Vehicle dangerous state prompting method and system, vehicle, device and electronic equipment

Abstract

The embodiment of the invention relates to a vehicle dangerous state prompting method and system, a vehicle, a device and electronic equipment. The method comprises the steps that the relative motion state between a target object outside the vehicle and the vehicle is determined; under the condition that the relative motion state meets the potential dangerous state condition, environment information representing the current environment state of the vehicle is obtained; according to the environment information, a spraying instruction used for controlling spraying equipment on the vehicle is generated; and controlling spraying equipment to spray out of the vehicle based on the spraying instruction. According to the embodiment of the invention, drivers inside and outside the vehicle can observe the spraying phenomenon, so that the effect of sending danger prompts to users more efficiently and intuitively is achieved.

Description

Technical Field

[0001] The present application relates to the field of intelligent vehicle technology, and in particular to a method, system, vehicle, device and electronic equipment for prompting a dangerous state of a vehicle. Background Art

[0002] With the continuous development of the automobile industry, there are more and more vehicles on the road, but the driving level is also uneven. Especially when changing lanes, there are many accidents caused by the driver's lack of concentration or misjudgment of overtaking conditions. In order to improve driving safety, there are currently solutions for auxiliary detection of the driver's blind spot area when driving. For example, the vehicle's blind spot can be detected in real time through a camera or lidar, and then light prompts or alarm sound prompts can be output. However, the light prompt solution is easy to confuse the blind spot reminder light with other types of lights, and the alarm sound prompt solution has high requirements for the adjustment of the audio system. Too loud volume can easily scare the driver, and too low volume is difficult to hear clearly.

[0003] Therefore, how to enable the vehicle to issue more clear and accurate warnings to the driver when there is a risk of collision is a problem that needs to be solved. Summary of the invention

[0004] In view of this, in order to solve some or all of the above-mentioned technical problems, the embodiments of the present application provide a vehicle dangerous state prompt method, system, vehicle, device, electronic device and storage medium.

[0005] In a first aspect, an embodiment of the present application provides a method for prompting a dangerous state of a vehicle, the method comprising: determining the relative motion state between a target object outside the vehicle and the vehicle; when the relative motion state meets the conditions of a potential dangerous state, obtaining environmental information representing the current environmental state of the vehicle; based on the environmental information, generating a spray instruction for controlling a spray device on the vehicle; and based on the spray instruction, controlling the spray device to spray outside the vehicle.

[0006] In one possible embodiment, the environmental information includes a first temperature inside the vehicle and a second temperature outside the vehicle; based on the environmental information, a spray instruction for controlling a spray device on the vehicle is generated, including: if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, a first spray instruction is generated to switch the spray source of the spray device to a heat exchanger on the vehicle; if the result obtained by subtracting the second temperature from the first temperature is less than the preset temperature difference threshold, a second spray instruction is generated to switch the spray source of the spray device to a refrigeration device on the vehicle.

[0007] In one possible embodiment, the environmental information includes a first air pressure inside the vehicle and a second air pressure outside the vehicle; based on the environmental information, an injection instruction for controlling a spray device on the vehicle is generated, including: determining an air pressure difference between the first air pressure and the second air pressure; based on a preset correspondence between the air pressure difference and the injection rate, determining an injection power corresponding to the air pressure difference; and generating a third injection instruction corresponding to the injection power.

[0008] In one possible embodiment, if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, a first injection instruction is generated for switching the spray source of the spray device to a heat exchanger on the vehicle, including: if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to the preset temperature difference threshold, and the second temperature is less than or equal to the preset temperature threshold, a first injection instruction is generated for switching the spray source of the spray device to the heat exchanger on the vehicle and adjusting the injection rate of the spray device to the preset injection rate.

[0009] In the second aspect, an embodiment of the present application provides a vehicle dangerous state prompting device, which includes: a determination module, used to determine the relative motion state between a target object outside the vehicle and the vehicle; an acquisition module, used to obtain environmental information representing the current environmental state of the vehicle when the relative motion state meets the potential dangerous state conditions; a generation module, used to generate a spray instruction for controlling a spray device on the vehicle based on the environmental information; and a control module, used to control the spray device to spray outside the vehicle based on the spray instruction.

[0010] In a third aspect, an embodiment of the present application provides a vehicle dangerous state warning system, the system comprising: a controller, an environmental monitoring sensor, and a spray device, wherein the controller is connected to the environmental detection sensor and the spray device; the environmental monitoring sensor is used to sense the current environmental state of the vehicle and obtain environmental information; the controller is used to execute the vehicle dangerous state warning method described in the first aspect above, and send the generated injection instruction to the spray device; the spray device is used to spray outside the vehicle under the control of the injection instruction.

