Vehicle-mounted monitoring circuit with delayed power-off function

Abstract

The utility model discloses a vehicle-mounted monitoring circuit with a delayed power-off function. The vehicle-mounted monitoring circuit comprises an electricity storage circuit, an on-off control circuit, a central processing circuit, a timer, a vehicle state detection circuit and a remote communication circuit, the input end of the power storage circuit is electrically connected with a vehicle-mounted power supply, the output end of the power storage circuit is electrically connected with the vehicle-mounted monitoring equipment and the central processing circuit through the on-off control circuit, and the power storage circuit can supply power to the vehicle-mounted monitoring equipment and the central processing circuit; the central processing circuit is electrically connected with the timer, the vehicle state detection circuit, the on-off control circuit and the remote communication circuit. According to the utility model, when the vehicle is in a flameout state, the power storage circuit is used for supplying power to the vehicle-mounted monitoring equipment, the remote communication circuit is used for sending emergency information to a user or an emergency contact person, the capacity of the vehicle-mounted power supply is not consumed, and the endurance mileage of the new energy vehicle is not consumed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to vehicle-mounted power supply technical field relates to a monitoring circuit, specifically relates to a vehicle-mounted monitoring circuit with time delay power off function. BACKGROUND

[0002] With the increasing number of cars, the vehicles running on the road are also increasing, and some people's traffic safety consciousness is weak, speeding, drunk driving, not driving according to the provisions of the road and other behaviors lead to traffic accidents, at this time, effective video monitoring data can be well analyzed by the traffic police to analyze the cause of the traffic accident, and the person causing the accident can be punished.

[0003] In the prior art, the power supply of the vehicle-mounted device is mostly supplied by the automobile storage battery, and when the vehicle is turned off or the power supply is abnormally disconnected, the vehicle-mounted video monitoring device will not continue to work.

[0004] Although the existing new energy vehicle can start the parking monitoring setting through the system, the power battery will continuously charge the storage battery through the discharging system, and the storage battery discharging system will continuously supply power to the video monitoring device. When the alarm state is triggered, the video data is automatically maintained, and the user alarm information is transmitted to the user through the network.

[0005] However, the technology of supplying power to the video monitoring device through the storage battery combined with the charging and discharging system has the following problems:

[0006] First, this technology is only applicable to new energy vehicles, and fuel vehicles cannot charge the storage battery in the off state.

[0007] Second, this technology will cause additional power consumption of the power battery, which will affect the remaining mileage of the vehicle.

[0008] Third, this technology will automatically shut down when the power battery is low, which may cause the loss of critical monitoring data.

[0009] Fourth, when the vehicle power supply system fails, such as storage battery failure, storage battery wire harness falling off caused by traffic accident, video monitoring power supply line failure, this technology will not support the work of the video monitoring device. UTILITY MODEL CONTENT

[0010] In order to solve the above technical problems, the utility model provides a vehicle-mounted monitoring circuit with time delay power off function.

[0011] In order to achieve the above purpose, the technical scheme of the utility model is as follows:

[0012] The utility model discloses a vehicle-mounted monitoring circuit with time delay power off function, which comprises an electricity storage circuit, an on-off control circuit, a central processing circuit, a timer, a vehicle state detection circuit and a remote communication circuit.

[0013] The input end of the power storage circuit is electrically connected with the vehicle power supply, and the output end of the power storage circuit is electrically connected with the vehicle monitoring device and the central processing circuit through the on-off control circuit, and the power storage circuit can supply power to the vehicle monitoring device and the central processing circuit;

[0014] The central processing circuit is electrically connected with the timer, the vehicle state detection circuit, the on-off control circuit and the remote communication circuit;

[0015] The timer is used for controlling the time of the delay;

[0016] The vehicle state detection circuit is used for detecting the vibration amplitude of the vehicle;

[0017] The on-off control circuit is used for controlling the on-off of the circuit between the power storage circuit and the vehicle monitoring device;

[0018] The remote communication circuit is used for sending emergency information to the user or the emergency contact person when the vehicle is in an abnormal state;

[0019] The central processing circuit is used for judging whether the vehicle is in a normal state or an abnormal state according to the detection result of the vehicle state detection circuit, and controlling the on-off of the on-off control circuit based on the delay time of the timer, and realizing the power supply of the power storage circuit to the vehicle monitoring device in the abnormal state of the vehicle, and controlling the remote communication circuit to send the emergency information to the user or the emergency contact person.

