Vehicle emergency call method and system, vehicle and storage medium

Abstract

The invention provides a vehicle emergency call method and system, a vehicle and a storage medium. The vehicle emergency call method comprises the following steps: detecting communication quality of a first communication network; if the communication quality of the first communication network meets a first preset condition, dialing an emergency call to a preset call center based on the first communication network; and if the communication quality of the first communication network does not meet the first preset condition, dialing an emergency call to a preset call center based on a second communication network. According to the scheme, switching of the communication network is completed according to the communication quality of the communication network. And when the communication quality of the first communication network is poor, the second communication network is switched to dial the emergency call, so that the probability of successfully dialing the emergency call can be improved, and the safety of personnel in the vehicle can be guaranteed.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a vehicle emergency call method, a vehicle emergency call system, a vehicle, and a computer-readable storage medium. Background Art

[0002] The vehicle's emergency call (eCall) system is gradually becoming an important tool for ensuring road safety. The eCall system can make an emergency call to the emergency service center after an accident so that rescue can be obtained in time. However, if the communication quality of the communication network is poor, the emergency call may not be successfully made. Therefore, how to increase the probability of successfully making an emergency call to ensure the safety of people in the car is a technical problem that needs to be solved. Summary of the invention

[0003] The present application provides a vehicle emergency call method, system, vehicle and computer-readable storage medium to increase the probability of successfully dialing an emergency call, thereby ensuring the safety of people in the vehicle.

[0004] In a first aspect, a vehicle emergency call method is provided, including: detecting the communication quality of a first communication network; if the communication quality of the first communication network meets a first preset condition, making an emergency call to a preset call center based on the first communication network; if the communication quality of the first communication network does not meet the first preset condition, making an emergency call to the preset call center based on a second communication network.

[0005] As a possible implementation method, the vehicle emergency call method also includes: if the communication quality of the first communication network meets the second preset condition, sending the minimum data set to the preset call center based on the first communication network; if the communication quality of the first communication network does not meet the second preset condition, sending the minimum data set to the preset call center based on the second communication network.

[0006] As a possible implementation manner, the vehicle emergency call method further includes: if the communication quality of the first communication network meets a third preset condition, sending the minimum data set to a preset call center based on the first communication network and the second communication network.

[0007] As a possible implementation manner, the communication quality is determined based on signal strength and / or signal transmission delay.

[0008] As a possible implementation manner, the first communication network is a terrestrial communication network, and the second communication network is a satellite communication network; or, the first communication network is a satellite communication network, and the second communication network is a terrestrial communication network.

[0009] As a possible implementation method, before detecting the communication quality of the first communication network, the vehicle emergency call method also includes: generating an emergency call instruction if the vehicle collides or the emergency call button on the vehicle is pressed; detecting the communication quality of the first communication network includes: detecting the communication quality of the first communication network in response to the emergency call instruction.

[0010] In the second aspect, a vehicle emergency call system is provided, including: a detection module for detecting the communication quality of a first communication network; a first communication module for making an emergency call to a preset call center based on the first communication network if the communication quality of the first communication network meets a first preset condition; a second communication module for making an emergency call to a preset call center based on the second communication network if the communication quality of the first communication network does not meet the first preset condition.

[0011] As a possible implementation method, the first communication module is also used to send the minimum data set to the preset call center based on the first communication network if the communication quality of the first communication network meets the second preset condition; the second communication module is also used to send the minimum data set to the preset call center based on the second communication network if the communication quality of the first communication network does not meet the second preset condition.

[0012] As a possible implementation method, the first communication module is also used to send the minimum data set to the preset call center based on the first communication network if the communication quality of the first communication network meets the third preset condition; the second communication module is also used to send the minimum data set to the preset call center based on the second communication network if the communication quality of the first communication network meets the third preset condition.

[0013] As a possible implementation manner, the communication quality is determined based on signal strength and / or signal transmission delay.

[0014] As a possible implementation manner, the first communication network is a terrestrial communication network, and the second communication network is a satellite communication network; or, the first communication network is a satellite communication network, and the second communication network is a terrestrial communication network.

[0015] As a possible implementation, the detection module is specifically configured to detect the communication quality of the first communication network in response to an emergency call instruction, wherein the emergency call instruction is generated in response to a vehicle collision or an emergency call button on the vehicle being pressed.

