阅读说明：本技术 一种基于摄像模组的车辆燃油防盗预警方法、系统及车辆 (Vehicle fuel oil anti-theft early warning method and system based on camera module and vehicle ) 是由 黎伟 于 2020-04-29 设计创作，主要内容包括：本发明涉及防盗技术领域,提供一种基于摄像模组的车辆燃油防盗预警方法、系统及车辆,以TOF摄像模组为核心,建立车辆油箱监控坐标系和监控感兴趣区域,并获取监控感兴趣区域中目标物体的坐标信息,构建第一～第五预设预警条件作为预警门槛,从而简单、快速地确定是否有人手或盗窃工具在油箱上进行非法动作,进一步地实现了有效报警并提高了报警准确率,防止了车辆油箱或油箱内燃油被盗,保障了用户的私有财产安全；采用价格相对较为优惠的TOF摄像模组作为数据获取、处理核心,实现了对车辆油箱当前状态的实时监控,并通过构建特定算法确定其是否处于异常状态,提高了对车辆油箱防盗预警的准确率与灵敏度,大幅度地降低了产品的生产成本。(The invention relates to the technical field of theft prevention, and provides a vehicle fuel oil anti-theft early warning method and system based on a camera module and a vehicle.A TOF camera module is taken as a core, a vehicle oil tank monitoring coordinate system and a monitoring interesting area are established, coordinate information of a target object in the monitoring interesting area is obtained, and first to fifth preset early warning conditions are established as early warning thresholds, so that whether a human hand or a theft tool performs illegal action on an oil tank is simply and quickly determined, effective alarm is further realized, the alarm accuracy is improved, the fuel oil in the vehicle oil tank or the oil tank is prevented from being stolen, and the private property safety of a user is ensured; the TOF camera module with relatively low price is used as a data acquisition and processing core, so that the current state of the vehicle oil tank is monitored in real time, whether the vehicle oil tank is in an abnormal state or not is determined by constructing a specific algorithm, the accuracy and the sensitivity of anti-theft early warning of the vehicle oil tank are improved, and the production cost of products is greatly reduced.)

1. The utility model provides a vehicle fuel theftproof early warning method based on module of making a video recording which characterized in that includes:

establishing a monitoring coordinate system based on a camera module, wherein the camera module is arranged right above one surface of a vehicle oil tank;

marking a monitoring region of interest in the monitoring coordinate system;

and alarming when a target object meeting preset early warning conditions appears in the monitored region of interest.

2. The vehicle fuel anti-theft early warning method based on the camera module as claimed in claim 1, characterized in that:

the camera module is arranged on the top surface S of the oil tank_ADMNJust above, at a distance from the top surface S of the oil tank_ADMNH, A, D, M, N are the tank top surface S_ADMNFour sequential angles of (d);

the monitoring coordinate system takes the center of the camera module as an original point O and is parallel to the top surface S of the oil tank_ADMNWidth L of_ANIs an X axis and is parallel to the top surface S of the oil tank_ADMNLength L of_MNThe side is Y-axis to be vertical to the top surface S of the oil tank_ADMNCenter point O₁Is the Z-axis.

3. The vehicle fuel anti-theft early warning method based on the camera module as claimed in claim 2, characterized in that: the monitoring region of interest is V_O-ADMN。

4. The vehicle fuel anti-theft early warning method based on the camera module as claimed in claim 3, wherein the preset early warning conditions comprise first to fourth preset early warning conditions;

the first preset early warning condition is that x when the target object is in the monitoring region of interest_i>0、z_i>And in the region 0, the following conditions are satisfied:

wherein θ is a plane S_OADAnd the top surface S of the oil tank_ADMNL1 and L2 are the top surface S of the oil tank respectively_ADMNLength L of_MNAnd width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the second preset early warning condition is that when the target object is in the x in the monitoring region of interest_i<0，z_i>And in the region 0, the following conditions are satisfied:

wherein α is a plane S_OMNAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the third preset early warning condition is that when the target object is in the y in the monitoring interest area_i>0，z_i>And in the region 0, the following conditions are satisfied:

wherein β is a plane S_ODMAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the fourth preset early warning condition is that when the target object is in the y in the monitoring interest area_i<0，z_i>And in the region 0, the following conditions are satisfied:

wherein σ is a plane S_OANAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) Are coordinate values of the target object.