[0011] In one possible embodiment, the environmental monitoring sensor includes a temperature sensor, which is used to sense a first temperature inside the vehicle and a second temperature outside the vehicle; the spray device includes a switching valve, a heat exchanger and a refrigeration device; the controller is also used to: if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, generate a first injection instruction, and send the first injection instruction to the switching valve and the heat exchanger; if the result obtained by subtracting the second temperature from the first temperature is less than the preset temperature difference threshold, generate a second injection instruction, and send the second injection instruction to the switching valve and the refrigeration device; the switching valve is used to: if the first injection instruction is received, connect the spray pipe of the spray device to the heat exchanger; the heat exchanger is used to: if the first injection instruction is received, perform a heat exchange function to flow the air inside the vehicle to the outside of the vehicle; the switching valve is also used to: if the second injection instruction is received, connect the spray pipe of the spray device to the refrigeration device; the refrigeration device is used to: if the second injection instruction is received, perform a refrigeration function, and flow the low-temperature gas to the outside of the vehicle.

[0012] In a possible implementation, the refrigeration device is further configured to: if a second injection instruction is received, execute a refrigerant compression function and flow the compressed low-temperature refrigerant to the outside of the vehicle.

[0013] In one possible embodiment, the environmental monitoring sensor includes an air pressure sensor, which is used to sense a first air pressure inside the vehicle and a second air pressure outside the vehicle; the spray equipment includes a spray speed adjustment device; the controller is also used to: determine the air pressure difference between the first air pressure and the second air pressure; based on a preset correspondence between the air pressure difference and the injection rate, determine a target injection rate corresponding to the air pressure difference; generate a third injection instruction corresponding to the injection rate, and send the third injection instruction to the injection speed adjustment device; the injection speed adjustment device is used to: adjust the injection rate of spraying outside the vehicle to the target injection rate according to the third injection instruction.

[0014] In a fourth aspect, an embodiment of the present application provides a vehicle, comprising the vehicle dangerous state warning system described in the third aspect above.

[0015] In a fifth aspect, an embodiment of the present application provides an electronic device, comprising: a memory for storing a computer program; a processor for executing the computer program stored in the memory, and when the computer program is executed, the method of any embodiment of the vehicle dangerous state prompting method of the above-mentioned first aspect of the present application is implemented.

[0016] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, a method as in any embodiment of the vehicle dangerous state prompting method of the first aspect described above is implemented.

[0017] In the seventh aspect, an embodiment of the present application provides a computer program, which includes a computer readable code. When the computer readable code is executed on a device, the processor in the device implements a method as in any embodiment of the vehicle dangerous state prompt method of the first aspect mentioned above.

[0018] The vehicle dangerous state warning method, system, vehicle, device and electronic device provided in the embodiments of the present application, when detecting that the vehicle is in a dangerous state, generates a spray instruction based on the detected environmental information, and controls the spray equipment on the vehicle to spray outside the vehicle according to the spray instruction, thereby helping to overcome the problem that prompting methods such as lights and sounds are not easily perceived by users clearly, so that drivers inside and outside the vehicle can observe the spray phenomenon, thereby achieving the effect of issuing danger warnings to users more efficiently and intuitively. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0021] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0022] Figure 1 A schematic diagram of a process for indicating a dangerous state of a vehicle provided in an embodiment of the present application;

[0023] Figure 2 A schematic diagram of a flow chart of another method for indicating a dangerous state of a vehicle provided in an embodiment of the present application;

[0024] Figure 3 A flowchart of another method for indicating a dangerous state of a vehicle provided in an embodiment of the present application;

[0025] Figure 4 A schematic diagram of the structure of a vehicle dangerous state prompting device provided in an embodiment of the present application;

[0026] Figure 5 A schematic diagram of the structure of a vehicle dangerous state prompting system provided in an embodiment of the present application;

[0027] Figure 6 A schematic diagram of the structure of another vehicle dangerous state prompting system provided in an embodiment of the present application;

[0028] Figure 7 A structural diagram of another vehicle dangerous state prompting system provided in an embodiment of the present application;

[0029] Figure 8 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0030] Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. It should be noted that unless otherwise specifically stated, the relative arrangement of the components and steps, the numerical expressions and the numerical values ​​described in these embodiments do not limit the scope of the present application.

[0032] Those skilled in the art will understand that the terms "first" and "second" in the embodiments of the present application are only used to distinguish between different steps, devices, modules and other objects, and do not represent any specific technical meanings, nor do they indicate the logical order between them.

[0033] It should also be understood that in this embodiment, “plurality” may refer to two or more than two, and “at least one” may refer to one, two or more than two.

[0034] It should also be understood that any component, data or structure mentioned in the embodiments of the present application can generally be understood as one or more, unless explicitly limited or otherwise indicated in the context.

[0035] In addition, the term "and / or" in this application is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the associated objects before and after are in an "or" relationship.

[0036] It should also be understood that the description of the various embodiments in this application focuses on the differences between the various embodiments, and the same or similar aspects thereof can be referenced to each other, and for the sake of brevity, they will not be described one by one.

[0037] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present application, its application, or uses.

[0038] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the above-mentioned technologies, methods, and equipment should be considered as part of the specification.

[0039] It should be noted that like reference numerals and letters refer to similar items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0040] It should be noted that, in the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. To facilitate the understanding of the embodiments of the present application, the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0041] In order to solve the technical problem in the prior art that when it is detected that the vehicle is at risk of colliding with other objects, the output of light or sound prompts causes unclear prompting effects, the present application provides a vehicle dangerous state prompting method, which can prompt users more intuitively in dangerous states and improve the recognizability of dangerous state prompts.

