Optical distributed geometry deformation collision sensor and vehicle

Abstract

The utility model relates to an optical distributed geometric shape change collision sensor and vehicle, above-mentioned sensor includes: optical device and control circuit module. Optical device is used to be laid in the target main body in the vehicle that needs to carry out shape change monitoring. Control circuit module is separated and is laid with optical device, and has optical path connection between optical device. Among them, control circuit module contains: light source device, light sensor device and controller. Light source device is used to produce and output light signal to optical device, exports to light sensor device after carrying out optical path transmission via optical device, and light sensor device is used to determine the on-off state of optical path according to the receiving information of light signal, controller is connected with light source device and light sensor device, and in the case that the on-off state of optical path indicates that the optical path is disconnected under the condition that the preset degree of shape change occurs, triggers the control of controller to the control of vehicle door unlocking. The sensor can directly perceive geometric shape change and trigger the control of vehicle door unlocking, and can effectively improve the security of vehicle.

Description

Technical Field

[0001] This disclosure relates to the field of vehicle deformation monitoring and sensing technology, and in particular to an optical distributed geometric deformation collision sensor and a vehicle. Background Technology

[0002] With the increase in vehicle ownership and the gradual development and application of technologies such as autonomous driving and assisted driving, improving the safety of intelligent driving vehicles has become increasingly important.

[0003] In realizing the concept disclosed herein, the inventors discovered at least the following technical problems in the related technology: In some intelligent vehicles, vehicle status and road condition information are perceived through sensors. For example, some intelligent driving computing modules are usually based on visual sensors (such as camera devices) or radar sensors to sense whether there are obstacles, sense the distance to surrounding vehicles or the surrounding environment, etc., to determine whether a vehicle collision has occurred. In the scenario of a real vehicle collision, the vehicle has already undergone relatively serious deformation. However, most current sensors sense proxy variables related to the collision and cannot directly sense deformation. The perception method that relies on proxy variables composed of other signals is prone to false negatives: failing to unlock the car door when it should be unlocked, seriously threatening the life safety of the people inside the vehicle. Utility Model Content

[0004] To address or at least partially address the aforementioned technical problems, embodiments of this disclosure provide an optical distributed geometric deformation collision sensor and a vehicle.

[0005] In a first aspect, embodiments of this disclosure provide an optical distributed geometric deformation collision sensor. The optical distributed geometric deformation collision sensor includes: an optical element and a control circuit module. The optical element is deployed within a target body in a vehicle that requires deformation monitoring. The control circuit module is deployed separately from the optical element but is optically connected to it. The control circuit module includes: a light source device, a photosensitive element, and a controller. The light source device generates and outputs a light signal to the optical element, which is then transmitted optically and output to the photosensitive element. The photosensitive element determines the on / off state of the optical path based on the received light signal. The controller is connected to the light source device and the photosensitive element. When a predetermined degree of deformation causes the optical path to disconnect, the controller triggers the unlocking of the vehicle door.

[0006] In some embodiments, the arrangement of the optical devices matches the geometry of the area to be monitored in the target body. When the geometry of the area to be monitored in the target body is in a normal state, the light signal output by the light source device is normally transmitted to the light sensor device via the optical path of the optical devices, and the corresponding optical path on / off state is "optical path unobstructed." In a collision state where the area to be monitored in the target body undergoes deformation exceeding a preset degree, the deformation causes at least one displacement or angular change in some or all of the optical devices, resulting in a change in the transmission optical path that cannot be received by the light sensor or the intensity of the light signal received by the light sensor is lower than a set threshold, and the corresponding optical path on / off state is "optical path disconnected."

[0007] In some embodiments, the controller is used to connect to the door unlocking device. The controller has an unlocking control state. In the unlocking control state, the optical path on / off state indicates that the optical path is disconnected and the controller continuously sends an unlocking control signal to the door unlocking device.

[0008] In some embodiments, the control circuit module further includes a high-voltage direct-drive module connected to the controller. The high-voltage direct-drive module has a forced unlock state. In this forced unlock state, the optical path on / off state indicator is disconnected. The high-voltage direct-drive module receives an unlock control signal sent by the controller and outputs an unlock drive voltage according to the unlock control signal. The unlock drive voltage is used to drive the door unlocking device to perform a forced door opening action.

[0009] In some embodiments, the control circuit module further includes a multi-redundant power supply module. The multi-redundant power supply module includes a vehicle low-voltage power supply and a module-in-house battery power supply. The vehicle low-voltage power supply and the module-in-house battery power supply are connected via a first selection circuit. The switching trigger terminal of the first selection circuit is connected to the signal output terminal of the vehicle low-voltage power supply. When the vehicle low-voltage power supply fails and has no signal output, the first selection circuit is triggered to switch to the module-in-house battery power supply, which then starts operating. The stored energy of the module-in-house battery power supply supports: continuously sending an unlocking control signal for a first preset duration to the outside, or continuously sending a high-voltage direct-drive signal for a second preset duration to drive the door unlocking device to perform a forced door opening action.

[0010] In some embodiments, the aforementioned multi-redundant power supply module is further provided with a power monitoring circuit, which is connected to the vehicle low-voltage power supply, the module's built-in battery power supply, and the controller, respectively, for monitoring the voltage information of the vehicle low-voltage power supply and the module's built-in battery power supply; and for transmitting a power fault signal to the controller when the power monitoring circuit determines that a power fault exists based on the monitored voltage information.

[0011] In some embodiments, the aforementioned multi-redundant power supply module further includes a capacitor power supply. The module's built-in battery power supply and the capacitor power supply are connected via a second selection circuit. The switching trigger terminal of the second selection circuit is connected to the signal output terminal of the capacitor power supply. After the module's built-in battery power supply fails and has no signal output, the second selection circuit is triggered to switch to the capacitor power supply, which then starts operating. The stored energy of the capacitor power supply supports: continuously sending an unlock control signal for a third preset duration to the outside, or sending a high-voltage direct-drive signal for a fourth preset duration.

[0012] In some embodiments, the aforementioned multi-redundant power supply module is further provided with a power monitoring circuit. The power monitoring circuit is connected to the vehicle low-voltage power supply, the module's built-in battery power supply, the capacitor power supply, and the controller, respectively, and is used to monitor the voltage information of the vehicle low-voltage power supply, the module's built-in battery power supply, and the capacitor power supply. When the power monitoring circuit determines that a power fault exists based on the monitored voltage information, it transmits a power fault signal to the controller.

[0013] In some embodiments, the optically distributed geometric deformation collision sensor described above includes one or more of the following:

[0014] The aforementioned optical device is a reflective optical path system composed of multiple mirrors arranged along the geometry of the target body; or,

[0015] The aforementioned optical device is a brittle optical guide glass structure arranged along the geometry of the target body, which is damaged or broken upon impact. The arrangement includes at least one of the following: a complete brittle optical guide glass structure is arranged along the inner edge of the geometry of the target body; or, multiple brittle optical guide glass structure segments and optical fibers connecting the brittle optical guide glass structure segments are arranged along the inner edge of the geometry of the target body; or...

[0016] The aforementioned optical device comprises a brittle optical guide glass structure embedded, either fully or partially, into the geometry of the target body, which breaks or fractures upon impact. The embedded arrangement is at least one of the following: a complete brittle optical guide glass structure embedded into the geometry of the target body; or, multiple brittle optical guide glass structure segments embedded into the geometry of the target body and optical fibers connecting the brittle optical guide glass structure segments; or...

