WO2018137493A1 - 车载监控系统 - Google Patents

车载监控系统 Download PDF

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Publication number
WO2018137493A1
WO2018137493A1 PCT/CN2018/071898 CN2018071898W WO2018137493A1 WO 2018137493 A1 WO2018137493 A1 WO 2018137493A1 CN 2018071898 W CN2018071898 W CN 2018071898W WO 2018137493 A1 WO2018137493 A1 WO 2018137493A1
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WO
WIPO (PCT)
Prior art keywords
recording unit
vehicle
unit
monitoring system
power supply
Prior art date
Application number
PCT/CN2018/071898
Other languages
English (en)
French (fr)
Inventor
梁度荣
Original Assignee
深圳市邻友通科技发展有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 深圳市邻友通科技发展有限公司 filed Critical 深圳市邻友通科技发展有限公司
Publication of WO2018137493A1 publication Critical patent/WO2018137493A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/18—Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0211—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for record carriers apparatus, e.g. video recorders, tape players or CD players
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/02—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof
    • B60R11/0247—Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the like; Arrangement of controls thereof for microphones or earphones
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R11/04—Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C5/00—Registering or indicating the working of vehicles
    • G07C5/08—Registering or indicating performance data other than driving, working, idle, or waiting time, with or without registering driving, working, idle or waiting time
    • G07C5/0841—Registering performance data
    • G07C5/085—Registering performance data using electronic data carriers
    • G07C5/0866—Registering performance data using electronic data carriers the electronic data carrier being a digital video recorder in combination with video camera
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/76—Television signal recording
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/005—Connection with the vehicle part
    • B60R2011/0056—Connection with the vehicle part using suction cups
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/0064—Connection with the article
    • B60R2011/007—Connection with the article using magnetic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R11/00—Arrangements for holding or mounting articles, not otherwise provided for
    • B60R2011/0042—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means
    • B60R2011/0049—Arrangements for holding or mounting articles, not otherwise provided for characterised by mounting means for non integrated articles
    • B60R2011/0064—Connection with the article
    • B60R2011/0071—Connection with the article using latches, clips, clamps, straps or the like

Definitions

  • the application relates to the field of vehicle electronics, such as an in-vehicle monitoring system.
  • the driving recorder is an instrument that records information such as images and sounds while the vehicle is traveling, and is equivalent to the "black box" of the vehicle.
  • the traditional driving recorder starts working after the vehicle is started, records the image data during the driving process, and the driving recorder is turned off after the vehicle is turned off. Therefore, the traditional driving recorder cannot perform parking monitoring.
  • a vehicle battery is used to supply power to the driving recorder to maintain the driving recorder when the vehicle is turned off.
  • this method can cause damage to the battery of the vehicle, affect the service life of the battery, and if the vehicle does not start for a certain period of time, it is likely to exhaust the power of the battery, resulting in the vehicle not being able to ignite.
  • the present application provides an on-board monitoring system that can achieve parking monitoring without taking power from a vehicle battery when the vehicle is turned off.
  • An embodiment of the present application provides an in-vehicle monitoring system, including a recording unit and a power supply unit independent of the recording unit, the power supply unit is configured to supply power to the recording unit and control the recording unit to enter a sleep mode.
  • the power supply unit is configured to detect a power-on state of the power output interface of the vehicle.
  • the in-vehicle monitoring system further includes a conversion unit electrically connected to the power output interface of the vehicle through the conversion unit.
  • the power output interface of the vehicle is a cigarette lighter or a Universal Serial Bus (USB) interface.
  • USB Universal Serial Bus
  • the power supply unit when the power supply unit detects that the power output interface of the vehicle is powered off, the power supply unit controls the recording unit to enter a sleep mode, and separately supplies power to the recording unit by using the stored energy.
  • the power supply unit when the power supply unit detects that the power output interface of the vehicle is powered on, the power supply unit stops supplying power to the recording unit by using the stored energy.
  • the power supply unit is in a shutdown mode from the moment when the power output interface of the vehicle is detected to be energized until the first preset time is reached.
  • the recording unit operates by using the power outputted by the power output interface of the vehicle.
  • the power supply unit stops detecting the power-on state of the power output interface of the vehicle from the moment when the power supply unit detects that the power output interface of the vehicle is powered on until the second preset time is reached.
  • the in-vehicle monitoring system further includes a positioning unit that is independent of the recording unit and is electrically connected to the recording unit and the power supply unit through wires.
  • the power supply unit transmits power and signals to the recording unit through the wire and the positioning unit; the positioning signal generated by the positioning unit is transmitted to the recording unit through the wire.
  • the in-vehicle monitoring system further includes a remote control unit, and the remote control unit is configured to control the recording unit to perform a snap action.
  • the remote control unit controls the recording unit to perform a snap action by transmitting a wireless signal.
  • the vehicle monitoring system further includes a base connected to the recording unit, the recording unit is fixed in the vehicle through the base, and the recording unit and the base are connected by magnetic attraction, the base comprises a suction cup and a bracket disposed on the suction cup, and the bracket comprises The latching member on the surface of the bracket and the supporting member received in the bracket are respectively connected with the latching member and the suction cup, and the bracket is provided with an opening portion with an opening outward.
  • the recording unit includes a lens module, a recording unit control module, a wireless communication module, a collision sensing module, a temperature sensing module, and a heat dissipation module.
  • the in-vehicle monitoring system performs data transmission with the user's mobile terminal device through the wireless communication module.
  • the recording unit when the recording unit is in the sleep mode, when the collision sensing module senses abnormal vibration of the vehicle, the recording unit is triggered to perform the recording operation.
  • the recording unit when the recording unit is working normally, when the collision sensing module senses a collision of the vehicle, the recording unit is triggered to perform a recording action.
  • the recording unit control module controls the heat dissipation module to start working.
  • the power supply unit includes: a vehicle state detecting module, configured to detect a power-on state of the power output interface of the vehicle; and a sleep signal sending module, where the sleep signal is sent when the vehicle state detecting module detects that the power output interface of the vehicle is powered off The module issues a sleep signal to the recording unit.
  • a vehicle state detecting module configured to detect a power-on state of the power output interface of the vehicle
  • a sleep signal sending module where the sleep signal is sent when the vehicle state detecting module detects that the power output interface of the vehicle is powered off The module issues a sleep signal to the recording unit.
  • the collision sensing module continues to work, and other modules in the recording unit stop working.
  • the power supply unit can be used to control the recording unit to enter the sleep mode, so that the all-weather monitoring of the vehicle can be realized, and the hidden danger that the vehicle electronic device can directly take power from the vehicle battery can be avoided.
  • FIG. 1 is a perspective assembled view of an in-vehicle monitoring system in an embodiment of the present application
  • FIG. 2 is an exploded perspective view of a recording unit and a base of the vehicle monitoring system in the embodiment of the present application;
  • FIG. 3 is an exploded perspective view showing another view of the recording unit and the base shown in FIG. 2;
  • FIG. 4 is a schematic diagram of an internal structure of a power supply unit of an in-vehicle monitoring system according to an embodiment of the present application
  • FIG. 5 is a schematic diagram of an internal structure of a remote control unit of an in-vehicle monitoring system according to an embodiment of the present application
  • FIG. 6 is a schematic structural diagram of an in-vehicle monitoring system in another embodiment of the present application.
  • FIG. 7 is a schematic structural diagram of an in-vehicle monitoring system in another embodiment of the present application.
  • FIG. 8 is a schematic diagram of interface connection of the vehicle monitoring system shown in FIG. 7;
  • FIG. 9 is a schematic structural diagram of an in-vehicle monitoring system in another embodiment of the present application.
  • a module can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
  • an in-vehicle monitoring system includes a recording unit 1 and a power supply unit 2 independent of the recording unit 1.
