Power supply device for vehicle log recorders, vehicle log recorders, and solar-powered vehicle log recorders

Abstract

Power supply device (11, 11a, 11b) for a vehicle data recorder, characterized in that it comprises: a photovoltaic element (101); a first voltage stabilization unit (103) connected to the photovoltaic element (101); and an energy storage unit (105) connected to an output end of the first voltage stabilization unit (103); wherein the photovoltaic element (101) is configured to convert light energy into electrical energy and to output the electrical energy to the first voltage stabilization unit (103); the first voltage stabilization unit (103) is configured to convert the electrical energy input by the photovoltaic element (101) into a stable voltage and to charge the energy storage unit (105); and the energy storage unit (105) is configured to supply power to the vehicle trip recorder.

Description

Technical field

[0001] The present application relates to the field of automotive electronics, and in particular to a power supply device for a vehicle recording device, a vehicle recording device, and a solar-powered vehicle recording device. State of the art

[0002] Currently, most commercially available dashcams require a power supply from the vehicle's battery via a tether cable to ensure a continuous power source. The risks of this method include the potential for battery drain, rendering the vehicle unusable, a problem that can be more pronounced in combustion engine vehicles. Furthermore, the tether cable installation is cumbersome, significantly impacting the user experience. Content of the present application

[0003] Some embodiments of the present application provide a power supply device for a vehicle trip recorder, a vehicle trip recorder, and a solar-powered vehicle trip recorder to conveniently and continuously provide the energy required for the vehicle trip recorder.

[0004] According to one aspect, embodiments of the present application provide a power supply device for a vehicle data recorder. The power supply device comprises: a photovoltaic element; a first voltage stabilization unit connected to the photovoltaic element; and an energy storage unit connected to an output end of the first voltage stabilization unit; wherein the photovoltaic element is configured to convert light energy into electrical energy and output the electrical energy to the first voltage stabilization unit; the first voltage stabilization unit is configured to convert the electrical energy input by the photovoltaic element into a stable voltage and to charge the energy storage unit; and the energy storage unit is configured to supply power to the vehicle's trip recorder.

[0005] In some embodiments, the power supply device further includes: a first filter element connected to the photovoltaic element and configured to filter the electrical energy output by the photovoltaic element and output the filtered electrical energy to the first voltage stabilization unit; and a second filter element connected to the output end of the first voltage stabilization unit and configured to filter the voltage output by the first voltage stabilization unit and charge the energy storage unit.

[0006] In some embodiments, the photovoltaic element is a perovskite solar cell, the first voltage stabilization unit is a boost switching regulator, and the second filter element is an LC filter circuit.

[0007] In some embodiments, the photovoltaic element is a concentrating photovoltaic element, the first voltage stabilization unit is a digital maximum power point tracking boost controller, and the second filter element is an n-filter circuit.

[0008] In some embodiments, the photovoltaic element is a thin-film solar cell, the first voltage stabilization unit is a low-dropout linear regulator, and the second filter element is an electromagnetic interference filter.

[0009] In some embodiments, the photovoltaic element is a discrete photovoltaic cell unit, the first voltage stabilization unit is a Zener diode stabilization unit, and the second filter element is an RC filter circuit.

[0010] In some embodiments, the photovoltaic element is a dye-sensitized solar cell, the first voltage stabilization unit is a step-down regulator, and the second filter element is a digital filter.

[0011] In some embodiments, the power supply device further includes: a third filter element connected to the energy storage unit; and a second voltage stabilization unit connected to the third filter element; wherein the third filter element is configured to filter the voltage output by the energy storage unit and output the filtered voltage to the second voltage stabilization unit, and the second voltage stabilization unit is configured to convert the voltage filtered by the third filter element into a voltage usable by a gravity sensor or a main controller of the vehicle drive recorder.

[0012] In some embodiments, the power supply device further comprises a Schottky diode connected in series with the third filter element; a cathode of the Schottky diode is connected in series with a fourth filter element, and the fourth filter element is configured to filter the voltage converted by the second voltage stabilization unit and output the filtered voltage to the main controller of the vehicle drive recorder.

[0013] In some embodiments, if the vehicle trip recorder detects that the power supply from a power source of the vehicle to the vehicle trip recorder is interrupted, the energy storage unit is activated to supply power to the vehicle trip recorder.

[0014] According to another aspect, embodiments of the present application provide for a vehicle trip recorder that includes the power supply device according to one of the embodiments described above.

[0015] In some embodiments, a thermal insulation bracket is arranged between a PCBA of the vehicle drive recorder and the energy storage unit, and one side of the energy storage unit is covered with a foam.

[0016] According to another aspect, embodiments of the present application provide for a solar-powered vehicle trip recorder. The solar-powered vehicle trip recorder comprises: a case; a photovoltaic element (20) mounted on an outside of the housing (10); an energy storage element (30) which is arranged inside the housing (10) and electrically connected to the photovoltaic element (20); a main body (40) mounted on the housing (10), electrically connected to the energy storage element (30) and configured to record information about the environment of a vehicle; and a first voltage stabilization unit which is connected to the photovoltaic element (101) and is configured to convert the electrical energy input through the photovoltaic element (20) into a stable voltage and to charge the energy storage element (30).

[0017] In some embodiments, the housing has an external interface; and the main body comprises: a control module that is electrically connected to the energy storage element or the external interface; and a recording device that is electrically connected to the control module and configured to record information about the environment of a vehicle.

[0018] In some embodiments, the control module includes a switch sub-module, and the recording device is electrically connected to the switch sub-module; and the switch sub-module is configured to control the connection and disconnection between the recording device and the energy storage element; and / or the switch sub-module is configured to control the connection and disconnection between the recording device and the external interface.

[0019] In some embodiments, the main body further comprises a first sensing module, and the first sensing module is electrically connected to the external interface or control module; and the first sensing module is configured to sensing a power supply output voltage of the external interface, and the control module is configured to control the connection and disconnection between the recording device and the external interface and / or the connection and disconnection between the recording device and the energy storage element.

[0020] In some embodiments, the control module is configured to control the connection between the recording device and the external interface in a case where the power supply output voltage is greater than a first preset voltage; and / or the control module is further configured to control the disconnection between the recording device and the energy storage element in a case where the power supply output voltage is greater than the first preset voltage.

[0021] In some embodiments, the control module is configured to control the connection between the recording device and the energy storage element in a case where the power supply output voltage is less than or equal to the first preset voltage.

[0022] In some embodiments, the main body further comprises a second sensing module, and the second sensing module is electrically connected to the energy storage element or the control module; and the second sensing module is configured to sensing a capacitor output voltage of the energy storage element, and the control module is configured to control the connection and disconnection between the recording device and the energy storage element and / or the connection and disconnection between the recording device and the photovoltaic element.

[0023] In some embodiments, the control module is configured to control the connection between the recording device and the energy storage element in a case where the capacitor output voltage is greater than a second preset voltage; and / or the control module is further configured to control the connection between the recording device and the solar panel in a case where a voltage at two terminals of the energy storage element is greater than or equal to a third preset voltage.

[0024] In some embodiments, the housing further comprises a shell and a base rotatably connected to the shell, the energy storage element and the main body are mounted inside the shell, the photovoltaic element is mounted on the base, and the external interface is located on the base.

[0025] In some embodiments, a downwardly projecting structure is arranged on a lower edge of the housing.

[0026] According to the technical solutions provided by some embodiments of the present application above, the inconvenience of installing a suspension cable for the vehicle trip recorder is reduced, since the power supply is a built-in energy storage unit and not a conventional suspension cable available on the market, thus providing a better user experience. Furthermore, the photovoltaic element can convert light energy into electrical energy, which can then be supplied to the first voltage stabilization unit and converted into a stable voltage for the vehicle trip recorder, enabling it to serve as a power source for charging the vehicle trip recorder.In contrast to the prior art solution, which requires drawing power from the vehicle battery via the guy wire, leading to battery discharge, the technical solution provided by some embodiments of the present application can not only save power to the vehicle battery but also increase the battery's lifespan through the photovoltaic element. In summary, the technical solutions provided by some embodiments of the present application can conveniently and continuously supply the energy required for the vehicle trip recorder. Brief description of the drawing

[0027] To more clearly illustrate the technical solutions in the embodiments of the present application, the drawings necessary for describing these embodiments are briefly presented below. Obviously, the drawings in the following description represent only some embodiments of the present application. Those skilled in the art can also derive other drawings from these without inventive step. Fig. Figure 1 is a structural schematic representation of a power supply device for a vehicle trip recorder according to some embodiments of the present application. Fig. Figure 2 is a structural schematic representation of a power supply device for a vehicle trip recorder according to other embodiments of the present application. Fig. Figure 3 is a structural schematic representation of a power supply device for a vehicle trip recorder according to other embodiments of the present application. Fig. Figure 4 is a structural schematic representation of a power supply device for a vehicle trip recorder according to other embodiments of the present application. Fig. Figure 5 is a circuit diagram representation of a power supply device for a vehicle drive recorder, which outputs voltage to a main controller and a gravity sensor of the vehicle drive recorder, according to some embodiments of the present application. Fig. Figure 6 is a circuit diagram representation of a power supply device for a vehicle trip recorder, which outputs voltage to the vehicle trip recorder, according to some embodiments of the present application. Fig. Figure 7 is a structural schematic representation of an energy storage unit of a power supply device for a vehicle trip recorder, which is arranged in the vehicle trip recorder, according to some embodiments of the present application. Fig. Figure 8 is a power supply flow diagram of a solar-powered vehicle trip recorder according to some embodiments of the present application. Fig. Figure 9 is an internal structural schematic representation of a solar-powered vehicle trip recorder according to some embodiments of the present application. Fig. Figure 10 is an exploded structural schematic representation of a solar-powered vehicle trip recorder according to some embodiments of the present application. Fig. Figure 11 is a structural schematic representation of a solar-powered vehicle trip recorder according to some embodiments of the present application.

