WO2019223050A1 - 后视镜及后视镜中etc模块的防拆方法 - Google Patents

后视镜及后视镜中etc模块的防拆方法 Download PDF

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Publication number
WO2019223050A1
WO2019223050A1 PCT/CN2018/091613 CN2018091613W WO2019223050A1 WO 2019223050 A1 WO2019223050 A1 WO 2019223050A1 CN 2018091613 W CN2018091613 W CN 2018091613W WO 2019223050 A1 WO2019223050 A1 WO 2019223050A1
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WIPO (PCT)
Prior art keywords
rearview mirror
touch switch
circuit
processing chip
detection circuit
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Application number
PCT/CN2018/091613
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English (en)
French (fr)
Inventor
潘磊
Original Assignee
深圳市歌美迪电子技术发展有限公司
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Publication of WO2019223050A1 publication Critical patent/WO2019223050A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/02—Rear-view mirror arrangements
    • B60R1/04—Rear-view mirror arrangements mounted inside vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
    • B60R2001/1215—Mirror assemblies combined with other articles, e.g. clocks with information displays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
    • B60R2001/1276—Mirror assemblies combined with other articles, e.g. clocks with radio receivers, loud-speakers or buzzers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R1/00—Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
    • B60R1/12—Mirror assemblies combined with other articles, e.g. clocks
    • B60R2001/1284—Mirror assemblies combined with other articles, e.g. clocks with communication systems other than radio-receivers, e.g. keyless entry systems, navigation systems; with anti-collision systems

Definitions

  • the present disclosure relates to the technical field of vehicle equipment, and in particular, to a rearview mirror and a method for preventing disassembly of an ETC module in the rearview mirror.
  • ETC Electronic Toll Collection
  • the ETC module is usually attached to the windshield on the side of the steering wheel of the co-pilot. There is also a module card. On the rearview mirror. In order to prevent the ETC module from being removed for use in other cars, such as large cars and small cars, to avoid expenses, etc., some ETC modules have a tamper-resistant function.
  • the existing anti-removal technology of the rearview mirror ETC module proposes that a tactile switch can be used to achieve the purpose of anti-removal.
  • the existing technology does not properly design the position of the touch switch, so that the ETC module is still easy to be removed and cracked, and after being cracked, it can be used in other vehicles, and does not achieve the desired anti-removal effect.
  • an object of the present disclosure includes providing a rear view mirror.
  • a rearview mirror provided in an embodiment of the present disclosure includes a rearview mirror body and a rearview mirror bracket; the rearview mirror body has an ETC module and a tamper detection circuit built in; the rearview mirror bracket includes a hollow connecting rod and a connecting rod The base connected by the hollow connecting rod; the rearview mirror body is connected to the base through the hollow connecting rod; the base is provided with a touch switch circuit and a protection member, and the protection member covers the touch switch For the rest of the circuit except for the switch contact, the base is fixed to the windshield through a negative plate, and the switch contact is in contact with a side end of the negative plate adjacent to the windshield; The touch switch circuit and the tamper detection circuit are electrically connected through a wire running inside the hollow connecting rod, and the tamper detection circuit is configured to detect a state of the switch contact and control the state according to the state. The working state of the ETC module.
  • the rearview mirror bracket is mounted on the negative film, and the switch contacts are squeezed in.
  • the touch switch circuit and a wire connecting the touch switch circuit and the tamper detection circuit are tightly sandwiched between the windshield, the negative film, and the rearview mirror bracket, so that Hardly disturbed by foreign objects. Therefore, a tighter protection system is formed for the touch switch circuit and the wires, and the tamper resistance performance is improved.
  • a resistor is connected in series to the circuit of the touch switch circuit, and the tamper detection circuit is configured to determine a state of the switch contact by detecting a voltage of the resistor.
  • the voltage of the resistor can determine the state of the switch contact, so the touch switch circuit can convert the state of the switch contact into an electrical signal and transmit it to the tamper detection circuit, thereby controlling the ETC module Working state, effectively achieve the purpose of anti-demolition.
  • the base is further provided with a hardware matching circuit in parallel with the touch switch circuit, the tamper detection circuit is electrically connected to the hardware matching circuit through the wire, and the tamper detection circuit is further configured to The working state of the ETC module is controlled by detecting a signal of the hardware matching loop.
  • the hardware matching loop includes at least one device, and a signal of the device senses a state change when a removal action is performed, and the tamper detection circuit is configured to control a working state of the ETC module according to a state of the signal.
  • the hardware matching circuit is equivalent to a tamper circuit that can achieve the same tamper resistance function as the touch switch circuit, and can also control the working state of the ETC module. Therefore, the hardware matching circuit increases the tamper resistance .
  • a side of the protective member in contact with the backsheet is inclined, and is configured to closely contact the side surface of the backsheet.
  • the side of the protection member that is in contact with the backsheet is disposed obliquely to prevent someone from reaching into the backsheet from the upper part of the base to press the touch switch to a certain extent.
  • the rearview mirror body includes a front case, a rear case, and a processing chip.
  • a lens connected to the processing chip is mounted on the rear case, and the processing chip is configured to receive an image acquired by the lens, and Controlling the image to be displayed on a display device connected to the processing chip.
  • the display device includes a display screen embedded in the front case, the display screen is connected to the processing chip, and the processing chip controls the image to be displayed on the display screen.
  • the lens can record the running state of the vehicle, so that the rearview mirror has the function of a driving recorder.
