CN211429349U

CN211429349U - Liquid crystal key system and client control system based on intelligent automobile

Info

Publication number: CN211429349U
Application number: CN201922464808.6U
Authority: CN
Inventors: 冯如伟; 孟祥旭; 周波; 李学强
Original assignee: Changzhou Futong Photoelectric Technology Co ltd
Current assignee: Changzhou Futong Photoelectric Technology Co ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-09-04
Anticipated expiration: 2029-12-31

Abstract

The utility model relates to a car networking device field especially relates to a based on intelligent automobile liquid crystal key system and customer end control system. The power supply module comprises a first main controller and a power supply module for supplying power to the first main controller; the input end of the first main controller is respectively connected with the detection module, the RTC clock and the touch key detection module; the output end of the first main controller is respectively connected with the communication module and the liquid crystal display module; provided is a vehicle-mounted Internet of things terminal device.

Description

Liquid crystal key system and client control system based on intelligent automobile

Technical Field

The utility model relates to a car networking device field especially relates to a based on intelligent automobile liquid crystal key system and customer end control system.

Background

In recent years, along with the level of automobile electronic intellectualization and the level of the internet of things are improved, more and more intelligent electronic technologies are applied to automobiles, so that a lot of convenience is brought to life, and huge market business opportunities are created at the same time. Compared with a power assembly, a vehicle body and a chassis system, the ADAS and the information entertainment system are innovative and active zones of vehicle electronics, and reflect strong market demands of the vehicle in the aspects of intellectualization and networking. At present, traditional automotive electronic applications such as automotive lighting, tire pressure monitoring, ABS, driving assistance systems and the like are developed to be mature, only the field of the internet of vehicles is in the initial stage of development, and a large number of business opportunities are hidden.

And (5) networking the vehicles. As the name suggests, the automobile control and the automobile body information access network can realize remote access and control, and bring great convenience to users. For example, if the automobile tail box is not close to the parking position, the temperature in the automobile is too high in summer, and the air conditioner is started to cool remotely; forgetting a parking position in a parking lot, and remotely searching a car by one key; forgetting whether to lock the vehicle door, remotely locking the vehicle, and the like are all the convenience brought by the vehicle networking technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a vehicle-mounted Internet of things terminal equipment (like intelligent key, APP).

The technical scheme of the utility model as follows:

the client control system comprises a main controller and a power supply module for supplying power to the main controller; the input end of the main controller is respectively connected with the detection module, the RTC clock and the touch key detection module; the output end of the main controller is respectively connected with the communication module and the liquid crystal display module.

The detection module comprises a temperature sensing circuit and a voltage detection circuit; the temperature sensing circuit and the voltage detection circuit are connected with the input end of the main controller through the AD conversion module.

And a charging and discharging management module is also connected between the main controller and the power supply module.

The liquid crystal display module is a liquid crystal panel.

The power supply module comprises a power supply conversion circuit.

The power conversion circuit is a voltage reduction and stabilization circuit.

A liquid crystal key system based on an intelligent automobile comprises a client control system, an automobile body end control system and a cloud server; the client control system is in communication connection with the cloud server, and the vehicle body end control system is in communication connection with the cloud server; the vehicle body end control system comprises a second main controller; the input end of the second main controller is respectively connected with the converter, the RTC clock circuit, the communication module and the temperature sensor; the output end of the second main controller is in communication connection with the CAN bus transceiver; the CAN bus transceiver is respectively connected with the engine, the vehicle door, the lamplight, the air conditioner, the loudspeaker and the fuel in a communication mode.

The utility model has the advantages that: the invention relates to an automobile remote key (liquid crystal display panel), which belongs to a product combining the technology of Internet of things and automobile electronics, and has the following principle: the key (client) adopts MCU to drive the liquid crystal panel, and displays various information data of the vehicle, such as the temperature in the vehicle, the residual oil quantity, the level electric quantity, the one-key vehicle searching, the vehicle door state, the tire pressure data, the remote door opening, the remote starting and other information. The MCU starts the RTC real-time clock function, downloads data from the cloud platform server according to preset frequency, and displays the data on the liquid crystal panel after being analyzed by the MCU.

