CN113160437A

CN113160437A - OBU (on-Board Unit) equipment and anti-disassembly detection method and device thereof

Info

Publication number: CN113160437A
Application number: CN202110285098.XA
Authority: CN
Inventors: 王强; 郭琦杰
Original assignee: Shenzhen Chenggu Software Co ltd
Current assignee: Shenzhen Chenggu Technology Co ltd
Priority date: 2021-03-17
Filing date: 2021-03-17
Publication date: 2021-07-23

Abstract

The application belongs to the field of ECT and provides OBU equipment and an anti-disassembly detection method and device thereof, wherein the method comprises the following steps: when the OBU equipment is in an activated state, acquiring a first included angle between the OBU equipment and a horizontal plane according to a preset trigger rule; determining the number of times that the first included angle continuously belongs to a preset inclination angle threshold range; and when the accumulated times are greater than a preset time threshold value, controlling the OBU equipment to enter a failure state. Therefore, the OBU device can be effectively detected to be in a state of not normally installing through the detection of the inclination angle of the OBU device, and the possibility of vehicle fee evasion and fee omission is reduced.

Description

OBU (on-Board Unit) equipment and anti-disassembly detection method and device thereof

Technical Field

The application belongs to the ETC field, and particularly relates to an OBU device and an anti-disassembly detection method and device thereof.

Background

The OBU device (hereinafter, referred to as On board Unit, and referred to as onboard Unit) refers to a microwave device that communicates with the RSU (hereinafter, referred to as Road Side Unit, and referred to as Road Side Unit) by using DSRC (hereinafter, referred to as Dedicated Short Range Communication, and referred to as Dedicated Short Range Communication). In ETC (Electronic Toll Collection, chinese) an OBU device is placed on a vehicle, and an RSU is installed on a roadside. When the vehicle passes through the RSU at high speed, the OBU equipment and the RSU are in microwave communication.

In order to ensure the ETC traffic effect, the OBU equipment is required to be installed on a windshield in front of a vehicle. In order to avoid fee evasion or deduction caused by the fact that a user moves the OBU equipment, the anti-dismantling column is usually pressed down to enable the OBU equipment to be fixed on a windshield and to be activated, when the OBU equipment is dismantled, the anti-dismantling column bounces open, and the OBU equipment triggers an anti-dismantling failure mechanism. However, since the current internet activation is common, if the OBU device is not fixed on the windshield, the anti-removal column is pressed down by using a sticker or other objects and then normally activated, so that the OBU device can be moved randomly, and the vehicle fee evasion or fee omission may occur.

Disclosure of Invention

In view of this, the present disclosure provides an OBU device, and a method and an apparatus for detecting detachment prevention thereof, so as to solve the problem in the prior art that if the OBU device is not fixed on a windshield, the OBU device may move arbitrarily, and a fee evasion or a fee omission may occur.

A first aspect of an embodiment of the present application provides a method for detecting detachment prevention of an OBU device, where the method includes:

when the OBU equipment is in an activated state, acquiring a first included angle between the OBU equipment and a horizontal plane according to a preset trigger rule;

determining the number of times that the first included angle continuously belongs to a preset inclination angle threshold range;

and when the accumulated times are greater than a preset time threshold value, controlling the OBU equipment to enter a failure state.

With reference to the first aspect, in a first possible implementation manner of the first aspect, according to a preset trigger rule, acquiring a first included angle between the OBU device and a horizontal plane includes:

when a vehicle passes through the ETC portal frame, a first included angle between the OBU equipment and the horizontal plane is obtained;

or after the vehicle is detected to enter the highway, acquiring a first included angle between the OBU equipment and the horizontal plane according to a preset first acquisition cycle.

With reference to the first aspect, in a second possible implementation manner of the first aspect, before determining that the first included angle continuously belongs to a cumulative number of times of a preset inclination threshold range, the method further includes:

determining a first inclination angle of the front surface of the OBU device when the front surface is horizontally placed and/or a second inclination angle of the back surface of the OBU device when the back surface is horizontally placed;

and carrying out angle compensation according to the first inclination angle and/or the second inclination angle, and obtaining the inclination angle threshold range according to the compensated angle.

