Container monitoring equipment powered by double energy sources

Abstract

The utility model discloses a container monitoring device with energy supplied by double energy sources, which relates to the field of Internet of Things monitoring equipment and comprises a solar panel, a standby battery, a first booster circuit, a second booster circuit, a super capacitor and a micro-control unit, the input end of the super capacitor is respectively connected with the output end of the first booster circuit and the output end of the second booster circuit, and the output end of the super capacitor is connected with the micro-control unit. The input end of the first booster circuit is connected with the output end of the solar panel, and the input end of the second booster circuit is connected with the output end of the standby battery; the output end of the super capacitor is connected with the input end of the micro-control unit, and the output end of the micro-control unit is connected with the input end of the first booster circuit and the input end of the second booster circuit. And a dual-energy power supply system of solar energy and a standby battery is adopted, so that the stable operation of the monitoring equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the field of Internet of Things monitoring devices, in particular to a container monitoring device with dual energy supply. Background Technique

[0002] The statements in this part merely provide background technical information related to the present disclosure and do not necessarily constitute prior art.

[0003] In the field of container transportation, due to the need for containers to undergo various transportation modes such as land transportation and sea transportation, the power supply problem has always been a key factor restricting the performance of Internet of Things monitoring devices. During the long-distance transportation of containers, it is often difficult to obtain a stable external power supply, which limits the continuous operation ability of the monitoring devices.

[0004] Due to the convenience and safety of dry batteries, most current Internet of Things container monitoring devices use disposable dry batteries for power supply. Although this power supply method is simple, it also brings the problem of needing to replace the battery in time after the power is exhausted. In actual operation, this not only increases the maintenance cost but also may cause the monitoring to be interrupted for a long time when the battery is not replaced in time, affecting the safety of goods.

[0005] Some container monitoring devices adopt a solar power supply scheme. Compared with the technical scheme of replacing batteries, the solar power supply technical scheme has the characteristics of automatic charging and maintenance-free. However, solar power supply has instability. In case of continuous rainy weather, it is impossible to carry out energy replenishment to maintain the operation of the device, which may cause the monitoring to be interrupted for a long time and affect the continuity of data. Content of the Utility Model

[0006] In order to solve the technical problems existing in the prior art, the utility model provides a container monitoring device with dual energy supply, adopting a dual energy power supply system of solar energy and dry batteries, effectively solving the problems that may be encountered in single energy power supply, avoiding long-term interruption of the monitoring device, ensuring the stable operation of the monitoring system, and maintaining data collection and transmission even under adverse weather conditions.

[0007] To achieve the above object, the utility model is realized by the following technical solutions:

[0008] A container monitoring device with dual - energy supply, including a solar panel, a backup battery, a first boost circuit, a second boost circuit, a super capacitor, and a micro - control unit. The input end of the super capacitor is respectively connected to the output end of the first boost circuit and the output end of the second boost circuit. The input end of the first boost circuit is connected to the output end of the solar panel, and the input end of the second boost circuit is connected to the output end of the backup battery. The output end of the super capacitor is connected to the input end of the micro - control unit, and the output end of the micro - control unit is respectively connected to the input end of the first boost circuit and the input end of the second boost circuit.

[0009] A further technical solution is that the second boost circuit is connected to the super capacitor through a charging circuit.

[0010] A further technical solution is that the output end of the second boost circuit is connected to the input end of the charging circuit, and the output end of the charging circuit is connected to the input end of the super capacitor.

[0011] A further technical solution is that the output end of the super capacitor is connected to the host control unit through an electronic switch.

[0012] A further technical solution is that the output end of the super capacitor is connected to the input end of the electronic switch, and the output end of the electronic switch is connected to the input end of the host control unit.

[0013] A further technical solution is that the electronic switch is a MOS transistor.

[0014] A further technical solution is that the input end of the electronic switch is connected to the output end of the micro - control unit.