[0042] Figure 1 A flow chart of a vehicle dangerous state prompting method provided for an embodiment of the present application. This method can be applied to a vehicle and executed by a dedicated controller on the vehicle. This method can also be executed by general electronic devices such as servers, smart phones, and laptops, which can maintain a communication connection with the vehicle, obtain environmental information, motion status information between other objects, etc. from the vehicle, and use this information to generate injection instructions and feed back the injection instructions to the vehicle. In addition, the execution subject of this method can be hardware or software. When the above-mentioned execution subject is hardware, the execution subject can be one or more of the above-mentioned electronic devices. For example, a single electronic device can execute this method, or multiple electronic devices can cooperate with each other to execute this method. When the above-mentioned execution subject is software, this method can be implemented as multiple software or software modules, or as a single software or software module. It is not specifically limited here.

[0043] like Figure 1 As shown, the method specifically includes:

[0044] Step 101 : determining the relative motion state between a target object outside a vehicle and the vehicle.

[0045] In this embodiment, the target object can be any type of object around the vehicle, such as other vehicles, pedestrians, obstacles, etc. The electronic device executing this method can use a camera, a laser radar, an ultrasonic radar, etc. to identify the relative speed, relative distance, and other information between the target object and the vehicle in real time, and this information can represent the relative motion state between the target object and the vehicle.

[0046] Step 102: When the relative motion state meets the potential dangerous state condition, obtain environmental information representing the current environmental state of the vehicle.

[0047] In this embodiment, the potential danger state condition can be preset. For example, when the relative distance between the target object and the vehicle is within a preset distance range, and the relative speed is greater than or equal to a preset speed, it is determined that the vehicle is in a potential danger state at this time, and there is a risk of collision with the target object.

[0048] The above environmental information can be collected by sensors on the vehicle, or obtained from a cloud server based on the current location of the vehicle. For example, the environmental information can include but is not limited to at least one of the following: temperature, air pressure, humidity, altitude, etc.

[0049] Step 103: Generate a spray instruction for controlling a spray device on the vehicle according to the environmental information.

[0050] In this embodiment, the spray device can be a device specially provided on the vehicle for spraying (such as a dry ice sprayer), or it can be a device shared with other scenes on the vehicle and capable of spraying gas outward (such as an air-conditioning compressor).

[0051] The correspondence between environmental information and injection instructions can be preset. Specifically, the execution mode of the injection operation represented by the injection instruction is related to the environmental information. For example, when the humidity of the air outside the vehicle is high (for example, higher than a preset humidity threshold), only a small amount of low-temperature gas needs to be injected to produce a spray effect. At this time, an injection instruction can be generated to instruct the air-conditioning compressor on the vehicle to inject cold air outside the vehicle at a lower intensity; when the temperature outside the vehicle is low (for example, lower than a preset temperature threshold), only a small amount of water vapor needs to be injected to produce a spray effect. At this time, an injection instruction can be generated to instruct the water vapor generating device on the vehicle (for example, a device that heats and pressurizes water to spray water mist outward) to inject high-temperature water vapor outside the vehicle at a lower intensity.

[0052] Step 104 : Based on the spray instruction, control the spray device to spray outside the vehicle.

[0053] In this embodiment, the spray instruction is used to control whether the spray device starts the spray operation and to control the intensity of the spray. Generally, in order to allow both the people inside and outside the vehicle to see the spray phenomenon, the spray outlet can be set near the rearview mirror outside the vehicle. If a dangerous situation is detected, columnar smoke is generated near the rearview mirror, and the people inside and outside the vehicle can see or feel the spray phenomenon, thereby achieving the effect of prompting the dangerous situation.

[0054] The vehicle dangerous state prompt method provided in the embodiment of the present application generates a spray instruction based on the detected environmental information when the vehicle is detected to be in a dangerous state, and controls the spray equipment on the vehicle to spray outside the vehicle according to the spray instruction, thereby helping to overcome the problem that prompt methods such as lights and sounds are not easily perceived by users clearly, so that drivers inside and outside the vehicle can observe the spray phenomenon, thereby achieving the effect of issuing danger prompts to users more efficiently and intuitively.

[0055] In some optional implementations of this embodiment, the environmental information includes a first temperature inside the vehicle and a second temperature outside the vehicle. The first temperature can be acquired using a temperature sensor inside the vehicle, and the second temperature can be acquired using a temperature sensor outside the vehicle, or can be acquired from a remote server based on the current location of the vehicle.

[0056] like Figure 2 As shown, step 103 includes:

[0057] Step 1031 : If the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, a first spray instruction is generated for switching the spray source of the spray device to a heat exchanger on the vehicle.

[0058] A valve may be provided in the pipeline of the spray device on the vehicle, and the valve may switch the spray source under the control of the electronic device executing the method, and the spray source may include a heat exchanger and a refrigeration device.

[0059] The above-mentioned preset temperature difference threshold can be set according to actual needs, for example, the preset temperature difference threshold can be 10°C. The heat exchanger is used to exchange the air inside and outside the vehicle. In this embodiment, the heat exchanger can quickly flow the high-temperature air in the car to the outside of the car under the drive of the fan. Due to the large temperature difference between the inside and outside of the car, the air in the car contains water vapor, which condenses into water droplets when it encounters cold outside the car, thereby generating a spray phenomenon.

