A self-contained kit system for a depth sounder

Abstract

The present invention discloses a self-contained kit system for a depth sounder, comprising: a power supply circuit, a main control circuit, a storage circuit, a communication circuit, and a download circuit; the power supply circuit divides the external lithium battery input into two circuits: one circuit supplies power to each module in the kit circuit; the other circuit supplies power to the depth sounder equipment and the main control circuit controls the closing and disconnection of the circuit; the main control circuit controls the communication and power-on between the equipment; the storage circuit is responsible for saving the measurement data; the communication circuit performs the conversion between RS232 and TTL levels; and the download circuit provides a debugging interface for the main control circuit. The present invention can ensure that the equipment works periodically and automatically records the measurement data.

Description

Technical Field

[0001] The invention relates to the technical field of integrated circuits, and in particular to a self-contained kit system for a depth sounder. Background Art

[0002] Water depth is an important hydrological element and is often measured using an echo sounder. Existing echo sounders are usually direct-reading devices, which use cables to power and communicate with the host computer. Although direct-reading echo sounders have good real-time data, the supporting system is large and cannot be miniaturized or unmanned. Summary of the invention

[0003] The object of the present invention is to provide a self-contained kit system for a depth sounder to solve the problems in the background technology.

[0004] In order to solve the above technical problems, the present invention provides a self-contained kit system for a depth sounder, comprising: a power supply circuit, a main control circuit, a storage circuit, a communication circuit, and a download circuit;

[0005] The power supply circuit divides the external lithium battery input into two loops: one loop supplies power to each module in the kit circuit; the other loop supplies power to the depth sounder equipment and the main control circuit controls the closing and opening of the loop;

[0006] The main control circuit controls communication and power-on between devices;

[0007] The storage circuit is responsible for storing the measurement data;

[0008] The communication circuit performs conversion between RS232 and TTL levels;

[0009] The download circuit provides a debugging interface for the main control circuit.

[0010] In one embodiment, the power supply circuit includes a linear regulator U1, an electronic switch U3 and a solid-state relay U4, resistors R3, R4, capacitors C1, C2, C4, C5; wherein,

[0011] The model of the linear regulator U1 is SSP7603P33MR, which converts the voltage input by the lithium battery into the 3.3V voltage required for the power supply of the peripheral chip; the GND port of the linear regulator U1 is grounded, the VOUT port is connected to the +3.3V voltage and the first end of the capacitor C1 at the same time, and the VIN port is connected to the first end of the capacitor C2; the second end of the capacitor C1 and the second end of the capacitor C2 are both grounded;

[0012] The model of the electronic switch U3 is MT9700. The VOUT port of the electronic switch U3 is grounded through the capacitor C4, the GND port is grounded, the SET port is grounded through the resistor R3, the VIN port is grounded through the capacitor C5, and the EN port is connected to the control signal;

[0013] The model of the solid-state relay U4 is GAQY211G2S. Pin 1 of the solid-state relay U4 provides resistor R4 to connect the control signal, and pin 2 is grounded.

[0014] In one embodiment, the main control circuit includes a main control chip U2, resistors R1, R2, R5, a diode D1, capacitors C3, C6 and a connector H4; the NRST port of the main control chip U2 is simultaneously connected to the second end of the resistor R1 and the first end of the capacitor C3, the first end of the resistor R1 is connected to a +3.3V voltage, and the second end of the capacitor C3 is grounded; the VDDA / VREF+ port of the main control chip U2 is simultaneously connected to the second end of the resistor R2 and the first end of the capacitor C6, the first end of the resistor R2 is grounded, and the second end of the capacitor C6 and the VSS port of the main control chip U2 are both grounded; the second port of the connector H4 is simultaneously connected to the PC6 port of the main control chip U2 and the positive electrode of the diode D1, the first port is simultaneously connected to the negative electrode of the diode D1 and the first end of the resistor R5, and the second end of the resistor R5 is grounded.

