CN214151415U - 4G T-BOX remote monitoring's on-vehicle detection control circuit - Google Patents
4G T-BOX remote monitoring's on-vehicle detection control circuit Download PDFInfo
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- CN214151415U CN214151415U CN202023120323.4U CN202023120323U CN214151415U CN 214151415 U CN214151415 U CN 214151415U CN 202023120323 U CN202023120323 U CN 202023120323U CN 214151415 U CN214151415 U CN 214151415U
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Abstract
The utility model discloses a 4G T-BOX remote monitoring's on-vehicle detection control circuit, include: the system comprises a main control module, a driving module, a power supply module, an OBDII communication connection module, a Beidou/GPS communication module, a 4G communication module and a protocol switching control module; the power supply module, the driving module, the Beidou/GPS communication module and the 4G communication module are respectively and electrically connected with the main control module; the main control module is electrically connected with the OBDII communication connection module through the driving module; the protocol switching control module comprises a first relay unit and a second relay unit; first relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected, second relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected. The utility model can freely switch different diagnostic data transmission lines, and has strong expansibility; furthermore, the utility model discloses a safe, simple and high efficiency's car remote diagnosis function.
Description
Technical Field
The utility model relates to an on-vehicle control technology field especially relates to a 4G T-BOX remote monitoring's on-vehicle detection control circuit.
Background
In the field of vehicle-mounted control technology, automobile diagnosis and maintenance are particularly important for the safety of drivers. In contrast, in the conventional automobile diagnosis, local service centers such as a physical 4S store and an automobile repair store are mainly used. This approach has certain drawbacks. The owner can not monitor the working state and various safety indexes of the driving vehicle in real time, and the mode can not meet the requirements of the intelligent era. In addition, for the car owner and the car service provider, when the car owner encounters an accident suddenly in the driving process, such as a car rollover, collision and other events, a proper rescue mechanism needs to be contacted according to the actual situation, so that the car owner can be guaranteed to be rescued in the shortest time. In addition, the existing vehicle-mounted detection circuit is only provided with a diagnosis data transmission line, and the limitation is large. Therefore, the invention provides a vehicle-mounted control circuit which can comprehensively and reliably monitor vehicle safety indexes in real time and realize vehicle-mounted positioning and remote diagnosis, and the vehicle-mounted control circuit is a problem which needs to be solved by technical personnel in the field urgently.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model lies in that, to the above-mentioned defect of prior art, provide a 4G T-BOX remote monitoring's on-vehicle detection control circuit.
The utility model discloses a 4G T-BOX remote monitoring vehicle-mounted detection control circuit, which comprises a main control module, a driving module, a power module, an OBDII communication connection module, a Beidou/GPS communication module, a 4G communication module and a protocol switching control module; the power supply module, the driving module, the Beidou/GPS communication module and the 4G communication module are respectively and electrically connected with the main control module; the main control module is electrically connected with the OBDII communication connection module through the driving module; the protocol switching control module comprises a first relay unit and a second relay unit; first relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected, second relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected.
Preferably, the first relay unit includes a first relay and a second relay; the first relay respectively with drive module reaches the host system electricity is connected, the second relay respectively with first relay reaches the host system electricity is connected, OBDII communication connection module with the second relay electricity is connected.
Preferably, the second relay unit includes a third relay, a fourth relay, a fifth relay, and a sixth relay; the third relay respectively with drive module reaches the host system electricity is connected, the fourth relay respectively with the third relay reaches the host system electricity is connected, the fifth relay reaches the sixth relay respectively with the fourth relay electricity is connected, the fifth relay reaches the sixth relay respectively with the host system electricity is connected, OBDII communication connection module all with the fifth relay reaches the sixth relay electricity is connected.
Preferably, the first relay and the second relay are used for switching two paths of K bus protocol interfaces.
Preferably, the third relay, the fourth relay, the fifth relay and the sixth relay are used for switching 4-way CAN bus protocol interfaces.
