TWI680071B - Plc module of telematics information, telematics system having the same, and signal transferring method of telematics information - Google Patents

Abstract

A power line communication module for vehicle diagnostic information includes a controller area network transmission (CAN) high potential terminal, a controller area network transmission (CAN) low potential terminal, a positive voltage terminal, a ground terminal, and a Signal conversion interface, the controller area network transmission high potential terminal and the controller area network transmission low potential terminal are for connecting a controller area network transmission (CAN) bus of a vehicle, the positive voltage terminal is connected to the ground The terminal is used to connect the power supply of the vehicle. The controller area network transmission signal from the controller area network transmission high-potential terminal and the controller area network transmission low-potential terminal is transmitted to the signal conversion interface and converted into a power line. The communication signal is then transmitted to the power source of the vehicle via the positive voltage terminal and the ground terminal for further transmission to at least one electronic device connected to the power source in the vehicle.

Description

Power line communication module for vehicle diagnostic information, vehicle diagnostic information system and signal transmission method of vehicle diagnostic information

The invention relates to a vehicle diagnostic information system and a power line communication module thereof.

In general, the execution data and status of each component of the vehicle, such as information or signals sensed by various sensors, are interconnected and cooperate with each other through the on-vehicle network. The communication of the on-vehicle network must be based on a specific communication protocol. For example, the Controller Area Network (CAN) is a fairly common communication protocol.

However, if the user wishes to read the signal of the controller's LAN protocol in order to know the data and status of each part of the vehicle, it is usually necessary to use adapters and other components to transfer the controller's LAN protocol signal out in order to be able to Electronic devices that read the controller's LAN protocol signals, such as those disclosed in the patent TW I436535, are very inconvenient. Without a special specification adapter and a special specification electronic device, the purpose cannot be achieved.

Therefore, how to make it easier and easier for users to read and learn the execution data and status of each component of the vehicle to grasp the vehicle status is a major issue in the industry.

The main purpose of the present invention is to provide a power line communication module for vehicle diagnostic information and a vehicle diagnostic information system, which can receive vehicle information through any electronic device connected to the vehicle power source, without the need for additional wiring and specific devices.

To achieve the above object, the present invention provides a power line communication module for vehicle diagnostic information, including a controller area network transmission (CAN) high-potential end, a controller area network transmission (CAN) low-potential end, and a positive A voltage terminal, a ground terminal, and a signal conversion interface. The controller area network transmission high-potential terminal and the controller area network transmission low-potential terminal are for connection to a controller area network transmission (CAN) bus of a vehicle. The positive voltage terminal and the ground terminal are used to connect the power source of the vehicle, and a controller area network transmission signal transmitted from the controller area network high potential terminal and the controller area network transmission low potential terminal is transmitted to the controller area network. After the signal conversion interface is converted into a power line communication signal, the positive voltage terminal and the ground terminal are transmitted to the power source of the vehicle for further transmission to at least one electronic device connected to the power source in the vehicle.

To achieve the above object, the present invention also provides a vehicle diagnostic information system, which includes the power line communication module of the vehicle diagnostic information described above, and further includes a controller area network transmission (CAN) bus, a power source, and at least one electronic Device, the power supply is electrically connected to the at least one electronic device, the controller area network transmission (CAN) high-potential terminal and the controller area network transmission (CAN) low-potential terminal of the power line communication module of the vehicle diagnostic information Connected to the controller area network transmission bus, the positive voltage terminal and ground terminal of the power line communication module of the vehicle diagnostic information are connected to the power supply, and the controller area network transmission bus controller area network transmission The signal is transmitted to the high-potential end of the controller area network and the low-potential end of the controller area network to enter the universal asynchronous transceiver interface (UART) of the power line communication module of the vehicle diagnostic information, and then converted into a power line communication signal. It is then transmitted to the power supply through the positive voltage terminal and the ground terminal, and further transmitted to the at least one electronic device through a circuit.

To achieve the above object, the present invention also provides a signal transmission method for vehicle diagnostic information, which uses the above vehicle diagnostic information system and includes the following steps: A diagnostic information for a vehicle transmits a high-potential terminal from the controller's local network and a low-potential terminal for the controller's local network via a controller area network transmission signal to the power line communication module of the vehicle's diagnostic information.

The controller area network transmission signal is converted into a power line communication signal through the universal asynchronous transceiver interface (UART), and then transmitted to the power supply through the positive voltage terminal and the ground terminal.

