Method for controlling bus of hostless parking radar system and detecting obstruction
A radar system and bus control technology, applied in the field of parking assistance systems, can solve problems such as calculating the vertical distance of obstacles
Active Publication Date: 2011-08-03
TUNG THIH ELECTRONICS (XIAMEN) CO LTD
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Problems solved by technology
[0006] The purpose of the present invention is to provide a method for bus control and obstacle detection of the hostless parking radar system, so as to solve the problem in the prior art that the hostless parking radar system cannot use trigonometric functions to calculate the vertical distance of obstacles
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[0049] In order to further explain the technical solution of the present invention, the present invention will be described in detail below through specific examples.
[0050] Such as Figure 3 to Figure 5 As shown, it shows a hostless parking radar system 100 applied in the present invention, which has a plurality of sensors 1, at least one alarm 2, an internal network 3 and an external network 4. The internal network 3 is located at Between a plurality of sensors 1 and realize internal communication between a plurality of sensors 1, the external network 4 is used to connect one of the sensors 1 and the alarm 2; wherein each sensor 1 includes Microprocessor 11, communication module 12, ultrasonic sensor 13 and the driving sending module 14 and the ultrasonic receiving module 15 that are arranged between microprocessor 11 and ultrasonic sensor 13; The ultrasonic pulse is generated, and after being amplified by the driving sending module 14, the ultrasonic sensor 13 is driven to...
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The invention discloses a method for controlling a bus of a hostless parking radar system and detecting an obstruction, comprising the following steps: A, an initial sensor generates a token and controls the token to be cycled in sensors by virtue of an internal network; B, the sensor which acquires the token informs an adjacent sensor of receiving an echo, and transmits and receives an ultrasonic wave, and the adjacent sensor receives an echo signal; C, the echo signal received by the adjacent sensor is transmitted to the sensor which acquires the token by virtue of the internal network, andthe sensor which acquires the token calculates a range at which the obstruction is near according to echo data; D, if the obstruction exists, the sensor which acquires the token transmits the calculated range information to the initial sensor, the initial sensor transmits the range and angle information to an external network, and an alarm is directly driven, or the external network and a bus module are mutually connected for communication so as to transmit alarm information to the alarm; and E, the token is continuously cycled to the next sensor. By adopting the method disclosed by the invention, the response sensitivity of the radar system can be improved.
Description
technical field [0001] The invention relates to the field of parking assistance systems, in particular to a method for bus control and obstacle detection of a parking radar system without a host. Background technique [0002] Such as figure 1 As shown, a conventional parking radar system generally includes a control box 81, a plurality of sensors 82 and at least one reminder 83, and the plurality of sensors 82 are respectively connected to the control box 81, and under the control of the control box 81 And mutual coordination work, wherein each sensor 82 respectively detects the data of obstacle and all transmits to control box 81 processing, and this control box 81 analyzes above-mentioned data and judges the distance of obstacle, when the obstacle distance does not satisfy predetermined condition , the control box 81 notifies the reminder 83 and reports to the police. The multiple sensors 82 need to be arranged on the outside of the vehicle body due to work requirements,...
Claims
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IPC IPC(8): G01S15/08G01S7/52
Inventor 刘丁阳王雄黄诚标肖作裕黄阿玉
Owner TUNG THIH ELECTRONICS (XIAMEN) CO LTD