A multifunctional single-soldier solar backpack device

Abstract

The present invention discloses a multifunctional single-soldier solar backpack device, which relates to the technical field of military and police equipment, and solves the problems of high cost, poor portability, troublesome use, and single function of traditional battery supply solutions. The key points of its technical solution are: including a power module, a water-impact monitoring module, an air pressure measurement module, an inflation control module, an ignition module, and a main control module; the signal output end of the water-impact monitoring module and the air pressure measurement module is connected to the signal input end of the main control module, and the signal output end of the main control module is connected to the signal input end of the inflation control module. The present invention collects and stores sunlight in the wild, converts it into electrical energy, and can supplement electrical energy for other electronic devices; water-impact monitoring can measure whether the life-saving airbag encounters water, and air pressure measurement and control can measure the air pressure value in the life-saving airbag, and the life-saving airbag realizes automatic control, and the ignition function provides fire for soldiers to heat and cook in the wild, and it is convenient and fast to get fire, and has strong stability.

Description

Technical Field

[0001] The present invention relates to the technical field of military and police equipment, and more specifically, to a multifunctional single-soldier solar backpack device. Background Art

[0002] As an energy-saving and environmentally friendly green energy, solar energy has a very wide range of applications in the military field. At present, military and police backpacks play an important role in modern warfare and military training in the army. They are mainly used to carry weapons and equipment, electronic products, daily necessities, and field survival supplies. With the continuous development of science and technology, large-scale wars will not break out easily, but local wars and frictions continue to occur, so the requirements of modern warfare for individual combat capabilities continue to increase. However, the existing military and police backpacks that are only used for storing supplies are difficult to meet the needs of the complexity of modern individual combat environments and high-intensity military training standards. Therefore, how to study and design a multifunctional individual solar backpack device is a problem that we urgently need to solve. Summary of the invention

[0003] In order to solve the problems of high cost, poor portability, inconvenient use and single function of traditional battery supply solutions, the purpose of the present invention is to provide a multifunctional individual solar backpack device.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions: a multifunctional single-soldier solar backpack device, comprising a power module, a water contact monitoring module, an air pressure measurement module, an inflation control module, an ignition module and a main control module; the signal output ends of the water contact monitoring module and the air pressure measurement module are connected to the signal input end of the main control module, and the signal output end of the main control module is connected to the signal input end of the inflation control module;

[0005] The power module is used to convert the collected solar energy into electrical energy for storage and provide electrical energy for each module and external equipment;

[0006] The water contact monitoring module is used to monitor and determine whether the life-saving airbag equipped on the backpack body encounters water, and send a water contact monitoring signal after encountering water;

[0007] The air pressure measurement module is used to monitor the air pressure value in the life-saving airbag in real time and send out an air pressure measurement signal when the air pressure value reaches a preset threshold;

[0008] A main control module, used to generate a start control command according to a water contact monitoring signal, and to generate a shut down control command according to an air pressure measurement signal;

[0009] An inflation control module, used to open the air pump equipped on the backpack body to inflate the life-saving airbag according to a start control command, and to shut down the inflation state of the air pump according to a shut-down control command;

[0010] The ignition module is used to generate instantaneous high voltage to release an arc to provide a fire source.

[0011] Preferably, the power module comprises a solar panel, a battery, and a power supply circuit which are electrically connected in sequence, and the solar panel is mounted on the back of the backpack body;

[0012] The power supply circuit includes a LM7812 transformer chip, a LM7809 transformer chip, a LM7805 transformer chip, an indicator light D5 and an indicator light D5;

[0013] The solar panel outputs 20V DC voltage, which is input into the LM7812 transformer chip through the P3 terminal and then converted into 12V DC voltage output to charge the battery; when the solar panel is charging the battery, the indicator light D5 lights up;

[0014] The LM7809 transformer chip and the LM1805 transformer chip convert the 12V DC voltage output by the battery into a 5V DC voltage output to provide power for external devices; when the load is connected to the 5V output circuit, the indicator light D6 lights up.