[0028] Explanation of reference numerals: 1, solar-powered vehicle trip recorder; 10, housing; 110, base; 120, casing; 130, external interface; 140, image capture interface; 150, protruding structure; 160, heat dissipation hole; 20, solar panel; 30, supercapacitor; 40, main body; 410, control module; 4110, switch sub-module; 41110, first terminal; 41120, second terminal; 41130, third terminal; 4120, controller; 420, first capture module; 430, recording device; 440, position module; 450, lens; 460, PCB assembly (PCBA); 470, display screen; 480, second capture module; 11a, power supply device for vehicle trip recorder; 101, photovoltaic element; 102, first filter element; 103, first voltage stabilization unit; 104, second filter element; 105, energy storage unit; 201, third filter element; 202, second voltage stabilization unit; 301, Schottky diode; 302, fourth filter element. Detailed description of the embodiments

[0029] The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the drawings in the embodiments of the present application, and it is clear that the described embodiments are only some of the embodiments of the present application and not all of them. Based on the embodiments in the present application, all other embodiments obtained by persons skilled in the art in this field without exercising an inventive step fall within the scope of the present application.

[0030] In this specification, adjectives such as "first" and "second" may only be used to distinguish one element or action from another, without necessarily requiring or implying any actual relationship or sequence of such action. Where circumstances permit, references to elements, components, or steps (etc.) should not be construed as referring to only one of the elements, components, or steps, but may refer to one or more of them.

[0031] In this specification, the dimensions of the various parts shown in the accompanying drawings are not drawn according to the actual proportional ratio, in order to facilitate description.

[0032] To clarify and make more understandable the objectives, technical solutions, and advantages of the present application, the present application is further described in detail below by reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein serve only to explain the present application and not to limit it.

[0033] Each specific technical feature described in the specific embodiments can be combined in any suitable way without contradiction; for example, different embodiments and technical solutions can be formed by combining various specific technical features. To avoid unnecessary repetition, the various possible combinations of each specific technical feature are not described separately in this application.

[0034] In the following description, the terms "first / second / ..." serve only to distinguish different objects and do not indicate any similarities or connections between each object. It should be understood that the directional descriptions involved, such as "up," "down," "outside," and "inside," are all directions in a normal state of use, and the "left" and "right" directions represent a left and a right direction, as shown in the specific corresponding schematic representations, which may or may not be the left and right directions in a normal state of use.

[0035] It should be noted that the terms "comprise," "include," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device containing a set of elements includes not only those elements but also other elements not expressly listed, or even elements inherent in such process, method, article, or device. Without further limitation, an element defined by the phrase "including one..." does not preclude the existence of another identical element in the process, method, article, or device containing the element. The term "several" or "a multitude of" means two or more.

[0036] Currently, the wake-up mode function of a known vehicle dashcam on the market requires a tethered power cable. This means that power must be drawn from the vehicle's battery via the tethered cable to supply the dashcam with electricity for an extended period to enable the wake-up mode function. While this method can implement the wake-up mode function, it carries the risk of easily draining the vehicle's battery and preventing the vehicle from starting, a problem that can be more pronounced in vehicles with internal combustion engines. Furthermore, installing the tethered cable is cumbersome, significantly impacting the user experience.

[0037] As a mobile vehicle device integrating optics, electronics, computing, and storage, a core mission of a vehicle dashcam is to clearly and reliably record the surroundings while the vehicle is moving and parked. Generally speaking, a vehicle dashcam can primarily comprise core functional modules such as an image capture module, a main control and processing module, a data storage module, and a sensor module. The image capture module is primarily responsible for capturing light outside the vehicle and converting it into a digital signal to create a video stream.The main control processing module is typically a main control chip and is primarily responsible for processing data (such as encoding and compression) received from an image sensor, executing system commands, running algorithms, controlling all peripheral devices, and finally writing the processed video data to the memory module. The data storage module serves as the storage unit and is primarily configured to store recorded video and image files. The sensor module is primarily configured to detect changes in vehicle acceleration, such as sudden acceleration, sudden braking, and collisions.

[0038] Based on the aforementioned functional modules, the wake mode can be understood as a set of low-power, event-triggered alert, and standby systems that can be activated by the vehicle's trip recorder after the vehicle has been switched off and the main system is in a sleep / rest state. The operation of the wake mode can be a precise and efficient cycle process, and the core idea of ​​the wake mode is to remain in a sleep state most of the time and only be instantly awakened at a critical moment. The specific operating process of the wake mode can be described as follows: 1) Entering a sleep / rest alert state: After the vehicle has been switched off, the main system of the vehicle's trip recorder can be completely shut down.At this point, the power consumption of the entire device can be reduced to an extremely low level, and only a "watchdog," which may include a small portion of circuitry such as a gravity sensor and a real-time clock (RTC), etc., needs to remain operational. In this case, the power supply unit consumes almost no power, but a sensor (G-sensor) can remain highly alerted and continuously monitor even the slightest vibration of the vehicle.2) Event Detection and Triggering: When an event occurs (for example, a nearby car door opens and hits the vehicle, someone tries to scratch the car body, or even a heavy object is blown by a strong wind and hits the vehicle), the gravity sensor can immediately detect an abnormal acceleration signal. An internal algorithm of the gravity sensor can then assess whether the vibration exceeds a preset threshold to distinguish it from normal road vibration. 3) Instant Wake-Up and Recording: Once an abnormal event is confirmed, the G-sensor can instantly wake the main control chip from deep sleep via an interrupt signal.The main control chip can quickly start the entire system within milliseconds: powering on the image capture module, loading the system, and starting video recording (which is typically a video of the period before and after the event). 4) Evidence preservation and return to sleep mode: After recording is complete, the system can separately seal the key video, power off the main system, return to the low-power sleep alert state as described in step 1), and wait for the next event trigger.

[0039] Since the wake mode is in an ultra-low power consumption sleep state most of the time, it may be possible to use a built-in battery or other energy storage unit, not necessarily with a large capacity, to supply power directly, instead of drawing power from a vehicle battery via a guy wire. This could essentially eliminate dependence on the vehicle battery. Specifically, to ensure the energy storage unit is inexhaustible, a solar panel can be used as a perpetual motion machine, and the solar panel can be integrated into the power supply device. Regardless of whether the vehicle is started or switched off, the solar panel can automatically recharge the built-in battery as long as the vehicle is parked in a location with light. Since the energy consumed (i.e., wake mode sleep state and occasional recording) is much less than the supplemental energy (i.e.,Solar energy and vehicle power supply ensure that the energy storage unit, such as the solar panel, remains near full charge year-round. The ultra-low-power design allows the battery to independently support standby mode for up to three months, even without recharging. A more detailed description follows.

[0040] A vehicle data recorder (VDR) is a device that can record relevant information, such as images and sound, during the driving process. Once installed, the VDR can record video and audio of the entire driving process and can provide evidence in the event of a traffic accident.

[0041] In everyday life, when a vehicle is parked on the side of the road, in a parking lot, or other public places, many vehicle owners hope that the vehicle's electronic data recorder (EDR) can continuously monitor the conditions around the vehicle. In the event of behavior such as scratching the vehicle or other damage, the EDR monitoring can provide on-site evidence. However, it is possible for the EDR to be damaged during use.

[0042] In current technology, when a vehicle's electrical system is shut down, no power can be supplied to a vehicle log recorder. Existing vehicle log recorders rely on a power supply method combining solar energy with a built-in storage battery to ensure continued operation after the vehicle is parked. However, the storage battery has a limited charge-discharge lifespan and is easily damaged after prolonged continuous use. Furthermore, if the vehicle is exposed to sunlight, the storage battery can swell, leak fluid, or even catch fire and explode in a high-temperature, enclosed environment, resulting in damage to the vehicle log recorder.

[0043] Some embodiments of the present application provide a power supply device 11a for a vehicle data recorder. A structural schematic representation of the power supply device 11a can be found in Fig. Figure 1 illustrates the power supply device 11a, which can mainly comprise a photovoltaic element 101, a first voltage stabilization unit 103 connected to the photovoltaic element 101, and an energy storage unit 105 connected to an output end of the first voltage stabilization unit 103, which are described below.

[0044] The photovoltaic element 101 can be configured to convert light energy into electrical energy and output the electrical energy to the first voltage stabilization unit 103.

[0045] The first voltage stabilization unit 103 can be configured to perform a voltage conversion on the electrical energy input by the photovoltaic element. That is, the first voltage stabilization unit 103 can be configured to convert the electrical energy into a voltage receivable by the energy storage unit 105 and to charge the energy storage unit 105.

[0046] The energy storage unit 105 can be configured to supply power to the vehicle trip recorder.

[0047] According to the power supply device for the vehicle trip recorder described above, which is in Fig. As illustrated in Figure 1, the power supply for the vehicle trip recorder is, firstly, a built-in energy storage unit, rather than a conventional guy wire, reducing the inconvenience of installing a guy wire for the user and thus providing a better user experience. Secondly, the photovoltaic element converts light energy into electrical energy, which is then fed to the voltage stabilization unit and converted into a stable voltage for the vehicle trip recorder, thus serving as a power source for charging the device.In contrast to the prior art solution, which requires drawing power from the vehicle battery via the guy wire, leading to battery discharge, the solution provided by the embodiments of the present application not only saves power to the vehicle battery but also extends its lifespan through the photovoltaic element. In summary, the solutions provided by the embodiments of the present application can conveniently and continuously supply the required energy to the vehicle trip recorder.

[0048] As in Fig. 2 shown, is Fig. 2 A structural schematic representation of a power supply device 11b for a vehicle data recorder according to some embodiments of the present application. In comparison to the power supply device as in Fig. As illustrated in Figure 1, the power supply device for the vehicle trip recorder in the present embodiments can further comprise a first filter element 102 connected to the photovoltaic element 101 and a second filter element 104 connected to an output end of the first voltage stabilization unit 103. The first filter element 102 can be configured to filter the electrical energy output by the photovoltaic element 101 and output the filtered electrical energy to the first voltage stabilization unit 103.

