Abstract: A warning light control system based on dangerous behavior detection includes a plurality of red light-emitting diodes, a plurality of blue light-emitting diodes, a control element, a circuit board, and a lampshade. The plurality of red light-emitting diodes and the plurality of blue light-emitting diodes are disposed at one end of the circuit board. The control element is disposed at another end of the circuit board. The lampshade is disposed above the plurality of red light-emitting diodes, the plurality of blue light-emitting diodes, the control element, and the circuit board. The lampshade comprises a lens for concentrating and emitting light uniformly. The lampshade is fixed on a top of a police car. Wherein, the number of the plurality of red light-emitting diodes is equal to the number of the plurality of blue light-emitting diodes. The system acts a deterrent effect on the dangerous behavior.

Abstract: An intelligent police car loudspeaker includes a loudspeaker mechanism composed of a dust cover, a paper cone, a yoke ring, a centering piece, a magnet, a voice coil, and a soft iron core. The voice coil is disposed around the soft iron core. The magnet is disposed around the voice coil. The paper cone is disposed above the magnet. The centering piece is disposed above the magnet and located inside the paper cone. The yoke ring is disposed above the centering piece and located inside the paper cone. The dust cover is configured to cover an opening of the paper cone. With the present invention, the level of intelligence of the loudspeaker can be improved.

Abstract: A self-adjusting LED warning light control system includes an image capturing device, an image processing device, a car distance detection device, a warning light control device, and an LED warning light. The LED warning light includes a red LED component, a middle partition, and a blue LED component. The image capturing device is provided for collecting image data for the front of the police car to obtain a front image; the image processing device is provided for performing an image processing of the front image; the car distance detection device is provided for confirming the front vehicle distance according to an output of the image processing device; the warning light control device is provided for confirming a control strategy of the LED warning light according to the output of the car distance detection device. This disclosure can achieve a self-adjusting control of the LED warning light.

Abstract: A warning light control system based on dangerous behavior detection includes a plurality of red light-emitting diodes, a plurality of blue light-emitting diodes, a control element, a circuit board, and a lampshade. The plurality of red light-emitting diodes and the plurality of blue light-emitting diodes are disposed at one end of the circuit board. The control element is disposed at another end of the circuit board. The lampshade is disposed above the plurality of red light-emitting diodes, the plurality of blue light-emitting diodes, the control element, and the circuit board. The lampshade comprises a lens for concentrating and emitting light uniformly. The lampshade is fixed on a top of a police car. Wherein, the number of the plurality of red light-emitting diodes is equal to the number of the plurality of blue light-emitting diodes. The system acts a deterrent effect on the dangerous behavior.

Abstract: An image recognition-based electric speaker includes a U-shaped iron for increasing magnetic field and improving anti-magnetism, a magnet installed on the U-shaped iron for generating magnetic field, a washer installed on the magnet for increasing the magnetic field and magnetic permeability, a voice coil installed on the washer for electrically conducting power, a voice coil paper tube installed on the voice coil, a damper installed around the voice coil for maintaining the magnetic gap and improving the capability of withstanding power, a box holder mounted around the low-frequency suspension edge, a gasket installed at the lower edge of the box holder for sealing the box holder airtightly, a low-frequency suspension edge disposed around the mid-frequency vibrating plate, a high-frequency anti-dust cap installed on the voice coil paper tube, and a mid-frequency vibrating plate disposed around the anti-dust cap. This invention has the effect of reducing criminal activities.

Abstract: A warning light scintillation intensity control platform includes a cylindrical mounting base, a scintillation driver, a monochromatic light emitting device, a haze detection device, a CCD sensing device and an STM32 control chip. The cylindrical mounting base is configured to fix the monochromatic light emitting device on a police car. The scintillation driver is connected with the monochromatic light emitting device for controlling a light emission mode of the monochromatic light emitting device. The haze detection device is used for detecting the present haze concentration. The CCD sensing device is used to output a surrounding image of the police car. The STM32 control chip is respectively connected with the scintillation driver, the haze detection device and the CCD sensing device and is used for sending a scintillation control signal to the scintillation driver. According to the present invention, the warning effect of the warning light can be improved.