[0016] In a third aspect, a vehicle emergency call system is provided, comprising: a memory for storing a program; and a processor for executing the program stored in the memory to execute the method as described in the first aspect or any one of the implementations of the first aspect.

[0017] In a fourth aspect, a vehicle is provided, comprising the vehicle emergency call system of the second aspect or the third aspect.

[0018] According to a fifth aspect, a computer-readable storage medium is provided, on which a program code for executing the method described in the first aspect or any one of the implementations of the first aspect is stored.

[0019] According to a sixth aspect, a computer program product is provided, comprising a program code for executing the method described in the first aspect or any one of the implementations of the first aspect.

[0020] The embodiment of the present application completes the switching of the communication network according to the communication quality of the communication network. When the communication quality of the first communication network is not good, switching to the second communication network to make an emergency call can increase the probability of successfully making an emergency call, thereby ensuring the safety of the people in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions.

[0022] Figure 1 This is an example diagram of the architecture of the eCall system.

[0023] Figure 2 yes Figure 1 An example diagram of the structure of the vehicle-mounted terminal equipment.

[0024] Figure 3 It can be applied to Figure 1 An example diagram of the system architecture of the ground communication network of the eCall system is shown.

[0025] Figure 4 It can be applied to Figure 1 An example diagram of the system architecture of a satellite communication network of the eCall system is shown.

[0026] Figure 5 It is a schematic flowchart of a vehicle emergency call method provided by an embodiment of the present application.

[0027] Figure 6 It is a schematic flowchart of a vehicle emergency call method provided by another embodiment of the present application.

[0028] Figure 7 It is a schematic flowchart of a vehicle emergency call method provided by another embodiment of the present application.

[0029] Figure 8 It is a schematic flow chart of a fusion emergency call method provided by an embodiment of the present application.

[0030] Fig. 9 It is a structural diagram of a vehicle emergency call system provided by an embodiment of the present application.

[0031] Fig.10 It is a structural diagram of a vehicle emergency call system provided in another embodiment of the present application. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. All other embodiments obtained based on the embodiments in the present application belong to the scope of protection of the present application.

[0033] The embodiments of the present application can be applied to any scenario involving vehicle emergency calls, such as the eCall system. For ease of understanding, the eCall system is first introduced.

[0034] Figure 1 The diagram shows the architecture of the eCall system. The eCall system includes: an on-board terminal device 120, a communication network 130 and an emergency service center 140. When a traffic accident or unexpected situation occurs, the on-board terminal device 120 automatically triggers the eCall or the user manually triggers the eCall to make an emergency call (also called an emergency rescue call) to the emergency service center 140 through a voice channel (also called a voice link) 100, and send the minimum data set to the emergency service center 140 through a data channel (also called a data link) 110. The emergency service center 140 receives the emergency call and the minimum data set from the eCall system, and is responsible for dispatching the rescue team to the accident site. By making an emergency call, the emergency service center can be notified immediately and the rescue procedure can be started. The above minimum data set refers to a set of basic and necessary information that needs to be sent when an emergency occurs. The content of the minimum data set usually includes but is not limited to the vehicle location, vehicle identification number, event type, number of passengers, vehicle status information, accident time, etc. By sending the minimum data set, rescue personnel can quickly understand the accident situation and take action.

[0035] The vehicle-mounted terminal device 120 may be any type of terminal device capable of performing eCall. Figure 2 FIG. 1 shows a possible structure of the vehicle-mounted terminal device 120. Figure 2As shown, the vehicle-mounted terminal device 120 may include a sensor 1210, a microcontroller 1220, a communication module 1230, and a human-computer interaction interface 1240. The sensor 1210 is used to detect a collision or other emergency situations. The microcontroller 1220 is used to process the data of the sensor 1210 and determine whether to trigger an emergency call. The communication module 1230 is used to establish communication between the vehicle-mounted terminal device 120 and the emergency service center 140 to make an emergency call to the emergency service center 140 and send a minimum data set to the emergency service center 140. The human-computer interaction interface 1240 allows the occupants to manually trigger an emergency call or cancel an automatically triggered emergency call.

