In early 2011, based on the heavy-duty truck security intelligence management system, Hangzhou Hongquan was jointly launched with the Shanqi Heavy Truck Co., Ltd. Tianxing-Jiannet online service system was officially released on November 18, 2011, causing a sensation in the heavy-duty truck industry.
The heavy truck safety intelligent management system is an in-depth study of the heavy truck industry by Hangzhou Hongquan Digital Equipment Co., Ltd. It is a professional three-pronged intelligent management system that is used to implement heavy truck drivers' driving behavior standards, vehicle status, and road surface conditions. The system consists of a remote management data collection terminal and Hongquan cloud computing center Hongquan cloud network.
When the heavy truck is running, the terminal reports the truck speed, vehicle speed, switching capacity, torque, battery voltage, engine oil temperature, oil pressure, atmospheric pressure, intake air temperature, coolant temperature, cumulative fuel usage, and engine running time in real time. Instantaneous fuel consumption, rapid acceleration, rapid deceleration, speeding, oil stealing alarm, oil temperature, oil level, and other information were uploaded to the cloud server based on IoT cloud computing solution, Hundsun Cloud Network. behavior. Managers log on to the website of the heavy truck safety intelligence management system and can inquire about bad driving records. At the same time, the website proposes driving improvement programs to achieve safety and fuel saving purposes.
Heavy truck security intelligent management system - management terminal and installation renderings
Figure 1: Vehicle Heavy Duty Safety Intelligence System Vehicle Terminal
Fig. 2: Schematic diagram of the installation position of the vehicle terminal For non-standard driving behavior such as overspeed, neutral coasting, and fatigue driving during heavy-duty driving, an automatic detection alarm (emergency fault voice alarm) is provided. At the same time, overspeed alarm records, rapid acceleration alarm records, emergency deceleration alarm records, vehicle overload alarm records, vehicle self-test (brake, clutch, throttle working status check) information, front vehicle obstacle alarm, speed switch door, tire pressure monitoring Such information is uploaded in real time to the Hongquan cloud network acquisition and control gateway, and stored in the Hongquan cloud computing center.
Heavy truck safety intelligent management system - the overall structure of the remote management center heavy truck safety system is as follows:
Figure 3: Heavy-duty security system architecture
Figure 4: Tree diagram of the smart card management center of heavy truck As shown in the above diagram, the smart card solution for smart trucks collects various data from the vehicle terminal equipment, calculates the data model and performs various processing, and then passes the data through the wireless network (GSM, CDMA, etc.) ) It is transmitted to the cloud computing center of the Internet of Things (IoT cloud computing center), which is cloud computing processing. The mining and control gateway performs distributed storage in the form of a file server. Cloud network's summary service module aggregates data according to the system's mathematical model and saves it to the database. The website supports reports, pie charts, bar charts or line charts, etc., and displays the vehicle operating data with a special mathematical model, and can issue control commands to the terminal. Some simple faults can be remotely excluded.
Heavy truck safety intelligent management system to eliminate irregular driving behavior - safer!
The driving habits of drivers are often closely related to the safety of the driver in the vehicle and the fuel consumption of the vehicle during the life of the vehicle. A driver with frequent bad driving habits, such as frequent speeding, rapid acceleration, rapid deceleration, and sudden braking, will cause high fuel consumption, high loss, and low lifespan while posing a danger to drivers and goods. And in the event of a security incident, it is highly likely that these drivers, who do not pay attention to driving behavior at all, are the result. The following figure shows the analysis of driving behavior obtained from statistics of drivers' behaviors from the historical track of Hong Quan Heavy Truck Smart Operation System:
Figure 5: Historical trajectory is not driving
Figure 6: Real-time reporting of irregular driving
Figure 7: Driving Rating Report
Figure 8: Driving Rating Report Score Comparison Diagram The working conditions of various parts of the vehicle, especially brakes, clutches, throttles, etc., are related to the life safety of vehicle drivers. The system terminal realizes inspection of vehicle components by collecting various switch information such as brakes, clutches, throttles, left and right steering lights, air conditioners, and brake pads wear alarms. Second, the system supports TPMS tire pressure detection device, real-time detection of tire pressure alarm; support the use of infrared temperature sensors to achieve high-temperature brake pads.
