Power monitoring system for a dense rack

Abstract

The utility model relates to the technical field of file storage equipment discloses dense shelf power monitoring system, including power management module, MCU core circuit, read -write module power supply circuit, read -write interface module, TCP IP communication interface circuit, RS232 communication interface circuit, pilot lamp \ electronic lock output circuit, door state signal circuit, MCU core circuit electric connection power management module, read -write module power supply circuit, read -write interface module, TCP IP communication interface circuit, RS232 communication interface circuit, pilot lamp \ electronic lock output circuit, door state signal circuit, in the utility model, through adopting double -deck safety door design, can effectively carry out the isolation of strong electricity, guarantees the use safety of operator, and provides standard RS485 CAN interface, realizes the data communication with the frame body, still has security alarm function to the guarantee product use safety.

Description

Technical Field

[0001] This utility model relates to the field of archive storage equipment technology, and in particular to a power monitoring system for mobile shelving units. Background Technology

[0002] As a core piece of equipment in modern archive storage, the stability of the power system of mobile shelving units directly affects the security and efficiency of archive management. Currently, mobile shelving units generally use a centralized power supply mode, resulting in complex power lines and large load fluctuations, making them prone to failure due to overload, short circuits, or poor contact. While the industry has gradually introduced current and voltage monitoring modules, these are mostly limited to single parameter acquisition and lack comprehensive diagnostic capabilities for power status. In recent years, with the penetration of IoT technology in the warehousing field, the demand for intelligent monitoring has increased significantly, but existing technologies still suffer from high response latency and redundant wiring. Therefore, there is a need to develop a mobile shelving unit power monitoring system. Utility Model Content

[0003] To overcome the above shortcomings, this utility model provides a power monitoring system for mobile shelving units, which aims to improve the problem that the existing technology generally adopts a centralized power supply mode and is limited to the acquisition of a single parameter, lacking the ability to comprehensively diagnose the power status.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a mobile shelving power monitoring system, comprising a power management module, an MCU core circuit, a reader / writer module power supply circuit, a reader / writer interface module, a TCP / IP communication interface circuit, an RS232 communication interface circuit, an indicator / electronic lock output circuit, and a door status signal circuit. The MCU core circuit is electrically connected to the power management module, the reader / writer module power supply circuit, the reader / writer interface module, the TCP / IP communication interface circuit, the RS232 communication interface circuit, the indicator / electronic lock output circuit, and the door status signal circuit.

[0005] Through the above technical solution: the mobile shelving unit can provide stable power through the power management module; the MCU core circuit can perform overall control; the reader / writer module power supply circuit and interface module can realize the reading and writing of item information; the TCP / IP and RS232 communication interface circuit can ensure data transmission and interaction; the indicator light / electronic lock output circuit can realize status indication and security protection; and the door status signal circuit can monitor the door status in real time. Through the coordination of each part, efficient, safe, and intelligent file management and equipment control can be achieved. As the core control unit, the MCU core circuit needs to be electrically connected to each functional module to realize the control and data interaction of the entire system.

[0006] As a further description of the above technical solution:

[0007] Pin 32 of the main control chip U9 in the MCU core circuit is connected to the power supply circuit of the reader module, and pins 31 and 39 of the main control chip U9 in the MCU core circuit are connected to pins 6 and 7 of the reader interface module, respectively.

[0008] Through the above technical solution, the main control chip U9 of the MCU core circuit can control the power supply circuit of the reader module to turn on and off through pins, and communicate with the reader interface module to realize data interaction.

[0009] As a further description of the above technical solution:

[0010] Pins 12 and 13 of the main control chip U9 in the MCU core circuit are connected to pins 8 and 9 of the TCP / IP communication interface circuit, respectively.

[0011] The above technical solution enables the main control chip U9 of the MCU core circuit to connect to the TCP / IP communication interface through pins to realize network data transmission, thereby managing the reader module and network communication functions in a coordinated manner, and ensuring the label recognition and remote data interaction of the mobile shelving system.

[0012] As a further description of the above technical solution:

[0013] Pins 22 and 21 of the main control chip U9 in the MCU core circuit are connected to pins 10 and 9 of the RS232 communication interface circuit, respectively. Pins 38, 39, 40, 41, 42, 45, and 46 of the main control chip U9 in the MCU core circuit are connected to pins 7, 6, 5, 4, 3, 2, and 1 of the U1 chip in the indicator / electronic lock output circuit, respectively.

