CN212258460U

CN212258460U - Fast-plugging coaxial cable independent power supply type navigation communication controller

Info

Publication number: CN212258460U
Application number: CN202020796689.4U
Authority: CN
Inventors: 卢志君; 陈杨; 陶泽丹; 姜金光; 王传波; 丛石磊; 陈婷婷
Original assignee: Institute of Oceanology of CAS
Current assignee: Institute of Oceanology of CAS
Priority date: 2020-05-14
Filing date: 2020-05-14
Publication date: 2020-12-29
Anticipated expiration: 2030-05-14

Abstract

The utility model provides a fast-plug coaxial cable independent power supply type navigation communication controller, which comprises a processor, a touch screen, a debugging and downloading interface, four fast-plug coaxial cable interface circuits, four serial port circuits, an indicator light, a charging circuit and a power supply circuit; the CPU is respectively electrically connected with the touch screen, the debugging and downloading interface, the four fast-inserting coaxial cable interfaces, the four serial ports, the indicator lamp and the power supply circuit, and the charging circuit is connected with the charging interface; the number of the indicator lamps is six, and the indicator lamps are respectively a power indicator lamp, an operation indicator lamp and four state indicator lamps; the debugging download interface is a JTAG debugging download interface, and the four fast-plugging coaxial cable interfaces support four paths of TTL pulse output signals. This is novel for scientific investigation ship has realized the collection and the sending of GPS data to and the data sharing and the TTL pulse signal between different equipment trigger the management.

Description

Fast-plugging coaxial cable independent power supply type navigation communication controller

Technical Field

The utility model belongs to the technical field of navigation communication device, especially, relate to a formula coaxial cable independent power source type navigation communication controller inserts soon.

Background

In the operation process of a scientific investigation ship, GPS data recording is required under specific conditions (such as each specific time) according to the setting of a user, and a trigger signal is sent to other equipment, the output data of the GPS equipment is the NMEA-0183 protocol which is most widely applied at present, upper computer software running on some equipment can be directly analyzed and processed, but some upper computer software can only identify GPS data in a specific format, and TTL pulse signal triggering is required to send the notification to the equipment. The navigation communication controller which can adapt to different upper computer software does not exist in the prior art, the rapid sharing of data cannot be realized, and the existing controller is strongly restricted by the external power supply environment, so that the application of the controller is greatly limited.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a formula coaxial cable independent power source type navigation communication controller inserts soon, this controller can forward other equipment through the serial ports with the GPS data that the serial ports was received according to user's specific requirement to by inserting formula coaxial cable output TTL level pulse signal soon, for scientific investigation ship realized the custom screening of GPS data, and data sharing and TTL pulse signal between different equipment trigger the management.

The utility model adopts the technical proposal that: the fast-plugging coaxial cable independent power supply type navigation communication controller comprises a processor, a touch screen, a plurality of coaxial cable interface circuits, a plurality of serial port circuits, a debugging download interface and a power supply circuit, wherein the touch screen, the plurality of coaxial cable interface circuits, the plurality of serial port circuits, the debugging download interface and the power supply circuit are respectively and electrically connected with the processor; the coaxial cable interface and the serial port are connected with field data acquisition equipment or an upper computer for communication.

The serial port circuit adopts the RS232 serial port, and the circuit connection includes: the PA2 and PA9 pins of the processor are respectively connected with the RS232 serial port chip, and then output pins T1-TX, T1-RX and GND form an RS232 interface circuit of a serial port COM 1; the PA3 and PA10 pins of the processor are respectively connected with the RS232 serial port chip, and then output pins T2-TX, T2-RX and GND form an RS232 interface circuit of the serial port COM 2.

Serial port circuit adopts the RS485 serial ports, and the circuit connection includes: after pins PA10, PA11 and PC10 of the processor pass through an RS485 serial port chip U6, an RS485 interface circuit of a serial port COM3 is formed by output pins T4-TX-and T4-TX +; after pins PD2, PD3 and PC12 of the processor pass through an RS485 serial port chip U7, output pins T5-TX-and T5-TX + form an RS485 interface circuit of a serial port COM 4.

The power supply circuit includes: the external power supply interface is grounded through a resistor R1 and is connected with the output end of the power supply circuit after passing through a diode D1, the external power supply interface is further connected with the grid electrode of a MOSEFT tube Q1, the source electrode of the MOSEFT tube Q1 is connected with the output end of the built-in lithium battery, and the drain electrode of the MOSEFT tube Q1 is connected with the output end of the power supply circuit.