[0036] The communication network 130 is used to establish a connection between the eCall system and the emergency service center. The communication quality of the communication network 130 directly affects the success rate of the eCall system in establishing an emergency call, the accuracy of data transmission, the clarity of voice during calls, the response time of the eCall system, and the reliability of the eCall system, which ultimately affects the rescue efficiency. Poor communication quality of the communication network 130 may result in the failure to successfully establish an emergency call, the loss or error of key data in the minimum data set, and unclear voice during voice calls, thereby delaying the rescue operation. Communication quality covers many aspects such as communication speed, communication accuracy, communication security, and communication reliability. Communication speed refers to the ability of communication to overcome distance intervals, that is, the time required for information to travel from the sender to the receiver. Communication accuracy refers to the fact that the content of the communication remains unchanged during the transmission process, that is, the information is accurately delivered to the recipient. Communication security refers to the fact that information is not accessed or tampered with without authorization during transmission. Communication reliability refers to the stability and continuity of communication services.

[0037] The communication network 130 may be a terrestrial communication network or a satellite communication network. Figure 3 A system architecture diagram of a terrestrial communication network that can be applied to the eCall system is shown. Figure 4The system architecture diagram of the satellite communication network that can be applied to the eCall system is shown. The ground communication network can be, for example, a cellular communication network, a wireless metropolitan area network, etc. The satellite communication network can be, for example, a global satellite communication network, a Tiantong satellite communication network, etc. The ground communication network and the satellite communication network each have their own advantages and limitations, and the difference in communication quality between the two is mainly reflected in the following aspects. Since the signal propagation distance of ground communication is shorter than that of satellite communication, the delay of ground communication is usually much lower than that of satellite communication. The ground communication network is usually able to provide higher bandwidth, while the bandwidth that the satellite communication network can provide is limited. The satellite communication network can cover a wider area, including places that the ground communication network cannot cover. The cost of establishing and maintaining a satellite communication network is usually higher than that of a ground communication network, so the cost of using a satellite communication network for communication is higher than that of a ground communication network. The ground communication network is usually superior to the satellite communication network in terms of stability and reliability, especially in severe weather conditions.

[0038] The emergency service center 140 can be a public safety answering point (PSAP) or a third-party rescue platform. PSAP refers to an emergency service agency established by the government, which is responsible for receiving emergency calls from the vehicle emergency call system, receiving and processing minimum data set information, and dispatching rescue resources. A third-party rescue platform is a platform operated by a private enterprise or a professional rescue service agency. A third-party rescue platform can cooperate with automobile manufacturers to provide users with additional rescue services and support. The responsibilities of a third-party rescue platform are similar to those of a PSAP. When a vehicle has an accident, emergency rescue services can be provided to the vehicle separately by a PSAP or a third-party rescue platform. Alternatively, PSAP and a third-party rescue platform can collaborate through data sharing or joint response to jointly provide emergency rescue services to the vehicle.

[0039] From the above description, it can be seen that in order to ensure that the emergency service center can be notified quickly in an emergency so as to start the rescue procedure as soon as possible, an emergency call needs to be made. However, if the communication quality of the communication network currently used by the vehicle is poor, it may result in failure to successfully make an emergency call. Therefore, how to increase the probability of successfully making an emergency call to ensure the safety of people in the car is a technical problem that needs to be solved.

[0040] In response to the above problems, an embodiment of the present application provides a vehicle emergency call method. When using this method to make an emergency call, the communication network is switched according to the communication quality of the communication network. When the communication quality of the first communication network is good, the first communication network is used to make the emergency call. When the communication quality of the first communication network is not good, the second communication network is switched to make the emergency call. In this way, the probability of successfully making an emergency call can be increased, thereby ensuring the safety of people in the vehicle.

[0041] Combine the following Figure 5 , the vehicle emergency call method provided in an embodiment of the present application is described in detail.

[0042] like Figure 5 As shown, an embodiment of the present application provides a vehicle emergency call method, which includes the following steps S510 to S530.

[0043] In step S510, the communication quality of the first communication network is detected. The first communication network here can be the communication network currently used by the vehicle, or it can be the communication network used by the vehicle by default. The embodiment of the present application does not limit the type of the first communication network, as long as the vehicle can communicate with the outside world through the first communication network. For example, the first communication network can be a terrestrial communication network (such as a terrestrial cellular communication network). For another example, the first communication network can be a satellite communication network (such as a satellite communication network based on Tiantong satellite or Beidou satellite). The quality of the communication of the first communication network directly determines whether the first communication network can be used to make an emergency call. Therefore, in an embodiment of the present application, before making an emergency call, the communication quality of the first communication network is first detected.