  • the rearview mirror body further includes a light guide plate and a chip holder, the processing chip is disposed on the chip holder, the light guide plate is located between the chip holder and the display screen, and the processing chip
  • An LED (Light-Emitting Diode, light-emitting diode) lamp is also provided on the light guide. Light emitted by the LED lamp passes through the light guide plate, and a preset mark on the light guide plate is displayed on the display screen.
  • the processing chip is connected to a speaker, and the speaker is configured to output prompt information.
  • the horn can prompt the user with relevant information when performing related operations.
  • a key is provided on the front case, and the key is connected to the processing chip, and the processing chip is configured to receive a key operation through the key and control an output volume of the speaker according to the key operation.
  • the user can conveniently control the volume of the speaker, so that the volume of the speaker can be adjusted according to the specific environment, thereby meeting the different needs of different users.
  • front case and the rear case are detachably fixedly connected.
  • wire is wrapped and provided with a wire protection sleeve.
  • the protection member includes a PCB (Printed Circuit Board) cover.
  • the method for preventing disassembly of an ETC module in a rear-view mirror is configured to improve the anti-disassembly performance of the ETC module in the above-mentioned rear-view mirror, and includes the following steps:
  • Step 501 Detect a touch switch in the touch switch circuit.
  • the tamper detection detection circuit controls the ETC module to not work to achieve the purpose of tamper resistance.
  • the touch switch When detecting the touch switch in the touch switch circuit, when the touch switch is detected to be closed, hardware matching is performed; if the matched value is different from the initial parameter value or initial digital code of the device in the hardware matching circuit, The tamper detection circuit controls the ETC module not to work for the purpose of tamper resistance.
  • step 500 includes: detecting a signal parameter and a digital code of a touch switch circuit and a hardware matching circuit.
  • the step 501 includes detecting the voltage value occupied by the resistor connected in series in the touch switch circuit to obtain the on-off state of the switch contact.
  • FIG. 1 is a cross-sectional view of a rear view mirror provided by an embodiment of the present disclosure
  • FIG. 2 is an exploded view of a rear view mirror provided by an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram of a partial structure of a rear view mirror under a first perspective according to an embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a partial structure of a rear view mirror under a second viewing angle provided by an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a partial structure of another rear view mirror provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a partial circuit structure of a rear view mirror provided by an embodiment of the present disclosure
  • FIG. 7 is a working flowchart of a tamper detection circuit in a rearview mirror provided by an embodiment of the present disclosure
  • FIG. 8 is a schematic diagram of a connection relationship of main components in a rear view mirror provided by an embodiment of the present disclosure.
  • Icons 10-rear mirror; 11-rear mirror body; 110-front shell; 1101-key board; 112-rear shell; 1120-first rubber column; 1122-second silicone column; 113-ETC module; 114 -Display screen; 115-chip holder; 116-processing chip; 117-light guide plate; 118-speaker; 12-mirror bracket; 120-hollow connecting rod; 122-base; 1221-touch switch circuit; 1222-PCB Cover; 1223-touch switch; 1224-first screw; 1225-square hole; 1226-stop; 1227-second screw; 20-film; 30-windshield; 40-wire; 50-lens; 51- Lens holder; 300-touch switch circuit; 400- hardware matching circuit.
  • orientation or positional relationship indicated by the terms “inside” and “outside” is based on the orientation or positional relationship shown in the accompanying drawings, or is commonly placed when the product of the invention is used.
  • the orientation or positional relationship is only for the convenience of describing the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present disclosure.
  • the terms “first”, “second”, and the like are only used to distinguish descriptions, and cannot be understood to indicate or imply relative importance.
  • the rear-view mirror 10 includes a rear-view mirror body 11 and a rear-view mirror bracket 12; an ETC module 113 and a tamper detection circuit are disposed in the rear-view mirror body 11;
  • the mirror support 12 includes a hollow connecting rod 120 and a base 122 communicating with the hollow connecting rod 120; the rearview mirror body 11 is connected to the base 122 through the hollow connecting rod 120; and a contact is provided on the base 122
  • the touch switch circuit 1221 and a protective member cover the rest of the touch switch circuit 1221 except for the switch contact.
  • the base 122 is fixed on the windshield 30 through the backsheet 20, and the switch contact It is in contact with the side end adjacent to the windshield 30 on the negative 20; the touch switch circuit 1221 and the tamper detection circuit are electrically connected through a wire 40 disposed inside the hollow connecting rod 120, and the tamper detection circuit is used to detect the switch
  • the state of the contacts, and the control state of the ETC module 113 is controlled according to the state.
  • the side of the protective member in contact with the backsheet 20 is inclined.
  • the wire 40 may be provided as a single wire unit, or may be provided as a wire bundle integrated by a plurality of wire units, and a wire protection sleeve may be provided for the wire 40 to increase the service life of the wire 40.
  • the protective member may be a PCB cover 1222, a square hole 1225 for receiving the touch switch circuit 1221 is opened in the base 122, and the touch switch circuit 1221 is placed in the square hole 1225.
  • the PCB cover 1222 is fixed to the base 122 by a first screw 1224 and covers a portion of the touch switch circuit 1221 other than the contacts of the touch switch 1223.
  • the side end of the negative sheet 20 adjacent to the windshield 30 is in contact with the contact, and the side of the PCB cover 1222 that is in contact with the side end is inclined.
  • the negative film 20 may be fixed on the windshield first, then the base 122 and the negative film 20 are bonded together, and then the relative position of the base 122 and the negative film 20 is fixed by screws.
  • the protection member may be a stopper 1226.
  • a space for receiving the touch switch circuit 1221 is provided in the base 122, and a baffle is provided on the side of the accommodating space that is in contact with the negative 20.