Still include the charging circuit: an external charging power supply VDD input by a charging interface is grounded through a capacitor C1, the external charging power supply VDD is connected with the base electrode of a triode VT1 through a resistor R1, the base electrode of the triode VT1 is connected with the emitting electrode of a triode VT1 through a resistor R2, the base electrode of the triode VT1 is grounded through a voltage stabilizing diode WD1, the emitting electrode of the triode VT1 is grounded after being connected with a resistor R4 through a light emitting diode D2, the collector electrode of the triode VT1 is connected with one end of a light emitting diode D1, which is connected with a resistor R4 through a resistor R3, a lead-out conductor of the collector electrode of the triode VT1 is.

The touch screen is a resistance touch screen, and serial port communication parameters are configured through the resistance touch screen.

The coaxial cable interface is a quick plug-in type and outputs TTL pulse signals.

The debugging downloading interface is a JTAG debugging downloading interface.

The external power supply interface collects direct current between 5 and 7V.

The device also comprises a plurality of indicator lights which are respectively connected with the processor, the external power interface and the plurality of serial ports to display the working state.

After the technical scheme is adopted, the utility model discloses the beneficial effect who has does:

(1) the data is output to TTL level through a coaxial cable to other equipment, so that the real-time performance and the synchronism of the data can be ensured;

(2) the data can be output through a plurality of serial ports according to a format set by a user, so that the data can be shared with other upper computers;

(3) baud rate, data bit, check bit and stop bit of each serial port can be set through a touch screen respectively, and data butt joint with various sensors and output equipment is guaranteed;

(4) the parameter configuration and the input and output data can be displayed on the touch screen in real time, and a user can monitor the parameters in real time through the touch screen;

(5) the convenience of the device is enhanced by the built-in lithium battery, the device is convenient for engineers to carry, and the constraint of an external power supply is avoided.

Drawings

Fig. 1 is a block diagram of the present invention;

fig. 2 is a schematic diagram of the internal circuit structure of the present invention;

fig. 3 is a schematic diagram of a charging circuit of the present invention;

FIG. 4 is a schematic diagram of the power supply circuit of the present invention;

FIG. 5 is a schematic diagram of the circuit connection between the processor and the lithium battery of the present invention;

fig. 6 is a schematic diagram of the electrical connection of the processor to the COM1 and COM2 interfaces according to the present invention;

fig. 7 is a schematic diagram of the electrical connection of the processor to the COM3 and COM4 interfaces according to the present invention;

the system comprises a processor 1, a touch screen 2, a coaxial cable interface 3, a serial port 4, a debugging and downloading interface 5, an external power interface 6, a charging interface 7, a built-in lithium battery 8, an indicator lamp 9, a power supply circuit 10 and a charging circuit 11.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are for the purpose of illustrating the invention, but are not intended to limit the scope of the invention.

Example 1: the structure of the rapid-insertion type coaxial cable independent power supply type navigation communication controller is shown in a reference figure 1-2, and the rapid-insertion type coaxial cable independent power supply type navigation communication controller comprises a processor 1, a touch screen 2, a debugging download interface, four rapid-insertion type coaxial cable interfaces 3, four serial ports 4, a debugging download interface 5, an indicator lamp 9, a charging interface 7, an external power supply interface 6, a power supply circuit 10 and a charging circuit 11; the processor 1 is respectively electrically connected with the touch screen 2, the debugging and downloading interface 5, the four fast-plugging coaxial cable interfaces 3, the four serial ports 4, the power supply circuit 10 and the indicator lamp 9, the power supply circuit 10 is connected with the external power supply interface 6, the external power supply interface 6 is connected with the processor 1 through the power supply circuit 10, and the charging interface 7 is connected with the power supply circuit 10 after being connected with the built-in lithium battery 8 through the charging circuit 11; six indicator lights 9 are provided, which are respectively a power indicator light, an operation indicator light and four status indicator lights (corresponding to the work indication of each serial port); the debugging download interface is a standard JTAG debugging download interface, and four quick-plugging coaxial cable interfaces 3 support four paths of TTL pulse output signals. The coaxial cable interface 3 and the serial port 4 are connected with an on-site GPS device or an upper computer for communication, data acquisition and uploading. The field devices are primarily GPS devices.

Specifically, the touch screen is a 3.2 inch 4-wire resistance touch screen; the external power supply interface 6 allows the input voltage to be DC5-7V, a high-energy-gathering lithium battery 8 with the capacity of 2000mAH is arranged inside, the continuous work of the equipment is ensured for more than 72 hours under the full-power condition, and meanwhile, the equipment can be charged through the external charging interface 7 for recycling.

Specifically, the processor adopts an ARM Cortex-M3 series STM32F103ZET6 chip, 72M main frequency, LQFP144 package, on-chip FLASH capacity, which is released by the Italian Semiconductor (ST) company: 512K, on-chip SRAM capacity: 64K. Support to expand 256K off-chip SRAM; and JTAG emulator and serial port downloading are supported.