[0015] Preferably, the water contact monitoring module includes a P1 terminal and a resistor R2, and pins 1 and 2 of the P1 terminal are respectively connected to an electrical lead; pin 1 of the P1 terminal is connected to a 5V DC voltage terminal through resistor R2, and is connected to pin P3.7 of the main control module; and whether the life-saving airbag encounters water is determined by monitoring the output voltage of pin P3.7.

[0016] Preferably, the air pressure measurement module includes a D3B pressure sensor and an ADC0832 analog-to-digital conversion chip, and the D3B pressure sensor and the ADC0832 analog-to-digital conversion chip are both connected to a 5V DC voltage terminal;

[0017] The IN1 channel of the analog-to-digital conversion chip receives the air pressure measurement signal output by the D3B pressure sensor;

[0018] The P3.4 pin of the main control module is connected to the SCLK pin of the analog-to-digital conversion chip, which is used to input the clock signal for communication between the two devices into the analog-to-digital conversion chip;

[0019] The P3.6 pin of the main control module is connected to the CS pin of the analog-to-digital conversion chip to send a conversion start signal to the analog-to-digital conversion chip;

[0020] The P3.5 pin of the main control module is connected to the DI / DO pin of the analog-to-digital conversion chip to transmit the conversion command to the analog-to-digital conversion chip and calculate the air pressure value in the life-saving airbag by reading the data returned by the P3.5 pin.

[0021] Preferably, the inflation control module includes a relay K2, a transistor Q3, a green indicator light D7, a red indicator light D8 and a resistor;

[0022] The P2.1 pin of the main control module is connected to the REPLY pin, and the REPLY pin is connected to the base of the transistor Q3 through the resistor R9; the emitter of the transistor Q3 is grounded, and the collector is connected to one end of the relay K2, and the other end of the relay K2 is connected to the 5V DC voltage terminal;

[0023] Relay K2 is connected in parallel with diode D3, and the output end of diode D3 is connected to the air pump through a red indicator light D8 and a resistor R11 connected in series;

[0024] The normally open contact of relay K2 is connected in series with the green indicator light D7 and the resistor R10, one end of which is connected to the 5V DC voltage terminal, and the other end is connected to the air pump.

[0025] Preferably, the main control module includes a main control chip, a reset circuit and a crystal oscillator circuit;

[0026] The reset circuit includes a button S2, a capacitor C1, and a resistor R1; after the button S2 is connected in parallel with the capacitor C1, one end is connected to the 5V DC voltage terminal, and the other end is connected to the RST pin of the main control chip and grounded through the resistor R1;

[0027] The crystal oscillator circuit includes capacitor C2, capacitor C3, and passive crystal oscillator X1; the two output ends of the passive crystal oscillator X1 are respectively connected to the XTAL1 pin and the XTAL2 pin of the main control chip, the capacitor C2 and the capacitor C3 are connected in series and then connected in parallel with the passive crystal oscillator X1, and the connection point between the capacitor C2 and the capacitor C3 is grounded.

[0028] Preferably, the ignition module includes a switch tube Q1, a button S1, a high-voltage package T1, a rectifier diode D1, a rectifier diode D2, a filter capacitor C7, a voltage stabilizing capacitor C5 and a voltage stabilizing capacitor C6;

[0029] Button S1 controls the output of the high-voltage package T1. When button S1 is turned on, the switch tube Q1 is turned on.

[0030] Capacitor C5 ensures that when button S1 is turned on, a constant 5V DC voltage is input to the primary coil;

[0031] Rectifier diodes D1 and D2 are connected in series to convert AC voltage into rectified voltage;

[0032] The rectified voltage is stabilized by the voltage stabilizing capacitor C6 and outputs a pulsating DC high voltage between A and B of the secondary side coil;

[0033] The filter capacitor C7 filters out the high-frequency interference signal generated when the secondary side coil is working.

[0034] Preferably, the main control module is connected to a button measurement module, which includes a button S3, a button S4, a button S5, and a button S6, one end of the button S3, the button S4, the button S5, and the button S6 are respectively connected to the P1.0 pin, the P1.1 pin, the P1.2 pin, and the P1.3 pin of the main control module, and the other end is grounded;

[0035] Button S3 is used to receive a setting command input by a user;

[0036] Button S4 is used to receive parameter addition input command;

[0037] Key S5, for receiving a parameter reduction input command;

[0038] Key S6 is used to receive a confirmation input command.

