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Vehicle navigation mcu adaptive learning control method and circuit

A technology of self-adaptive learning and car navigation, which is applied in the field of car navigation MCU self-adaptive learning square control, which can solve problems such as difficult button learning process, easy mistriggering of square control buttons, and small resistance range of steering wheel, etc., so as to shorten the learning process of square control process, improve user experience, and save operating time

Inactive Publication Date: 2020-04-17
深圳市诺威达电汽有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the steering wheel resistance range of some models is very small, and the square control buttons are easy to be triggered by mistake, which makes it very difficult to learn the buttons.

Method used

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  • Vehicle navigation mcu adaptive learning control method and circuit
  • Vehicle navigation mcu adaptive learning control method and circuit
  • Vehicle navigation mcu adaptive learning control method and circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example one, reference figure 1 , Is a circuit for self-adaptive learning of the vehicle navigation MCU, which is disclosed in the present invention, which includes a sampling chip coupled to the steering wheel of the square control, a diode coupled to the sampling chip, and three precision resistors. Among them, the sampling chip uses STM32F030C8 microcontroller, and the resistance values ​​of the precision resistors are 470R, 10K, and 100K respectively. When performing square control learning, press the square control button, and through the setting of three precision resistors and the built-in resistance of the button, four groups of different resistance values ​​and four groups of voltage values ​​after voltage division are obtained.

[0048] Specifically, there are generally two button connection lines on the side-controlled steering wheel, which are connected to the KEY3 and KEY4 lines respectively, and collect the button voltage on the side-controlled steering wheel ...

Embodiment 2

[0054] Example two, reference figure 2 , Is a method for self-adaptive learning of vehicle navigation mcu, which is disclosed in the present invention, includes a vehicle navigation module and a square control steering wheel, and includes the following steps:

[0055] S1. Turn on the car navigation module, enter the button learning state, select the party control button to be learned, and initialize the party control button;

[0056] S2. Long press the initialized square control button without releasing the square control button to obtain multiple sets of sampling resistance values ​​and sampling voltage values ​​corresponding to the sampling resistance values;

[0057] S3. Store each group of sampling resistance values ​​and corresponding sampling voltage values;

[0058] S4. Compare each group of sampled voltage values ​​with the existing square control button voltage values ​​to determine whether there is a button conflict, if yes, go to the next step, if not, go to S6;

[0059] S5....

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Abstract

The invention relates to a vehicle navigation mcu adaptive learning control method and circuit. The method comprises steps of initializing a control key; acquiring multiple groups of sampling resistance values and sampling voltage values corresponding to the sampling resistance values; storing each group of sampling resistance values and the corresponding sampling voltage values; comparing each group of sampling voltage values with an existing control key voltage value; removing the sampling voltage values conflicting with the existing control key voltage value; releasing a control key, and judging whether a sampling voltage value exists or not; in a vehicle-mounted navigation module, acquiring an instruction for setting the function, and enabling the control key to correspond to a function of the vehicle-mounted navigation module; judging whether a new control key is available for learning or not; after finishing all key learning, memorizing related parameters of all control key learning, selecting a group with the largest control key voltage value difference, and removing other data; ending. The method is advantaged in that automatically learning of the control keys and avoidingof false triggering among the keys are achieved.

Description

Technical field [0001] The present invention relates to the technical field of vehicle navigation, in particular to a method and circuit for self-adaptive learning of vehicle navigation MCU. Background technique [0002] With the development of the automobile industry and the electronics industry, more and more electronic technologies are applied to modern cars. Automobiles will also develop from purely mechanical products to advanced mechatronics products. For example, the functions of automobiles are no longer limited to driving functions. Automobiles also have functions such as entertainment, office, and communication. [0003] At present, car navigation systems have been popularized in most cars, bringing more entertainment experience to users. In order to facilitate user operations, a common practice is to set the control buttons of the car navigation system on the steering wheel of the car. The control buttons are, for example, buttons for switching the map mode, adjusting t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C21/36
CPCG01C21/3664
Inventor 黄维权
Owner 深圳市诺威达电汽有限公司
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