[0049] The second filter element 104 can be configured to filter the voltage output by the first voltage stabilization unit 103 and to charge the energy storage unit 105.

[0050] Considering that a perovskite solar cell has the property of charging efficiently in low light conditions, and that a step-up switching regulator can automatically increase or decrease the voltage to adapt to voltage fluctuations during the day, one embodiment of the present application can be the photovoltaic element 101, as shown in Fig. 1 or Fig. Figure 2 shows the perovskite solar cell, the first voltage stabilization unit 103 can be the step-up switching regulator, and the second filter element 104, as shown in Fig. Figure 2 shows an inductor-capacitor (LC) filter circuit. Since the perovskite solar cell itself has the characteristic of a lightweight design, its use as the photovoltaic element offers the advantage of high space utilization. Compared to a traditional solar panel, whose photoelectric conversion efficiency drops sharply in environments below -10 °C, the perovskite solar cell can still operate normally at -20 °C. Therefore, the perovskite solar cell can output a stable voltage even in harsh low-temperature environments.

[0051] Compared to traditional solar panels with a power output of approximately 150 W / m², concentrating photovoltaic cells exhibit a high power density. This means that the light intensity can be increased fivefold through lens concentration, and the power output per unit area can reach 300 W / m². 2As a further embodiment of the present application, the photovoltaic element 101, as in Fig. 1 or Fig. Figure 2 shows a concentrating photovoltaic element. The first voltage stabilization unit 103 can be a digital maximum power point tracking boost converter. The second filter element 104, as shown in Fig. Figure 2 shows a π-filter circuit. The concentrating photovoltaic element of the embodiments of the present application can exhibit the property of high power density, making it possible to ensure a power supply over long distances and making it very suitable for the vehicle trip recorder of a long-haul truck and a motorhome. A digital maximum power point tracking algorithm of the digital maximum power point tracking boost controller can automatically prevent sudden power drops caused by local shadows.

[0052] Since the output ripple of a low-dropout linear regulator can be less than 10 mV, an electromagnetic interference filter can suppress electronic interference in the vehicle (such as ignition noise). In contrast to a crystalline silicon battery, whose efficiency decreases by more than 20% at a high temperature of 60 °C, a thin-film solar cell can exhibit a very small efficiency decrease (only about 5%) at this temperature. To enable the vehicle trip recorder to be heat-resistant even when installed near an engine compartment, and to prevent power supply noise from affecting the image sensor, thus ensuring the absence of snowflake-like artifacts in a video from the vehicle trip recorder, a further embodiment of the present application can utilize the photovoltaic element 101, as described in Fig. 1 or Fig. Figure 2 shows the thin-film solar cell, the first voltage stabilization unit 103 can be the low-dropout linear regulator, and the second filter element 104, as shown in Fig. The electromagnetic interference filter shown in figure 2 may be used.

[0053] From a cost perspective, the unit price of a Zener diode stabilization unit and a resistor-capacitor (RC) filter circuit can be relatively low. A discrete photovoltaic cell unit can be embedded in a rearview mirror frame or rain sensor cover to implement a miniaturized deployment, which may have only a minor impact on the vehicle's appearance. Therefore, as a further embodiment of the present application, the photovoltaic element 101, as shown in Fig. 1 or Fig. 2 shown, a discrete photovoltaic cell unit, the first voltage stabilization unit 103 can be the Zener diode stabilization unit, and the second filter element 104, as shown in Fig. Figure 2 shows the RC filter circuit.

[0054] As a further embodiment of the present application, the photovoltaic element 101, as in Fig. 1 or Fig. Figure 2 shows a dye-sensitized solar cell, the first voltage stabilization unit 103 can be a step-down regulator or a step-down voltage regulator, and the second filter element 104, as shown in Fig. Figure 2 shows a digital filter. Since the dye-sensitized solar cell can be incorporated into a windshield film (which can have a light transmittance of more than 30%), it may be possible to provide an invisible power source for the vehicle's trip recorder. Therefore, it may be possible to solve the problem of unsightly wiring for the user without obstructing the driver's view. The digital filter's software can learn vehicle vibration modes (such as those encountered on bumpy roads), and a filter parameter can be optimized while dynamically eliminating load mutation noise.

[0055] The first filter element 102, as in Fig. 2 shown, can be a capacitor, and the voltage output by the first voltage stabilization unit 103 can be 4.56 volts, i.e. 4.56 V, so that it may be possible to satisfy a charge demand of the energy storage unit 105.

[0056] The power supply device for the vehicle trip recorder, as in Fig. As shown in Figure 2, it can further comprise a third filter element 201 connected to the energy storage unit 105 and a second voltage stabilization unit 202 connected to the third filter element 201. As shown in Fig. 3 shown, is Fig. 3 a structural schematic representation of a power supply device for a vehicle trip recorder according to other embodiments of the present application, which are described as follows.

[0057] The third filter element 201 can be configured to filter the voltage output by the energy storage unit 105 and output the filtered voltage to the second voltage stabilization unit 202.

[0058] The second voltage stabilization unit 202 can be configured to convert the voltage filtered by the third filter element 201 into a voltage usable by the gravity sensor 601 or by the main controller of the vehicle drive recorder.

[0059] It should be noted that the second voltage stabilization unit 202, as in Fig. Figure 3 shows a voltage regulator, which can be the first voltage stabilization unit 103, as shown in Fig. 1 or Fig. Figure 2 is similar. In some embodiments, the second voltage stabilization unit 202 can be the boost switching regulator, the digital maximum power point tracking boost regulator, the low-dropout linear regulator, the Zener diode stabilization unit, or a buck regulator, etc. Similarly, the third filter element 201 can be a filter element similar to the second filter element 104, as shown in Figure 2. Fig. Figure 2 is similar. In some embodiments, the third filter element 201 can be the LC filter circuit, the π filter circuit, the electromagnetic interference filter, the RC filter circuit, or the digital filter, etc.

[0060] The power supply device for the vehicle trip recorder, as in Fig. As shown in Figure 3, the circuit can further include a Schottky diode 301 connected in series with the third filter element 201. The cathode of the Schottky diode 301 can be connected in series with a fourth filter element 302. The fourth filter element 302 can be configured to filter the voltage converted by the second voltage stabilization unit 202 and output the filtered voltage to the main controller of the vehicle data recorder. As shown in Fig. 4 shown, is Fig. 4 A structural schematic representation of a power supply device for a vehicle trip recorder according to other embodiments of the present application. The fourth filter element 302 can be a filter element corresponding to the second filter element 104, as in Fig. 2 shown, or the third filter element 201, as in Fig. Figure 3 is similar. In some embodiments, the fourth filter element 302 can be the LC filter circuit, the π filter circuit, the electromagnetic interference filter, the RC filter circuit, or the digital filter, etc.

[0061] Since the power supply scenario of the vehicle dashcam can include a vehicle collision detection function and a time-lapse video recording function, the time-lapse video recording function can remain active and powered by the energy storage unit whenever no collision occurs, allowing the dashcam to record video. When a collision is detected, the collision detection function is triggered. Time-lapse video recording is a technology that can continuously record video at an extremely low frame rate (for example, 1 frame / second, 1 frame every 5 seconds) and then compress the video to a normal frame rate for playback.Collision detection is an intelligent protection technology that uses a sensor to detect a sudden impact and / or a change in vehicle acceleration, triggering a specific response. It can automatically lock and save the video at the point of the collision (to prevent it from being overwritten repeatedly). It is possible to configure the system in two scenarios: one where the time-lapse video recording function is disabled, and only the collision detection function is enabled; and another where the collision detection function is disabled, and only the time-lapse video recording function is enabled.In light of this, if the vehicle trip recorder provided by another embodiment of the present application detects that the power supply from the vehicle's power source to the vehicle trip recorder is interrupted, the energy storage unit can be activated to power the vehicle trip recorder. In some embodiments, a detection pin of the vehicle trip recorder's main control chip can detect whether the power supply from the vehicle's own power source to the vehicle trip recorder is interrupted. If the power supply from the vehicle's own power source to the vehicle trip recorder is interrupted, the detection pin of the main control chip can become low, and the main control chip can send a control signal to activate the energy storage unit 105 to power the vehicle trip recorder.

[0062] To better understand the power supply device for the vehicle trip recorder of the above embodiments, it is described below in combination with two scenarios.

[0063] Scenario 1: Power supply to the main controller of the vehicle data recorder. As shown in Fig. As shown in Figure 5, after the vehicle is switched off, the vehicle may enter collision detection mode, and the entire system may shut down and cease to function. The energy storage unit 105, as shown in Figure 5, is responsible for the following: Fig. 1 or Fig. 2 shown, output voltage can be obtained through a PWR connection, as shown in Fig. The currents shown in Figure 5 are filtered through a filter capacitor C35 and fed into U6. Here, the filter capacitor C35 can be an embodiment of the third filter element 201, as shown in Figure 5. Fig. 3 or Fig. 4 shown. U6 can be an embodiment of the second voltage stabilization unit 202, as shown in Fig. Figure 4 shows that in some embodiments, U6 can be the low-dropout linear regulator. The 3.3 V voltage converted by U6 can be connected via a VDD_RTC terminal, as shown in Fig. 5 shown, run through a capacitor C34 and are connected to a terminal PWBC_VBAT, as shown in Fig. Figure 5 is shown, and the output is used to power the gravity sensor 601 of the vehicle data recorder. The 3.3 V voltage converted by U6 can pass through a Schottky diode, be filtered by capacitors C39 and C36 connected in parallel, and be connected to the VDD_RTC terminal, as shown in Fig. Figure 5 shows the output being sent to an RTC port on the main controller of the vehicle time recorder. While ensuring the normal timekeeping of the main controller itself, the current consumption can be as low as 2 µA. The capacitors C39 and C36, connected in parallel, as shown in Fig. Figure 5 shows an embodiment of the fourth filter element 302, as shown in Fig. 4 is shown.

