Vehicle operation noise monitoring device data reliability transmission method and system

Abstract

The invention discloses a data reliability transmission method and system for a vehicle operation noise monitoring device. The method comprises the following steps: deploying an intelligent virtual gateway at a vehicle-mounted controller; a noise monitoring device installed on the vehicle is in network connection with the intelligent virtual gateway; the intelligent virtual gateway distributes an IP (Internet Protocol) and a DNS (Domain Name Server) to the noise monitoring device through a DHCP (Dynamic Host Configuration Protocol) service and a DNS service, controls the noise monitoring device to upload a target path of monitoring data, and sets the target path as a far-end server or a vehicle-mounted controller; after the noise monitoring device is started, the intelligent virtual gateway tries to be connected with a far-end server through a virtual network card by using a TCP (Transmission Control Protocol); according to the invention, a distributed scheme is creatively used for data reporting of the noise monitoring device, data processing is divided into a local vehicle-mounted controller and a remote server, the performance of local equipment is fully utilized, and the influence of network quality problems on noise monitoring is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle noise monitoring, and in particular to a data reliability transmission method and system for a vehicle operation noise monitoring device. Background Art

[0002] Automobiles are complex industrial products with a large number of mechanical systems, such as transmission systems, driving systems, steering systems, braking systems, etc. Consumers and OEMs attach great importance to the safety and comfort of automobile operation. Automobile safety is generally divided into active safety, passive safety, post-accident safety and ecological safety. In many cases, the assembly relationship of the mechanical structure of the vehicle will change in the early stage of a failure, resulting in abnormal vehicle operation noise. Collecting these abnormal vehicle operation noise data and accumulating enough data can be used for fault analysis and diagnosis by other systems. However, the vehicle operation environment is complex, and the network connection quality is not good in some scenarios, or even there is no network at all. Therefore, the collected vehicle operation noise data is very likely to be unable to be judged by uploading the server to determine whether it meets the requirements. This leads to the need to increase the sampling volume in order to collect vehicle operation noise data that meets the requirements of fault analysis and diagnosis. This method will cause unnecessary time and economic losses.

[0003] In view of the above, it is necessary to improve the current noise data uploading scheme. Summary of the invention

[0004] In view of the technical problems pointed out in the above background technology, the purpose of the present invention is to provide a data reliability transmission method and system for a vehicle running noise monitoring device.

[0005] To achieve the purpose of the present invention, the technical solution provided by the present invention is as follows: The present invention provides a data reliability transmission method for a vehicle operation noise monitoring device, comprising the following steps: Step S1: deploying an intelligent virtual gateway on the vehicle controller; the intelligent virtual gateway has its own DHCP service and DNS service and provides services to the outside through its own virtual network card; Step S2: Connecting the noise monitoring device installed in the vehicle to the intelligent virtual gateway through a network; Step S3: The intelligent virtual gateway allocates IP and DNS to the noise monitoring device through its own DHCP service and DNS service, and controls the target path for the noise monitoring device to upload monitoring data, and sets the target path to a remote server or a vehicle-mounted controller; Step S4: After the noise monitoring device is started, the intelligent virtual gateway attempts to connect to the remote server using TCP through the virtual network card; If the connection is successful, the noise monitoring device is controlled to upload the monitoring data to the remote server; If the connection fails, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and reconnect after a first preset time. If the reconnection is successful, the noise monitoring device is controlled to upload to the remote server, and the monitoring data previously saved in the vehicle controller due to failure to connect to the remote server is re-uploaded to the remote server; When the noise monitoring device is successfully connected to the remote server, the steps of monitoring the quality of the current network connection are as follows: Use TCP keepalive messages to keep the noise monitoring device and the remote server connected to the current network; The packet loss of TCP keepalive messages is counted and the basic packet loss rate is calculated; if the basic packet loss rate is greater than a first preset threshold, the TCP keepalive messages are forced to be sent at a high frequency, and the instantaneous packet loss rate is calculated. If the instantaneous packet loss rate reaches a second preset threshold, the current network connection between the noise monitoring device and the remote server is forcibly disconnected, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and an attempt to reconnect is made after a second preset time.

