Express cabinet control system and express cabinet

Abstract

The utility model discloses a kind of express cabinet control system and express cabinet, including first switching power supply module, industrial computer, main cabinet control panel, first vice cabinet control panel, at least two second vice cabinet control panels and at least two third vice cabinet control panels. By setting main cabinet control panel and first vice cabinet control panel two-stage control and power supply transfer unit, construct double communication bus, i.

Description

Technical Field

[0001] This utility model relates to the field of logistics and warehousing technology, and in particular to a control system and a parcel locker system. Background Technology

[0002] As an important facility for solving the problem of last-mile delivery in logistics, parcel lockers have been widely used in various locations. Existing parcel lockers typically adopt a structure of a main locker plus several auxiliary lockers, with the main locker controlling and supplying power to the auxiliary lockers through a communication bus.

[0003] However, the aforementioned conventional systems have a significant capacity limitation: a single system can only reliably support a limited number of auxiliary cabinets. When attempting to increase parcel storage capacity by adding auxiliary cabinets, the system often encounters problems such as insufficient power supply to the end auxiliary cabinets, unstable control signals, and a decrease in overall system reliability. These problems essentially stem from the inherent defects of traditional power supply methods, where line losses increase significantly with distance and load, as well as communication conflicts among multiple devices.

[0004] Currently, the industry generally adopts the approach of deploying multiple independent systems to meet capacity requirements, but this has led to new problems such as increased equipment costs, increased floor space, and increased management complexity. Utility Model Content

[0005] This utility model provides a parcel locker control system and parcel locker to solve the problems of high cost and poor reliability of existing parcel lockers when expanding to a large number of secondary lockers.

[0006] A parcel locker control system includes a first switching power supply module, an industrial computer, a main locker control board, a first auxiliary locker control board, at least two second auxiliary locker control boards, and at least two third auxiliary locker control boards. The first switching power supply module is used to connect to an AC power source and output a first supply voltage according to the AC voltage output by the AC power source. The industrial control computer is used to connect to the first communication bus and the second communication bus, and is used to output a first control signal to the first communication bus and output a second control signal to the second communication bus. The main cabinet control board is connected to the first switching power supply module and the first communication bus, and is used to output a second power supply voltage to the first communication bus according to the first power supply voltage and the first control signal. The first auxiliary cabinet control board is connected to the first switching power supply module and the second communication bus, and is used to output a third power supply voltage to the second communication bus according to the first power supply voltage and the second control signal; At least two second auxiliary cabinet control boards are connected to the first communication bus, and each second auxiliary cabinet control board performs a first task according to the second power supply voltage and the first control signal; At least two of the third auxiliary cabinet control boards are connected to the second communication bus, and each of the third auxiliary cabinet control boards performs a second task according to the third power supply voltage and the second control signal.

[0007] Furthermore, the first supply voltage is greater than or equal to 24 volts.

[0008] Furthermore, both the first communication bus and the second communication bus adopt the RS485 communication bus.

[0009] Furthermore, the express locker control system also includes a first adapter; The first adapter is used to connect to the AC power supply and to the industrial control computer, and is used to output a fourth power supply voltage to the industrial control computer according to the AC voltage; the fourth power supply voltage is less than the first power supply voltage.

[0010] Furthermore, the fourth power supply voltage is 12 volts.

[0011] Furthermore, the main control board includes a main control chip, a first voltage conversion chip, and a second voltage conversion chip; The first voltage conversion chip is used to connect to the electromagnetic lock, and is connected to the first switching power supply module and the first communication bus. It is used to output a second power supply voltage to the first communication bus and the electromagnetic lock according to the first power supply voltage. The second voltage conversion chip is connected to the first switching power supply module and the main control chip, and is used to output a fifth power supply voltage to the main control chip according to the first power supply voltage; The main control chip is connected to the first communication bus, the first voltage conversion chip, the second voltage conversion chip, and the electromagnetic lock, and is used to control the first voltage conversion chip, the second voltage conversion chip, and the electromagnetic lock to work according to the first control signal.

[0012] Furthermore, the fifth power supply voltage is 3.3 volts.

[0013] Furthermore, the sleep current of the main control chip is less than 10 microamps, and the maximum operating current of the main control chip is less than 100 microamps; The turn-off current of the first voltage conversion chip is less than 10 microamps, and the quiescent current of the first voltage conversion chip is 200 microamps. The turn-off current of the second voltage conversion chip is less than 5 microamps, and the quiescent current of the second voltage conversion chip is 200 microamps.