[0060] Step 1032: If the result obtained by subtracting the second temperature from the first temperature is less than a preset temperature difference threshold, a second spray instruction is generated for switching the spray source of the spray device to a refrigeration device on the vehicle.

[0061] The refrigeration device is used to cool a certain area of ​​the vehicle. For example, the refrigeration device can be an air conditioner or a vehicle refrigerator. In one embodiment, the refrigeration device can cool the air. When the temperature difference between the inside and outside of the vehicle is small, the spray phenomenon generated by the heat exchanger is not obvious. Therefore, the refrigeration device can be used to generate cold air. The cold air flows to the outside of the vehicle through the above-mentioned valve, and the water vapor in the air outside the vehicle is cooled to generate the spray phenomenon. In another embodiment, the refrigerant compressor included in the refrigeration device can be used in combination with a condenser and other devices to generate a high-pressure liquid refrigerant. The high-pressure liquid refrigerant can flow to the outside of the vehicle under the control of the valve to generate a spray phenomenon outside the vehicle.

[0062] This embodiment determines the temperature difference between the inside and outside of the vehicle, and when the temperature difference is large, uses the flow of air itself to produce a spray phenomenon, thereby helping to reduce energy consumption. This embodiment uses existing equipment on the vehicle to produce the spray phenomenon, and there is no need to set up a dedicated spray device separately, which helps to reduce vehicle costs.

[0063] In some optional implementations of this embodiment, the above step 1031 includes:

[0064] If the result obtained by subtracting the second temperature from the first temperature is greater than or equal to the preset temperature difference threshold, and the second temperature is less than or equal to the preset temperature threshold, a first injection instruction is generated for switching the spray source of the spray device to the heat exchanger on the vehicle and adjusting the injection rate of the spray device to the preset injection rate.

[0065] The first injection rate is the injection rate in the low temperature state, which is lower than the injection rate in the non-low temperature state (ie, the state where the second temperature is greater than a preset temperature threshold).

[0066] Specifically, when the second temperature is less than or equal to the preset temperature threshold, it means that the temperature outside the vehicle is relatively low at this time, and a significant spray effect can be produced without using a higher injection rate, thereby helping to reduce the power consumption of the vehicle.

[0067] In some optional implementations of this embodiment, the environmental information includes a first air pressure inside the vehicle and a second air pressure outside the vehicle. The first air pressure can be measured by a barometer inside the vehicle, and the second air pressure can be measured by a barometer outside the vehicle, or can be obtained from a remote server based on the current location of the vehicle.

[0068] like Figure 3 As shown, step 103 includes:

[0069] Step 1033, determining the pressure difference between the first air pressure and the second air pressure.

[0070] Typically, the first air pressure will be greater than the second air pressure.

[0071] Step 1034, based on the preset corresponding relationship between the air pressure difference and the injection rate, determine the injection power corresponding to the air pressure difference.

[0072] The above correspondence can be obtained by pre-calibration. The correspondence can be stored in a local memory of the vehicle in a table format, or it can be stored in a remote server. Usually, an initial injection rate can be generated by using the pressure difference generated by the air pressure inside and outside the vehicle. The greater the air pressure difference, the greater the initial injection rate. Therefore, a smaller injection power can be set accordingly, so that the injection rate regulating device of the spray equipment operates at a lower power. On the contrary, the smaller the air pressure difference, the smaller the initial injection rate. Therefore, a larger injection power needs to be set accordingly, so that the injection rate regulating device operates at a higher power.

[0073] Step 1035: Generate a third injection instruction corresponding to the injection power.

[0074] Under the control of the third spray instruction, the spray device can perform a spray operation according to a corresponding spray rate.

[0075] This embodiment achieves effective use of the initial injection rate generated by the pressure difference by determining the pressure difference between the inside and outside of the vehicle, adjusts the injection power of the spray device, and helps save energy consumed by the injection operation.

[0076] Figure 4 A schematic diagram of the structure of a vehicle dangerous state warning device provided in an embodiment of the present application. Specifically comprising:

[0077] A determination module 401 is used to determine the relative motion state between the target object outside the vehicle and the vehicle;

[0078] An acquisition module 402 is used to acquire environmental information indicating the current environmental state of the vehicle when the relative motion state meets the potential dangerous state condition;

[0079] A generating module 403, for generating a spraying instruction for controlling a spraying device on a vehicle according to the environmental information;

[0080] The control module 404 is used to control the spray device to spray outside the vehicle based on the spray instruction.

[0081] In one possible embodiment, the environmental information includes a first temperature inside the vehicle and a second temperature outside the vehicle; the generation module includes: a first generation unit, which is used to generate a first injection instruction for switching the spray source of the spray device to a heat exchanger on the vehicle if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold; a second generation unit, which is used to generate a second injection instruction for switching the spray source of the spray device to a refrigeration device on the vehicle if the result obtained by subtracting the second temperature from the first temperature is less than the preset temperature difference threshold.