[0006] Second aspect The present invention provides a data reliability transmission system for a vehicle operation noise monitoring device, comprising a vehicle-mounted controller, an intelligent virtual gateway and a remote server; the system executes the following method: Step S1: deploying an intelligent virtual gateway on the vehicle controller; the intelligent virtual gateway has its own DHCP service and DNS service and provides services to the outside through its own virtual network card; Step S2: Connecting the noise monitoring device installed in the vehicle to the intelligent virtual gateway through a network; Step S3: The intelligent virtual gateway allocates IP and DNS to the noise monitoring device through its own DHCP service and DNS service, and controls the target path for the noise monitoring device to upload monitoring data, and sets the target path to a remote server or a vehicle-mounted controller; Step S4: After the noise monitoring device is started, the intelligent virtual gateway attempts to connect to the remote server using TCP through the virtual network card; If the connection is successful, the noise monitoring device is controlled to upload the monitoring data to the remote server; If the connection fails, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and reconnect after a first preset time. If the reconnection is successful, the noise monitoring device is controlled to upload to the remote server, and the monitoring data previously saved in the vehicle controller due to failure to connect to the remote server is re-uploaded to the remote server; When the noise monitoring device is successfully connected to the remote server, the steps of monitoring the quality of the current network connection are as follows: Use TCP keepalive messages to keep the noise monitoring device and the remote server connected to the current network; The packet loss of TCP keepalive messages is counted and the basic packet loss rate is calculated; if the basic packet loss rate is greater than a first preset threshold, the TCP keepalive messages are forced to be sent at a high frequency, and the instantaneous packet loss rate is calculated. If the instantaneous packet loss rate reaches a second preset threshold, the current network connection between the noise monitoring device and the remote server is forcibly disconnected, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and an attempt to reconnect is made after a second preset time.

[0007] Compared with the prior art, the present invention has the following beneficial effects: The present invention creatively uses a distributed solution for data reporting of a noise monitoring device, divides data processing into a local vehicle-mounted controller and a remote server, fully utilizes the performance of local devices, reduces the impact of network quality issues on noise monitoring, and uses virtual network devices such as virtual gateways to bypass operating systems and firewalls to communicate with noise monitoring devices, and maintain network connections without adding special message processing. A method for monitoring network connection quality is specifically provided, which can effectively ensure data upload of noise monitoring devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 A schematic diagram of a method flow chart provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0009] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0010] In recent years, distributed solutions have received more and more attention because they can provide better reliability, faster speed, better benefit from local computing resources, and excellent fault recovery. Based on distributed collection of vehicle operation noise data, the intelligent virtual gateway can route some logic with high real-time requirements to the local area, and use local computing resources to allow vehicles to operate in various complex scenarios. Even when the network connection quality is poor, it can also give a real-time judgment on whether the vehicle operation noise data meets the requirements, which can greatly improve the flexibility of collection and help collectors collect vehicle operation noise data that meets the requirements more quickly. The implementation of this method will greatly improve the efficiency of vehicle operation noise collection and shorten the R&D cycle of related products.

[0011] like Figure 1 As shown, this embodiment provides a data reliability transmission method for a vehicle running noise monitoring device, comprising the following steps: Step S1: deploying an intelligent virtual gateway on the vehicle controller; the intelligent virtual gateway has its own DHCP service and DNS service and provides services to the outside through its own virtual network card; It should be noted that the intelligent virtual gateway is a software, not a hardware device, and can be deployed in a Windows environment. Since it uses a virtual network device, no additional configuration is required.

[0012] Step S2: Connecting the noise monitoring device installed in the vehicle to the intelligent virtual gateway through a network; The noise monitoring device is connected to the intelligent virtual gateway through a network connection directly via a network cable or wirelessly.

[0013] Step S3: The intelligent virtual gateway allocates IP and DNS to the noise monitoring device through its own DHCP service and DNS service, and controls the target path for the noise monitoring device to upload monitoring data, and sets the target path to a remote server or a vehicle-mounted controller; Step S4: After the noise monitoring device is started, the intelligent virtual gateway attempts to connect to the remote server using TCP through the virtual network card; If the connection is successful, the noise monitoring device is controlled to upload the monitoring data to the remote server; If the connection fails, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller and try to reconnect after a first preset time. If the reconnection is successful, the noise monitoring device is controlled to upload to the remote server and the monitoring data previously saved in the vehicle controller due to failure to connect to the remote server is re-uploaded to the remote server; the first preset time is 1, 2 or 3 minutes.