[0014] The above technical solution enables serial data interaction with external devices and precise control of indicator light status display and electronic lock unlocking actions, ensuring the coordinated operation of system communication and security protection functions.

[0015] As a further description of the above technical solution:

[0016] Pins 16, 17, and 18 of the main control chip U9 in the MCU core circuit are connected to the gate status signal circuits Y1, Y2, and Y3, respectively. Pins 34 and 37 of the main control chip U9 in the MCU core circuit are connected to pins 2 and 3 of the debug interface circuit, respectively.

[0017] The above technical solution enables real-time acquisition of the opening and closing status information of the mobile shelving doors, while also facilitating system debugging and maintenance, and ensuring the coordinated operation of equipment monitoring functions and maintainability.

[0018] As a further description of the above technical solution:

[0019] Pin 19 of the main control chip U9 in the MCU core circuit is connected to a communication mode switching switch K1. The communication mode switching switch K1 is pulled up to VCC_3.3 through resistor R18 and grounded through capacitor C20, thereby reducing the risk of damage to the main control chip by static electricity and surges and extending the chip's service life.

[0020] Through the above technical solution: the pins of the main control chip U9 of the MCU core circuit are connected to the communication mode switching switch K1, and pulled up to VCC_3.3 through resistor R18, while grounded through capacitor C20. This design realizes flexible switching of communication mode and improves anti-interference capability.

[0021] As a further description of the above technical solution:

[0022] The power management module includes a power supply circuit, a filter circuit, and a multi-stage voltage conversion module.

[0023] Through the above technical solution: the power management module connects to the external power supply through the power supply circuit and provides safety protection; the filter circuit can filter out voltage ripple and noise interference; and the multi-level voltage conversion module generates different levels of stable voltage to meet the power needs of each module, thereby jointly providing a safe, stable and clean power supply for the mobile shelving system and ensuring the normal operation of each circuit module.

[0024] As a further description of the above technical solution:

[0025] The DC power input interface DC1 of the power supply circuit is connected to the main power line through fuse F1 and reverse connection protection diode D2. The multi-stage voltage conversion module includes a first voltage regulator chip U4 and a second voltage regulator chip U2, which convert the input voltage to VCC_5 and VCC_3.3 respectively. The filter circuit consists of capacitors C1, C4, and C5 and inductor L1, which are connected in parallel to the output terminals of VCC_12 and VCC_5 respectively. The indicator light circuit consists of resistor R1 and LED1 connected in series, and resistor R2 and LED2 connected in series.

[0026] The above technical solution can effectively protect the entire power supply line, realize power access, overcurrent protection and reverse connection protection functions, and display the power status in real time. Together, they realize safety protection, voltage conversion, power filtering and status indication functions, provide a stable and reliable power supply for the mobile shelving system, and at the same time, make it convenient for operators to quickly judge whether the power system is working properly, which facilitates fault diagnosis and maintenance.

[0027] This utility model has the following beneficial effects:

[0028] 1. In this utility model, by adopting a double-layer safety door design, strong current can be effectively isolated to ensure the safety of the operator. It also provides a standard RS485 / CAN interface to realize data communication with the rack, which can obtain the status of the intelligent mobile rack in real time, display feedback information on the locking, unlocking and movement status of the mobile rack, and also has a safety alarm function, so that the system can be maintained and repaired in a timely manner, thereby ensuring the safety of product use.

[0029] 2. This utility model has multiple protection devices such as lightning protection, surge protection, leakage protection, short circuit protection, overload protection, and undervoltage protection, which effectively ensures the electrical safety of the warehouse under various special working conditions. In addition, the system has an intelligent temperature control function, which can automatically start and stop the fan according to the temperature data detected inside the product and the set threshold, thereby intelligently regulating the internal ventilation of the product, ensuring the electrical safety of the equipment and the smooth operation of the system. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall circuit connection of the mobile shelving power monitoring system proposed in this utility model;

[0031] Figure 2 This is a schematic diagram of the power management module circuit of the mobile shelving power monitoring system proposed in this utility model;

[0032] Figure 3 This is a schematic diagram of the circuit connection of the power supply control board of the mobile shelving power monitoring system proposed in this utility model;

[0033] Figure 4 This is a schematic diagram of the circuit connection of the movable column of the mobile shelving unit in the power monitoring system of the mobile shelving unit proposed in this utility model;

[0034] Figure 5 This is a schematic diagram of the electrical component circuit connection of the mobile shelving power monitoring system proposed in this utility model;

[0035] Figure 6 This is a schematic diagram of the power circuit of the mobile shelving power monitoring system proposed in this utility model;

[0036] Figure 7 This is a schematic diagram of the indicator light and electronic lock output circuit of the mobile shelving power monitoring system proposed in this utility model.

