CN212811728U

CN212811728U - Controller for assembling automobile navigation product

Info

Publication number: CN212811728U
Application number: CN202021572345.1U
Authority: CN
Inventors: 张利民; 刘勋
Original assignee: Tianjin Hyolim Automotive Parts Co ltd
Current assignee: Tianjin Hyolim Automotive Parts Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-03-26
Anticipated expiration: 2030-07-31

Abstract

The utility model provides a controller for car navigation product equipment, including host system, switching module, communication module and alarm module, host system with switching module electric signal connection realizes host system with information transfer between the switching module, switching module with communication module electric signal connection realizes switching module to different communication mode's switching, communication module is used for the communication of master control and car navigation equipment product, server and computer end, alarm module with host system electric signal connection realizes the warning indication when the controller breaks down. The controller realizes four communication modes of CAN communication, RS232 communication, RS485 communication and USB communication, CAN be configured with automobile navigation products of different assemblies, and has high adaptability and stable communication.

Description

Controller for assembling automobile navigation product

Technical Field

The utility model relates to a driving navigation technical field, concretely relates to a controller for car navigation product equipment.

Background

In recent years, the development of car navigation systems has been very rapid. At present, people can select a navigation system as a selective configuration when purchasing a new car, can install the equipment on an existing car, and can even configure a mobile satellite navigation system or take the equipment to travel in the field and climb mountains. The satellite navigation system for automobile drivers to direct the road has the following 4 important factors: satellite signals, signal reception, signal processing, and a map database. The vehicle-mounted navigation has the function of a GPS (global positioning system), and the exact position of the vehicle can be known anytime and anywhere when the vehicle is driven.

In the prior art, when different car navigation products are assembled, different controllers and control programs need to be configured due to different product models and different communication modes, so that the task load is large and the working efficiency is low.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a controller for car navigation product equipment, this controller has realized four kinds of communication methods of CAN communication, RS232 communication, RS485 communication, USB communication, CAN dispose the car navigation product of different equipment, and the adaptation degree is high, and the communication is stable.

The utility model adopts the technical proposal that: the utility model provides a controller for car navigation product equipment, includes host system, switching module, communication module and alarm module, host system with switching module signal connection realizes host system with information transfer between the switching module, switching module with communication module signal connection realizes switching module to the switching of different communication modes, communication module is used for the communication of master control and car navigation equipment product, server and computer end, alarm module with host system signal connection realizes the alarm indication when the controller breaks down.

Further, communication module includes RS232 communication unit, RS485 communication unit, USB communication unit and CAN communication unit, RS232 communication unit, RS485 communication unit, USB communication unit all with switching module signal of telecommunication connects for realize the information transceiver between car navigation product and the host system, CAN communication module with host system signal of telecommunication connects for the acquisition of car navigation product information is in order to realize the detection to the car navigation product.

The utility model discloses in, still include input module and output module, input module with the host system electricity signal connection, input module is used for the positional information of input car navigation product, output module with the host system electricity signal connection for control automatically controlled device action.

The utility model discloses in, still include power module, power module with the equal signal of telecommunication of host system, switching module, communication module is connected for provide the power for each module.

Further, the main control module includes core board U2 and core board connector M201, core board connector M201 through insert row J2, J3 with core board U2 is connected, core board connector M201 is connected with communication switch, communication switch includes automatic switch SW202 and manual switch SW201, SW203, SW209 and SW210, communication switch is used for realizing the setting of communication mode.

The alarm module comprises an alarm BZ201, and the alarm BZ201 is connected with a No. 50 pin of the core board connector M201 through a triode Q201 and a resistor R213.

The switching module includes chip U301, chip U301's X, Y port respectively with the PA9 of core board connector M201, PA10 port correspond to be connected, are used for realizing chip U301 with master control module's information transmission, chip U301's X0, X1, Y0, Y1 port with RS232 communication unit connects, is used for realizing the chip with RS232 communication unit's signal transmission, chip U301's X2, Y2 port with RS485 communication unit connects, be used for realizing chip U301 with RS485 communication unit's signal transmission, chip U301's X3, Y3 port with USB communication unit connects, is used for realizing, chip U301 with USB communication unit's signal transmission.

The utility model discloses in, it is preferred, the RS232 communication unit includes chip U302, the model of chip U302 is MAX3232ESE, chip U302 is connected with 232 interface J301 and 232 interface J302, interface J301 and interface J302 are used for PC or product communication.