[0039] Preferably, the main control module is connected to a prompt module, which includes an indicator light D2, a buzzer LS, a transistor Q2 and a resistor R3;

[0040] The base of transistor Q2 is connected to the P2.0 pin of the main control module through resistor R3, and the collector is connected to a 5V DC voltage;

[0041] One end of the indicator light D2 is connected to the base of the transistor Q2, and the other end is connected to the buzzer LS and grounded;

[0042] The other end of the buzzer LS is connected to the emitter of the transistor Q2.

[0043] Preferably, the main control module is connected to a display module for displaying the water contact status of the life-saving airbag and the air pressure value in the life-saving airbag.

[0044] Compared with the prior art, the present invention has the following beneficial effects:

[0045] 1. The present invention collects and stores sunlight in the wild, converts it into electrical energy, and can supplement electrical energy for other electronic equipment. It provides a highly reliable, practical, and easy-to-promote electrical energy supply platform for the military's small-scale equipment in the field, and provides basic conditions for improving the efficiency of field training operations.

[0046] 2. Water contact monitoring can measure whether the life-saving airbag encounters water, and the measurement result is converted into a digital signal for display; air pressure measurement and control can measure the air pressure value in the life-saving airbag. If the life-saving airbag contacts water, the system can turn on the air pump to inflate the airbag. When the air pressure value in the airbag is the same as the preset threshold, the inflation operation ends automatically, and the life-saving airbag realizes automatic control, providing basic swimming and self-rescue equipment for field training, which is easy to carry;

[0047] 3. The fire-making function provides fire for soldiers to keep warm and cook in the wild. It is convenient, quick and stable to make fire. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0049] Figure 1 is an overall functional block diagram of an embodiment of the present invention;

[0050] Figure 2 is a working principle diagram of a power supply circuit in an embodiment of the present invention;

[0051] Figure 3 is a working principle diagram of a water contact monitoring module in an embodiment of the present invention;

[0052] Figure 4 is a working principle diagram of the air pressure measurement module in an embodiment of the present invention;

[0053] Figure 5 is a working principle diagram of the inflation control module in an embodiment of the present invention;

[0054] Figure 6 is a working principle diagram of the main control module in an embodiment of the present invention;

[0055] Figure 7 is a working principle diagram of an ignition module in an embodiment of the present invention;

[0056] Figure 8 is a working principle diagram of a key measurement module in an embodiment of the present invention;

[0057] Fig. 9 is a working principle diagram of the prompt module in an embodiment of the present invention;

[0058] Fig.10 is a working principle diagram of a display module in an embodiment of the present invention;

[0059] Fig.11 It is an overall workflow diagram in an embodiment of the present invention. DETAILED DESCRIPTION

[0060] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the following is a summary of the present invention with reference to the embodiments and the accompanying drawings. Figure 1-11 , the present invention is further described in detail. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0061] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it can be directly on the other component or indirectly on the other component. When a component is referred to as being "connected to" another component, it can be directly or indirectly connected to the other component.

[0062] It should be understood that the orientation or position relationship indicated by terms such as "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0063] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0064] Embodiment: A multifunctional single-soldier solar backpack device, such as Figure 1 and Fig.11 As shown, it includes a power module, a water-touching monitoring module, an air pressure measuring module, an inflation control module, an ignition module and a main control module; the signal output ends of the water-touching monitoring module and the air pressure measuring module are connected to the signal input end of the main control module, and the signal output end of the main control module is connected to the signal input end of the inflation control module. The power module converts the collected solar energy into electrical energy for storage, and provides electrical energy for the operation of each module and external equipment. The water-touching monitoring module monitors and determines whether the life-saving airbag equipped with the backpack body encounters water, and sends a water-touching monitoring signal after encountering water. The air pressure measuring module monitors the air pressure value in the life-saving airbag in real time, and sends an air pressure measurement signal after the air pressure value reaches a preset threshold. The main control module generates a start control command according to the water-touching monitoring signal, and generates a shutdown control command according to the air pressure measurement signal. The inflation control module turns on the air pump equipped with the backpack body to inflate the life-saving airbag according to the start control command, and turns off the inflation state of the air pump according to the shutdown control command. The ignition module generates instantaneous high voltage to release an arc to provide a fire.