With reference to the second possible implementation manner of the first aspect, in a third possible implementation manner of the first aspect, the tilt angle threshold range includes one or more angle ranges determined according to a model of a vehicle to which the OBU device is installed.

With reference to the first aspect, the first possible implementation manner of the first aspect, the second possible implementation manner of the first aspect, or the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, before determining that the first included angle continuously belongs to an accumulated number of times of a preset inclination threshold range, the method further includes:

acquiring a road surface inclination angle of the vehicle in running;

and carrying out angle compensation according to the road surface inclination angle, and correcting the inclination angle threshold range.

With reference to the first aspect, in a fifth possible implementation manner of the first aspect, the determining a cumulative number of times that the first included angle continuously belongs to a preset inclination threshold range includes:

collecting included angles between a plurality of OBU devices and a horizontal plane in a preset time period after the first included angle is detected to belong to a preset inclination angle threshold range;

and determining whether the first included angle has errors or not according to the change information of the plurality of acquired included angles.

With reference to the first aspect, in a sixth possible implementation manner of the first aspect, after the accumulated number of times is greater than a predetermined number threshold, the method further includes:

and sending the first included angle and/or the accumulated times to an ETC portal frame so as to interrupt data interaction between the portal frame and OBU equipment.

A second aspect of the embodiments of the present application provides an anti-detachment detection apparatus for an OBU device, the apparatus including:

the device comprises a first included angle acquisition unit, a second included angle acquisition unit and a control unit, wherein the first included angle acquisition unit is used for acquiring a first included angle between the OBU equipment and a horizontal plane according to a preset trigger rule when the OBU equipment is in an activated state;

the accumulated frequency determining unit is used for determining the accumulated frequency that the first included angle continuously belongs to a preset inclination angle threshold range;

and the failure control unit is used for controlling the OBU equipment to enter a failure state when the accumulated times is greater than a preset time threshold.

A third aspect of embodiments of the present application provides an OBU device, comprising a memory, a processor and a computer program stored in the memory and executable on the processor, the processor implementing the steps of the method according to any one of the first aspect when executing the computer program.

A fourth aspect of embodiments of the present application provides a computer-readable storage medium, which stores a computer program, wherein the computer program, when executed by a processor, implements the steps of the method according to any one of the first aspect.

Compared with the prior art, the embodiment of the application has the advantages that: when the OBU equipment is in an activated state, detecting a first included angle between the OBU equipment and a horizontal plane according to a preset trigger rule, determining the accumulation times of continuously detecting that the first included angle is in an inclination angle threshold range of abnormal installation, and if the accumulation times is greater than a preset time threshold, controlling the OBU equipment to enter a failure state, so that the inclination angle of the OBU equipment can be detected, the state that the OBU equipment is not normally installed is effectively detected, and the possibility of vehicle fee evasion and fee omission is reduced.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic flow chart of an implementation of a detachment prevention detection method for an OBU device according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of an OBU device provided in an embodiment of the present application;

fig. 3 is a schematic view of an anti-detachment detection device of an OBU apparatus according to an embodiment of the present disclosure;

fig. 4 is a schematic diagram of an OBU device provided in an embodiment of the present application.

Detailed Description

In the following description, for purposes of explanation and not limitation, specific details are set forth, such as particular system structures, techniques, etc. in order to provide a thorough understanding of the embodiments of the present application. It will be apparent, however, to one skilled in the art that the present application may be practiced in other embodiments that depart from these specific details. In other instances, detailed descriptions of well-known systems, devices, circuits, and methods are omitted so as not to obscure the description of the present application with unnecessary detail.

In order to explain the technical solution described in the present application, the following description will be given by way of specific examples.

When the OBU equipment is activated by the vehicle, in order to improve the convenience of use of the OBU equipment, the OBU equipment can be activated by the user in an online activation mode. Namely, after the user installs and fixes the OBU equipment on the windshield in front of the automobile through the anti-dismantling column, the OBU equipment is activated. After the activation is accomplished, if the OBU equipment is pulled down to the user, prevent tearing open the post and can kick-open by oneself, the OBU equipment is detecting to prevent tearing open the post bullet and is opened the back, through the OBU equipment prevent tearing open failure mechanism, this OBU equipment of definition became invalid.