  • the recording unit 1 and the power supply unit 2 are electrically connected by a wire 5.
  • the power supply unit 2 is for supplying power to the recording unit 1 and controlling the recording unit 1 to enter a sleep mode.
  • the power supply unit 2 detects the power-on state of the power output interface of the vehicle, when the power supply unit 2 detects that the power output interface of the vehicle is powered off.
  • the power supply unit 2 controls the recording unit 1 to enter the sleep mode, and separately supplies power to the recording unit 1 using the stored electric energy.
  • the power supply unit 2 stops supplying power to the recording unit 1 using the power stored by itself.
  • the onboard monitoring system further comprises a conversion unit 3, which is electrically connected to the power output interface of the vehicle via the conversion unit 3. Since the operating voltage of the power supply unit 2 may not match the power output interface voltage of the vehicle, it is necessary to transform by the conversion unit 3. If the power output interface voltage of the vehicle matches the operating voltage of the power supply unit 2, for example, when the power output interface is a USB interface, the power supply unit 2 can also be directly connected to the power output interface of the vehicle without passing through the conversion unit 3.
  • the onboard monitoring system further comprises a positioning unit 4 which is independent of the recording unit 1 and is electrically connected to the recording unit 1 and the power supply unit 2 via wires 5, respectively.
  • the power supply unit 2 is connected to the positioning unit 4 through the front portion of the wire 5, so that the positioning unit 4 obtains electric energy, and the electric energy and the sleep signal pass through the positioning unit 4, and are transmitted to the recording unit 1 through the rear portion of the wire 5.
  • the positioning signal generated by the positioning unit 4 is also transmitted to the recording unit 1 through the rear section of the wire 5. In this way, only one wire is needed to realize the connection of the above components, and the product integration is high.
  • the surface of the positioning unit 4 may be provided with a bonding member for fixing the positioning unit 4 in the vehicle.
  • the in-vehicle monitoring system further includes a remote control unit 6 for controlling the recording unit 1 to perform a snap action.
  • the remote control unit 6 communicates with the recording unit 1 using 2.4G wireless communication technology, and the remote control unit 6 transmits a wireless signal to the recording unit 1, and the recording unit 1 receives the signal to perform a snap action.
  • Bluetooth technology is also used for communication between the remote control unit 6 and the recording unit 1.
  • the in-vehicle monitoring system further includes a base 7 connected to the recording unit 1, and the recording unit 1 is fixed in the vehicle through the base 7.
  • the recording unit 1 is rotatably coupled to the base 7 to facilitate the user to adjust the shooting angle of the recording unit 1.
  • Fig. 2 shows an exploded perspective view of the recording unit 1.
  • the recording unit 1 includes a casing 11 enclosing a receiving cavity, an upper cover 12 that is housed in the casing 11, and an actuator such as a main control board 13, a power supply board 14, a camera 15, and a capacitor 16 housed in the housing chamber.
  • the main control board 13 and the power supply board 14 are electrically connected to each other, and the camera 15 and the capacitor 16 are electrically connected to the main control board 13 and the power supply board 14, respectively.
  • the main control board 13 is responsible for data collection, calculation and command output, and controls each actuator to perform corresponding operations; the power board 14 supplies power to the main control board 13 and other actuators.
  • the power board 14 is provided with a first USB interface 140, and the upper cover 12 is provided with an opening 120.
  • the wire 5 is connected to the first USB interface 140 through the opening 120, thereby supplying power to the recording unit 1 and transmitting data.
  • the recording unit 1 further includes a memory connected to the main control board 13, which can store an image taken by the camera 15.
  • the main control board 13 is disposed in parallel with the power supply board 14 and is connected to each other through the pin headers.
  • the capacitor 16 is located between the main control board 13 and the power supply board 14, and the internal structure of the recording unit 1 is compact. When the recording unit 1 is powered on, the power board 14 charges the capacitor 16; when the power is turned off, the capacitor 16 discharges power to ensure that the recorded data is normally saved to the memory.
  • a plurality of heat dissipation holes 110 are respectively disposed on two sides of the outer casing 11, and a silent fan 18 electrically connected to the main control board 13 is further disposed in the receiving cavity.
  • the silent fan 18 is close to the heat dissipation hole 110 on one side thereof, and the external air is sucked into the receiving cavity from the side, and the air flows through the receiving cavity and is discharged from the heat dissipation hole 110 on the other side, so that the heat dissipation effect can be achieved.
  • a microphone 19 electrically connected to the main control board 13 and away from the silent fan 18 is also disposed in the receiving cavity.
  • the microphone 19 is close to the camera 15, and the sound is collected while the camera 15 takes an image.
  • a reminder element such as an indicator light or a speaker, may also be provided in the receiving cavity for displaying or voice prompting the use state of the recording unit 1. Since the camera 15 is used for photographing the outside of the vehicle, and the presenting means is for displaying the state of the recording unit 1 to the user in the vehicle, the indicator light and the speaker are both disposed away from the camera 15.
  • FIG. 2 also shows an exploded perspective view of the base 7.
  • the base 7 includes a hollow bracket 71 and a fixing portion 72 and a connecting portion 73 respectively located at both ends of the bracket 71.
  • the base 7 is fixed to a mounting surface of the vehicle by a fixing portion 72, such as a windshield of an automobile, and is connected to the upper cover 12 of the recording unit 1 via a connecting portion 73.
  • the connecting portion 73 includes a rotating portion 731 and an iron piece 732 located at the bottom of the rotating portion 731, and the rotating portion 73 is rotatably coupled to the bracket 71 via the rotating portion 731.
  • a magnet 121 is disposed at the center of the upper cover 12 of the recording unit 1, and the magnet 121 is attracted to the iron piece 732, so that the connecting portion 73 of the base 7 is connected to the recording unit 1 by magnetic force.
  • the base 7 and the recording unit 1 are magnetically connected by a magnet, and the recording unit 1 can be rotated 360° with respect to the base 7.
  • the connection between the base 7 and the recording unit 1 may be other than the magnetic connection, as long as the rotation of the recording unit 1 relative to the base 7 can be fixed.
  • the bracket 71 is provided with an opening portion 711 which is open to the outside, and the wire 5 is clamped by the clamping portion 711.
  • the wire 5 is prevented from being too messy due to excessive length, and on the other hand, the wire 5 and the recording unit 1 are firmly connected. It is not easy to pull the wire 5 inadvertently, causing the connection of the recording unit 1 to the power source to be disconnected.
  • FIG. 3 is an exploded perspective view of another view of the recording unit 1 and the base 7 shown in FIG. 2.
  • the fixing portion 72 includes a suction cup 721, a support member 722 protruding from the center of the suction cup 721 perpendicular to the plane of the suction cup toward the bracket 71, a base 723 accommodating the suction cup 721 and the support member 722, and a suction cup 721 and a base 723.
  • Spring 724 between.
  • the spring 724 is sleeved on the support member 722, and its two ends are opposite to the suction cup 721 and the base 723, respectively.
  • the support member 722 is provided with a bolt at one end away from the suction cup 721.
  • the bracket 71 is further provided with a latching member 712.
  • the latching member 712 abuts against the base 723 and is rotatably connected to the support member 722 by bolts.
  • the latching member 712 pushes the base 723 to press the base 723 against the suction cup 721, and the air of the suction cup 721 and the mounting surface is discharged, so that the suction cup 721 is stably adsorbed to the mounting surface.
  • FIG. 4 there is shown an internal structural view of the power supply unit 2, which also shows the conversion unit 3.
  • the power supply unit 2 includes a housing 21 enclosing a cavity, a cover 22 covered in the housing 21, a circuit board 23 housed in the cavity, and a rechargeable battery 24 electrically connected to the circuit board 23.