[0017] The aforementioned control circuit module is used to install in a safe area within the vehicle, and the target of the aforementioned optical device is at least one of the following locations on the vehicle: the upper edge of the engine compartment, the inside of the hood, the inside of the door, or the inside of the bumper; or,

[0018] The aforementioned control circuit module also includes: a multi-redundant power supply module; the multi-redundant power supply module includes: multiple heterogeneous target power supplies connected in parallel for connecting to the load to supply power; the target power supplies include: a vehicle low-voltage power supply, a module-integrated battery power supply, and a capacitor power supply; short-circuit protectors are provided between adjacent target power supplies and between target power supplies and the load; wherein, the module-integrated battery power supply supplies power to the load while also charging the vehicle low-voltage power supply and the capacitor power supply; or,

[0019] The aforementioned light source device is connected to the optical path input and output integrated device, and the aforementioned light sensor device is connected to the optical path input and output integrated device; or,

[0020] The aforementioned light source device is connected to a beam splitter. The reference light signal output from the first output terminal of the beam splitter is input to the logic circuit in the aforementioned controller, and the detection light signal output from the second output terminal of the beam splitter is input to the aforementioned logic circuit. The aforementioned logic circuit is used to output control signals according to the on / off state of the input reference light signal and the detection light signal; or,

[0021] Multiple sets of optical distributed geometric deformation collision sensors are deployed on the same target body, or one or more sets of optical distributed geometric deformation collision sensors are deployed on target bodies in different areas respectively; among them, the multiple sets of optical distributed geometric deformation collision sensors deployed on the same target body or target bodies in different areas use a common controller to perform logical operations on the receiving status of the optical signals corresponding to multiple optical paths to generate a total signal, and generate a control signal based on the total signal.

[0022] Secondly, embodiments of this disclosure provide a vehicle. The vehicle includes the optically distributed geometric deformation collision sensor provided in the first aspect embodiment.

[0023] The aforementioned vehicles include, but are not limited to, one of the following types of vehicles: gasoline vehicles, range-extended electric vehicles, hybrid vehicles, electric vehicles, fuel cell vehicles (such as hydrogen fuel cell vehicles), or other types of vehicles.

[0024] The technical solutions provided in some embodiments of this disclosure have at least some or all of the following advantages:

[0025] The light signal generated and output by the light source device is transmitted to the photosensitive device via optical components, forming a transmission optical path. Since the optical components are installed inside the target body of the vehicle that needs to be deformed, once a collision occurs and the vehicle body is damaged and deformed, this deformation will cause the layout of the optical components to change synchronously. Specifically, it can be a change in displacement or angle, resulting in a synchronous and precise change in the transmission optical path. This allows for precise sensing of the vehicle body deformation and transmission to the photosensitive device. When the light path is open, the photosensitive device does not send a trigger signal to the controller to unlock the door. When the light path is closed, the photosensitive device sends a trigger signal to the controller to trigger the controller to unlock the door. This sensor can directly sense geometric deformation and trigger door unlocking control, unlocking the door with the most direct (rather than a proxy variable) and shortest signal path, maximizing the safety of the occupants and effectively improving vehicle safety. Furthermore, the control circuit module and optical components are laid out separately and connected based on the optical path (non-contact connection). The optical components are placed inside the target body that is prone to deformation. During the vehicle collision deformation, only the layout of the optical components is affected or the optical components are damaged, which affects the optical path. This is reflected in the optical path on / off status, indicating that the optical path is disconnected without affecting the normal operation of the control circuit module. This ensures the normal transmission of trigger signals, the normal issuance of control signals, and the effective execution of door unlocking.

[0026] The technical solutions provided in some embodiments of this disclosure have at least some or all of the following advantages:

[0027] By setting the placement of optical devices to match the geometry of the monitored area within the target body, such as installing them in areas prone to collision deformation (including, but not limited to, the upper edge of the engine compartment, the inside of the hood, the inside of the doors, and the inside of the front and rear bumpers), comprehensive control of these easily deformable locations during collisions allows for all-round and all-area perception of the vehicle's geometric deformation caused by collisions from different directions, methods, and shapes. This enables the doors to be unlocked under various collision conditions, making it applicable to a wide range of scenarios and offering high safety.

[0028] The technical solutions provided in some embodiments of this disclosure have at least some or all of the following advantages:

[0029] By setting up a high-voltage direct drive module connected to the controller, when the optical path is disconnected as indicated by the optical path on / off status indicator, the controller sends an unlocking control signal to the high-voltage direct drive module. The high-voltage direct drive module outputs an unlocking drive voltage according to the unlocking control signal to drive the door unlocking device to perform a forced door opening action. Even if the vehicle's low-voltage power supply fails during the collision, the door can still be quickly unlocked under the drive of the high-voltage direct drive module, ensuring that people can open the door and get out of the vehicle to escape the accident scene in time.

[0030] The technical solutions provided in some embodiments of this disclosure have at least some or all of the following advantages:

[0031] By setting up multiple redundant power modules, if any of the vehicle's low-voltage power supply, the module's built-in battery power supply, or the capacitor power supply has an incorrect voltage when the vehicle is not in a collision, the power monitoring circuit transmits a power fault signal to the controller. The controller locates the fault based on the power fault signal and can transmit the fault information to other systems in the vehicle (such as the display module or the voice prompt module) to remind the owner or maintenance personnel to perform maintenance, thereby realizing real-time monitoring of the power status and timely fault detection.

[0032] The technical solutions provided in some embodiments of this disclosure have at least some or all of the following advantages:

[0033] By setting a first selection circuit and a second selection circuit in the multi-redundant power supply module, the system can immediately switch to other normal power supplies to drive the door unlocking process in the event of failure of one or two of the multiple power supplies. Since the vehicle's low-voltage power supply and the module's built-in battery power supply are connected through the first selection circuit, and the switching trigger terminal of the first selection circuit is connected to the signal output terminal of the vehicle's low-voltage power supply, the first selection circuit switches to the module's built-in battery power supply after the vehicle's low-voltage power supply fails and has no signal output. This allows the module's built-in battery power supply to continuously send an unlocking control signal for a first preset duration (e.g., 10 minutes) or a high-voltage direct-drive signal for a second preset duration (e.g., 1 minute) to drive the door unlocking device to perform a forced door opening action, ensuring that the door unlocks even in the event of a low-voltage power supply failure. Since the module's built-in battery power supply and the aforementioned capacitor power supply are connected through a second selection circuit, and the switching trigger terminal of the second selection circuit is connected to the signal output terminal of the aforementioned capacitor power supply, the second selection circuit is triggered to switch to the aforementioned capacitor power supply after the module's built-in battery power supply fails and has no signal output. The capacitor power supply then starts working and can continuously send an unlocking control signal for a third preset duration (e.g., 10 seconds) or a high-voltage direct drive voltage signal for a fourth preset duration (e.g., 3 seconds) to the outside when both the vehicle's low-voltage power supply and the module's built-in battery power supply fail due to a vehicle collision. This ensures that the door can be unlocked when both the vehicle's low-voltage power supply and the module's built-in battery power supply fail. Attached Figure Description

[0034] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0035] To more clearly illustrate the technical solutions in the embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor under normal conditions according to an embodiment of the present disclosure is shown.

[0037] Figure 2 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor under collision conditions according to an embodiment of the present disclosure is shown.

[0038] Figure 3 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to another embodiment of the present disclosure is shown.

[0039] Figure 4 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to yet another embodiment of the present disclosure is shown.

[0040] Figure 5 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to another embodiment of the present disclosure is shown.

[0041] Figure 6 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to yet another embodiment of the present disclosure is shown, wherein (a) is a schematic diagram of a brittle light guide glass embedded in the front bumper; and (b) is a schematic diagram of a brittle light guide glass embedded in the rear bumper.

[0042] Figure 7 A schematic diagram illustrating the structure and signal transmission process of a control circuit module according to an embodiment of the present disclosure is shown.