[0064] Scenario 2: Power supply for the vehicle's 601 gravity sensor. As mentioned above, in Fig. 5. The voltage of 3.3 V converted by U6 is passed through the VDD_RTC connection, as shown in Fig. 5 shown, run through capacitor C34 and are filtered from the PWBC_VBAT terminal, as shown in Fig. Figure 5 is shown. The 3.3 V output from the PWBC_VBAT connector can power the vehicle's 601 gravity sensor. As shown in Fig. As shown in Figure 6, U15 can be the gravity sensor 601 of the vehicle data recorder. If the vehicle is in danger of colliding, U15's PIN5 interrupt (INT) pin can continuously output a high level. Due to the charge and discharge characteristics of capacitor C102, this high level can only be output for 1 second, after which a low level is returned. The output high level can trigger the power supply pin of the vehicle data recorder's main controller, waking up the power supply, starting the device, and recording a 30-second video. The total current consumption of the gravity sensor 601 during operation can be as low as 95 µA. After recording is complete, the system can shut down and enter sleep mode to further reduce power consumption.

[0065] It should be noted that in collision detection mode, the entire device, as in Fig. 1 to Fig. Figure 4 shows that the energy storage unit 105 can have a power consumption of only 100 µA and can utilize a 380 mAh battery. This extremely low power consumption allows the battery to operate continuously for up to three months, even without recharging, when the vehicle's dashcam is not in use. When the vehicle is started, the energy storage unit 105 can be charged normally. When the vehicle is switched off, the energy storage unit 105 can be charged by the photovoltaic element 101. The energy storage unit 105 can be charged whether the vehicle is running or switched off, thus ensuring that it is always fully charged.In this way, the vehicle can remain in collision detection mode for a long time after being switched off, and the vehicle's trip recorder can record or capture an image as soon as a collision occurs.

[0066] Furthermore, in the power supply device, as in Fig. 1 to Fig. As described in section 4 above, the energy storage unit 105 can be a component or device with electrical energy storage, such as a battery or a capacitor, etc. A component and a unit, such as the photovoltaic element, the first filter element, the second filter element, the energy storage unit, and the first voltage stabilization unit, can be a specific device or a functional module comprising several devices.

[0067] Some embodiments of the present application may further provide a vehicle trip recorder. The vehicle trip recorder may include the vehicle collision detection power supply device according to the embodiments described above.

[0068] As in Fig. 1 to Fig. 4 and Fig. As shown in Figure 7, a thermal insulation bracket 401 can be arranged between the energy storage unit 105 and a printed circuit board assembly (PCBA) 460 of the vehicle data recorder, as depicted in one of the embodiments above. One side of the energy storage unit 105 can be covered with a foam 501. Since the energy storage unit 105 may be susceptible to problems such as swelling, fire, etc., caused by high temperatures, a thermal insulation and fire-resistant material bracket for the energy storage unit can be arranged in the embodiment of the present application to insulate the heat generated by the PCBA 460 of a main board, preventing the heat from being conducted to the battery. Furthermore, a battery cell with high-temperature properties can be used, capable of discharging at a high temperature of 85 °C.In structural terms, a foam space of 2.5 mm can be reserved for the swelling of the energy storage unit 105 for protection, so that it may be possible to solve the problem of a housing being damaged or the battery being damaged after the energy storage unit 105 has swollen.

[0069] Some embodiments of the present application can provide a solar-powered vehicle trip recorder 1. As described in Fig. 8 and Fig. As shown in Figure 9, the solar-powered vehicle trip recorder 1 can comprise a housing 10, a photovoltaic element 20 (e.g., a solar panel 20 or a solar cell plate 20), an energy storage element 30 (e.g., a supercapacitor 30), and a main body 40. The photovoltaic element 20 can be attached to an exterior surface of the housing 10. The energy storage element 30 can be located inside the housing 10. The energy storage element 30 can be electrically connected to the photovoltaic element 20. The main body 40 can be mounted on the housing 10. The energy storage element 30 can be electrically connected to the main body 40. The main body 40 can be configured to record information about the vehicle's surroundings. It should be understood by those skilled in the art that the energy storage element can be a component or system designed to store electrical energy and release it when needed.In some embodiments, the energy storage element may include, among other things, a supercapacitor, a battery, etc. The supercapacitor may have the following characteristics: It may be used in scenarios where stable operation in high-temperature or low-temperature environments is required. Alternatively, the supercapacitor may be used in the enclosed high-temperature environment of a vehicle after exposure to sunlight or in a cold outdoor environment. The supercapacitor may only need to store a small amount of electrical energy to support a device during nighttime operation. The supercapacitor may have a wide operating temperature range. The battery may have the following characteristics: It may have a high energy density and a large amount of energy stored per unit volume.The battery may be able to support longer operating times without sunlight. For the sake of simplicity, in the following embodiments of the present application, the supercapacitor 30 (as in the . Fig. Figures 8-11 are used as an example of the energy storage element to illustrate the solar-powered vehicle tachograph in the embodiments of the present application. It should be clear to those skilled in the art that in some embodiments, the energy storage element of the solar-powered vehicle tachograph 1 may refer to the energy storage unit 105, as described in one of the embodiments mentioned above. Furthermore, the photovoltaic element of the solar-powered vehicle tachograph 1 may refer to the photovoltaic element 101, as described in one of the embodiments mentioned above. In some embodiments, as in the Fig. As shown in 8-11, the photovoltaic element 101 can be a solar panel 20 or a solar cell plate 20.

[0070] In some embodiments, the solar-powered vehicle trip recorder 1 may further comprise a first voltage stabilization unit. The first voltage stabilization unit of the solar-powered vehicle trip recorder 1 may refer to the first voltage stabilization unit 103, as described in one of the embodiments mentioned above. The first voltage stabilization unit 103 may be connected to the photovoltaic element, such as the solar panel 20. The first voltage stabilization unit 103 may be configured to convert the electrical energy input from the photovoltaic element into a stable voltage and to charge the energy storage element, such as the supercapacitor 30.

[0071] Some embodiments of the present application aim to provide a solar-powered vehicle trip recorder, so that it may be possible to realize continuous monitoring and recording of the vehicle's surroundings, thereby reducing the possibility of damage to the vehicle trip recorder.

[0072] In some embodiments of the present application, the solar panel 20 can be configured to receive solar energy, convert the solar energy into electrical energy, and supply the electrical energy to the supercapacitor 30 to charge the supercapacitor 30. The supercapacitor 30 can store the electrical energy. The supercapacitor 30 can be electrically connected to the main body 40 to supply the main body 40 with power, enabling the solar-powered vehicle trip recorder 1 to operate normally. The supercapacitor 30 can have a large capacity and a high charge-discharge efficiency, and the vehicle may only need to receive solar energy for charging via the solar panel 20 during the day to maintain continuous operation of the solar-powered vehicle trip recorder 1 for 24 hours.The Supercapacitor 30 can operate over a relatively wide temperature range and can be used normally in both low-temperature and high-temperature enclosed environments exposed to sunlight without significant impact on performance. The Supercapacitor 30 offers the characteristics of a large number of charge-discharge cycles, a long service life, requires no maintenance or replacement, is safe and environmentally friendly, and is highly practical.

[0073] It should be noted that the supercapacitor 30 can store energy by polarizing electrolytes, and the charge-discharge process is reversible, which is a physical process and therefore not prone to fire or explosion. The supercapacitor 30 offers the advantages of high capacity, high charge-discharge efficiency, long lifespan, high safety, and a wide operating temperature range. Its wide operating temperature range allows it to withstand high temperatures and thus operate at elevated temperatures.

[0074] In some embodiments, the minimum operating temperature of the supercapacitor 30 can be -40 degrees Celsius, i.e., -40 °C. The maximum operating temperature of the supercapacitor 30 can reach 80 degrees Celsius, i.e., 80 °C.

[0075] In some embodiments, the number of charge-discharge cycles of the supercapacitor can reach 30 hundred thousand.

[0076] In some embodiments, the supercapacitor 30 can be an electrochemical double-layer supercapacitor.

[0077] It should be noted that an electrical connection, as described in some embodiments of the present application, can mean that at least one power transmission between two electrically connected components can be implemented; that is, a power supply can be implemented between the two components, but it is not limited to power transmission only. For example, data transmission between the two components can also be implemented.

[0078] In some embodiments of the present application, as described in the Fig. Figures 8-10 show the housing 10 having an external interface 130. The main body 40 can include a control module 410 and a recording device 430. The control module 410 can be electrically connected to the supercapacitor 30 or the external interface 130. The recording device 430 can be electrically connected to the control module 410. The recording device 430 can be configured to record information about the vehicle's environment.

[0079] In some embodiments of the present application, a vehicle power supply device or an external power supply can be electrically connected to the external interface 130. The external interface 130 can be electrically connected to the recording device 430, and the external interface 130 can supply power to the recording device 430, thus making it possible to ensure a stable power supply to the solar-powered vehicle trip recorder 1 when light, i.e., sunlight, is insufficient. The solar panel 20 can receive solar energy and convert it into electrical energy. The supercapacitor 30 can be electrically connected to the recording device 430, and the solar panel 20 can supply power to the recording device 430 via the supercapacitor 30, which can be energy-efficient and environmentally friendly.Different power supply methods may be suitable for different situations, thus improving the practicality of the product.

[0080] In some embodiments, the recording device 430 can be connected to the supercapacitor 30 via the control module 410.

[0081] In some embodiments, the recording device 430 can be connected to the external interface 130 via the control module 410.

[0082] In some embodiments, the recording device 430 can be connected simultaneously to the supercapacitor 30 and the external interface 130 via the control module 410.

[0083] In some embodiments, the control module 410 may have a connection terminal. The control module 410 can be electrically connected to the supercapacitor 30 and the external interface 130 via this connection terminal. That is, the control module 410 can be electrically connected to the supercapacitor 30 and the external interface 130 via the same connection terminal.

