Power supply system of safe isolation power supply for Internet of Things

Abstract

The utility model relates to the technical field of intelligent power supply, in particular to a power supply system of a safety isolation power supply for the Internet of Things, which comprises a single-chip microcomputer judgment system, the single-chip microcomputer judgment system is connected to a UPS (Uninterrupted Power Supply) through a circuit, and the single-chip microcomputer judgment system is connected to a load through a control circuit. The load comprises an important equipment line, a secondary equipment line, first alarm equipment and second alarm equipment, and the UPS comprises a power supply line and a bypass. The functions of automatically adjusting the on-off of the load when the power supply application of the Internet of Things goes wrong, giving an alarm when the mains supply is cut off and the power supply of the secondary equipment is cut off, and preferentially supplying power to the important equipment for use under the condition of long-time mains supply cut-off are realized.

Description

Technical Field

[0001] This application relates to the field of smart power supply technology, and more specifically to a power supply system for a secure, isolated power supply for the Internet of Things. Background Technology

[0002] The background technologies of IoT power supply systems mainly involve multiple aspects such as mains power, high-voltage power distribution systems, low-voltage power distribution systems, building power distribution systems, and power supply for large equipment. Among them, the backup power supply system is an important component, responsible for providing backup power when the mains power system fails or experiences a prolonged power outage, ensuring that critical IoT devices can operate normally and thus provide normal usage.

[0003] Furthermore, the application of electricity is crucial; only by optimizing power supply and distribution design can a stable power source be provided for IoT devices. Therefore, the design requirements for power supply systems for the IoT are high, needing to meet the safe and reliable daily power supply needs of IoT devices. Currently, many IoT power supply facilities were built in the 20th century, resulting in aging equipment, numerous safety hazards, and low levels of intelligence. These problems need to be addressed through equipment upgrades, design optimization, and improved intelligence.

[0004] Currently, many IoT devices utilize UPS (Uninterruptible Power Supply) to handle mains power failures. However, existing UPS systems primarily replace mains power to supply power to all loads and cannot intelligently adjust to prioritize power supply for critical equipment in the event of prolonged mains power outages. Therefore, in IoT electrical design, different devices and locations have varying power requirements, making intelligent allocation of reserve power crucial. Only by optimizing the power supply and distribution design can a stable power supply be provided for IoT devices. Utility Model Content

[0005] To address the shortcomings of existing technologies, a power supply system for secure isolated power supplies for the Internet of Things (IoT) is provided, including a microcontroller-based judgment system. The microcontroller-based judgment system is connected to a UPS (Uninterruptible Power Supply) via a circuit. The microcontroller-based judgment system is connected to a load via a control circuit. The load includes important equipment lines, secondary equipment lines, a first alarm device, and a second alarm device. The UPS includes power supply lines and a bypass.

[0006] Compared with the prior art, the present invention has the following beneficial effects:

[0007] 1. Improve the reliability and intelligent management of power supply: The system uses a microcontroller to intelligently control the switching of all loads. This allows the system to automatically prioritize power supply to critical equipment when the mains power fails, thereby ensuring that the most important services in the Internet of Things environment are not affected by power outages. This intelligent switching mechanism significantly improves the system's response speed and reliability in emergency situations.

[0008] 2. Real-time power monitoring and load optimization: This system has a built-in power detector that works closely with the microcontroller judgment system to achieve real-time power monitoring. After the microcontroller judgment system of this utility model is programmed, it can automatically adjust the load switching through the power detector without manual adjustment.

[0009] 3. Enhance the system's early warning and safety functions: By integrating the first and second alarm devices, the system can immediately issue a warning when the mains power supply is interrupted or the load is too high. This early warning mechanism allows operators to take quick measures, such as manually switching equipment or starting the backup power supply, to prevent possible safety accidents or equipment damage.

[0010] 4. Power quality optimization: By integrating advanced power processing technologies such as rectifier filters, isolation transformers, and harmonic mitigation modules, the power quality of the power supply line is effectively optimized. These components help reduce noise and harmonics in the power supply, improve power stability and equipment operating efficiency, and reduce the failure rate.

[0011] 5. System scalability and flexibility: The UPS uninterruptible power supply in the design includes power supply lines and bypass operation functions, which not only ensures the efficient operation of the system when the mains power is normal, but also allows for rapid switching to backup power when the mains power is abnormal. In addition, the system's structural design takes into account the expansion needs of future technologies, and can be upgraded or expanded according to new technological developments and requirements.

[0012] Overall, this invention significantly improves the intelligence level of power supply in the Internet of Things (IoT) environment, ensures the stable operation of key equipment under different power supply conditions, enhances the system's ability to cope with power outages, and provides solid power support for the long-term reliable operation of IoT devices. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the microcontroller-based judgment system and load of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the UPS uninterruptible power supply of this utility model.