[0043] Figure 8 The diagram schematically illustrates the relationship between the optical path on / off state timing and the corresponding trigger signal after a vehicle undergoes deformation according to an embodiment of the present disclosure.

[0044] Figure 9 A schematic diagram of the structure of a control circuit module according to another embodiment of the present disclosure is shown.

[0045] Figure 10 A schematic diagram of a multi-redundant power supply module according to an embodiment of the present disclosure is shown.

[0046] Figure 11 The diagram schematically illustrates the connection relationship and detection logic between the optical path section and the circuit control section in an optical distributed geometric deformation collision sensor according to an embodiment of the present disclosure.

[0047] Figure 12 The diagram illustrates the connection relationship between the sub-signals of multiple optical paths corresponding to the logic gate circuits according to an embodiment of the present disclosure in series or parallel mode to generate the total signal. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this disclosure. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without creative effort are within the scope of protection of this disclosure. In the embodiments of this disclosure, different embodiments, different structural components, and structural layers can be combined to form new embodiments. The term " / " in the document indicates "or".

[0049] The first exemplary embodiment of this disclosure provides an optically distributed geometric deformation collision sensor.

[0050] Figure 1 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor under normal conditions according to an embodiment of the present disclosure is shown. Figure 2 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor under collision conditions according to an embodiment of the present disclosure is shown. Figure 3 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to another embodiment of the present disclosure is shown. Figure 4 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to yet another embodiment of the present disclosure is shown. Figure 5 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to another embodiment of the present disclosure is shown. Figure 6 A schematic diagram of the structure of an optically distributed geometric deformation collision sensor in its normal state according to yet another embodiment of the present disclosure is shown, wherein (a) is a schematic diagram of a brittle light guide glass embedded in the front bumper; and (b) is a schematic diagram of a brittle light guide glass embedded in the rear bumper.

[0051] Reference Figures 1-5 and Figure 6As shown in (a) and (b), the optical distributed geometric deformation collision sensor provided in this embodiment includes an optical device 11 for transmitting optical path and a control circuit module 12. The control circuit module 12 is separately arranged from the optical device 11, and has an optical path connection with the optical device 11. For example, the optical path connection can be achieved through optical fiber.

[0052] The aforementioned optical device 11 is used to be installed inside the target body 101 in the vehicle that requires deformation monitoring.

[0053] In some embodiments, such as referring to Figure 1 As shown, the aforementioned optical device is a reflective optical path system consisting of multiple mirrors arranged along the geometric structure of the aforementioned target body.

[0054] In some embodiments, such as referring to Figures 3-5 As shown, the aforementioned optical device is a brittle light-guiding glass structure arranged along the geometry of the aforementioned target body, which is damaged or broken when subjected to impact force.

[0055] In some embodiments, such as referring to Figure 6 As shown in (a) and (b), the optical device includes a brittle light guide glass structure that is embedded in the geometry of the target body in a manner that is either fully or partially embedded, and is damaged or broken when subjected to impact force.

[0056] The control circuit module 12 described above includes a light source device 121, a light sensor device 122, and a controller 123. In some embodiments, the control circuit module may be a circuit board or chip integrating optoelectronic devices (including a light source device, a light sensor device, etc.). By integrating the light source device 121, the light sensor device 122, and the controller 123 into the control circuit module, the occupied area can be effectively reduced, the compactness can be improved, and the reliability risks caused by the external exposure of the connection lines between multiple discrete devices can be reduced.

[0057] by Figure 1 Taking the optical path transmission process corresponding to multiple reflectors as an example, it can be understood that, for a brittle light guide glass structure, the optical path is transmitted along the brittle light guide glass structure. The aforementioned light source device 121 generates and outputs an optical signal to the aforementioned optical device 11. After optical path transmission via the aforementioned optical device 11, the signal is output to the aforementioned photosensor device 122. The aforementioned photosensor device 122 determines the on / off state of the optical path based on the received optical signal information. The aforementioned controller 123 is connected to the aforementioned light source device 121 and the aforementioned photosensor device 122. When a predetermined degree of deformation causes the optical path on / off state to indicate that the optical path is disconnected, the controller 123 is triggered to control the unlocking of the vehicle door. The controller 123 is connected to both the light source device 121 and the photosensor device 122, for example, through a circuit connection.

[0058] For example, refer to Figure 2 As shown, the transmission and reception of the light source device 121 and the light sensor device 122 are corresponding, with one transmitted light signal corresponding to one received light signal; if the sensing result displayed in the light sensor device 122 for a certain transmitted light signal is: no received signal, the corresponding situation is: the light sensor device 122 has not received a light signal or the intensity of the light signal received by the light sensor is lower than the set threshold, then the corresponding optical path on / off state is optical path disconnection.

[0059] In some embodiments, the target body 101 where the optical device is deployed is a location that is prone to deformation during a collision, such as, but not limited to, at least one of the following locations on the vehicle: the upper edge of the engine compartment, the inside of the engine hood, the inside of the door, the inside of the bumper (e.g., at least one of the inside of the front bumper and the inside of the rear bumper).

[0060] In some embodiments, the optical device is positioned to match the geometry of the area to be monitored within the target body. For example, the optical device 11 includes a reflective optical path system composed of multiple mirrors arranged along the geometry of the target body. (Refer to...) Figure 1 As shown, a reflective optical path system composed of multiple reflectors is illustrated. The multiple reflectors are divided into two groups. One group consists of first reflectors whose placement positions match the geometry of the target body and are located at the edge (the matching here is reflected in the fact that the pattern formed by the lines connecting the placement points of this group of reflectors is related to the geometry of the target body, such as the first reflectors being dispersedly attached to the inner surface of the target body or being distributed along the inner surface of the target body). The other group consists of second reflectors located inside the target body, opposite to the first reflectors and staggered. The first and second reflectors together form a total internal reflection transmission link for the optical signal and output it along the reflector at the end of the optical path.

[0061] By setting the placement of optical devices to match the geometry of the monitored area within the target body, such as installing them in areas prone to collision deformation (including, but not limited to, the upper edge of the engine compartment, the inside of the hood, the inside of the doors, and the inside of the front and rear bumpers), comprehensive control of these easily deformable locations during collisions allows for all-round and all-area perception of the vehicle's geometric deformation caused by collisions from different directions, methods, and shapes. This enables the doors to be unlocked under various collision conditions, making it applicable to a wide range of scenarios and offering high safety.

[0062] In some embodiments, refer to Figure 1As shown, an integrated optical path input and output device 102 can also be deployed on / within the target body. The optical signal input and output ends (as components of the optical path) of the total internal reflection transmission link are provided by the aforementioned integrated optical path input and output device 102 and respectively connected (e.g., via optical fiber) to the light source device 121 (connected to the optical signal input end) and the light sensor device 122 (connected to the optical signal output end). For optical paths where the optical signal input and output positions are relatively fixed in a specific scenario, by setting up the integrated optical path input and output device 102, the stable positions of the optical path input and output and the reliable connection with the light source device 121 and the light sensor device 122 in the control circuit module can be effectively ensured. Furthermore, when the optical signal input and output positions change in vehicles of different sizes or application scenarios, it is not necessary to adjust the transmitting position of the light source device 121 (connected to the optical signal input end) or the receiving position of the light sensor device 122 in the control circuit module. Only the corresponding position or size-matched integrated optical path input and output device 102 needs to be adjusted and replaced.

[0063] In other embodiments, an integrated optical path input and output device may not be required. It is sufficient to ensure that the optical signal emitted by the light source device 121 can be transmitted to the optical device 11, and the optical signal output after transmission through the optical device 11 can be output to the photosensitive device 122. The above-described optical path layout is based on the normal state of the vehicle. When the vehicle collides and its geometry changes, it will affect the optical path, causing the normal optical path to be cut off or disconnected.