As shown in fig. 3, the charging circuit 11 employs the zener diode WD1 to limit the charging voltage, and during charging, the operation indicator lamp is used as a charging indicator lamp, flashing once every 1 second, and the power indicator lamp is used as a full-charging indicator lamp, and after charging is completed, the power indicator lamp is turned on. The specific circuit relationship includes: an external charging power supply VDD input by the charging interface 7 is grounded through a capacitor C1, the external charging power supply VDD is connected with the base electrode of a triode VT1 through a resistor R1, the base electrode of the triode VT1 is connected with the emitting electrode of a triode VT1 through a resistor R2, the base electrode of the triode VT1 is grounded through a voltage stabilizing diode WD1, the emitting electrode of the triode VT1 is connected with a resistor R4 through a light emitting diode D2 and then grounded, the collector electrode of the triode VT1 is connected with one end of a light emitting diode D1 connected with a resistor R4 through a resistor R3, a lead-out conductor of the collector electrode of the triode VT1 serves as an output end of the charging circuit.

As shown in fig. 4, the power supply circuit 10 includes: when the external power supply interface 6(VUSB) is supplied by USB, the MOS tube is not conducted, and VCC is equal to VUSB minus the voltage reduction of the diode D1; when the VUSB is disconnected, the MOS tube is connected and is powered by a battery output (VBAT), and the two power supply modes are automatically switched. The connection relation includes: the external power supply interface 6 is connected with the output end VCC after passing through the diode D1, the external power supply interface 6 is grounded through the resistor R1, the external power supply interface 6 is connected with the grid electrode of the MOSEFT transistor Q1, the source electrode of the MOSEFT transistor Q1 is connected with VBAT (the output end of the built-in lithium battery 8), and the drain electrode of the MOSEFT transistor Q1 is connected with the output end VCC.

As shown in fig. 5, the VBAT pin of the processor is connected to the output terminal of the built-in lithium battery 8, and after the external power interface 6 is powered off, the clock can continue to run; an input pin and an output pin of an OSC of the processor are connected with an 8M crystal oscillator, two ends of the 8M crystal oscillator are also connected with a resistor R3(10M) in parallel, and two ends of the 8M crystal oscillator are also grounded through a capacitor C25(I5P) and a capacitor C26(I5P) respectively.

The PA2 and PA9 of the processor are respectively marked with USART1-TX and USART2-TX, and the pins PA3 and PA10 are respectively marked with USART1-RX and USART 2-RX. After passing through a serial port chip U2(MAX232 chip), pins T1-TX, T1-RX and GND form an RS232 interface of a serial port COM1, and pins T2-TX, T2-RX and GND form an RS232 interface of a serial port COM 2; a capacitor C9(0.1uf) is also connected in series between the C1+ pin and the C1-pin of the serial chip U2; a capacitor C12(0.1uf) is also connected in series between the C2+ pin and the C2-pin of the serial chip U2; a Vcc pin of the serial port chip U2 is used as a power port to be connected with a direct-current power supply and is grounded through a capacitor C8(0.1 uf); a V + pin of the serial port chip U2 is connected with a direct-current power supply through a capacitor C10(0.1 uf); the V-pin of the serial port chip U2 is grounded through a capacitor C18(0.1 uf); as shown with reference to fig. 6.

After pins PA10, PA11 and PC10 of the processor pass through a serial port chip U6(MAX485 chip), T4-TX-and T4-TX + are output to form an RS485 interface of a serial port COM 3. After pins PD2, PD3 and PC12 of the processor pass through a serial port chip U7(MAX485 chip), T5-TX-and T5-TX + are output to form an RS485 interface of a serial port COM 4; as shown with reference to fig. 7.

The utility model discloses a work flow does:

connecting the fast-plugging coaxial cable interface 3 with a device needing to share data, and outputting TTL pulses to a receiving device; the coaxial cable is adopted, so that the anti-interference capability can be improved, and the false triggering can be avoided. As most of the equipment of the scientific investigation ship is reserved with the coaxial cable interface, the design of the fast-plugging coaxial cable interface 3 of the navigation communication controller can be conveniently and quickly connected with various equipment of the scientific investigation ship.

The user selects and sets the serial port number (COM1-COM4, which is selected as output and can not be used as input) of the input serial port through the touch screen, and the configuration parameters (baud rate, data bit, check bit and stop bit) of the serial port.

