Vehicle ignition detection method and device
A detection method and detection device technology, applied in the field of vehicles, can solve the problems of low accuracy, susceptibility to interference, false alarms, etc., and achieve the effect of improving accuracy and saving equipment costs
Inactive Publication Date: 2019-04-12
SHENZHEN CASTEL WIRELESS TELECOMM
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Problems solved by technology
[0005] The main purpose of the present invention is to provide a vehicle ignition detection method and device, aiming to solve the existing technical problems of detecting vehicle vibration and judging that the vehicle ignition is susceptible to interference, often resulting in false alarms and low accuracy
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[0039] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0040] The main solution of the embodiment of the present invention is: detect the current voltage value of the vehicle OBD interface; judge whether the detected current voltage value is greater than the previous detected voltage value; When the voltage value is , it is determined that the vehicle is ignited.
[0041] Such as figure 1 as shown, figure 1 It is a schematic diagram of the device structure of the hardware operating environment involved in the solution of the embodiment of the present invention.
[0042] The device in the embodiment of the present invention can be a vehicle, or a control device or an ignition detection device of a vehicle, such as figure 1 Said vehicle or vehicle control device or vehicle ignition detection device includes a processor 1001 such as a CPU, a network interface 1004 , a use...
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The invention discloses a vehicle ignition detection method. The method comprises the following steps of: detecting a current voltage value of an OBD interface of a vehicle; judging whether the detected current voltage value is greater than a voltage value detected at the last time; and when the detected current voltage value is greater than the voltage value detected at the last time, judging that the vehicle is ignited. The invention furthermore discloses a vehicle ignition device. According to the method, the current voltage value of the OBD interface of the vehicle is detected; judgement is carried out to determine whether the detected voltage value is greater than the voltage value detected at the last time or not; when the vehicle is ignited, forward voltage hop is generated at the moment of ignition, and only when ignition is carried out, the voltage of the OBD interface is changed, so that when the current voltage value of the OBD interface is greater than the voltage value detected at the last time, more correct judgement can be carried out to determine whether the vehicle is ignited or not, thereby improving the vehicle ignition judging correctness; and moreover, a voltage detection manner is adopted to judge vehicle ignition, so that the setting of a vibration sensor can be saved and then the equipment cost is saved.
Description
technical field [0001] The invention relates to the technical field of vehicles, in particular to a vehicle ignition detection method and device. Background technique [0002] At present, vehicles are basically equipped with OBD interface. The OBD interface provides battery voltage. For electronic after-installation equipment, the original line power interface of the vehicle can not be damaged, which is convenient for installation. However, the OBD interface can also supply power to the equipment after the vehicle is turned off. If the equipment cannot Entering into sleep mode will consume the battery power all the time. In severe cases, the vehicle may not be able to ignite. Therefore, the existing vehicle is equipped with a device to cut off the power supply to other equipment, so that after the vehicle is turned off, other equipment will enter a sleep state to prevent the battery power from being consumed all the time. In this way, when the vehicle is re-ignited, it is ne...
Claims
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IPC IPC(8): G01R31/00
CPCG01R31/006
Inventor 元光七李宏雷
Owner SHENZHEN CASTEL WIRELESS TELECOMM