OBD (On-Board Diagnostic) detection system with novel architecture and detection method

Abstract

The invention relates to the technical field of OBD (On-Board Diagnostic) detection systems, in particular to an OBD detection system with a novel framework and a detection method. The system has the advantages that the OBD diagnostic instrument and the operation terminal interact with the public platform, the external inspection operation terminal is controlled by the public platform and automatically operates according to the process, an operator observes and intervenes a problem vehicle, a flexible framework is adopted, the server side and the equipment side are separated, and the equipment side and the operation side are separated, so that the operation efficiency is improved. The operation end can use any mobile equipment, development and use are more flexible and convenient, the research and development cost and the equipment cost are lower, the network and Bluetooth dual-mode networking working capability is achieved, the one-to-many working mode is achieved, namely, the one-station machine / PDA multi-diagnosis-head capability is achieved, and the working efficiency is improved. And meanwhile, the system has a self-positioning and self-connecting intelligent networking working mode capability, has a center scheduling receiving function and a power-off self-storage function, and is also provided with an independent hardware watchdog to have an anti-crash function.

Description

Technical Field

[0001] The present invention relates to the technical field of OBD detection systems, and in particular to an OBD detection system and a detection method with a new architecture. Background Art

[0002] The OBD system is the on-board diagnostic system. This system monitors the operating status of the engine and the working status of the exhaust after-treatment system at any time. Once it finds a situation that may cause excessive emissions, it will immediately issue a warning. When a system fails, the fault light or check engine warning light will light up, and the OBD system will store the fault information in the memory. The relevant information can be read in the form of fault codes through the standard diagnostic system and diagnostic interface.

[0003] At present, the OBD detection system used for vehicle maintenance integrates the server and device ends, as well as the device end and operation end. The operation end cannot flexibly select mobile devices, which is inconvenient. The development and use are not flexible and convenient enough, and the R&D cost and equipment cost are high. Summary of the invention

[0004] The object of the present invention is to solve at least one of the technical drawbacks.

[0005] To this end, an object of the present invention is to propose an OBD detection system and detection method with a new architecture to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0006] In order to achieve the above-mentioned objectives, an embodiment of one aspect of the present invention provides an OBD detection system with a new architecture, including a server platform for activation authorization and data management, an in-station platform for data control within an organization, an operation terminal responsible for displaying operation procedures and intervention operations, an OBD diagnostic instrument acquisition terminal and a public platform, wherein the OBD diagnostic instrument acquisition terminal is separately arranged from the operation terminal, and the OBD diagnostic instrument acquisition terminal and the operation terminal interact with the same public platform at the same time, and the operation terminal is controlled by the public platform.

[0007] Preferably, any of the above schemes is that the server platform is used to connect with the production management system and verify the legitimacy of the equipment; connect with the SMS platform and perform verification data operations; the in-station platform is used to manage all terminals in the station, matching management of in-station terminals, data and command forwarding, OBD diagnostic instrument process control in the external inspection link, management of in-station positioning modules and position positioning, and OBD diagnostic instrument protocol decoding.

[0008] Preferably, any of the above schemes comprises a PC version of a workstation system and an Android version of a PDA system, wherein the PC version of the workstation terminal is mainly used for real-time data acquisition, and the PDA system is mainly responsible for displaying the operation process and intervening in the operation.

[0009] Preferably, any of the above schemes is that the OBD diagnostic instrument acquisition terminal is mainly used for collecting vehicle data and matching protocols, transmitting data to the in-station platform in real time, and receiving control instructions from the in-station platform.

[0010] Preferably, any of the above schemes comprises an ARM9 core processor, a DB15PIN male socket, a high-speed CAN bus, a K line, a J1850 bus, a hardware watchdog, an independent TRC clock circuit, a TF card expansion storage, a voice broadcast module, a Bluetooth connection module and a network connection module.

[0011] Another aspect of the present invention provides an OBD detection method of a new architecture, including a software operation method, a network connection method and an automobile OBD connection detection method, wherein the software operation method includes the following steps: 1) First, the OBD detector is connected to the network; 2) After the connection is successful, register to the server; 3) Then start the network heartbeat packet and connect the detector to the car to start the test; 4) After access, the software detects which protocols and services the car supports; 5) Start the OBD heartbeat packet to prevent the car's MCU from entering sleep mode and being unable to communicate; 6) Then you can receive the real-time data stream of the server; 7) Return the detection results to the server.

[0012] The network connection method comprises the following steps: 1) Start the device; 2) First, connect to the server; 3) After the connection is successful, register the device to the server; 4) After successful registration, start the heartbeat service; 5) If the car is already connected, let the server start the detection process; 6) Send test data; 7) Then return the detected results to the server.

[0013] The automobile OBD connection detection method comprises the following steps: 1) Connect to the car OBD port; 2) After the detector detects that the car is connected; 3) Start the detection protocol process to detect what communication protocol the car supports; 4) Then use the detected protocol to communicate with the car; 5) Start querying the services and PIDs supported by the car and save them; 6) Start the OBD heartbeat service to prevent the car ECU from entering sleep mode; 7) Then receive the query command service sent by the server, compare it with the saved service to see if it is supported. If it is supported, query the car and return the query result to the server.