Preferably, the 4G T-BOX remote monitoring vehicle-mounted detection control circuit further comprises an acceleration sensing module; the acceleration sensing module is electrically connected with the main control module and used for monitoring the acceleration of the automobile in real time.
Preferably, the acceleration sensing module comprises an MMA8451Q low power consumption triaxial accelerometer.
Preferably, the model number of the 4G communication module is EC 200S.
The utility model discloses a 4G T-BOX remote monitoring's on-vehicle detection control circuit has following beneficial effect, the utility model discloses a 4G T-BOX remote monitoring's on-vehicle detection control circuit includes: the system comprises a main control module, a driving module, a power supply module, an OBDII communication connection module, a Beidou/GPS communication module, a 4G communication module and a protocol switching control module; the power supply module, the driving module, the Beidou/GPS communication module and the 4G communication module are respectively and electrically connected with the main control module; the main control module is electrically connected with the OBDII communication connection module through the driving module; the protocol switching control module comprises a first relay unit and a second relay unit; first relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected, second relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected. The main control module is used for calling the OBDII communication connection module, the Beidou/GPS communication module and the 4G communication module to establish communication connection with an ECU vehicle-mounted computer, a background server and a mobile phone terminal APP. The OBDII communication connection module is used for acquiring OBD information and data stream information, and performing data analysis and alarm output; the Beidou/GPS communication module is used for acquiring automobile position information; the 4G communication module is used for binding vehicle and equipment information, establishing communication connection with a background server, and uploading data information of the OBDII communication connection module and the Beidou/GPS communication module to a database of the background server. Therefore, the utility model discloses a commercial car vehicle-mounted detection method can realize the function to the extraction of automobile exhaust emission data, upload and storage, has realized safe, simple and high efficiency's car remote diagnosis function.
In addition, in the protocol switching control module, the first relay unit and the second relay unit are used for freely switching different protocol interface types. And sending a detection command to detect the level signal of the pin of the OBDII interface through the OBDII communication connection module, and judging the type of the OBDII communication protocol according to the level signal of each pin. And the OBDII communication connection module transmits data stream information according to different data protocol types. Therefore, the utility model discloses can freely switch different diagnostic data transmission line, the expansibility is strong, and the reliability is high.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described with reference to the accompanying drawings and embodiments, wherein the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained without inventive efforts according to the drawings:
fig. 1 is a schematic circuit block diagram of a 4G T-BOX remote monitoring vehicular detection control circuit according to a preferred embodiment of the present invention;
fig. 2 is a schematic block circuit diagram of a 4G T-BOX remote monitoring vehicular detection control circuit according to another preferred embodiment of the present invention;
fig. 3 is a circuit diagram of a protocol switching control module of a 4G T-BOX remote monitoring vehicular detection control circuit according to a preferred embodiment of the present invention;
fig. 4 is a flowchart illustrating an OBDII communication connection mode of a protocol switching control module of a 4G T-BOX remote monitoring vehicular detection control circuit according to a preferred embodiment of the present invention;
fig. 5 is a specific switching logic table of a plurality of relays of a 4G T-BOX remote monitoring vehicular detection control circuit according to a preferred embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, a clear and complete description will be given below with reference to the technical solutions of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, belong to the scope of protection of the present invention.