[0014] Furthermore, the circuit structure of the main cabinet control board is the same as that of the first auxiliary cabinet control board.

[0015] A parcel locker, including the aforementioned parcel locker control system.

[0016] This utility model embodiment provides a parcel locker control system and a parcel locker. The parcel locker control system includes a first switching power supply module, an industrial computer, a main locker control board, a first auxiliary locker control board, at least two second auxiliary locker control boards, and at least two third auxiliary locker control boards. The first switching power supply module is used to connect to an AC power source and output a first supply voltage based on the AC voltage output by the AC power source. The industrial computer is used to connect to a first communication bus and a second communication bus, and is used to output a first control signal to the first communication bus and a second control signal to the second communication bus. The main locker control board is connected to the first switching power supply module and the first communication bus, and is used to output a second supply voltage to the first communication bus based on the first supply voltage and the first control signal. The first auxiliary locker control board is connected to the first switching power supply module and the second communication bus, and is used to output a second supply voltage to the first communication bus based on the first supply voltage and the first control signal. The system outputs a third power supply voltage to the second communication bus; at least two second auxiliary cabinet control boards are connected to the first communication bus, and each second auxiliary cabinet control board performs a first task according to the second power supply voltage and the first control signal; at least two third auxiliary cabinet control boards are connected to the second communication bus, and each third auxiliary cabinet control board performs a second task according to the third power supply voltage and the second control signal. By setting up a two-level control and power supply relay unit of the main cabinet control board and the first auxiliary cabinet control board, a dual communication bus is constructed, namely the first communication bus and the second communication bus architecture. The traditional single and centralized load is decomposed into two independent and parallel subsystems, thereby fundamentally breaking through the physical limitations of a single bus in terms of load capacity and the number of communication nodes at the system level. This increases the number of auxiliary cabinet control boards that a single system can stably support, directly improving the single-point capacity of the express cabinet. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a parcel locker control system according to one embodiment of the present invention; Figure 2 This is a schematic diagram of the main cabinet control panel in one embodiment of this utility model; Figure 3 This is another schematic diagram of the main cabinet control panel in one embodiment of this utility model; Figure 4 This is another schematic diagram of the main cabinet control panel in one embodiment of this utility model.

[0019] In the diagram: 1. First switching power supply module; 2. Industrial computer; 3. Main cabinet control board; 311. Main control chip; 312. First voltage conversion chip; 313. Second voltage conversion chip; 4. First auxiliary cabinet control board; 5. At least two second auxiliary cabinet control boards; 6. At least two third auxiliary cabinet control boards; 7. First adapter; 8. Second adapter; 9. Hard disk recorder; 10. Network camera; 11. Ethernet switch; 12. Residual current device; 13. Electromagnetic lock. Detailed Implementation

[0020] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0021] It should be understood that this invention can be embodied in various forms and should not be construed as being limited to the embodiments set forth herein. Rather, providing these embodiments will make the disclosure thorough and complete, and will fully convey the scope of this invention to those skilled in the art.

[0022] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention. When used herein, the singular forms “a,” “an,” and “ / the” are also intended to include the plural forms unless the context clearly indicates otherwise. It should also be understood that the terms “comprising” and / or “comprising,” when used in this specification, identify the presence of features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups. When used herein, the term “and / or” includes any and all combinations of the associated listed items.

[0023] To fully understand this utility model, detailed structures and steps will be presented in the following description to illustrate the technical solution proposed by this utility model. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0024] like Figure 1As shown, this embodiment provides a parcel locker control system including a first switching power supply module 1, an industrial computer 2, a main locker control board 3, a first auxiliary locker control board 4, at least two second auxiliary locker control boards 5, and at least two third auxiliary locker control boards 6. The first switching power supply module 1 is used to connect to an AC power source and output a first supply voltage according to the AC voltage output by the AC power source. The industrial computer 2 is used to connect to a first communication bus and a second communication bus and output a first control signal to the first communication bus and a second control signal to the second communication bus. The main locker control board 3 is connected to the first switching power supply module 1 and the first communication bus and outputs a second supply voltage to the first communication bus according to the first supply voltage and the first control signal. The first auxiliary locker control board 4 is connected to the first switching power supply module 1 and the second communication bus and outputs a third supply voltage to the second communication bus according to the first supply voltage and the second control signal. At least two second auxiliary locker control boards 5 are connected to the first communication bus, and each second auxiliary locker control board performs a first task according to the second supply voltage and the first control signal. At least two third auxiliary locker control boards 6 are connected to the second communication bus, and each third auxiliary locker control board performs a second task according to the third supply voltage and the second control signal.