[0065] like Figure 1 and Figure 2As shown, the power module includes a solar panel, a battery, and a power supply circuit which are electrically connected in sequence, and the solar panel is installed on the back of the backpack body. Among them, the power supply circuit includes an LM7812 transformer chip, an LM7809 transformer chip, an LM7805 transformer chip, an indicator light D5, and an indicator light D5. The solar panel outputs a 20V DC voltage, which is input into the LM7812 transformer chip through the P3 terminal and then converted into a 12V DC voltage output to charge the battery; when the solar panel charges the battery, the indicator light D5 lights up. The LM7809 transformer chip and the LM1805 transformer chip convert the 12V DC voltage output by the battery into a 5V DC voltage output to provide power for the external device; when the load is connected to the 5V output circuit, the indicator light D6 lights up.

[0066] Two terminals BATin and BATout are welded on the battery. The BATin terminal is used to receive the output voltage of the battery panel to replenish the battery; the BATout terminal is used to output 12V voltage to provide power for the control board. The OUT5V terminal is used to output 5V DC voltage, and the Fire terminal is used to provide 5V DC voltage for the ignition module. The function of switch K1 is to manage the 5V DC voltage input to the circuit. When switch K1 is turned on, the 5V DC voltage will normally provide power to the circuit board.

[0067] like Figure 1 and Figure 3 As shown, the water contact monitoring module includes a P1 terminal and a resistor R2. The 1st and 2nd pins of the P1 terminal are connected to an electrical lead. The 1st pin of the P1 terminal is connected to the 5V DC voltage terminal through the resistor R2, and is connected to the P3.7 pin of the main control chip in the main control module; the output voltage of the P3.7 pin is monitored to determine whether the life-saving airbag encounters water.

[0068] like Figure 1 and Figure 4 As shown, the air pressure measurement module includes a D3B pressure sensor and an ADC0832 analog-to-digital conversion chip, and the D3B pressure sensor and the ADC0832 analog-to-digital conversion chip are both connected to the 5V DC voltage terminal. The IN1 channel of the analog-to-digital conversion chip receives the air pressure measurement signal output by the D3B pressure sensor. The P3.4 pin of the main control chip is connected to the SCLK pin of the analog-to-digital conversion chip, which is used to input the clock signal for communication between the two devices into the analog-to-digital conversion chip. The P3.6 pin of the main control chip is connected to the CS pin of the analog-to-digital conversion chip, which is used to send the conversion start signal to the analog-to-digital conversion chip. The P3.5 pin of the main control chip is connected to the DI / DO pin of the analog-to-digital conversion chip, which is used to transmit the conversion command to the analog-to-digital conversion chip, and calculate the air pressure value in the life-saving airbag by reading the data returned by the P3.5 pin.

[0069] D3B is a high-performance digital air pressure sensor with an operating voltage of 5V. The air pressure monitoring range is 0-255kpa, and the monitoring results are output as a voltage signal of 0-5V. The sensor has a total of 3 external leads, of which the red lead is the positive power supply access line, the green pin is the negative power supply access line, and the gray lead is the measurement result output line. Compared with the two sensors, the accuracy of MPX4115 and D3B is not much different, but the price of MPX4115 is higher than that of D3B, and the measurement requires complex calculations before the true measurement results can be calculated, which affects the real-time nature of the monitoring results to a certain extent. Therefore, from the perspective of reducing the difficulty of software development and design costs, the present invention selects the D3B pressure sensor to realize the measurement of airbag pressure.

[0070] like Figure 1 and Figure 5 As shown, the inflation control module includes a relay K2, a transistor Q3, a green indicator light D7, a red indicator light D8 and a resistor. The P2.1 pin of the main control module is connected to the REPLY pin, and the REPLY pin is connected to the base of the transistor Q3 through the resistor R9; the emitter of the transistor Q3 is grounded, and the collector is connected to one end of the relay K2, and the other end of the relay K2 is connected to the 5V DC voltage terminal. Relay K2 is connected in parallel with a diode D3, and the output end of the diode D3 is connected to the air pump through the red indicator light D8 and the resistor R11 connected in series. After the normally open contact of relay K2 is connected in series with the green indicator light D7 and the resistor R10, one end is connected to the 5V DC voltage terminal, and the other end is connected to the air pump.