The utility model discloses in, it is preferred, the RS485 unit includes chip U401, chip U401's model is MAX485E, chip U401's 2, 3 number pins are connected with communication bus, chip U401's 6, 7 number pins are connected with 485 interface J401, 485 interface J401 is used for realizing the product communication.

The utility model discloses in, it is preferred, the USB communication unit includes chip U501, chip U501's model is CH340E, chip U501's No. 8, No. 9 pin with chip U301's No. 2, No. 15 pin correspond the connection, chip U501's No. 7 pin is connected with USB interface J501, USB interface J501's No. 2, No. 3 pin with chip U501's No. 2, No. 1 pin corresponds the connection, USB interface J501 is used for realizing the PC communication.

The utility model discloses in, it is preferred, the CAN communication unit includes chip U601, chip U601's model is TJA1051F, chip U601's 1, No. 4 pin with core plate connector M201's 38, No. 37 pins correspond and connect, chip U601's 6, No. 7 pins are connected with the CAN interface, the CAN interface is used for realizing the product communication.

The utility model has the advantages and positive effects that:

the controller is provided with four communication units, namely a CAN communication unit, an RS232 communication unit, an RS485 communication unit and a USB communication unit, the four communication units provide four different communication modes, automobile navigation products assembled in different modes CAN be configured, the adaptability is high, and the communication is stable. In the system, RS232 communication and RS485 communication can be selected according to different assembly processes of the automobile navigation product and are mainly used for obtaining program version information of the automobile navigation product, and the USB communication unit is mainly used for realizing PC communication because the 232 interface is inconvenient for electronic equipment such as a notebook computer and the like. In the system, the CAN communication unit is mainly used for acquiring various data and state information of the automobile navigation product, so that the test of the automobile navigation product is realized. Therefore, the controller system is suitable for automobile navigation products with different communication modes, products with different communication modes do not need to be configured independently, automatic control is achieved through multiple processes, time wasted by manual operation is saved, and error operation is reduced.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic overall block diagram of the present invention;

fig. 2 is a circuit diagram of the power module of the present invention;

fig. 3 is a circuit diagram of the core board U2 in the main control module of the present invention;

fig. 4 is a circuit diagram of a core board connector M201 in the main control module of the present invention;

fig. 5 is a circuit diagram of an alarm module of the present invention;

fig. 6 is a circuit diagram of the switching module and the RS232 communication unit of the present invention;

fig. 7 is a circuit diagram of the RS485 communication unit of the present invention;

fig. 8 is a circuit diagram of the USB communication unit of the present invention;

fig. 9 is a circuit diagram of the CAN communication unit of the present invention;

fig. 10 is a circuit diagram of an input module of the present invention;

fig. 11 is a circuit diagram of an output module according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in fig. 1 to 11, the utility model provides a controller for car navigation product equipment, as shown in fig. 1, including host system, switching module and communication module, host system with switching module electric signal connection realizes host system with information transfer between the switching module, switching module with communication module electric signal connection realizes switching module to the switching of different communication methods, communication module is used for master control and car navigation equipment product communication. Specifically, in this embodiment, the communication module is provided with different communication modes, and the main control module can directly control the switching module to switch according to different communication modes of different car navigation products, so as to realize the communication of the car navigation products. The system has high adaptability and stable communication.

Furthermore, the system also comprises an input module and an output module, wherein the input module is in electrical signal connection with the main control module, the input module is used for inputting the position information of the automobile navigation product, and the output module is in electrical signal connection with the main control module and is used for controlling the action of the electric control device.

Furthermore, the system also comprises a power supply module and an alarm module, wherein the power supply module is in electric signal connection with the main control module, the switching module and the communication module and is used for supplying power to each module. The alarm module is in electric signal connection with the main control module and is used for alarming communication abnormity.

In this embodiment, it is further, communication module includes RS232 communication unit, RS485 communication unit, USB communication unit and CAN communication unit, RS232 communication unit, RS485 communication unit, USB communication unit all with switching module signal of telecommunication connects for realize the information transceiver between car navigation product and the host system, CAN communication module with host system signal of telecommunication connects for the acquisition of car navigation product information is in order to realize the detection to car navigation product.

In this embodiment, the communication module provides four communication modes of RS232, RS485, USB and CAN, and the RS232 communication and the RS485 communication CAN be selected according to different assembly processes of the car navigation product, and are mainly used for obtaining program version information of the car navigation product. In the system, the CAN communication unit is mainly used for being connected with the automobile navigation product, acquiring the state and various data of the automobile navigation product, such as information messages of the CAN and the like, and transmitting the data to the main control module to realize the detection of the automobile navigation product. Therefore, the controller is suitable for automobile navigation products with different communication modes, products with different communication modes do not need to be configured independently, automatic control is achieved through multiple processes, time which is considered to be wasted in operation is saved, and misoperation is reduced.