  • the conversion unit 3 is fixed to one end of the housing 21 by bolts, and is electrically connected to the circuit board 23, and the conversion unit 3 can rotate at a certain angle with respect to the housing 21 while ensuring the circuit is turned on, which is convenient.
  • the user adjusts the position of the power supply unit 2 when the conversion unit 3 is inserted into the cigarette lighter.
  • the power output interface of the vehicle is a cigarette lighter
  • the conversion unit 3 is a vehicle charging head.
  • One end of the power supply unit 2 remote from the conversion unit 3 is provided with a second USB interface 26 electrically connected to the circuit board 23, and the wire 5 is connected to the second USB interface 26.
  • the circuit board 24 is provided with a charging circuit and a boosting circuit.
  • the converting unit 3 takes power from the power output interface of the vehicle, charges the rechargeable battery 24 through the charging circuit, and the electricity of the rechargeable battery 24 is processed by the boosting circuit from the second USB interface.
  • the output is used by the recording unit 1 or other devices.
  • the number of the second USB interfaces 26 can be adjusted as needed. In this embodiment, the number of the second USB interfaces 26 is two.
  • the power supply unit 2 can also supply power to other in-vehicle devices.
  • the power supply unit 2 also includes a button 27. Although the power supply unit 2 is set to be automatically turned on for charging, and is automatically turned on when the power is turned off instead of being turned off, the user can manually control the power supply unit 2 to be turned on or off by the button 27.
  • the power supply unit 2 can also include an indicator light, and the user can know the current working state of the power supply unit 2 through the indicator light.
  • FIG. 5 is an internal structural diagram of the remote control unit 6.
  • the remote control unit 6 is a wireless button, which includes a microprocessor 61, a button 62, a radio frequency chip 63, and a lithium battery 64.
  • the button 62 is disposed above the microprocessor 61
  • the lithium battery 64 is disposed under the microprocessor 61
  • the lithium battery 64 continues to supply power to the microprocessor 61.
  • the microprocessor 61 controls the wireless radio frequency chip 63 to emit a wireless signal
  • the recording unit 1 takes a picture; when the user stops applying force to the button 62, the radio frequency chip 63 stops transmitting the radio signal, and the recording unit 1 resume normal working mode.
  • the remote control unit 6 may take the form of a button other than a device capable of triggering a wireless signal to be triggered by a user's touch.
  • the vehicle monitoring system of the embodiment of the present invention not only realizes the all-weather monitoring of the vehicle, but also avoids the hidden danger that the in-vehicle electronic device can directly take power from the vehicle battery, and has the advantages of simple installation, high degree of automation, versatility and ease of use, and More interesting.
  • FIG. 6 is a schematic structural diagram of an in-vehicle monitoring system in another embodiment.
  • the in-vehicle monitoring system includes a recording unit 10000 and a power supply unit 20000 that are electrically connected to each other.
  • the recording unit 100 includes a lens module 101, a recording unit control module 102, a collision sensing module 103, and a recording unit input interface 104.
  • the power supply unit 200 includes a vehicle state detecting module 201, a power supply unit control module 202, a sleep signal transmitting module 203, and a power supply unit output interface 204.
  • the recording unit input interface 104 is connected to the power supply unit output interface 204.
  • the recording unit control module 102 is electrically connected to the lens module 101, the collision sensing module 103, and the recording unit input interface, respectively; the power supply unit control module 202 and the vehicle state clamping module 201, the sleep signal sending module 203, and the power supply unit output, respectively.
  • the interface 204 is electrically connected.
  • the vehicle state detecting module 201 is configured to detect a power-on state of a power output interface of the vehicle.
  • the power output interface of the vehicle is a cigarette lighter
  • the power supply unit 200 needs to be electrically connected to the cigarette lighter through the conversion unit 3. Since the cigarette lighter is powered when the vehicle is running, 12V voltage is output, the vehicle state detecting module 201 can detect the output voltage at the cigarette lighter; and after the vehicle is turned off, the cigarette lighter is powered off, and the vehicle state detecting module 201 can detect The voltage at the cigarette lighter is zero.
  • the power supply unit control module 202 determines that the vehicle is in the parking-off state, and controls the sleep signal transmitting module 203 to issue a sleep signal.
  • the recording unit 100 After receiving the sleep signal sent by the power supply unit 200, the recording unit 100 enters a sleep mode. In this mode, except that the collision sensing module 103 maintains normal operation, other modules in the recording unit 100 are turned off, and the power supply unit 200 uses the stored energy of the power supply as the collision sensing. Module 103 is powered.
  • the power supply unit 200 further includes a rechargeable battery, a charging module 206, and a discharging module 207.
  • the charging module 206 charges the rechargeable battery.
  • the discharging module 207 is turned off, and the recording unit 100 only uses the electric energy supplied by the power output interface of the vehicle to operate, and the power of the power output interface is output through the power supply unit.
  • the interface 204 supplies power to the recording unit 100.
  • the charging module 206 stops charging the rechargeable battery
  • the discharging module 207 is turned on, and the electrical energy of the rechargeable battery is supplied to the recording unit 100 through the power supply unit output interface 204.
  • the collision sensing module 103 is a gravity sensing chip, and a gravity acceleration sensor is integrated inside the chip for detecting the acceleration of the recording unit 100 in the X/Y/Z axis direction.
  • the collision sensing module 103 sends an abnormal signal to the recording unit control module 102, and the recording unit control module 102 Based on the abnormal signal, it is determined that the vehicle is collided, and the control lens module 101 is activated to perform emergency recording.
  • the recording unit control module 102 controls the lens module 101 to operate for a preset emergency recording time
  • the lens module 101 is closed, and the video image recorded during the emergency video recording period is saved, and then the recording unit 100 re-enters the sleep mode.
  • the emergency recording time is 20 seconds.
  • the recording unit 100 is put into the sleep mode, and the collision sensing module 103 is used to wake up the recording unit 100 for emergency recording when the vehicle is sensed to be collided.
  • the parking monitoring is implemented less frequently, which avoids the hidden danger that the in-vehicle electronic device may directly take power from the vehicle battery.
  • the vehicle state detecting module 201 detects that the power output interface of the vehicle is powered.
  • the power supply unit control module 202 controls the power supply unit output interface 204 to be powered off, and the power supply unit 200 no longer supplies power to the recording unit 100, and the power of the power output interface of the vehicle is also
  • the recording unit 100 cannot be shared by the power supply unit output interface 204, and thus the recording unit 100 enters the shutdown mode. In the shutdown mode, all modules in the recording unit 100, including the collision sensing module 103, are turned off.
  • the power supply unit output interface 204 After the power supply unit output interface 204 is powered off for a preset period of time, the power supply unit output interface 204 is re-energized under the control of the power supply unit control module 202, and the recording unit 100 is powered back on. Since the power is turned on between the conversion unit 3 and the power output interface of the vehicle at this time, the sleep signal transmitting module 203 does not issue a sleep signal, and all modules in the recording unit 100 operate normally. The time when the power supply unit output interface 204 is powered off is counted from the moment when the vehicle state detecting module 201 detects that the power output interface of the vehicle is energized. In the present embodiment, the power-off time is 7.5 seconds.
  • the recording unit control module 102 misjudges that the vehicle is collided, and the lens unit 101 is activated to perform emergency recording, thereby saving unnecessary video images.
  • the power supply unit 200 is set to supply power to the recording unit 100, once the power output interface of the vehicle is detected to be energized, the power supply to the recording unit 100 is stopped immediately, and the power supply interface of the vehicle is cut off to supply power to the recording unit 100, so that the recording can be made. Unit 100 is turned off before the emergency recording is completed, and too much useless recording is not saved.
