CN210609445U

CN210609445U - Function expansion device of vehicle-mounted monitoring video recorder

Info

Publication number: CN210609445U
Application number: CN201922003493.5U
Authority: CN
Inventors: 张德进
Original assignee: Shanghai Tongli Information Technology Co ltd
Current assignee: Shanghai Tongli Information Technology Co ltd
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-05-22
Anticipated expiration: 2029-11-19

Abstract

The utility model provides an on-vehicle control video recorder function extension device, including four 232 serial ports interface (SP3232), a 485 serial ports interface (SP485), CAN interface (TJA1040), extension four ways IO signal input gathers and IO output all the way. The utility model discloses a MCU forwards serial port equipment data, CAN data, IO signal to the on-vehicle monitoring video recorder host computer, has realized the demand that more complex functions insert, makes the application scene of on-vehicle monitoring video recorder wideer, wider.

Description

Function expansion device of vehicle-mounted monitoring video recorder

Technical Field

The utility model relates to a function extension device field specifically relates to an on-vehicle control video recorder function extension device.

Background

The vehicle-mounted monitoring video recorder is limited by factors such as universality and cost, generally, the accessible external equipment is limited, the video recorder can only access one serial port device, four paths of IO input detection are realized, and one path of IO output is realized. In many situations, more sensors need to be collected, data of the sensors needs to be analyzed, presented, and abnormal prompt is processed, and the collectors also need to be networked for remote supervision and abnormal intervention.

On-vehicle control video recorder function extension device, include the serial port line of being connected with the host computer, the power cord, MCU, SP3232, SP485, TJA1040, IO control circuit, peripheral hardware serial port connecting wire, the signal input line, signal output line, the CAN bus, operating condition pilot lamp, handle through software, on the basis that does not improve original host computer cost, realize inserting more sensors, support more functions, realize the networking of more data, the suitability of host computer product has been promoted.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing an on-vehicle control video recorder function extension device.

According to the utility model provides a pair of vehicle-mounted monitoring video recorder function extension device, handle chip and IO control circuit including main processor MCU, 232 serial ports chip, 485 serial ports chip, CAN, wherein:

the main processor MCU is connected with the 232 serial port chip and the 485 serial port chip through UART pins;

the main processor MCU is connected with the CAN processing chip through a CAN pin;

the main processor MCU is connected with the IO control circuit through a GPI pin.

Preferably, the CAN processing chip comprises a TJA1040 chip; the 232 serial port chip comprises an SP3232 serial port chip; the 485 serial port chip comprises an SP485 serial port chip.

Preferably, the main processor MCU comprises a NUC131 chip.

Preferably, the 232 serial port chip can be externally connected with an on-board 232 sensor through a 232 data line.

Preferably, the 485 serial port chip can be externally connected with a vehicle-mounted 485 peripheral device through a 485 data line.

Preferably, the 232 serial port chip comprises four 232 serial ports.

Preferably, the IO control circuit includes four IO input detection ports and one IO output port.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a serial port extension device, has expanded the access of serial port peripheral hardware, can realize data acquisition, analysis, networking, the unusual warning of more serial port sensors;

2. the utility model expands the CAN data of the host machine accessing the vehicle through the CAN interface device, thereby collecting the running data of the vehicle, monitoring the running state of the vehicle in real time, and even controlling the vehicle;

3. the utility model discloses a IO circuit control device realizes the host computer to the collection of more signals of vehicle, for example: door, headlight, indicator light, brake, etc.

4. The utility model provides the suitability and the competitiveness of product have been promoted.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a hardware design block structure diagram of a function expansion device of a vehicle-mounted monitoring and video recorder.

Detailed Description

The present invention will be described in detail with reference to the following embodiments. The following examples will assist those skilled in the art in further understanding the present invention, but are not intended to limit the invention in any way. It should be noted that various changes and modifications can be made by one skilled in the art without departing from the spirit of the invention. These all belong to the protection scope of the present invention.

As shown in FIG. 1, according to the utility model provides an on-vehicle control video recorder function extension device, including host processor MCU, 232 serial ports chip SP3232, 485 serial ports chip SP485, CAN processing chip TJA1040, IO control circuit, LED operation lamp. The device comprises four 232 serial ports, a CAN device, four paths of IO input detection and one path of IO output.

The utility model discloses specific connection use as follows: the vehicle-mounted monitoring video recorder host provides a working power supply for the device through a power line and carries out data communication with the device through a 232 data line; the vehicle-mounted 232 sensor is accessed through a 232 data line, and transmits data to the host through the SP3232 and the MCU; the vehicle-mounted 485 peripheral equipment is communicated with the host through the SP485 and the MCU to control the peripheral equipment, such as a holder and other devices; the vehicle CAN data is transmitted to the host through a CAN bus, TJA1040 and MCU; the vehicle IO signal is collected and sent to the host computer by the MCU through the IO signal collection line that inserts the device, realizes the host computer and to the collection of vehicle signal. More specifically, the host is connected with the peripheral through a serial port line of the expansion device, and then data is acquired and transmitted with the peripheral through the MCU and the SP3232, so that the host can acquire, present and process data, and networking of the peripheral is realized. The serial port line of the expansion device is connected, and then the MCU, the TJA1040 and the vehicle CAN are in butt joint, so that the host CAN collect the running data and the oil level state of the vehicle, and even CAN remotely control and lock the vehicle. The host computer passes through extension device's serial port line connection, and rethread MCU, IO control circuit gather the IO signal, make the host computer can gather the signal on more vehicles, for example turn signal, headlight, door status signal. The host machine is connected through a serial port line of the expansion device, an IO signal is output through the MCU and the IO control circuit, and the IO output is connected with the alarm, so that the abnormal state of the vehicle can be prompted to a driver; IO output is connected with the oil circuit controller, and oil cut/power cut control can be remotely carried out on the vehicle.

The foregoing description of the specific embodiments of the invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by those skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.

Claims

1. The utility model provides an on-vehicle monitoring video recorder function extension device, its characterized in that includes that owner processor MCU, 232 serial ports chip, 485 serial ports chip, CAN handle chip and IO control circuit, wherein:

2. The on-board monitoring video recorder function expansion device according to claim 1, wherein the CAN processing chip includes a TJA1040 chip; the 232 serial port chip comprises an SP3232 serial port chip; the 485 serial port chip comprises an SP485 serial port chip.

3. The function expansion device of the vehicle-mounted monitoring and video recorder of claim 1, wherein the main processor MCU comprises a NUC131 chip.

4. The function expanding device of the vehicle-mounted monitoring video recorder as claimed in claim 1, wherein the 232 serial port chip can be externally connected with a vehicle-mounted 232 sensor through a 232 data line.

5. The function expansion device of the vehicle-mounted monitoring video recorder as claimed in claim 1, wherein the 485 serial port chip can be externally connected with a vehicle-mounted 485 peripheral device through a 485 data line.

6. The function expansion device of the vehicle-mounted monitoring and video recorder as claimed in claim 1, wherein the 232 serial port chip comprises four 232 serial ports.

7. The function expanding device of the vehicle-mounted monitoring video recorder as claimed in claim 1, wherein the IO control circuit comprises four IO input detection ports and one IO output port.