[0071] In the inflation control circuit, the green indicator light D7 is used to indicate the working status of the air pump, and the red indicator light D8 is the power-on indicator light of the relay K2. The P4 terminal is the power connection pin of the air pump, and the 1N4148 diode D3 plays the role of freewheeling, which is used to eliminate the induced voltage generated when the relay is turned on / off.

[0072] When the inflation control circuit is working, the power supply circuit of the indicator light D8 is connected, the indicator light D8 starts to work, and outputs the power supply prompt information. When the life-saving airbag touches water, the main control chip will output a 5V DC voltage through the P2.1 pin. At this time, the emitter and collector of the transistor Q3 are turned on, and the normally open pin of the relay K1 and the common terminal are connected, so that the power supply circuit of the indicator light D7 is connected, and the air pump working prompt information is output. At this time, the positive pin of the air pump inputs a 5V DC voltage, and the air pump starts to work and inflate the life-saving airbag.

[0073] When the life-saving airbag does not touch water or the air pressure in the life-saving airbag reaches the set value, the main control chip will output 0V voltage through the P2.1 pin. At this time, the emitter and collector of the transistor are cut off, and the normally open pin of the relay is disconnected from the common terminal, so that the power supply circuit of the indicator light D7 is disconnected, and the output air pump stops working prompt information. At this time, the positive pin of the air pump is disconnected from the 5V DC voltage, the air pump stops working, and no longer inflates the life-saving airbag.

[0074] like Figure 1 and Figure 6 As shown, the main control module includes an STC89C52RC main control chip, a reset circuit and a crystal oscillator circuit. The reset circuit includes a button S2, a capacitor C1, and a resistor R1; after the button S2 is connected in parallel with the capacitor C1, one end is connected to the 5V DC voltage terminal, and the other end is connected to the RST pin of the main control chip and grounded through the resistor R1. The crystal oscillator circuit includes capacitor C2, capacitor C3, and passive crystal oscillator X1; the two output ends of the passive crystal oscillator X1 are respectively connected to the XTAL1 pin and the XTAL2 pin of the main control chip, and the capacitors C2 and C3 are connected in series and then connected in parallel with the passive crystal oscillator X1, and the connection point between the capacitors C2 and C3 is grounded.

[0075] In the reset circuit, the function of button S2 is to receive the manual reset command. When there is a manual reset command input, the two ends of button S2 will be in the connected state, so that the RST pin is directly connected to the 5V DC voltage. When this connection state is maintained for more than 10us, the main control chip will automatically perform the reset operation. Capacitor C1 and resistor R1 realize the automatic reset function. In the automatic reset circuit, the functions of capacitor C1 and button S2 are similar. When the voltage difference between the two ends of capacitor C1 is 0-2.7V (equivalent to the button being connected), the main control chip performs the reset operation; when the voltage difference between the two ends of capacitor C1 is greater than 2.7V (equivalent to the button being disconnected), the selection of capacitor C1 and resistor R1 values ​​determines the completion time of the automatic reset. When designing the circuit, the capacitor C1 value is usually 10uf, and the resistor R1 value is usually 10K.

[0076] In the crystal oscillator circuit, the function of the passive crystal oscillator X1 is to output an oscillation signal. After the signal is input into the clock circuit inside the main control chip, it is processed by the circuit frequency division to obtain the working clock of each unit in the main control chip. The function of capacitors C2 and C3 in the circuit is to fine-tune the output frequency of the crystal oscillator and filter out the high-frequency interference signal generated when the circuit is working. Normally, the value of the passive crystal oscillator X1 is 11.0592M, and the values ​​of capacitors C2 and C3 are 30pf.