[0064] In other embodiments, the optical device includes a brittle optical guide glass structure arranged along the geometry of the target body, which breaks or fractures upon impact. The brittle optical guide glass structure is similar to an optical fiber, but with a larger diameter, thus lacking the flexibility of an optical fiber and possessing only the brittleness of a large piece of glass. This brittleness allows it to break or fracture upon impact, resulting in the interruption of the optical path. The aforementioned brittle optical guide glass structure is simple to install and has low cost, making it promising for a wide range of applications.

[0065] The layout of the brittle optical guide glass structure along the geometry of the target body is at least one of the following: Case 1, Case 2, Case 3, or Case 4.

[0066] In scenario one, refer to Figure 3 As shown, a complete brittle optical fiber structure 101 is arranged along the inner edge of the geometric structure of the target body 101, that is, the entire inner edge of the geometric structure, including the geometric corners, is arranged with a brittle optical fiber structure. Figure 3The diagram also illustrates the optical signal input terminal 111 and optical signal output terminal 112 of the brittle optical guide glass structure. The optical signal is input from the optical signal input terminal 111 to the brittle optical guide glass structure and transmitted along the overall layout of the brittle optical guide glass structure, and output through the optical signal output terminal 112. It can achieve sensitive detection even when the brittle optical guide glass structure undergoes geometric deformation due to a collision with the vehicle body. In this embodiment, the optical path, entirely composed of a brittle optical guide glass structure, has rigidity for the entire coverage area. Geometric deformation of the vehicle body can easily lead to the destruction of the rigid structure and the interruption of the optical path, resulting in high collision sensing sensitivity for various areas of the target body. However, the manufacturing, transportation, and installation difficulties of large-size, fully brittle optical guide glass structures are relatively high compared to subsequent scenarios two and three.

[0067] In scenario two, refer to Figure 4 As shown, multiple brittle optical fiber segments 11a and optical fibers 11b connecting the brittle optical fiber segments are arranged along the inner edge of the geometric structure of the target body 101. Figure 4 Multiple brittle optical fiber glass structure segments 11a cover not only the corners but also the edges to sense whether geometric deformation occurs in other areas of the edges; in this case, the total length of the brittle optical fiber glass structure segments is greater than the total length of the optical fiber. Figure 4 The diagram also illustrates a scenario where two brittle optical guide glass structure segments 11a, located at the beginning and end, respectively serve as an optical signal input terminal 111 and an optical signal output terminal 112. The optical signal is input from the optical signal input terminal 111 to the brittle optical guide glass structure segment and transmitted along the optical path formed by the optical fiber and the brittle optical guide glass structure segment, before being output via the optical signal output terminal 112. This allows for sensitive collision detection in the corresponding area when the brittle optical guide glass structure segment undergoes geometric deformation due to a vehicle collision. In this embodiment, since the brittle optical guide glass structure is no longer a single unit, the segmented layout and flexible (or soft) connection via optical fiber significantly reduce manufacturing, transportation, and installation difficulties. Furthermore, because the brittle optical guide glass structure segments constitute a larger proportion of the overall layout compared to the optical fiber, collision detection sensitivity in most areas is ensured.

[0068] In scenario three, refer to Figure 5 As shown, multiple brittle optical fiber segments 11a and optical fibers 11b connecting the brittle optical fiber segments are arranged along the inner edge of the geometric structure of the target body 101. Figure 5 Multiple brittle optical fiber glass structure segments 11a cover the corner positions, and adjacent brittle optical fiber glass structure segments 11a are flexibly connected by optical fibers 11b; in this case, the total length of the brittle optical fiber glass structure segments 11a is less than or equal to the total length of the optical fibers 11b. Figure 5 The diagram also illustrates a configuration where two optical fibers 11b located at the beginning and end of the optical structure serve as the optical signal input terminal 111 and the optical signal output terminal 112, respectively. The optical signal is input from the optical signal input terminal 111 to the optical fiber and transmitted along the optical path formed by the brittle optical guide glass structure segment and the optical fiber, before being output via the optical signal output terminal 112. This configuration enables sensitive detection of collisions in corresponding areas even when the brittle optical guide glass structure segment undergoes geometric deformation due to a vehicle collision. This deployment method offers flexible sensitivity distribution. In some scenarios, to avoid the optical path signal being interrupted due to the breakage of the brittle optical guide glass structure segment in a minor collision, optical fibers can be deployed in areas of geometric structure where detection is not required, while the brittle optical guide glass structure segment is deployed only in areas of geometric structure where detection is needed.

[0069] In scenario four, the aforementioned optical device includes a brittle optical guide glass structure embedded entirely or partially within the geometry of the target body 101, which breaks or fractures upon impact. The embedded arrangement is at least one of the following: a complete brittle optical guide glass structure embedded in the geometry of the target body 101; or, multiple brittle optical guide glass structure segments embedded in the geometry of the target body and optical fibers connecting the brittle optical guide glass structure segments. For example, see reference... Figure 6 As shown in (a) and (b), multiple brittle optical fiber segments 11a embedded in the corresponding plastic parts of the front and rear bumpers and optical fiber segments 11b connecting the brittle optical fiber segments are illustrated. Figure 6 The diagram also illustrates a scenario where two optical fibers 11b located at the beginning and end of the optical system serve as the optical signal input terminal 111 and the optical signal output terminal 112, respectively. The optical signal is input from the optical signal input terminal 111 to the optical fiber and transmitted along the optical path formed by the segments of the brittle optical guide glass structure and the optical fiber, before being output via the optical signal output terminal 112. In this embodiment, because an embedded deployment is used, an optical path connector (also called an optical path interface) is reserved externally after the corresponding optical device is embedded in the target body, for example in… Figure 6 The optical input interface 113 and optical output interface 114 shown in (a) and (b) are based on an embedded layout and are provided with optical input interface 113 and optical output interface 114 (the optical input interface 113 and optical output interface 114 can serve as the function of optical path input and output integrated device 102), which simplifies assembly and maintenance.

[0070] In the above embodiments, the multiple brittle optical glass structure segments can be identical, or the brittle optical glass structure segments at different locations can be adjusted to have different parameters such as thickness and strength. That is, the parameters of the multiple brittle optical glass structure segments follow a preset distribution state setting, so that the sensitivity corresponding to each location can be finely controlled.

[0071] In other embodiments, the reflector system and brittle light guide glass can be deployed separately for different target locations, and the configuration can be combined as needed based on the available space and ease of installation. For example, brittle light guide glass can be deployed along the upper edge of the engine compartment, and the reflector system can be deployed inside the hood; brittle light guide glass can also be deployed inside the doors, front and rear bumpers, etc. The specific deployment locations and the types of optical devices used can be adjusted according to actual conditions.

[0072] In the above embodiments, the optical distributed geometric deformation collision sensor mainly includes an optical path section and a control circuit section, for example in Figure 1 The optical path is illustrated by straight lines with arrows, and the optical fiber used to connect the optical device 11 and the control circuit module 12 is illustrated by curved arrows, thus achieving optical path connection between the two. This optical path connection enables the two parts to form a loop for sending, transmitting, and receiving optical signals. The optical path mainly includes a mirror system that is geometrically bound to the vehicle body structure. In locations where it is inconvenient to arrange a mirror system, an equivalent optical path can be constructed using a brittle optical guide glass structure that is geometrically bound to the vehicle body structure.