The preferred embodiment of the present invention is shown in fig. 1, and comprises a main control module 1, a driving module 2, a power module 3, an OBDII communication connection module 4, a beidou/GPS communication module 5, a 4G communication module 6 and a protocol switching control module 7; the power module 3, the driving module 2, the Beidou/GPS communication module 5 and the 4G communication module 6 are respectively and electrically connected with the main control module 1; the main control module 1 is electrically connected with the OBDII communication connection module 4 through the driving module; the protocol switching control module 7 includes a first relay unit 71 and a second relay unit 72; first relay unit 71 respectively with drive module 2 OBDII communication connection module 4 reaches the host system electricity is connected, second relay unit 72 respectively with drive module OBDII communication connection module 4 reaches host system 1 electricity is connected. The main control module 1 is used for calling the OBDII communication connection module 4, the Beidou/GPS communication module 5 and the 4G communication module 6 to establish communication connection with an ECU vehicle-mounted computer, a background server and a mobile phone terminal APP. The OBDII communication connection module 4 is used for acquiring OBD information and data stream information, and performing data analysis and alarm output; the Beidou/GPS communication module 5 is used for acquiring automobile position information; the 4G communication module 6 is used for binding vehicle and equipment information, establishing communication connection with a background server, and uploading data information of the OBDII communication connection module 4 and the Beidou/GPS communication module 5 to a database of the background server. Therefore, the utility model discloses a commercial car vehicle-mounted detection method can realize the function to the extraction of automobile exhaust emission data, upload and storage, has realized safe, simple and high efficiency's car remote diagnosis function.
In the protocol switching control module 7, the first relay unit 71 and the second relay unit 71 are configured to freely switch different protocol interface types. And sending a detection command to detect the level signal of the pin of the OBDII interface through the OBDII communication connection module 4, and judging the type of the OBDII communication protocol according to the level signal of each pin. The OBDII communication connection module 4 transmits data stream information according to different data protocol types. Therefore, the utility model discloses can freely switch different diagnostic data transmission line, the expansibility is strong, and the reliability is high.
Preferably, please refer to fig. 4, the utility model discloses a OBDII communication connection module 4 sends and detects command detection OBDII interface pin level signal to the level signal according to each pin judges the OBDII communication protocol type. And then detecting the ECU by detecting the VIN code or scanning the system, and judging that the ECU is a gearbox system or an engine system or other systems. And detecting the VIN code, reading the VIN code information of the automobile by sending, and judging the type of the ECU system according to the VIN code festival information. The mode of the scanning system is that an identification command is sent to the ECU after the vehicle enters a specific vehicle type, and the identity of the ECU system is judged according to the reply command information of the ECU. And finally, after entering the ECU system, sending a command to the ECU to read the data stream and the OBD information, and uploading the data stream and the OBD information to a background server. Therefore, the utility model discloses an automatic listen and adopt hardware to combine the software method to realize, the hardware level is listened that detection speed is fast to adopt the software detection method of VIN sign indicating number scanning to listen information accurate and comprehensive, promotes user experience.
Preferably, in this embodiment, the main control module 1 first performs program initialization, establishes communication connection with the mobile phone terminal APP through the 4G module communication module, and binds vehicle information, VIN code information, SIM card information ICID, and the like input by the user in the mobile phone terminal APP. These binding information are updated in the OBD box pre-register table. Then sending a filing protocol, wherein the public key adopts an elliptic curve public key cryptographic algorithm. And the main control module requests VIN code information and the IP address and the port number of the new server from the fixed server, judges whether the VIN and the IP address of the server exist or not, returns if the VIN and the IP address of the server do not exist, and establishes TCP connection with the new server if the VIN and the IP address of the server do not exist. And the main control module confirms whether the main program needs to be updated or not by detecting whether the program version number is consistent with the latest version number of the server side or not. After the latest main program is confirmed, whether the information is already recorded is judged. After the record is confirmed, whether the terminal user login information (including the VIN code information and the SIM card number of the user) is pre-registered in the above step is judged. After confirming the registration, the server side returns the public key to the terminal user. Then the main program of the main control module can report data flow to the server, obtain terminal OBD information, report GPS data to the server, and check and update the vehicle type diagnosis database. And returning when the vehicle is not flamed out, and sending a logout protocol to the terminal user when the vehicle is flamed out. And then judging whether the OBD equipment is dismantled or not, and if so, sending a dismantling alarm signal to the server.
Preferably, referring to fig. 3, the first relay unit 71 includes a first relay a and a second relay B; first relay A respectively with drive module 2 reaches host system 1 electricity is connected, second relay B respectively with first relay A reaches host system electricity is connected, OBDII communication connection module 4 with second relay B electricity is connected.