Drawings

The foregoing and other objects, features, and advantages of the invention will be apparent from the following detailed description taken in conjunction with the accompanying drawings.

Wherein: FIG. 1 is a schematic diagram of a client control system according to the present invention;

FIG. 2 is a schematic diagram of the body end control system of the present invention;

fig. 3 is a schematic view of the communication principle of the cloud server of the present invention;

FIG. 4 is a flowchart of the client program of the present invention;

FIG. 5 is a schematic diagram of the voltage stabilizing circuit of the present invention;

FIG. 6 is a schematic diagram of CAN bus communication of the present invention;

in the attached drawing, 1 is the main control unit, 2 is the power module, 4 is the RTC clock, 5 is touch button detection module, 6 is communication module, 9 is the liquid crystal display module, 10 is the charging and discharging management module, 11 is automobile body end control system, 12 is the high in the clouds server, 13 is client control system, 14 is the second main control unit, 15 is the converter, 16 is the RTC clock circuit, 17 is the second communication module, 18 is temperature sensor, 19 is CAN bus transceiver.

Detailed Description

Referring to fig. 1-6, a client control system includes a main controller 1 and a power module 2 for supplying power to the main controller; the input end of the main controller is respectively connected with the detection module, the RTC clock 4 and the touch key detection module 5; the output end of the main controller is respectively connected with the communication module 6 and the liquid crystal display module 9. The detection module comprises a temperature sensing circuit (temperature sensor circuit) and a voltage detection circuit; the temperature sensing circuit and the voltage detection circuit are connected with the input end of the main controller through the AD conversion module. The MCU starts the RTC real-time clock function, downloads data from the cloud platform server according to preset frequency, and displays the data on the liquid crystal panel after being analyzed by the MCU. The communication module preferably adopts a mini-singlechip such as STM8 with ARM core, the network communication part can adopt the current mainstream GPRS and 4G communication, wherein the GPRS communication based on 2G mode has the biggest characteristic of low cost, but the transmission rate is low, and for the design, the data volume required to be transmitted is very low, so the GPRS can meet the requirement, such as the SIM800 whole network communication wireless communication module which is withdrawn from Shanghai mobile remote company.

A charging and discharging management module 10 is also connected between the main controller and the power supply module; the power supply module comprises a power supply conversion circuit; the power conversion circuit is a voltage reduction and stabilization circuit. The power supply conversion circuit adopts an MIC29302WU synchronous voltage reduction processing chip, and an MIC29302WU device is a 40V, 2A and voltage reduction voltage stabilizer with an integrated high-side MOSFET. By using the enable pin, the off supply current can be reduced to 1.3 μ A. The voltage of the vehicle body power supply generally fluctuates between 9 and 16, a voltage reduction and stabilization circuit is adopted in the design, and a 3.3V linear voltage stabilizer is added at the later stage to provide the working voltage required by the MCU.

The liquid crystal display module is a liquid crystal panel. The MCU is adopted to drive the liquid crystal panel to display various information data of the vehicle, such as the temperature in the vehicle, the residual oil quantity, the level electric quantity, the one-key vehicle searching, the vehicle door state, the tire pressure data, the remote door opening, the remote starting and the like

The main controller is a CC2530F256 main control chip. The automobile intelligent liquid crystal key is divided into a transmitter and a receiver, and near field communication at a receiving end can use a 2.4G wireless communication mode, such as Zigbee, 833HZ radio frequency and the like. The host chip may use CC2530F256, CC2530 in combination with the superior performance of the leading RF transceiver, industry standard enhanced 8051CPU, in-system programmable flash, 8-KB RAM and many other powerful functions. It has different operation modes, so that it is especially suitable for the system with ultra-low power consumption requirement. The short transition time between the operating modes further ensures low energy consumption. Considering the limited spatial layout inside the key, besides normal data acquisition and processing, ZigBee networking communication needs to be completed, so CC2530F256 is very suitable for application in the design. The built-in enhanced 8051MCU core has a clock frequency of 32 MHz, 4 general timers, 8A/D conversion channels and 16 general GPIO ports, and is enough for communicating with a host computer in a vehicle.