  • the touch switch circuit 1221 is placed in the accommodating space.
  • a part of the touch switch 1223 other than the contacts is partially covered by the baffle, and the other part is covered by the stopper 1226.
  • the side of the film 20 adjacent to the windshield is in contact with the contact, and the stopper 1226 is in contact with the side end.
  • the side where the stopper 1226 is in contact with the side end is inclined.
  • the stopper 1226 can be fixed to the film by the second screw 1227. 20 or base 122.
  • the negative film 20 may be fixed on the windshield first, then the base 122 and the negative film 20 are bonded together, and then the relative position of the base 122 and the negative film 20 is fixed by screws.
  • the negative 20 may be a glass negative or a rubber negative
  • the rearview mirror bracket 12 may be a metal bracket or an alloy bracket.
  • the rear-view mirror bracket 12 is mounted on the bottom plate 20, and the touch switch circuit 1221 is squeezed in.
  • the touch switch circuit 1221 and the lead wire 40 are tightly sandwiched between the protective member, the negative 20 and the rear-view mirror bracket 12.
  • the relative tightness of the space provides a good protection for the touch switch circuit 1221 and the lead wire 40. Therefore, the reliability of the anti-removal of the rear-view mirror 10 of this embodiment is ensured, and the security and anti-theft performance thereof is improved.
  • the oblique setting of the side where the protective member contacts the backsheet 20 greatly reduces the possibility of a human hand reaching into and pressing the contact of the touch switch 1223, ensuring the tightness of the anti-disassembly system, and further improving the rear view of this embodiment. Mirror's security and anti-theft performance.
  • a resistance R is connected in series to the touch switch circuit 300, and the tamper detection circuit is used to determine the state of the switch contact by detecting the voltage of the resistance R.
  • the resistance R is in a series relationship with the touch switch 1223, the voltage of the resistance R will change due to the state of the switch contacts.
  • the switch contact is in the ON state
  • the normal voltage value of the resistor R is detected in the tamper detection circuit; when the switch contact is in the OFF state, the switch circuit 300 may be in an open or shorted state when touching the switch.
  • the voltage value of R may decrease or become 0.
  • the control ETC module 113 is no longer working.
  • the base 122 is further provided with a hardware matching circuit 400 connected in parallel with the touch switch circuit 300.
  • the tamper detection circuit is connected to the hardware matching circuit 400 through a wire 40.
  • the tamper detection circuit is configured to detect signals of the hardware matching circuit 400 by In order to control the working state of the ETC module 113.
  • the hardware matching circuit 400 includes at least one device C, and the signal of the device C will change when it is affected.
  • the tamper detection circuit is used to control the working state of the ETC module 113 according to the state of the signal.
  • the device C may be a resistor, a cryptographic IC, or another device.
  • the signal sent by the device C will change, and the signal form sent may be a device parameter value or a digital code of the device C.
  • the tamper detection circuit cannot detect the parameter value or digital code of the device C, or when the parameter value of the device C is abnormal or the digital code is changed, the tamper detection circuit controls the ETC module 113 to stop working.
  • FIG. 7 is the working flow of the tamper detection circuit.
  • the workflow includes: Step 500: Power-on self-test.
  • the content of the self-test can be to detect the signal parameters and digital codes generated by the touch switch circuit 300 and the hardware matching circuit 400.
  • the tamper detection circuit will detect the detected device
  • the parameter value or digital code of C is used as the initial parameter value or initial digital code of device C;
  • Step 502 Hardware matching.
  • step 504 is performed; if the value matched is different from the initial parameter value or the initial digital code of the device C, Go to step 503.
  • Step 503 The control ETC module 113 fails and does not work.
  • Step 504 Control the ETC module 113 to work normally.
  • the voltage of the resistor R can determine the state of the switch contact, so touching the switch circuit 300 can convert the state of the switch contact into an electrical signal and transmit it to the tamper detection circuit, thereby controlling the working state of the ETC module 113 and effectively To achieve the purpose of tampering.
  • the hardware matching circuit 400 is equivalent to a strengthened tamper circuit that can achieve the same tamper resistance function as the touch switch circuit 300, and can also control the working state of the ETC module 113.
  • the hardware matching circuit 400 cooperates with the touch switch circuit 300. , Increased resistance to demolition.
  • the rearview mirror body 11 includes a front case 110, a rear case 112, and a processing chip 116.
  • the rear case 112 is equipped with a lens 50 connected to the processing chip 112.
  • the processing chip 116 is used for The image acquired by the lens 50 is received, and the image is controlled to be displayed on a display device connected to the processing chip 116.
  • the ETC module 113 may be placed in the rear case 112, and the front case 110 and the rear case 112 may be fixed by a first rubber column 1120 provided at a first end inside and a second silicone column 1122 provided at a second end inside.
  • the rear-view mirror body 11 is formed.
  • screws can also be respectively provided on the outside of the front case 110 and the rear case 112 to further fasten the front case 110 and the rear case 112 together.
  • the display device may be a vehicle-mounted display in a vehicle cabin, or may be a display screen provided in the rearview mirror 10.
  • the lens 50 may be mounted on the rear case 112 through a lens holder 51.
  • the front case 110 is inlaid with a display screen 114, and the display screen 114 is connected to the processing chip 116.
  • the processing chip 116 Such a setting enables the processing chip 116 to control the image display on the display screen 114.
  • the display screen 114 can be anti-glare glass, which can effectively reduce the adverse effect of light on the driver's eyes during driving.
  • the display screen 114 may be a touchable display screen. Such a setting enables a user to conveniently operate it, thereby greatly improving the human-computer interaction of the rear-view mirror 10 of this embodiment.