[0073] When the geometry of the area to be monitored in the target body is in a normal state, the light signal output by the light source device is normally transmitted to the light sensor device through the optical path of the optical device, and the corresponding optical path on / off state is "optical path unobstructed". In a collision state where the area to be monitored in the target body undergoes deformation exceeding a preset degree, the deformation causes at least one displacement or angular change (e.g., rotation) of some or all optical devices, resulting in a change in the transmission optical path that cannot be received by the light sensor or the intensity of the light signal received by the light sensor is lower than a set threshold, and the corresponding optical path on / off state is "optical path disconnected".

[0074] Combination Figures 1-6 It is understood that by separating the control circuit module from the optical components (or describing it as a distributed deployment) and connecting them based on the optical path (non-contact connection), and placing the optical components within the easily deformable target body, during a vehicle collision and deformation, only the layout of the optical components is affected or damage occurs, thus impacting the optical path. For example, in... Figure 2The system uses "√" to indicate a normally functioning optical link and "×" to indicate a normally functioning optical link. Deformation of the vehicle's geometry is reflected in the optical path connection status, indicating that the optical path is disconnected without affecting the normal operation of the control circuit module. This ensures the normal transmission of trigger signals, the normal issuance of control signals, and the effective execution of door unlocking.

[0075] Figure 7 A schematic diagram illustrating the structure and signal transmission process of a control circuit module according to an embodiment of the present disclosure is shown. Figure 8 The diagram schematically illustrates the relationship between the optical path on / off state timing and the corresponding trigger signal after a vehicle undergoes deformation according to an embodiment of the present disclosure.

[0076] Reference Figure 7 As shown, in some embodiments, the control circuit module 12 is used to be installed in a safe area of ​​the vehicle.

[0077] The light source device 121 can be a laser, and the light sensor device 122 is a sensor used to convert light signals into electrical signals, including but not limited to: photodiode, phototransistor, photodiode array, and photodetector.

[0078] In some embodiments, refer to Figure 7 As indicated by the solid line arrow, the controller 123 is used to connect to the door unlocking device 2.

[0079] When the vehicle is in normal operation, the controller 123 sends a light signal generation command to the aforementioned light source device 121 (e.g., a laser). The laser emits a light signal (e.g., in the form of a light beam), which is transmitted via optical fiber to the input end of the optical path section (including optical device 11, and may also include optical path input and output integrated device 102). If the light beam does not encounter any obstacles in the optical path, it is then transmitted via optical fiber from the output end of the optical path section to the light sensor 122 of the control section. The light sensor 122 continuously transmits the optical path on / off status to the controller. For example, see reference... Figure 8 As shown, during the time period t0 to t1, the vehicle is in a normal state. During this time period, the controller 123 in the control circuit module 12 controls the light source device 121 to generate and output light signals to the optical device 11 for transmission, and obtains the light path on / off state from the light sensor device 122. When the light path on / off state indicates that the light path is open, the light sensor device 122 sends a low-level signal "0" to the controller, that is, it does not send a door unlocking trigger signal to the controller 123. Correspondingly, the controller 123 continuously does not send an unlocking control signal to the door unlocking device.

[0080] When the optical path on / off state indicates that the optical path is disconnected, for example, refer to Figure 8 As shown, during the time period t1 to t2, the vehicle is in a collision state, which causes deformation of the geometric structure. Due to the influence of the optical path, the optical sensor 122 receives no signal. Therefore, the optical sensor sends a high-level signal "1" to the controller, that is, sends a door unlocking trigger signal to the controller 123. The controller 123 continuously sends an unlocking control signal to the door unlocking device 2.

[0081] As a parallel and backup control branch, in addition to directly sending unlocking control signals to the door unlocking device, if the door unlocking device is unable to receive or respond to the unlocking control signal due to a collision, the controller can also synchronously send unlocking control signals to the high-voltage direct drive module 124 to achieve forced door opening.

[0082] For example, continue to refer to Figure 7 As shown, the control circuit module 12, in addition to including a light source device 121, a light sensor device 122, and a controller 123, also includes a high-voltage direct-drive module 124 connected to the controller 123. (Refer to...) Figure 7 As shown by the dashed arrow and the wide dashed arrow, when the optical path is disconnected as indicated by the above-mentioned optical path on / off state, the controller 123 sends an unlocking control signal to the high-voltage direct drive module 124. The high-voltage direct drive module 124 outputs an unlocking drive voltage according to the unlocking control signal. The unlocking drive voltage is used to drive the door unlocking device 2 to perform a forced door opening action.

[0083] By setting up a high-voltage direct drive module connected to the controller, when the optical path is disconnected as indicated by the optical path on / off status indicator, the controller sends an unlocking control signal to the high-voltage direct drive module. The high-voltage direct drive module outputs an unlocking drive voltage according to the unlocking control signal to drive the door unlocking device to perform a forced door opening action. Even if the vehicle's low-voltage power supply fails during the collision, the door can still be quickly unlocked under the drive of the high-voltage direct drive module, ensuring that people can open the door and get out of the vehicle to escape the accident scene in time.

[0084] In the optical distributed geometric deformation collision sensor provided in the above embodiment, the light signal generated and output by the light source device is transmitted to the photosensitive device via the optical device, forming a transmission optical path. Since the optical device is used to install within the target body of the vehicle that needs to be deformed, once a collision occurs and the vehicle body is damaged and deformed, this deformation will cause the layout of the optical device to change synchronously. Specifically, it can be a change in displacement or angle, resulting in a synchronous and precise change in the transmission optical path. In this way, the vehicle body deformation is directly and accurately sensed and transmitted to the photosensitive device. When the light path is open, the photosensitive device does not send a trigger signal for unlocking the door to the controller. When the light path is closed, the photosensitive device sends a trigger signal to the controller to trigger the controller to control the unlocking of the door. This sensor can directly sense geometric deformation and trigger the door unlocking control, unlocking the door with the most direct (rather than a proxy variable) and shortest signal path, maximizing the safety of the occupants and effectively improving vehicle safety. Furthermore, the control circuit module and optical components are laid out separately and connected based on the optical path (non-contact connection). The optical components are placed inside the target body that is prone to deformation. During the vehicle collision deformation, only the layout of the optical components is affected or the optical components are damaged, which affects the optical path. This is reflected in the optical path on / off status, indicating that the optical path is disconnected without affecting the normal operation of the control circuit module. This ensures the normal transmission of trigger signals, the normal issuance of control signals, and the effective execution of door unlocking.

[0085] Figure 9 A schematic diagram of the structure of a control circuit module according to another embodiment of the present disclosure is shown.

[0086] In some embodiments, refer to Figure 9 As shown, the control circuit module 12 further includes a multi-redundant power supply module 125. The multi-redundant power supply module 125 includes a vehicle low-voltage power supply 1251 and a module-built-in battery power supply 1253. In some embodiments, by placing the control circuit module in a safe area of ​​the vehicle and integrating the multi-redundant power supply module into the control circuit module, stable and safe power supply, as well as control over the vehicle's basic performance and the unlockability of the doors (including command-controlled opening based on control signals, forced opening based on drive voltage, etc.), are ensured.

[0087] Among them, reference Figure 9 As shown in the dashed box, the vehicle low-voltage power supply 1251 and the module's built-in battery power supply 1253 are connected through a first selection circuit 1252. The switching trigger terminal of the first selection circuit 1252 is connected to the signal output terminal of the vehicle low-voltage power supply 1251. Figure 9Arrows are used to illustrate the switching trigger. When the vehicle's low-voltage power supply 1251 fails and has no signal output, the first selection circuit 1252 is triggered to switch to the module's built-in battery power supply 1253, which then starts operating. The stored energy of the module's built-in battery power supply supports: continuously sending an unlocking control signal for a first preset duration, or continuously sending a high-voltage direct-drive signal for a second preset duration to drive the door unlocking device 2 to perform a forced door opening action.