[0015] A further technical solution is that a temperature and humidity sensor and an acceleration sensor are also provided inside the monitoring device, and the temperature and humidity sensor and the acceleration sensor are respectively connected to the host control unit.

[0016] A further technical solution is that the host control unit is also connected to a door magnetic sensor through Bluetooth.

[0017] A further technical solution is that the host control unit is also connected to a first communication module and a second communication module, and data is transmitted through the first communication module or the second communication module.

[0018] The beneficial effects of the present utility model:

[0019] The container monitoring device of the present utility model is powered by dual energy sources, solar energy and dry batteries. It not only combines the environmental protection advantages of solar energy and the reliability of dry batteries, but also effectively solves the problems that may be encountered in single - energy - source power supply, avoids long - term interruption of the monitoring device, ensures the stable operation of the monitoring system, and can maintain data collection and transmission even under adverse weather conditions.

[0020] The container monitoring device of the present utility model is equipped with Beidou / GPS dual-mode global satellite positioning and 4G mobile communication functions. It is carefully designed inside to accommodate various components and has a remote monitoring function based on low power consumption. Description of the Drawings

[0021] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model and do not constitute a limitation to the present utility model.

[0022] Figure 1 It is the dual-energy power supply circuit block diagram of the container monitoring device of the present utility model;

[0023] Figure 2 It is the dual-energy power supply circuit diagram of the container monitoring device of the present utility model;

[0024] Figure 3 It is the hardware framework diagram of the container monitoring device of the present utility model. Detailed Embodiment

[0025] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0026] As Figure 1 shown, the embodiment of the present utility model provides a container monitoring device with dual-energy power supply, including a solar panel, a backup battery, a first boost circuit, a second boost circuit, a super capacitor and a micro control unit. The input end of the super capacitor is respectively connected to the output ends of the first boost circuit and the second boost circuit. The input end of the first boost circuit is connected to the output end of the solar panel, and the input end of the second boost circuit is connected to the output end of the backup battery; the output end of the super capacitor is connected to the input end of the micro control unit, and the output end of the micro control unit is respectively connected to the input ends of the first boost circuit and the second boost circuit.

[0027] The output end of the second boost circuit is connected to the input end of the super capacitor through a charging circuit. The output end of the second boost circuit is connected to the input end of the charging circuit, and the output end of the charging circuit is connected to the input end of the super capacitor. The charging circuit is used to manage the charging process of the backup battery and realizes this function by using an existing integrated circuit chip.

[0028] The output end of the micro - control unit is also connected to the input end of the electronic switch and the input end of the host control unit. The input end of the host control unit is also connected to the output end of the super - capacitor through the electronic switch. Specifically, the output end of the super - capacitor is connected to the input end of the electronic switch, and the output end of the electronic switch is connected to the input end of the host control unit. The host control unit is communicatively connected to the micro - control unit.

[0029] In this embodiment, the input end of the micro - control unit is connected to the output end of the super - capacitor to receive the real - time voltage data of the super - capacitor. According to the comparison between the real - time voltage and the preset voltage threshold, it judges the opening and closing of the solar panel charging and the backup battery charging. Specifically, the micro - control unit uses an MCU chip and samples the real - time voltage of the super - capacitor through ADC.

[0030] Specifically, as Figure 2 shown, the micro - control unit BLE - MCU has a capacitance monitoring pin VSC - AI N, which is connected to the output end of the super - capacitor through the capacitance monitoring pin VSC - AI N. Specifically, the output end of the super - capacitor is connected to the first end of the third resistor R3. The second end of the third resistor R3 is respectively connected to the first end of the sixth resistor R6 and the first end of the eighth capacitor C8. The second end of the sixth resistor is connected to the second end of the eighth capacitor C8 and grounded. The first end of the eighth capacitor C8 is also connected to the capacitance monitoring pin VSC - AI N. Based on the above connections, the acquisition and monitoring of the real - time voltage of the super - capacitor are realized.