[0015] In one embodiment, the communication circuit includes a transceiver chip U6, capacitors C7, C8, C10, C11, and C12; the communication between the kit circuit and the host computer and the depth sounder adopts the RS232 standard, and level conversion is performed when communicating with the main control chip; the model of the transceiver chip U6 is MAX3232ESE+, which can simultaneously convert between two RS232 and TTL levels; the C1+ port of the transceiver chip U6 is connected to the C1- port through capacitor C7, the V+ port is grounded through capacitor C10, the C2+ port is connected to the C2- port through capacitor C11, the V- port is grounded through capacitor C12, and the VCC port is grounded through capacitor C8.

[0016] In one embodiment, the storage circuit includes a storage chip U5 and a capacitor C9; the RESET# port and the VCC port of the storage chip U5 are both grounded through the capacitor C9; the model of the storage chip U5 is W25Q256JVFIQ, the current consumption in the standby state is less than 1uA, and it can store 32MB of data to meet the needs of long-term use.

[0017] In one embodiment, the download circuit includes resistors R6, R7 and connector H5; the first port of connector H5 is connected to a +3.3V voltage, the second port is connected to a +3.3V voltage through resistor R6, the third port is grounded through resistor R7, and the fourth port is grounded; the download circuit uses a SWD interface, and only 4 wires are needed to complete the burning and debugging of the program.

[0018] The present invention provides a self-contained kit system for a depth sounder, which can ensure that the device works periodically and automatically records measurement data. The device can work automatically after being deployed, and when the inspectors conduct regular inspections, they can read the measurement data through a laptop or other host computer software. The inspectors only need to replace or charge the batteries to ensure that the device can work normally in the next inspection cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 The present invention provides a system block diagram of a self-contained kit system for a depth sounder.

[0020] Figure 2 It is a schematic diagram of the power supply circuit principle provided by the present invention.

[0021] Figure 3 It is a schematic diagram of the main control circuit principle provided by the present invention.

[0022] Figure 4 It is a schematic diagram of the communication circuit principle provided by the present invention.

[0023] Figure 5 It is a schematic diagram of the storage circuit principle provided by the present invention.

[0024] Figure 6 It is a schematic diagram of the download circuit principle provided by the present invention. DETAILED DESCRIPTION

[0025] The following is a further detailed description of a self-contained kit system for a depth sounder proposed by the present invention in conjunction with the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer according to the following description. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0026] The present invention provides a self-contained kit system for a depth sounder, the system block diagram of which is as follows: Figure 1 The whole circuit mainly consists of five parts: power supply circuit, main control circuit, storage circuit, communication circuit and download circuit.

[0027] The power supply circuit divides the lithium battery input into two loops: one loop supplies power to each module in the kit circuit; the other loop supplies power to the depth sounder equipment and the main control circuit of the kit circuit controls the closing and opening of the loop; the main control circuit controls the communication and power-on between the equipment; the storage circuit is responsible for saving the measurement data; the communication circuit converts between RS232 and TTL levels; and the download circuit provides a debugging interface for the main control circuit.

[0028] The structure of the power supply circuit is as follows Figure 2 As shown, it includes a linear regulator U1, an electronic switch U3 and a solid-state relay U4, resistors R3 and R4, and capacitors C1, C2, C4 and C5;

[0029] The linear regulator U1 is SSP7603P33MR, a low-power linear regulator that can convert the voltage input from the lithium battery into the 3.3V voltage required for powering the peripheral chip. The GND port of the linear regulator U1 is grounded, the VOUT port is connected to the +3.3V voltage and the first end of the capacitor C1, and the VIN port is connected to the first end of the capacitor C2; the second end of the capacitor C1 and the second end of the capacitor C2 are both grounded.

[0030] The model of the electronic switch U3 is MT9700, which is a low-power electronic switch. The VOUT port (pin 1) of the electronic switch U3 is grounded through capacitor C4, the GND port (pin 2) is grounded, the SET port (pin 3) is grounded through resistor R3, the VIN port (pin 5) is grounded through capacitor C5, and the EN port (pin 4) is connected to the control signal. When the control signal connected to pin 4 is high, the voltage input to pin 5 will be output from pin 1. This chip is used to control the power supply of peripheral devices. When the depth sounder is in standby mode, the power supply of all peripheral devices is disconnected to minimize the standby power consumption.