[0020] On the basis of the above technical scheme, the following improvements can be made:

[0021] As a preferred scheme, the central processing circuit comprises a central processor and a threshold comparator electrically connected with the central processor;

[0022] The central processor is electrically connected with the timer, the vehicle state detection circuit, the on-off control circuit and the remote communication circuit;

[0023] The threshold comparator is used for comparing the detection result of the vehicle state detection circuit with an amplitude threshold value, and judging whether the vehicle is in a normal state or an abnormal state.

[0024] As a preferred scheme, the central processing circuit further comprises a threshold generation circuit, the threshold generation circuit is electrically connected with the central processor, and the threshold generation circuit is used for generating a corresponding amplitude threshold value according to any one of the starting state, the just-off state and the off state of the vehicle.

[0025] As a preferred scheme, the vehicle monitoring circuit further comprises a voltage stabilizing circuit, the output end of the power storage circuit is electrically connected with the vehicle monitoring device through the on-off control circuit and the voltage stabilizing circuit in sequence, and the voltage stabilizing circuit is used for adjusting the voltage output by the power storage circuit to a required voltage for the vehicle monitoring device, and then delivering the voltage to the vehicle monitoring device.

[0026] As a preferred scheme, the power storage circuit comprises a super capacitor.

[0027] As a preferred scheme, the vehicle state detection circuit comprises an acceleration sensor.

[0028] As a preferred scheme, the remote communication circuit comprises a 5G module or a 4G module.

[0029] As a preferred scheme, the vehicle-mounted monitoring device comprises a video monitoring host, a camera and a storage device.

[0030] The utility model discloses a vehicle-mounted monitoring circuit with delay power-off function, which has the following beneficial effects:

[0031] First, the utility model can provide power supply to the vehicle-mounted monitoring device by using the power storage circuit in the vehicle off state, and send emergency information to the user or emergency contact person by using the remote communication circuit, without consuming the capacity of the vehicle-mounted power supply and the endurance mileage of the new energy vehicle.

[0032] Second, the utility model can provide power supply to the video monitoring device in the case of sudden power failure of the vehicle, such as damage of the vehicle-mounted power supply and damage of the vehicle power supply system. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 The utility model provides a vehicle-mounted monitoring circuit's circuit diagram.

[0035] Among them: 1-power storage circuit, 2-on-off control circuit, 3-central processing circuit, 4-timer, 5-vehicle state detection circuit, 6-remote communication circuit, 7-vehicle-mounted power supply, 8-vehicle-mounted monitoring device, 9-voltage stabilizing circuit. DETAILED DESCRIPTION

[0036] The preferred embodiments of the utility model will be described in detail below with reference to the drawings.

[0037] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] The expression of "including" element is an "open" expression, which only means that the corresponding component exists, and should not be interpreted as excluding additional components.

[0039] In order to achieve the purpose of the present application, some embodiments of the vehicle-mounted monitoring circuit with time delay power-off function, the vehicle-mounted monitoring circuit comprises: a power storage circuit 1, a on-off control circuit 2, a central processing circuit 3, a timer 4, a vehicle state detection circuit 5 and a remote communication circuit 6.

