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Host-free parking auxiliary system

A technology of parking assistance and main engine, which is applied in the field of parking assistance systems, can solve problems such as poor system stability, high cost, and complex power supply for sensor signal transmission, and achieve system cost reduction, wire saving, and strong anti-interference ability Effect

Inactive Publication Date: 2010-06-09
柯文河
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the large number of sensors used and scattered, the signal transmission between the sensor and the host and the power supply are very complicated. Currently, the technical solutions used mainly include direct connection, four-wire system, three-wire system and two-wire system, but they are common. Poor system stability and high cost

Method used

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  • Host-free parking auxiliary system
  • Host-free parking auxiliary system

Examples

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Embodiment Construction

[0026] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings.

[0027] see figure 1 , The ultrasonic ranging sensor A is provided with a power supply circuit 111 , a communication circuit 112 , a single-chip microcomputer 113 , a transmitting drive circuit 114 , an output drive circuit 115 , a receiving amplifier circuit 116 and a piezoelectric ceramic sensor 117 . The power supply circuit 111 provides energy for the sensor. The output end 1 of the single-chip microcomputer 113 is connected to the input end of the emission driving circuit 114 , and the output end of the emission driving circuit 114 is connected to the piezoelectric ceramic sensor 117 . The output terminal of the piezoelectric ceramic sensor 117 is connected with the input terminal of the receiving amplifying circuit 116, the output terminal of the receiving amplifying circuit 116 is connected with the input terminal 4 of the single-chip microcomp...

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Abstract

A host-free parking auxiliary system relates to a parking auxiliary system and has higher stability and lower cost. The host-free parking auxiliary system comprises an ultrasonic ranging sensor, a transmission line, an alarm unit and a power module. The sensor is provided with a power circuit, a communication circuit, an emission driving circuit, a piezoelectric ceramic sensor, a reception amplification circuit, an output driving circuit and a singlechip, wherein the input end of the power circuit is connected with the singlechip, the communication circuit, the emission driving circuit, the reception amplification circuit and the output driving circuit, and is connected with the power source of an automobile through a signal line; the output and input ends of the communication circuit are connected with the input and output ends of the singlechip; the output end of the emission driving circuit is connected with the piezoelectric ceramic sensor; the output end of the piezoelectric ceramic sensor is connected with the input end of the reception amplification circuit; the output end of the reception amplification circuit is connected with the singlechip; one end of the output driving circuit is connected with the singlechip and the other end is connected with the alarm unit; and both ends of the transmission line are connected with the ultrasonic ranging sensor and the power module.

Description

technical field [0001] The invention relates to a parking assist system, in particular to a master-less parking assist system without a reversing radar host and using an ultrasonic ranging sensor (SENSOR) as a digital communication main body. Background technique [0002] In order to remind the driver of the vehicle, the driver is generally assisted by means of sound alarm or distance display to achieve the purpose of safe driving. The existing ultrasonic parking assistance system generally consists of a sensor, a host, an audio alarm unit, a distance display unit, a power supply, and a vehicle interface. Among them, the sensor is required to be arranged on the outside of the car body, such as on the front and rear bumpers. And the host is located in the car. Due to the large number of sensors used and scattered, the signal transmission between the sensor and the host and the power supply are very complicated. Currently, the technical solutions used mainly include direct c...

Claims

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Application Information

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IPC IPC(8): G01S15/08
Inventor 柯文河
Owner 柯文河
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