What does bus signal interruption mean?
3 Answers
Bus signal interruption refers to the complete or partial loss of wireless communication and satellite positioning signals between the bus and the dispatch center, which are used to monitor the vehicle's location. Below is a detailed introduction: 1. Satellite Positioning System: This is a technology that uses satellites to accurately locate objects. It has evolved from early systems with low positioning accuracy, inability to provide real-time positioning, and difficulty in offering timely navigation services to today's high-precision GPS global positioning system. This system allows observation of at least four satellites from any point on Earth at any given time, enabling functions such as navigation, positioning, and time synchronization. 2. Interrupt Number: This is a code assigned by the system to each interrupt source for identification and processing. The interrupt number plays a crucial role in the interrupt handling process. In an interrupt system using vector interrupt methods, the CPU must use it to locate the entry address of the interrupt service routine and achieve program transfer.
I often encounter bus signal interruptions at the maintenance station, which essentially means the vehicle cannot communicate properly with the command center. The most common issues are loose antennas or faulty onboard communication modules, especially in older vehicles—those electronic components really don’t last. It could also be poor wiring connections, such as oxidation from water seepage in the plugs or blown fuses. If the signal suddenly drops, drivers usually pull over and try restarting the equipment first—sometimes it’s just a system crash. As a technician, I recommend inspecting the onboard communication components every three months and reinforcing all connections to avoid many of these troubles.
The bus suddenly lost signal while running? I've encountered this situation multiple times during my shifts, which means the vehicle temporarily loses contact with the dispatch center. It's particularly common during severe weather conditions, such as heavy rain or when passing through tunnels where GPS signals get blocked, causing alerts to pop up on the onboard screen. It could also be due to a faulty signal receiver, as prolonged vibrations can easily loosen components. The driver's protocol is to immediately reduce speed and report the issue. Passengers are advised to stay calm, as the onboard broadcast will announce any temporary stops. To fully resolve the issue, the communication equipment and network connections need to be inspected.