[0040] The input end of the power storage circuit 1 is electrically connected with the vehicle-mounted power supply 7, the output end of the power storage circuit 1 is electrically connected with the vehicle-mounted monitoring device 8 and the central processing circuit 3 through the on-off control circuit 2, and the power storage circuit 1 can supply power to the vehicle-mounted monitoring device 8 and the central processing circuit 3;

[0041] The central processing circuit 3 is electrically connected with the timer 4, the vehicle state detection circuit 5, the on-off control circuit 2 and the remote communication circuit 6 respectively;

[0042] The timer 4 is used for controlling the time of the time delay;

[0043] The vehicle state detection circuit 5 is used for detecting the vibration amplitude of the vehicle;

[0044] The on-off control circuit 2 is used for controlling the on-off of the circuit between the power storage circuit 1 and the vehicle-mounted monitoring device 8;

[0045] The remote communication circuit 6 is used for sending emergency information to the user or the emergency contact person when the vehicle is in an abnormal state;

[0046] The central processing circuit 3 is used for judging whether the vehicle is in a normal state or an abnormal state according to the detection result of the vehicle state detection circuit 5, and controlling the on-off of the on-off control circuit 2 based on the time delay of the timer 4, and realizing that the power storage circuit 1 supplies power to the vehicle-mounted monitoring device 8 in the abnormal state of the vehicle, and controlling the remote communication circuit 6 to send emergency information to the user or the emergency contact person.

[0047] The above-mentioned vehicle-mounted power supply 7 can be a car main power supply, including a vehicle normal power supply and a vehicle normal working power supply. The above-mentioned power storage circuit 1 can include a super capacitor.

[0048] The above-mentioned vehicle state detection circuit 5 can include an acceleration sensor.

[0049] The remote communication circuit 6 is a network communication device, and specifically comprises a 5G module or a 4G module.

[0050] The vehicle-mounted monitoring device 8 is a video monitoring device, and is used for monitoring and recording the environment around the vehicle, and specifically comprises a video monitoring host, a camera and a storage device.

[0051] In order to further optimize the implementation effect of the utility model, in some other embodiments, the remaining features are the same in technology, and the difference lies in that the central processing circuit 3 comprises a central processor and a threshold comparator which is electrically connected with the central processor.

[0052] The central processor is electrically connected with the timer 4, the vehicle state detection circuit 5, the on-off control circuit 2 and the remote communication circuit 6 respectively.

[0053] The threshold comparator is used for comparing the detection result of the vehicle state detection circuit 5 with an amplitude threshold value, and judging whether the vehicle is in a normal state or an abnormal state.

[0054] Further, the central processing circuit 3 further comprises a threshold generation circuit, the threshold generation circuit is electrically connected with the central processor, and the threshold generation circuit is used for generating a corresponding amplitude threshold value according to any one of the starting state, the just-off state and the post-off state of the vehicle.

[0055] The amplitude threshold value is a collision detection threshold value, which is used for judging whether the output result amplitude of the vehicle state detection circuit 5 (such as an acceleration sensor) is abnormal, and the threshold values set under different working conditions are not the same.

[0056] The utility model adds the threshold generation circuit, when the vehicle is in the starting state and the just-off state, the generated amplitude threshold value is higher, and false positives caused by door opening, rapid acceleration and rapid deceleration and the like are avoided, when the vehicle is in the post-off state, the generated amplitude threshold value is lower, and false negatives caused by slight collision of the vehicle and the like are avoided.

[0057] In order to further optimize the implementation effect of the utility model, in some other embodiments, the remaining features are the same in technology, and the difference lies in that the vehicle-mounted monitoring circuit further comprises a voltage stabilizing circuit 9, the output end of the power storage circuit 1 is electrically connected with the vehicle-mounted monitoring device 8 through the on-off control circuit 2 and the voltage stabilizing circuit 9 in sequence, and the voltage stabilizing circuit 9 is used for adjusting the voltage output by the power storage circuit 1 to a required voltage for use of the vehicle-mounted monitoring device 8, and then delivering the voltage to the vehicle-mounted monitoring device 8.

[0058] The working process of the vehicle-mounted monitoring circuit with the time delay power-off function is as follows:

[0059] When the vehicle is normally started, the vehicle power supply 7 outputs power to the storage circuit 1, the storage circuit 1 outputs to the on-off control circuit 2, at this time the vehicle state detection circuit 5 sends the detection result to the central processing circuit 3, the central processing circuit 3 judges that it does not exceed the amplitude threshold, the vehicle is in the normal starting state, and the on-off control circuit 2 is in the connected state, and the storage circuit 1 supplies power to the vehicle monitoring device 8 through the on-off control circuit 2 and the voltage stabilizing circuit 9.