[0084] In some embodiments, the control module 410 can have a first terminal 41110 and a second terminal 41120. The first terminal 41110 can be electrically connected to the supercapacitor 30, and the second terminal 41120 can be electrically connected to the external interface 130. That is, the first terminal 41110 of the control module 410 can be electrically connected to the supercapacitor 30, and the second terminal 41120 of the control module 410 can be electrically connected to the external interface 130. The recording device 430 can be electrically connected to the control module 410, and the recording device 430 can be configured to be electrically connected to at least one of the supercapacitor 30 and the external interface 130 via the control module 410.

[0085] In some embodiments, the control module 410 can be configured to electrically connect at least one of the first terminal 41110 and the second terminal 41120 to the recording device 430, so that it may be possible to supply power to the recording device 430, and thus the recording device 430 can record information about the vehicle's environment.

[0086] In some embodiments, the control module 410 can be configured to optionally connect either the supercapacitor 30 to the recording device 430 via the first terminal 41110 or the external interface 130 to the recording device 430 via the second terminal 41120, so that it may be possible to supply power to the recording device 430.

[0087] In some embodiments of the present application, the control module 410 may comprise a switch submodule 4110. The recording device 430 may be electrically connected to the switch submodule 4110. The switch submodule 4110 may be configured to control the connection and disconnection between the recording device 430 and the supercapacitor 30; and / or the switch submodule 4110 may be configured to control the connection and disconnection between the recording device 430 and the external interface 130.

[0088] In some embodiments of the present application, the switch sub-module 4110 can automatically control the connection and disconnection between the recording device 430 and the external interface 130; and / or the switch sub-module 4110 can automatically control the connection and disconnection between the recording device 430 and the supercapacitor 30, thereby improving the intelligence of the product.

[0089] In some embodiments, the switch submodule 4110 can be a changeover switch. The connection and disconnection between the recording device 430 and the external interface 130 can be manually controlled by the changeover switch; and / or the connection and disconnection between the recording device 430 and the supercapacitor 30 can be manually controlled by the changeover switch.

[0090] In some embodiments of the present application, as in Fig. As shown in Figure 8, the main body 40 further comprises a first sensing module 420. The first sensing module 420 can be electrically connected to the external interface 130 or the control module 410. The first sensing module 420 can be configured to sensing a power supply output voltage of the external interface 130. The control module 410 can be configured to control the connection and disconnection between the recording device 430 and the external interface 130.

[0091] In some embodiments of the present application, the first sensing module 420 can sense the power supply output voltage of the external interface 130. The control module 410 can control the connection and disconnection between the recording device 430 and the external interface 130 according to the power supply output voltage of the external interface 130. When the recording device 430 is connected to the external interface 130, the external interface 130 can supply power to the recording device 430. When the recording device 430 is disconnected from the external interface 130, the external interface 130 cannot supply power to the recording device 430.

[0092] In some embodiments of the present application, as in Fig. As shown in Figure 8, the main body 40 further comprises a first sensing module 420. The first sensing module 420 can be electrically connected to the external interface 130 or the control module 410. The first sensing module 420 can be configured to sensing the power supply output voltage of the external interface 130. The control module 410 can be configured to control the connection and disconnection between the recording device 430 and the supercapacitor 30.

[0093] In some embodiments of the present application, the first sensing module 420 can sense the power supply output voltage of the external interface 130. The control module 410 can control the connection and disconnection between the recording device 430 and the supercapacitor 30 according to the power supply output voltage of the external interface 130. When the recording device 430 is connected to the supercapacitor 30, the supercapacitor 30 can supply power to the recording device 430. When the recording device 430 is disconnected from the supercapacitor 30, the supercapacitor 30 cannot supply power to the recording device 430.

[0094] It can be understood that the main body 40 is not limited to being arranged with the first sensing module 420. In some embodiments, the first sensing module 420 can be arranged without being attached to the main body 40, and a user can assess the power supply output voltage of the external interface 130.

[0095] In some embodiments of the present application, as in Fig. Figure 8 shows that the control module 410 is configured to control the connection between the recording device 430 and the external interface 130 when the power supply output voltage is greater than a first preset voltage.

[0096] In some embodiments of the present application, the external interface 130 can have a power supply output voltage, and the first detection module 420 can detect that the power supply output voltage of the external interface 130 is greater than the first preset voltage. The control module 410 can be configured to control the connection between the recording device 430 and the external interface 130 when the power supply output voltage is greater than the first preset voltage, so that the external interface 130 can supply power to the recording device 430, and this condition can correspond to a situation in which the vehicle is started.

[0097] In some embodiments, the first sensing module 420 can be a voltage sensing module and can be configured to sensing voltage. In some embodiments, the control module 410 can include a voltage-controlled switch module. When the power supply output voltage is greater than the first preset voltage, the voltage can reach a preset value. A control circuit within the switch module can detect a voltage change, and a circuit path can be closed by a switching element (such as a transistor, a relay, etc.) in the control circuit, allowing the recording device 430 to be connected to the external interface 130. That is, the connection between the recording device 430 and the external interface 130 can be controlled by the voltage-controlled switch module when the power supply output voltage is greater than the first preset voltage.

[0098] In some embodiments, the first preset voltage can be 0.

[0099] In some embodiments, the first preset voltage can be greater than 0, for example, the first preset voltage can be 1 volt, i.e., 1 V, or the first preset voltage can be 2 volts, i.e., 2 V.

[0100] In some embodiments of the present application, as in Fig. As shown in Figure 8, the control module 410 may further be configured to control the separation between the recording device 430 and the supercapacitor 30 when the power supply output voltage is greater than the first preset voltage.

[0101] In some embodiments of the present application, the external interface 130 can have a power supply output voltage, and the first detection module 420 can detect that the power supply output voltage of the external interface 130 is greater than the first preset voltage. The control module 410 can control the disconnection between the recording device 430 and the supercapacitor 30, so that the supercapacitor 30 cannot supply power to the recording device 430, and this state can correspond to a situation in which the vehicle is started. Only the vehicle power supply device can supply power to the recording device 430, and the supercapacitor 30 cannot supply power to the recording device 430, thus conserving charge in the supercapacitor 30.

[0102] In some embodiments, the control module 410 can include the voltage-controlled switch module. When the power supply output voltage is greater than the first preset voltage, the voltage can reach the preset value. The control circuit within the switch module can detect the voltage change, and the circuit path can be interrupted by the switching element (such as the transistor, relay, etc.) in the control circuit, thus disconnecting the recording device 430 from the supercapacitor 30. That is, the disconnection between the recording device 430 and the supercapacitor 30 can be controlled by the voltage-controlled switch module when the power supply output voltage is greater than the first preset voltage.

[0103] In some embodiments, the first preset voltage can be 0.

[0104] In some embodiments, the first preset voltage can be greater than 0, for example, the first preset voltage can be 1 volt, i.e., 1 V, or the first preset voltage can be 2 volts, i.e., 2 V.

[0105] In some embodiments of the present application, as in Fig. Figure 8 shows that the control module 410 is configured to control the connection between the recording device 430 and the supercapacitor 30 when the power supply output voltage is less than or equal to the first preset voltage.

[0106] In some embodiments of the present application, the first detection module 420 can detect that the power supply output voltage of the external interface 130 is less than or equal to the first preset voltage, that the power supply output voltage of the external interface 130 cannot reach a preset value, and the control module 410 can control the connection between the recording device 430 and the supercapacitor 30 so that the supercapacitor 30 can supply power to the recording device 430. This condition can correspond to a situation in which the vehicle is switched off, and the supercapacitor 30 can supply power to the recording device 430 so that the vehicle trip recorder can continue to operate after parking.

[0107] In some embodiments, the control module 410 can include the voltage-controlled switch module. If the power supply output voltage is less than or equal to the first preset voltage, the voltage may not reach the preset value. The control circuit within the switch module can detect the voltage change, and the circuit path can be closed by the switching element (such as the transistor, relay, etc.) in the control circuit, allowing the recording device 430 to be connected to the supercapacitor 30. That is, the connection between the recording device 430 and the supercapacitor 30 can be controlled by the voltage-controlled switch module when the power supply output voltage is less than or equal to the first preset voltage.

[0108] In some embodiments, the first preset voltage can be 0.

[0109] In some embodiments, the first preset voltage can be greater than 0, for example, the first preset voltage can be 1 volt, i.e., 1 V, or the first preset voltage can be 2 volts, i.e., 2 V.

[0110] In some embodiments of the present application, as in Fig. As shown in Figure 8, the main body 40 further comprises a second sensing module 480, and the second sensing module 480 can be electrically connected to the supercapacitor 30 or the control module 410. The second sensing module 480 can be configured to sensing a capacitor output voltage of the supercapacitor 30. The control module 410 can be configured to control the connection and disconnection between the recording device 430 and the supercapacitor 30.

[0111] In some embodiments of the present application, the second sensing module 480 can sense the capacitor output voltage of the supercapacitor 30, and the control module 410 can control the connection and disconnection between the supercapacitor 30 and the recording device 430 according to the capacitor output voltage. When the recording device 430 is connected to the supercapacitor 30, the supercapacitor 30 can supply power to the recording device 430. When the recording device 430 is disconnected from the supercapacitor 30, the supercapacitor 30 cannot supply power to the recording device 430.

[0112] In some embodiments of the present application, as in Fig. As shown in Figure 8, the main body 40 further comprises a second sensing module 480, and the second sensing module 480 can be electrically connected to the supercapacitor 30 or the control module 410. The second sensing module 480 can be configured to sensing the capacitor output voltage of the supercapacitor 30. The control module 410 can be configured to control a connection and disconnection between the recording device 430 and the solar panel 20.

[0113] In some embodiments of the present application, the second sensing module 480 can sense the capacitor output voltage of the supercapacitor 30, and the control module 410 can control the connection and disconnection between the supercapacitor 30 and the solar panel 20 according to the capacitor output voltage. When the recording device 430 is connected to the solar panel 20, the solar panel 20 can supply power to the recording device 430. When the recording device 430 is disconnected from the solar panel 20, the solar panel 20 cannot supply power to the recording device 430.