  • a shielding time may be set that does not detect the power-on state of the power output interface of the vehicle, that is, in the sleep mode, the power supply unit 200 detects that the power output interface of the vehicle is energized for a period of time. It is no longer detected whether the vehicle's power output interface is energized. After a period of shielding time, the power supply unit 200 detects whether the power output interface of the vehicle is powered on.
  • the power supply unit 200 When the power output interface of the vehicle is energized, the power supply unit 200 does not send a signal to the recording unit 100; when the power output interface of the vehicle is powered off, then The power supply unit 200 issues a sleep signal to the recording unit 100, and the recording unit 100 enters the sleep mode again.
  • the collision sensing module 103 can also sense that the acceleration applied in any one of the X/Y/Z axes of the recording unit 100 exceeds a preset collision threshold, and controls the module to the recording unit.
  • the 102 sends an abnormal signal to cause the recording unit control module 102 to control the lens module 101 to perform emergency recording.
  • the recording unit 100 has different collision thresholds for the abnormality signal generated by the collision sensing module 103 in the sleep mode and the normal operation mode. This is because the intensity of the collision between the vehicle and the vehicle when it is stationary is different. If the same collision threshold is set, it will not meet the user's need for emergency recording under different circumstances.
  • the collision threshold of the collision sensing module 103 can be configured by the recording unit control module 102.
  • the recording unit 100 further includes a storage module 105, and the storage module 105 includes a Micro SD card for storing video image files and a serial peripheral interface for storing startup programs and setting parameters.
  • SPI Serial Peripheral Interface
  • Both the Micro SD card and the SPI flash are rewritable memories.
  • the micro SD card includes a buffer area and a latch area. The video images normally recorded by the lens module 101 are stored in the buffer area, and are overwritten by new video images for a certain period of time to save storage space; the lens module 101 is urgently recorded (including sleep).
  • the video images recorded in the mode and the normal working mode are stored in the latch area, and the video image in the latch area is not overwritten, and can only be connected to the user by formatting the Micro SD card or taking out the Micro SD card. The way to read and write on the terminal is deleted.
  • the recording unit 100 further includes a wireless communication module 106.
  • the recording unit 100 can establish a connection with the user's mobile terminal device through the wireless communication module 106 and perform data transmission, so that the user can view the recording unit 100 in the mobile terminal. Video images obtained.
  • the recording unit 100 further includes a temperature sensing module 107 and a heat dissipation module electrically connected to the recording unit control module 102, and the heat dissipation module may be a fan.
  • the temperature sensing module 107 senses that the temperature of the recording unit 100 reaches a preset temperature threshold
  • the recording unit control module 102 controls the fan to start to dissipate heat. After the fan works for a period of time, the temperature of the recording unit 100 decreases.
  • the recording unit control module 102 controls the fan to be turned off and no longer dissipates heat.
  • the collision emphasis ⁇ value, temperature ⁇ value, emergency recording time, power-off time, and shielding time involved in the present application can be preset by the user according to requirements.
  • the in-vehicle monitoring system includes a recording unit 300, a power supply unit 400, and a positioning unit 500.
  • the recording unit 300 includes a recording unit input interface 304
  • the power supply unit 400 includes a power supply unit output interface 404.
  • the positioning unit 500 includes a positioning unit input interface 501 electrically connected to the power supply unit output interface 404, a positioning unit control module 502 electrically connected to the positioning unit input interface 501, a positioning signal receiving module 503 electrically connected to the positioning unit control module 502, and
  • the positioning unit control module 502 is electrically connected to the positioning signal transmitting module 504, and the positioning unit output interface 505 electrically connected to the positioning unit control module 502 and the recording unit input interface 304, respectively.
  • the positioning unit input interface 501 obtains electric energy from the power supply unit output interface 404, maintains the positioning unit 500, the positioning signal receiving module 503 receives the satellite signal, and the positioning unit control module 502 controls the positioning signal sending module 504 to issue a positioning signal, and the positioning signal is output through the positioning unit.
  • the interface 505 is transmitted to the recording unit 300.
  • the in-vehicle monitoring system of the present embodiment can record the traveling path of the vehicle while recording the recording, and supplement the recorded information. Further, since the positioning unit 500 is a unit other than the independent rain recording unit 300, its positioning signal is not disturbed by the recording unit 300, thereby ensuring the accuracy of the positioning information.
  • FIG. 8 is a schematic diagram of interface connection of the vehicle monitoring system in the embodiment shown in FIG. 7, which shows a power supply unit output interface 404, a recording unit input interface 304, and a positioning unit control module 502, respectively.
  • the VCC end of the power supply unit output interface 404 is connected to the VCC end of the recording unit input interface 304, and the ground end of the power supply unit output interface 404 is connected to the ground end of the recording unit input interface 304, and the D+ end and the D-end end of the first output interface are both Connect to the ID end of the second input interface.
  • the D- terminal When the power output interface of the vehicle is powered on, the D- terminal outputs a low level, and the recording unit 300 operates normally; when the power output interface of the vehicle is powered off, the D+ terminal outputs a high-level pulse of 500 milliseconds, and the recording unit 300 passes the recording.
  • the unit input interface 304 receives the pulse and enters a sleep mode.
  • the VCC end of the positioning unit control module 502 is connected to the VCC end of the power supply unit output interface 404, and the ground end of the positioning unit control module 502 is connected to the ground end of the power supply unit output interface 404.
  • the TX end of the positioning unit control module 502 is coupled to the D-end of the recording unit input interface 304 for transmitting satellite signals to the recording unit 300.
  • the D+ end of the recording unit input interface 304 is connected to the ON/OFF end of the positioning unit control module 502 for controlling the working state of the positioning unit 500.
  • the D+ end of the recording unit input interface 304 is high.
  • the positioning unit 500 operates normally; when the recording unit 300 is in the sleep mode, the D+ end of the recording unit input interface 304 is at a low level, and the positioning unit 500 is turned off.
  • the vehicle monitoring system of the present application can realize the following functions by only one wire:
  • the power supply unit 400 simultaneously supplies power to the recording unit 300 and the positioning unit 500;
  • the power supply unit 400 sends a signal to the recording unit 300 to trigger the recording unit 300 to change the working mode
  • the positioning unit 500 transmits a positioning signal to the recording unit 300;
  • the recording unit 300 controls the positioning unit 500 to be turned on and off.
  • the positioning monitoring system of the present application has high integration, is convenient to use, and automatically shuts down units or modules that are not needed in the sleep mode, and can effectively save power.
  • the in-vehicle monitoring system includes a recording unit 600, a power supply unit 700, and a remote control unit 800.
  • the recording unit 600 includes a wireless signal receiving module 609 for wireless communication with the remote control unit 800, a recording unit control module 602 electrically connected to the wireless signal receiving module 609, and a lens module 601 and storage electrically connected to the recording unit control module 602. Module 608.
  • the remote control unit 800 includes a wireless control module 801, a button 802 electrically connected to the wireless control module 801, a lithium battery 803 electrically connected to the wireless control module 801 and supplying power to the wireless control module 801, and an electrical connection with the wireless control module 801 for A wireless signal transmitting module 804 that emits a wireless signal.
  • the wireless control module 801 controls the wireless signal transmitting module 804 to send a wireless signal to the recording unit 600.
  • the recording unit control module 602 controls the lens module 601 to take a photo, and saves the captured photo in the latching area of the storage module 608 without being normally photographed by the lens module 601. Video image file overlay.
  • the presence of the remote control unit 800 allows the user to take a picture with a button while driving, and can take pictures of the journey without distraction, thereby increasing the use mode of the recording unit 600 and improving the interest.
  • the disclosed system, apparatus, and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of cells is only a logical function division.
  • multiple units or components may be combined or may be integrated into another.
  • a system, or some features can be ignored or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interface, device or unit, and can be electrical, mechanical or otherwise.