[0025] As an example, the first switching power supply module 1, the industrial computer 2, the main cabinet control board 3, the first auxiliary cabinet control board 4, at least two second auxiliary cabinet control boards 5, and at least two third auxiliary cabinet control boards 6 communicate with each other via two independent first and second communication buses, forming a distributed express locker control system capable of large-scale expansion of auxiliary cabinets. Exemplarily, the main cabinet control board 3, the first auxiliary cabinet control board 4, the at least two second auxiliary cabinet control boards 5, and the at least two third auxiliary cabinet control boards 6 all integrate an MCU and an RS485 transceiver. The industrial computer 2, the main cabinet control board 3, and the at least two second auxiliary cabinet control boards 5 communicate with each other via the first RS485 communication bus. The industrial computer 2, the first auxiliary cabinet control board 4, and the at least two third auxiliary cabinet control boards 6 communicate with each other via the second RS485 communication bus.

[0026] As an example, the first switching power supply module 1 is an AC / DC switching power supply. Its input terminal is connected to a 220V / 50Hz AC mains power supply, and its output terminal stably outputs a first supply voltage in DC form. The first switching power supply module 1 is a flyback or LLC topology and has overvoltage and overcurrent protection functions. Thus, the first switching power supply module 1 converts the unstable mains power into stable, safe, and clean DC power, providing a prerequisite for the reliable operation of all subsequent circuits.

[0027] As an example, industrial computer 2 is an embedded industrial computer (ICC) running a Linux or Windows IoT operating system. Exemplarily, ICC 2 has two independent RS232 serial ports, each connected to an external RS485 converter, forming the physical interface between a first communication bus and a second communication bus. The control software of ICC 2 periodically sends a first control signal data packet (such as a Modbus RTU protocol) containing the target address and instructions to the first communication bus, and a second control signal data packet to the second communication bus. In this example, ICC 2 achieves independent and parallel management of the first and second communication buses, avoiding bus contention and ensuring efficient and real-time instruction delivery.

[0028] As an example, the main control board 3 also integrates a first voltage conversion circuit. The main control board 3 is directly connected to the output terminal of the first switching power supply module 1 via a wire to receive the first power supply voltage. At the same time, its RS485 transceiver is connected to the first communication bus to receive the first control signal. Based on the received first control signal, the main control board 3 controls its own state on the one hand, and drives the first voltage conversion circuit on the other hand to generate a second power supply voltage and couple it to the power line of the first communication bus.

[0029] As an example, the first auxiliary cabinet control board 4 is symmetrical to the main cabinet control board 3 in terms of hardware architecture. The first auxiliary cabinet control board 4 also integrates a second voltage conversion circuit. Based on the received second control signal, the first auxiliary cabinet control board 4 controls its own state on the one hand, and drives the second voltage conversion circuit on the other hand to generate a third power supply voltage and couple it to the power line of the second communication bus, thereby realizing the horizontal expansion of the express cabinet control system, increasing the number of first auxiliary cabinet control boards 4, and thus increasing the total number of auxiliary cabinets that the express cabinet control system can support.

[0030] As an example, the second auxiliary cabinet control board is a terminal control unit installed in each auxiliary cabinet. It is connected in parallel to the first communication bus via terminal blocks, directly obtaining the second power supply voltage from the bus to power its MCU and listening for the first control signal. When the address of the data packet parsed by the MCU matches the address set by its own DIP switch, it drives the I / O port to execute the first task, such as controlling a MOSFET switch to conduct for 200ms, thereby driving the 12V electromagnetic lock to open the corresponding cabinet door. In this example, the second auxiliary cabinet control board has a simple structure, requires no separate wiring for power supply, and can use low-power MCUs and electronic components, reducing the cost and complexity of a single node.

[0031] As an example, the third auxiliary cabinet control board has the same hardware as the second auxiliary cabinet control board, differing only in its address and the bus it connects to. It draws power and receives commands from the second communication bus to perform a second task (such as controlling the opening and closing of the auxiliary cabinet door). The hardware standardization of the second and third auxiliary cabinet control boards facilitates production and maintenance, reduces supply chain costs, and effectively balances the load by distributing them across different buses.