[0031] The model of solid-state relay U4 is GAQY211G2S, and the load voltage is as high as 40V, which is far higher than the supply voltage of lithium battery. Pin 1 of solid-state relay U4 provides resistor R4 to connect the control signal, and pin 2 is grounded. The control side and the load side are isolated by photoelectric coupling inside the relay. When the control signal connected to pin 1 is high level, the light-emitting diode inside the relay is lit, and pins 3 and 4 are connected. At this time, the power supply circuit of the depth sounder is closed, and the depth sounder is powered on.

[0032] The structure of the main control circuit is as follows Figure 3 As shown, it includes a main control chip U2, resistors R1, R2, R5, a diode D1, capacitors C3, C6 and a connector H4; the NRST port of the main control chip U2 is simultaneously connected to the second end of the resistor R1 and the first end of the capacitor C3, the first end of the resistor R1 is connected to a +3.3V voltage, and the second end of the capacitor C3 is grounded; the VDDA / VREF+ port of the main control chip U2 is simultaneously connected to the second end of the resistor R2 and the first end of the capacitor C6, the first end of the resistor R2 is grounded, and the second end of the capacitor C6 and the VSS port of the main control chip U2 are both grounded; the second port of the connector H4 is simultaneously connected to the PC6 port of the main control chip U2 and the positive electrode of the diode D1, the first port is simultaneously connected to the negative electrode of the diode D1 and the first end of the resistor R5, and the second end of the resistor R5 is grounded.

[0033] The model of the main control chip U2 is STM32F103RCT6. The chip consumes only 2uA of circuit in standby mode, meeting the low power consumption requirements. It enables two serial ports, one SPI bus, a set of debug ports and three GPIOs.

[0034] The two serial ports are responsible for the communication between the kit circuit and the depth sounder, and between the kit circuit and the host computer respectively; the SPI bus is responsible for the communication between the main control chip and the storage chip; the debug port is connected to the download circuit, providing an interface for circuit debugging and program downloading; the PC3 port controls the chip select signal of the storage chip, the PC6 port controls the on and off of the indicator light, and the PB8 port controls the power supply of peripheral devices.

[0035] The structure of the communication circuit is as follows Figure 4 As shown, it includes transceiver chip U6, capacitors C7, C8, C10, C11, and C12; the communication between the kit circuit and the host computer and the depth sounder adopts the RS232 standard, and level conversion is required when communicating with the main control chip. The model of transceiver chip U6 is MAX3232ESE+, which is a low-power 2-way RS232 transceiver chip that can simultaneously convert between two RS232 and TTL levels. The C1+ port of transceiver chip U6 is connected to the C1- port through capacitor C7, the V+ port is grounded through capacitor C10, the C2+ port is connected to the C2- port through capacitor C11, the V- port is grounded through capacitor C12, and the VCC port is grounded through capacitor C8.

[0036] The structure of the storage circuit is as follows Figure 5 As shown, it includes a memory chip U5 and a capacitor C9; the RESET# port and the VCC port of the memory chip U5 are both grounded through the capacitor C9. The model of the memory chip U5 is W25Q256JVFIQ, the current consumption in the standby state is less than 1uA, and it can store 32MB of data, which can meet the needs of long-term use.

[0037] The structure of the download circuit is as follows Figure 6 As shown, it includes resistors R6, R7 and connector H5; the first port of connector H5 is connected to +3.3V voltage, the second port is connected to +3.3V voltage through resistor R6, the third port is grounded through resistor R7, and the fourth port is grounded. The download circuit uses SWD interface, and SWD only needs 4 wires to complete program burning and debugging. According to the requirements of the master chip manual, the SWD pin is pulled up and the CLK pin is pulled down.