  • the vehicle monitoring system detects whether the power output interface of the vehicle is powered by the power supply unit, controls the recording unit to enter the sleep mode when the power output interface of the vehicle is not powered, and supplies power to the recording unit by using the stored energy.
  • the collision sensing module works to ensure that the recording unit is awake in the event of an abnormality, so that the vehicle does not need to use the vehicle's own battery to supply power to the recording unit when the vehicle is turned off, and the parking monitoring effect can also be achieved.
  • the embodiment of the present application can realize all-weather monitoring of the vehicle, and avoid hidden dangers that may be caused by the in-vehicle electronic device directly taking power from the vehicle battery.

Abstract

一种车载监控系统，包括记录单元和与记录单元相互独立的供电单元，供电单元设置为向记录单元供电和控制记录单元进入休眠模式。

Description

车载监控系统 技术领域
本申请涉及车辆电子技术领域，例如一种车载监控系统。
背景技术
随着人们的生活水平日益提高，车辆越来越普及，与车辆的安全性、舒适性和方便性相关的技术蓬勃发展，用于提高车辆安全性的行车记录仪等产品应运而生。
行车记录仪是记录车辆行驶途中的影像及声音等资讯的仪器，相当于车辆的“黑匣子”。传统的行车记录仪在车辆启动后就开始工作，记录行车过程中的影像资料，而在车辆熄火后，行车记录仪就会关闭。因此，传统的行车记录仪无法做到停车监控。
相关技术中，采用车辆电瓶为行车记录仪供电，以便在车辆熄火时维持行车记录仪工作。然而，这种方式会对车辆的电瓶造成损伤，影响电瓶的使用寿命，而且在车辆一段时间没有启动的情况下，很可能耗尽电瓶的电能，导致车辆无法点火发动。
发明内容
本申请提供一种既能实现停车监控，又无需在车辆熄火时从车辆电瓶取电的车载监控系统。
本申请实施例提供一种车载监控系统，包括记录单元和与记录单元相互独立的供电单元，该供电单元用于向记录单元供电和控制记录单元进入休眠模式。
可选地，供电单元用于检测车辆的电源输出接口的通电状态。
可选地，车载监控系统还包括转换单元，供电单元通过转换单元与车辆的电源输出接口电连接。
可选地，车辆的电源输出接口为点烟器或通用串行总线(Universal Serial  Bus，USB)接口。
可选地，当供电单元检测到车辆的电源输出接口断电时，供电单元控制记录单元进入休眠模式，并利用自身存储的电能单独地为记录单元供电。
可选地，当供电单元检测到车辆的电源输出接口通电时，供电单元停止利用自身存储的电能向记录单元供电。
可选地，供电单元从检测到车辆的电源输出接口通电的瞬间至达到第一预设时间之前，记录单元处于关机模式。
可选地，供电单元从检测到车辆的电源输出接口通电的瞬间至达到第一预设时间后，记录单元利用车辆的电源输出接口输出的电能进行工作。
可选地，供电单元从检测到车辆的电源输出接口通电的瞬间至达到第二预设时间之前，供电单元停止检测车辆的电源输出接口的通电状态。
可选地，车载监控系统还包括定位单元，该定位单元独立于记录单元，且通过导线分别与记录单元和供电单元电连接。
可选地，供电单元通过导线和定位单元向记录单元传输电能及信号；定位单元产生的定位信号通过导线传送至记录单元。
可选地，车载监控系统还包括遥控单元，遥控单元用于控制记录单元执行抓拍动作。
可选地，遥控单元通过发射无线信号的方式控制记录单元执行抓拍动作。
可选地，车载监控系统还包括与记录单元相连的底座，记录单元通过底座固定于车内，记录单元与底座通过磁吸方式连接，底座包括吸盘和盖设于吸盘的支架，支架包括设置于支架表面的卡扣件和收容于支架内的支撑件，支撑件分别与卡扣件和吸盘相连，支架上设有开口向外的夹持部。
可选地，记录单元包括镜头模块、记录单元控制模块、无线通信模块、碰撞感应模块、温度感应模块以及散热模块。
可选地，车载监控系统通过无线通信模块与使用者的移动终端设备进行数据传输。
可选地，当记录单元处于休眠模式时，碰撞感应模块感测到车辆异常震动 时，会触发记录单元执行录像工作。
可选地，当记录单元正常工作时，碰撞感应模块感测到车辆碰撞时，会触发记录单元执行录像动作。
可选地，当温度感应模块感测到记录单元的温度达到预设的温度阈值时，记录单元控制模块控制散热模块启动工作。
可选地，供电单元包括：车辆状态检测模块，用于检测车辆的电源输出接口的通电状态；及休眠信号发送模块，当车辆状态检测模块检测到车辆的电源输出接口断电时，休眠信号发送模块向记录单元发出休眠信号。
可选地，记录单元接收休眠信号后，碰撞感应模块继续工作，记录单元中的其他模块停止工作。
本申请实施例的车载监控系统在车辆熄火的情况下，可利用供电单元控制记录单元进入休眠模式，可以实现对车辆的全天候监控，避免车载电子设备直接从车辆电瓶取电而可能造成的隐患。
附图说明
图1为本申请实施例中的车载监控系统的立体组合图；
图2为本申请实施例中的车载监控系统的记录单元及底座的立体分解图；
图3为图2所示的记录单元及底座的另一个视角的立体分解图；
图4为本申请实施例中的车载监控系统的供电单元的内部结构示意图；
图5为本申请实施例中的车载监控系统的遥控单元的内部结构示意图；
图6为本申请另一个实施例中的车载监控系统的结构示意图；
图7为本申请另一个实施例中的车载监控系统的结构示意图；
图8为图7所示的车载监控系统的接口连接示意图；
图9为本申请另一个实施例中的车载监控系统的结构示意图。
具体实施方式
以下结合附图及实施例，对本申请进行进一步详细说明。应当理解，此处 所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
如在本申请中所使用的，术语“组件”、“模块”和“系统”等旨在表示计算机相关的实体，它可以是硬件、硬件和软件的组合、软件、或者执行中的软件。例如，模块可以是但不限于是，在处理器上运行的进程、处理器、对象、可执行码、执行的线程、程序和/或计算机。
参见图1，在一个实施例中提供了一种车载监控系统，该车载监控系统包括记录单元1和与记录单元1相互独立的供电单元2，记录单元1与供电单元2通过导线5实现电连接。供电单元2用于向记录单元1供电和控制记录单元1进入休眠模式，可选地，供电单元2检测车辆的电源输出接口的通电状态，当供电单元2检测到车辆的电源输出接口断电时，供电单元2控制记录单元1进入休眠模式，并利用自身存储的电能单独地为记录单元1供电。当供电单元2检测到车辆的电源输出接口通电时，供电单元2停止利用自身存储的电能向记录单元1供电。
