shortcut operations; access to the mobile microphone supports PTT intercom and playback functions, and can communicate with the background control center in real time. The system supports access to multi-channel cameras and AHD signals, up to 8 channels of 720P cameras can be connected, which can solve the driver’s blind spot, AI intelligent identification, etc., and supports DVR recording, which can be stored in TF card or U disk. The system reserves two sets of serial ports, one can be connected to the CAN module to obtain the CAN information of the original car, and the other can be connected to the radar host to obtain the perception of surrounding obstacles, which expands the functions of the entire system and improves the practicability of complex scenes.
1.2 Multi-channel camera access design
The system design uses Qualcomm MSM8953, which can be connected to MIPI 4 LaneCSI0 and CSI1 two interfaces, the maximum processing capacity of one CSI[email protected]