[0038] The above description is only a description of the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention. Any changes or modifications made by a person skilled in the art in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A self-contained kit system for a depth sounder, characterized in that: include: Power supply circuit, main control circuit, storage circuit, communication circuit, download circuit; The power supply circuit divides the external lithium battery input into two loops: one loop supplies power to each module in the kit circuit; the other loop supplies power to the depth sounder equipment and the main control circuit controls the closing and opening of the loop; The main control circuit controls communication and power-on between devices; The storage circuit is responsible for storing the measurement data; The communication circuit performs conversion between RS232 and TTL levels; The download circuit provides a debugging interface for the main control circuit.

2. The depth sounder self-contained kit system according to claim 1, characterized in that: The power supply circuit includes a linear regulator U1, an electronic switch U3 and a solid-state relay U4, resistors R3, R4, capacitors C1, C2, C4, C5; wherein, The model of the linear regulator U1 is SSP7603P33MR, which converts the voltage input by the lithium battery into the 3.3V voltage required for the power supply of the peripheral chip; the GND port of the linear regulator U1 is grounded, the VOUT port is connected to the +3.3V voltage and the first end of the capacitor C1 at the same time, and the VIN port is connected to the first end of the capacitor C2; the second end of the capacitor C1 and the second end of the capacitor C2 are both grounded; The model of the electronic switch U3 is MT9700. The VOUT port of the electronic switch U3 is grounded through the capacitor C4, the GND port is grounded, the SET port is grounded through the resistor R3, the VIN port is grounded through the capacitor C5, and the EN port is connected to the control signal; The model of the solid-state relay U4 is GAQY211G2S. Pin 1 of the solid-state relay U4 provides resistor R4 to connect the control signal, and pin 2 is grounded.

3. The depth sounder self-contained kit system according to claim 2, characterized in that: The main control circuit includes a main control chip U2, resistors R1, R2, R5, a diode D1, capacitors C3, C6 and a connector H4; the NRST port of the main control chip U2 is simultaneously connected to the second end of the resistor R1 and the first end of the capacitor C3, the first end of the resistor R1 is connected to a +3.3V voltage, and the second end of the capacitor C3 is grounded; the VDDA / VREF+ port of the main control chip U2 is simultaneously connected to the second end of the resistor R2 and the first end of the capacitor C6, the first end of the resistor R2 is grounded, and the second end of the capacitor C6 and the VSS port of the main control chip U2 are both grounded; the second port of the connector H4 is simultaneously connected to the PC6 port of the main control chip U2 and the positive electrode of the diode D1, the first port is simultaneously connected to the negative electrode of the diode D1 and the first end of the resistor R5, and the second end of the resistor R5 is grounded.

4. The depth sounder self-contained kit system according to claim 1, characterized in that: The communication circuit includes a transceiver chip U6, capacitors C7, C8, C10, C11, and C12; the communication between the kit circuit and the host computer and the depth sounder all adopts the RS232 standard, and level conversion is performed when communicating with the main control chip; the model of the transceiver chip U6 is MAX3232ESE+, which can simultaneously convert between two RS232 and TTL levels; the C1+ port of the transceiver chip U6 is connected to the C1- port through capacitor C7, the V+ port is grounded through capacitor C10, the C2+ port is connected to the C2- port through capacitor C11, the V- port is grounded through capacitor C12, and the VCC port is grounded through capacitor C8.

5. The depth sounder self-contained kit system according to claim 1, characterized in that: The storage circuit includes a storage chip U5 and a capacitor C9; the RESET# port and the VCC port of the storage chip U5 are both grounded through the capacitor C9; the model of the storage chip U5 is W25Q256JVFIQ, the current consumption in the standby state is less than 1uA, and it can store 32MB of data to meet the needs of long-term use.

6. The depth sounder self-contained kit system according to claim 1, characterized in that: The download circuit includes resistors R6, R7 and connector H5; the first port of connector H5 is connected to +3.3V voltage, the second port is connected to +3.3V voltage through resistor R6, the third port is grounded through resistor R7, and the fourth port is grounded; the download circuit adopts SWD interface, and only 4 wires are needed to complete the burning and debugging of the program.

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