  • the lens 50 can record a driving state of the vehicle by acquiring an image.
  • Such a configuration makes the rearview mirror 10 have the function of a driving recorder, and improves the functionality of the rearview mirror in this embodiment.
  • the rearview mirror body 11 further includes a light guide plate 117 and a chip holder 115.
  • the processing chip 116 is disposed on the chip holder 115.
  • the light guide plate 117 is located between the chip holder 115 and the display screen 114.
  • the processing chip 116 is further provided with The LED light, the light emitted by the LED light passes through the light guide plate 117, and a preset mark on the light guide plate 117 is displayed on the display screen 114.
  • the preset mark may be specifically designed according to a function prompt mark to be displayed on the display screen 114.
  • the display screen 114 can also be provided with a touch screen function, and the corresponding function can be realized when the corresponding icon is touched, which is very convenient.
  • a speaker 118 is provided on the processing chip 116, and the speaker 118 is used to output prompt information.
  • the speaker 118 may prompt whether the stored-value card is inserted; or, when the vehicle generates a deduction through the toll station, it may prompt the deducted fee information and balance information.
  • the front case 110 is provided with keys, and the keys are connected to the processing chip 116.
  • the processing chip 116 is configured to receive key operations through the keys and control the output volume of the speaker 118 according to the key operations.
  • the key can be a keypad 1101.
  • a slot or hole for accommodating the keypad 1101 is provided in the front case 110.
  • the keypad 1101 is locked in the slot or hole and is connected to the processing chip 116.
  • the processing chip 116 senses the keypad 1101. Operation to control the output volume of the speaker 118.
  • the volume of the speaker 118 is controlled by setting keys, so that the volume of the speaker 118 can be adjusted according to the actual needs of the user, thereby satisfying the various use needs of different users.
  • the display screen 114, the speaker 118, the buttons, and the LED are all connected to the processing chip 116, so that the user can conveniently control the display screen 114, the speaker 118, the buttons, and the LED through the processing chip 116.
  • the tamper detection circuit may be provided on the processing chip 116, or the tamper detection circuit may be provided as a separate circuit module and connected to the processing chip 116.
  • the processing chip 116 may be an integrated circuit board including multiple devices and circuits, or may be a microchip with integrated microelectronic components.