[0044] There are many indicators that can measure communication quality. These indicators may include, for example, one or more of signal strength, signal-to-noise ratio, delay, jitter, packet loss rate, throughput, bit error rate, bandwidth, etc. In the eCall scenario, since emergency calls mainly rely on voice communication and a small amount of data transmission, the eCall scenario has higher requirements on the communication network in terms of signal strength and signal transmission delay. Optionally, in some embodiments, the communication quality of the first communication network may be determined based on signal strength. Optionally, in other embodiments, the communication quality of the first communication network may be determined based on signal transmission delay. Optionally, in other embodiments, the communication quality of the first communication network may be determined based on signal strength and signal transmission delay.

[0045] The communication quality of the first communication network can be detected in a variety of ways, which are not limited in the embodiments of the present application. In some embodiments, a channel state information reference signal (CSI-RS) can be used to measure the communication quality of the current communication network. In other embodiments, communication network monitoring software can be used to monitor the communication quality of the first communication network.

[0046] In step S520, if the communication quality of the first communication network meets the first preset condition, an emergency call is made to a preset call center based on the first communication network.

[0047] The first preset condition may include one condition or multiple conditions. The specific form of the first preset condition is related to the above-mentioned communication quality measurement indicator. For example, if the communication quality is measured based on signal strength, the first preset condition may include that the signal strength is greater than or equal to a first threshold. For another example, if the communication quality is measured based on transmission delay, the first preset condition may include that the transmission delay of the signal is less than or equal to a second threshold. If the communication quality is measured based on both signal strength and transmission delay, the first preset condition may include that the signal strength is greater than or equal to the first threshold, and the transmission delay of the signal is less than or equal to the second threshold.

[0048] In step S530, if the communication quality of the first communication network does not meet the first preset condition, an emergency call is made to a preset call center based on the second communication network.

[0049] The second communication network here can be a communication network that can provide alternative communication services when the communication quality of the first communication network is poor. The embodiment of the present application does not limit the type of the second communication network, as long as the vehicle can communicate with the outside world through the second communication network. For example, the second communication network can be a terrestrial communication network (such as a terrestrial cellular communication network). For another example, the second communication network can be a satellite communication network (such as a satellite communication network based on Tiantong satellite or Beidou satellite).

[0050] The type of the second communication network may be the same as or different from the type of the first communication network. Optionally, in some embodiments, the first communication network and the second communication network may both be terrestrial communication networks. For example, the first communication network is a cellular communication network provided by a certain operator, and the second communication network is a cellular communication network provided by another operator. Alternatively, the first communication network is a 5G communication network, and the second communication network is a 2G communication network. Optionally, in other embodiments, the first communication network and the second communication network may both be satellite communication networks. For example, the first communication network is a Tiantong satellite communication network, and the second communication network is a Beidou satellite communication network. Optionally, in other embodiments, one of the first communication network and the second communication network is a satellite communication network and the other is a terrestrial communication network.

[0051] As a more specific example, the first communication network is a cellular communication network, the second communication network is a Tiantong satellite communication network, and the first preset condition is that the signal strength is greater than or equal to a first threshold. When it is detected that the signal strength of the cellular communication network is greater than or equal to the first threshold, an emergency call is made to a preset call center through the cellular communication network. When it is detected that the signal strength of the cellular communication network is less than the first threshold, an emergency call is made to a preset call center through the Tiantong satellite communication network.

[0052] It should be understood that the preset call center mentioned in step S520 and step S530 refers to a system or platform that can respond to the emergency call and provide rescue services. The preset call center can be, for example, the PSAP or third-party rescue platform mentioned above.

[0053] In an embodiment of the present application, when it is detected that the communication quality of the first communication network is good, the first communication network is used preferentially to make an emergency call. When it is detected that the communication quality of the first communication network is poor, the emergency call is switched to the second communication network. It can be seen that the present application realizes the intelligent switching of the emergency call language link according to the communication quality. In this way, the probability of successfully making an emergency call can be increased, thereby ensuring the safety of the people in the car.