[0031] In some embodiments, the micro - control unit uses a chip of the GR551x model. The host control unit can select one of the STM32 series such as STM32F103vet6, the GD32 series such as GD32F130C8T6, the PIC series, etc. The models of the micro - control unit and the host control unit are not specifically limited and can be flexibly selected according to the actual situation.

[0032] In this embodiment, when the voltage of the super - capacitor is higher than the preset voltage threshold, it means that the solar charging is sufficient. At this time, the backup battery is turned off, which is realized by turning off the second boost circuit. The micro - control unit MCU outputs a control signal (level signal) to the first boost circuit, so that the first boost circuit is started. The solar panel is connected to the super - capacitor through the first boost circuit, and the solar panel charges the super - capacitor. Specifically, an efficient solar panel is configured above the monitoring device. The output voltage of the solar panel is boosted by the first boost circuit and then input to the super - capacitor to charge the super - capacitor. During the charging process, the micro - control unit MCU continuously receives the real - time voltage data of the super - capacitor. When the boost reaches the preset voltage threshold, it controls the first boost circuit to turn off and cut off the solar panel charging to protect the super - capacitor from damage by high voltage.

[0033] In some embodiments, the supercapacitor can be selected according to its capacitance, and flexible selection can be made according to the actual situation. For example, 143HC0111 with a capacitance of 10F.

[0034] Specifically, as Figure 2 shown, the first boost circuit includes a first chip U1. The power input pin VIN of the first chip U1 is connected to the output terminal VSP of the solar panel. The output terminal VSP of the solar panel is respectively connected to the first end of the fourth capacitor C4, the first end of the ninth resistor R9, and the first end of the first inductor L1. The second end of the fourth capacitor C4 is grounded. The second end of the first inductor L1 is connected to the synchronous rectifier output pin LX of U1. The second end of the ninth resistor R9 is respectively connected to the enable pin EN of U1 and the first boost pin BOOST1 of the microcontroller BLE-MCU.

[0035] In some embodiments, the first chip U1 uses a device of the PS7516 model.

[0036] By connecting the first boost pin BOOST1 of the microcontroller BLE-MCU to the enable pin EN of the first chip U1 in the first boost circuit, the control of starting and closing the first boost circuit is realized. Specifically, the enable pin EN receives the control signal (level signal) output by the microcontroller BLE-MCU through the first boost pin BOOST1, and controls the opening and closing of the first boost circuit according to the control signal (starting when receiving a high-level signal and closing when receiving a low-level signal).

[0037] Furthermore, the voltage feedback pin FB of U1 is respectively connected to the second end of the seventh resistor R7 and the first end of the eighth resistor R8. The first end of the seventh resistor R7 is grounded. The second end of the eighth resistor R8 is connected to the power MOS transistor output pin OUT of U1. The power MOS transistor output pin OUT of U1 is also connected to the input end of the supercapacitor bank through a first voltage regulation circuit. The energy provided by the solar panel is small and can directly charge the supercapacitor.

[0038] The first voltage regulation circuit includes a first resistor R1, a first diode D1, and a second diode D2, which play a role in regulating the voltage output by the first boost circuit. The output pin OUT of U1 is connected to the first end of the first resistor R1. The second end of the first resistor R1 is respectively connected to the negative electrode of the first diode D1 and the positive electrode of the second diode D2. The positive electrode of the first diode D1 is grounded. The negative electrode of the second diode D2 is connected to the input end of the supercapacitor bank, and the voltage here is 3.9V.

[0039] Further, the ground pin GND of the first chip U1 is grounded. Each resistor in the first boost circuit is used to protect the circuit and prevent short circuits. The fourth capacitor C4 is connected to the output terminal VSP of the solar panel. Since the output voltage of the solar panel is unstable, the fourth capacitor C4 is used to store solar energy.

[0040] The microcontroller unit MCU samples the voltage data of the supercapacitor through the analog-to-digital converter ADC. When the voltage of the supercapacitor rises to the preset voltage, a control signal (level signal) is sent to the first boost circuit to control the shutdown of the first boost circuit and cut off the charging path of the solar panel, so as to protect the supercapacitor from damage by high voltage. In this embodiment, the preset voltage is 3.9V. In other embodiments, it can be flexibly set according to actual situations.

