Science and technology wins the future, and intelligence helps safety. The scientific and technological revolution has already come with the wind, and the wave of intelligentization is also whistling, so how to interpret the relationship between forklift safety and efficiency by means of science and technology is a major proposition! We often say that safety is no trivial matter, and the fact proves that it is indeed no trivial matter. The occurrence of a safety accident is often not a momentary occurrence, but a long hidden conspiracy. Speeding, crushing, fatigue, driving, visual blind spots, improper management ...... In order to better solve these hidden dangers, our R & D team has made all-out efforts to study and research, visited 100+ famous enterprises, communicated with customers on site in real time, and understood the painful demands on site, and found that most of the mainstream forklifts have such potential problems as blind spot in reversing. For this reason, we decided to solve the problem of collision avoidance in the existing vehicles of our customers to make the working environment of enterprises more safe and efficient.
Programme: Ultrasonic Radar Collision Avoidance Early Warning System
Resolution given for each function.
System self-inspection: The system equipment anti-collision warning host will continue to communicate with the sensor to detect whether the sensor is normal.
Detection of pedestrians and obstacles: When the forklift is reversing, the alarm will start when it detects that the distance of obstacles is less than 1.5 meters; the alarm sound will beep with different frequencies of the buzzer; the closer the distance is, the more urgent the alarm sound will be, prompting the driver to reverse safely. (The farthest distance can be done to detect about 3 meters)
Reversing Speed Limit: Vehicles are divided into two types: electric and internal combustion forklifts; the control methods are also very different for different types of vehicles. For vehicles with CAN system, the anti-collision system reads the speed and reversing signal through CAN bus communication; for vehicles without CAN system, the pulse count sensor collects the pulse number from the gearbox/ speedometer and converts it into speed.
Vehicles with electronic throttle use electronic throttle controller to achieve speed limit, and the accelerator pedal of cable/rod uses mechanical throttle controller to achieve speed limit control.
When the reversing speed is greater than 5KM/h, the electronic/mechanical throttle control action will release the throttle of the vehicle to achieve speed reduction.
Automatic stop: When the forklift truck is driving in reverse, the ultrasonic analog/digital radar probe detects obstacles (or pedestrians) behind, when the rear detection obstacle is too close, the speed is reduced by throttle control, and when the distance is less than 30cm, the system automatically works without the need for the driver to take measures, cutting off power and control the brake to brake the vehicle and force the forklift truck to stop. The braking control adopts different strategies according to different vehicles. Vehicles equipped with electronic brakes use electronic brake controller to realize forklift control (control schematic diagram is the same as electronic throttle controller); vehicles with cable/pull rod use electromagnetic control valve/brake cable controller to realize braking control.