Intelligent reversing radar system and automatic control method thereof

Abstract

An intelligent reversing radar system and an automatic control method thereof relate to a radar system and a control method thereof. The system comprises at least two sensors; each sensor comprises an ultrasonic sensing unit and a control unit; each control unit comprises a single-chip microcomputer, an emitting circuit and a receiving circuit, which are connected in sequence; the single-chip microcomputer of each sensor is connected with a connector; the single-chip microcomputer of the main control sensor is connected with external equipment by an external data line; all single-chip microcomputers are connected by an internal communication line and are respectively connected with a reversing lamp signal line and a grounding line. The method comprises the steps that the system is subjected to self-inspection after all sensors realize automatic positioning; the system emits an ultrasonic wave and receives a returning signal; the signal is subjected to data processing after being amplified and is finally output to the external equipment by the main control sensor. According to the intelligent radar reversing radar system and the automatic control method thereof, a hardware circuit can be simplified, the performances are stable and reliable, the positions of the sensors can be fast and accurately identified, and the radar system can be simply and reliably controlled and is suitable for the configuration of different vehicle models.

Description

technical field [0001] The invention relates to a radar system and its control method, in particular to an intelligent reversing radar system and its automatic control method. Background technique [0002] With the rapid development of the automobile industry, it has become a fact that cars are equipped with parking sensors as standard, and entry-level cars also have the configuration that was only enjoyed by high-end cars before. Technology is advancing, technology is developing, and the reversing radar is also being updated, from analog reversing radar to digital reversing radar, and then to intelligent reversing radar. Most of the current reversing radar technical solutions use a controller to configure multiple sensors. This method not only has a large number of wiring harnesses, but also costs a lot. The reversing radar integrates many functions because of the controller, such as providing voltage and detecting reverse gear. , vehicle speed recognition, control sensor ...

AI Technical Summary

Problems solved by technology

Most of the current reversing radar technical solutions use a controller to configure multiple sensors. This method not only has a large number of wiring harnesses, but also costs a lot. The reversing radar integrates many functions because of the controller, such as providing voltage and detecting reverse gear. , vehicle speed recognition, control sensor working logic, and instrument communication, etc., too many functional modules can easily cause defective products due to unreasonable circuit design, abnormal incoming materials or process defects, and its signal processing is concentrated on the controller side, and the sensor returns Sometimes it will pass through a very long data line, and the signal will often be abnormal due to interference from the vehicle body

Although some reversing radars have removed the controller, because of the unscientific connection method, there are serious defects, which need to be realized through very complicated circuit matching and software algorithms, and it cannot be expanded to more than 6 sensors, and the versatility is not enough, stable bad sex

Moreover, only one data line will cause the sensor to be connected to external devices (instrument or BCM or driving computer) for real-time response when communicating internally, which not only increases the burden on external devices, but also easily causes communication errors and accidents.

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