[0082] In one possible embodiment, the environmental information includes a first air pressure inside the vehicle and a second air pressure outside the vehicle; the generation module includes: a first determination unit, used to determine the pressure difference between the first air pressure and the second air pressure; a second determination unit, used to determine the injection power corresponding to the pressure difference based on a preset correspondence between the pressure difference and the injection rate; and a third generation unit, used to generate a third injection instruction corresponding to the injection power.

[0083] In one possible embodiment, the first generating unit is further used to: if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, and the second temperature is less than or equal to a preset temperature threshold, generate a first injection instruction for switching the spray source of the spray device to a heat exchanger on the vehicle and adjusting the injection rate of the spray device to a preset injection rate.

[0084] The vehicle dangerous state prompting device provided in this embodiment can be as follows Figure 4 The vehicle dangerous state prompting device shown in can execute all steps of the above vehicle dangerous state prompting methods, thereby achieving the technical effects of the above vehicle dangerous state prompting methods. Please refer to the above related description for details. For the sake of brevity, it will not be repeated here.

[0085] Figure 5 A schematic diagram of a vehicle dangerous state prompting system 500 provided in an embodiment of the present application. The system can be arranged on a vehicle. The system specifically comprises: a controller 501, an environment monitoring sensor 502, and a spray device 503, wherein the controller is connected to the environment detection sensor and the spray device.

[0086] The controller 501 may be an existing controller 501 on the vehicle, on which the spray control function is provided, or may be a controller 501 specially provided on the vehicle for executing the spray control function.

[0087] The environment monitoring sensor 502 is used to sense the current environment state of the vehicle and obtain environment information. The environment detection sensor may include various types of sensors such as temperature sensors, air pressure sensors, and humidity sensors.

[0088] The controller 501 is used to execute the vehicle dangerous state prompting method described in the above embodiments, and send the generated injection instruction to the spray device 503.

[0089] The spray device 503 may be a device specially provided on the vehicle for spraying (eg, a dry ice sprayer), or may be a device shared with other scenes on the vehicle and capable of spraying gas outward (eg, an air-conditioning compressor).

[0090] The spray device 503 is used to spray outside the vehicle under the control of the spray instruction.

[0091] Usually, in order to allow both people inside and outside the vehicle to see the spray phenomenon, the spray outlet can be set near the rearview mirror outside the vehicle. If a dangerous situation is detected, columnar smoke is generated near the rearview mirror, and people inside and outside the vehicle can see or feel the spray phenomenon, thereby achieving the effect of warning of the dangerous situation.

[0092] The vehicle dangerous state system provided in this embodiment realizes real-time monitoring of the vehicle's environmental state by setting up a controller, an environmental monitoring sensor, and a spray device. When it is detected that the vehicle is in a dangerous state, the controller generates a spray instruction based on the environmental information, and based on the spray instruction, the spray device sprays outside the vehicle, which helps to overcome the problem that prompts such as lights and sounds are not easily perceived by users clearly, so that drivers inside and outside the vehicle can observe the spray phenomenon, thereby achieving the effect of issuing danger prompts to users more efficiently and intuitively.

[0093] In some optional implementations of this embodiment, such as Figure 6 As shown, the environmental monitoring sensor 502 includes a temperature sensor 5021 ( Figure 6 It includes two temperature sensors A and B, the temperature sensor 5021 is used to sense a first temperature inside the vehicle and a second temperature outside the vehicle; the spray device 503 includes a switching valve 5031, a heat exchanger 5032 and a refrigeration device 5033.

[0094] The two gas inlets of the switching valve 5031 are connected to the heat exchanger 5032 and the refrigeration device respectively, and the gas outlet of the switching valve 5031 is connected to the gas jet of the spray device 503 .

[0095] The controller 501 is also used for:

[0096] If the result obtained by subtracting the second temperature from the first temperature is greater than or equal to the preset temperature difference threshold, a first injection instruction is generated and sent to the switching valve 5031 and the heat exchanger 5032; if the result obtained by subtracting the second temperature from the first temperature is less than the preset temperature difference threshold (for example, 10°C), a second injection instruction is generated and sent to the switching valve 5031 and the refrigeration device.

[0097] The switching valve 5031 is used to connect the spray pipe of the spray device 403 with the heat exchanger 5032 if the first spray instruction is received. The switching valve 5031 may be a solenoid valve, which may be controlled by an externally input instruction.

[0098] The heat exchanger 5032 is used to: if a first injection instruction is received, perform a heat exchange function to flow the air in the vehicle to the outside of the vehicle;

[0099] Specifically, the heat exchanger 5032 can exchange air between the inside and outside of the vehicle. In this embodiment, the heat exchanger 5032 can quickly flow the high-temperature air inside the vehicle to the outside of the vehicle under the drive of the fan. Due to the large temperature difference between the inside and outside of the vehicle, the air inside the vehicle contains water vapor, which condenses into water droplets when it encounters cold outside the vehicle, thereby generating a spray phenomenon.

[0100] Optionally, in order to make the air flowing from the inside of the vehicle to the outside of the vehicle contain more water vapor, a water vapor generating device (such as a humidifier) ​​can be set on the heat exchanger 5032. The generated water vapor flows to the outside of the vehicle together with the air inside the vehicle, which is conducive to the generation of the spray phenomenon.