[0054] As mentioned in the description of the eCall system above, in addition to making emergency calls, eCall also involves sending a minimum data set. Therefore, in order to further improve the rescue success rate, a minimum data set can also be sent to a preset call center. There are many ways to send a minimum data set. The present application embodiment provides the following two possible implementations. Figure 6 and Figure 7 Provide a detailed introduction.

[0055] Figure 6 This is the first possible transmission method of the minimum data set provided in the embodiment of the present application. Figure 6 In step S610 and step S620, if the communication quality of the first communication network meets the second preset condition, the minimum data set is sent to the preset call center based on the first communication network; if the communication quality of the first communication network does not meet the second preset condition, the minimum data set is sent to the preset call center based on the second communication network.

[0056] The second preset condition may include one condition or multiple conditions. The second preset condition is related to a measurement indicator of communication quality. For example, if the communication quality is measured based on signal strength, the second preset condition may include that the signal strength is greater than or equal to a third threshold. Alternatively, if the communication quality is measured based on transmission delay, the second preset condition may include that the transmission delay of the signal is less than a fourth threshold. If the communication quality is measured based on both signal strength and transmission delay, the first preset condition may include that the signal strength is greater than or equal to the third threshold, and the transmission delay of the signal is less than the fourth threshold.

[0057] As a more specific example, the first communication network is a cellular communication network, the second communication network is a Tiantong satellite communication network, and the second preset condition is that the signal strength is greater than or equal to a third threshold. When it is detected that the signal strength of the cellular communication network is greater than or equal to the third threshold, the minimum data set is directly sent to the preset call center through the cellular communication network. When it is detected that the signal strength of the cellular communication network is less than the third threshold, the minimum data set is sent to the preset call center through the Tiantong satellite communication network.

[0058] It should be understood that the second preset condition mentioned here may be different from the first preset condition mentioned above. That is to say, the communication network for making an emergency call and the communication network for sending a minimum data set may be selected based on different preset conditions, respectively. In the embodiment of the present application, the reason why the first preset condition and the second preset condition are set to different conditions is mainly because of the different signal quality requirements for voice calls and data transmission. Generally speaking, voice calls have higher requirements for signal quality, and data transmission has relatively lower requirements for signal quality.

[0059] Alternatively, in some other embodiments, the second preset condition and the first preset condition may be the same. That is, the communication network for making an emergency call and the communication network for sending the minimum data set may be selected based on the same preset condition. Setting the first preset condition and the second preset condition to the same condition may simplify implementation complexity.

[0060] In the first implementation, when it is detected that the communication quality of the first communication network is good, the first communication network is used to send the minimum data set. When it is detected that the communication quality of the first communication network is poor, the second communication network is used to send the minimum data set. In this way, a suitable communication network can be selected to send the minimum data set, the probability of successfully sending the minimum data set is increased, and rescue-related information is provided to rescuers in a timely manner, thereby improving rescue efficiency.

[0061] Figure 7 The second possible transmission method of the minimum data set provided in the embodiment of the present application. Figure 7 In step S710, if the communication quality of the first communication network meets the third preset condition, the minimum data set is sent to the preset call center based on the first communication network and the second communication network.

[0062] The third preset condition may include one condition or multiple conditions. The third preset condition may be related to a measurement index of communication quality. For example, if the communication quality is measured based on signal strength, the third preset condition may include that the signal strength is greater than the fifth threshold. Alternatively, if the communication quality is measured based on transmission delay, the third preset condition may include that the transmission delay of the signal is less than the sixth threshold. If the communication quality is measured based on both signal strength and transmission delay, the third preset condition may include that the signal strength is greater than the fifth threshold and the transmission delay of the signal is less than the sixth threshold. As a more specific example, the first communication network is a cellular communication network, and the second communication network is a Tiantong satellite communication network. If the signal strength of the cellular communication network is greater than or equal to the first threshold, an emergency call is made to a preset call center through the voice channel of the cellular communication network, and a minimum data set is sent to the preset call center through the data channel of the cellular communication network and the data channel of the Tiantong satellite communication network. If the signal strength of the cellular communication network is less than the first threshold and greater than the fifth threshold, an emergency call is made to the preset call center through the voice channel of the Tiantong satellite communication network, and a minimum data set is sent to the preset call center through the data channel of the cellular communication network and the data channel of the Tiantong satellite communication network.