  • the processing chip 116 can also be connected to the vehicle-mounted central control system, so that the user can realize indirect control of the components connected to the processing chip 116 through the vehicle-mounted central control system, and the control process is more convenient.
  • each block in the flowchart or block diagram may represent a module, a program segment, or a part of code, which contains one or more components for implementing a specified logical function Executable instructions.
  • the functions marked in the blocks may also occur in a different order than those marked in the drawings.
  • each block in the block diagrams and / or flowcharts, and combinations of blocks in the block diagrams and / or flowcharts can be implemented in a dedicated hardware-based system that performs the specified function or action. , Or it can be implemented with a combination of dedicated hardware and computer instructions.
  • the functional modules in the various embodiments of the present disclosure may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
  • the rearview mirror provided by the present application realizes the reliable installation of the ETC module. While ensuring the normal operation of the ETC module, it also greatly reduces the possibility of the ETC module being removed and cracked, and improves the safety performance of the vehicle, thereby reducing the Car owner's loss.

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Abstract

本申请公开了一种后视镜，属于车辆设备领域。该后视镜包括后视镜本体和后视镜支架；后视镜本体内置有ETC模块和防拆检测电路；后视镜支架包括中空连接杆和与中空连接杆连通的底座；后视镜本体通过中空连接杆与底座连接；底座上设置有触碰开关电路和保护件，保护件覆盖触碰开关电路的除开关触点之外的其余部分，底座通过底片固定在挡风玻璃上，且开关触点与底片上与挡风玻璃相邻的侧端抵接；触碰开关电路与防拆检测电路通过穿设于中空连接杆内部的导线电连接，防拆检测电路配置成检测开关触点的状态。该后视镜具备较为严密的防破解的防拆体系，有效地提高了防拆性。

Description

后视镜及后视镜中ETC模块的防拆方法
相关申请的交叉引用
本申请要求于2018年5月25日提交中国专利局的申请号为201810517370.0、名称为“后视镜”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本公开涉及车辆设备技术领域，具体而言，涉及一种后视镜及后视镜中ETC模块的防拆方法。
背景技术
为了通行的方便，越来越多的车主安装了ETC(Electronic Toll Collection，不停车收费系统)模块，ETC模块通常是粘贴在副驾驶偏方向盘一侧的挡风玻璃上的，也有直接把模块卡在后视镜上的。为了防止将ETC模块拆下用于其他车，如大车小用，用来逃费等，部分ETC模块带有防拆功能。
现有的后视镜ETC模块防拆技术，提出了可以用一个触碰开关实现防拆的目的。但是，现有的技术并未合理地设计触碰开关的位置，使ETC模块仍然很容易被拆除和破解，被破解后还可以用于其他的车辆，并没有实现应有的防拆效果。
发明内容
为了克服现有技术中的上述不足，本公开的目的包括，提供一种后视镜。
本公开实施例提供的后视镜，包括后视镜本体和后视镜支架；所述后视镜本体内置有ETC模块和防拆检测电路；所述后视镜支架包括中空连接杆和与所述中空连接杆连通的底座；所述后视镜本体通过所述中空连接杆与所述底座连接；所述底座上设置有触碰开关电路和保护件，所述保护件覆盖所述触碰开关电路的除开关触点之外的其余部分，所述底座通过底片固定在挡风玻璃上，且所述开关触点与所述底片上与所述挡风玻璃相邻的侧端抵接；所述触碰开关电路与所述防拆检测电路通过穿设于所述中空连接杆内部的导线电连接，所述防拆检测电路配置成检测所述开关触点的状态，并根据所述状态控制所述ETC模块的工作状态。
所述后视镜支架被安装到所述底片上，所述开关触点被挤压进去。所述触碰开关电路以及连接所述触碰开关电路和所述防拆检测电路的导线，被严密地夹在所述挡风玻璃、所述底片以及所述后视镜支架之间，使得其几乎不会受到外来异物的干扰。所以对所述触碰开关电路和所述导线，形成了较为严密的保护体系，提高了其防拆性能。
进一步地，所述触碰开关电路的回路上串联有电阻，所述防拆检测电路配置成通过检测所述电阻的电压确定所述开关触点的状态。
所述电阻的电压可以确定所述开关触点的状态，所以所述触碰开关电路可以把所述开 关触点的状态转化为电信号传输给所述防拆检测电路，从而控制所述ETC模块的工作状态，有效的实现防拆的目的。
进一步地，所述底座上还设置有与所述触碰开关电路并联的硬件匹配回路，所述防拆检测电路通过所述导线电连接所述硬件匹配回路，所述防拆检测电路还配置成通过检测所述硬件匹配回路的信号控制所述ETC模块的工作状态。
进一步地，所述硬件匹配回路包括至少一个器件，所述器件的信号感应到拆除动作时状态改变，所述防拆检测电路配置成根据所述信号的状态控制所述ETC模块的工作状态。
