Integrated circuit specially for reversing radar

Abstract

The integrated circuit specially for reversing radar includes one signal acquiring unit, one main control unit and one signal executing unit. The signal acquiring unit for acquiring and processing probe signal consists of one-out-of-four switch module, the first amplifier module, the second amplifier module, band pass filter module, adjustable gain amplifier module, pre-receiver module and comparator module. The main control unit for processing data and controlling consists of clock frequency dividing module, clock module, timer module, main control module and gain controlling module; and the signal executing unit for executing consists of one-out-of-four switch module, pulse generator module, data generating module and serial sending module. The reversing radar with the integrated circuit has high integrity, high stability, high anti-jamming capacity, low cost and other advantages.

Description

technical field [0001] The invention relates to an integrated circuit, in particular to an application-specific integrated circuit for reversing radar used in automobiles. Background technique [0002] With the increasing penetration rate of automobiles, consumers have more requirements for the configuration of automobiles while using automobiles as a means of transportation, especially higher requirements for safety. For many drivers, especially novices, reversing is undoubtedly a very headache, and the reversing radar can just help drivers solve this problem. [0003] The reversing radar on the market is divided into three main types according to the date of birth. The first generation of reversing radar is the type with two probes exposed, that is, the probe is outside the bumper. The advantage of this kind of reversing radar is that it is easy to install, but because there are only two Probes, when installed, there must be a standard distance of about 1.2 meters between...

AI Technical Summary

Problems solved by technology

The analog part is composed of a large number of discrete components, and the overall debugging of the system is also relatively complicated

The advantage of the general scheme is that the selected devices are mature, the procurement channels are smooth, and the development technology is also very mature, but there are many shortcomings: the single-chip control scheme requires the manufacturer to have certain software and hardware development capabilities, which raises the production threshold of the reversing radar; There are many components, and the cost of production and debugging is high; it is difficult to realize various anti-false alarm functions; using software control, the system has unstable factors; single-chip microcomputers based on RAM and ROM structures are difficult to meet automotive electronic standards in terms of anti-electromagnetic interference and stability

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