[0088] For example, in some embodiments, the first selection circuit 1252 described above uses a 2-to-1 selector (MUX), which is a two-input, single-output combinational logic circuit, essentially a two-way digital switch. It switches based on whether the signal from the vehicle's low-voltage power supply connected to the switching trigger is normal. (Refer to...) Figure 9 As shown, the first selection circuit has the following two states: ① In the first state, when the vehicle's low-voltage power supply signal is normal, the control signal at the switching trigger terminal is low by default, and the vehicle's low-voltage power supply 1251 is activated to power the light source device, the light sensor device, and the controller; ② In the second state, when the vehicle's low-voltage power supply signal is abnormal, the control signal at the switching trigger terminal is converted to high, and the module's built-in battery power supply 1253 is activated to power the light source device, the light sensor device, and the controller.

[0089] In some embodiments, the aforementioned multi-redundant power supply module is further provided with a power monitoring circuit, which is connected to the vehicle low-voltage power supply, the module's built-in battery power supply, and the controller, respectively, for monitoring the voltage information of the vehicle low-voltage power supply and the module's built-in battery power supply; and for transmitting a power fault signal to the controller when the power monitoring circuit determines that a power fault exists based on the monitored voltage information.

[0090] In some embodiments, refer to Figure 9 As shown, the aforementioned multi-redundant power supply module 125 further includes a capacitor power supply 1255. The module's built-in battery power supply 1253 and the capacitor power supply 1255 are connected via a second selection circuit 1254. The switching trigger terminal of the second selection circuit 1254 is connected to the signal output terminal of the capacitor power supply 1255. When the module's built-in battery power supply 1253 fails and has no signal output, the second selection circuit 1254 is triggered to switch to the capacitor power supply 1255, which then starts operating. The capacitor power supply's stored energy supports: continuously sending an unlock control signal for a third preset duration, or sending a high-voltage direct-drive signal for a fourth preset duration.

[0091] For example, in some embodiments, the second selection circuit 1254 described above uses a 2-to-1 selector (MUX), which is a two-input, single-output combinational logic circuit, essentially a two-way digital switch. It switches based on whether the signal from the vehicle's low-voltage power supply connected to the switching trigger terminal is normal. (Refer to...) Figure 9 As shown, the second selection circuit has the following two states: the third state, indicated by number ③: when the signal of the module's built-in battery power supply is normal, the control signal of the switching trigger terminal is low by default, the power supply of the module's built-in battery power supply 1253 is started and supplies power to the light source device, the light sensor device and the controller; the fourth state, indicated by number ④: when the signal of the module's built-in battery power supply is abnormal, the control signal of the switching trigger terminal is converted to high level, the power supply of the capacitor power supply 1255 is started and supplies power to the light source device, the light sensor device and the controller.

[0092] In some embodiments, the aforementioned multi-redundant power supply module is further provided with a power monitoring circuit. The power monitoring circuit is connected to the vehicle low-voltage power supply, the module's built-in battery power supply, the capacitor power supply, and the controller, respectively, and is used to monitor the voltage information of the vehicle low-voltage power supply, the module's built-in battery power supply, and the capacitor power supply. When the power monitoring circuit determines that a power fault exists based on the monitored voltage information, it transmits a power fault signal to the controller.

[0093] Figure 10 A schematic diagram of a multi-redundant power supply module according to an embodiment of the present disclosure is shown.

[0094] The multi-redundant power supply module 125 consists of three parallel branches: the vehicle low-voltage power supply 1251, the module's built-in battery power supply 1253, and the capacitor power supply 1255, used to connect the load. Figure 10In the example, a storage battery is used as the vehicle's low-voltage power supply 1251, a DC power supply is used as the module's built-in battery power supply 1253, and a large capacitor is used as the capacitor power supply 1255. The power supplies in all three branches are grounded. Short-circuit protectors (such as fuses) are also provided between the vehicle's low-voltage power supply 1251, the module's built-in battery power supply 1253, the capacitor power supply 1255, and the load. For example, a first short-circuit protector 12501 is connected between the vehicle's low-voltage power supply 1251 and the module's built-in battery power supply 1253; a second short-circuit protector 12502 is connected between the module's built-in battery power supply 1253 and the capacitor power supply 1255; a third short-circuit protector 12503 is connected between the vehicle's low-voltage power supply 1251 and the load; a fourth short-circuit protector 12504 is connected between the module's built-in battery power supply 1253 and the load; and a fifth short-circuit protector 12505 is connected between the capacitor power supply 1255 and the load. In the above circuit structure, the module's built-in battery power supply 1253 (e.g., a DC power supply) supplies power to the load while also charging the vehicle's low-voltage power supply 1251 (e.g., a battery) and capacitor power supply 1255 (e.g., a large capacitor). Due to the presence of a short-circuit protector, if a short circuit occurs in any of the parallel branches, that branch will automatically disconnect from the others, ensuring uninterrupted power supply to other branches. Since the vehicle's low-voltage power supply 1251, the module's built-in battery power supply 1253, and the capacitor power supply 1255 are three different power types, this heterogeneous redundancy in power module configuration helps improve the overall robustness of the power supply and its ability to handle risks. In some embodiments, refer to... Figure 10 As shown in the rightmost parallel branch, the large capacitor is connected to the load through the voltage regulator module 1257 to avoid the impact of voltage drop when the capacitor discharges.

[0095] In this embodiment, by setting up multiple redundant power supply modules, when any of the vehicle's low-voltage power supply, the module's built-in battery power supply, or the capacitor power supply has an incorrect voltage when the vehicle is not in a collision, the power monitoring circuit transmits a power fault signal to the controller. The controller locates the fault based on the power fault signal and can transmit the fault information to other systems in the vehicle (such as the display module or the voice prompt module) to remind the owner or maintenance personnel to perform maintenance, thereby realizing real-time monitoring of the power status and timely fault detection.

[0096] In the above embodiments, by setting a first selection circuit 1252 and a second selection circuit 1254 in the multi-redundant power supply module 125, the other normal power supplies can be immediately activated to drive the door unlocking when one or two of the multiple power supplies fail. Since the vehicle's low-voltage power supply and the module's built-in battery power supply are connected through the first selection circuit, and the switching trigger terminal of the first selection circuit is connected to the signal output terminal of the vehicle's low-voltage power supply, the first selection circuit is triggered to switch to the module's built-in battery power supply after the vehicle's low-voltage power supply fails and there is no signal output, so that the module's built-in battery power supply can start working. In the case of a vehicle collision causing the vehicle's low-voltage power supply to fail, the module's built-in battery power supply can continuously send an unlocking control signal for a first preset duration (e.g., 10 minutes) or continuously send a high-voltage direct-drive signal for a second preset duration (e.g., 1 minute) to drive the door unlocking device to perform a forced door opening action, so as to ensure that the door unlocking is driven in the case of a failure of the vehicle's low-voltage power supply. Since the module's built-in battery power supply and the aforementioned capacitor power supply are connected through a second selection circuit, and the switching trigger terminal of the second selection circuit is connected to the signal output terminal of the aforementioned capacitor power supply, the second selection circuit is triggered to switch to the aforementioned capacitor power supply after the module's built-in battery power supply fails and has no signal output. The capacitor power supply then starts working and can continuously send an unlocking control signal for a third preset duration (e.g., 10 seconds) or a high-voltage direct drive voltage signal for a fourth preset duration (e.g., 3 seconds) to the outside when both the vehicle's low-voltage power supply and the module's built-in battery power supply fail due to a vehicle collision. This ensures that the door can be unlocked when both the vehicle's low-voltage power supply and the module's built-in battery power supply fail.