[0114] It can be understood that the main body 40 is not limited to being arranged with the second sensing module 480. In some embodiments, the second sensing module 480 can be arranged without being attached to the main body 40, and a user can assess the capacitor output power of the supercapacitor 30.

[0115] In some embodiments of the present application, as in Fig. Figure 8 shows that the control module 410 is configured to control the connection between the recording device 430 and the supercapacitor 30 when the capacitor output voltage is greater than a second preset voltage.

[0116] In some embodiments of the present application, the second detection module 480 can detect that the capacitor output voltage of the supercapacitor 30 is greater than the second preset voltage. That is, the capacitor output voltage of the supercapacitor 30 can reach a preset value, and the control module 410 can control the connection between the recording device 430 and the supercapacitor 30. This condition can correspond to a situation in which the supercapacitor 30 supplies power, and the supercapacitor 30 can power the recording device 430 together with the external interface 130, or it can power the recording device 430 alone, so that it may be possible to fully utilize solar energy, thereby reducing the power consumption of the vehicle power supply device.

[0117] In some embodiments, the second sensing module 480 can be a voltage sensing module configured to detect voltage. In some embodiments, the control module 410 can include the voltage-controlled switch module. When the capacitor output voltage is greater than the second preset voltage, the voltage can reach the preset value. The control circuit within the switch module can detect the voltage change, and the circuit path can be closed by the switching element (such as the transistor, relay, etc.) in the control circuit, allowing the recording device 430 to be connected to the supercapacitor 30. That is, the connection between the recording device 430 and the supercapacitor 30 can be controlled by the voltage-controlled switch module when the capacitor output voltage is greater than the second preset voltage.

[0118] In some embodiments, the second preset voltage can be 0.

[0119] In some embodiments, the second preset voltage can be greater than 0, for example, the second preset voltage can be 1 volt, i.e., 1 V, or the first preset voltage can be 2 volts, i.e., 2 V.

[0120] In some embodiments of the present application, as in Fig. As shown in Figure 8, the control module 410 may further be configured to control the connection between the recording device 430 and the solar panel 20 when a voltage at any two terminals of the supercapacitor 30 is greater than or equal to a third preset voltage.

[0121] In some embodiments of the present application, the second sensing module 480 can detect that the voltage at the two terminals of the supercapacitor 30 is greater than or equal to the third preset voltage. That is, when the supercapacitor 30 is fully charged, the control module 410 can control the connection between the solar panel 20 and the recording device 430 to supply power to the recording device 430 or directly supply power for use by the recording device 430, thereby fully utilizing the solar energy.

[0122] In some embodiments, the control module 410 can include the voltage-controlled switch module. When the voltage at the two terminals of the supercapacitor 30 is greater than or equal to the third preset voltage, the voltage can reach a preset value. The control circuit within the switch module can detect the voltage change, and the circuit path can be closed by the switching element (such as the transistor, relay, etc.) in the control circuit, so that the recording device 430 can be connected to the solar panel 20. That is, the connection between the recording device 430 and the solar panel 20 can be controlled by the voltage-controlled switch module when the voltage at the two terminals of the supercapacitor 30 is greater than or equal to the third preset voltage.

[0123] In some embodiments, the third preset voltage can be a nominal voltage of the supercapacitor 30.

[0124] In some embodiments of the present application, as in Fig. As shown in Figure 8, the control module 410 may further be configured to control the separation between the recording device 430 and the solar panel 20 when the voltage at the two terminals of the supercapacitor 30 is less than the third preset voltage.

[0125] In some embodiments of the present application, the second detection module 480 can detect that the voltage at the two terminals of the supercapacitor 30 is lower than the third preset voltage. That is, if the supercapacitor 30 is not fully charged, the control module 410 can control the disconnection between the recording device 430 and the solar panel 20, and the solar panel 20 can charge the supercapacitor 30 so that the electrical energy received by the solar panel 20 and converted from solar energy can be stored in the supercapacitor 30.

[0126] In some embodiments, the control module 410 can include the voltage-controlled switch module. When the voltage at the two terminals of the supercapacitor 30 is less than the third preset voltage, the voltage can reach the preset value. The control circuit within the switch module can detect the voltage change, and the circuit path can be interrupted by the switching element (such as the transistor, relay, etc.) in the control circuit, thus disconnecting the recording device 430 from the solar panel 20. That is, the disconnection between the recording device 430 and the solar panel 20 can be controlled by the voltage-controlled switch module when the voltage at the two terminals of the supercapacitor 30 is less than the third preset voltage.

[0127] In some embodiments of the present application, as in Fig. Figure 8 shows that the control module 410 includes a controller 4120, which is electrically connected to the switch sub-module 4110. The first connection terminal 41110 and the second connection terminal 41120 can each be located on the switch sub-module 4110. The controller 4120 can send a switching instruction to the switch sub-module 4110.

[0128] In some embodiments of the present application, the controller 4120 can send the switching instruction to the switch submodule 4110 to control the switch submodule 4110, to connect the second terminal 41120 to the recording device 430, or to disconnect the second terminal 41120 from the recording device 430. The controller 4120 can further send the switching instruction to the switch submodule 4110 to control the switch submodule 4110, to connect the first terminal 41110 to the recording device 430, or to disconnect the first terminal 41110 from the recording device 430. The controller 4120 can send the switching instruction to automatically control the switching of a power supply mode without manual intervention, thereby enhancing the product's intelligence.

[0129] In some embodiments, the switch submodule 4110 can be a relay. The controller 4120 can control whether a first relay and a second relay are electrically connected to or disconnected from the recording device 430. When the controller 4120 detects that the external interface 130 is energized, the controller 4120 can send the switching instruction, energize one coil of the first relay, and electrically connect the first relay to the recording device 430 so that the supercapacitor 30 can supply power to the recording device 430. Conversely, de-energize one coil of the second relay, disconnecting the second relay from the recording device 430.When the controller 4120 detects that there is no voltage at the external interface 130, the controller 4120 can send the switching instruction. The coil of the second relay can be energized, and the second relay can be electrically connected to the recording device 430, so that the external interface 130 can supply power to the recording device 430. The coil of the first relay can be de-energized, so that the first relay can be disconnected from the recording device 430.

[0130] In some embodiments of the present application, the control module 410 can have a first state and a second state. When the control module 410 is in the first state, the first terminal 41110 can be electrically connected to the recording device 430, so that the supercapacitor 30 can supply power to the recording device 430, and the second terminal 41120 can be disconnected from the recording device 430. When the control module 410 is in the second state, the second terminal 41120 can be electrically connected to the recording device 430, so that the external interface 130 can supply power to the recording device 430, and the first terminal 41110 can be disconnected from the recording device 430.

[0131] In some embodiments of the present application, the control module 410 can have a first state and a second state. When the control module 410 is in different states, the supercapacitor 30 or the external interface 130 can supply power to the recording device 430, which can be flexible in application.

[0132] In some embodiments, if the light is insufficient, there may not be enough solar energy available to be converted into electrical energy to charge the supercapacitor 30, the control module 410 may be in the second state, and the external interface 130 may supply power to the recording device 430. If the light is sufficient, the solar panel 20 may receive solar energy to charge the supercapacitor 30, the control module 410 may be in the first state, and the supercapacitor 30 may supply power to the recording device 430.

[0133] In some embodiments of the present application, when the vehicle is switched off, the control module 410 can be in the first state. When the vehicle is started, the control module 410 can be in the first state, in the second state, or simultaneously in the first and second states.

[0134] In some embodiments of the present application, when the vehicle is switched off, the control module 410 can be in the first state. That is, the first terminal 41110 can be connected to the recording device 430, the second terminal 41120 can be disconnected from the recording device 430, the supercapacitor 30 can supply power to the recording device 430, and the external interface 130 can be disconnected from the recording device 430. When the vehicle is started, the control module 410 can be in the second state.This means that the second terminal 41120 can be connected to the recording device 430, the vehicle power supply device can supply power to the power supply device via the external interface 130, the first terminal 41110 can be disconnected from the recording device 430, and the supercapacitor 30 can adjust the power supply to the recording device 430 to implement continuous operation of the vehicle trip recorder. The control module can switch the power supply mode according to the vehicle's state, which can be quite practical. In some embodiments of the present application, the control module 410 can have a third state.When the control module 410 is in the third state, both the first terminal 41110 and the second terminal 41120 can be electrically connected to the recording device 430, so that both the supercapacitor 30 and the vehicle recording device can supply power to the recording device 430.

[0135] In some embodiments of the present application, when the control module 410 is in the third state, both the supercapacitor 30 and the external interface 130 can supply power to the recording device 430. Since the current requirement for the operation of the vehicle trip recorder is fixed, supplying power through both the supercapacitor 30 and the external interface 130 can reduce the power consumption of the vehicle power supply device and thus save energy.

[0136] In some embodiments of the present application, the control module 410 can have the second state. When the control module 410 is in the second state, the second terminal 41120 can be electrically connected to the recording device 430, so that the external interface 130 can supply power to the recording device 430, and the first terminal 41110 can be disconnected from the recording device 430.

[0137] In some embodiments of the present application, the control module 410 can have a second and a third state. When the control module 410 is in the third state, both the external interface 130 and the supercapacitor 30 can supply power to the recording device 430. When the control module 410 is in the second state, the external interface 130 can supply power to the recording device 430, and the supercapacitor 30 cannot. The user can select whether or not the supercapacitor 30 supplies power to the recording device 430 based on its state of charge.

[0138] In some embodiments of the present application, if the vehicle is in a started state and the second sensing module 480 detects that the supercapacitor 30 is fully charged, the control module 410 may be in the third state. If the vehicle is in a started state and the second sensing module 480 detects that the supercapacitor 30 is not fully charged, the control module 410 may be in the second state.