[0041] In this embodiment, when the voltage of the supercapacitor is lower than the preset voltage threshold, it means that the solar charging is insufficient, and the microcontroller unit MCU turns off the power supply of the host control unit through the electronic switch.

[0042] Specifically, as Figure 2 shown, the electronic switch is the MOS transistor Q1, and the microcontroller unit MCU is the microcontroller unit BLE-MCU. The CPU enable pin VCPU-EN of the microcontroller unit BLE-MCU is respectively connected to the second terminal of the second resistor R2 and the second terminal of the fifth resistor R5. The first terminal of the second resistor R2 is respectively connected to the output terminal of the supercapacitor and the source S of the MOS transistor Q1. The gate G of the MOS transistor Q1 is connected to the first terminal of the fifth resistor R5. The drain D of the MOS transistor Q1 is respectively connected to VCPU and VDD. VCPU represents the power supply for the host control unit MAIN-CPU, and VDD represents the power supply for other components. Other components include Figure 3 the various modules shown.

[0043] That is to say, the microcontroller unit BLE-MCU outputs a control signal through its CPU enable pin VCPU-EN to control the on and off of the MOS transistor Q1, and further controls the on and off of the power supply of the supercapacitor to the host control unit.

[0044] Further, as Figure 2 shown, the output terminal of the supercapacitor is respectively connected to the first terminal of the second fuse F2 and the source S of the MOS transistor Q1. The second terminal of the second fuse F2 is connected to VBLE. The drain D of the MOS transistor Q1 is respectively connected to the first terminal of the third fuse F3 and the first terminal of the fourth fuse F4. The second terminal of the third fuse F3 is connected to VCPU, and the second terminal of the fourth fuse F4 is connected to VDD. That is to say, the output terminal of the supercapacitor is connected to VBLE, VCPU, and VDD to supply power to the microcontroller unit, the host control unit, and other components. Among them, F2, F3, and F4 play a role in protecting the circuit.

[0045] In the container monitoring device with dual - energy power supply, the super capacitor is used as a battery to supply power to the host control unit. At the same time, it also supplies power to the first communication module, storage module, second communication module, positioning module, Bluetooth module, clock module, acceleration sensor, and temperature - humidity sensor connected to the host control unit. To make the charging circuit structure of the super capacitor clearer, Figure 1 the connection relationship of the super capacitor supplying power to other components is not drawn in the figure. According to the existing technology, the power - supply connection of the super capacitor can be understood. When the voltage of the super capacitor is lower than the preset voltage threshold, the host control unit with high power consumption is turned off to increase the charging speed.

[0046] It should be noted that turning off the power supply of the host control unit is to prevent the last remaining power from being exhausted by the host control unit, resulting in the inability of the micro - control unit (MCU) to start the standby - battery charging path for charging. The power - off of the host control unit is temporary. When the voltage of the super capacitor is higher than the preset voltage threshold, the electronic switch is controlled to turn on the power supply of the host control unit, enabling the monitoring device to run again.

[0047] When the power supply of the host control unit (i.e., the central processing unit CPU) is turned off, the micro - control unit outputs level signals to the first boost circuit and the second boost circuit. Specifically, it outputs a low - level signal to the first boost circuit to turn off the first boost circuit, and outputs a high - level signal to the second boost circuit to start the second boost circuit, realizing the charging of the super capacitor by the standby battery. The standby battery is connected to the charging circuit through the second boost circuit. The output terminal of the standby battery is connected to the input terminal of the second boost circuit, and the output terminal of the second boost circuit is connected to the input terminal of the charging circuit. The second boost circuit boosts the voltage of the standby battery to 5V and then charges the super capacitor through the charging circuit.