The power line communication signal is transmitted from the power source to the at least one electronic device.

10‧‧‧Power Line Communication Module

101‧‧‧ Controller area network transmission high potential end

102‧‧‧ Controller LAN transmission low potential

103‧‧‧Positive voltage terminal

104‧‧‧ Ground

105‧‧‧ Universal Asynchronous Transceiver Interface (UART)

11‧‧‧Male connector

111‧‧‧ ring convex rib

1111‧‧‧Outward Section

112‧‧‧ Upper Pin

113‧‧‧ bottom row pins

114‧‧‧Long raised ribs

20‧‧‧ Controller area network transmission bus

201‧‧‧ Controller area network transmission high potential end pin

202‧‧‧ Controller area network transmission low potential terminal pin

203‧‧‧Positive voltage terminal pin position

204‧‧‧ Ground pin

21‧‧‧female connector

211‧‧‧ ring groove

2111‧‧‧outward section

212‧‧‧Upper row feet

213‧‧‧bottom feet

214‧‧‧Chang Gully

30‧‧‧ Power

40‧‧‧electronic device

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a schematic diagram of the present invention.

Figure 3 is a schematic diagram of the system of the present invention.

The following only illustrates the possible implementation aspects of the present invention by way of examples, but is not intended to limit the scope of the present invention to be protected, which will be described first.

Please refer to FIGS. 1 to 3. The present invention provides a power line communication module 10 for vehicle diagnostic information, which includes a controller area network transmission (CAN) high-potential end 101 and a controller area network transmission (CAN) low The potential terminal 102, a positive voltage terminal 103, a ground terminal 104, and a signal conversion interface (preferably a universal asynchronous transceiver interface (UART) 105). The controller area network transmits the high potential terminal 101 and the controller. Local network transmission low-potential terminal 102 is used to connect a controller of a vehicle to a local area network transmission (CAN) bus 20, and the positive voltage terminal 103 and the ground terminal 104 are used to connect the vehicle's power source 30 (in this embodiment) , Is indirectly connected to the power source 30 via the controller area network transmission bus 20), from the controller area network transmission high potential terminal 101 and the controller area network transmission low potential terminal 102 enter After the controller area network transmission signal is transmitted to the universal asynchronous transceiver interface (UART) 105, it is converted into a power line communication signal and then transmitted to the vehicle's power source 30 via the positive voltage terminal 103 and the ground terminal 104 for further transmission to At least one electronic device 40 connected to the power source 30 in the vehicle.

The invention also provides a vehicle diagnostic information system, which includes the power line communication module 10 of the vehicle diagnostic information described above, and further includes a controller area network transmission (CAN) bus 20, a power source 30, and at least one electronic device 40. (The at least one electronic device 40 is a car navigation system or a car recorder, or other electronic device connected to a cigarette lighter), the power source 30 is electrically connected to the at least one electronic device 40, and the vehicle is used for The controller area network transmission (CAN) high-potential terminal 101 and the controller area network transmission (CAN) low-potential terminal 102 of the power line communication module 10 for diagnosis information are connected to the controller area network transmission bus 20, which The positive voltage terminal 103 and the ground terminal 104 of the power line communication module 10 for vehicle diagnostic information are connected to the power source 30 (in this embodiment, it is indirectly connected to the power source 30 via the controller area network transmission bus 20) , The controller area network transmission signal of the controller area network transmission bus 20 is transmitted through the controller area network to the high potential terminal 101 and the controller area network is transmitted to the low potential terminal 102 to enter the vehicle diagnostic information. electric power After the universal asynchronous transceiver interface (UART) 105 of the communication module 10 is converted into a power line communication signal, it is transmitted to the power source 30 through the positive voltage terminal 103 and the ground terminal 104, and further transmitted to the at least one electronic device through a circuit. 40.