5. The vehicle fuel anti-theft early warning method based on the camera module as claimed in claim 4, characterized in that:

the preset early warning conditions further comprise a fifth preset early warning condition, wherein the fifth preset early warning condition is that the state duration of the target object is longer than the preset warning time of the system;

the alarming when the target object meeting the preset early warning condition appears in the monitored region of interest comprises the following steps: and alarming when a target object meeting one of the first to fourth preset early warning conditions and meeting a fifth preset early warning condition appears in the monitored region of interest.

6. The utility model provides a vehicle fuel theftproof early warning system based on module of making a video recording which characterized in that: the system comprises a camera module, an operation module and an early warning module which are sequentially connected; the camera module is arranged right above one surface of a vehicle oil tank;

the camera module is used for acquiring image information and depth information of a target object when the target object appears in a monitoring region of interest;

the operation module is used for establishing a monitoring coordinate system by taking the camera module as a center, marking a monitoring interesting region in the monitoring coordinate system, judging whether the target object meets a preset early warning condition according to the image information and the depth information, and if so, sending an alarm signal to the early warning module;

the early warning module is used for responding to the warning signal to give an alarm.

7. The vehicle fuel anti-theft early warning system based on the camera module as claimed in claim 6, characterized in that: the camera module is a TOF camera module and is arranged right above the top surface of the oil tank; the TOF camera module comprises a camera shooting assembly and a distance measuring assembly.

8. The vehicle fuel anti-theft early warning system based on the camera module as claimed in claim 6, characterized in that: the camera module is arranged on the top surface S of the oil tank_ADMNJust above, at a distance from the top surface S of the oil tank_ADMNH, A, D, M, N are the tank top surface S_ADMNFour sequential angles of (d); the monitoring coordinate system takes the center of the camera module as an original point O and is parallel to the top surface S of the oil tank_ADMNWidth L of_ANIs an X axis and is parallel to the top surface S of the oil tank_ADMNLength L of_MNThe side is Y-axis to be vertical to the top surface S of the oil tank_ADMNCenter point O₁The vertical direction of the Z axis is the Z axis; the monitoring region of interest is V_O-ADMN；

The operation module is provided with the preset early warning conditions, and the preset early warning conditions comprise first to fourth preset early warning conditions:

the first preset early warning condition is that x when the target object is in the monitoring region of interest_i>0，z_i>And in the region 0, the following conditions are satisfied:

wherein θ is a plane S_OADAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the second preset early warning condition is that when the target object is in the x in the monitoring region of interest_i<0，z_i>And in the region 0, the following conditions are satisfied:

wherein α is a plane S_OMNAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the third preset early warning condition is that when the target object is in the y in the monitoring interest area_i>0，z_i>And in the region 0, the following conditions are satisfied:

wherein β is a plane S_ODMAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the fourth preset early warning condition is that when the target object is in the y in the monitoring interest area_i<0，z_i>And in the region 0, the following conditions are satisfied:

wherein σ is a plane S_OANAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNIs longDegree L_MNAnd a width L_AN；(x_i、y_i、z_i) Are coordinate values of the target object.

9. The vehicle fuel anti-theft early warning system based on the camera module as claimed in claim 8, characterized in that: and a fifth preset early warning condition is also set in the operation module, wherein the fifth preset early warning condition is that the state duration of the target object is longer than the preset warning time of the system.

10. The vehicle fuel anti-theft early warning system based on the camera module group as claimed in any one of claims 6 to 9, characterized in that: the early warning module comprises an audible and visual alarm and a remote communication module which are respectively used for on-site alarm and remote alarm.

11. A vehicle, characterized in that: the vehicle fuel anti-theft early warning system based on the camera module at least comprises the vehicle fuel anti-theft early warning system based on the camera module as claimed in any one of claims 6 to 10, or operates the vehicle fuel anti-theft early warning method based on the camera module as claimed in any one of claims 1 to 5.

Technical Field

The invention relates to the technical field of automotive electronics, in particular to a vehicle fuel anti-theft early warning method and system based on a camera module and a vehicle.

Background

In recent years, fuel oil stealing events of large trucks and long-distance trucks are frequent. Compared with the small vehicles, the vehicles have large oil tank capacity, and the oil tank cover are exposed and arranged outside, so the vehicles are more prone to being stolen. When a driver of the truck stops for a rest or the driver is not on the truck, a lawless person pries the fuel tank cover or breaks the fuel tank to steal the fuel in the fuel tank. Because the cab where the driver has a rest is a certain distance away from the oil tank, when the driver leaves the vehicle due to reasons, if fuel oil is stolen, the driver is difficult to immediately notice, the subsequent driving of the driver is influenced, and the property safety of the majority of truck drivers is damaged.

