[0042] The following describes the implementation of the present invention through specific specific examples in conjunction with the accompanying drawings. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific examples, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention.
[0043] figure 1 It is a system architecture diagram of an intelligent alarm system of the present invention. Such as figure 1 As shown, an intelligent alarm system of the present invention is used to perform an intelligent alarm on the road condition information of a motor vehicle, which at least includes: N sound collection modules 11, an analog-to-digital converter 12, an MCU 13, a digital-to-analog converter 14 and a display device 15. .
[0044] Among them, N sound collection modules 11 are installed in different positions of the car body to collect sound information from external speakers; the analog-to-digital converter 12 is connected to the output ends of the N sound collection modules, which are used to collect the sound collection modules 11 The signal is converted into a digital signal and then output to MCU13; MCU13 analyzes and processes the received digital signal according to the program, and outputs the command signal to the digital-to-analog conversion module 14; the digital-to-analog converter 14 performs the received command signal The digital-to-analog conversion is converted into an analog command signal; the display device 15 is connected to the output terminal of the digital-to-analog converter 14, and according to the analog command signal external sound information, such as the size of the external speaker sound and the orientation of the speaker sound.
[0045] Preferably, in order to achieve a better alarm effect, the intelligent alarm system of the present invention further includes a buzzer 16 which is also connected to the output terminal of the digital-to-analog converter 14 to obtain an analog command signal. Prompt alarm.
[0046] figure 2 It is a schematic structural diagram of a preferred embodiment of an intelligent alarm system of the present invention. The following will cooperate with a specific example figure 2 The working principle of the present invention is further explained. In the preferred embodiment of the present invention, the sound collection module 11 is a sound sensor. There are three sound sensors, one of which is installed in the trunk door of the motor vehicle, and the other two are installed in the middle of the left and right doors of the motor vehicle. The sound sensors continue to collect The sound information of the external speakers is output to the analog-to-digital converter (A/D converter, not shown) 12 for A/D conversion; MCU 13 is a single-chip microcomputer, which analyzes and processes the A/D converted signal according to the program , Generate a corresponding command signal and output it to a digital-to-analog converter (D/A converter, not shown) 14 for D/A conversion. In a preferred embodiment of the present invention, the display device 15 includes an LED display and a sound alarm display, It is installed on the dashboard in the cab. After the D/A converted command signal is transmitted to the display device 15, the display device 15 displays the size of the external horn sound and the direction of the horn sound. At the same time, the buzzer 16 gives a voice alarm. The buzzer 16 is installed in the cab.
[0047] The working principle of the intelligent alarm system of the present invention is analyzed as follows:
[0048] Suppose L, M, R are the signal values collected by the sound sensors installed on the left door, trunk door and right door of the motor vehicle; S0-S4 are the reference values of sound intensity;
[0049] Case 1: L
[0050] Case 2: L>S0, L>M, L>R, as the intelligent alarm system of the present invention, the left light of the display device is on, the buzzer prompts the voice "You have the car owner on your left", L S4 sound intensity indicator lights 5;
[0051] Case 3: M>S0, M>L, M>R, as the intelligent alarm system of the present invention, the light is on after the display device, the buzzer prompts the voice "There is a car owner behind you honk the horn", and the M S4 sound intensity indicator lights on 5;
[0052] Case 4: R>S0, R>M, R>L The intelligent alarm system of the present invention is used, the right light of the display device is on, the buzzer prompts the voice "You have the owner of the car on the right to press the horn", and the R S4 sound intensity indicator lights on 5 lights.
[0053] image 3 It is a flowchart of the steps of an alarm method of an intelligent alarm system of the present invention. Such as image 3 As shown, the alarm method of an intelligent alarm system of the present invention includes the following steps:
[0054] Step 301, a signal collection step, that is, the sound collection module 11 collects sound information of external speakers;
[0055] Step 302, a signal conversion step, which is to perform analog-to-digital conversion on the acquired sound information of the external speakers and convert them into corresponding digital signals;
[0056] Step 303: The MCU 13 analyzes and processes the converted digital signal according to the program, and generates a corresponding command signal;
[0057] Step 304: Perform digital-to-analog conversion on the command signal to convert it into an analog command signal; and
[0058] Step 305: Transfer the simulated command signal to the display device 15 for display, and display external sound information, such as the size of the external speaker sound and the orientation of the speaker sound.
[0059] Preferably, in step 305, while displaying external sound information, a buzzer can also be used to give a voice alarm prompt.
[0060] To sum up, an intelligent alarm system and method of the present invention obtain the sound information of external speakers by installing multiple sound sensors at different positions of the motor vehicle body, and at the same time use the single-chip microcomputer to input the judgment information accurately and reasonably and the complete processing program, so that While the alarm system of the present invention displays the position and intensity of the external horn, it also refers to the car’s own structure to correct the alarm reference system. At the same time, the present invention also adds The buzzer voice prompt device continuously inputs information through the sound sensor, and the single-chip computer processes it in time, which makes the present invention more intelligent.
[0061] The above-mentioned embodiments only exemplarily illustrate the principles and effects of the present invention, but are not used to limit the present invention. Any person skilled in the art can modify and change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be as listed in the claims.