[0032] In this embodiment, the express locker control system includes a first switching power supply module 1, an industrial computer 2, a main locker control board 3, a first auxiliary locker control board 4, at least two second auxiliary locker control boards 5, and at least two third auxiliary locker control boards 6. The first switching power supply module 1 is used to connect to an AC power source and output a first supply voltage based on the AC voltage output by the AC power source. The industrial computer 2 is used to connect to a first communication bus and a second communication bus, and is used to output a first control signal to the first communication bus and a second control signal to the second communication bus. The main locker control board 3 is connected to the first switching power supply module 1 and the first communication bus, and is used to output a second supply voltage to the first communication bus based on the first supply voltage and the first control signal. The first auxiliary locker control board 4 is connected to the first switching power supply module 1 and the second communication bus, and is used to output a second supply voltage based on the first supply voltage and the second control signal. The system outputs a third power supply voltage to the second communication bus; at least two second auxiliary cabinet control boards 5 are connected to the first communication bus, and each second auxiliary cabinet control board performs a first task according to the second power supply voltage and the first control signal; at least two third auxiliary cabinet control boards 6 are connected to the second communication bus, and each third auxiliary cabinet control board performs a second task according to the third power supply voltage and the second control signal. By setting up a two-level control and power supply relay unit of the main cabinet control board 3 and the first auxiliary cabinet control board 4, a dual communication bus is constructed, namely the first communication bus and the second communication bus architecture. The traditional single and centralized load is decomposed into two independent and parallel subsystems, thereby fundamentally breaking through the physical limitations of a single bus in terms of load capacity and the number of communication nodes at the system level. This increases the number of auxiliary cabinet control boards that a single system can stably support, directly improving the single-point capacity of the express cabinet.

[0033] In one embodiment, the first supply voltage is greater than or equal to 24 volts. In this embodiment, the first switching power supply module 1 outputs a higher first supply voltage (greater than or equal to 24 volts) to the main cabinet control board 3 and the first auxiliary cabinet control board 4. According to the power calculation formula, power P = voltage V * current I, when the power is constant, the higher the voltage, the lower the current. High-voltage transmission is used to reduce the current value transmitted on the first and second communication buses, thereby reducing the voltage drop and power loss generated in the line resistance, and thus enabling the power to be transmitted further. This ensures that at least two second auxiliary cabinet control boards 5 and at least two third auxiliary cabinet control boards 6 connected to the ends of the two buses can obtain stable and sufficient second and third supply voltages, effectively solving the problem that the end auxiliary cabinets cannot work normally due to insufficient power supply.

[0034] In one embodiment, both the first and second communication buses use RS485 communication buses. In this embodiment, both the first and second communication buses employ the standard RS485 communication protocol. Physically, a four-core shielded twisted-pair cable is used, with one pair of twisted pairs used for differential signal transmission (A+, B-) and the other pair used for power transmission (VCC, GND). The multi-point communication feature of the RS485 bus supports up to 32 or more auxiliary control boards connected in parallel on a single bus.

[0035] In one embodiment, the express locker control system further includes a first adapter 7; the first adapter 7 includes a second switching power supply module; the first adapter 7 is used to connect to an AC power source and is connected to an industrial control computer 2, and is used to output a fourth power supply voltage to the industrial control computer 2 according to the AC voltage; the fourth power supply voltage is less than the first power supply voltage. Further, the fourth power supply voltage is 12 volts. In this embodiment, a separate first adapter 7 with a more suitable voltage is provided for the industrial control computer 2, achieving functional isolation and improving the stability of the express locker control system.

[0036] In one embodiment, such as Figures 2 to 4 As shown, the main control board 3 includes a main control chip 311, a first voltage conversion chip 312, and a second voltage conversion chip 313. The first voltage conversion chip 312 is used to connect to the electromagnetic lock 13, and is connected to the first switching power supply module 1 and the first communication bus. It is used to output a second power supply voltage to the first communication bus and the electromagnetic lock 13 according to the first power supply voltage. The second voltage conversion chip 313 is connected to the first switching power supply module 1 and the main control chip 311. It is used to output a fifth power supply voltage to the main control chip 311 according to the first power supply voltage. The main control chip 311 is connected to the first communication bus, the first voltage conversion chip 312, the second voltage conversion chip 313, and the electromagnetic lock 13. It is used to control the operation of the first voltage conversion chip 312, the second voltage conversion chip 313, and the electromagnetic lock 13 according to the first control signal.