[0139] In some embodiments of the present application, when the supercapacitor 30 is fully charged, the control module 410 can control both the supercapacitor 30 and the external interface 130 to supply power to the recording device 430. When the supercapacitor 30 is not fully charged, the control module 410 can prevent the supercapacitor 30 from supplying power to the recording device 430, thus allowing the supercapacitor 30 to retain more energy / power for use in the vehicle trip recorder after the vehicle is switched off. The second sensing module 480 can detect the state of charge in the supercapacitor 30 and send a detection signal to the control module 410, which can then control a connection in the power supply circuit. The product can be intelligent and offer a good user experience.

[0140] It can be understood that the control module 410 is not limited to controlling whether the supercapacitor 30 supplies power to the recording device 430 when the supercapacitor 30 is fully charged. In some embodiments, when the vehicle is in the started state, the supercapacitor 30 can supply power to the recording device 430 even if the supercapacitor 30 is not fully charged.

[0141] In some embodiments of the present application, the control module 410 may have a third terminal 41130 which is electrically connected to the supercapacitor 30. The third terminal 41130 may be located on the switch submodule 4110. The control module 410 may have a fourth and a fifth state. When the control module 410 is in the fourth state, the third terminal 41130 may be electrically connected to the external interface 130, and the external interface 130 may charge the supercapacitor 30. When the control module 410 is in the fifth state, the third terminal 41130 may be disconnected from the external interface 130.

[0142] In some embodiments of the present application, when the control module 410 is in the fourth state, the control module 410 can control the third terminal 41130 to be electrically connected to the external interface 130, and the external interface 130 can charge the supercapacitor 30. When the control module 410 is in the fifth state, the control module 410 can control the third terminal 41130 to be disconnected from the external interface 130, and the external interface 130 cannot charge the supercapacitor 30. The control module 410 can be in either the fourth or the fifth state, so that the vehicle power supply device can charge the supercapacitor 30 or not, depending on the situation, which can be flexible in application.

[0143] In some embodiments, when the vehicle is switched off, the control module 410 may be in the fifth state, and the external interface 130 may not charge the supercapacitor 30.

[0144] In some embodiments of the present application, the main body 40 may further comprise a third sensing module that is electrically connected to the control module 410. When the vehicle is in the started state and the third sensing module detects that the solar panel 20 has an output voltage, the control module 410 may be in the fifth state. When the vehicle is in the started state and the third sensing module detects that there is no output voltage at the solar panel 20, the control module 410 may be in the fourth state.

[0145] In some embodiments of the present application, when the vehicle is in the started state and solar energy is insufficient, the solar panel 20 cannot charge the supercapacitor 30. The third sensing module can detect that there is no output voltage at the solar panel 20 and can send the detection signal to the control module 410. The control module 410 can electrically connect the third terminal 41130 to the external interface 130, and the external interface 130 can charge the supercapacitor 30. When solar energy is sufficient, the solar panel 20 can receive solar energy to charge the supercapacitor 30. The third sensing module can detect that the solar panel 20 has an output voltage and can send the detection signal to the control module 410.The control module 410 can disconnect the third connection 41130 from the external interface 130, and the external interface 130 cannot charge the supercapacitor 30. If the light is insufficient, the supercapacitor 30 can also serve as a power source and supply power to the recording device 430 after the vehicle is switched off, allowing the vehicle trip recorder to continue operating, which has a wide range of applications.

[0146] It can be understood that the present application is not limited to being arranged with the third sensing module. In some embodiments, the main body 40 can be arranged without the third sensing module, and the solar panel 20 can charge the supercapacitor 30, and the external interface 130 can also charge the supercapacitor 30.

[0147] In some embodiments, the controller 4120 can send a corresponding control instruction to the control module 410 to control whether the third terminal 41130 is electrically connected to or disconnected from the external interface 130. The external interface 130 can charge the supercapacitor 30 when the external interface 130 is electrically connected to the third terminal 41130.

[0148] In some embodiments, the control module 410 of the main body 40 may not be arranged with the controller 4120. A control switch may be arranged on an external surface of the solar-powered vehicle data recorder 1. The switch submodule 4110 can be manually switched by the control switch.

[0149] In some embodiments of the present application, as in Fig. 9 and Fig. As shown in Figure 10, the main body 40 can further include a carrier plate, and a connecting circuit of the control module 410 can be integrated on the carrier plate to form a printed circuit board assembly (PCBA) 460, and the PCBA 460 can be mounted inside the housing 10.

[0150] In some embodiments of the present application, as in Fig. 9 and Fig. As shown in Figure 10, a front opening is defined on the housing 10. The main body 40 can further include a display screen 470 and a lens 450. The lens 450 can be mounted according to the front opening and can be electrically connected to the PCBA 460. The display screen 470 can be positioned opposite the lens 450 and can be connected and fixed to the housing 10. The display screen 470 can be electrically connected to the PCBA 460. The supercapacitor 30 and the PCBA 460 can both be positioned between the display screen 470 and the lens 450. The lens 450 can be fixedly mounted on the PCBA 460. The supercapacitor 30 can be fixedly mounted on the PCBA 460. The supercapacitor 30 can be positioned next to or near the lens 450.The lens 450, the supercapacitor 30, the PCBA 460, and the display screen 470 can be reasonably arranged in a total space of the housing 10, so that the overall structure of the vehicle drive recorder can be compact and aesthetically pleasing.

[0151] In some embodiments, the display screen 470 can be an OLED display screen 470.

[0152] In some embodiments of the present application, as described in the Fig. As shown in Figures 9-11, the housing 10 further comprises a shell 120 and a base 110, which is rotatably connected to the shell 120. The supercapacitor 30 and the main body 40 can be mounted inside the shell 120. The solar panel 20 can be mounted on the base 110.

[0153] In some embodiments of the present application, the casing 120 and the base 110 can be rotatably connected to adjust the angle of the casing 120 relative to the base 110. By rotating the casing 120 relative to the base 110, a recording angle for the solar-powered vehicle data recorder 1 or an angle for receiving sunlight can be set.

[0154] In some embodiments of the present application, the base 110 may have a structure that is attached to the vehicle, and the recording angle of the solar-powered vehicle trip recorder 1 may be adjusted by rotating the casing 120.

[0155] In some embodiments of the present application, the casing 120 can have a structure that is attached to the vehicle. When the base 110 is rotated, the solar panel 20 can also rotate with the base 110 to receive sunlight at different angles of irradiation, which may be applicable to various environments.

[0156] In some embodiments, as in the Fig. Figures 9-11 show the base 110 positioned above the shell 120. The external interface 130 can be defined on the base 110.

[0157] In some embodiments of the present application, the housing 10 may further comprise a rotating shaft, and the base 110 may be rotatably connected to the shell 120 via the rotating shaft.

[0158] In some embodiments of the present application, as in Fig. 9 and Fig. Figure 10 shows the main body 40 comprising a position module 440, which is mounted inside the base 110. The position module 440 can be electrically connected to the main body 40.

[0159] In some embodiments of the present application, the position of the vehicle can be positioned in real time via the position module 440 to provide position information for the solar-powered vehicle trip recorder 1.

[0160] In some embodiments of the present application, the position module 440 may be a GPS component and / or a Beidou navigation system component.

[0161] In some embodiments of the present application, as described in the Fig. As shown in 9-11, a groove is defined on the top side of the base 110. The solar panel 20 can be attached in the groove.

[0162] In some embodiments of the present application, the solar panel 20 can be arranged in the groove, which can provide protection for the solar panel 20.

[0163] In some embodiments, the depth of the groove can be greater than or equal to the thickness of the solar panel 20, making the product appear more aesthetically pleasing.

[0164] In some embodiments of the present application, as in Fig. Figure 9 shows a heat dissipation hole 160 defined on the bottom of the housing 10.

[0165] In some embodiments of the present application, the heat dissipation hole 160 can be arranged at the bottom of the housing 10, so that dust and dirt cannot easily enter the interior of the housing 10 through the heat dissipation hole 160.

[0166] In some embodiments there may be one or more heat dissipation holes 160.

[0167] In some embodiments of the present application, as in Fig. Figure 9 shows that the heat dissipation hole 160 is located below the supercapacitor 30, the lens 450, and the PCBA 460. The supercapacitor 30, the lens 450, and the PCBA 460 can be the main heat-generating components of the solar-powered vehicle trip recorder 1. The heat dissipation hole 160 can be located below the supercapacitor 30, the lens 450, and the PCBA 460, which can provide good heat dissipation.

[0168] In some embodiments of the present application, as in Fig. Figure 10 shows that the housing 10 has an image acquisition interface 140 which is electrically connected to the main body 40. The image acquisition interface 140 can be configured to receive an image captured by a vehicle rear-view camera.

[0169] In some embodiments of the present application, the solar-powered vehicle trip recorder 1 can be connected to the vehicle rear camera via the image acquisition interface 140 in order to receive the image captured by the vehicle rear camera, which can make it easier for the solar-powered vehicle trip recorder 1 to obtain information about the environment behind the vehicle.

[0170] In some embodiments, as in Fig. Figure 10 shows the image acquisition interface 140 defined on the shell 120.

[0171] In some embodiments of the present application, the image acquisition interface 140 can be configured to connect an external power supply to power the solar-powered vehicle drive recorder 1.

[0172] In some embodiments of the present application, as in Fig. 10 and Fig. Figure 11 shows a downwardly projecting structure 150 arranged at a lower edge of the housing 10.

[0173] In some embodiments of the present application, the downwardly projecting structure 150 can be arranged at the lower edge of the housing 10. When the solar-powered vehicle trip recorder 1 is being operated, the projecting structure 150 can be held, which can facilitate operation and thus prevent the solar-powered vehicle trip recorder 1 from wobbling during operation, thereby improving the user experience.

[0174] In some embodiments, as in Fig. 10 and Fig. As shown in Figure 11, the protruding structure 150 is arranged on the lower edge of a front of the housing 10.

[0175] In some embodiments of the present application, as in Fig. As shown in Figure 10, the supercapacitor 30 is in the form of a long cylindrical shape and can be arranged vertically on the PCBA 460.