[0048] In this embodiment, the high level is set as the start - control signal, and the low level is set as the off - control signal. In actual applications, it can also be set that the low level is the start - control signal and the high level is the off - control signal, which is implemented by using existing design methods;

[0049] Specifically, the second boost circuit includes a third chip U3. The power - supply input pin VIN of the third chip U3 is connected to the output terminal VBAT of the standby battery through a first fuse F1. The output terminal VBAT of the standby battery is respectively connected to the first end of a sixth capacitor C6, the first end of an eighteenth resistor R18, and the first end of a second inductor L2. The second end of the sixth capacitor C6 is grounded. The second end of the second inductor L2 is connected to the synchronous rectifier output pin LX of U2. The second end of the eighteenth resistor R18 is respectively connected to the enable pin EN of U2 and the second boost pin BOOST2 of the micro - control unit BLE - MCU.

[0050] In some embodiments, the third chip U3 uses a device of model PS7516.

[0051] The enable pin EN of the third chip U3 in the second boost circuit is connected to the second boost pin BOOST2 of the microcontroller unit BLE-MCU to control the startup and shutdown of the second boost circuit. Specifically, the enable pin EN receives the control signal (level signal) output by the microcontroller unit BLE-MCU through the second boost pin BOOST2, and controls the opening and closing of the second boost circuit according to the control signal (starts when receiving a high-level signal and shuts down when receiving a low-level signal).

[0052] Furthermore, the voltage feedback pin FB of U3 is respectively connected to the second end of the fourteenth resistor R14 and the first end of the seventeenth resistor R17. The first end of the fourteenth resistor R14 is grounded, and the second end of the seventeenth resistor R17 is connected to the power MOS transistor output pin OUT of U3. The output pin OUT of U3 is also connected to the input end of the charging circuit through the second voltage regulation circuit, and the super capacitor is charged through the charging circuit.

[0053] The second voltage regulation circuit includes a fourth resistor R4, a third diode D3, a fourth diode D4, and a tenth capacitor C10, which plays a role in stabilizing the voltage output by the second boost circuit. The output pin OUT of U3 is connected to the second end of the fourth resistor R4. The first end of the fourth resistor R4 is respectively connected to the negative electrode of the third diode D3 and the positive electrode of the fourth diode D4. The positive electrode of the third diode D3 is grounded. The negative electrode of the fourth diode D4 is respectively connected to the first end of the tenth capacitor C10 and the input end of the charging circuit. The second end of the tenth capacitor C10 is grounded. The voltage input here at the input end of the charging circuit is 5V.

[0054] Furthermore, the ground pin GND of the third chip U3 is grounded. Each resistor in the second boost circuit is used to protect the circuit and prevent short circuits.

[0055] Specifically, as Figure 2 shown, the charging circuit includes a second chip U2. The input end of the charging circuit is the input pin VIN of the second chip U2. The output end of the second voltage regulation circuit is respectively connected to the input pin VIN of the second chip U2 and the second end of the tenth resistor R10. The first end of the tenth resistor R10 is respectively connected to the resistor connection pin RC of U2 and the first end of the seventh capacitor C7. The second end of the seventh capacitor C7 is grounded.

[0056] In some embodiments, the second chip U2 uses a device of model CN3085.

[0057] Further, the charging control signal input pin CHRG of the second chip U2 is left unconnected, the ground pin GND is grounded, the current setting pin ISET is connected in series with the sixteenth resistor R16 to ground, and the temperature monitoring pin TEMP is connected in series with the seventeenth resistor R17 to ground. The temperature monitoring pin TEMP is also connected to the second end of the eleventh resistor R11, and the first end of the eleventh resistor R11 is connected to the output end of the second voltage stabilizing circuit. The feedback pin FB of U2 is respectively connected to the second end of the twelfth resistor R12 and the first end of the fourteenth resistor R14. The second end of the fourteenth resistor R14 is grounded, and the first end of the twelfth resistor R12 is respectively connected to the battery positive connection pin BAT of U2 and the input end of the super capacitor. The charging of the backup battery to the super capacitor is achieved through the above charging circuit.