所述硬件匹配电路相当于能实现和所述触碰开关电路同样的防拆功能的防拆电路，也能控制所述ETC模块的工作状态，因此通过所述硬件匹配电路，增加了抗拆能力。
进一步地，所述保护件与所述底片接触的一面倾斜，配置成与所述底片的侧面紧密贴合。
所述保护件与所述底片接触的一面倾斜设置，可以在一定程度上防止有人从所述底座上部伸入至所述底片处以按住触碰开关。
进一步地，所述后视镜本体包括前壳、后壳和处理芯片，所述后壳上安装有与所述处理芯片连接的镜头，所述处理芯片配置成接收所述镜头获取的图像，并控制所述图像显示在与所述处理芯片连接的显示装置上。
进一步地，所述显示装置包括镶嵌在所述前壳上的显示屏，所述显示屏与所述处理芯片连接，所述处理芯片控制所述图像显示在所述显示屏上。
所述镜头可以记录所述车辆行驶的状态，使所述后视镜具有行车记录仪的功能。
进一步地，所述后视镜本体还包括导光板和芯片架，所述处理芯片设置于所述芯片架上，所述导光板位于所述芯片架和所述显示屏之间，所述处理芯片上还设置有LED(Light-Emitting Diode，发光二极管)灯，所述LED灯发射的光穿透过所述导光板，将所述导光板上的预设标记显示在所述显示屏上。
通过所述芯片架与所述导光板的配合，可以将预设标记显示在所述显示屏上，节省成本。
进一步地，所述处理芯片连接喇叭，所述喇叭配置成输出提示信息。
通过设置喇叭，在进行相关操作时，所述喇叭可以及时为用户提示相关信息。
进一步地，所述前壳上设置有按键，所述按键与所述处理芯片连接，所述处理芯片配置成通过所述按键接收按键操作并根据所述按键操作控制所述喇叭的输出音量。
通过设置按键，使得用户可以方便地对所述喇叭的音量进行控制，以使喇叭音量可根据具体环境调节，从而满足了不同用户的不同需求。
进一步地，所述前壳与所述后壳之间为可拆卸式固定连接。
进一步地，所述导线上包裹设置有导线保护套。
进一步地，所述保护件包括PCB(Printed Circuit Board，印刷电路板)盖。
本公开的目的还包括，提供一种后视镜中ETC模块的防拆方法。
本公开提供的后视镜中ETC模块的防拆方法，配置成提高上述后视镜中的ETC模块的防拆性能，包括如下步骤：
步骤501：对触碰开关回路中的触碰开关进行检测，当检测到触碰开关断开时，防拆检测电路控制ETC模块不工作，以实现防拆目的。
进一步地，还包括硬件匹配。
在对触碰开关回路中的触碰开关进行检测时，当检测到触碰开关闭合时，进行硬件匹配；若匹配到的值与硬件匹配回路中器件的初始参数值或者初始数字编码不同时，防拆检测电路控制ETC模块不工作，以实现防拆目的。
进一步地，所述步骤501之前还包括步骤500，所述步骤500包括：对触碰开关回路和硬件匹配回路的信号参数和数字编码进行检测。
进一步地，所述步骤501包括通过对串联在触碰开关回路中的电阻所占的电压值进行检测，以获取开关触点的通断状态。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例中所需要使用的附图作简单地介绍。应当理解，以下附图仅示出了本公开的某些实施例，因此不应被看作是对范围的限定，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他相关的附图。
图1是本公开实施例提供的后视镜的剖视图；
图2是本公开实施例提供的后视镜的爆炸图；
图3是本公开实施例提供的后视镜在第一视角下的局部结构示意图；
图4是本公开实施例提供的后视镜在第二视角下的局部结构示意图；
图5是本公开实施例提供的另一种后视镜的局部结构示意图；
图6是本公开实施例提供的后视镜的局部电路结构示意图；
图7是本公开实施例提供的后视镜中，其防拆检测电路的工作流程图；
图8是本公开实施例提供的后视镜中，其主要组成部件的连接关系示意图。
图标：10-后视镜；11-后视镜本体；110-前壳；1101-按键板；112-后壳；1120-第一橡胶柱；1122-第二硅胶柱；113-ETC模块；114-显示屏；115-芯片架；116-处理芯片；117-导光板；118-喇叭；12-后视镜支架；120-中空连接杆；122-底座；1221-触碰开关电路；1222-PCB盖；1223-触碰开关；1224-第一螺钉；1225-方孔；1226-挡块；1227-第二螺钉； 20-底片；30-挡风玻璃；40-导线；50-镜头；51-镜头支架；300-触碰开关回路；400-硬件匹配回路。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。通常在此处附图中描述和示出的本公开实施例的组件可以以各种不同的配置来布置和设计。
因此，以下对在附图中提供的本公开的实施例的详细描述并非旨在限制要求保护的本公开的范围，而是仅仅表示本公开的选定实施例。基于本公开的实施例，本领域技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
应注意到：相似的标号和字母在下面的附图中表示类似项，因此，一旦某一项在一个附图中被定义，则在随后的附图中不需要对其进行进一步定义和解释。
在本公开的描述中，需要说明的是，术语“内”、“外”等指示的方位或位置关系为基于附图所示的方位或位置关系，或者是该发明产品使用时惯常摆放的方位或位置关系，仅是为了便于描述本公开和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本公开的限制。此外，术语“第一”、“第二”等仅用于区分描述，而不能理解为指示或暗示相对重要性。
在本公开的描述中，需要说明的是，除非另有明确的规定和限定，术语“设置”、“相连”、“连接”、“安装”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接。可以是机械连接，也可以是电性连接。可以是直接相连，也可以通过中间媒介间接相连，还可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以具体情况理解上述术语在本公开中的具体含义。
下面结合附图，对本公开的一些实施方式作详细说明。在不冲突的情况下，下述的实施例及实施例中的特征可以相互组合。
请参照图1和图2，所述后视镜10包括后视镜本体11和后视镜支架12；所述后视镜本体11内设置有ETC模块113和防拆检测电路；所述后视镜支架12包括中空连接杆120和与所述中空连接杆120连通的底座122；所述后视镜本体11通过所述中空连接杆120和所述底座122连接；所述底座122上设置有触碰开关电路1221和保护件，所述保护件覆盖所述触碰开关电路1221的除开关触点之外的其余部分，所述底座122通过底片20固定在挡风玻璃30上，且开关触点与底片20上与挡风玻璃30相邻的侧端抵接；触碰开关电路1221与防拆检测电路通过穿设于中空连接杆120内部的导线40电连接，防拆检测电路用于检测开关触点的状态，并根据状态控制ETC模块113的控制状态。