At present, the fuel oil anti-theft schemes of the commercial large truck mainly comprise the following three types:

1) infrared induction type: the living body is detected through infrared rays, so that the purpose of triggering alarm is achieved, although the sensitivity is high, the defects are obvious, the influence of the environment and the temperature is large, and the accuracy is low;

2) vibration induction type: the vibration sensor is used for detecting abnormal vibration of a static vehicle, and alarming is triggered by the vibration, but the vibration sensor detects the vibration of the vehicle, so that when a driver acts on the vehicle greatly, the phenomenon that the fuel tank is stolen by mistake is easily caused, and an alarm is sounded, so that the rest of the driver is influenced;

3) microwave detection type: the method is characterized in that the vibration sensor is used for triggering alarm by vibration, the microwave is used for detecting the living body, if the living body (a thief) is detected, the vibration sensor is started, the vibration is triggered again, and the alarm is triggered.

In conclusion, the existing single infrared induction or vibration induction fuel oil anti-theft scheme cannot effectively screen out interference components due to poor anti-interference performance, so that the alarm accuracy of equipment is reduced; the microwave detection combining the vibration and the microwave can greatly improve the detection accuracy of the equipment, but the price is too high to be popularized in a large scale. Namely, the existing fuel oil anti-theft scheme cannot be compatible between the cost and the equipment detection accuracy.

Disclosure of Invention

The invention provides a vehicle fuel oil anti-theft early warning method and system based on a camera module and a vehicle, and solves the technical problem that the detection accuracy and the manufacturing cost of the existing vehicle fuel oil tank anti-theft method cannot be coordinated and compatible.

In order to solve the technical problems, the invention provides a vehicle fuel anti-theft early warning method based on a camera module, which comprises the following steps:

establishing a monitoring coordinate system based on a camera module, wherein the camera module is arranged right above one surface of a vehicle oil tank;

marking a monitoring region of interest in the monitoring coordinate system;

and alarming when a target object meeting preset early warning conditions appears in the monitored region of interest.

The camera module is arranged on the top surface S of the oil tank_ADMNJust above, at a distance from the top surface S of the oil tank_ADMNH, A, D, M, N are the tank top surface S_ADMNFour sequential angles of (d);

the monitoring coordinate system takes the center of the camera module as an original point O and is parallel to the top surface S of the oil tank_ADMNWidth L of_ANIs an X axis and is parallel to the top surface S of the oil tank_ADMNLength L of_MNThe side is Y-axis to be vertical to the top surface S of the oil tank_ADMNCenter point O₁Is the Z-axis.

The monitoring region of interest is V_O-ADMN。

The preset early warning conditions comprise first to fourth preset early warning conditions:

the first preset early warning condition is that x when the target object is in the monitoring region of interest_i＞0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein θ is a plane S_OADAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the second preset early warning condition is that when the target object is in the x in the monitoring region of interest_i＜0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein α is a plane S_OMNAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the third preset early warning condition is that when the target object is in the y in the monitoring interest area_i＞0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein β is a plane S_ODMAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the fourth preset early warning condition is that when the target object is in the y in the monitoring interest area_i＜0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein σ is a plane S_OANAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) Are coordinate values of the target object.

The preset early warning conditions further comprise a fifth preset early warning condition, wherein the fifth preset early warning condition is that the state duration of the target object is longer than the preset warning time of the system;

the method comprises the following steps of alarming when a target object meeting preset early warning conditions appears in the monitored region of interest, specifically:

and alarming when a target object meeting one of the first to fourth preset early warning conditions and meeting a fifth preset early warning condition appears in the monitored region of interest.

Preferably, the camera module is a TOF camera module with a built-in camera module and a built-in distance measuring module.

Corresponding to the vehicle fuel anti-theft early warning method based on the camera module, the invention also provides a vehicle fuel anti-theft early warning system based on the camera module, which comprises the camera module, an operation module and an early warning module which are sequentially connected; the camera module is arranged right above one surface of a vehicle oil tank;

the camera module is used for establishing a monitoring coordinate system by taking the camera module as a center and marking a monitoring interesting area in the monitoring coordinate system; the monitoring system is also used for acquiring image information and depth information of a target object when the target object appears in the monitoring interesting area;

the operation module is used for judging whether the target object meets preset early warning conditions according to the image information and the depth information, and if so, an alarm signal is sent to the early warning module;

the early warning module is used for responding to the warning signal to give an alarm.

