TWM479248U - Vehicle driving recorder having collision sensing video recording function - Google Patents

Description

Driving recorder with collision sensing recording function

The present invention relates to a driving recorder, and more particularly to a driving recorder capable of detecting a collision and performing video recording.

In order to avoid the collision, the existing vehicles can not clarify the truth and responsibility. Most of the vehicles will be equipped with a driving recorder at the front windshield of the vehicle. The driving recorder continuously captures the image of the vehicle in motion to provide an accident. The complete driving situation is convenient for evidence of responsibilities after the accident. In order to improve the imagery of driving recorders, the existing manufacturers of driving recorders focus on improving the resolution of images, such as the improvement of general image quality to high image quality (such as VGA to 720P or 1080P), and increased shooting. The number of frames (such as 30FPS increased to 60FPS) and increased shooting angle (such as the viewing angle increased from 110 degrees to 140 degrees or higher), so that the upgraded driving recorder can provide clearer and more detailed than the existing driving recorder. A wider shot. The operation mode of the existing driving recorder is to supply power to the driving recorder when the vehicle is started, and the driving recorder stores the image or picture taken by the driving recorder as one or more image files at a fixed time, and writes to the driving recorder. The memory card stores the captured image file. When the memory card is full, the oldest stored image file is deleted to facilitate repeated recording of the image; the above is archived at a fixed time (every 3 minutes, every 5 minutes or time setting axis). Increasing the speed of searching for image files at a specific time and avoiding the problem of invalid or unreadable if the image file is corrupted when recording a single image file for an extended period of time.

However, regardless of how clear or wide the image is taken by the upgraded driving recorder, the general vehicle does not supply external power to the driving recorder in the flameout state, so the driving recorder is in the off state. When the vehicle is hit by an external force or collided with other vehicles at this time, it is impossible to capture an image of a collision or impact accident, and it is not easy to clarify the responsibility of the accident because the vehicle being driven is not at the scene, so the existing driving recorder is turned off after the vehicle is turned off. Or the protection of the collision accident after the drive recorder is turned off is still insufficient.

As mentioned above, although the existing driving recorder has improved the quality of the recorded image and has the function of repeating the recording, there is still a deficiency in the protection of the collision accident after the vehicle is turned off or the driving recorder is turned off, so the main type of the present invention is The purpose of the invention is to provide a driving recorder with a collision-sensing recording function, which mainly comprises a sensor and a backup power source in the driving recorder, wherein the sensor detects whether a collision occurs, and if a collision occurs, the battery is powered by the backup power source. In order to enable the driving recorder to start the recording function, it is possible to solve the problem that the image cannot be recorded in the event of a collision due to the absence of an external power source after the existing vehicle is turned off or the driving recorder is turned off.

The main technical means for achieving the foregoing purpose is that the driving recorder with the collision-sensing recording function includes: a control module comprising a video mode and a sleep mode, the video mode receiving a first video signal And converting to a second image signal, the control module receives a power control signal to convert the sleep mode into a video mode; a camera module is electrically connected to the control module, and the camera module obtains an external image and converts a first video signal; a memory card module electrically connected to the control module, wherein the memory card module is configured to store the second image signal output by the control module as more than one image file; The unit is electrically connected to the control module, wherein the collision sensing unit is configured to detect acceleration and convert into a sensing signal; a power management unit electrically connected to the control module and the collision sensing unit respectively, the power management The unit receives the sensing signal of the collision sensing unit and outputs the power control signal to the control module; a power module, and the control module respectively The camera module, the memory card module, the collision sensing unit and the power management unit are electrically connected to provide power required for each module; thereby, the collision sensing unit detects the acceleration when the acceleration exceeds a set value, that is, the output sense The test signal causes the power management unit to wake up the control module in the sleep mode, and the control module converts from the sleep mode to the video mode to record the image file.

The driving recorder with the collision-sensing recording function formed by the foregoing components, by providing the collision sensing unit, the power management unit and the power module in the driving recorder, so that the driving recorder has no external power supply (the vehicle is turned off) ) or in the off state, the power module can still be powered to make the control module sleep mode, and the collision sensing unit continuously detects whether the acceleration exceeds a set value (collision occurs) to wake up the control mode in the event of a collision. The group enters the video mode, and the power module provides the power required by each module for video recording and archiving, and solves the problem that the image cannot be recorded in the event of a collision without the external power supply after the existing vehicle is turned off or the driving recorder is turned off. .

With reference to FIG. 1 , the driving recorder of the present invention includes a control module 10 , a memory card module 20 , a collision sensing unit 30 , and a power module 40 . A power management unit 41 and a camera module 50. The control module 10 is electrically connected to the memory card module 20, the collision sensing unit 30, the power module 40, the power management unit 41, and the camera module 50. The power module 40 provides the control module 10 and the memory. The card module 20, the collision sensing unit 30, the power management unit 41, and the camera module 50 require power. In the preferred embodiment, the memory card module 20 includes an SD card slot (not shown) and an SD memory card (not shown) externally inserted into the SD card slot.