可选地，车载监控系统还包括转换单元3，供电单元2通过转换单元3与车辆的电源输出接口电连接。由于供电单元2的工作电压可能与车辆的电源输出接口电压不匹配，因此需要通过转换单元3变压。如果车辆的电源输出接口电压与供电单元2的工作电压相匹配，例如电源输出接口为USB接口时，供电单元2也可以无需通过转换单元3，直接与车辆的电源输出接口电连接。
可选地，车载监控系统还包括定位单元4，该定位单元4独立于记录单元1，且通过导线5分别与记录单元1和供电单元2电连接。可选地，供电单元2通过导线5的前段与定位单元4相连，使定位单元4获得电能，同时电能及休眠信号经过定位单元4，又通过导线5的后段传向记录单元1。定位单元4产生的定位信号也通过导线5的后段传送至记录单元1。这样，仅需一根导线，即可实现上述各部件的连接，产品集成度高。定位单元4的表面可以设有粘接件，便于将定位单元4固定于车内。
可选地，车载监控系统还包括遥控单元6，该遥控单元6用于控制记录单元1执行抓拍动作。可选地，遥控单元6与记录单元1之间采用2.4G无线通信技 术进行通信，遥控单元6向记录单元1发射无线信号，记录单元1接收该信号而执行抓拍动作。在其他实施例中，遥控单元6与记录单元1之间也采用蓝牙技术进行通信。
可选地，车载监控系统还包括与记录单元1相连的底座7，记录单元1通过底座7固定于车内。可选地，记录单元1可旋转地连接于底座7，便于使用者调整记录单元1的拍摄角度。
参见图2，图2示出了记录单元1的立体分解图。
记录单元1包括围成收容腔的外壳11、盖设于外壳11的上盖12，以及收容于收容腔内的主控板13、电源板14、摄像头15和电容器16等执行机构。主控板13与电源板14相互电连接，摄像头15和电容器16分别同时与主控板13和电源板14电连接。主控板13负责数据收集、运算及指令输出，控制各执行机构执行相应的操作；电源板14为主控板13和其他执行机构提供电源。电源板14上设有第一USB接口140，上盖12开设有开口120。导线5通过开口120接入第一USB接口140，从而向记录单元1供电及传送数据。记录单元1还包括与主控板13相连的存储器，该存储器可存储摄像头15拍摄的图像。在本实施例中，主控板13与电源板14平行设置，并通过排针相互连接，电容器16位于主控板13与电源板14之间，记录单元1内部结构紧凑。记录单元1通电时，电源板14对电容器16充电；断电时，电容器16释放电能，确保记录的数据正常保存到存储器。
外壳11的两侧分别设有若干散热孔110，收容腔内还设有与主控板13电连接的静音风扇18。静音风扇18靠近其中一侧的散热孔110，将外部的空气从该侧吸入收容腔，空气流经收容腔后从另一侧的散热孔110排出，可达到加快散热的效果。
收容腔内还设有分别与主控板13电连接且远离静音风扇18的麦克风19。麦克风19靠近摄像头15，在摄像头15拍摄图像的同时采集声音。
收容腔内还可以设有提示元件，例如指示灯或扬声器，用于显示或语音提示记录单元1的使用状态。由于摄像头15用于拍摄车辆外部，而提示元件用于 向车辆内的使用者显示记录单元1的状态，因此，指示灯和扬声器均远离摄像头15设置。
继续参见图2，图2还示出了底座7的立体分解图。
底座7包括中空的支架71以及分别位于支架71两端的固定部72和连接部73。底座7通过固定部72固定于车辆的安装面，例如汽车的挡风玻璃上，并通过连接部73与记录单元1的上盖12相连。连接部73包括旋转部731以及位于旋转部731底部的铁片732，旋转部73通过旋转部731与支架71旋转连接。记录单元1的上盖12中心处设有磁铁121，磁铁121与铁片732相吸，使底座7的连接部73通过磁力与记录单元1相连。本实施例中，底座7与记录单元1通过磁铁实现磁吸式连接，记录单元1可相对底座7实现的360°旋转。底座7与记录单元1之间的连接方式可以采用磁吸式连接以外的方式，只要能实现记录单元1相对于底座7的旋转固定即可。
支架71上设有开口向外的夹持部711，利用夹持部711夹紧导线5，一方面可避免导线5因过长显得凌乱，另一方面可确保导线5与记录单元1稳固连接，不易因不慎拉扯导线5，导致记录单元1与电源的连接断开。
参见图3，图3为图2所示的记录单元1及底座7的另一个视角的立体分解图。
固定部72包括吸盘721、自吸盘721中心位置垂直于吸盘平面向支架71内凸伸的支撑件722、收容该吸盘721和支撑件722的基座723，以及设置于吸盘721和基座723之间的弹簧724。弹簧724套设于支撑件722，且其两端分别与吸盘721和基座723相抵。支撑件722远离吸盘721的一端设有螺栓，支架71上还设有卡扣件712，该卡扣件712与基座723相抵，并通过螺栓与支撑件722旋转连接。当使用者向卡扣件712施力时，卡扣件712推动基座723，使基座723压向吸盘721，吸盘721与安装面的空气排出，使得吸盘721稳固吸附于安装面。
参见图4，图4示出了供电单元2的内部结构图，图中还示出了转换单元3。
供电单元2包括围成腔体的壳体21、盖设于壳体21的盖体22、收容于腔 体的电路板23和与电路板23电连接的充电电池24。本实施例中，转换单元3通过螺栓固定于壳体21的一端，并与电路板23电连接，转换单元3在保证电路接通的同时，可相对于壳体21做一定角度的旋转，方便使用者在将转换单元3插入点烟器时调整供电单元2的位置。本实施例中，车辆的电源输出接口为点烟器，转换单元3为车充头。
供电单元2的远离转换单元3的一端设有与电路板23电连接的第二USB接口26，导线5接入第二USB接口26。电路板24上设有充电电路及升压电路，转换单元3从车辆的电源输出接口取电，通过充电电路对充电电池24充电，充电电池24的电经过升压电路处理，从第二USB接口26输出给记录单元1或其他设备使用。第二USB接口26的个数可根据需要调整，在本实施例中，第二USB接口26的个数为两个，供电单元2除了向记录单元1供电，同时还可以为其他车载设备供电。
供电单元2还包括按键27。尽管供电单元2被设置为通电即自动开启进行充电，且开启后，在断电时自动进行放电而非关闭，使用者仍可通过按键27手动控制供电单元2开启或关闭。供电单元2还可以包括指示灯，使用者可通过指示灯知悉供电单元2当前的工作状态。
参见图5，图5为遥控单元6的内部结构图。本实施例中，遥控单元6为无线按钮，其包括微处理器61、按键62、无线射频芯片63和锂电池64。其中，按键62设置于微处理器61上方，锂电池64设置于微处理器61下方，锂电池64持续向微处理器61供电。当使用者按下按键62时，微处理器61控制无线射频芯片63发出无线信号，记录单元1拍摄照片；当使用者停止对按键62施力时，无线射频芯片63停止发射无线电信号，记录单元1恢复正常工作模式。在其他实施例中，遥控单元6可以采用按钮以外的形式，只要是能够在使用者的触碰下触发发射无线信号的器件即可。
本申请实施例的车载监控系统既实现了对车辆的全天候监控，又避免了车载电子设备直接从车辆电瓶取电而可能造成的隐患，且安装简便，自动化程度高，功能多样，便于使用，又较有趣味性。
参见图6，图6为另一个实施例中的车载监控系统的结构示意图。
在本实施例中，车载监控系统包括相互电连接的记录单元10000和供电单元20000。其中，记录单元100包括镜头模块101、记录单元控制模块102、碰撞感应模块103以及记录单元输入接口104。供电单元200包括车辆状态检测模块201、供电单元控制模块202、休眠信号发送模块203、以及供电单元输出接口204。记录单元输入接口104与供电单元输出接口204相连。
可选地，记录单元控制模块102分别与镜头模块101、碰撞感应模块103以及记录单元输入接口电连接；供电单元控制模块202分别与车辆状态夹持模块201、休眠信号发送模块203以及供电单元输出接口204电连接。