[0077] Compared with the performance of the two chips, the STM32 chip is superior to the STC89C52RC chip in terms of control capability and data processing capability. However, the STM32 chip contains more basic registers, and the software design is relatively complicated. In addition, the STM32 is a flat chip package. If the corresponding PCB board is not designed to lead out the pins, the chip will not work properly. Therefore, considering the two aspects of reducing development difficulty and design cost, this design chooses the STC89C52RC chip as the control core of the solar backpack.

[0078] like Figure 1 and Figure 7 As shown, the ignition module includes a switch tube Q1, a button S1, a high-voltage coil T1, a rectifier diode D1, a rectifier diode D2, a filter capacitor C7, a voltage-stabilizing capacitor C5 and a voltage-stabilizing capacitor C6. The button S1 controls the output of the high-voltage coil T1, and the switch tube Q1 is turned on when the button S1 is turned on. The C5 capacitor ensures that when the button S1 is turned on, a constant 5V DC voltage is input to the primary side coil. The rectifier diode D1 and the rectifier diode D2 are connected in series to convert the AC voltage into a rectified voltage. After the rectifier voltage is stabilized by the voltage-stabilizing capacitor C6, a pulsating DC high voltage is output between A and B of the secondary side coil. The filter capacitor C7 filters out the high-frequency interference signal generated when the secondary side coil is working. In this embodiment, the ignition module selects a pulse igniter to achieve ignition. The number of turns of the primary measuring coil is 20, and the number of turns of the secondary side coil is 2000.

[0079] like Figure 1 and Figure 8 As shown, the main control module is connected to a button measurement module, which includes buttons S3, S4, S5, and S6. One end of buttons S3, S4, S5, and S6 are respectively connected to the P1.0 pin, P1.1 pin, P1.2 pin, and P1.3 pin of the main control module, and the other end is grounded. Button S3 is used to receive a setting command input by the user. Button S4 is used to receive a parameter increase input command. Button S5 is used to receive a parameter decrease input command. Button S6 is used to receive a confirmation input command.

[0080] When the key circuit is working, the control program burned into the main control chip will periodically read the input status of the P1.0-P1.3 pins. If a pin detects 0V voltage, it means that the user has entered the corresponding setting command. For example, if the P1.0 pin becomes 0V voltage, it means that the user has entered the parameter setting control command.

[0081] like Figure 1 and Fig. 9As shown, the main control module is connected to a prompt module, which includes an indicator light D2, a buzzer LS, a transistor Q2 and a resistor R3. The base of the transistor Q2 is connected to the P2.0 pin of the main control module through the resistor R3, and the collector is connected to a 5V DC voltage. One end of the indicator light D2 is connected to the base of the transistor Q2, and the other end is connected to the buzzer LS and grounded. The other end of the buzzer LS is connected to the emitter of the transistor Q2.

[0082] Transistor Q2 acts as a switch, and the on or off of the switch determines whether prompt information needs to be output. When it is detected that the user presses a button, the software will change the input voltage of the P2.0 pin to 5V, and the C pole and E pole of the transistor Q2 of model S9013 will be directly connected, so that the buzzer LS and the indicator light D2 are in working state at the same time, and the sound and light prompt information will be output. When the button is released, the software will change the input voltage of the P2.0 pin to 0V, and the C pole and E pole of the transistor Q2 will be disconnected, so that the buzzer LS and the indicator light will stop working at the same time, and the control prompt circuit will no longer output sound and light prompt information.

[0083] like Figure 1 and Fig.10 As shown, the main control module is connected to a display module for displaying the water contact status of the life-saving airbag and the air pressure value in the life-saving airbag. The display module adopts a character-type liquid crystal display of model LCD1602. Its operating voltage is 3.3V~3.5V, and 11 external pins are reserved to establish data communication with other chips. The liquid crystal display includes: the power supply pins of the screen, VCC (positive pole) and GND (negative pole) are the power supply pins of the screen and the controller, and BLA (positive pole) and BLK (negative pole) are the power supply pins of the backlight source. Data transfer pins, DB0 (data low bit)~DB7 (data high bit), they are used to realize data exchange with external chips. Control pins, RS (register selection control pin), RW (data selection control pin) and E (data transmission enable control pin). Brightness adjustment pin, adjusting the input voltage of the VO pin can change the display brightness of the screen.