可选的，保护件与底片20接触的一面是倾斜的。
可选的，导线40可以设置为单一导线单元，也可以设置为由多个导线单元集成的导线束，并且，还可以为导线40设置导线保护套，以增加导线40的使用寿命。
可选的，请参照图3和图4，保护件可以为PCB盖1222，底座122内开设用于容置触碰开关电路1221的方孔1225，触碰开关电路1221放置在方孔1225内，PCB盖1222通过第一螺钉1224与底座122固定，并覆盖触碰开关电路1221除触碰开关1223触点以外的部分。底片20与挡风玻璃30相邻的侧端与触点抵接，且PCB盖1222与侧端接触的一面倾斜设置。底片20可以先固定在挡风玻璃上，再将底座122与底片20贴合，再通过螺钉固定底座122与底片20的相对位置。
可选的，请参照图5，保护件可以为挡块1226，底座122内开设用于容置触碰开关电路1221的空间，且容置空间在与底片20接触的一面设置有挡板。触碰开关电路1221放置在容置空间内，触碰开关1223除触点以外的部分一部分被挡板覆盖，另一部分由挡块1226覆盖。底片20与挡风玻璃相邻的侧端与触点抵接，且挡块1226与侧端接触，挡块1226与侧端接触的一面倾斜设置，挡块1226可以通过第二螺钉1227固定在底片20上或者底座122上。底片20可以先固定在挡风玻璃上，再将底座122与底片20贴合，再通过螺钉固定底座122与底片20的相对位置。
可选的，底片20可以为玻璃底片或者橡胶底片，后视镜支架12可以为金属支架或者合金支架。
后视镜支架12被安装到底片20上，触碰开关电路1221被挤压进去。触碰开关电路1221和导线40被严密地夹在保护件、底片20和后视镜支架12三者之间，空间的相对密闭性为触碰开关电路1221和导线40起到了很好的保护作用，从而保证了本实施例后视镜10防拆卸的可靠性，提高了其安全防盗性能。并且，保护件与底片20接触一面的倾斜设置，极大地降低了人手伸入将触碰开关1223的触点按下的可能，确保了防拆卸体系的严密性，进一步提高了本实施例后视镜的安全防盗性能。
可选的，请参照图6，触碰开关回路300上串联有电阻R，防拆检测电路用于通过检测电阻R的电压确定开关触点的状态。
由于电阻R与触碰开关1223为串联关系，故电阻R的电压会因开关触点的状态而改变。当开关触点为导通状态时，防拆检测电路中检测到的是电阻R的正常电压值；当开关触点为断开状态时，触碰开关回路300可能会出现断路或者短路状态，电阻R的电压值可能减小或者变为0，当防拆检测电路检测到电阻R的异常电压值后，控制ETC模块113不再工作。
可选的，底座122上还设置有与触碰开关回路300并联的硬件匹配回路400，防拆检测电路通过导线40连接硬件匹配回路400，防拆检测电路用于通过检测硬件匹配回路400的 信号以控制ETC模块113的工作状态。
可选的，硬件匹配回路400包括至少一个器件C，器件C的信号在受到影响时将发生改变，防拆检测电路用于根据信号的状态控制ETC模块113的工作状态。
可选的，器件C可以是电阻，也可以是加密IC，也可以是其他器件。器件C在感应到外部的拆除动作时，器件C发送的信号会改变，发送的信号形式可以是器件参数值，也可以是器件C的数字编码。当防拆检测电路检测不到器件C的参数值或者数字编码时，或者，器件C的参数值异常或者数字编码改变时，防拆检测电路则控制ETC模块113不再工作。
图7为防拆检测电路的工作流程。请参照图7，可选的，工作流程包括：步骤500：上电自检。自检的内容可以是检测触碰开关回路300和硬件匹配回路400产生的信号参数和数字编码；当用ETC模块113的激活权限卡激活ETC模块113时，防拆检测电路会把检测到的器件C的参数值或者数字编码作为器件C的初始参数值或者初始数字编码；步骤501：触碰开关1223检测。检测到触碰开关1223闭合，执行步骤502；检测到触碰开关断开，执行步骤503。步骤502：硬件匹配。与硬件匹配回路400的器件C匹配，若匹配到的值与器件C的初始参数值或者初始数字编码相同，执行步骤504；若匹配到的值与器件C的初始参数值或者初始数字编码不同，执行步骤503。步骤503：控制ETC模块113失效，不工作。步骤504：控制ETC模块113正常工作。
一方面，电阻R的电压可以确定开关触点的状态，所以触碰开关回路300可以把开关触点的状态转化为电信号传输给防拆检测电路，从而控制ETC模块113的工作状态，有效地实现防拆的目的。另一方面，硬件匹配回路400相当于能实现与触碰开关回路300同样的防拆功能的加强防拆电路，也能控制ETC模块113的工作状态，通过硬件匹配回路400配合触碰开关回路300，增加了抗拆能力。
可选的，请再次参照图2，后视镜本体11包括前壳110、后壳112和处理芯片116，其中，后壳112上安装有与处理芯片112连接的镜头50，处理芯片116用于接收镜头50获取的图像，并控制图像显示在与处理芯片116连接的显示装置上。
可选的，ETC模块113可以放置在后壳112内，前壳110和后壳112可以通过设置在内部的第一端的第一橡胶柱1120和设置在内部第二端的第二硅胶柱1122固定为一体，以构成后视镜本体11。此外，前壳110和后壳112的外部也可以分别设置螺钉，以进一步将前壳110与后壳112紧固在一起。
可选的，显示装置可以为车室内的车载显示器，也可以为后视镜10自带的显示屏。镜头50可以通过镜头支架51安装在后壳112上。
可选的，前壳110上镶嵌有显示屏114，显示屏114与处理芯片116连接。这样的设置，使得处理芯片116能够控制图像显示在显示屏114上。
可选的，显示屏114可以为防眩目玻璃，防眩目玻璃可以在驾驶过程中，有效削弱光线对驾驶者眼睛的不利影响。其中，显示屏114可以为可触摸显示屏。这样的设置，使得用户能够方便地对其进行操作，从而大大提高了本实施例后视镜10的人机交互性。
本实施例中，镜头50可以通过获取图像来记录车辆的行驶状态。这样的设置，使后视镜10具有行车记录仪的功能，提高了本实施例后视镜的功能性。
可选的，后视镜本体11还包括导光板117和芯片架115，处理芯片116设置于芯片架115上，导光板117位于芯片架115和显示屏114之间，处理芯片116上还设置有LED灯，LED灯发射的光穿透过导光板117，将导光板117上的预设标记显示在显示屏114上。
可选的，预设标记可以根据显示屏114上所要显示的功能提示标记具体设计。
通过芯片架115和导光板117的配合，用简单的方式就可以将字符显示出，不需要再单独用其他方式在显示屏114上设计相应的图标，节省成本。同时，也可以使显示屏114具有触摸屏的功能，当触摸相应图标时便可以实现对应的功能，十分方便。
可选的，处理芯片116上设置有喇叭118，喇叭118用于输出提示信息。
可选的，喇叭118可以提示储值卡是否插好；或者，当车辆通过收费站产生扣费时，提示扣除的费用信息和余额信息。