[0063] It can be seen that the second implementation can use the first communication network and the second communication network simultaneously to send the minimum data set, which can increase the transmission reliability of the minimum data set.

[0064] As mentioned above, one of the first communication network and the second communication network is a satellite communication network, and the other is a terrestrial communication network. In some embodiments, the first communication network can be set as a terrestrial communication network, and the second communication network can be set as a satellite communication network; in other embodiments, the first communication network can be set as a satellite communication network, and the second communication network can be set as a terrestrial communication network. The following is a more detailed example of the setting method of the first communication network and the second communication network in combination with two scenarios.

[0065] As an example, when the vehicle is traveling in cities and densely populated areas, the ground communication network can be set as the default communication network (i.e., the first communication network) because the ground communication network has a wide coverage and can provide high signal strength. When a natural disaster (such as an earthquake) occurs, the ground communication network cannot provide communication services due to damage to the infrastructure on the ground. At this time, an emergency call can be made or a minimum data set can be sent through the satellite communication network.

[0066] As another example, when the vehicle is mainly traveling in remote areas (such as deserts, remote mountainous areas, etc.), since the communication quality of the satellite communication network in remote areas is generally better than the communication quality of the ground communication network, the satellite communication network can be set as the default communication network (i.e., the first communication network). When the weather changes suddenly (such as sudden heavy rain), the bad weather may cause the communication quality of the satellite communication network to drop sharply, or even cause the communication quality of the satellite communication network to be inferior to that of the ground communication network. At this time, an emergency call can be made or a minimum data set can be sent through the ground communication network.

[0067] In the above embodiment, the satellite communication network and the ground communication network are integrated for emergency calls, and the advantages of the satellite communication network and the ground communication network are complemented to provide a more comprehensive and reliable communication service, thereby further improving the rescue efficiency. When the above two implementation methods are adopted, the vehicle emergency call method provided in the embodiment of the present application can be called an emergency call method integrating vehicle-mounted satellite communication and ground communication.

[0068] It should be understood that Figure 5 The method may be triggered based on an emergency call instruction. That is, in response to the emergency call instruction, the communication quality of the first communication network may be detected, and based on the detection result, the execution Figure 5The remaining steps shown. The emergency call instruction can be generated by passive triggering or actively triggering. Optionally, in some embodiments, the user can actively trigger the generation of an emergency call instruction by pressing a preset emergency call button (such as an "SOS" button). Optionally, in other embodiments, when the vehicle is in a preset emergency call scenario (such as a car crash), the generation of an emergency call instruction is passively triggered. For example, it can be determined whether the vehicle is in a preset emergency call scenario by judging whether the vehicle's airbag is deployed. If the vehicle's airbag is deployed, it can be determined that the vehicle is in a preset emergency call scenario.

[0069] Combine the following Figure 8 , the vehicle emergency call method provided in the embodiment of the present application is described in more detail. Figure 8 The method may be performed by a vehicle-mounted terminal device, and the vehicle-mounted terminal device may have Figure 2 In addition, in the following description, the first communication network is a terrestrial cellular network, the second communication network is a Tiantong satellite communication network, the first preset condition is that the signal strength is greater than or equal to a first threshold, and the second preset condition is that the signal strength is greater than or equal to a third threshold, wherein the first threshold is greater than the third threshold.

[0070] like Figure 8 As shown, in step S810, the sensor 1210 in the vehicle terminal device 120 detects whether the airbag of the vehicle is deployed, and sends the detection result to the microcontroller 1220. Alternatively, the human-computer interaction interface 1240 detects whether the user manually triggers the SOS, and sends the detection result to the microcontroller 1220. The microcontroller 1220 determines whether the vehicle has collided or whether the user has manually triggered the SOS based on the received detection result. If the microcontroller 1220 determines that the vehicle has collided or the user has manually triggered the SOS, step S820 is executed.

[0071] In step S820, the microcontroller 1220 sends a signal to the communication network monitoring software ( Figure 2 After receiving the control instruction, the communication network monitoring software obtains the signal strength of the ground cellular network and feeds the obtained data back to the microcontroller 1220.