[0017] The diagram is labeled as follows: 1. Microcontroller judgment system; 2. Power detector; 3. UPS uninterruptible power supply; 4. Load; 101. Microcontroller; 102. Pin; 301. Input circuit breaker; 302. Rectifier filter; 303. Inverter; 304. Isolation transformer; 305. Harmonic mitigation module; 306. Output circuit breaker; 307. Bypass circuit breaker; 308. Bypass; 309. Battery pack; 310. Bypass isolation transformer; 401. Important equipment line; 402. Secondary equipment line; 403. First alarm device; 404. Second alarm device. Detailed Implementation

[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0019] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0020] Example 1:

[0021] Please see reading Figures 1-3 A power supply system for a secure isolated power supply for the Internet of Things includes a microcontroller judgment system 1, which is connected to a UPS uninterruptible power supply 3 via a circuit. The microcontroller judgment system 1 is connected to a load 4 via a control circuit. The load 4 includes an important equipment line 401, a secondary equipment line 402, a first alarm device 403, and a second alarm device 404. The UPS uninterruptible power supply 3 includes a power supply line and a bypass 308.

[0022] The microcontroller judgment system 1 includes a microcontroller 101, which includes multiple pins 102. Each pin 102 contains a pull-up transistor and a pull-down transistor.

[0023] The power supply line includes at least an input circuit breaker 301, a rectifier filter 302, a battery pack 309, an inverter 303, an isolation transformer 304, a harmonic mitigation module 305, and an output circuit breaker 306. One end of the input circuit breaker 301 is connected to the mains power, and the other end of the input circuit breaker 301 is connected in sequence to the rectifier filter 302, the battery pack 309, the inverter 303, the isolation transformer 304, the harmonic mitigation module 305, and the output circuit breaker 306 through a circuit. The bypass 308 is connected in parallel with the power supply line, and the bypass 308 has a bypass circuit breaker 307 and a bypass isolation transformer 310.

[0024] Important equipment line 401, secondary equipment line 402, first alarm device 403 and second alarm device 404 are respectively connected to the corresponding pin 102 through control circuit.

[0025] The power detector 2 is connected to the battery pack 309 via a detection circuit.

[0026] The microcontroller 101 of the microcontroller judgment system 1 is connected to the power detector 2 through a signal circuit.

[0027] The implementation principle of the power supply system for the secure isolation power supply of the Internet of Things in this embodiment is as follows: the microcontroller 101 can control the closing and opening of the circuit by outputting high and low levels. The pin of the microcontroller 101 has a pair of transistors, called pull-up transistors and pull-down transistors. When a high level is output, the pull-up transistor is turned on to connect the pin to the power supply; when a low level is output, the pull-down transistor is turned on to connect the pin to ground, thereby controlling the closing and opening of the circuit.

[0028] When the mains power supply is normal, the input circuit breaker 301 and the output circuit breaker 306 are in the closed state, and the bypass circuit breaker 307 is in the open state. Part of the mains power is supplied to the battery pack 309 for charging through the UPS uninterruptible power supply 3, and the other part is connected to the important equipment line 401 and the secondary equipment line 402 in the load 4 through the microcontroller judgment system. When the mains power passes through the UPS uninterruptible power supply 3, it is first converted from AC to DC by the rectifier filter 302. Part of the converted DC power can charge the battery pack 309; the rest is converted back to AC by the inverter 303; then the voltage is converted to the voltage required by the Internet of Things by the isolation transformer 304 and the high-frequency noise is suppressed from entering the control circuit; then the current is filtered by the harmonic mitigation module 305 to remove harmonics, reduce the heat of the lines and equipment, reduce safety hazards, and improve the safety and reliability of the power supply; finally, the current is connected to the microcontroller judgment system 1 through the UPS uninterruptible power supply 3.

[0029] At this time, the microcontroller 101 controls the pull-up transistors in pins 102 connected to the important equipment line 401 and the secondary equipment line 402 to keep the control circuit in the closed state; the microcontroller 101 controls the pull-down transistors in pins 102 connected to the first alarm device 403 and the second alarm device 404 to keep the control circuit in the open state. Thus, the mains power, after a series of processing steps, is connected to the important equipment line 401 and the secondary equipment line 402.

[0030] When the mains power supply is interrupted, the battery pack 309 immediately switches from charging to power supply. After the power detector 2 detects the electrical signal indicating the switch to power supply, it converts the electrical signal into a digital signal and transmits it to the microcontroller 101 in the microcontroller judgment system 1. The microcontroller 101 controls the pull-up transistor in pin 102, which is connected to the important equipment line 401, the secondary equipment line 402, and the first alarm device 403, to keep the control circuit in a closed state. The microcontroller 101 also controls the pull-down transistor in pin 102, which is connected to the second alarm device 404, to keep the control circuit in an open state. At this time, the important equipment line 401 and the secondary equipment line 402 continue to operate normally. Meanwhile, the first alarm device 403 is connected to the battery pack 309 and issues a warning to the power maintenance personnel to investigate circuit problems.