[0037] Figure 8 This is a schematic diagram of the interface circuit of the reader module of the mobile shelving power monitoring system proposed in this utility model;

[0038] Figure 9 A schematic diagram of the power supply circuit for the reader module of the mobile shelving power monitoring system proposed in this utility model;

[0039] Figure 10This is a schematic diagram of the MCU core circuit of the mobile shelving power monitoring system proposed in this utility model;

[0040] Figure 11 This is a schematic diagram of the TCP / IP communication interface circuit of the mobile shelving power monitoring system proposed in this utility model;

[0041] Figure 12 This is a schematic diagram of the RS232 communication interface circuit of the mobile shelving power monitoring system proposed in this utility model;

[0042] Figure 13 This is a schematic diagram of the door status signal circuit of the mobile shelving power monitoring system proposed in this utility model. Detailed Implementation

[0043] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0044] Reference Figures 1-13 This utility model provides an embodiment of a mobile shelving power monitoring system, comprising a power management module, an MCU core circuit, a reader / writer module power supply circuit, a reader / writer interface module, a TCP / IP communication interface circuit, an RS232 communication interface circuit, an indicator / electronic lock output circuit, and a door status signal circuit. The MCU core circuit is electrically connected to the power management module, the reader / writer module power supply circuit, the reader / writer interface module, the TCP / IP communication interface circuit, the RS232 communication interface circuit, the indicator / electronic lock output circuit, and the door status signal circuit.

[0045] Specifically, the mobile shelving power monitoring system achieves security through locks and audible / visual alarms on the first-level safety door, with interaction via a touchscreen. The second-level safety door houses circuit breakers and electricity meters for power management and protection. Combined with data acquisition from a time-delay switch board and power box control board, along with RS485 and RS232 communication, it ensures stable operation, centralized management, and remote monitoring of the power system. The touchscreen enables human-machine interaction, displaying real-time power status. Locks are linked to power control, protecting the system and preventing unauthorized access. An air inlet on the left and a fan on the right create a forced airflow, reducing internal component temperature and extending equipment lifespan. The fan features speed feedback and intelligent temperature control for smart ventilation. When the internal temperature exceeds the set range, the system activates the fan to create an airflow, intelligently regulating the internal environment to ensure air circulation, electrical safety, and smooth system operation. An audible and visual alarm can be triggered immediately in case of an anomaly. Upon triggering the first-level alarm, the circuit breaker in the second-level safety door automatically disconnects the faulty circuit. The circuit breaker can quickly disconnect the circuit in case of overload or short circuit to prevent equipment damage. The installed fixed-frame power supply provides power to the fixed-frame panel, power control module, and power box control board. A surge protection module suppresses instantaneous high voltage caused by lightning strikes or grid fluctuations, protecting subsequent circuits and delaying the switching operation. The power supply is 12V, and it can transmit data and communicate with other devices via RS485. Through the power supply control board, it can communicate with the mobile shelving unit via RS485 to achieve real-time transmission and control of power-related data. The power supply control board can also communicate with a serial port display via RS232, enabling data display and interaction, allowing operators to intuitively understand the operation of the power monitoring system. The power supply control board can collect real-time voltage and current data from the 24V switching power supply, and the temperature and humidity acquisition interface can collect ambient temperature and humidity data. The serial port display refers to communication with other devices via a serial port, allowing users to send commands to control the displayed content. The power management module manages and distributes the power supply to the mobile shelving unit, ensuring a stable and appropriate voltage and current supply to all modules and circuits. The MCU core circuit processes and analyzes signals from each module, makes corresponding decisions, and controls other modules to perform corresponding operations. A dedicated power supply circuit for the reader / writer module provides a stable power supply, ensuring its normal operation and enabling the reading and writing of information about items on the shelving unit. The reader / writer interface module allows for connection and communication between the reader / writer module and the MCU core circuit or other related modules. A TCP / IP communication interface circuit enables the mobile shelving unit to communicate with other devices or systems via a network.The RS232 communication interface circuit is used to communicate with devices that have an RS232 interface. The indicator light / electronic lock output circuit controls the indicator lights and the unlocking / unlocking of the electronic lock based on control signals from the MCU core circuit. The door status signal circuit monitors the status of the mobile shelving door in real time—whether the door is open or closed—and transmits the door status signal to the MCU core circuit.