车辆状态检测模块201用于检测车辆的电源输出接口的通电状态。本实施例中，车辆的电源输出接口为点烟器，供电单元200需通过转换单元3与点烟器电连接。由于车辆在行驶时，点烟器通电，会输出12V电压，车辆状态检测模块201可以检测到点烟器处输出电压；而车辆熄火后，点烟器断电，车辆状态检测模块201可以检测到点烟器处电压为零。利用这个原理，当车辆状态检测模块201检测到车辆的电源输出接口断电时，供电单元控制模块202判断车辆处于停车熄火状态，并控制休眠信号发送模块203发出休眠信号。记录单元100接收供电单元200发出的休眠信号后，进入休眠模式，该模式下，除了碰撞感应模块103维持正常工作，记录单元100内其他模块均关闭，供电单元200利用自身存储的电能为碰撞感应模块103供电。
在本实施例中，供电单元200还包括充电电池、充电模块206和放电模块207。当车辆的电源输出接口通电时，充电模块206对充电电池进行充电，此时放电模块207关闭，记录单元100只利用车辆的电源输出接口供给的电能进行工作，电源输出接口的电能通过供电单元输出接口204向记录单元100供电。当车辆的电源输出接口断电时，充电模块206停止对充电电池充电，放电模块207开启，将充电电池的电能通过供电单元输出接口204供给记录单元100。
在本实施例中，碰撞感应模块103为重力感应芯片，其芯片内部集成有重力加速度传感器，用于检测记录单元100在X/Y/Z轴方向上的加速度。当加在 记录单元100的X/Y/Z轴的任何一个方向上的加速度超过预设的碰撞阀值，碰撞感应模块103就会向记录单元控制模块102发出一个异常信号，记录单元控制模块102根据该异常信号判断车辆受到碰撞，控制镜头模块101启动进行紧急录像。记录单元控制模块102控制镜头模块101工作一段预设的紧急录像时间后，关闭镜头模块101，将该段紧急录像时间内录得的视频影像保存，而后记录单元100重新进入休眠模式。本实施例中，紧急录像时间为20秒。
通过利用供电单元200判断车辆状态，并在车辆停车熄火时发出休眠信号使记录单元100进入休眠模式，以及利用碰撞感应模块103在感测到车辆受到碰撞时唤醒记录单元100进行紧急录像，可以耗电较少地实现停车监控，避免了车载电子设备直接从车辆电瓶取电而可能造成的隐患。
当记录单元100处于休眠模式时，若此时车主上车开锁，车辆的电源输出接口已上电，但车辆未发动，车辆状态检测模块201会检测到车辆的电源输出接口通电。车辆状态检测模块201检测到车辆的电源输出接口通电的瞬间，供电单元控制模块202会控制供电单元输出接口204断电，供电单元200不再向记录单元100供电，车辆的电源输出接口的电能也无法通过供电单元输出接口204共给记录单元100，因此记录单元100会进入关机模式。关机模式下，记录单元100内的所有模块，包括碰撞感应模块103，都会关闭。供电单元输出接口204断电一段预设的时间后，供电单元输出接口204在供电单元控制模块202的控制下重新通电，记录单元100重新开机。由于此时转换单元3与车辆的电源输出接口之间通电，休眠信号发送模块203不会发出休眠信号，记录单元100内所有模块正常工作。供电单元输出接口204断电的时间从车辆状态检测模块201检测到车辆的电源输出接口通电的瞬间起算，在本实施例中，该断电时间为7.5秒。
由于车主打开车门的动作会被碰撞感应模块103感测到，导致记录单元控制模块102误判车辆受到碰撞，启动镜头单元101进行紧急录像，从而保存了无用的视频影像。把供电单元200设置为在向记录单元100供电时，一旦检测到车辆的电源输出接口通电，就马上停止对记录单元100供电，同时截断车辆 的电源输出接口对记录单元100的供电，可以使记录单元100在完成紧急录像前即关闭，不会保存过多无用录像。
此外，由于车辆点火启动时，车内的电需供给发动机，此时点烟器将短暂断电。为避免供电单元200误判车辆熄火，可设定一段不检测车辆的电源输出接口通电状态的屏蔽时间，即在休眠模式下，供电单元200一旦检测到车辆的电源输出接口通电，则一段时间内不再检测车辆的电源输出接口是否通电。经过一段屏蔽时间后，供电单元200再次检测车辆的电源输出接口是否通电，如此时车辆的电源输出接口通电，则供电单元200不对记录单元100发出信号；如此时车辆的电源输出接口断电，则供电单元200向记录单元100发出休眠信号，记录单元100再次进入休眠模式。
当车辆的电源输出接口持续通电，即车辆处于正常行驶状态时，记录单元100中所有模块，包括碰撞感应模块103，正常工作。此时，如果车辆发生碰撞，碰撞感应模块103也能感测到加在记录单元100的X/Y/Z轴的任何一个方向上的加速度超过预设的碰撞阀值，并向记录单元控制模块102发出异常信号，使记录单元控制模块102控制镜头模块101进行紧急录像。
在本实施例中，记录单元100在休眠模式和正常工作模式下，碰撞感应模块103发出异常信号的碰撞阈值不同。这是因为，车辆静止时和车辆行驶时发生碰撞的烈度不同，如果设定一样的碰撞阙值，将不符合使用者在不同情况下对紧急录像的需求。碰撞感应模块103的碰撞阙值可以由记录单元控制模块102配置。
在本实施例中，记录单元100还包括存储模块105，存储模块105包括用于存储视频影像文件的Micro SD卡(Micro Secure Digital Card)和用于存储启动程序和设置参数的串行外设接口(Serial Peripheral Interface，SPI)闪存(flash)。Micro SD卡和SPI flash均为可擦写的存储器。Micro SD卡包括缓存区和锁存区，镜头模块101正常录得的视频影像存储于缓存区，超过一定时间即会被新的视频影像覆盖，以节省存储空间；镜头模块101紧急录像(包括休眠模式下和正常工作模式下)所录得的视频影像存储于锁存区，锁存区的视频影像不会被覆盖，只能通过格式化Micro SD卡或者取出Micro SD卡连接到使用者的其他终 端上读写的方式删除。
在本实施例中，记录单元100还包括无线通信模块106，记录单元100可通过无线通信模块106与使用者的移动终端设备建立连接并进行数据传输，方便使用者在移动终端查看记录单元100录得的视频影像。
在本实施例中，记录单元100还包括与记录单元控制模块102电连接的温度感应模块107和散热模块，散热模块可以为风扇。当温度感应模块107感测到记录单元100的温度达到预设的温度阈值时，记录单元控制模块102控制风扇启动进行散热。风扇工作一段时间后，记录单元100的温度下降，当温度感应模块107感测到记录单元100的温度低于预设的温度阈值时，记录单元控制模块102控制风扇关闭，不再散热。
本申请中涉及的碰撞强调阙值、温度阙值、紧急录像时间、断电时间以及屏蔽时间等，都可以由使用者根据需求预先设定。
参见图7，在另一个实施例中，车载监控系统包括记录单元300、供电单元400和定位单元500。记录单元300包括记录单元输入接口304，供电单元400包括供电单元输出接口404。定位单元500包括与供电单元输出接口404电连接的定位单元输入接口501、与定位单元输入接口501电连接的定位单元控制模块502、与定位单元控制模块502电连接的定位信号接收模块503、与定位单元控制模块502电连接的定位信号发送模块504，以及分别与定位单元控制模块502和记录单元输入接口304电连接的定位单元输出接口505。
定位单元输入接口501从供电单元输出接口404获得电能，维持定位单元500工作，定位信号接收模块503接收卫星信号，定位单元控制模块502控制定位信号发送模块504发出定位信号，定位信号通过定位单元输出接口505传送至记录单元300。
通过定位单元500，本实施例的车载监控系统可在记录录像的同时对车辆的行驶路径进行记录，补充所记录的信息。此外，由于定位单元500是独立雨记录单元300之外的单元，其定位信号不会受到记录单元300的干扰，因而确保了定位信息的准确。
参见图8，图8为图7所示的实施例中的车载监控系统的接口连接示意图，图中分别示出了供电单元输出接口404、记录单元输入接口304，以及定位单元控制模块502。