The OBU equipment is activated on line, so that the OBU equipment does not need to be installed and activated at a professional installation site, and the convenience in use is provided for users. However, due to the lack of supervision of the online activation method, the OBU device may also have a use hole. For example, when a user activates an OBU device online, if the user does not fix the OBU device at the front windshield of a car but presses down through a sticker or other article anti-detaching column, the OBU device can be moved at will, and if the OBU device is placed in a screen window for shielding, the car may be charged for escaping or charging for losing.

In order to overcome the above problem, an embodiment of the present application provides a method for detecting detachment prevention of an OBU device, as shown in fig. 1, the method includes:

in S101, when the OBU device is in an activated state, a first included angle between the OBU device and a horizontal plane is obtained according to a preset trigger rule.

Specifically, the OBU device described in this embodiment may be an OBU device having an online activation function. Of course, the OBU device is not limited to this, and may also be an OBU device without an online activation function.

Fig. 2 is a schematic structural diagram of an OBU device according to an embodiment of the present disclosure, where the OBU device includes a front surface 1 and a back surface 2. Wherein, the front 1 is provided with a display screen which can display the state data of the OBU equipment, such as fee deduction information, balance information and the like. The reverse side 2 of OBU equipment can set up solar panel, obtains the electric energy through solar panel, can charge for the battery of OBU equipment, improves the convenience that the OBU equipment used. When the OBU equipment is installed, one side with the solar panel is attached to the windshield in front of the automobile. Wherein, the plane of the solar cell panel at the back is parallel with the front, angle collection system can with the front and the back level setting of OBU equipment. Of course, the front and back of the OBU device may also be non-parallel in possible implementations.

In the embodiment of the present application, the preset trigger rule for acquiring the first included angle may include multiple types. For example, the trigger rule may be triggered by a wake-up signal sent by an RSU provided on the ETC portal when the vehicle passes through the ETC portal. The wake-up signal may be a predetermined frequency. For example, when a vehicle passes through the ETC portal, the OBU equipment receives a wake-up signal with the frequency of 5.8GHz sent by the RSU arranged on the ETC portal, and triggers the OBU equipment to acquire the first included angle.

Because OBU equipment is battery powered's low-power consumption product, after the awakening signal that sends through the ETC portal, trigger angle collection system and carry out the angle collection. For example, the angle acquisition device may be an electronic compass or the like.

In addition, because the ETC portal is generally built in flat position, gather first contained angle when the car passes through the ETC portal, to the influence of first contained angle when can effectual elimination car goes up the downhill path, improve the degree of accuracy that first contained angle was gathered.

In a possible implementation manner, the first included angle may also be acquired according to a predetermined first acquisition cycle, that is, a predetermined time interval, after the vehicle is detected to enter the highway, where the first included angle is between the OBU device and the horizontal plane. The first acquisition period may be any time interval of 5-30 minutes or may not be limited to this time interval.

Wherein detecting whether the vehicle enters the highway may be determined by an OBU device interacting with an RSU provided on the road. Without being limited thereto, in a possible implementation, whether the vehicle enters the expressway may also be determined by means of positioning information or the like.

In S102, the cumulative number of times that the first included angle continuously belongs to the preset inclination threshold range is determined.

In the embodiment of the application, the preset inclination angle threshold range is an angle when the OBU device is not normally installed on a windshield in front of an automobile and is stored in other positions.

In a possible implementation of determining the preset inclination angle threshold range of the OBU device, the angular range of the OBU device installed at the windshield in front of the vehicle, i.e. the angular range of the normal installation, may be obtained, for example, 30 degrees to 90 degrees. And determining the angle out of the angle range as the preset inclination angle threshold range. The angle range of normal installation can also be determined according to the type of the vehicle, and the angle ranges of normal installation corresponding to different vehicles are determined.