Compared with a control circuit at the vehicle body end, the key end is compact in spatial layout, the requirement on a human-computer interaction interface is high, and the design is in a low power consumption mode, so that the circuit needs to enter a sleep mode when the user is idle, and the user can wake up the circuit by touching a key or an entity key. Therefore, the MCU with low power consumption and an EEPROM is adopted when the MCU is selected, and after the key demand of a user is processed, the MCU carries out internal function code recognition, so that signals are sent to a server side through the SIM800 GPRS communication module.

A liquid crystal key system based on an intelligent automobile comprises a client control system 13, an automobile body end control system 11 and a cloud server 12; the client control system is in communication connection with the cloud server, and the vehicle body end control system is in communication connection with the cloud server; the vehicle body end control system comprises a second main controller 14; the input end of the second main controller is respectively connected with the converter 15, the RTC clock circuit 16, the second communication module 17 and the temperature sensor 18; the output end of the second main controller is in communication connection with the CAN bus transceiver 19; the CAN bus transceiver is respectively connected with the engine, the vehicle door, the lamplight, the air conditioner, the loudspeaker and the fuel in a communication mode. The vehicle body end depends on the MCU to obtain the data required to be collected, and communicates with the cloud end through the SIM800, the key is disconnected and depends on the MCU to download the required data from the cloud end in real time, and the server end needs to develop a self-monitoring software for forwarding, so as to build a bridge with two-end communication.

The CAN bus transceiver adopts a TJA1055 chip. The CAN transceiver adopts a TJA1055 chip, CAN enabling signals, TX and RX signals are connected with the single chip microcomputer, and CAN _ H, CAN _ L signals are hung on an automobile CAN bus. The single chip microcomputer receives signals from the cloud end, and the signals are compiled and converted into CAN bus signals matched with the automobile body, so that the automobile bus controller executes corresponding functions.

The whole automobile intelligent remote control key software is divided into automobile body end software and key end software, and an automobile body end software carrier is an MC9S12G64 single chip microcomputer. An STM32 singlechip is adopted.

The above is only the preferred embodiment of the present invention, not to the limitation of the present invention in any form, all the techniques of the present invention are substantially any simple modification and equivalent changes to the above embodiments, all falling within the protection scope of the present invention.

Claims

1. The client control system is characterized by comprising a first main controller and a power supply module for supplying power to the first main controller; the input end of the first main controller is respectively connected with the detection module, the RTC clock and the touch key detection module; the output end of the first main controller is respectively connected with the communication module and the liquid crystal display module.

2. The client control system of claim 1, wherein the detection module comprises a temperature sensing circuit and a voltage detection circuit; the temperature sensing circuit and the voltage detection circuit are connected with the input end of the main controller through the AD conversion module.

3. The client control system according to claim 1, wherein a charging and discharging management module is further connected between the first main controller and the power supply module.

4. The client control system of claim 1, wherein the liquid crystal display module is a liquid crystal panel.

5. The client control system of claim 1, wherein the power module comprises a power conversion circuit.

6. The client control system of claim 5, wherein the power conversion circuit is a buck regulator circuit.

7. An intelligent automobile-based liquid crystal key system is characterized by comprising the client control system, the automobile body end control system and a cloud server according to any one of claims 1-6; the client control system is in communication connection with the cloud server, and the vehicle body end control system is in communication connection with the cloud server; the vehicle body end control system comprises a second main controller; the input end of the second main controller is respectively connected with the converter, the RTC clock circuit, the second communication module and the temperature sensor; the output end of the second main controller is in communication connection with the CAN bus transceiver; the CAN bus transceiver is respectively connected with the engine, the vehicle door, the lamplight, the air conditioner, the loudspeaker and the fuel in a communication mode.