供电单元输出接口404的VCC端与记录单元输入接口304的VCC端相连，供电单元输出接口404的接地端与记录单元输入接口304的接地端相连，第一输出接口的D+端和D-端均连至第二输入接口的ID端。当车辆的电源输出接口通电时，D-端输出低电平，记录单元300正常工作；当车辆的电源输出接口断电时，D+端输出一个500毫秒的高电平脉冲，记录单元300通过记录单元输入接口304接收该脉冲，进入休眠模式。
定位单元控制模块502的VCC端与供电单元输出接口404的VCC端相连，定位单元控制模块502的接地端与供电单元输出接口404的接地端相连。定位单元控制模块502的TX端与记录单元输入接口304的D-端相连，用于向记录单元300传送卫星信号。记录单元输入接口304的D+端与定位单元控制模块502的ON/0FF端相连，用于控制定位单元500的工作状态：当记录单元300正常工作时，记录单元输入接口304的D+端为高电平，定位单元500正常工作；当记录单元300处于休眠模式时，记录单元输入接口304的D+端为低电平，定位单元500关闭。
通过这样的连接方式，本申请的车载监控系统能够只通过一条导线，就实现以下功能：
1、供电单元400同时对记录单元300和定位单元500供电；
2、供电单元400向记录单元300发送信号触发记录单元300改变工作模式；
3、定位单元500向记录单元300发送定位信号；及
4、记录单元300控制定位单元500开启和关闭。
因此，本申请的定位监控系统集成度高，便于使用，且在休眠模式下自动关闭无需使用的单元或模块，能够有效省电。
参见图9，在另一个实施例中，车载监控系统包括记录单元600、供电单元700和遥控单元800。记录单元600包括用于与遥控单元800进行无线通信的无 线信号接收模块609、与无线信号接收模块609电连接的记录单元控制模块602，以及与记录单元控制模块602电连接的镜头模块601和存储模块608。
遥控单元800包括无线控制模块801、与无线控制模块801电连接的按键802、与无线控制模块801电连接并向无线控制模块801供电的锂电池803，以及与无线控制模块801电连接的用于发出无线信号的无线信号发射模块804。
可选地，当使用者按下按键802，无线控制模块801控制无线信号发射模块804向记录单元600发出无线信号。记录单元600的无线信号接收模块609接收无线信号后，记录单元控制模块602控制镜头模块601拍摄照片，并将拍得的照片保存于存储模块608的锁存区，不会被镜头模块601正常拍摄的视频影像文件覆盖。
遥控单元800的存在，能让使用者在开车时一键拍照，无需分心，即可拍下旅途风光，增加了记录单元600的使用方式，提高了趣味性。
在本申请所提供的几个实施例中，应该理解到，所揭露的系统，装置和方法，可以通过其它的方式实现。以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另一方面，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。
本申请实施例提供的车载监控系统，利用供电单元检测车辆的电源输出接口是否通电，在车辆的电源输出接口未通电时控制记录单元进入休眠模式，并利用自身存储的电能向记录单元供电，维持碰撞感应模块工作，保证在出现异常时唤醒记录单元进行录像，使车辆在停车熄火时无需使用车辆自身的电瓶为记录单元供电，亦能达到停车监控的效果。
工业实用性
本申请实施例通过采用上述技术方案，可以实现对车辆的全天候监控，避免车载电子设备直接从车辆电瓶取电而可能造成的隐患。

Claims (21)

  1. 一种车载监控系统，其包括记录单元和与所述记录单元相互独立的供电单元，所述供电单元设置为向所述记录单元供电和控制所述记录单元进入休眠模式。
  2. 根据权利要求1所述的车载监控系统，其中，所述供电单元还设置为检测车辆的电源输出接口的通电状态。
  3. 根据权利要求2所述的车载监控系统，还包括转换单元，所述供电单元设置为通过所述转换单元与车辆的电源输出接口电连接。
  4. 根据权利要求3所述的车载监控系统，其中，所述车辆的电源输出接口为点烟器或通用串行总线USB接口。
  5. 根据权利要求2所述的车载监控系统，其中，所述供电单元是设置为以如下方式向所述记录单元供电和控制所述记录单元进入休眠模式：当检测到车辆的电源输出接口断电时，控制所述记录单元进入休眠模式，并利用自身存储的电能单独地为所述记录单元供电。
  6. 根据权利要求5所述的车载监控系统，其中，所述供电单元还设置为当检测到车辆的电源输出接口通电时，所述供电单元停止利用自身存储的电能向所述记录单元供电。
  7. 根据权利要求6所述的车载监控系统，其中，所述记录单元设置为在所述供电单元从检测到车辆的电源输出接口通电的瞬间至达到第一预设时间之前，处于关机模式。
  8. 根据权利要求7所述的车载监控系统，其中，所述记录单元还设置为在所述供电单元从检测到车辆的电源输出接口通电的瞬间至达到预设时间后，利用车辆的电源输出接口输出的电能进行工作。
  9. 根据权利要求6所述的车载监控系统，其中，所述供电单元还设置为从检测到车辆的电源输出接口通电的瞬间至达到预设时间之前，停止检测车辆的电源输出接口的通电状态。
  10. 根据权利要求1所述的车载监控系统，还包括定位单元，所述定位单 元独立于所述记录单元，且通过导线分别与所述记录单元和所述供电单元电连接。
  11. 根据权利要求10所述的车载监控系统，其中，所述供电单元是设置为以如下方式向所述记录单元供电和控制所述记录单元进入休眠模式：通过导线向所述记录单元传输电能，通过所述定位单元向所述记录单元传输控制信号；所述定位单元设置为通过导线将自身产生的定位信号传送至所述记录单元。
  12. 根据权利要求1所述的车载监控系统，还包括遥控单元，所述遥控单元设置为控制所述记录单元执行抓拍动作。
  13. 根据权利要求12所述的车载监控系统，其中，所述遥控单元是设置为通过发射无线信号的方式控制所述记录单元执行抓拍动作。
  14. 根据权利要求1所述的车载监控系统，还包括与所述记录单元相连的底座，所述记录单元通过所述底座固定于车内，所述记录单元与所述底座通过磁吸方式连接，所述底座包括吸盘和盖设于吸盘的支架，所述支架包括设置于支架表面的卡扣件和收容于支架内的支撑件，所述支撑件分别与所述卡扣件和所述吸盘相连，所述支架上设有开口向外的夹持部。
  15. 根据权利要求1至14中任意一项所述的车载监控系统，其中，所述记录单元包括镜头模块、记录单元控制模块、无线通信模块、碰撞感应模块、温度感应模块以及散热模块。
  16. 根据权利要求15所述的车载监控系统，其中，所述车载监控系统设置为通过所述无线通信模块与移动终端设备进行数据传输。
  17. 根据权利要求15所述的车载监控系统，其中，所述记录单元设置为在所述记录单元处于休眠模式的情况下，当所述碰撞感应模块感测到车辆异常震动时，执行录像工作。
  18. 根据权利要求15所述的车载监控系统，其中，所述记录单元设置为在所述记录单元正常工作的情况下，当所述碰撞感应模块感测到车辆碰撞时，执行录像动作。
  19. 根据权利要求15所述的车载监控系统，其中，所述记录单元设置为当 所述温度感应模块感测到所述记录单元的温度达到预设的温度阈值时，控制所述散热模块启动工作。
  20. 根据权利要求15所述的车载监控系统，其中，所述供电单元包括：
    车辆状态检测模块，设置为检测车辆的电源输出接口的通电状态；及
    休眠信号发送模块，设置为当所述车辆状态检测模块检测到车辆的电源输出接口断电时，向所述记录单元发出休眠信号。
  21. 根据权利要求20所述车载监控系统，其中，所述碰撞感应模块设置为在所述记录单元接收所述休眠信号后，继续工作，所述记录单元中除所述碰撞感应模块之外的其他模块设置为在所述记录单元接收所述休眠信号后，停止工作。
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