In this embodiment, specifically, as shown in fig. 2, the power module includes a chip U101, the model of the chip U101 is TPS5430DDA, pin No. 7 of the chip U101 is connected to pin No. 1 of the chip J101, the chip J101 is an external alternating current 12V power supply, and the chip U101 is a power conversion chip and is configured to convert a 12V voltage provided by the chip J01 into 5V. No. 1 pin of the chip U101 is connected with a chip U102 through a capacitor C103 and an inductor L101, the model of the chip U102 is AZ1117, and the chip U102 is used for converting 5V voltage into 3.3V voltage to supply power to each chip in the system.

As shown in fig. 3 and 4, the main control module includes a core board U2 and a core board connector M201, the core board connector M201 is connected to the core board U2 through a socket J2, J3, and the model of the core board U2 is STM32F072RBT, which has low power consumption, simple development environment and easy operation.

Pins

1, 19, 32, 64, 13 and 48 of the core board U2 are used for connecting a 3.3V power supply, the 3.3V power supply is provided by a power module, pin 7 of the core board U2 is connected with a reset switch SW1 through a capacitor C5 and a resistor R3 for resetting the core board U2, pin 3 and pin 4 of the core board U2 are connected with a first oscillation circuit composed of a resistor R2, a capacitor C3, a capacitor C4 and a crystal Y1, pin 5 and pin 6 of the core board U2 are connected with a second oscillation circuit composed of a resistor R1, a capacitor C1, a point capacitor C2 and a crystal Y2, and the first oscillation circuit and the second oscillation circuit are used for providing basic clock signals, so that the oscillation frequency of the circuit is more stable. The core board U2 61, 62 is connected with a chip U4, the model of the chip U4 is AT24CS02-SSHM, the chip U4 is a memory for storing communication information, and the information stored in the power-off condition can not disappear.

The core board connector M201 is connected with a communication switch, the communication switch includes an automatic switch SW202 and manual switches SW201, SW203, SW209 and SW210, and the communication switch is used for setting a communication mode. The manual switches SW201, SW203, SW209 and SW210 respectively control four communication modes of RS232, RS485, USB and CAN correspondingly, when switching manually, only the manual switch of the corresponding communication mode needs to be pressed, the switch is closed, the selected communication information is transmitted to the core board connector M201, and the core board connector M201 controls the switching module to switch the corresponding communication mode so as to realize the communication of the product. Four branches are built in the automatic switch SW202 for automatically controlling the four communication modes. Pins No. 40 to 47 of the core board connector M201 are connected to the input module to realize signal transmission with the input module, and pins No. 4 to 11 of the core board connector M201 are connected to the output module to realize control of the output module by the core board connector M201 to output signals.

Further, as shown in fig. 5, the alarm module includes an alarm BZ201, the alarm BZ201 is connected to the pin No. 50 of the core board connector M201 through the triode Q201 and the resistor R213, when communication is abnormal or a circuit fails, the core board connector M201 outputs a signal to turn on the triode Q201, and the alarm BZ201 sends an alarm signal to prompt an operator of a failure.

As shown in fig. 6, the switching module includes a chip U301, the model of the chip U301 is CD4052, the X, Y ports of the chip U301 are respectively connected to PA9 and PA10 ports of the core board connector M201, so as to implement information transmission between the chip U301 and the core board connector M201, the X0, X1, Y0 and Y1 ports of the chip U301 are connected to the RS232 communication unit, so as to implement signal transmission between the chip U301 and the RS232 communication unit, the X2 and Y2 ports of the chip U301 are connected to the RS485 communication unit, so as to implement signal transmission between the chip U301 and the RS485 communication unit, and the X3 and Y3 ports of the chip U301 are connected to the USB communication unit, so as to implement signal transmission between the chip U301 and the USB communication unit. Specifically, the chip U301 is an analog switch, and the signal switching function in the signal link is mainly completed by controlling the switching mode of the MOS transistor.

The utility model discloses in, it is preferred, RS232 communication unit includes chip U302, chip U302's model is MAX3232ESE, and chip U302's 11, 10, 12, 9 number pins correspond with chip U301's 12, 14, 1, 5 number pins and are connected, chip U302's 13, 14 are connected with 232 interface J301, and 7, 8 number pins are connected with 232 interface J302, interface J301 and interface J302 are used for PC or car navigation product communication.