After the configuration is completed, the corresponding serial ports are connected with the corresponding field GPS equipment and the upper computer receiving equipment, the start button of the touch screen is clicked, the collection of the received data is started, the received data is forwarded to the serial ports of the set upper computer receiving equipment, and meanwhile, the touch screen displays the data in real time.

The utility model provides a controller can realize that the sharing analysis of GPS data on different equipment and signal trigger, can select input serial port, output serial port, the baud rate, the data bit, stop bit, check bit etc. that correspond the serial port through the touch-sensitive screen to and show the data of receiving and the data of output. The coaxial cable of inserting soon can be swift various equipment on the connection scientific investigation ship, and the independent lithium cell power supply has got rid of the restraint of outside power supply environment.

Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and other modifications or equivalent replacements made by the technical solutions of the present invention by those of ordinary skill in the art should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should be regarded as the protection scope of the present invention.

Claims

1. The fast-plugging coaxial cable independent power type navigation communication controller is characterized by comprising a processor (1), a touch screen (2), a plurality of coaxial cable interfaces (3), a plurality of serial ports (4), a debugging download interface (5) and a power supply circuit (10), wherein the touch screen, the coaxial cable interfaces, the serial ports, the debugging download interface and the power supply circuit are respectively and electrically connected with the processor, and the power supply circuit (10) is connected with an external power interface (6); the coaxial cable interface (3) and the serial port (4) are connected with field data acquisition equipment or an upper computer for communication.

2. The fast plug-in type coaxial cable independent power type navigation communication controller of claim 1, wherein the serial port (4) adopts an RS232 serial port, and the circuit connection comprises: the PA2 and PA9 pins of the processor (1) are respectively connected with an RS232 serial port chip, and then output pins T1-TX, T1-RX and GND form an RS232 interface circuit of a serial port COM 1; the PA3 and PA10 pins of the processor (1) are respectively connected with the RS232 serial port chip, and then output pins T2-TX, T2-RX and GND form an RS232 interface circuit of the serial port COM 2.

3. The fast plug-in type coaxial cable independent power supply type navigation communication controller of claim 1, wherein the serial port (4) adopts an RS485 serial port, and the circuit connection comprises: after pins PA10, PA11 and PC10 of the processor (1) pass through an RS485 serial port chip U6, an RS485 interface circuit of a serial port COM3 is formed by output pins T4-TX-and T4-TX +; after pins PD2, PD3 and PC12 of the processor (1) pass through the RS485 serial port chip U7, output pins T5-TX-and T5-TX + form an RS485 interface circuit of a serial port COM 4.

4. The fast plug-in coaxial cable independent power type navigation communication controller according to claim 1, wherein the power supply circuit (10) comprises: the external power supply interface (6) is grounded through a resistor R1 and is connected with the output end of the power supply circuit (10) after passing through a diode D1, the external power supply interface (6) is further connected with the grid electrode of a MOSEFT transistor Q1, the source electrode of the MOSEFT transistor Q1 is connected with the output end of the built-in lithium battery (8), and the drain electrode of the MOSEFT transistor Q1 is connected with the output end of the power supply circuit (10).

5. The fast plug-in coaxial cable independent power type navigation communication controller according to claim 1, further comprising a charging circuit (11): an external charging power supply VDD input by the charging interface (7) is grounded through a capacitor C1, the base of a triode VT1 is connected through a resistor R1, the emitter of a triode VT1 is connected through a resistor R2, the base of the triode VT1 is grounded through a voltage stabilizing diode WD1, the emitter of the triode VT1 is grounded after being connected with a resistor R4 through a light emitting diode D2, the collector of the triode VT1 is connected with one end of the light emitting diode D1, which is connected with a resistor R4 through a resistor R3, a collector leading-out wire of the triode VT1 is used as an output end of the charging circuit (11), and the output end is connected with two ends of an internal lithium battery (8) in parallel to charge the lithium.

6. The fast-plug coaxial cable independent power type navigation communication controller according to claim 1, wherein the touch screen (2) is a resistive touch screen, and serial port communication parameters are configured through the resistive touch screen.

7. The fast plug-in coaxial cable independent power type navigation communication controller according to claim 1, wherein the coaxial cable interface (3) is a fast plug-in type and outputs a TTL pulse signal.

8. The fast plug-in coaxial cable independent power type navigation communication controller according to claim 1, wherein the debug download interface (5) is a JTAG debug download interface.

9. The fast plug-in coaxial cable independent power type navigation communication controller according to claim 1, wherein the external power interface (6) collects direct current between 5-7V.

10. The quick-plug type coaxial cable independent power type navigation communication controller according to any one of claims 1 to 9, further comprising a plurality of indicator lights (9) respectively connected with the processor (1), the external power interface (6) and the plurality of serial ports (4) to display the working state.