Abstract: A warning light scintillation intensity control platform includes a cylindrical mounting base, a scintillation driver, a monochromatic light emitting device, a haze detection device, a CCD sensing device and an STM32 control chip. The cylindrical mounting base is configured to fix the monochromatic light emitting device on a police car. The scintillation driver is connected with the monochromatic light emitting device for controlling a light emission mode of the monochromatic light emitting device. The haze detection device is used for detecting the present haze concentration. The CCD sensing device is used to output a surrounding image of the police car. The STM32 control chip is respectively connected with the scintillation driver, the haze detection device and the CCD sensing device and is used for sending a scintillation control signal to the scintillation driver. According to the present invention, the warning effect of the warning light can be improved.

Abstract: A self-adjusting spherical speaker includes a remote control handle, a megaphone, a vibration sensor, an alarm, a spherical speaker body and a digital signal processor. The remote control handle is provided for issuing a manual control signal according to user's input; the digital signal processor controls a playing mode of the spherical speaker body according to the manual control signal; the vibration sensor is provided for detecting the amplitude of vibration of a police car body. If the digital signal processor determines that the amplitude of vibration of the police car body is greater than a predetermined vibration threshold, the alarm will be controlled to carry out an alarm operation, and the digital signal processor will convert a user's voice received by the megaphone into an electrical control signal to control the playing mode of the spherical speaker. Therefore, the operating mode of the spherical speaker can be self-adjusted.

Abstract: An image recognition-based electric speaker includes a U-shaped iron for increasing magnetic field and improving anti-magnetism, a magnet installed on the U-shaped iron for generating magnetic field, a washer installed on the magnet for increasing the magnetic field and magnetic permeability, a voice coil installed on the washer for electrically conducting power, a voice coil paper tube installed on the voice coil, a damper installed around the voice coil for maintaining the magnetic gap and improving the capability of withstanding power, a box holder mounted around the low-frequency suspension edge, a gasket installed at the lower edge of the box holder for sealing the box holder airtightly, a low-frequency suspension edge disposed around the mid-frequency vibrating plate, a high-frequency anti-dust cap installed on the voice coil paper tube, and a mid-frequency vibrating plate disposed around the anti-dust cap. This invention has the effect of reducing criminal activities.

Abstract: A solar speaker self-adjusting control system includes a photovoltaic panel, a voltage conversion device, a speaker device, an embedded processing device, and a calling device. The photovoltaic panel is for receiving solar energy and outputting a voltage signal; the voltage conversion device is connected to the photovoltaic panel for converting the voltage signal outputted by the photovoltaic panel into voltage values required by the system; the embedded processing device is connected to the calling device and speaker device for converting a voice signal transmitted from the calling device into a control current that drives the operation of the speaker device; and the calling device is embedded into a dashboard at a front end of the motor vehicle and connected to the embedded processing device installed in the dashboard at the front end of the motor vehicle through a cable. This system achieves the self-adjusting control effect of a solar speaker.

Abstract: A traffic flow detection-based LED alarm lamp includes a red LED device, a blue LED device, an alarm lamp leg, a mounting assembly and a reinforcing plate. The red LED device and the blue LED device are installed parallelly and fixed to the top of a police car through the alarm lamp leg. The mounting assembly includes a nut and a bolt for fixing the alarm lamp leg to the top of the police car, and a reinforcing plate installed onto an inner side of a police car rooftop for reinforcing the fixation of the alarm lamp leg. The red LED device emits light with a first lighting frequency and the blue LED device emits light with a second lighting frequency. This invention can improve the warning effect of the LED alarm lamp.