Or, in an implementation manner of determining a preset inclination angle threshold range of the OBU device, the preset inclination angle threshold range may be determined according to an inclination angle of the OBU device when the OBU device is placed in a vehicle.

For example, the front and back of the OBU device shown in fig. 1 are parallel planes, and the preset tilt angle threshold range may be determined according to a position where the OBU device is placed. When the OBU equipment is placed in a center console or a copilot storage box, the OBU equipment cannot be erected generally in the driving process of a vehicle due to the designed shape of the OBU equipment, and only can be placed horizontally with the front side or the back side facing upwards. Therefore, the preset inclination angle threshold range can be determined according to the placement position of the OBU device, and for example, the inclination angle threshold range can be 0-20 degrees.

In a possible implementation manner, because the inclination angles of the center consoles of different vehicles are different, preset inclination angle threshold ranges corresponding to different vehicles can be determined according to the types of the vehicles.

The determined inclination angle threshold range may include a plurality of angle intervals. For example, the determined tilt threshold range may include an angular range less than A0, A1-B1, A2-B2 …, and so on.

In possible implementations of the present application, the front and back side designs of different OBU devices may differ due to manufacturer variations. For example, there may be situations where the front of the OBU device is not parallel to the opposite. To improve the accuracy of the tilt threshold range, a first tilt angle of the OBU device detected when the front side of the OBU device is placed on the horizontal plane and/or a second tilt angle of the OBU device detected when the back side of the OBU device is placed on the horizontal plane may be predetermined. And performing compensation calculation through the detected first inclination angle and/or second inclination angle, and determining a compensated inclination angle threshold range.

For example, the tilt threshold before compensation ranges from 0 to 20 degrees, the first tilt of the detected OBU device is 5 degrees, and the second tilt of the OBU device is 0 degree. And determining that the inclination angle threshold range of the OUB equipment is 0-25 degrees through compensation calculation, thereby more reliably detecting that the OBU equipment is in an abnormal installation state.

In a possible implementation mode, since the road surface on which the vehicle runs may have an uphill slope or a downhill slope, the variation range of the inclination angle of the abnormally installed OBU device during the uphill slope or the downhill slope may exceed the variation range of the inclination angle of the abnormally installed OBU device during the horizontal road surface running. In order to improve the accuracy of the OBU equipment installation state judgment, the road surface inclination angle of the running vehicle can be obtained, the inclination angle threshold range is compensated according to the road surface inclination angle, and the inclination angle threshold range is corrected.

The road surface inclination angle can be determined by combining the position of the automobile according to the preset corresponding relation between the position and the inclination angle.

For example, the inclination angle threshold range before correction is 0-25 degrees, and the detected current road surface gradient is 2 degrees, then the inclination angle threshold range after correction may be 0-27 degrees.

And in S103, controlling the OBU equipment to enter a failure state when the accumulated times is greater than a preset time threshold.

After the first included angle is collected according to a preset triggering rule, if the determined first included angle belongs to a preset inclination angle threshold range and the number of times of addition continuously in the inclination angle threshold range is larger than a preset number threshold, the OBU equipment can be controlled to enter a failure state and can be used only by being reactivated.

When the accumulated times of the first included angle continuously in the inclination angle threshold range is detected to be less than the preset times threshold value, and the first included angle is detected to be in the angle range of normal installation, the previously detected first included angle is considered to be possibly subjected to false detection, the accumulated times can be cleared, and the detection and the accumulation are carried out again.

In a possible implementation manner, if it is detected that the first included angle is within a preset inclination angle threshold range, included angles between the plurality of OBU devices and a horizontal plane may be collected within a predetermined time period, and whether an error exists in the first included angle is determined according to the collected angle change information of the plurality of included angles.

The predetermined time period may be less than the acquisition period of the first angle or the time interval for acquiring the first angle.

In a possible implementation manner, when the variation amplitude of the plurality of acquired included angles is greater than the preset variation amplitude, the first included angle is considered to have an error, and the accumulated times can be cleared and the acquisition and the accumulated calculation can be performed again.