[0046] Reference Figures 1-13 Pin 32 of the main control chip U9 of the MCU core circuit is connected to the power supply circuit of the reader module, and pins 31 and 39 of the main control chip U9 of the MCU core circuit are connected to pins 6 and 7 of the reader interface module, respectively.

[0047] Specifically, by connecting the pins of the main control chip U9 in the MCU core circuit with the power supply circuit and interface module of the reader module, the data of the item tag read by the reader can be obtained, or the information to be written to the tag can be sent to the reader.

[0048] Reference Figures 1-13 Pins 12 and 13 of the main control chip U9 in the MCU core circuit are connected to pins 8 and 9 of the TCP / IP communication interface circuit, respectively; pins 22 and 21 of the main control chip U9 in the MCU core circuit are connected to pins 10 and 9 of the RS232 communication interface circuit, respectively; pins 38, 39, 40, 41, 42, 45, and 46 of the main control chip U9 in the MCU core circuit are connected to pins 7, 6, and 5 of the U1 chip in the indicator / electronic lock output circuit, respectively. Pins 4, 3, 2, and 1 are connected to the main control chip U9 of the MCU core circuit. Pins 16, 17, and 18 are connected to the gate status signal circuits Y1, Y2, and Y3, respectively. Pins 34 and 37 of the main control chip U9 of the MCU core circuit are connected to pins 2 and 3 of the debug interface circuit, respectively. Pin 19 of the main control chip U9 of the MCU core circuit is connected to the communication mode switching switch K1. The communication mode switching switch K1 is pulled up to VCC_3.3 through resistor R18 and grounded through capacitor C20.

[0049] Specifically, the main control chip U9 of the MCU core circuit is connected to the TCP / IP communication interface circuit via its pins, enabling the mobile shelving's status data to be sent to the network and control commands from remote devices to be received. The main control chip U9 is also connected to the RS232 communication interface circuit via its pins, allowing data transmission with devices such as serial screens for local data display and interaction. The main control chip can send control signals to indicator lights, electronic lock output circuits, and reader module power supply circuits via its pins. The door status signal circuit is connected to the main control chip via its pins, inputting the mobile shelving door's open / closed status signal to the main control chip. The main control chip uses these signals to determine the door's status and decide whether to perform the corresponding operation. The main control chip's power pins are connected to the power management module, providing a stable power supply to other connected circuit modules. The main control chip U9's pins can detect the status of the communication mode switch K1, thus determining the system's communication mode. Simultaneously, an RC filter circuit composed of capacitor C20 and resistor R18 filters out high-frequency interference signals that may appear on pin 19.

[0050] Reference Figures 1-13 The power management module includes a power supply circuit, a filter circuit, and a multi-stage voltage conversion module. The DC power input interface DC1 of the power supply circuit is connected to the main power line through a fuse F1 and a reverse connection protection diode D2. The multi-stage voltage conversion module includes a first voltage regulator chip U4 and a second voltage regulator chip U2, which convert the input voltage to VCC_12 and VCC_5 respectively. The filter circuit consists of capacitors C1, C4, and C5 and an inductor L1, which are connected in parallel to the output terminals of VCC_12 and VCC_5 respectively. The indicator circuit consists of resistors R1 and R2 and LED1 and LED2 connected in series.

[0051] Specifically, the DC power input interface DC1 of the power supply circuit can be connected to the main power line via fuse F1. When the circuit is overloaded or short-circuited, the fuse blows, cutting off the circuit and preventing damage to the power management module and other circuits due to overcurrent, ensuring system safety and ensuring that the main power line can stably and safely supply power to the system, providing a foundation for subsequent voltage conversion and circuit operation. The reverse connection protection diode D2 prevents reverse current when the power supply polarity is reversed, avoiding damage to components due to reverse power connection. The first voltage regulator chip U4 of the multi-stage voltage conversion module stably converts the input voltage to VCC_5 output, and the second voltage regulator chip U2 converts the input voltage to VCC_3.3 output. The filter circuit formed by these two chips is connected in parallel to the VCC_12 and VCC_5 output terminals, which can improve the stability and reliability of the system and reduce electromagnetic interference in the power supply line. The resistor limits the current, protecting the LED from being burned out by excessive current, and can also adjust the LED brightness.