[0097] Figure 11 The diagram schematically illustrates the connection relationship and detection logic between the optical path section and the circuit control section in an optical distributed geometric deformation collision sensor according to an embodiment of the present disclosure.

[0098] Reference Figure 11 As shown, the light source device 121 in the circuit control section uses a laser as an example. The controller 123 includes a logic circuit 1231. The optical signal output by the laser is split into two paths by the beam splitter 13. One optical signal is input to the logic circuit 1231 as a reference optical signal, and the other optical signal is input to the optical path section. For example, this optical path section is embedded in the circuit. The other optical signal is input to the optical path composed of the brittle optical guide glass structure segment and the optical fiber through the reserved optical input interface 113, and is output to the photosensitive device 122 through the optical output interface 114. Figure 11(Drawing omitted), the light sensor 122 sends the detection light signal to the logic circuit 1231 in the controller 123; the logic circuit 1231 is used to output a control signal according to the on / off state of the input reference light signal and the detection light signal. In some scenarios, when both the reference light signal and the output light signal are cut off, instead of outputting a collision detection signal, a fault code is output to indicate a fault in the detection light source device (laser in this example); in other scenarios, when the reference light signal is on and the output light signal is cut off, a collision detection signal is output; this signal is the trigger signal sent to the controller for unlocking the door, triggering the controller to unlock the door.

[0099] Figure 12 The diagram illustrates the connection relationship between the sub-signals of multiple optical paths corresponding to the logic gate circuits according to an embodiment of the present disclosure in series or parallel mode to generate the total signal.

[0100] In the embodiments of this disclosure, multiple sets of optical distributed geometric deformation collision sensors are deployed on the same target body, or one or more sets of optical distributed geometric deformation collision sensors are deployed on target bodies in different areas respectively; wherein the multiple sets of optical distributed geometric deformation collision sensors deployed on the same target body or target bodies in different areas are based on a common controller to perform logical operations on the receiving states of the optical signals corresponding to multiple optical paths to generate a total signal, and generate a control signal based on the total signal.

[0101] For example, in this embodiment, to improve the reliability of vehicle collision detection, multiple redundant optical paths are arranged. Depending on the actual vehicle collision sensitivity detection requirements, these multiple optical paths can be deployed in different components, such as the engine compartment, the upper edge of the engine compartment, inside the hood, inside the door, or inside the bumper; or they can be deployed in the same component. Using series or parallel logic among the multiple optical paths allows for different sensitivity settings. Combined with... Figure 11 and Figure 12 The diagram illustrates the scenario where three optical paths are connected in series or parallel mode based on logic gate circuits. This embodiment only illustrates a scenario where multiple optical paths each have independent light source devices. In other embodiments, multiple optical paths can share one or more of the same light source devices based on a beam splitting system. Combined with... Figure 11 and Figure 12 As shown, the connection relationship between each optical path section and the circuit control section can be referred to the above regarding... Figure 11The example describes how, in each optical path section, corresponding sub-signals are output based on logic gates, such as sub-signals A, B, and C in the example. These sub-signals are then processed by logic circuits to obtain the total signal Z. In series mode, if any one of the multiple optical paths is disconnected, it is considered that a collision has occurred, where the total signal Z = A&& ("&&" represents logical AND) B&& C. In parallel mode, if all optical paths in the multiple optical paths are disconnected, it is considered that a collision has occurred, where the total signal Z = A|| ("||" represents logical OR) B|| C.

[0102] In other embodiments, other modes can be set between multiple optical paths. For example, in voting mode, the result of logic circuit processing of multiple optical paths is the sub-signal result corresponding to most optical paths (e.g., optical path unobstructed or optical path disconnected), that is, the total signal Z = the value of more than half of the sub-signals.

[0103] The above example uses multiple optical paths, each with its own independent light source device. In other embodiments, multiple optical paths can share one or more of the same light source devices based on a beam splitting system.

[0104] A second exemplary embodiment of this disclosure provides a vehicle. The vehicle includes the optically distributed geometric deformation collision sensor provided in the first embodiment.

[0105] The aforementioned vehicles include, but are not limited to, one of the following types of vehicles: gasoline vehicles, range-extended electric vehicles, hybrid vehicles, electric vehicles, fuel cell vehicles (such as hydrogen fuel cell vehicles), or other types of vehicles.

[0106] In some embodiments, the optically distributed geometric deformation collision sensor described above includes one or more of the following:

[0107] The aforementioned optical device is a reflective optical path system composed of multiple mirrors arranged along the geometry of the target body; or,

[0108] The aforementioned optical device is a brittle optical guide glass structure arranged along the geometry of the target body, which is susceptible to damage or breakage upon impact; or,

[0109] The aforementioned optical devices include brittle optical guide glass structures that are embedded, either fully or partially, into the geometry of the target object, and are susceptible to breakage or fracture upon impact; or,

[0110] The aforementioned control circuit module is used to install in a safe area within the vehicle, and the target of the aforementioned optical device is at least one of the following locations on the vehicle: the upper edge of the engine compartment, the inside of the hood, the inside of the door, or the inside of the bumper; or,

[0111] The aforementioned sensor also includes: a multi-redundant power supply module; the multi-redundant power supply module includes: multiple heterogeneous target power supplies connected in parallel for connecting to the load to supply power; the target power supplies include: a vehicle low-voltage power supply, a module-integrated battery power supply, and a capacitor power supply; short-circuit protectors are provided between adjacent target power supplies and between target power supplies and the load; wherein, the module-integrated battery power supply supplies power to the load while also charging the vehicle low-voltage power supply and the capacitor power supply; or,

[0112] The aforementioned light source device is connected to the optical path input and output integrated device, and the aforementioned light sensor device is connected to the optical path input and output integrated device; or,

[0113] The aforementioned light source device is connected to a beam splitter. The reference light signal output from the first output terminal of the beam splitter is input to the logic circuit in the controller, and the detection light signal output from the second output terminal of the beam splitter is also input to the logic circuit in the controller. The logic circuit outputs a control signal based on the on / off state of the two inputs: the reference light signal and the detection light signal; or...

[0114] Multiple sets of optical distributed geometric deformation collision sensors are deployed on the same target body, or one or more sets of optical distributed geometric deformation collision sensors are deployed on target bodies in different areas respectively; wherein the multiple sets of optical distributed geometric deformation collision sensors deployed on the same target body or target bodies in different areas are based on a common controller to perform logical operations on the receiving status of the optical signals corresponding to multiple optical paths to generate a total signal, and generate a control signal based on the total signal.

[0115] During the collision deformation of the aforementioned vehicle, only the layout of the optical components is affected or damage is caused to the optical components, which affects the optical path and is reflected in the optical path on / off status indicator. The optical path is disconnected without affecting the normal operation of the control circuit module, ensuring the normal transmission of trigger signals, the normal issuance of control signals and the effective execution of door unlocking, so as to ensure that people can open the door and get out of the vehicle in time to escape from the accident scene.

[0116] More details of this embodiment can be found in the description of the first embodiment, which will not be repeated here.

[0117] It should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element. In the accompanying drawings or description, similar or identical parts are referred to by the same reference numerals. Implementations not illustrated or described in the drawings are those known to those skilled in the art. Moreover, the above definitions of elements are not limited to the various specific forms mentioned in the embodiments, and those skilled in the art can easily modify or substitute them. Additionally, while this article provides examples of parameters with specific values, it should be understood that the parameters need not be exactly equal to the corresponding values, but can approximate the corresponding values ​​within acceptable error tolerances or design constraints.