[0176] In some embodiments of the present application, when the vehicle is moving, the vehicle trip recorder can wobble up and down, and the supercapacitor 30 cannot easily loosen.

[0177] In some embodiments of the present application, as in Fig. As shown in Figure 10, the main body 40 comprises a mounting base that is attached to the PCBA 460. The lens 450 can be mounted on the mounting base. The supercapacitors 30 can be arranged symmetrically on two sides of a receiving direction of the lens 450.

[0178] In some embodiments of the present application, the space on both sides of the lens 450 can be configured to accommodate the supercapacitors 30, which can be easy to install and save space.

[0179] In some embodiments of the present application, as in Fig. Figure 10 shows that the mounting base is attached to the PCBA 460 by mounting parts arranged on a top and a bottom side. The supercapacitors 30 can be arranged on a left and a right side of the mounting base.

[0180] In some embodiments of the present application, a fastening part of the supercapacitors 30 can eliminate the need for mounting parts, which can facilitate installation.

[0181] In some embodiments of the present application, as in Fig. As shown in 10, the mounting base is cross-shaped.

[0182] In some embodiments of the present application, the cross-shaped mounting base can not only meet the assembly requirements but also save material.

[0183] In this specification, descriptions using terms such as "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., mean that the specific features, structures, materials, or properties described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this application, the schematic representations of the aforementioned terms do not necessarily refer to the same embodiment or example. Furthermore, the described specific features, structures, materials, or properties may be combined in one or more embodiments or examples in any suitable manner.Furthermore, experts in this field can combine and assemble different embodiments or examples and features of different embodiments or examples described in the present application without conflicting with each other.

[0184] The embodiments mentioned above serve only to explain, but not to limit, the technical solutions of the present application. Although the present application has been explained in detail with reference to the embodiments described above, a person skilled in the art may understand that the technical solutions described in each of the embodiments mentioned above may be further modified, or that some technical features in the technical solutions may be replaced by equivalent ones. These modifications or equivalent replacements, which do not cause the essence of the corresponding technical solution to differ from the spirit and scope of the technical solution in different embodiments of the present application, should all be included within the scope of protection of the present application. The purposes, technical solutions, and advantages of the present application have been further described in detail in the detailed description.It is understood that the foregoing description is only specific embodiments of the present application and is not intended to limit the scope of the present application, and that all modifications, equivalents, amendments, and the like which are within the meaning and scope of the present application shall be included in the scope of the present application.

Claims

[1] Power supply device (11, 11a, 11b) for a vehicle data recorder, characterized by , that it includes: a photovoltaic element (101); a first voltage stabilization unit (103) connected to the photovoltaic element (101); and an energy storage unit (105) connected to an output end of the first voltage stabilization unit (103); wherein the photovoltaic element (101) is configured to convert light energy into electrical energy and to output the electrical energy to the first voltage stabilization unit (103); the first voltage stabilization unit (103) is configured to convert the electrical energy input by the photovoltaic element (101) into a stable voltage and to charge the energy storage unit (105); and the energy storage unit (105) is configured to supply power to the vehicle trip recorder. [2] Power supply device (11, 11a, 11b) according to claim 1, further comprising: a first filter element (102) connected to the photovoltaic element (101) and configured to filter the electrical energy output by the photovoltaic element (101) and to output the filtered electrical energy to the first voltage stabilization unit (103); and a second filter element (104) which is connected to the output end of the first voltage stabilization unit (103) and is configured to filter the voltage output by the first voltage stabilization unit (103) and to charge the energy storage unit (105). [3] Power supply device (11, 11a, 11b) according to claim 2, wherein the photovoltaic element (101) is a perovskite solar cell, the first voltage stabilization unit (103) is a step-up switching regulator, and the second filter element (104) is an inductor-capacitor (LC) filter circuit. [4] Power supply device (11, 11a, 11b) according to claim 2, wherein the photovoltaic element (101) is a concentrating photovoltaic element, the first voltage stabilization unit (103) is a digital maximum power point tracking boost converter, and the second filter element (104) is a π-filter circuit. [5] Power supply device (11, 11a, 11b) according to claim 2, wherein the photovoltaic element (101) is a thin-film solar cell, the first voltage stabilization unit (103) is a low-dropout linear regulator, and the second filter element (104) is an electromagnetic interference filter. [6] Power supply device (11, 11a, 11b) according to claim 2, wherein the photovoltaic element (101) is a discrete photovoltaic cell unit, the first voltage stabilization unit (103) is a Zener diode stabilization unit, and the second filter element (104) is a resistor-capacitor (RC) filter circuit. [7] Power supply device (11, 11a, 11b) according to claim 2, wherein the photovoltaic element (101) is a dye-sensitized solar cell, the first voltage stabilization unit (103) is a step-down regulator, and the second filter element (104) is a digital filter. [8] Power supply device (11, 11a, 11b) according to any one of claims 1 to 7, further comprising: a third filter element (201) connected to the energy storage unit (105); and a second voltage stabilization unit (202) connected to the third filter element (201); wherein the third filter element (201) is configured to filter the voltage output by the energy storage unit (105) and output the filtered voltage to the second voltage stabilization unit (202), and the second voltage stabilization unit (202) is configured to convert the voltage filtered by the third filter element (201) into a voltage usable by a gravity sensor (601) or a main controller of the vehicle drive recorder. [9] Power supply device (11, 11a, 11b) according to claim 8, wherein the power supply device (11, 11a, 11b) further comprises a Schottky diode (301) connected in series with the third filter element (201); a cathode of the Schottky diode (301) connected in series with a fourth filter element (302), and the fourth filter element (302) is configured to filter the voltage converted by the second voltage stabilization unit (202) and output the filtered voltage to the main controller of the vehicle trip recorder. [10] Power supply device (11, 11a, 11b) according to any one of claims 1 to 9, wherein in a case where the vehicle trip recorder detects that the power supply from a vehicle power source to the vehicle trip recorder is interrupted, the energy storage unit (105) is activated to supply the vehicle trip recorder with power. [11] Vehicle trip recorder comprising the power supply device (11, 11a, 11b) according to any one of claims 1 to 10. [12] Vehicle trip recorder according to claim 11, wherein a thermal insulation bracket is provided between a printed circuit board assembly (PCBA) (460) of the vehicle trip recorder and the energy storage unit (105). (401) is arranged, and one side of the energy storage unit (105) is covered with a foam (501). [13] Solar-powered vehicle data recorder (1), comprising: a case (10); a photovoltaic element (20) mounted on an outside of the housing (10); an energy storage element (30) which is arranged inside the housing (10) and electrically connected to the photovoltaic element (20); a main body (40) mounted on the housing (10), electrically connected to the energy storage element (30) and configured to record information about the environment of a vehicle; and a first voltage stabilization unit which is connected to the photovoltaic element (101) and is configured to convert the electrical energy input through the photovoltaic element (20) into a stable voltage and to charge the energy storage element (30). [14] Solar-powered vehicle trip recorder (1) according to claim 13, wherein the housing (10) has an external interface (130); wherein the main body (40) comprises: a control module (410) that is electrically connected to the energy storage element (30) or the external interface (130); and a recording device (430) which is electrically connected to the control module (410) and is configured to record information about the vehicle's environment. [15] Solar-powered vehicle trip recorder (1) according to claim 14, wherein the control module (410) comprises a switch sub-module (4110), and the recording device (430) is electrically connected to the switch sub-module (4110); the switch sub-module (4110) is configured to control the connection and disconnection between the recording device (430) and the energy storage element (30); and / or the switch sub-module (4110) is configured to control the connection and disconnection between the recording device (430) and the external interface (130). [16] Solar-powered vehicle trip recorder (1) according to claim 14, wherein the main body (40) further comprises a first acquisition module (420), and the first acquisition module (420) is electrically connected to the external interface (130) or the control module (410); the first acquisition module (420) is configured to acquire a power supply output voltage of the external interface (130), and the control module (410) is configured to control the connection and disconnection between the recording device (430) and the external interface (130) and / or the connection and disconnection between the recording device (430) and the energy storage element (30). [17] Solar-powered vehicle trip recorder (1) according to claim 16, wherein the control module (410) is configured to control the connection between the recording device (430) and the external interface (130) in a case where the power supply output voltage is greater than a first preset voltage; and / or the control module (410) is further configured to control the disconnection between the recording device (430) and the energy storage element (30) in a case where the power supply output voltage is greater than a first preset voltage. [18] Solar-powered vehicle trip recorder (1) according to claim 16, wherein the control module (410) is configured to control the connection between the recording device (430) and the energy storage element (30) in a case where the power supply output voltage is less than or equal to the first preset voltage. [19] Solar-powered vehicle trip recorder (1) according to claim 14, wherein the main body (40) further comprises a second sensing module (480), and the second sensing module (480) is electrically connected to the energy storage element (30) or the control module (410); the second sensing module (480) is configured to sensing a capacitor output voltage of the energy storage element (30), and the control module (410) is configured to control the connection and disconnection between the recording device (430) and the energy storage element (30) and / or the connection and disconnection between the recording device (430) and the photovoltaic element (20). [20] Solar-powered vehicle trip recorder (1) according to claim 19, wherein the control module (410) is configured to control the connection between the recording device (430) and the energy storage element (30) in a case where the capacitor output voltage is greater than a second preset voltage; and / or the control module (410) is further configured to control the connection between the recording device (430) and the photovoltaic element (20) in a case where a voltage at two terminals of the energy storage element (30) is greater than or equal to a third preset voltage. [21] Solar-powered vehicle trip recorder (1) according to one of claims 14 to 20, wherein the housing (10) further comprises a shell (120) and a base (110) rotatably connected to the shell (120), the energy storage element (30) and the main body (40) are mounted inside the shell (120), the photovoltaic element (20) is mounted on the base (110), and the external interface (130) is arranged on the base (110). [22] Solar-powered vehicle trip recorder (1) according to one of claims 13 to 20, wherein a downwardly projecting structure (150) is arranged at a lower edge of the housing (10).

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