As shown in fig. 7, in the utility model discloses, it is preferred, the RS485 unit includes chip U401, chip U401's model is MAX485E, chip U401's 2, No. 3 pin are connected with communication bus, and communication bus is used for realizing the transmission and the transfer of signal, chip U401's 6, No. 7 pin are connected with 485 interface J401, 485 interface J401 is used for realizing the communication of controller and car navigation product.

As shown in fig. 8, in the utility model discloses, it is preferred, the USB communication unit includes chip U501, chip U501's model is CH340E, chip U501's 8, 9 number pins with chip U301's 2, 15 number pins correspond to be connected, chip U501's 7 number pins are connected with USB interface J501, USB interface J501's 2, 3 number pins with chip U501's 2, 1 number pins correspond to be connected, USB interface J501 is used for realizing the PC communication, because electronic product such as notebook utilizes 232 interface communication inconvenient, consequently, chooses for use the USB interface so that the communication of electronic product such as notebook.

As shown in fig. 9, in the utility model discloses, it is preferred, the CAN communication unit includes chip U601, the model of chip U601 is TJA1051F, chip U601's 1, No. 4 pin with core board connector M201's 38, No. 37 pin correspond and are connected for realize chip U601 and host system's signal transmission, chip U601's 6, No. 7 pin are connected with the CAN interface, the CAN interface is used for realizing the product communication. Specifically, because car navigation product all has the CAN communication, in this embodiment, utilize the CAN interface to be connected with car navigation product for obtain car navigation product's state and various data, such as CAN's information message etc. transmit data for host system and detect data, and with transmitting to high in the clouds on the testing result.

Further, as shown in fig. 10, the input module includes a plurality of identical input circuits, the input circuits include a coupler U701D, pins 7 and 8 of the coupler U701D are connected to the photo sensor J701, the photo sensor J701 is used to assist in detecting the position of the navigation product, pin 10 of the coupler U701D is connected to pin 40 of the core board connector M201 and is used to transmit the input signal to the main control module, specifically, in this embodiment, 8 optical coupling isolation circuits are provided and can be selected according to different assembly processes, the detection signal of the photo sensor J701 is isolated by the coupler U701D, stability of signal transmission is increased, and the detection signal is transmitted to the main control module to provide the position information of the navigation product.

Further, as shown in fig. 11, the output module includes a plurality of identical output circuits, each of the output circuits includes a coupler U801A, pin 2 of the coupler U801A is connected to pin 8 of the core board connector M201, pin 16 of the coupler U801A is connected to the MOS transistor Q801 through the resistor R804, and the MOS transistor Q801 is grounded through the light emitting diode D801 and the resistor R807. Specifically, the main control module transmits the control signal to the coupler U801A for signal isolation, and outputs the control signal from pin 1 of the coupler U801A to control the operation of external devices, such as relays, solenoid valves, or cylinders for fixing car navigation products.

The working principle of the utility model is as follows:

this controller is applicable to the equipment engineering of car navigation product, it is concrete, input module is equipped with 8 way photoelectric sensor J701 to J708, can select according to different equipment needs, photoelectric sensor J701 to J708 are used for fixing a position the car navigation product, photoelectric sensor J701's detected signal keeps apart through coupler U701D, increase signal transmission's stability, signal transmission through keeping apart gives host system, host system is according to this information control output module output signal, act such as with control external equipment relay, solenoid valve. Wherein. The output module and the input module are arranged oppositely, and one path to multiple paths can be selected according to the assembly processes of different navigation products.