[0014] Compared with the prior art, the present invention has the following advantages and beneficial effects: 1. The OBD detection system and detection method of the new architecture, the OBD diagnostic instrument and the operation terminal all interact with a public platform. The external inspection operation terminal is controlled by the public platform and automatically operates according to the process. The operator observes and intervenes in the problem vehicle. A flexible architecture is adopted, the service end and the device end are separated, and the device end and the operation end are separated. The operation end can use any mobile device, which is more flexible and convenient to develop and use, and the R&D cost and equipment cost are lower.

[0015] 2. The OBD detection system and detection method of the new architecture have the ability to work in dual modes of network and Bluetooth, and have a one-to-many working mode, that is, one workstation / PDA has the ability to work in multiple diagnostic heads. It also has the ability of self-positioning and self-connecting intelligent networking working mode, the function of accepting central scheduling, the function of power-off self-storage, and is also equipped with an independent hardware watchdog to prevent the system from crashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the flow structure of the software running method of the present invention; Figure 2 A schematic diagram of the flow structure of the network connection method of the present invention; Figure 3 It is a schematic diagram of the flow structure of the automobile OBD connection detection method of the present invention. DETAILED DESCRIPTION

[0017] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0018] Embodiment 1: A novel OBD detection system, which includes a server platform for activation authorization and data management, an in-station platform for data control within an organization, an operation terminal for displaying operation procedures and intervention operations, an OBD diagnostic instrument acquisition terminal and a public platform, characterized in that: the OBD diagnostic instrument acquisition terminal and the operation terminal are separately arranged, the OBD diagnostic instrument acquisition terminal and the operation terminal interact with the same public platform at the same time, the operation terminal is controlled by the public platform, the server platform is used to connect with the production management system and verify the legitimacy of the equipment; connect with the SMS platform and perform data verification operations, the in-station platform is used to manage all terminals in the station, the matching management of the in-station terminals, data and command forwarding, and the external inspection link OB D diagnostic instrument process control, management station positioning module and position positioning, as well as OBD diagnostic instrument protocol decoding, the operation terminal includes a PC version of the station system and an Android version of the PDA system. The PC version of the station terminal is mainly used for real-time data acquisition, and the PDA system is mainly responsible for displaying the operation process and intervention operations. The OBD diagnostic instrument acquisition terminal is mainly used for vehicle data collection and protocol matching, real-time data transmission to the station platform and receiving control instructions from the station platform. The system operating hardware includes an ARM9 core processor, a DB15PIN male socket, a high-speed CAN bus, a K line, a J1850 bus, a hardware watchdog, an independent TRC clock circuit, a TF card expansion storage, a voice broadcast module, and a Bluetooth connection module.

[0019] This embodiment uses Bluetooth to connect, and can interact with the mobile terminal through the Bluetooth protocol, and the data transmission is more stable.

[0020] A new OBD detection method, such as Figure 1-Figure 3 As shown: including a software operation method, a network connection method and a car OBD connection detection method, the software operation method includes the following steps: 1) First, the OBD detector is connected to the network; 2) After the connection is successful, register to the server; 3) Then start the network heartbeat packet and connect the detector to the car to start the test; 4) After access, the software detects which protocols and services the car supports; 5) Start the OBD heartbeat packet to prevent the car's MCU from entering sleep mode and being unable to communicate; 6) Then you can receive the real-time data stream of the server; 7) Return the detection results to the server.

[0021] The network connection method includes the following steps: 1) Start the device; 2) First, connect to the server; 3) After the connection is successful, register the device to the server; 4) After successful registration, start the heartbeat service; 5) If the car is already connected, let the server start the detection process; 6) Send test data; 7) Then return the detected results to the server.

[0022] The automobile OBD connection detection method includes the following steps: 1) Connect to the car OBD port; 2) After the detector detects that the car is connected; 3) Start the detection protocol process to detect what communication protocol the car supports; 4) Then use the detected protocol to communicate with the car; 5) Start querying the services and PIDs supported by the car and save them; 6) Start the OBD heartbeat service to prevent the car ECU from entering sleep mode; 7) Then receive the query command service sent by the server, compare it with the saved service to see if it is supported. If it is supported, query the car and return the query result to the server.

[0023] Embodiment 2: A new type of OBD detection system, which includes a server platform for activation authorization and data management, an in-station platform for data control within the organization, an operation terminal for displaying the operation process and intervention operation, an OBD diagnostic instrument acquisition terminal and a public platform, characterized in that: the OBD diagnostic instrument acquisition terminal and the operation terminal are separately set, the OBD diagnostic instrument acquisition terminal and the operation terminal interact with the same public platform at the same time, the operation terminal is controlled by the public platform, the server platform is used to connect with the production management system and verify the legitimacy of the equipment; connect with the SMS platform and perform data verification operations, the in-station platform is used to manage all terminals in the station, the matching management of the in-station terminals, data and command forwarding, and the external inspection link OB D diagnostic instrument process control, management station positioning module and position positioning, as well as OBD diagnostic instrument protocol decoding, the operation terminal includes a PC version of the station system and an Android version of the PDA system. The PC version of the station terminal is mainly used for real-time data acquisition, and the PDA system is mainly responsible for displaying the operation process and intervention operations. The OBD diagnostic instrument acquisition terminal is mainly used for vehicle data collection and protocol matching, real-time data transmission to the station platform and receiving control instructions from the station platform. The system operating hardware includes an ARM9 core processor, a DB15PIN male socket, a high-speed CAN bus, a K line, a J1850 bus, a hardware watchdog, an independent TRC clock circuit, a TF card expansion storage, a voice broadcast module, and a network connection module.