Specifically, the power line communication module 10 has a male connector 11 that includes a ring-shaped rib 111, which is generally an inverted trapezoid, and two rows of pins are arranged in parallel around the ring-shaped rib 111. In the structured space, each row of pins includes eight pins. The row of pins that are closer to the long bottom edge of the ring rib 111 is defined as the upper row of pins 112 and the short bottom that is closer to the ring rib 111. The row of pins on the side is defined as the pin 113 of the lower row. The high-voltage terminal 101 of the controller area network transmission is the third one from the left. The low-potential terminal 102 of the controller area network transmission is the left. The third row of pins from the bottom, the positive voltage terminal 103 is the first row of pins from the left, the ground terminal 104 is the fourth row of pins from the left, the controller area network transmission The bus bar 20 has a female joint 21, and the female joint 21 is recessed with a ring groove 211, and the ring groove 211 is substantially a ladder. The ring convex rib 111 of the male connector 11 is embedded, and the two rows of feet are arranged in parallel in the space surrounded by the ring groove 211. Each row of feet includes eight feet, which is closer to the ring. The row of feet on the long bottom side of the groove 211 is defined as the upper row of feet 212, and the row of feet on the short bottom side closer to the ring groove 211 is defined as the lower row of feet 213. Row pin (controller LAN transmission high potential end pin 201) for the controller LAN transmission high potential end 101 plug-in connection, third from the right the lower row pin (controller LAN transmission) Low-potential pin 202) is used for the controller area network transmission. Low-potential pin 102 is inserted and connected, and the first row of pins from the right (positive voltage pin 203) is used for the positive-voltage terminal 103. , The fourth upper row pin (ground pin 204) from the right is provided for the ground terminal 104 to be inserted and connected; preferably, there is a gap between the upper row pins 112 and the lower row pins 113. An elongated rib 114 has a long groove 214 between the upper row of feet 212 and the lower row of feet 213, and the long groove 214 is used for embedding the elongated rib 114. In this embodiment, the annular protrusion rib The middle portion of the short bottom edge of 111 includes an outward shift section 1111, which is farther away from the long bottom edge than the other parts of the short bottom edge, so that the middle portion of the short bottom edge faces the long bottom edge. A recess is formed on one side, and the middle portion of the short bottom edge of the ring groove 211 also includes an outward moving section 2111, which is farther away from the long bottom edge than the other parts of the short bottom edge, making the ring groove The shape of 211 corresponds to the shape of the annular convex rib 111 and can be fitted to each other.

The invention also provides a signal transmission method for vehicle diagnostic information, which uses the above vehicle diagnostic information system and includes the following steps: A diagnostic information for a vehicle transmits a high-potential terminal from the controller's local network and a low-potential terminal for the controller's local network via a controller area network transmission signal to the power line communication module of the vehicle's diagnostic information.

The controller area network transmission signal is converted into a power line communication signal through the universal asynchronous transceiver interface (UART), and then transmitted to the power supply through the positive voltage terminal and the ground terminal.

The power line communication signal is transmitted from the power source to the at least one electronic device.

With the above system, in-vehicle information can be read by devices connected to the power line directly through the power line in the vehicle. For example, the user can directly use an electronic device connected to the vehicle's power source such as a driving recorder or car navigation system to read the original information. The vehicle information transmitted by the CAN protocol does not need to use an external connector to transmit the CAN signal to a special CAN signal reading device, which is extremely convenient.

Claims (11)