[0060] When the vehicle is switched from the normal starting state to the off state, the vehicle power supply 7 no longer outputs power to the storage circuit 1, and the vehicle state detection circuit 5 sends the detection result to the central processing circuit 3, the central processing circuit 3 judges that it does not exceed the amplitude threshold, the vehicle is in the normal off state, at this time the central processing circuit 3 controls the timer 4 to start timing, and the on-off control circuit 2 is in the connected state, and the storage circuit 1 supplies power to the vehicle monitoring device 8 through the on-off control circuit 2 and the voltage stabilizing circuit 9; when the timing is over, the timer 4 sends a signal to the central processing circuit 3, the central processing circuit 3 makes the on-off control circuit 2 in the disconnected state, and the storage circuit 1 no longer supplies power to the vehicle monitoring device 8, and the vehicle monitoring device 8 is shut down.

[0061] When the vehicle is normally off, the central processing circuit 3 makes the on-off control circuit 2 in the disconnected state. If the vehicle has abnormal vibration (such as collision, theft, etc.), the vehicle state detection circuit 5 sends the detection result to the central processing circuit 3, the central processing circuit 3 judges that it exceeds the amplitude threshold, the vehicle is in the abnormal state, at this time the central processing circuit 3 controls the remote communication circuit 6 to send an emergency message to the user or the emergency contact person, and controls the timer 4 to start timing, and makes the on-off control circuit 2 in the connected state, and the storage circuit 1 supplies power to the vehicle monitoring device 8 through the on-off control circuit 2 and the voltage stabilizing circuit 9;

[0062] When the timing is over, the timer 4 sends a signal to the central processing circuit 3,

[0063] If the central processing circuit 3 judges that the vehicle is still in the abnormal state within the timing period, the central processing circuit 3 controls the timer 4 to re-time;

[0064] If the central processing circuit 3 judges that the vehicle is in the normal state within the timing period, the central processing circuit 3 makes the on-off control circuit 2 in the disconnected state, and the storage circuit 1 no longer supplies power to the vehicle monitoring device 8, and the vehicle monitoring device 8 is shut down.

[0065] When the vehicle is in traffic accident, the vehicle power supply 7 outputs power to the storage circuit 1, the storage circuit 1 outputs to the on-off control circuit 2, at this time, the vehicle state detection circuit 5 sends the detection result to the central processing circuit 3, the central processing circuit 3 judges that the amplitude threshold is exceeded, the vehicle is in an abnormal state (traffic accident state), the central processing circuit 3 controls the remote communication circuit 6 to send an emergency message to the user or the emergency contact person, and simultaneously controls the timer 4 to start timing, so that the on-off control circuit 2 is in the connected state, and the storage circuit 1 supplies power to the vehicle monitoring device 8 through the on-off control circuit 2 and the voltage stabilizing circuit 9;

[0066] When the timing is over, the timer 4 sends a signal to the central processing circuit 3,

[0067] If the vehicle power supply 7 continues to charge the storage circuit 1 within the timing period, the central processing circuit 3 judges that the vehicle is still in an abnormal state, and the central processing circuit 3 controls the timer 4 to re-time;

[0068] If the vehicle power supply 7 does not charge the storage circuit 1 within the timing period, the central processing circuit 3 judges that the vehicle is in a normal state, the central processing circuit 3 makes the on-off control circuit 2 in the off state, and the storage circuit 1 does not supply power to the vehicle monitoring device 8, and the vehicle monitoring device 8 is powered off.

[0069] When the vehicle power supply 7 does not charge the storage circuit 1 due to power failure after the vehicle is in traffic accident, and the central processing circuit 3 judges that it is power failure, the central processing circuit 3 controls the remote communication circuit 6 to send an emergency message to the user or the emergency contact person, makes the on-off control circuit 2 in the connected state, and the storage circuit 1 continuously supplies power to the vehicle monitoring device 8 through the on-off control circuit 2 and the voltage stabilizing circuit 9 until the power of the storage circuit 1 is consumed.