[0014] When the noise monitoring device is successfully connected to the remote server, the steps of monitoring the quality of the current network connection are as follows: Use TCP's keepalive message to keep the current network connection between the noise monitoring device and the remote server alive. Because TCP's keepalive will not affect the actual communication content, this heartbeat message can keep the connection alive without additional processing. It is mainly used to keep the Internet connection alive instead of the actual business connection. However, because TCP's keepalive is controlled by the operating system, it can be sent dynamically by bypassing the operating system through the virtual network card, and this method brings other benefits.

[0015] The packet loss of TCP keepalive messages is counted and the basic packet loss rate is calculated. If the basic packet loss rate is greater than the first preset threshold, the TCP keepalive messages are forced to be sent at a high frequency, and the instantaneous packet loss rate is calculated. If the instantaneous packet loss rate reaches the second preset threshold, the current network connection between the noise monitoring device and the remote server is forcibly disconnected, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and an attempt is made to reconnect after the second preset time, and the above scheme is repeated.

[0016] It should be noted that if the basic packet loss rate is greater than the first preset threshold, specifically, TCP keepalive messages are forced to be sent at one packet per second, and 10 packets are sent. If 3 or more packets are lost, the instantaneous packet loss rate reaches more than 30%, and the heartbeat message loss is serious, the connection with the remote server is forced to be disconnected, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and try to connect again after one minute.

[0017] It should be noted that the first preset threshold is 5%.

[0018] It should be noted that the second preset threshold is 30%.

[0019] It should be noted that the second preset time may be 1, 2 or 3 minutes.

[0020] Corresponding to the method, this embodiment provides a data reliability transmission system for a vehicle operation noise monitoring device, including an on-board controller, an intelligent virtual gateway, and a remote server; the system executes the following method: Step S1: deploying an intelligent virtual gateway on the vehicle controller; the intelligent virtual gateway has its own DHCP service and DNS service and provides services to the outside through its own virtual network card; Step S2: Connecting the noise monitoring device installed in the vehicle to the intelligent virtual gateway through a network; Step S3: The intelligent virtual gateway allocates IP and DNS to the noise monitoring device through its own DHCP service and DNS service, and controls the target path for the noise monitoring device to upload monitoring data, and sets the target path to a remote server or a vehicle-mounted controller; Step S4: After the noise monitoring device is started, the intelligent virtual gateway attempts to connect to the remote server using TCP through the virtual network card; If the connection is successful, the noise monitoring device is controlled to upload the monitoring data to the remote server; If the connection fails, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and reconnect after a first preset time. If the reconnection is successful, the noise monitoring device is controlled to upload to the remote server, and the monitoring data previously saved in the vehicle controller due to failure to connect to the remote server is re-uploaded to the remote server; When the noise monitoring device is successfully connected to the remote server, the steps of monitoring the quality of the current network connection are as follows: Use TCP keepalive messages to keep the noise monitoring device and the remote server connected to the current network; The packet loss of TCP keepalive messages is counted and the basic packet loss rate is calculated; if the basic packet loss rate is greater than a first preset threshold, the TCP keepalive messages are forced to be sent at a high frequency, and the instantaneous packet loss rate is calculated. If the instantaneous packet loss rate reaches a second preset threshold, the current network connection between the noise monitoring device and the remote server is forcibly disconnected, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and an attempt to reconnect is made after a second preset time.

[0021] The noise monitoring device is connected to the intelligent virtual gateway through a network connection directly via a network cable or wirelessly.

[0022] Wherein, the first preset time and the second preset time are both 1 minute.

[0023] Among them, the first preset threshold is 5%.

[0024] Among them, the second preset threshold is 30%.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate and explain the present invention, and are not intended to limit the present invention to the scope of the described embodiments. In addition, those skilled in the art can understand that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of the protection claimed by the present invention.