[0052] Working Principle: During operation, the first-level security door's lock prevents unauthorized opening, ensuring the safety of equipment and items within the mobile shelving unit. An audible and visual alarm provides timely warnings in case of abnormalities. A touchscreen allows for intuitive viewing of power system status, operation records, and other information, facilitating monitoring and management. Air inlets and fans work together to promote ventilation and heat dissipation, preventing overheating from affecting equipment performance and lifespan. The second-level security door's switching power supply provides basic power to the system. This power is further processed and distributed by a time-delay switch board and the power supply control board. The power supply control board collects data on the 24V switching power supply voltage, current, temperature, and humidity, which can be used to assess the power status. It provides a basis for estimation, fault warning, and environmental monitoring. The power supply control board can collect power safety data such as the input 220V voltage and output 24V switching power supply voltage and current information, as well as environmental data such as temperature and humidity, and display them on the serial port screen. When the delay switch board receives the smoke alarm signal from the intelligent mobile shelving, it can control the intelligent mobile shelving area to automatically cut off the power to ensure safety. At the same time, the delay switch board and the power supply control board adopt RS485 communication to realize data interaction with equipment such as the fixed frame of the intelligent mobile shelving, which facilitates centralized management and remote monitoring. The power supply control board also connects to the serial port screen through RS232 communication, which facilitates local operation and data display.

[0053] By connecting various circuit modules through the pins of the main control chip U9 in the MCU core circuit, modules with different functions such as power management module, reader power supply circuit, reader interface module, and communication interface circuit can be integrated to form a complete mobile shelving control system. This allows the modules to work together through the pins of the main control chip, thereby realizing various functions such as mobile shelving item information management, remote monitoring, and security protection.

[0054] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A mobile shelving power monitoring system, comprising a power management module, an MCU core circuit, a reader / writer module power supply circuit, a reader / writer interface module, a TCP / IP communication interface circuit, an RS232 communication interface circuit, an indicator light / electronic lock output circuit, and a door status signal circuit, characterized in that: The MCU core circuit is electrically connected to the power management module, the reader module power supply circuit, the reader interface module, the TCP / IP communication interface circuit, the RS232 communication interface circuit, the indicator / electronic lock output circuit, and the door status signal circuit.

2. The mobile shelving power monitoring system according to claim 1, characterized in that: Pin 32 of the main control chip U9 in the MCU core circuit is connected to the power supply circuit of the reader module, and pins 31 and 39 of the main control chip U9 in the MCU core circuit are connected to pins 6 and 7 of the reader interface module, respectively.

3. The mobile shelving power monitoring system according to claim 2, characterized in that: Pins 12 and 13 of the main control chip U9 in the MCU core circuit are connected to pins 8 and 9 of the TCP / IP communication interface circuit, respectively.

4. The mobile shelving power monitoring system according to claim 2, characterized in that: Pins 22 and 21 of the main control chip U9 in the MCU core circuit are connected to pins 10 and 9 of the RS232 communication interface circuit, respectively. Pins 38, 39, 40, 41, 42, 45, and 46 of the main control chip U9 in the MCU core circuit are connected to pins 7, 6, 5, 4, 3, 2, and 1 of the U1 chip in the indicator / electronic lock output circuit, respectively.

5. The mobile shelving power monitoring system according to claim 2, characterized in that: Pins 16, 17, and 18 of the main control chip U9 in the MCU core circuit are connected to the gate status signal circuits Y1, Y2, and Y3, respectively. Pins 34 and 37 of the main control chip U9 in the MCU core circuit are connected to pins 2 and 3 of the debug interface circuit, respectively.

6. The mobile shelving power monitoring system according to claim 2, characterized in that: Pin 34 of the main control chip U9 in the MCU core circuit and pin 19 of the main control chip U9 in the MCU core circuit are connected to a communication mode switching switch K1. The communication mode switching switch K1 is pulled up to VCC_3.3 through resistor R18 and grounded through capacitor C20.

7. The mobile shelving power monitoring system according to claim 2, characterized in that: The power management module includes a power supply circuit, a filter circuit, and a multi-stage voltage conversion module.

8. The mobile shelving power monitoring system according to claim 7, characterized in that: The DC power input interface DC1 of the power supply circuit is connected to the main power line through fuse F1 and reverse connection protection diode D2. The multi-stage voltage conversion module includes a first voltage regulator chip U4 and a second voltage regulator chip U2, which convert the input voltage to VCC_5 and VCC_3.3 respectively. The filter circuit consists of capacitors C1, C4, and C5 and inductor L1, which are connected in parallel to the output terminals of VCC_12 and VCC_5 respectively. The indicator light circuit consists of resistor R1 and LED1 connected in series, and resistor R2 and LED2 connected in series.

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