[0031] When the mains power supply is interrupted for a long time, the remaining power of the battery pack 309 reaches the alarm threshold set by the power detector 2. After detecting the electrical signal of the remaining power status, the power detector 2 converts the electrical signal into a digital signal and transmits it to the microcontroller 101 in the microcontroller judgment system 1. The microcontroller 101 controls the pull-up transistor in the pin 102 connected to the important equipment line 401, the secondary equipment line 402, and the second alarm device 404 to keep the control circuit in the closed state. The microcontroller 101 controls the pull-down transistor in the pin 102 connected to the first alarm device 404 to keep the control circuit in the open state. At this time, the important equipment line 401 and the secondary equipment line 402 continue to operate normally. At the same time, the second alarm device 404 is connected to the battery pack 309 and issues a warning to the staff that the secondary equipment line is about to be disconnected.

[0032] After a period of time, the remaining power of the battery pack 309 reaches the power-off threshold set by the power detector 2 for the secondary equipment line 2. After detecting the electrical signal of the remaining power status, the power detector 2 converts the electrical signal into a digital signal and transmits it to the microcontroller 101 in the microcontroller judgment system 1. The microcontroller 101 controls the pull-up transistor in the pin 102 connected to the important equipment line 401 to keep the control circuit in the closed state. The microcontroller 101 controls the pull-down transistor in the pin 102 connected to the first alarm device 404, the secondary equipment line 402, and the second alarm device 404 to keep the control circuit in the open state. At this time, the important equipment line 401 continues to operate normally.

[0033] When the mains power supply is restored, the battery pack 309 switches from power supply to charging state, and the system returns to the operating state when the mains power supply is normal.

[0034] When the UPS uninterruptible power supply 3 needs maintenance, the maintenance personnel will close the bypass circuit breaker 307 and open the input circuit breaker 301 and the output circuit breaker 306, and then perform maintenance on the UPS uninterruptible power supply 3. After the maintenance is completed, the maintenance personnel will open the bypass circuit breaker 307 and close the input circuit breaker 301 and the output circuit breaker 302, and the system will return to normal operation.

[0035] Through the above methods, this utility model realizes intelligent power supply management of the Internet of Things during power outages, ensuring the power supply of important and secondary equipment during short-term power outages, as well as ensuring the normal power supply of important equipment and the power outage control of secondary equipment such as domestic electricity and auxiliary equipment during long-term power outages.

[0036] Although this paper extensively uses terms such as microcontroller judgment system 1; power detector 2; UPS uninterruptible power supply 3; load 4; microcontroller 101; pin 102; input circuit breaker 301; rectifier filter 302; inverter 303; isolation transformer 304; harmonic mitigation module 305; output circuit breaker 306; bypass circuit breaker 307; bypass 308; battery pack 309; bypass isolation transformer 310; important equipment line 401; secondary equipment line 402; first alarm device 403; second alarm device 404, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any kind of additional limitation would contradict the spirit of this utility model.

[0037] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "control circuit", "detection circuit", "signal circuit", etc. should be interpreted broadly. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A power supply system for a secure isolated power supply for the Internet of Things, comprising a single-chip microcomputer judgment system (1) and a power detector (2), characterized in that, The single-chip microcomputer judgment system (1) is connected to the UPS uninterrupted power supply (3) through a circuit, the UPS uninterrupted power supply (3) is connected with the electric quantity detector (2), the single-chip microcomputer judgment system (1) is connected to the load (4) through a control circuit, the load (4) comprises an important equipment circuit (401), a secondary equipment circuit (402), a first alarm device (403) and a second alarm device (404), and the UPS uninterrupted power supply (3) comprises a power supply circuit and a bypass (308).

2. The power supply system for a secure isolated power supply for the Internet of Things of claim 1, wherein, The single-chip microcomputer judgment system (1) comprises a single-chip microcomputer (101), the single-chip microcomputer (101) comprises a plurality of pins (102), and any pin of the plurality of pins (102) comprises an up pull tube and a down pull tube.

3. The power supply system for secure isolated power supply for Internet of Things as claimed in claim 1 wherein, The power supply circuit comprises at least an input circuit breaker (301), a rectifier filter (302), a battery pack (309), an inverter (303), an isolation transformer (304), a harmonic control module (305) and an output circuit breaker (306), one end of the input circuit breaker (301) is connected to a commercial power supply, the other end of the input circuit breaker (301) is connected to the rectifier filter (302), the battery pack (309), the inverter (303), the isolation transformer (304), the harmonic control module (305) and the output circuit breaker (306) in sequence through a circuit, the bypass (308) is connected with the power supply circuit in parallel, and the bypass (308) is provided with a bypass circuit breaker (307) and a bypass isolation transformer (310).

4. The power providing system for a secure isolated power supply for the Internet of Things of claim 2, wherein, The important equipment circuit (401), the secondary equipment circuit (402), the first alarm device (403) and the second alarm device (404) are connected to the corresponding pins (102) through control circuits respectively.

5. The power supply system for secure isolated power supply for Internet of Things as claimed in claim 3 wherein, The electric quantity detector (2) is connected to the battery pack (309) through a detection circuit.

6. The power-providing system for a secure isolated power supply for the Internet of Things of claim 5, wherein, The single-chip microcomputer (101) of the single-chip microcomputer judgment system (1) is connected to the electric quantity detector (2) through a signal circuit.

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