The camera module is a TOF camera module and is arranged right above the top surface of the oil tank; the TOF camera module comprises a camera shooting assembly and a distance measuring assembly.

The camera module is arranged on the top surface S of the oil tank_ADMNJust above, at a distance from the top surface S of the oil tank_ADMNH, A, D, M, N are the tank top surface S_ADMNFour sequential angles of (d);

the monitoring coordinate system takes the center of the camera module as an original point O and is parallel to the top surface S of the oil tank_ADMNWidth L of_ANIs an X axis and is parallel to the top surface S of the oil tank_ADMNLength L of_MNThe side is Y-axis to be vertical to the top surface S of the oil tank_ADMNCenter point O₁The vertical direction of the Z axis is the Z axis;

the monitoring region of interest is V_O-ADMN；

The operation module is provided with the preset early warning conditions, and the preset early warning conditions comprise first to fourth preset early warning conditions:

the first preset early warning condition is that when the target object is in the X in the monitoring region of interest_i＞0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein θ is a plane S_OADAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the second preset early warning condition is that when the target object is in the x in the monitoring region of interest_i＜0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein α is a plane S_OMNAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the third preset early warning condition is that when the target object is in the y in the monitoring interest area_i＞0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein β is a plane S_ODMAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) The coordinate value of the target object;

the fourth preset early warning condition is that when the target object is in the y in the monitoring interest area_i＜0，z_iAnd when the area is more than 0, the following conditions are satisfied:

wherein σ is a plane S_OANAnd the top surface S of the oil tank_ADMNL1 and L2 are respectively the top surface S of the oil tank_ADMNLength L of_MNAnd a width L_AN；(x_i、y_i、z_i) Are coordinate values of the target object.

The early warning module comprises an audible and visual alarm and a remote communication module which are respectively used for on-site alarm and remote alarm.

The invention also provides a vehicle, which comprises the vehicle fuel anti-theft early warning system based on the camera module, or runs the vehicle fuel anti-theft early warning method based on the camera module.

The invention provides a vehicle fuel oil anti-theft early warning method, a vehicle fuel oil anti-theft early warning system and a vehicle based on a camera module, wherein a TOF camera module is taken as a core, a vehicle fuel tank monitoring coordinate system and a monitoring interesting area are established, coordinate information of a target object in the monitoring interesting area is obtained, and first to fifth preset early warning conditions are established to be used as early warning threshold comparison coordinate information, so that whether the target object invades the interesting area or not is simply and quickly determined (for example, whether a person carries out illegal action on the fuel tank by hands or a theft tool or not is determined), effective alarm is further realized, the alarm accuracy is improved, fuel oil in the vehicle fuel tank or the fuel tank is prevented from being stolen, and the private property safety of a. The invention adopts the TOF camera module with relatively low price as a data acquisition and processing core, realizes the real-time monitoring of the current state of the vehicle oil tank, and determines whether the vehicle oil tank is in an abnormal state or not by constructing a specific algorithm, thereby improving the accuracy and the sensitivity of the anti-theft early warning of the vehicle oil tank and greatly reducing the production cost of products.

Drawings

Fig. 1 is a schematic view of a vehicle fuel anti-theft early warning method and system based on a camera module and a vehicle fuel anti-theft model of a vehicle according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the monitoring coordinate system of FIG. 1 provided by an embodiment of the present invention;

FIG. 3 is a flowchart illustrating a vehicle fuel anti-theft warning method based on a camera module according to an embodiment of the present invention;

FIG. 4 is a connection diagram of a vehicle fuel anti-theft warning system based on a camera module according to an embodiment of the present invention;

FIG. 5 shows a plane S according to an embodiment of the present invention_OADAnd the top surface S of the oil tank_ADMNSchematic diagram of the included angle theta;

wherein: the system comprises a vehicle 01, a vehicle oil tank 02, a vehicle-mounted control end 03, a camera module 1, an operation module 2 and an early warning module 3.

Detailed Description

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, which are given solely for the purpose of illustration and are not to be construed as limitations of the invention, including the drawings which are incorporated herein by reference and for illustration only and are not to be construed as limitations of the invention, since many variations thereof are possible without departing from the spirit and scope of the invention.