[0101] The switching valve 5031 is also used to connect the spray pipe of the spray device 503 to the refrigeration device if a second spray instruction is received.

[0102] The refrigeration device is used to: if a second injection instruction is received, execute a refrigeration function and flow low-temperature gas to the outside of the vehicle.

[0103] The refrigeration device can cool a certain area of ​​the vehicle. For example, the refrigeration device can be an air conditioner or a car refrigerator. In one embodiment, the refrigeration device can cool the air. When the temperature difference between the inside and outside of the vehicle is small, the spray phenomenon generated by the heat exchanger 5032 is not obvious. Therefore, the refrigeration device can be used to generate cold air, and the cold air flows to the outside of the vehicle through the above valve, and the water vapor in the air outside the vehicle is cooled to generate the spray phenomenon.

[0104] This embodiment sets a switching valve to switch the spray source to a heat exchanger or refrigeration equipment according to the temperature difference between inside and outside the vehicle, thereby effectively utilizing the temperature difference, reducing the number of times the refrigeration equipment is used, and helping to reduce energy consumption.

[0105] In some optional implementations of this embodiment, the refrigeration device is further used for:

[0106] If the second injection command is received, the refrigerant compression function is executed, and the compressed low-temperature refrigerant flows out of the vehicle.

[0107] The refrigeration device includes a refrigerant compressor. The refrigerant is compressed in the compressor, causing its temperature and pressure to rise. The high-temperature and high-pressure refrigerant flows through the condenser, releases heat to the surrounding environment, and changes from gas to liquid. After compression and condensation, the refrigerant forms a high-pressure liquid and is stored in the condenser tank. When the second injection command is received, the low-temperature refrigerant in the condenser tank can be controlled to be discharged, so that the water vapor near the nozzle quickly condenses, and an obvious spray phenomenon is produced outside the vehicle.

[0108] In this embodiment, a low-temperature refrigerant is obtained by using a compressor, and the low-temperature refrigerant is used to generate a spray phenomenon, so that the spray phenomenon can be made more obvious and the danger warning effect can be enhanced.

[0109] In some optional implementations of this embodiment, such as Figure 7 As shown, the environmental monitoring sensor 502 includes an air pressure sensor 5022 ( Figure 7 The spray device 503 includes two air pressure sensors A and B. The air pressure sensor 5022 is used to sense a first air pressure inside the vehicle and a second air pressure outside the vehicle. The spray device 503 includes a spray speed regulating device 5034.

[0110] The spray speed regulating device 5034 can be arranged in front of the spray nozzle outside the vehicle, for example, between the spray nozzle and Figure 6 The switching valve 5031 is shown. The injection adjustment device may include a fan, a gas booster, etc. to control the rate of the gas ejected according to the injection instruction. It should be understood that Figure 7 The structure shown is in Figure 6 The embodiment shown in the figure is arranged on the basis of the embodiment shown in the figure. Figure 6 The illustrated embodiment is combined, i.e., the air pressure sensor 5022 and the injection speed regulating device 5034 are separately provided.

[0111] The controller 501 is also used to: determine the pressure difference between the first air pressure and the second air pressure; determine the target injection rate corresponding to the pressure difference based on the preset correspondence between the pressure difference and the injection rate; generate a third injection instruction corresponding to the injection rate, and send the third injection instruction to the injection rate adjustment device 5034.

[0112] The injection rate regulating device 5034 is used to adjust the injection rate of the spray outside the vehicle to the target injection rate according to the third injection instruction.

[0113] The above correspondence can be obtained by pre-calibration. Usually, the pressure difference generated by the air pressure inside and outside the vehicle can be used to generate an initial injection rate. The greater the air pressure difference, the greater the initial injection rate. Therefore, a smaller injection power can be set accordingly to make the injection rate adjustment device 5034 of the spray device 503 operate at a lower power. On the contrary, the smaller the air pressure difference, the smaller the initial injection rate. Therefore, a larger injection power needs to be set accordingly to make the injection rate adjustment device 5034 operate at a higher power.

[0114] This embodiment provides a spray speed regulating device to adjust the spray speed based on the pressure difference between the inside and outside of the vehicle, thereby effectively utilizing the initial spray speed generated by the pressure difference, adjusting the spray power of the spray equipment, and helping to save energy consumed by the spray operation.

[0115] Optionally, the controller 501 is also used to: if the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, and the second temperature is less than or equal to a preset temperature threshold, generate a first injection instruction for switching the spray source of the spray device to the heat exchanger 5032 on the vehicle, and adjusting the injection rate of the spray device to a preset injection rate.

[0116] The spray speed regulating device 5034 is used to switch the spray source of the spray device to the heat exchanger 5032 according to the first spray instruction, and adjust the spray speed of the spray outside the vehicle to a preset spray speed. The preset spray speed is lower than the spray speed in a non-low temperature state (i.e., a state where the second temperature is greater than a preset temperature threshold).

