一种国内首创的新颖技术安全装置——HAK型行车安全控制器由江苏省江都拖拉机配件厂试制成功,并在扬州冶金机械厂投入运行。该装置采用高可靠的电子线路,实现行车的安全距离控制。当行车进入不安全距离内时,控制器会自动切断供电,行车立即停止,这时,行车不能顺原方向行进,而向逆方向则可正常运行。当行车进入安全距离后,前后方向又都可运行。安装控制器无需改变行车的原有电路,即可控制行车与行车、行车与墙及其它物体的距离。如需几台行车紧靠,作特殊起重用,只要操纵安全距离手动 A pioneering innovative technology safety device - HAK-type traffic safety controller from Jiangdu Tractor Parts Factory trial success, and put into operation in Yangzhou Metallurgical Machinery Factory. The device uses highly reliable electronic circuits, driving safety distance control. When the driving into the unsafe distance, the controller will automatically cut off the power supply, the car immediately stopped, then, the car can not follow the original direction, while the reverse direction can be normal operation. When driving into the safe distance, both directions can run. Installation of the controller without changing the original circuit driving, you can control driving and driving, traffic and walls and other objects distance. For a few sets of traffic close to for special lifting, as long as the manual control of the safety distance