[0084] In the LCD screen drive circuit, the main control chip selects P2.5 (E), P2.4 (RW) and P2.3 (RS) pins to control the working state of the LCD screen, selects P0 port (DB0 ~ DB7) to expand the pull-up resistor circuit, and establishes data transmission with the LCD screen. The power supply pins of the screen and the backlight are connected to the two ends of the 5V power supply respectively, and the VO pin is connected to a variable resistor to adjust the display brightness of the screen.

[0085] When the main control chip needs 1602 display data, the main control chip will first send a command to the LCD screen through the P2.3-P2.4 pins to control the 1602 LCD screen to perform data display operations, and then write the position data and display content information to the data line of the LCD screen through the P0 port twice, and pass the data to the LCD screen by changing the E pin. Repeat the above operations twice to display a data on the LCD screen.

[0086] Working process: Collect and store sunlight in the wild, and convert it into electrical energy, which can supplement power for other electronic devices. Water contact monitoring can measure whether the life-saving airbag encounters water, and the measurement result is converted into a digital signal. The air pressure measurement and control function can measure the air pressure value in the life-saving airbag. If the life-saving airbag contacts water, the system can turn on the air pump to inflate the life-saving airbag. When the air pressure value in the life-saving airbag is the same as the set value, the inflation operation ends automatically. The information interaction function can display the water contact status of the life-saving airbag, the air pressure measurement value and the working status of the system. In addition, the target air pressure setting value in the life-saving airbag can be set according to the needs of use. The ignition function can provide fire for soldiers to keep warm and cook in the wild.