In this embodiment, the controller is provided with four communication modes to realize communication between the controller and different car navigation products, servers and computer terminals, specifically, the communication modes are set according to different car navigation products, for example, when RS232 communication is selected, the manual switch SW201 is pressed, the control module receives information and transmits the information to the switching module, and the switching module switches the communication modes to enable MOS transistors of the corresponding communication modes to be connected, so that the RS232 communication unit is connected, and communication between the controller and the car navigation products is realized. The RS232 communication unit and the RS485 communication unit are selected according to the assembly process of different automobile navigation products, are mainly used for acquiring the program version information of the automobile navigation products, and can also be networked through corresponding communication interfaces such as a 485 interface J401 to be connected with a server to realize remote control. Because the RS232 interface is inconvenient for the communication of the electronic equipment such as the notebook computer, the USB interface in the USB communication unit can be selected to realize the communication between the controller and the electronic equipment. All be equipped with the CAN communication in the car navigation product, in this embodiment, mainly utilize the CAN interface to be connected with the car navigation product for obtain the state and various data of car navigation product, like CAN's information message etc. transmit data for host system with detect data, and with the high in the clouds of transmitting on the testing result. Therefore, the controller system is suitable for automobile navigation products with different communication modes, products with different communication modes do not need to be configured independently, the adaptability is high, and the communication is stable.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The utility model provides a controller for car navigation product equipment, its characterized in that, includes host system, switching module, communication module and alarm module, host system with switching module signal connection realizes host system with information transfer between the switching module, switching module with communication module signal connection realizes switching module to different communication methods's switching, communication module is used for the communication of master control and car navigation equipment product, server and computer end, alarm module with host system signal connection realizes the warning indication when the controller breaks down.

2. The controller for assembling car navigation products of claim 1, wherein the communication module comprises an RS232 communication unit, an RS485 communication unit, a USB communication unit and a CAN communication unit, the RS232 communication unit, the RS485 communication unit and the USB communication unit are all in electrical signal connection with the switching module for realizing information transceiving between the car navigation products and the main control module, and the CAN communication module is in electrical signal connection with the main control module for acquiring car navigation product information to realize detection of the car navigation products.

3. The controller for assembling car navigation products according to claim 1, further comprising an input module, an output module and a power module, wherein the input module is electrically connected with the main control module, the input module is used for inputting position information of car navigation products, the output module is electrically connected with the main control module and used for controlling the action of an electric control device, and the power module is electrically connected with the main control module, the switching module and the communication module and used for providing power for each module.

4. The controller of claim 2, wherein the main control module comprises a core board U2 and a core board connector M201, the core board connector M201 is connected to the core board U2 through a socket J2, J3, the core board connector M201 is connected to a communication switch, the communication switch comprises an automatic switch SW202 and manual switches SW201, SW203, SW209 and SW210, and the communication switch is used for setting a communication mode.

5. The controller for automobile navigation product assembly according to claim 4, wherein the alarm module comprises an alarm BZ201, and the alarm BZ201 is connected with a No. 50 pin of the core board connector M201 through a triode Q201 and a resistor R213.

6. The controller of claim 5, wherein the switching module comprises a chip U301, ports X, Y of the chip U301 are respectively connected to ports PA9 and PA10 of the core board connector M201, and are configured to transmit information between the chip and the main control module, ports X0, X1, Y0 and Y1 of the chip U301 are connected to the RS232 communication unit, and are configured to transmit signals between the chip U301 and the RS232 communication unit, ports X2 and Y2 of the chip U301 are connected to the RS485 communication unit, and are configured to transmit signals between the chip U301 and the RS485 communication unit, and ports X3 and Y3 of the chip U301 are connected to the USB communication unit, and are configured to transmit signals between the chip U301 and the USB communication unit.

7. The controller for automobile navigation product assembly as set forth in claim 5, wherein said RS232 communication unit comprises a chip U302, said chip U302 has a model MAX3232ESE, said chip U302 is connected with 232 interfaces J301 and J302, said interfaces J301 and J302 are used for PC or product communication.

8. The controller for automobile navigation product assembly according to claim 6, wherein the RS485 unit comprises a chip U401, the model of the chip U401 is MAX485E, the No. 2 and No. 1 pins of the chip U401 are connected with a communication bus, the No. 6 and No. 7 pins of the chip U401 are connected with a 485 interface J401, and the 485 interface J401 is used for realizing product communication.

9. The controller for assembling car navigation products according to claim 7, wherein the USB communication unit includes a chip U501, the model of the chip U501 is CH340E, pins 8 and 9 of the chip U501 are correspondingly connected to pins 2 and 15 of the chip U301, pin 7 of the chip U501 is connected to a USB interface J501, pins 2 and 3 of the USB interface J501 are correspondingly connected to pins 2 and 3 of the chip U501, and the USB interface J501 is used for realizing PC communication.

10. The controller for automobile navigation product assembly according to claim 5, wherein the CAN communication unit comprises a chip U601, the model of the chip U601 is TJA1051F, pins No. 1 and No. 4 of the chip U601 are correspondingly connected with pins No. 38 and No. 37 of the core board connector M201, and pins No. 6 and No. 7 of the chip U601 are connected with CAN interfaces, and the CAN interfaces are used for realizing product communication.