In a possible implementation manner, the OBU device may further send the detected first included angle and/or the accumulated number of times to the ETC portal, so that the RSU in the ETC system stops interacting with the OBU device. For example, the first angle and/or the accumulated number may be transmitted via a reserved bit in a vehicle service table. The ETC portal stops interacting with the OBU equipment after judging that the OBU equipment enters the failure state.

It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present application.

Fig. 3 is a schematic view of a detachment prevention apparatus of an OBU device according to an embodiment of the present disclosure, and as shown in fig. 3, the apparatus includes:

the first included angle obtaining unit 301 is configured to obtain a first included angle between the OBU device and a horizontal plane according to a preset trigger rule when the OBU device is in an activated state;

an accumulated number determining unit 302, configured to determine an accumulated number of times that the first included angle continuously belongs to a preset inclination threshold range;

and the failure control unit 303 is configured to control the OBU device to enter a failure state when the accumulated number of times is greater than a predetermined number threshold.

The detachment prevention device of the OBU apparatus shown in fig. 3 corresponds to the detachment prevention method of the OBU apparatus shown in fig. 1.

Fig. 4 is a schematic diagram of an OBU device according to an embodiment of the present application. As shown in fig. 4, the OBU device 4 of this embodiment includes: a processor 40, a memory 41 and a computer program 42 stored in said memory 41 and executable on said processor 40, such as a tamper protection program for an OBU device. The steps in the tamper-proof method embodiments of the respective OBU device described above are implemented when the computer program 42 is executed by the processor 40. Alternatively, the processor 40 implements the functions of the modules/units in the above-described device embodiments when executing the computer program 42.

Illustratively, the computer program 42 may be partitioned into one or more modules/units that are stored in the memory 41 and executed by the processor 40 to accomplish the present application. The one or more modules/units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution of the computer program 42 in the OBU device 4.

The OBU device may include, but is not limited to, a processor 40, a memory 41. Those skilled in the art will appreciate that fig. 4 is merely an example of an OBU device 4 and does not constitute a limitation of OBU device 4 and may include more or fewer components than shown, or some components in combination, or different components, e.g., the OBU device may also include input output devices, network access devices, buses, etc.

The Processor 40 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

The memory 41 may be an internal storage unit of the OBU device 4, such as a hard disk or a memory of the OBU device 4. The memory 41 may also be an external storage device of the OBU device 4, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), or the like, provided on the OBU device 4. Further, the memory 41 may also include both an internal memory unit and an external memory device of the OBU device 4. The memory 41 is used for storing the computer program and other programs and data required by the OBU device. The memory 41 may also be used to temporarily store data that has been output or is to be output.

It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.

In the embodiments provided in the present application, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.

The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.

In addition, functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.

The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the processes in the methods of the embodiments described above can be implemented by hardware related to instructions of a computer program, which can be stored in a computer readable storage medium, and when the computer program is executed by a processor, the steps of the methods described above can be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media which may not include electrical carrier signals and telecommunications signals in accordance with legislation and patent practice.

The above-mentioned embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims

1. An anti-disassembly detection method of an OBU device, the method comprising:

2. The method of claim 1, wherein obtaining a first angle between the OBU device and a horizontal plane according to a preset trigger rule comprises:

3. The method of claim 1, wherein prior to determining a cumulative number of times the first included angle continues to fall within a preset dip threshold range, the method further comprises:

4. The method of claim 3, wherein the tilt angle threshold range comprises determining one or more angular ranges based on a model of a vehicle in which the OBU device is installed.

5. The method according to any one of claims 1-4, wherein prior to determining the cumulative number of times the first included angle continues to fall within a preset tilt threshold range, the method further comprises:

acquiring a road surface inclination angle of the vehicle in running;

6. The method of claim 1, wherein determining a cumulative number of times that the first included angle continues to fall within a preset tilt threshold range comprises:

7. The method of claim 1, wherein after the accumulated number of times is greater than a predetermined number threshold, the method further comprises:

8. An anti-disassembly detection device of an OBU apparatus, the device comprising:

9. An OBU device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor realizes the steps of the method according to any of claims 1 to 7 when executing the computer program.

10. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 7.