Referring to FIG. 2, the power module 40 is a DC power supply (DC 5V/1A) that is externally input, and is converted to a different DC voltage (for example, 3.3V, 3.0V) by a plurality of power converters (Converters). The power module 40 is provided with a charging unit 42 and a battery unit 43. The charging unit 42 is connected to the battery unit 43. The power module 40 is provided with a charging unit 42 and a battery unit 43. Electrically connected, the charging unit 42 converts an externally input DC power source (5V) into a voltage (4.2V) required by the battery unit 43 to charge the battery unit 43 (3.7V). In the preferred embodiment, the battery unit 43 is a lithium battery.

Still referring to FIG. 1 , the control module 10 includes a video mode and a sleep mode, where the video module 40 receives the external DC power and directly supplies the power of the control module 10 The group 50 captures an external image and stores it in the memory card module 20. The sleep mode means that when there is no external DC power input or the driving recorder is turned off, the control module 10 minimizes its power consumption to reduce consumption. The battery unit 43 is powered, but the control module 10 can still wake up one of the power control signals output by the power management unit 41 to convert the sleep mode to the video mode. As shown in FIG. 1 , the control module 11 has an image conversion unit 11 and a collision lock unit 12 . When the control module 10 is in the recording mode, the image conversion unit 11 is one of the output of the receiving camera module 50 . The first image signal is converted to output a second image signal (such as H.264, AVI or MPEG), and the second image signal is sent to the memory card module 20 for storage as an image file; the collision lock unit 12 is a sensing signal generated by the receiving collision sensing unit 30. When the sensing signal is greater than a preset value set by the collision locking unit 12, it is determined that a collision occurs and the image file stored at this time is locked, and the corresponding output is output. A control signal is sent to the memory card module 20. In the preferred embodiment, the IC number of the control module 10 is SQ1920.

The memory card module 20 sequentially stores the second image signal as one or more image files according to the set time interval or fixed time interval, and the time interval can be set to 3 minutes or 5 minutes, that is, every 3 minutes. Or 5 minutes to store the second image signal of the period as an image file, and continue to store the image file until the SD memory card capacity of the memory card module 20 is full, and when the memory card module 20 has the SD memory card capacity When the amount is full, it automatically overwrites the earliest stored image file, so that the memory card module 20 can repeatedly record images without frequent replacement of the recorded SD memory card, but when a collision occurs, the previously stored collision occurs. The image file of the screen may be covered by the subsequent image file, so the memory card module 20 receives the control signal of the collision lock unit 12 to lock the stored image file of the collision screen, and avoid the image. The file was overwritten or disappeared. In the preferred embodiment, the size of the image file that can be locked and stored by the memory card module 20 is 30% of the total capacity, and the collision lock unit 12 can be externally manually (such as a manual lock button). Another control signal is generated to lock the desired image file.

As shown in FIG. 3 and FIG. 4, the control module 10 includes an image connection interface (Sensor I/F), and the image connection interface (Sensor I/F) is an electrical connection of the camera module 50. The control module 10 and The photography module 50 is divided into two different circuit boards. As shown in FIG. 3, the image connection interface (Sensor I/F) has a plurality of pins (SN_MCLK, SN_HCLK, SN_D2 to SN_D11, SN_RST, SN_SDA, SN_SCL), and the pins are respectively connected to one of FIG. The first connector 101. As shown in FIG. 5 and FIG. 6 , the camera module 50 is connected to a second connector 501 , which is located on a different circuit board from the first connector 101 and is matched with each other. As shown in FIG. 6, the camera module 50 has a plurality of pins (SN_MCLK, SN_HCLK, SN_D2 to SN_D11, SN_RST, SN_SDA, SN_SCL) corresponding to the image connection interface, and the pins are respectively connected to the second connector 501. Therefore, the camera module 50 can be electrically connected to the control module 10 through the second connector 501 and the first connector 101.

As shown in FIG. 7 and FIG. 8 , the collision sensing unit 30 is electrically connected to the control module 10 through an I2C connection interface. The I2C connection bread comprises an SCL pin and an SDA pin, and the collision sensing unit is further 30 has an interrupt pin (INT), the power management unit 41 has a power interrupt pin (PWR_INT), the interrupt pin (INT) is electrically connected to the power interrupt pin (PWR_INT), the collision sensing unit 30 The detected acceleration is converted into the aforementioned sensing signal (G_INT) and sent to the power management unit 41 to cause the power management unit 41 to wake up the control module 10. In the preferred embodiment, the collision sensing unit 30 is an accelerometer, an accelerometer, an acceleration sensor or a gravitational acceleration sensor (G-Sensor); its IC number is DMARD07.

As shown in FIG. 8 and referring to FIG. 9, the power management unit 41 further has a power control pin (PWR_CTRL). The control module 10 has a control pin (PRSW2), and the power management unit 41 controls the power supply. The pin (PWR_CTRL) is electrically connected to the control pin (PRSW2) of the control module 10. After receiving the sensing signal of the collision sensing unit 30, the power management unit 41 transmits power control through its power control pin (PWR_CTRL). The signal is sent to the control module 10 to wake up the control module 10 in the sleep mode. In the preferred embodiment, the IC number of the power management unit 41 is SQ151.