Preferably, the second relay unit 72 includes a third relay C, a fourth relay E, a fifth relay F, and a sixth relay G; third relay C respectively with drive module 2 reaches host system 1 electricity is connected, fourth relay E respectively with third relay C reaches host system 1 electricity is connected, fifth relay F reaches sixth relay G respectively with fourth relay E electricity is connected, fifth relay F reaches sixth relay G respectively with host system 1 electricity is connected, OBDII communication connection module 4 all with fifth relay F reaches sixth relay G electricity is connected.
Preferably, the first relay a and the second relay B are used for switching two paths of K bus protocol interfaces.
Preferably, the third relay C, the fourth relay E, the fifth relay F, and the sixth relay G are configured to switch 4-way CAN bus protocol interfaces. In another preferred embodiment, the protocol interface types switched by the first relay unit 71 and the second relay unit 72 may be set according to the need, and the protocol interface types are not specifically limited herein.
Specifically, in this embodiment, please refer to fig. 3, the present invention discloses a first relayThe device A and the second relay B switch 2 paths of K bus protocol interfaces Y1 and Y2. And pins of 4-path CAN bus protocol interfaces Y3, Y4, Y5 and Y6 are switched by four relays, namely a third relay C, a fourth relay E, a fifth relay F and a sixth relay G. In another preferred embodiment, the number of extensions of the K bus protocol interface and the CAN bus protocol interface may be set according to needs, and is not particularly limited herein. It can be understood that, referring to fig. 5, the output of the main control module to the relay is represented by X in the embodiment
And the signal is a high level signal, and X represents that the signal output by the main control module to the relay X is a low level signal. The logical control relationship between the relays of the present embodiment can be expressed as:
the first path of communication protocol:
the second way communication protocol:
the third communication protocol:
fourth communication protocol:
the fifth communication protocol:
the sixth way communication protocol:
the specific switching logic relationship among the relays of the present embodiment can be seen in fig. 3.
Preferably, the 4G T-BOX remote monitoring vehicle-mounted detection control circuit further comprises an acceleration sensing module 8; the acceleration sensing module 8 is electrically connected with the main control module 1 and is used for monitoring the acceleration of the automobile in real time.
Preferably, referring to fig. 2, the acceleration sensing module comprises an MMA8451Q low power consumption triaxial accelerometer. The MMA8451Q low-power consumption triaxial accelerometer is connected with the main control module through an IIC (Inter-Integrated Circuit) bus. The acceleration sensing module 8 is used for acquiring the running speed of the vehicle in real time and feeding the speed back to the main control module 1 to acquire the total running distance of the vehicle.
Preferably, the model number of the 4G communication module 6 is EC 200S. It is understood that the EC200S 4G communication module operating mode is divided into a normal mode and a sleep mode. Can awaken up after the vehicle produces vibration or ignition host system, host system awakens up 4G communication module 6, therefore the utility model discloses the low power dissipation. In another preferred embodiment, the model of the 4G communication module 6 is not particularly limited.
To sum up, the utility model provides an among 4G T-BOX remote monitoring's the on-vehicle detection control circuit, host system 1 is used for calling OBDII communication connection module 4 big dipper GPS communication module 5 reaches 4G communication module 6 establishes with ECU on-vehicle computer, backend server and cell-phone terminal APP's communication connection. The OBDII communication connection module 4 is used for acquiring OBD information and data stream information, and performing data analysis and alarm output; the Beidou/GPS communication module 5 is used for acquiring automobile position information; the 4G communication module 6 is used for binding vehicle and equipment information, establishing communication connection with a background server, and uploading data information of the OBDII communication connection module 4 and the Beidou/GPS communication module 5 to a database of the background server. Therefore, the utility model discloses a commercial car vehicle-mounted detection method can realize the function to the extraction of automobile exhaust emission data, upload and storage, has realized safe, simple and high efficiency's car remote diagnosis function.