[0117] Figure 8 The schematic diagram of the structure of a vehicle provided in the embodiment of the present application includes the above-mentioned vehicle dangerous state prompting system 500. The technical effects of the above-mentioned vehicle dangerous state prompting systems can be achieved. For details, please refer to the above-mentioned related descriptions. For the sake of brevity, no further description is given here.

[0118] Fig. 9 A schematic diagram of the structure of an electronic device provided in an embodiment of the present application, Fig. 9 The electronic device 900 shown includes: at least one processor 901, a memory 902, at least one network interface 904 and other user interfaces 903. The various components in the electronic device 900 are coupled together via a bus system 905. It is understood that the bus system 905 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 905 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, the bus system 905 is not described in detail. Fig. 9 Various buses are labeled as bus system 905.

[0119] The user interface 903 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touch pad, or a touch screen).

[0120] It can be understood that the memory 902 in the embodiment of the present application can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory can be a random access memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM) and direct RAM bus random access memory (DRRAM). The memory 902 described herein is intended to include, but is not limited to, these and any other suitable types of memory.

[0121] In some embodiments, the memory 902 stores the following elements, executable units or data structures, or a subset thereof, or an extended set thereof: an operating system 9021 and an application program 9022 .

[0122] The operating system 9021 includes various system programs, such as a framework layer, a core library layer, a driver layer, etc., for implementing various basic services and processing hardware-based tasks. The application 9022 includes various application programs, such as a media player (Media Player), a browser (Browser), etc., for implementing various application services. The program for implementing the method of the embodiment of the present application can be included in the application 9022.

[0123] In this embodiment, by calling the program or instruction stored in the memory 902, specifically, the program or instruction stored in the application 9022, the processor 901 is used to execute the method steps provided by each method embodiment, for example, including:

[0124] Determine the relative motion state between the target object outside the vehicle and the vehicle; when the relative motion state meets the potential danger state condition, obtain environmental information representing the current environmental state of the vehicle; based on the environmental information, generate a spray instruction for controlling the spray device on the vehicle; based on the spray instruction, control the spray device to spray outside the vehicle.

[0125] The method disclosed in the above embodiment of the present application can be applied to the processor 901, or implemented by the processor 901. The processor 901 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the hardware integrated logic circuit or software instructions in the processor 901. The above processor 901 can be a general processor, a digital signal processor (Digital Signal Processor, DSP), an application specific integrated circuit (Application Specific Integrated Circuit, ASIC), a field programmable gate array (Field Programmable Gate Array, FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present application can be implemented or executed. The general processor can be a microprocessor or the processor can also be any conventional processor, etc. The steps of the method disclosed in the embodiment of the present application can be directly embodied as a hardware decoding processor to execute, or the hardware and software units in the decoding processor can be executed. The software unit can be located in a mature storage medium in the field such as a random access memory, a flash memory, a read-only memory, a programmable read-only memory or an electrically erasable programmable memory, a register, etc. The storage medium is located in the memory 902, and the processor 901 reads the information in the memory 902 and completes the steps of the above method in combination with its hardware.

[0126] It is understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit may be implemented in one or more application specific integrated circuits (ASIC), digital signal processors (DSP), digital signal processing devices (DSPDevice, DSPD), programmable logic devices (PLD), field programmable gate arrays (FPGA), general purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the above functions of the present application, or a combination thereof.

[0127] For software implementation, the technology described above in this article can be implemented by a unit that performs the functions described above in this article. The software code can be stored in a memory and executed by a processor. The memory can be implemented in the processor or outside the processor.

[0128] The electronic device provided in this embodiment may be Fig. 9 The electronic device shown in can execute all the steps of the above-mentioned vehicle dangerous state prompting methods, thereby achieving the technical effects of the above-mentioned vehicle dangerous state prompting methods. Please refer to the above related description for details. For the sake of brevity, it will not be repeated here.

[0129] The embodiment of the present application also provides a storage medium (computer-readable storage medium). The storage medium here stores one or more programs. The storage medium may include a volatile memory, such as a random access memory; the memory may also include a non-volatile memory, such as a read-only memory, a flash memory, a hard disk or a solid-state drive; the memory may also include a combination of the above-mentioned types of memory.

[0130] When one or more programs in the storage medium can be executed by one or more processors, the vehicle dangerous state prompting method executed on the electronic device side can be implemented.

[0131] The processor is used to execute the program stored in the memory to implement the following steps of the vehicle dangerous state prompting method executed on the electronic device side:

[0132] Determine the relative motion state between the target object outside the vehicle and the vehicle; when the relative motion state meets the potential danger state condition, obtain environmental information representing the current environmental state of the vehicle; based on the environmental information, generate a spray instruction for controlling the spray device on the vehicle; based on the spray instruction, control the spray device to spray outside the vehicle.

[0133] The professionals should also be further aware that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented with electronic hardware, computer software, or a combination of the two. In order to clearly illustrate the interchangeability of hardware and software, the composition and steps of each example have been generally described in terms of function in the above description. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0134] The steps of the method or algorithm described in conjunction with the embodiments disclosed herein may be implemented using hardware, a software module executed by a processor, or a combination of the two. The software module may be placed in a random access memory (RAM), a memory, a read-only memory (ROM), an electrically programmable ROM, an electrically erasable programmable ROM, a register, a hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.