[0058] The microcontroller unit continuously detects the voltage of the super capacitor. When the voltage of the super capacitor is higher than the preset voltage threshold, it controls to turn off the second boost circuit, cut off the charging path of the backup battery, save the energy of the disposable backup battery, and output a control signal to the electronic switch through the CPU enable pin VCPU-EN of the microcontroller unit BLE-MCU to control the electronic switch to turn on the power supply of the host control unit and make the monitoring device run again.

[0059] In some embodiments, multiple super capacitors can be set and expanded in parallel according to the required charging capacity to increase the energy storage capacity. As Figure 2 shown, the energy storage capacity is increased by connecting the fifth capacitor C5, the third capacitor C3, the first capacitor C1, and the second capacitor C2 in parallel. In some other embodiments, the monitoring device can be replaced with a nickel-metal hydride battery with a larger capacity.

[0060] It should be noted that the microcontroller unit MCU uses existing methods for collecting the voltage data of the super capacitor, outputting control signals for the first boost circuit, the second boost circuit, and the electronic switch, which belong to the functions of the MCU chip itself and do not involve improvements in software programs.

[0061] In this embodiment, as Figure 2 shown, the host control unit MAIN-CPU has a battery monitoring pin VBAT-AIN, which is connected to the output end VBAT of the backup battery through the battery monitoring pin VBAT-AIN to monitor the dry battery voltage and facilitate measuring the remaining power of the dry battery. The host control unit uses an existing monitoring method to monitor the remaining power of the dry battery.

[0062] Specifically, the battery monitoring pin VBAT-AIN of the host control unit is respectively connected to the second end of the nineteenth resistor R19, the first end of the twentieth resistor R20, and the first end of the ninth capacitor C9. The second end of the twentieth resistor R20 is grounded, the second end of the ninth capacitor C9 is grounded, and the first end of the nineteenth resistor R19 is connected in series with the first fuse F1 to the output terminal VBAT of the backup battery.

[0063] In this embodiment, the monitoring device supports traditional data acquisition functions, acquires the position, temperature, and humidity data of the container during operation, and transmits the acquired data to the server for storage and analysis through wireless communication.

[0064] As Figure 2 shown, the above functions are controlled and implemented by the host control unit. The temperature and humidity sensor and the acceleration sensor are arranged inside the monitoring device and are respectively connected to the host control unit through wires. The door magnetic sensor is fixedly arranged inside the container and is connected to the host control unit through Bluetooth. The host control unit receives the data collected by each sensor; it is also respectively connected to the positioning module and the clock module to receive positioning data and time data; it is also respectively connected to the first communication module, the second communication module, and the Bluetooth module to transmit the received data to the server in various ways; it is also connected to the storage module for storing user data and cached message data.

[0065] Among them, except for the door magnetic sensor, the temperature and humidity sensor, the acceleration sensor, the positioning module, the clock module, the first communication module, the second communication module, the Bluetooth module, and the storage module are all arranged inside the monitoring device. The temperature and humidity sensor inside the monitoring device acquires the temperature and humidity data outside the container. The model of the door magnetic sensor is MDS-210-D, and a temperature and humidity sensor is provided inside the door magnetic sensor, which is used to acquire the temperature and humidity data inside the container.

[0066] Antennas are also provided on the Bluetooth module, the second communication module, and the positioning module to enhance the reception and transmission of signals and achieve wireless communication. The acceleration sensor is used to detect the movement, impact, vibration, etc. of the container, and transmits the detected situations to the host control unit, which is then transmitted to the server for storage and viewing through the first or second communication module. The temperature and humidity sensor is used to monitor the ambient temperature change and humidity change in real time. The Bluetooth module allows the monitoring device to perform wireless communication with other nearby Bluetooth devices.