[0037] As an example, the main control board 3 also includes an RS485 transceiver. The main control chip 311 is connected to the first communication bus through the RS485 transceiver to communicate with the industrial computer 2.

[0038] As an example, this fifth supply voltage is used to power the main control chip 311 to ensure its normal operation. Preferably, the fifth supply voltage is 3.3V.

[0039] As an example, the first voltage conversion chip 312 and the second voltage conversion chip 313 include a DC-DC conversion circuit or a low-dropout linear regulator circuit to achieve voltage conversion.

[0040] As an example, such as Figure 3 The diagram shows the peripheral circuit corresponding to the first voltage conversion chip 312, where device U13 is the first voltage conversion chip 312, and its EN pin is connected to the Open Power pin of the main control chip. Figure 4 The diagram shows the peripheral circuit corresponding to the second voltage conversion chip 313, where device U14 is the second voltage conversion chip 313.

[0041] As an example, the main control chip 311 has a sleep operating current of less than 10 microamps and a maximum operating current of less than 100 microamps; the first voltage conversion chip 312 has a turn-off current of less than 10 microamps and a static current of 200 microamps; the second voltage conversion chip 313 has a turn-off current of less than 5 microamps and a static current of 200 microamps, in order to reduce the power consumption of the main cabinet control board 3 and thereby improve the expansion capability of the number of auxiliary cabinets in the express cabinet control system.

[0042] For example, the main control chip 311 uses a low-power GD32L233RCT6 chip. The main control chip 311 consumes less than 10uA in sleep mode and less than 100uA in working mode. In contrast, the main control chip 311 in related technologies uses an STM32F407 chip, which consumes more than 100mA. Therefore, the use of the low-power GD32L233RCT6 chip in this application reduces the power consumption of the main cabinet control board 3 by more than 90%.

[0043] For example, the first voltage conversion chip 312 uses a low-power SY8205FCC chip, and the second voltage conversion chip 313 uses a low-power SY8301ABC chip.

[0044] In this embodiment, the circuit structure of the main cabinet control board 3 is the same as that of the first auxiliary cabinet control board 4. By using low-power GD32L233RCT6 chips, low-power SY8205FCC chips, and low-power SY8301ABC chips, the power consumption of the main cabinet control board 3 and the first auxiliary cabinet control board 4 is reduced by more than 50%. Furthermore, the circuit structures of the main cabinet control board 3, the first auxiliary cabinet control board 4, at least two second auxiliary cabinet control boards 5, and at least two third auxiliary cabinet control boards 6 are all identical, that is, control boards with the same structure are used. It should be noted that the main control chip 311 uses a low-power GD32L233RCT6 chip, the first voltage conversion chip 312 uses a low-power SY8205FCC chip, and the second voltage conversion chip 313 uses a low-power SY8301ABC chip. Actual measurements show that the power consumption of the main cabinet control board 3, the first, second, and third auxiliary cabinet control boards is all 0.15W. Compared with the 2.4W power consumption of the existing express cabinet control boards, the power consumption of the main cabinet control board 3, the first, second, and third auxiliary cabinet control boards in this application is reduced by 93%, making the main cabinet control board 3, the first, second, and third auxiliary cabinet control boards low-power control boards, thereby improving the expansion capability of the number of auxiliary cabinets in the express cabinet control system.

[0045] In one embodiment, the express delivery locker control system further includes a second adapter 8, a hard disk video recorder 9, a network camera 10, and an Ethernet switch 11. The network camera 10 is connected to a first adapter 7 and is used to monitor a target area and output first camera data according to a fourth power supply voltage. The Ethernet switch 11 is connected to a second adapter 8, the network camera 10, an industrial computer 2, and the hard disk video recorder 9, and is used to output second camera data to the hard disk video recorder 9 or read second camera data from the hard disk video recorder 9 to the industrial computer 2 according to a fifth power supply voltage output by the second adapter 8 and the first camera data. The hard disk video recorder 9 is connected to a first adapter 7 and is used to store the second camera data according to the fourth power supply voltage. For example, the fifth power supply voltage is, for example, 5 volts. For example, the second adapter 8 includes a third switching power supply module.

