Advantages of Ground Induction Coil Processor in Vehicle Detection Application - Tigerwong Technolog

Ground sense is an important part of the car parking management system. When the vehicle passes through the ground sense, the system analyzes the data of the oscillation generated by the detection circuit, so as to realize the data collection of road dynamic traffic, and the collected data can reflect the passing and existing conditions of the vehicle in real time. In recent years, as an important front-end part of traffic vehicle information, vehicle detector has attracted more and more attention from people in the industry. In view of the development needs of modern highway traffic management and modern urban traffic management, the dynamic detection technology of driving vehicles and the development of vehicle detector have attracted great attention at home and abroad. The vehicle detector takes the vehicle as the detection target and detects the passing or existing conditions of the vehicle in a certain area. Its greatest function is to provide sufficient data information for the intelligent traffic control system for the fastest and most accurate control. At present, the technologies adopted by vehicle detection devices in intelligent transportation industry at home and abroad include photoelectric technology, ultrasonic technology, microwave technology, video technology, etc. in addition to the ground induction coil technology first developed, of course, several technologies are easily disturbed by external factors such as sunshine, wind and rain, electromagnetic field and so on, so its application scope is greatly limited, However, ground induction coil is still an important detection means in the mainstream of the market. At present, the vehicle detectors used in the parking industry mainly include magnetic induction detector, ultrasonic detector, pressure switch detector, radar detector, photoelectric detector and video detector, while the ring coil electromagnetic induction vehicle detector has the advantages of stable performance, simple structure, low cost, less maintenance and wide adaptability, It is also the most widely used in the market today. As a vehicle detector, the annular ground induction coil is embedded under the road surface to measure the change of inductance and detect whether the vehicle exists. If the vehicle passes, it will detect the disturbance to the geomagnetic signal and judge whether the vehicle has passed safely, so as to realize the analysis, control and management of vehicle information. It has many advantages such as simple installation, strong anti-interference ability and high degree of integration. Six performance advantages of ground induction coil processor: ● industrial design, super anti-interference ability and stability; ● multi level sensitivity can be adjusted to meet various requirements; ● support multiple output interfaces to adapt to different scenarios; ● support coil fault automatic detection function; ● it can cooperate with the gate to realize the automatic gate closing function; ● support environmental drift compensation function; Principle of ground induction coil: first, a circular groove with a diameter of about 1m or a rectangular groove with an equivalent area is made on the ground, and 2 3 turns of wires are buried in the groove, so an inductive coil buried on the ground is formed. This coil is part of the oscillation circuit, which is composed of it and capacitor. The oscillation signal is transmitted to the frequency measurement circuit composed of single chip microcomputer through transformation, which can measure the frequency change of the oscillator. When a large metal object such as a vehicle passes by, the oscillation frequency becomes higher due to the change of space medium. The single chip microcomputer can measure the changed frequency value and immediately perceive the passing of a vehicle. At the same time, the time interval between the beginning and end of this signal can be used to measure the driving speed of the vehicle. For more exciting industry news and parking plans, please call or follow tigerwong's official website. There will be many unexpected gains if you continue to pay attention!!!