As the core component of the vehicle ---- the engine, the system supports the interface of the CAN interface with the national engine above the third, and analyzes the CAN protocol to analyze whether there is an abnormal state during the operation of the engine, such as a DM fault code.
In addition, before each vehicle is opened, the system vehicle terminal will perform a vehicle inspection on the working status of the vehicle components and the status of the engine, as well as a breakdown of the vehicle safety status and a breakdown of the reason list.
The road surface conditions and weather conditions are the third party safety factors that affect the driving of vehicles. The system has the following detection functions: road surface inclination detection, weather condition detection, vehicle front obstacle alarm, and so on. Pavement inclination alarm is achieved through the installation of a gyro to achieve tilt angle analysis. The excessively high inclination alerts the driver through the alarm mode; the weather condition detection, the background of the system connects with the meteorological platform, and pushes the weather information, humidity information and temperature information for the next three days. To the vehicle terminal display to indicate the driver's meteorological conditions at the corresponding location; vehicle front obstacle alarm, the vehicle terminal through the video processing technology within 1M from the front of the obstacles, the car LCD screen automatically switches to the front camera to remind the driver; system With reversing radar, the probe is installed on the rear bumper to automatically switch the rear obstacles and alert the driver.
The system's on-board terminal supports 8 cameras and it records 4 channels at the same time. The following figure shows the video interface of the vehicle terminal:
Figure 9: Vehicle Terminal Video Interface:
Heavy truck safety intelligent management system - restore the truth of the accident
On April 25th, 2011, a certain group of vehicles from the Liuyang-Shenzhen long-distance train line collided with a truck on the Beijing-Hong Kong-Macao high-speed road, causing a minor traffic accident. After the accident, the driver said that the traffic conditions and road conditions were performed at the time. With the right judgment, he did not overspeed, and he made an emergency brake when an accident occurred. Reasonable measures have been taken to avoid the risk of accidents.
The following figure is the speed curve at the time:
As the driver said, the accident is divided into two phases. At first glance it looks like this:
1,22:58:50 to 59:37, speed 40km/h-104km/h, vehicle accelerating overtaking 2,59 minutes and 37 seconds, an emergency in front, shorthand continuous emergency braking but the fact is that the driver Did you say that?
The group retrieved the data by carefully reviewing the management platform operation system and found that the vehicle began to accelerate within 58 minutes and 50 seconds. Within 47 seconds, the vehicle speed rose linearly from 40km/h to 104km/h, at 59 minutes and 37 seconds. There was an emergency in front of the car. The car started to brake. When it was 59 minutes and 40 seconds, the speed was reduced from 104 to 58 in 59 seconds. The car stopped completely 59 minutes and 43 seconds. At this time, the vehicle had collided.
The group's management personnel found the key to the accident in these data: At 58 minutes 47 seconds and 59 minutes and 23 seconds, the driver guessed the two clutches, while the high-speed driving encountered an emergency situation, the brakes should be applied first, and the emergency system move. In this accident, the driver’s emergency brake lags behind and there is misjudgment, which is the main responsibility.
As shown above, the truth of the truth is this:
1, 58 minutes and 50 seconds - 59 minutes 32 seconds, the speed from 40km/h to 85km/h, the vehicle is accelerating overtaking 2, 59 minutes 22 seconds - 59 minutes 24 seconds, the driver stepped on the clutch (after judging the front (emergency) hesitated 3, 59 minutes, 24 seconds - 59 minutes, 37 seconds, began to accelerate, 14 seconds speed increased to 104km / h
4,59 minutes 37 seconds emergency brake pedal, then the front passenger door has been knocked open, preliminary judgment at this time the vehicle has crashed heavy truck safety intelligence system to restore the facts, the driver realized the importance of standard driving, managers through the restoration of the facts The process, improved professional skills, rational analysis of the establishment of the authority of the manager. The Group’s maintenance safety management has achieved a leap forward!
Welcome to reprint, please indicate the source: Hangzhou Hongquan official website http://, thank you!
HuiZhou Superpower Technology Co.,Ltd. , https://www.spchargers.com