[0046] In this embodiment, the security function is achieved through the hard disk recorder 9, the network camera 10, and the Ethernet switch 11. The network camera 10, the hard disk recorder 9, and the Ethernet switch 11 are powered independently by the second switching power supply and the third switching power supply, respectively, to avoid the impact on the power supply of the industrial control computer 2 due to the large starting current of the equipment.

[0047] In one embodiment, the express delivery locker control system further includes a residual current device (RCD) 12. The input terminal of the RCD 12 is connected to an AC power supply, and the output terminal of the RCD 12 is connected to a first switching power supply module 1 and a first adapter 7. In this embodiment, a RCD 12 with a rated current of 16A is connected in series at the AC mains input terminal. Its live and neutral input terminals are connected to the mains power, and its output terminals are respectively connected to the AC input terminals of the first switching power supply module 1 and the first adapter 7 to provide personal safety and electrical fire protection. When the express delivery locker control system experiences leakage due to moisture, damage, or other reasons, the RCD 12 can cut off the main power supply in a very short time (milliseconds).

[0048] This embodiment provides a parcel locker, including the parcel locker control system described above.

[0049] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. A control system for express delivery lockers, characterized in that, It includes a first switching power supply module, an industrial computer, a main cabinet control board, a first auxiliary cabinet control board, at least two second auxiliary cabinet control boards, and at least two third auxiliary cabinet control boards; The first switching power supply module is used to connect to an AC power source and output a first supply voltage according to the AC voltage output by the AC power source. The industrial control computer is used to connect to the first communication bus and the second communication bus, and is used to output a first control signal to the first communication bus and output a second control signal to the second communication bus. The main cabinet control board is connected to the first switching power supply module and the first communication bus, and is used to output a second power supply voltage to the first communication bus according to the first power supply voltage and the first control signal. The first auxiliary cabinet control board is connected to the first switching power supply module and the second communication bus, and is used to output a third power supply voltage to the second communication bus according to the first power supply voltage and the second control signal; At least two second auxiliary cabinet control boards are connected to the first communication bus, and each second auxiliary cabinet control board performs a first task according to the second power supply voltage and the first control signal; At least two of the third auxiliary cabinet control boards are connected to the second communication bus, and each of the third auxiliary cabinet control boards performs a second task according to the third power supply voltage and the second control signal.

2. The express delivery locker control system according to claim 1, characterized in that, The first supply voltage is greater than or equal to 24 volts.

3. The express delivery locker control system according to claim 1, characterized in that, Both the first communication bus and the second communication bus use RS485 communication bus.

4. The express delivery locker control system according to claim 1, characterized in that, The express delivery locker control system also includes a first adapter; The first adapter is used to connect to the AC power supply and to the industrial control computer, and is used to output a fourth power supply voltage to the industrial control computer according to the AC voltage; the fourth power supply voltage is less than the first power supply voltage.

5. The express delivery locker control system according to claim 4, characterized in that, The fourth power supply voltage is 12 volts.

6. The locker control system of claim 1, wherein, The main cabinet control board includes a main control chip, a first voltage conversion chip, and a second voltage conversion chip. The first voltage conversion chip is used to connect to the electromagnetic lock, and is connected to the first switching power supply module and the first communication bus. It is used to output a second power supply voltage to the first communication bus and the electromagnetic lock according to the first power supply voltage. The second voltage conversion chip is connected to the first switching power supply module and the main control chip, and is used to output a fifth power supply voltage to the main control chip according to the first power supply voltage; The main control chip is connected to the first communication bus, the first voltage conversion chip, the second voltage conversion chip, and the electromagnetic lock, and is used to control the first voltage conversion chip, the second voltage conversion chip, and the electromagnetic lock to work according to the first control signal.

7. The locker control system of claim 6, wherein, The fifth power supply voltage is 3.3 volts.

8. The express delivery locker control system according to claim 6, characterized in that, The main control chip has a sleep operating current of less than 10 microamps and a maximum operating current of less than 100 microamps. The turn-off current of the first voltage conversion chip is less than 10 microamps, and the quiescent current of the first voltage conversion chip is 200 microamps. The turn-off current of the second voltage conversion chip is less than 5 microamps, and the quiescent current of the second voltage conversion chip is 200 microamps.

9. The express delivery locker control system according to claim 6, characterized in that, The circuit structure of the main cabinet control board is the same as that of the first auxiliary cabinet control board.

10. A parcel locker, characterized by, The parcel locker control system as claimed in any one of claims 1 to 9.

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