[0070] The utility model discloses a vehicle monitoring circuit with delay power off function has the following beneficial effects:

[0071] First, the utility model can provide power supply to the vehicle monitoring device 8 in the vehicle off state by the storage circuit 1, and send an emergency message to the user or the emergency contact person by the remote communication circuit 6, and the capacity of the vehicle power supply 7 is not consumed, and the endurance mileage of the new energy vehicle is not consumed.

[0072] Second, the utility model can still provide power supply to the video monitoring device in the case that the vehicle power supply 7 is damaged and the vehicle power supply system is damaged.

[0073] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and the person skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and equivalents thereof.

[0074] The control mode of the utility model is controlled by manually starting and closing the switch, and the wiring diagram of the power element and the provision of the power supply are common knowledge in the art, and the utility model is mainly used for protecting the mechanical device, so the control mode and the wiring arrangement of the utility model will not be explained in detail.

Claims

1. A vehicle-mounted monitoring circuit with time-delay power-off function, characterized in that, The application relates to a vehicle monitoring device and a vehicle monitoring method. The vehicle monitoring device comprises a storage circuit, an on-off control circuit, a central processing circuit, a timer, a vehicle state detection circuit and a remote communication circuit. The input end of the storage circuit is electrically connected with a vehicle-mounted power supply, the output end of the storage circuit is electrically connected with a vehicle-mounted monitoring device and the central processing circuit through the on-off control circuit, and the storage circuit can supply power to the vehicle-mounted monitoring device and the central processing circuit. The central processing circuit is electrically connected with the timer, the vehicle state detection circuit, the on-off control circuit and the remote communication circuit. The timer is used for controlling the time delay. The vehicle state detection circuit is used for detecting the vibration amplitude of the vehicle. The on-off control circuit is used for controlling the on-off of the circuit between the storage circuit and the vehicle-mounted monitoring device. The remote communication circuit is used for sending emergency information to a user or an emergency contact person when the vehicle is in an abnormal state. The central processing circuit is used for judging whether the vehicle is in a normal state or an abnormal state according to the detection result of the vehicle state detection circuit, controlling the on-off of the on-off control circuit based on the time delay of the timer, and realizing the power supply of the storage circuit to the vehicle-mounted monitoring device, controlling the remote communication circuit to send emergency information to the user or the emergency contact person when the vehicle is in the abnormal state.

2. The in-vehicle monitoring circuit according to claim 1, characterized by The central processing circuit comprises a central processor and a threshold comparator which is electrically connected with the central processor. The central processor is electrically connected with the timer, the vehicle state detection circuit, the on-off control circuit and the remote communication circuit. The threshold comparator is used for comparing the detection result of the vehicle state detection circuit with an amplitude threshold value, and judging whether the vehicle is in a normal state or an abnormal state.

3. The vehicle-mounted monitoring circuit according to claim 2, characterized by The central processing circuit further comprises a threshold generation circuit which is electrically connected with the central processor, and the threshold generation circuit is used for generating a corresponding amplitude threshold value according to any one of the starting state, the just-off state and the off state of the vehicle.

4. The on-board monitoring circuit according to any one of claims 1 to 3, characterized in that The vehicle-mounted monitoring circuit further comprises a voltage stabilizing circuit, the output end of the storage circuit is electrically connected with the vehicle-mounted monitoring device through the on-off control circuit and the voltage stabilizing circuit in sequence, and the voltage stabilizing circuit is used for adjusting the voltage output by the storage circuit to a required voltage of the vehicle-mounted monitoring device and then transmitting the voltage to the vehicle-mounted monitoring device.

5. The on-board monitoring circuit according to any one of claims 1 to 3, characterized in that, The storage circuit comprises a super capacitor.

6. The on-board monitoring circuit according to any one of claims 1 to 3, characterized in that The vehicle state detection circuit comprises an acceleration sensor.

7. The on-board monitoring circuit according to any one of claims 1 to 3, characterized in that, The remote communication circuit comprises a 5G module or a 4G module.

8. The on-board monitoring circuit according to any one of claims 1 to 3, characterized in that, The vehicle-mounted monitoring device comprises a video monitoring host, a camera and a storage device.

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