[0067] An advanced door magnetic sensor is installed inside the container. The door magnetic sensor monitors the status of the container door (detects illegal door opening and closing behaviors) and also collects temperature and humidity data inside the container. According to different distance requirements, the monitoring device is equipped with multiple communication methods, including Bluetooth module for Bluetooth interactive communication, the first communication module is realized through Sub-1GHz low-power radio frequency communication, and the second communication module is realized through 4G LTE operator network communication. In order to know the location of the container in real time, a positioning module is also set in the monitoring device, including Beidou positioning and CPS positioning.

[0068] In some embodiments, each module, acceleration sensor, and temperature and humidity sensor connected to the host control unit can adopt existing mainstream functional modules, and no specific limitations are made in this embodiment. For example, the acceleration sensor uses ADXL3458BCCZ, the temperature and humidity sensor uses SHT30-DI S-B10KS, the positioning module uses ATGM336H-5N31, and the clock module uses DS1307ZM / TR.

[0069] It can be seen that the monitoring device integrates multiple modules to achieve data collection, data transmission, and positioning functions. The host control unit is a central processing unit CPU, and the collection and transmission between the central processing unit and other modules are all realized by existing methods, without involving improvements in software programs, and those skilled in the art can know its implementation method.

[0070] Detailed description of the working principle:

[0071] The container monitoring device with dual-energy power supply realizes dual-energy power supply of solar energy and backup battery. When the voltage of the super capacitor is higher than the preset voltage threshold (sufficient sunlight), solar energy is the main energy source to charge the super capacitor of the monitoring device, and the super capacitor acts as a battery to meet the daily low-frequency positioning and communication functions. When the voltage of the super capacitor is lower than the preset voltage threshold, that is, the solar panel cannot provide enough power due to environmental factors, the device switches to the backup battery to charge the super capacitor.

[0072] Although the specific implementation manners of the present invention are described above in conjunction with the drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solutions of the present invention, various modifications or deformations that can be made by those skilled in the art without creative efforts are still within the protection scope of the present invention.

Claims

1. A dual-energy powered container monitoring device, characterized in that: The invention comprises a solar panel, a backup battery, a first boost circuit, a second boost circuit, a super capacitor and a micro control unit, wherein the input end of the super capacitor is respectively connected to the output end of the first boost circuit and the output end of the second boost circuit, the input end of the first boost circuit is connected to the output end of the solar panel, and the input end of the second boost circuit is connected to the output end of the backup battery; the output end of the super capacitor is connected to the input end of the micro control unit, and the output end of the micro control unit is respectively connected to the input end of the first boost circuit and the input end of the second boost circuit.

2. The dual-energy powered container monitoring device according to claim 1, characterized in that: The second boost circuit is connected to the super capacitor through a charging circuit.

3. A dual-energy powered container monitoring device as claimed in claim 2, characterized in that: The output end of the second boost circuit is connected to the input end of the charging circuit, and the output end of the charging circuit is connected to the input end of the super capacitor.

4. The dual-energy powered container monitoring device according to claim 1, characterized in that: The output end of the super capacitor is connected to the host control unit through an electronic switch.

5. The dual-energy powered container monitoring device according to claim 4, characterized in that: The output end of the super capacitor is connected to the input end of the electronic switch, and the output end of the electronic switch is connected to the input end of the host control unit.

6. The dual-energy powered container monitoring device according to claim 4, characterized in that: The electronic switch is a MOS tube.

7. The dual-energy powered container monitoring device according to claim 4, characterized in that: The input end of the electronic switch is connected to the output end of the micro control unit.

8. The dual-energy powered container monitoring device according to claim 4, characterized in that: The monitoring device is also provided with a temperature and humidity sensor and an acceleration sensor, and the temperature and humidity sensor and the acceleration sensor are respectively connected to the host control unit.

9. A dual-energy powered container monitoring device as claimed in claim 8, characterized in that: The host control unit is also connected to the door magnetic sensor via Bluetooth.

10. The dual-energy powered container monitoring device according to claim 4, characterized in that: The host control unit is also connected to the first communication module and the second communication module, and transmits data through the first communication module or the second communication module.

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