Ultrasonic stall information acquirer and ultrasonic stall information acquisition method

A parking space information and ultrasonic technology, applied in the field of automatic collection of vacant parking space information in the parking lot, can solve the problems of high cost, large number of components, fixed and single measurement range, etc., and achieve the effect of reasonable design and simple structure
CN102779429BInactive Publication Date: 2014-08-20GUANGXI NANNING TAISEN ELECTRONICS TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGXI NANNING TAISEN ELECTRONICS TECH
Publication Date
2014-08-20
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

The invention discloses an ultrasonic stall information acquirer which comprises a singlechip and an ultrasonic signal emitting / receiving circuit connected with the singlechip, wherein the ultrasonic signal emitting / receiving circuit comprises an ultrasonic receiving device, a voltage follower, a signal amplifier and two paths of comparing and shaping circuits which are connected in sequence; and the signal output end of each path of comparing and shaping circuit is respectively connected with one interruption port of the singlechip. By being matched with the corresponding ultrasonic stall information acquisition method, one set of ultrasonic emitting / receiving device can be used for realizing automatic range selection or automatic range switching or intelligent range setting according to a site actual demand by software aiming at stall design of an ultrasonic measurement interference factor or different ultrasonic ranges so that stall information acquisition tasks are completed. The ultrasonic stall information acquirer is especially suitable for a parking lot which is non-uniform in stall heights or inconsistent in stall ultrasonic measurement environments, and can also accurately, conveniently, rapidly and efficiently realize automatic setting of communication addresses of stall information acquirers when being matched with a specific communication address setting method.
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Description

technical field

[0001] The invention relates to automatic collection of vacant parking space information in a parking lot, and more specifically relates to an ultrasonic parking space information collector and an ultrasonic parking space information collection method. Background technique

[0002] With the rapid increase of urban residents' car ownership, the contradiction between cars and parking spaces is becoming more and more prominent in crowded urban areas. If the number and location information of vacant parking spaces can be grasped in real time, it can help parking lot managers to use limited parking space resources more fully and efficiently.

[0003] Most of the parking space information collectors disclosed in the technical literature now use ultrasonic transmitting / receiving kits, which use the principle of different times when ultrasonic waves are emitted and reflected back from obstacles when there are cars in the parking space and when there is no car in the ...

Claims

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