In the protocol switching control module 7, the first relay unit 71 and the second relay unit 71 are configured to freely switch different protocol interface types. And sending a detection command to detect the level signal of the pin of the OBDII interface through the OBDII communication connection module 4, and judging the type of the OBDII communication protocol according to the level signal of each pin. The OBDII communication connection module 4 transmits data stream information according to different data protocol types. Therefore, the utility model discloses can freely switch different diagnostic data transmission line, the expansibility is strong, and the reliability is high.
The 4G T-BOX remote monitoring vehicle-mounted detection control circuit provided by the utility model is introduced in detail, the principle and the implementation mode of the utility model are explained by applying a specific example, and the description of the above embodiment is only used for helping to understand the method and the core idea of the utility model; meanwhile, to the general technical personnel in this field, according to the utility model discloses an idea, all can have the change part on concrete implementation and application scope, to sum up, this description content only is the utility model discloses an embodiment, does not consequently restrict the utility model discloses a patent scope, all utilize the equivalent structure or the equivalent flow transform that the content of the description and the attached drawing did, or directly or indirectly use in other relevant technical fields, all the same reason is included in the utility model discloses a patent protection scope. And should not be construed as limiting the invention.
Claims (8)
1. A 4G T-BOX remote monitoring on-board detection control circuit, comprising: the system comprises a main control module, a driving module, a power supply module, an OBDII communication connection module, a Beidou/GPS communication module, a 4G communication module and a protocol switching control module; the power supply module, the driving module, the Beidou/GPS communication module and the 4G communication module are respectively and electrically connected with the main control module; the main control module is electrically connected with the OBDII communication connection module through the driving module; the protocol switching control module comprises a first relay unit and a second relay unit; first relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected, second relay unit respectively with drive module OBDII communication connection module reaches the host system electricity is connected.
2. The on-board detection control circuit of 4G T-BOX remote monitoring of claim 1, wherein the first relay unit comprises a first relay and a second relay; the first relay respectively with drive module reaches the host system electricity is connected, the second relay respectively with first relay reaches the host system electricity is connected, OBDII communication connection module with the second relay electricity is connected.
3. The on-board detection control circuit of 4G T-BOX remote monitoring of claim 1, wherein the second relay unit comprises a third relay, a fourth relay, a fifth relay and a sixth relay; the third relay respectively with drive module reaches the host system electricity is connected, the fourth relay respectively with the third relay reaches the host system electricity is connected, the fifth relay reaches the sixth relay respectively with the fourth relay electricity is connected, the fifth relay reaches the sixth relay respectively with the host system electricity is connected, OBDII communication connection module all with the fifth relay reaches the sixth relay electricity is connected.
4. The 4G T-BOX remote monitoring vehicular detection control circuit as claimed in claim 2, wherein the first relay and the second relay are used for switching two-way K bus protocol interfaces.
5. The on-board detection control circuit of claim 3, wherein the third relay, the fourth relay, the fifth relay and the sixth relay are configured to switch 4-way CAN bus protocol interfaces.
6. The 4G T-BOX remote monitoring vehicular detection control circuit as claimed in claim 1, wherein the 4G T-BOX remote monitoring vehicular detection control circuit further comprises an acceleration sensing module; the acceleration sensing module is electrically connected with the main control module and used for monitoring the acceleration of the automobile in real time.
7. The on-board detection control circuit of 4G T-BOX remote monitoring of claim 6, wherein the acceleration sensing module comprises MMA8451Q low power consumption triaxial accelerometer.
8. The 4G T-BOX remote monitoring vehicular detection control circuit as claimed in claim 1, wherein the model of the 4G communication module is EC 200S.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023120323.4U CN214151415U (en) | 2020-12-22 | 2020-12-22 | 4G T-BOX remote monitoring's on-vehicle detection control circuit |
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| CN202023120323.4U CN214151415U (en) | 2020-12-22 | 2020-12-22 | 4G T-BOX remote monitoring's on-vehicle detection control circuit |
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