[0072] In step S830, the microcontroller 1220 determines the magnitude relationship between the signal strength of the cellular communication network and the first threshold and the third threshold according to the received data. If the signal strength is determined to be greater than or equal to the first threshold, the communication module 1230 is controlled to execute step S840. If the signal strength is determined to be greater than or equal to the third threshold and less than the first threshold, the communication module 1230 is controlled to execute step S850. If the signal strength is determined to be less than the third threshold, the communication module 1230 is controlled to execute step S860.

[0073] In step S840 , the communication module 1230 makes an emergency call to the PSAP 140 through the voice channel of the terrestrial cellular network, and sends the minimum data set to the PSAP 140 through the data channel of the terrestrial cellular network.

[0074] In step S850, the communication module 1230 makes an emergency call to the PSAP 140 via the voice channel of the Tiantong satellite network, and sends the minimum data set to the PSAP 140 via the data channel of the terrestrial cellular network.

[0075] In step S860, the communication module 1230 makes an emergency call to the PSAP 140 through the voice channel of the Tiantong satellite network, and sends the minimum data set to the PSAP 140 through the data channel of the Tiantong satellite network.

[0076] In the above example, the first communication network is a terrestrial cellular network, and the second communication network is a Tiantong satellite network. Therefore, the emergency call method in the above example can be called an emergency call method integrating the vehicle-mounted Tiantong satellite network and the terrestrial cellular network.

[0077] Combination of the above Figures 5 to 8 , describes in detail an embodiment of the vehicle emergency call method provided by the present application. The following describes in detail an embodiment of the device of the present application. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment. Therefore, for the parts not described in detail, please refer to the description of the previous method embodiment.

[0078] The embodiment of the present application further provides a vehicle emergency call system 90, which is used to execute the vehicle emergency call method mentioned above. Fig. 9 FIG. 9 is a schematic diagram showing the structure of a vehicle emergency call system 90 provided in an embodiment of the present application. Fig. 9 As shown, the vehicle emergency call system 90 includes a detection module 910 , a first communication module 920 , and a second communication module 930 .

[0079] The detection module 910 is used to detect the communication quality of the first communication network.

[0080] The first communication module 920 is configured to make an emergency call to a preset call center based on the first communication network if the communication quality of the first communication network meets a first preset condition.

[0081] The second communication module 930 is configured to make an emergency call to a preset call center based on the second communication network if the communication quality of the first communication network does not meet the first preset condition.

[0082] As a possible implementation method, the first communication module 920 is also used to send the minimum data set to the preset call center based on the first communication network if the communication quality of the first communication network meets the second preset condition; the second communication module 930 is also used to send the minimum data set to the preset call center based on the second communication network if the communication quality of the first communication network does not meet the second preset condition.

[0083] As a possible implementation method, the first communication module 920 is also used to send the minimum data set to the preset call center based on the first communication network if the communication quality of the first communication network meets the third preset condition; the second communication module 930 is also used to send the minimum data set to the preset call center based on the second communication network if the communication quality of the first communication network meets the third preset condition.

[0084] As a possible implementation manner, the communication quality is determined based on signal strength and / or signal transmission delay.

[0085] As a possible implementation manner, the first communication network is a terrestrial communication network, and the second communication network is a satellite communication network; or, the first communication network is a satellite communication network, and the second communication network is a terrestrial communication network.

[0086] As a possible implementation, the detection module 910 is specifically used to detect the communication quality of the first communication network in response to an emergency call instruction, wherein the emergency call instruction is generated in response to a vehicle collision or an emergency call button on the vehicle being pressed.

[0087] The embodiment of the present application also provides a vehicle emergency call system 100, which is used to execute the vehicle emergency call method mentioned above. Fig.10 FIG. 1 shows a schematic diagram of the structure of a vehicle emergency call system 100 provided in an embodiment of the present application. Fig.10 As shown, the vehicle emergency call system 100 includes a memory 1010 and a processor 1020 .

[0088] The memory 1010 is used to store programs.

[0089] The processor 1020 is used to execute the program stored in the memory 1010 to execute the vehicle emergency call method in any of the above embodiments.

[0090] An embodiment of the present application further provides a vehicle, comprising the above-mentioned vehicle emergency call system 90 or vehicle emergency call system 100 .