Claims

1. A data reliability transmission method for a vehicle operation noise monitoring device, characterized in that: The steps include: Step S1: deploying an intelligent virtual gateway on the vehicle controller; the intelligent virtual gateway has its own DHCP service and DNS service and provides services to the outside through its own virtual network card; Step S2: Connecting the noise monitoring device installed in the vehicle to the intelligent virtual gateway through a network; Step S3: The intelligent virtual gateway allocates IP and DNS to the noise monitoring device through its own DHCP service and DNS service, and controls the target path for the noise monitoring device to upload monitoring data, and sets the target path to a remote server or a vehicle-mounted controller; Step S4: After the noise monitoring device is started, the intelligent virtual gateway attempts to connect to the remote server using TCP through the virtual network card; If the connection is successful, the noise monitoring device is controlled to upload the monitoring data to the remote server; If the connection fails, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and reconnect after a first preset time. If the reconnection is successful, the noise monitoring device is controlled to upload to the remote server, and the monitoring data previously saved in the vehicle controller due to failure to connect to the remote server is re-uploaded to the remote server; When the noise monitoring device is successfully connected to the remote server, the steps of monitoring the quality of the current network connection are as follows: Use TCP keepalive messages to keep the noise monitoring device and the remote server connected to the current network; Count the number of TCP keepalive packet losses and calculate the basic packet loss rate. If the basic packet loss rate is greater than the first preset threshold, TCP keepalive messages are forced to be sent at a high frequency, and the instantaneous packet loss rate is calculated. If the instantaneous packet loss rate reaches the second preset threshold, the current network connection between the noise monitoring device and the remote server is forcibly disconnected, and the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and try to reconnect after the second preset time.

2. A data reliability transmission method for a vehicle operation noise monitoring device according to claim 1, characterized in that: The noise monitoring device is connected to the intelligent virtual gateway through a network cable or a wireless connection.

3. The data reliability transmission method of a vehicle running noise monitoring device according to claim 1 is characterized in that: The first preset time and the second preset time are both 1 minute.

4. The data reliability transmission method of a vehicle running noise monitoring device according to claim 1 is characterized in that: The first preset threshold is 5%.

5. The data reliability transmission method of a vehicle running noise monitoring device according to claim 1 is characterized in that: The second preset threshold is 30%.

6. A data reliability transmission system for a vehicle operation noise monitoring device, characterized in that: The system includes an on-board controller, an intelligent virtual gateway and a remote server; the system executes the following method: Step S1: deploying an intelligent virtual gateway on the vehicle controller; the intelligent virtual gateway has its own DHCP service and DNS service and provides services to the outside through its own virtual network card; Step S2: Connecting the noise monitoring device installed in the vehicle to the intelligent virtual gateway through a network; Step S3: The intelligent virtual gateway allocates IP and DNS to the noise monitoring device through its own DHCP service and DNS service, and controls the target path for the noise monitoring device to upload monitoring data, and sets the target path to a remote server or a vehicle-mounted controller; Step S4: After the noise monitoring device is started, the intelligent virtual gateway attempts to connect to the remote server using TCP through the virtual network card; If the connection is successful, the noise monitoring device is controlled to upload the monitoring data to the remote server; If the connection fails, the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and reconnect after a first preset time. If the reconnection is successful, the noise monitoring device is controlled to upload to the remote server, and the monitoring data previously saved in the vehicle controller due to failure to connect to the remote server is re-uploaded to the remote server; When the noise monitoring device is successfully connected to the remote server, the steps of monitoring the quality of the current network connection are as follows: Use TCP keepalive messages to keep the noise monitoring device and the remote server connected to the current network; Count the number of TCP keepalive packet losses and calculate the basic packet loss rate. If the basic packet loss rate is greater than the first preset threshold, TCP keepalive messages are forced to be sent at a high frequency, and the instantaneous packet loss rate is calculated. If the instantaneous packet loss rate reaches the second preset threshold, the current network connection between the noise monitoring device and the remote server is forcibly disconnected, and the noise monitoring device is controlled to upload the monitoring data to the vehicle controller, and try to reconnect after the second preset time.

7. A data reliability transmission system for a vehicle operation noise monitoring device according to claim 6, characterized in that: The noise monitoring device is connected to the intelligent virtual gateway through a network cable or a wireless connection.

8. The data reliability transmission system of a vehicle running noise monitoring device according to claim 6 is characterized in that: The first preset time and the second preset time are both 1 minute.

9. A data reliability transmission system for a vehicle operation noise monitoring device according to claim 6, characterized in that: The first preset threshold is 5%.

10. The data reliability transmission system of a vehicle running noise monitoring device according to claim 6, characterized in that: The second preset threshold is 30%.

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