A power line communication module for vehicle diagnostic information includes a controller area network transmission (CAN) high potential terminal, a controller area network transmission (CAN) low potential terminal, a positive voltage terminal, a ground terminal, and a Signal conversion interface, the controller area network transmission high potential terminal and the controller area network transmission low potential terminal are for connecting a controller area network transmission (CAN) bus of a vehicle, the positive voltage terminal is connected to the ground The terminal is used to connect the power supply of the vehicle. The controller area network transmission signal from the controller area network transmission high-potential terminal and the controller area network transmission low-potential terminal is transmitted to the signal conversion interface and converted into a power line. The communication signal is then transmitted to the power source of the vehicle via the positive voltage terminal and the ground terminal for further transmission to at least one electronic device connected to the power source in the vehicle. The power line communication module for vehicle diagnostic information according to claim 1, wherein the signal conversion interface is a universal asynchronous transceiver interface (UART). The power line communication module for vehicle diagnostic information according to claim 1, having a male connector, the male connector includes a ring convex rib, the ring convex rib is generally an inverted trapezoid, and the two rows of pins are arranged in parallel to the ring convex In the space of the rib structure, each row of pins includes eight pins. The row of pins that are closer to the long bottom edge of the annular rib are defined as the upper row of pins, and the short bottom edge that is closer to the annular rib. The pin of the row is defined as the pin of the lower row. The high-potential end of the controller area network transmission is the third from the left. The pin of the upper row is the third row of the controller area network transmission. For the lower row of pins, the positive voltage terminal is the first one of the lower row pins from the left, and the ground terminal is the fourth of the upper row pins from the left. The power line communication module for vehicle diagnostic information according to claim 3, wherein a long convex rib is provided between the upper row pins and the lower row pins. The power line communication module for vehicle diagnostic information according to claim 3, wherein the middle portion of the short bottom edge of the ring-shaped rib includes an outward movement segment, which is farther away than the other portion of the short bottom edge. The long bottom side is such that a middle portion of the short bottom side forms a recess on a side facing the long bottom side. A vehicle diagnostic information system includes a power line communication module for vehicle diagnostic information as described in claim 2, and further includes a controller area network transmission (CAN) bus, a power source, and at least one electronic device. The power source Is electrically connected to the at least one electronic device, and the controller area network transmission (CAN) high potential terminal and the controller area network transmission (CAN) low potential terminal of the power line communication module of the vehicle diagnostic information are connected to the control Device LAN transmission bus, the positive voltage terminal and ground terminal of the power line communication module of the vehicle diagnostic information are connected to the power supply, and the controller LAN transmission signal of the controller LAN transmission bus is controlled by the controller The high-potential end of the LAN transmission of the controller and the low-potential end of the controller's LAN transmission into the universal asynchronous transceiver interface (UART) of the power line communication module of the diagnostic information for the vehicle are converted into power line communication signals and passed through the positive The voltage terminal and the ground terminal are transmitted to the power source, and further transmitted to the at least one electronic device through a circuit. The vehicle diagnostic information system according to claim 6, wherein the at least one electronic device is a vehicle navigation system or a vehicle recorder. The vehicle diagnostic information system according to claim 6, wherein the power line communication module of the vehicle diagnostic information has a male connector, the male connector includes a ring convex rib, the ring convex rib is almost an inverted trapezoid, and two rows of pins They are arranged in parallel in the space surrounded by the annular ribs. Each row of pins includes eight pins. The row of pins closer to the long bottom side of the annular rib is defined as the upper row of pins, which is closer to the row. The row of pins on the short bottom of the ring-shaped rib is defined as the lower row pins. The high-potential end of the controller area network transmission is the third upper row pin from the left, and the controller area network transmits the low potential. The terminal is the third row of pins from the left, the positive voltage terminal is the first row of pins from the left, the ground terminal is the fourth row of pins from the left, the controller area network The transmission bus has a female connector. The female connector is concavely provided with a ring groove. The ring groove is substantially trapezoidal for the male convex ring ribs to be embedded. The two rows of pins are arranged in parallel to the ring groove. In the structured space, each row of feet includes eight feet, and the row of feet closer to the long bottom side of the ring groove is defined as above. Row pin, the pin on the short bottom side closer to the groove of the ring is defined as the pin on the lower row, and the third pin on the upper row from the right is for the controller LAN to transmit the high-potential end plug connection , The third pin from the right is for the controller LAN to transmit the low-voltage terminal plug connection, the first pin from the right is for the positive voltage terminal plug connection, the fourth from the right The upper row of pins are used for inserting and connecting the ground terminal. The diagnostic information system for a vehicle according to claim 8, wherein the upper row pins and the lower row pins have a long rib between the upper row pins and the lower row pins. There is a long groove between the long grooves for the long convex ribs to be embedded. The diagnostic information system for a vehicle according to claim 8, wherein the middle portion of the short bottom edge of the ring-shaped rib includes an outward movement segment, which is farther from the long bottom edge than the other parts of the short bottom edge, The middle portion of the short bottom edge forms a recess on the side facing the long bottom edge, and the middle portion of the short bottom edge of the ring groove also includes an outward movement section, which is more than the other part of the short bottom edge. Further away from the long bottom edge, the shape of the ring groove corresponds to the shape of the ring convex rib and can be fitted to each other. A signal transmission method for vehicle diagnostic information uses the vehicle diagnostic information system described in claim 6 and includes the following steps: A vehicle diagnostic information is transmitted from a controller area network signal through the controller area network. The high-potential terminal and the controller's local area network transmit the low-potential terminal to enter the power line communication module of the vehicle diagnostic information; the controller's local area network transmission signal is converted into a power line communication signal by the universal asynchronous transceiver interface (UART) The positive voltage terminal and the ground terminal are transmitted to the power source; the power line communication signal is transmitted from the power source to the at least one electronic device.