[0091] The embodiment of the present application further provides a computer-readable storage medium having a program code stored thereon, and the program code can be used to execute the vehicle emergency call method in any of the above embodiments.

[0092] The embodiment of the present application further provides a computer program product, which includes program code for executing the vehicle emergency call method in any of the above embodiments.

[0093] It should be understood that in the embodiment of the present application, determining B based on A does not mean determining B only based on A, but B can also be determined based on A and / or other information.

[0094] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0095] It should be understood that the term "and / or" in this article is only a description of the association relationship of the 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 article generally indicates that the associated objects before and after are in an "or" relationship.

[0096] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0097] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0098] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0099] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0100] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can read or a data storage device such as a server, a data center, etc. that contains one or more available media integrated. Available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital video discs (DVD)), or semiconductor media (eg, solid state disks (SSD)).

[0101] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A vehicle emergency call method, characterized in that: include: detecting the communication quality of the first communication network; If the communication quality of the first communication network meets a first preset condition, making an emergency call to a preset call center based on the first communication network; If the communication quality of the first communication network does not meet the first preset condition, an emergency call is made to the preset call center based on the second communication network.

2. The method according to claim 1, characterized in that The method further comprises: If the communication quality of the first communication network meets a second preset condition, sending the minimum data set to the preset call center based on the first communication network; If the communication quality of the first communication network does not meet the second preset condition, the minimum data set is sent to the preset call center based on the second communication network.

3. The method according to claim 1, characterized in that The method further comprises: If the communication quality of the first communication network meets a third preset condition, a minimum data set is sent to a preset call center based on the first communication network and the second communication network.

4. The method according to any one of claims 1 to 3, characterized in that The communication quality is determined based on signal strength and / or signal transmission delay.

5. The method according to any one of claims 1 to 3, characterized in that: The first communication network is a terrestrial communication network, and the second communication network is a satellite communication network; or, The first communication network is a satellite communication network, and the second communication network is a terrestrial communication network.

6. The method according to any one of claims 1 to 3, characterized in that Before detecting the communication quality of the first communication network, the method further includes: generating an emergency call instruction if the vehicle is involved in a collision or an emergency call button on the vehicle is pressed; The detecting the communication quality of the first communication network comprises: In response to the emergency call instruction, the communication quality of the first communication network is detected.

7. A vehicle emergency call system, characterized in that: include: A detection module, used to detect the communication quality of the first communication network; A first communication module, configured to make an emergency call to a preset call center based on the first communication network if the communication quality of the first communication network meets a first preset condition; The second communication module is configured to make an emergency call to the preset call center based on the second communication network if the communication quality of the first communication network does not meet the first preset condition.

8. The system according to claim 7, characterized in that: The first communication module is further configured to send the minimum data set to the preset call center based on the first communication network if the communication quality of the first communication network meets a second preset condition; The second communication module is further configured to send the minimum data set to the preset call center based on the second communication network if the communication quality of the first communication network does not meet the second preset condition.

9. The system according to claim 7, characterized in that: The first communication module is further configured to send the minimum data set to a preset call center based on the first communication network if the communication quality of the first communication network meets a third preset condition; The second communication module is further configured to send the minimum data set to a preset call center based on the second communication network if the communication quality of the first communication network meets the third preset condition.

10. The system according to any one of claims 7 to 9, characterized in that The communication quality is determined based on signal strength and / or signal transmission delay.

11. The system according to any one of claims 7 to 9, characterized in that: The first communication network is a terrestrial communication network, and the second communication network is a satellite communication network; or, The first communication network is a satellite communication network, and the second communication network is a terrestrial communication network.

12. The system according to any one of claims 7 to 9, characterized in that: The detection module is specifically configured to detect the communication quality of the first communication network in response to an emergency call instruction, wherein the emergency call instruction is generated in response to a collision of the vehicle or a pressing of an emergency call button on the vehicle.

13. A vehicle emergency call system, characterized in that: include: Memory, used to store programs; A processor, configured to execute the program stored in the memory to perform the method according to any one of claims 1 to 6.

14. A vehicle, characterized in that: Comprising the vehicle emergency call system as claimed in claim 7 or 13.

15. A computer-readable storage medium, characterized in that: Code for executing the method according to any one of claims 1 to 6 is stored thereon.

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