[0135] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0136] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest range consistent with the principles and novel features applied for herein.

Claims

1. A method for indicating a dangerous state of a vehicle, characterized in that: The method comprises: determining a relative motion state between a target object outside a vehicle and the vehicle; When the relative motion state meets the potential dangerous state condition, obtaining environmental information indicating the current environmental state of the vehicle; generating, based on the environmental information, a spray instruction for controlling a spray device on the vehicle; Based on the spray instruction, the spray device is controlled to spray outside the vehicle.

2. The method according to claim 1, characterized in that The environmental information includes a first temperature inside the vehicle and a second temperature outside the vehicle; The step of generating, based on the environmental information, a spray instruction for controlling a spray device on the vehicle comprises: If a result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, generating a first spray instruction for switching a spray source of the spray device to a heat exchanger on the vehicle; If the result obtained by subtracting the second temperature from the first temperature is less than the preset temperature difference threshold, a second spray instruction is generated for switching the spray source of the spray device to the refrigeration device on the vehicle.

3. The method according to claim 2, characterized in that If the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, generating a first spray instruction for switching the spray source of the spray device to the heat exchanger on the vehicle comprises: If the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, and the second temperature is less than or equal to a preset temperature threshold, a first injection instruction is generated for switching the spray source of the spray device to the heat exchanger on the vehicle and adjusting the injection rate of the spray device to a preset injection rate.

4. The method according to any one of claims 1 to 3, characterized in that: The environmental information includes a first air pressure inside the vehicle and a second air pressure outside the vehicle; The step of generating, based on the environmental information, a spray instruction for controlling a spray device on the vehicle comprises: determining a pressure difference between the first air pressure and the second air pressure; Determining the injection power corresponding to the air pressure difference based on a preset corresponding relationship between the air pressure difference and the injection rate; A third injection instruction corresponding to the injection power is generated.

5. A vehicle dangerous state prompting device, characterized in that: The device comprises: A determination module, used to determine the relative motion state between a target object outside the vehicle and the vehicle; An acquisition module, used for acquiring environmental information representing the current environmental state of the vehicle when the relative motion state meets the potential dangerous state condition; A generating module, for generating, according to the environmental information, a spray instruction for controlling a spray device on the vehicle; A control module is used to control the spray device to spray outside the vehicle based on the spray instruction.

6. A vehicle dangerous state prompt system, characterized in that: The system comprises: a controller, an environment monitoring sensor, and a spray device, wherein the controller is connected to the environment monitoring sensor and the spray device; The environment monitoring sensor is used to sense the current environment state of the vehicle to obtain environmental information; The controller is used to execute the vehicle dangerous state prompting method according to any one of claims 1 to 4, and send the generated injection instruction to the spray device; The spray device is used to spray outside the vehicle under the control of the spray instruction.

7. The system according to claim 6, characterized in that The environment monitoring sensor includes a temperature sensor, and the temperature sensor is used to sense a first temperature inside the vehicle and a second temperature outside the vehicle; the spray device includes a switching valve, a heat exchanger and a refrigeration device; The controller is also used for: If the result obtained by subtracting the second temperature from the first temperature is greater than or equal to a preset temperature difference threshold, a first injection instruction is generated, and the first injection instruction is sent to the switching valve and the heat exchanger; if the result obtained by subtracting the second temperature from the first temperature is less than the preset temperature difference threshold, a second injection instruction is generated, and the second injection instruction is sent to the switching valve and the refrigeration device; The switching valve is used to: connect the spray pipe of the spray device to the heat exchanger if the first spray instruction is received; The heat exchanger is used to: if the first injection instruction is received, perform a heat exchange function to flow the air in the vehicle to the outside of the vehicle; The switching valve is further used to: connect the spray pipe of the spray device to the refrigeration device if the second spray instruction is received; The refrigeration device is used to: if the second injection instruction is received, perform a refrigeration function and flow low-temperature gas to the outside of the vehicle.

8. The system according to claim 7, characterized in that The refrigeration device is also used for: If the second injection instruction is received, a refrigerant compression function is performed, and the compressed low-temperature refrigerant flows to the outside of the vehicle.

9. The system according to claim 6, characterized in that The environment monitoring sensor includes an air pressure sensor, and the air pressure sensor is used to sense a first air pressure inside the vehicle and a second air pressure outside the vehicle; the spray device includes a spray speed regulating device; The controller is further used to: determine the air pressure difference between the first air pressure and the second air pressure; Based on a preset corresponding relationship between the air pressure difference and the injection rate, determining a target injection rate corresponding to the air pressure difference; generating a third injection instruction corresponding to the injection rate, and sending the third injection instruction to the injection rate regulating device; The injection rate regulating device is used to adjust the injection rate of the spray to the outside of the vehicle to the target injection rate according to the third injection instruction.

10. A vehicle, characterized in that: A vehicle danger status warning system comprising the vehicle danger status warning system as described in any one of claims 6 to 9.

11. An electronic device, characterized in that: include: Memory for storing computer programs; A processor is used to execute the computer program stored in the memory, and when the computer program is executed, the vehicle dangerous state prompt method described in any one of claims 1 to 4 is implemented.

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