[0087] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multifunctional single-soldier solar backpack device, characterized in that: It includes a power module, a water contact monitoring module, an air pressure measuring module, an inflation control module, an ignition module and a main control module; the signal output ends of the water contact monitoring module and the air pressure measuring module are connected to the signal input end of the main control module, and the signal output end of the main control module is connected to the signal input end of the inflation control module; The power module is used to convert the collected solar energy into electrical energy for storage and provide electrical energy for each module and external equipment; The water contact monitoring module is used to monitor and determine whether the life-saving airbag equipped on the backpack body encounters water, and send a water contact monitoring signal after encountering water; The air pressure measurement module is used to monitor the air pressure value in the life-saving airbag in real time and send out an air pressure measurement signal when the air pressure value reaches a preset threshold; A main control module, used to generate a start control command according to a water contact monitoring signal, and to generate a shut down control command according to an air pressure measurement signal; An inflation control module, used to open the air pump equipped on the backpack body to inflate the life-saving airbag according to a start control command, and to shut down the inflation state of the air pump according to a shut-down control command; Ignition module, used to generate instant high voltage to release arc to provide fire; The power module includes a solar panel, a battery, and a power supply circuit which are electrically connected in sequence, and the solar panel is mounted on the back of the backpack body; The power supply circuit includes a LM7812 transformer chip, a LM7809 transformer chip, a LM7805 transformer chip, an indicator light D5 and an indicator light D6; The solar panel outputs 20V DC voltage, which is input into the LM7812 transformer chip through the P3 terminal and then converted into 12V DC voltage output to charge the battery; when the solar panel is charging the battery, the indicator light D5 lights up; The LM7809 transformer chip and the LM1805 transformer chip convert the 12V DC voltage output by the battery into a 5V DC voltage output to provide power for external devices. When the load is connected to the 5V output circuit, the indicator D6 lights up. The water contact monitoring module includes a P1 terminal and a resistor R2. The 1st and 2nd pins of the P1 terminal are respectively connected to an electrical lead. The 1st pin of the P1 terminal is connected to the 5V DC voltage terminal through the resistor R2, and is connected to the P3.7 pin of the main control module. The output voltage of the P3.7 pin is monitored to determine whether the life-saving airbag encounters water. The air pressure measurement module includes a D3B pressure sensor and an ADC0832 analog-to-digital conversion chip, and the D3B pressure sensor and the ADC0832 analog-to-digital conversion chip are both connected to a 5V DC voltage terminal; The IN1 channel of the analog-to-digital conversion chip receives the air pressure measurement signal output by the D3B pressure sensor; The P3.4 pin of the main control module is connected to the SCLK pin of the analog-to-digital conversion chip, which is used to input the clock signal for communication between the two devices into the analog-to-digital conversion chip; The P3.6 pin of the main control module is connected to the CS pin of the analog-to-digital conversion chip to send a conversion start signal to the analog-to-digital conversion chip; The P3.5 pin of the main control module is connected to the DI / DO pin of the analog-to-digital conversion chip to transmit the conversion command to the analog-to-digital conversion chip and calculate the air pressure value in the life-saving airbag by reading the data returned by the P3.5 pin; The inflation control module includes a relay K2, a transistor Q3, a green indicator light D7, a red indicator light D8 and a resistor; The P2.1 pin of the main control module is connected to the REPLY pin, and the REPLY pin is connected to the base of the transistor Q3 through the resistor R9; the emitter of the transistor Q3 is grounded, and the collector is connected to one end of the relay K2, and the other end of the relay K2 is connected to the 5V DC voltage terminal; Relay K2 is connected in parallel with diode D3, and the output end of diode D3 is connected to the air pump through a red indicator light D8 and a resistor R11 connected in series; The normally open contact of relay K2 is connected in series with the green indicator light D7 and the resistor R10, one end of which is connected to the 5V DC voltage terminal and the other end is connected to the air pump; The main control module includes a main control chip, a reset circuit and a crystal oscillator circuit; The reset circuit includes a button S2, a capacitor C1, and a resistor R1; after the button S2 is connected in parallel with the capacitor C1, one end is connected to the 5V DC voltage terminal, and the other end is connected to the RST pin of the main control chip and grounded through the resistor R1; The crystal oscillator circuit includes capacitor C2, capacitor C3, and passive crystal oscillator X1; two output ends of the passive crystal oscillator X1 are respectively connected to the XTAL1 pin and the XTAL2 pin of the main control chip, capacitor C2 and capacitor C3 are connected in series and then connected in parallel with the passive crystal oscillator X1, and the connection point between capacitor C2 and capacitor C3 is grounded; The ignition module includes a switch tube Q1, a button S1, a high-voltage package T1, a rectifier diode D1, a rectifier diode D2, a filter capacitor C7, a voltage-stabilizing capacitor C5 and a voltage-stabilizing capacitor C6; Button S1 controls the output of the high-voltage package T1. When button S1 is turned on, the switch tube Q1 is turned on. Capacitor C5 ensures that when button S1 is turned on, a constant 5V DC voltage is input to the primary coil; Rectifier diodes D1 and D2 are connected in series to convert AC voltage into rectified voltage; The rectified voltage is stabilized by the voltage stabilizing capacitor C6 and outputs a pulsating DC high voltage between A and B of the secondary side coil; The filter capacitor C7 filters out the high-frequency interference signal generated when the secondary side coil is working.

2. The multifunctional individual solar backpack device according to claim 1 is characterized in that: The main control module is connected to a button measurement module, which includes a button S3, a button S4, a button S5, and a button S6. One end of the button S3, the button S4, the button S5, and the button S6 are respectively connected to the P1.0 pin, the P1.1 pin, the P1.2 pin, and the P1.3 pin of the main control module, and the other end is grounded; Button S3 is used to receive a setting command input by a user; Button S4 is used to receive parameter addition input command; Key S5, for receiving a parameter reduction input command; Key S6 is used to receive a confirmation input command.

3. The multifunctional individual solar backpack device according to claim 1 is characterized in that: The main control module is connected to a prompt module, which includes an indicator light D2, a buzzer LS, a transistor Q2 and a resistor R3; The base of transistor Q2 is connected to the P2.0 pin of the main control module through resistor R3, and the collector is connected to a 5V DC voltage; One end of the indicator light D2 is connected to the base of the transistor Q2, and the other end is connected to the buzzer LS and grounded; The other end of the buzzer LS is connected to the emitter of the transistor Q2.

4. The multifunctional individual solar backpack device according to claim 1 is characterized in that: The main control module is connected to a display module for displaying the water contact state of the life-saving airbag and the air pressure value in the life-saving airbag.

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