[0024] This embodiment can use a network connection, and can use a WIFI connection to achieve remote connection, so that a mobile terminal such as a mobile phone can be used for remote connection and control.

[0025] In summary, the OBD detection system and detection method of the new architecture, the OBD diagnostic instrument and the operation terminal all interact with a public platform. The external inspection operation terminal is controlled by the public platform and automatically operates according to the process. The operator observes and intervenes in the problem vehicle. A flexible architecture is adopted, the service end and the device end are separated, and the device end and the operation end are separated. The operation end can use any mobile device, and the development and use are more flexible and convenient, and the R&D cost and equipment cost are lower. It has the ability to work in dual-mode networking with WiFi and Bluetooth, and has a one-to-many working mode, that is, one workstation / PDA has the ability to work in multiple diagnostic heads. At the same time, it has the ability of self-positioning and self-connecting intelligent networking working mode, has the function of accepting central scheduling, has the function of power-off self-storage, and is also equipped with an independent hardware watchdog with an anti-crash function.

[0026] Although the embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Those skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A new type of OBD detection system, including a server platform for activation authorization and data management, an in-station platform for data control within the organization, an operation terminal for displaying operation procedures and intervention operations, an OBD diagnostic instrument acquisition terminal and a public platform, characterized by: The OBD diagnostic instrument acquisition terminal and the operation terminal are separately arranged. The OBD diagnostic instrument acquisition terminal and the operation terminal interact with the same public platform at the same time. The operation terminal is controlled by the public platform.

2. The OBD detection system of a new architecture according to claim 1 is characterized in that: The server platform is used to connect with the production management system and verify the legitimacy of the equipment; connect with the SMS platform and perform data verification operations. The in-station platform is used to manage all terminals in the station, matching management of in-station terminals, data and command forwarding, OBD diagnostic instrument process control in the external inspection link, management of in-station positioning modules and position positioning, and OBD diagnostic instrument protocol decoding.

3. The OBD detection system of a new architecture according to claim 1 is characterized in that: The operation terminal includes a PC version of the workstation system and an Android version of the PDA system. The PC version of the workstation terminal is mainly used for real-time data acquisition, and the PDA system is mainly responsible for displaying the operation process and intervening in the operation.

4. The OBD detection system of a new architecture according to claim 3 is characterized in that: The OBD diagnostic instrument acquisition terminal is mainly used for collecting vehicle data and matching protocols, transmitting data to the in-station platform in real time, and receiving control instructions from the in-station platform.

5. The OBD detection system of a new architecture according to claim 3 is characterized in that: The system operating hardware includes an ARM9 core processor, a DB15PIN male socket, a high-speed CAN bus, a K line, a J1850 bus, a hardware watchdog, an independent TRC clock circuit, a TF card expansion storage, a voice broadcast module, a Bluetooth connection module and a network connection module.

6. A novel OBD detection method, using the novel OBD detection system according to any one of claims 1 to 5, characterized in that: The invention comprises a software operation method, a network connection method and an automobile OBD connection detection method, wherein the software operation method comprises the following steps: 1) First, the OBD detector is connected to the network; 2) After the connection is successful, register to the server; 3) Then start the network heartbeat packet and connect the detector to the car to start testing; 4) After access, the software detects which protocols and services the car supports; 5) Start the OBD heartbeat packet to prevent the car's MCU from entering sleep mode and being unable to communicate; 6) Then you can receive the real-time data stream of the server's detection; 7) Return the detection results to the server.

7. The OBD detection method of a new architecture according to claim 6 is characterized in that: The network connection method comprises the following steps: 1) Start the device; 2) First, connect to the server; 3) After the connection is successful, register the device to the server; 4) After successful registration, start the heartbeat service; 5) If the car is already connected, let the server start the detection process; 6) Send test data; 7) Then return the detected results to the server.

8. The OBD detection method of a new architecture according to claim 7 is characterized in that: The automobile OBD connection detection method comprises the following steps: 1) Connect to the car OBD port; 2) After the detector detects that the car is connected; 3) Start the detection protocol process to detect what communication protocol the car supports; 4) Then use the detected protocol to communicate with the car; 5) Start querying the services and PIDs supported by the car and save them; 6) Start the OBD heartbeat service to prevent the car ECU from entering sleep mode; 7) Then receive the query command service sent by the server, compare it with the saved service to see if it is supported. If it is supported, query the car and return the query result to the server.

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