可选的，前壳110上设置有按键，按键与处理芯片116连接，处理芯片116用于通过按键接收按键操作并根据按键操作控制喇叭118的输出音量。可选的，按键可以为按键板1101，前壳110上开设容置按键板1101的槽或孔，按键板1101卡在槽或孔内，并与处理芯片116连接，处理芯片116感应按键板1101的操作，进而控制喇叭118的输出音量。
通过设置按键来控制喇叭118的音量，使喇叭118的音量可以根据用户的实际需求进行调整，从而满足了不同用户的多种使用需求。
可选的，请参照图8，显示屏114、喇叭118、按键和LED均与处理芯片116相连，使得用户可以通过处理芯片116方便地实现对显示屏114、喇叭118、按键和LED的控制。并且，防拆检测电路可以设置在处理芯片116上，或者，将防拆检测电路设置为单独的电路模块，并使其与处理芯片116连接。其中，处理芯片116可以是包括多个器件和电路的集成电路板，也可以是微电子元件集成的微芯片。本实施例中，处理芯片116也可以与车载中控系统连接，使得用户可以通过车载中控系统实现对与处理芯片116相连部件的间接控制，控制过程更加方便。
在本申请所提供的实施例中，应该理解到，所揭露的装置和方法，也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，附图中的流程图和框图显示了根据本公开的多个实施例的装置、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部 分，所述模块、程序段或代码的一部分包含一个或多个用于实现规定的逻辑功能的可执行指令。也应当注意，在有些作为替换的实现方式中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这依所涉及的功能而定。也要注意的是，框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。
另外，在本公开各个实施例中的各功能模块可以集成在一起形成一个独立的部分，也可以是各个模块单独存在，也可以两个或两个以上模块集成形成一个独立的部分。
以上所述仅为本公开的实施例而已，并不用于限制本公开，对于本领域的技术人员来说，本公开可以有各种更改和变化。凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。
工业实用性
本申请提供的一种后视镜，实现了ETC模块的可靠安装，在保证ETC模块正常工作的同时，还大大降低了ETC模块被拆除和破解的可能，提高了车辆的安全性能，从而减少了车主的损失。

Claims (17)

  1. 一种后视镜，其特征在于，所述后视镜包括后视镜本体和后视镜支架；所述后视镜本体内置有ETC模块和防拆检测电路；所述后视镜支架包括中空连接杆和与所述中空连接杆连通的底座；所述后视镜本体通过所述中空连接杆与所述底座连接；所述底座上设置有触碰开关电路和保护件，所述保护件覆盖所述触碰开关电路的除开关触点之外的其余部分，所述底座通过底片固定在挡风玻璃上，且所述开关触点与所述底片上与所述挡风玻璃相邻的侧端抵接；所述触碰开关电路与所述防拆检测电路通过穿设于所述中空连接杆内部的导线电连接，所述防拆检测电路配置成检测所述开关触点的状态，并根据所述状态控制所述ETC模块的工作状态。
  2. 根据权利要求1所述的后视镜，其特征在于，所述触碰开关电路的回路上串联有电阻，所述防拆检测电路配置成通过检测所述电阻的电压确定所述开关触点的状态。
  3. 根据权利要求1所述的后视镜，其特征在于，所述底座上还设置有与所述触碰开关电路并联的硬件匹配回路，所述防拆检测电路通过所述导线电连接所述硬件匹配回路，所述防拆检测电路配置成通过检测所述硬件匹配回路的信号控制所述ETC模块的工作状态。
  4. 根据权利要求3所述的后视镜，其特征在于，所述硬件匹配回路包括至少一个器件，所述器件的信号感应到拆除动作时状态改变，所述防拆检测电路配置成根据所述信号的状态控制所述ETC模块的工作状态。
  5. 根据权利要求1-4任一项所述的后视镜，其特征在于，所述保护件与所述底片接触的一面倾斜，配置成与所述底片的侧面紧密贴合。
  6. 根据权利要求1-4任一项所述的后视镜，其特征在于，所述后视镜本体包括前壳、后壳和处理芯片，所述后壳上安装有与所述处理芯片连接的镜头，所述处理芯片配置成接收所述镜头获取的图像，并控制所述图像显示在与所述处理芯片连接的显示装置上。
  7. 根据权利要求6所述的后视镜，其特征在于，所述显示装置包括镶嵌在所述前壳上的显示屏，所述显示屏与所述处理芯片连接，所述处理芯片控制所述图像显示在所述显示屏上。
  8. 根据权利要求7所述的后视镜，其特征在于，所述后视镜本体还包括导光板和芯片架，所述处理芯片设置于所述芯片架上，所述导光板位于所述芯片架和所述显示屏之间，所述处理芯片上还设置有LED灯，所述LED灯发射的光穿透过所述导光板，将所述导光板上的预设标记显示在所述显示屏上。
  9. 根据权利要求8所述的后视镜，其特征在于，所述处理芯片连接喇叭，所述喇叭 配置成输出提示信息。
  10. 根据权利要求9所述的后视镜，其特征在于，所述前壳上设置有按键，所述按键与所述处理芯片连接，所述处理芯片配置成通过所述按键接收按键操作并根据所述按键操作控制所述喇叭的输出音量。
  11. 根据权利要求6所述的后视镜，其特征在于，所述前壳与所述后壳之间为可拆卸式固定连接。
  12. 根据权利要求1-4任一项所述的后视镜，其特征在于，所述导线上包裹设置有导线保护套。
  13. 根据权利要求1-4任一项所述的后视镜，其特征在于，所述保护件包括PCB盖。
  14. 一种后视镜中ETC模块的防拆方法，其特征在于，配置成提高权利要求1-13任一项所述的后视镜中的ETC模块的防拆性能，包括如下步骤：
    步骤501：对触碰开关回路中的触碰开关进行检测，当检测到触碰开关断开时，防拆检测电路控制ETC模块不工作，以实现防拆目的。
  15. 根据权利要求14所述的后视镜中ETC模块的防拆方法，其特征在于，还包括硬件匹配；
    在对触碰开关回路中的触碰开关进行检测时，当检测到触碰开关闭合时，进行硬件匹配；若匹配到的值与硬件匹配回路中器件的初始参数值或者初始数字编码不同时，防拆检测电路控制ETC模块不工作，以实现防拆目的。
  16. 根据权利要求15所述的后视镜中ETC模块的防拆方法，其特征在于，所述步骤501之前还包括步骤500，所述步骤500包括：
    对触碰开关回路和硬件匹配回路的信号参数和数字编码进行检测。
  17. 根据权利要求14所述的后视镜中ETC模块的防拆方法，其特征在于，所述步骤501包括通过对串联在触碰开关回路中的电阻所占的电压值进行检测，以获取开关触点的通断状态。
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