[0118] To achieve a clean and concise presentation, some commonly used structures and components may be depicted in simplified schematic diagrams in the accompanying drawings. Furthermore, some features in the accompanying drawings may be slightly enlarged or their scale or dimensions altered to facilitate understanding and viewing of the technical features of this disclosure, but this is not intended to limit the scope of this disclosure. The actual dimensions and specifications of products manufactured in accordance with the contents disclosed herein may be adjusted based on production needs, the characteristics of the product itself, and the content disclosed below.

[0119] The above description is merely a specific embodiment of this disclosure, enabling those skilled in the art to understand or implement it. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this disclosure. Therefore, this disclosure is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. An optically distributed geometric deformation collision sensor, characterized in that, include: Optical devices are used to be installed inside the target body of a vehicle that requires deformation monitoring. The control circuit module is separately arranged from the optical device, but has an optical path connection with the optical device; The control circuit module includes: a light source device, a light sensor device, and a controller; The light source device generates and outputs light signals to the optical device, which transmit the light signals through the optical path and output them to the photosensitive device. The photosensitive device determines the on / off state of the optical path based on the received light signal information. The controller is connected to the light source device and the photosensitive device. When a preset degree of deformation causes the on / off state of the optical path to indicate that the optical path is disconnected, the controller is triggered to unlock the car door.

2. The optical distributed geometric deformation collision sensor according to claim 1, characterized in that, The placement of the optical devices matches the geometry of the area to be monitored in the target body; In the target body, when the geometric structure of the area to be monitored is in a normal state, the light signal output by the light source device is normally output to the light sensor device through the optical path transmitted by the optical device, and the corresponding optical path on / off state is that the optical path is unobstructed. In a collision state where the area to be monitored in the target body undergoes deformation exceeding a preset degree, the deformation causes at least one displacement or angular change in some or all optical devices, resulting in a change in the transmission optical path and the optical signal that cannot be received by the optical sensor or the intensity of the optical signal received by the optical sensor is lower than a set threshold. The corresponding optical path on / off state is optical path disconnection.

3. The optical distributed geometric deformation collision sensor according to claim 1, characterized in that, The controller is used to connect to the door unlocking device. The controller has an unlocking control state. In the unlocking control state, the optical path on / off state indicates that the optical path is disconnected and the controller continuously sends an unlocking control signal to the door unlocking device.

4. The optical distributed geometric deformation collision sensor according to any one of claims 1-3, characterized in that, The control circuit module also includes: a high-voltage direct drive module connected to the controller; The high-voltage direct drive module has a forced unlocking state. In the forced unlocking state, the optical path on / off state indicates that the optical path is disconnected. The high-voltage direct drive module receives the unlocking control signal sent by the controller and outputs an unlocking drive voltage according to the unlocking control signal. The unlocking drive voltage is used to drive the door unlocking device to perform a forced door opening action.

5. The optical distributed geometric deformation collision sensor according to any one of claims 1-3, characterized in that, The control circuit module also includes: a multi-redundant power supply module; The multi-redundant power supply module includes: a vehicle low-voltage power supply and a module-built-in battery power supply. The vehicle's low-voltage power supply and the module's built-in battery power supply are connected through a first selection circuit. The switching trigger terminal of the first selection circuit is connected to the signal output terminal of the vehicle's low-voltage power supply. After the vehicle's low-voltage power supply fails and has no signal output, the first selection circuit is triggered to switch to the module's built-in battery power supply, which then starts working. The module's built-in battery power supply's stored energy supports: continuously sending an unlocking control signal for a first preset duration to the outside, or continuously sending a high-voltage direct-drive signal for a second preset duration to drive the door unlocking device to perform a forced door opening action.

6. The optical distributed geometric deformation collision sensor according to claim 5, characterized in that, The multi-redundant power module also includes a power monitoring circuit, which is connected to the vehicle's low-voltage power supply, the module's built-in battery power supply, and the controller, respectively. The power monitoring circuit monitors the voltage information of the vehicle's low-voltage power supply and the module's built-in battery power supply. If the power monitoring circuit determines that a power failure exists based on the monitored voltage information, it transmits a power failure signal to the controller.

7. The optical distributed geometric deformation collision sensor according to claim 5, characterized in that, The multi-redundant power supply module also includes: a capacitor power supply; The module's built-in battery power supply and the capacitor power supply are connected through a second selection circuit. The switching trigger terminal of the second selection circuit is connected to the signal output terminal of the capacitor power supply. After the module's built-in battery power supply fails and has no signal output, the second selection circuit is triggered to switch to the capacitor power supply, which then starts working. The stored energy of the capacitor power supply supports: continuously sending an unlock control signal for a third preset duration to the outside, or sending a high-voltage direct drive signal for a fourth preset duration.

8. The optical distributed geometric deformation collision sensor according to claim 7, characterized in that, The multi-redundant power supply module also includes a power monitoring circuit, which is connected to the vehicle's low-voltage power supply, the module's built-in battery power supply, the capacitor power supply, and the controller, respectively. The power monitoring circuit is used to monitor the voltage information of the vehicle's low-voltage power supply, the module's built-in battery power supply, and the capacitor power supply. If the power monitoring circuit determines that a power fault exists based on the monitored voltage information, it transmits a power fault signal to the controller.

9. The optical distributed geometric deformation collision sensor according to any one of claims 1-3, characterized in that, Includes one or more of the following: The optical device comprises a reflective optical path system consisting of multiple mirrors arranged along the geometry of the target body; or, The optical device includes a brittle optical glass structure arranged along the geometry of the target body, which breaks or fractures upon impact; wherein the arrangement is at least one of the following: a complete brittle optical glass structure is arranged along the inner edge of the geometry of the target body; or, multiple brittle optical glass structure segments and optical fibers connecting the brittle optical glass structure segments are arranged along the inner edge of the geometry of the target body. or, The optical device includes a brittle optical guide glass structure that is embedded in the geometry of the target body in a fully or partially embedded manner, and is damaged or broken when subjected to impact force. The embedded deployment includes at least one of the following: a complete brittle optical glass structure embedded in the geometry of the target body; or, multiple brittle optical glass structure segments embedded in the geometry of the target body and optical fibers connecting the brittle optical glass structure segments. or, The control circuit module is used to be installed in a safe area of ​​the vehicle, and the target of the optical device is at least one of the following locations of the vehicle: the upper edge of the engine compartment, the inside of the engine hood, the inside of the door, and the inside of the bumper. or, The control circuit module also includes: a multi-redundant power supply module; The multi-redundant power supply module includes: multiple heterogeneous target power supplies connected in parallel for connecting to the load to supply power; the target power supplies include: a vehicle low-voltage power supply, a module-built-in battery power supply, and a capacitor power supply; short-circuit protectors are provided between adjacent target power supplies and between target power supplies and the load; wherein, the module-built-in battery power supply supplies power to the load while also charging the vehicle low-voltage power supply and the capacitor power supply; or... The light source device is connected to the integrated optical input and output device, and the light sensor device is connected to the integrated optical input and output device; or... The light source device is connected to a beam splitter. A reference light signal output from the first output terminal of the beam splitter is input to the logic circuit in the controller. A detection light signal output from the second output terminal of the beam splitter is also input to the logic circuit. The logic circuit outputs a control signal based on the on / off state of the input reference light signal and the detection light signal; or... Multiple sets of optical distributed geometric deformation collision sensors are deployed on the same target body, or one or more sets of optical distributed geometric deformation collision sensors are deployed on target bodies in different areas respectively; wherein the multiple sets of optical distributed geometric deformation collision sensors deployed on the same target body or target bodies in different areas are based on a common controller to perform logical operations on the receiving status of the optical signals corresponding to multiple optical paths to generate a total signal, and generate a control signal based on the total signal.

10. A vehicle, characterized in that, The optical distributed geometric deformation collision sensor comprising any one of claims 1-9.

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