It can be seen from the above that by providing the collision sensing unit 30, the power management unit 41 and the power module 40 in the driving recorder, the driving recorder is still in the state of the vehicle being turned off (no external power supply is provided) or is turned off. The power module 40 can be powered to wake up the control module 10 to enter the recording mode in the event of a collision, and the power module 40 can provide the power required by each module for recording and archiving, and solve the problem that the existing vehicle is turned off or the driving recorder is turned off. After that, there is no problem that the image cannot be recorded in the event of a collision due to the absence of an external power supply.

10‧‧‧Control Module
11‧‧‧Image Conversion Unit
12‧‧‧ Collision lock unit
20‧‧‧ memory card module
30‧‧‧ Collision sensing unit
40‧‧‧Power Module
41‧‧‧Power Management Unit
42‧‧‧Charging unit
42‧‧‧ battery unit
50‧‧‧Photography module

1 is a block diagram of a circuit of a preferred embodiment of the present invention. 2 is a circuit block diagram of a power module of a preferred embodiment of the present invention. 3 is a circuit diagram of an image connection interface of a control module according to a preferred embodiment of the present invention. 4 is a circuit diagram of a first connector of a preferred embodiment of the present invention. Figure 5 is a circuit diagram of a second connector of a preferred embodiment of the present invention. 6 is a circuit diagram of a photographic module of a preferred embodiment of the present invention. 7 is a circuit diagram of a collision sensing unit in accordance with a preferred embodiment of the present invention. FIG. 8 is a circuit diagram of a power management unit and a partial control module according to a preferred embodiment of the present invention. 9 is a circuit diagram of a portion of a control module of a preferred embodiment of the present invention.

10‧‧‧Control Module

11‧‧‧Image Conversion Unit

12‧‧‧ Collision lock unit

20‧‧‧ memory card module

30‧‧‧ Collision sensing unit

40‧‧‧Power Module

41‧‧‧Power Management Unit

50‧‧‧Photography module

Claims (9)

A driving recorder with a collision-sensing recording function includes: a control module comprising a video mode and a sleep mode, the video mode receiving a first image signal and converting into a second image signal, the control The module receives a power control signal to convert the sleep mode to the video mode; a camera module is electrically connected to the control module, the camera module obtains an external image and converts to the first image signal; The group is electrically connected to the control module, wherein the memory card module is configured to store the second image signal output by the control module as one or more image files; and a collision sensing unit electrically connected to the control module, The collision sensing unit is configured to detect acceleration and convert into a sensing signal. A power management unit is electrically connected to the control module and the collision sensing unit respectively, and the power management unit is configured to receive the sensing signal of the collision sensing unit. And outputting the foregoing power control signal to the control module; a power module, which respectively corresponds to the control module, the photographic module, the memory card module, and the collision sensing list And the power management unit is electrically connected to provide power required by each module; thereby, when the collision sensing unit detects that the acceleration exceeds a set value, the sensing signal is output to cause the power management unit to wake up the control mode in the sleep mode. Group, the control module converts from sleep mode to video mode to record image files. The driving recorder with the collision sensing recording function according to claim 1, the collision sensing unit has an interrupt pin (INT), and the power management unit has a power interruption pin (PWR_INT), and the interrupt pin ( INT) is electrically connected to the power interrupt pin (PWR_INT). The power management unit has a power control pin (PWR_CTRL), and the control module has a control pin (PRSW2), and the power management unit is powered by the driving recorder with the collision sensing recording function. The control pin (PWR_CTRL) is electrically connected to the control pin (PRSW2) of the control module. The driving recorder with the collision sensing recording function described in claim 3, the control module includes an image connection interface, and the image connection interface is electrically connected to the photography module. The driving recorder with the collision sensing recording function described in claim 4, the power module includes a plurality of power converters, wherein the power module is a DC power source that obtains an external input, and is converted to different by each power converter. The DC voltage is used to supply the power required by each module, and the power module is provided with a charging unit and a battery unit, and the charging unit is electrically connected to the battery unit. The driving recorder of the collision sensing recording function according to claim 5, wherein the memory card module stores the second image signal as an image file according to the set time interval, and successively stores the image file until the memory card module The memory card capacity of the group is full, and the memory card capacity of the memory card module automatically overwrites the earliest stored image file when the memory card capacity is full. The driving recorder with the collision sensing recording function according to any one of claims 1 to 6, wherein the collision sensing unit is electrically connected to the control module through an I2C connection interface, and the I2C connection bread contains an SCL pin. And an SDA pin, the sensing signal of the collision sensing unit is transmitted to the control module by the SCL pin and the SDA pin. The driving recorder with a collision-sensing recording function according to any one of claims 1 to 6, wherein the collision sensing unit is an accelerometer, an accelerometer, an acceleration sensor or a gravity acceleration sensor (G) -Sensor). The driving recorder with the collision sensing recording function described in claim 7 is an accelerometer, an accelerometer, an acceleration sensor or a gravitational acceleration sensor (G-Sensor).