A power management device and method for high-power scientific research instruments based on the internet of things

Abstract

This invention provides a power management device and method for high-power scientific instruments based on the Internet of Things (IoT), relating to the field of power management technology. The device includes an IoT management platform, a low-current power controller, and multiple high-power scientific instruments. The low-current power controller is wirelessly connected to the IoT management platform and is connected in series in the instrument power supply circuit module of the high-power scientific instruments. A safety threshold range for the instruments is set in the low-current power controller, adjusting the load current during instrument operation to match the load current of the low-current power controller with the operating current of the high-power scientific instruments. A safety protection unit is set in the instrument power supply circuit module to further ensure the stable operation of the instruments, achieving safe and efficient IoT control of high-power scientific instruments and improving their reliability and stability.

Description

Technical Field

[0001] This application relates to the field of instrument Internet of Things (IoT) management technology, specifically to a power management device and method for high-power scientific research instruments based on the Internet of Things. Background Technology

[0002] With the continuous advancement of intelligent construction of scientific research platforms, Internet of Things (IoT) technology is gradually being widely applied to various applications such as monitoring the operational status of experimental instruments and managing user permissions. For small and medium-sized scientific research instruments controlled by computers, various application functions can be realized by directly connecting the computer to the IoT management system. For high-power scientific research instruments without built-in control, a power controller is connected in series in the power supply circuit of the high-power scientific research instrument. The IoT platform controls the power management of the high-power scientific research instrument through the power controller to realize the application functions of controlling the high-power scientific research instrument.

[0003] Existing conventional power controllers typically have a load current threshold below 10A, making them unsuitable for direct adaptation to high-power scientific instruments exceeding 10A. Replacing with a high-current power controller directly presents stringent requirements for wiring specifications and terminals due to limited internal installation space in scientific instruments, making it unsuitable for large-scale IoT-based upgrades of existing high-power scientific instruments. While existing conventional low-current controllers can fit within the internal installation space of high-power scientific instruments at a lower cost, the operating current of these instruments is generally above 10A. Low-current controllers cannot be directly adapted to high-power instruments, and their actual operating current far exceeds the rated load range of low-current controllers, causing overheating of internal components and hindering the intelligent upgrading of scientific instruments. Summary of the Invention

[0004] 1) Technical problems to be solved Therefore, the present invention provides a power management device and method for high-power scientific research instruments based on the Internet of Things, which solves the various problems mentioned above.

[0005] (ii) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a power management device for high-power scientific instruments based on the Internet of Things, the device comprising an Internet of Things management platform, a low-current power controller, and multiple high-power scientific instruments; The IoT management platform is used to issue switch commands, store authorized user information, and record instrument usage status. The switch commands are control commands that control the power supply circuit module of each high-power scientific instrument to be powered on and off. The authorized user information includes the authorized user's identity and the permission to trigger the use of the instrument. The instrument usage status includes the identification code of each high-power scientific instrument, the instrument usage time, and the instrument function usage information. The IoT management platform is connected to the permission identification terminal, which identifies the authorized user information and triggers the IoT management platform to issue a switch command. The low-current power controller is wirelessly connected to the IoT management platform. The low-current power controller is connected in series with each of the instrument power supply circuit modules and receives the switching commands from the IoT management platform to control the power supply circuit modules of the instruments. Each instrument power supply circuit module includes a buck converter and an electrical control device. Based on the instrument's usage time and functional information, a corresponding safety threshold range is set in the buck converter. This safety threshold range is less than the load operating current of the low-current power controller. The buck converter reduces the operating current of the high-power scientific instrument by decreasing the pulse width, thus matching the operating current of the high-power scientific instrument with the load operating current of the low-current power controller. The electrical control device receives switching commands from the low-current power controller. When the operating current of the high-power scientific instrument is less than the safety threshold range, the switching command controls the electrical control device to close, thereby achieving power management for the high-power scientific instrument.

[0006] Furthermore, the IoT management platform is equipped with an IoT communication protocol for issuing switch commands. The switch commands include instrument identification, switch information, and verification information. The IoT management platform assigns a unique instrument code to each high-power scientific instrument and sends switch information to turn on or off the power through the instrument identification. The verification information confirms whether the switch information has been completely sent.

[0007] Furthermore, the low-current power controller receives the switching command issued by the IoT management platform. The low-current power controller identifies the number of data bits in the data frame of the switching command, extracts the instrument identifier from the switching command, compares it with the instrument identifier codes of multiple high-power scientific instruments, and determines the high-power scientific instrument to which the switching command was issued. If they match, the low-current power controller parses the switching information and transmits the switching command to the instrument power supply circuit module of the high-power scientific instrument.

[0008] Furthermore, the safety threshold is less than 10A.

[0009] Furthermore, the electrical control device includes a Bluetooth relay.

[0010] Furthermore, the instrument power supply circuit module also includes a safety protection unit, which includes a fuse connected in series in the power supply circuit. The rated current of the fuse is set to be greater than the operating current and starting inrush current of the power supply circuit, while being less than the maximum safe current of the power supply circuit, to prevent the fuse from blowing when the high-power scientific instrument starts up or operates.

[0011] Furthermore, the IoT management platform is connected to an access control terminal, which is used to identify the authorized user information and trigger the IoT management platform to issue a switch command. The low-current power controller receives the switch command and controls the high-power scientific instrument to be powered on or off. The access control terminal is a barcode scanner or a card reader.

[0012] This invention discloses a power management method for high-power scientific instruments based on the Internet of Things (IoT), which connects the IoT management platform to the permission identification terminal and records authorized user information in the IoT management platform. The permission recognition terminal verifies the identity through the authorized user information. The authorized user issues a switch command through the Internet of Things management platform. The low-current power controller receives the switch command and transmits the switch command to the instrument power supply circuit module in the high-power scientific instrument. The instrument power supply circuit module is set with a safe threshold range for the operation of high-power scientific instruments. The safe threshold range is less than the load operating current of the low-current power controller, so that the operating current of the high-power scientific instruments is adapted to the load operating current of the low-current power controller, thereby controlling the operation of the high-power scientific instruments. After the high-power scientific instrument has finished operating, the authorized user verifies the authorized user information again through the permission identification terminal, the instrument power supply circuit module disconnects the power, and the Internet of Things management platform records the usage data of the high-power scientific instrument.

[0013] (iii) Beneficial effects: Compared with the prior art, this invention has the following beneficial effects: This invention discloses a power management device and method for high-power scientific instruments based on the Internet of Things (IoT). The power management device includes an IoT management platform, a low-current power controller, and multiple high-power scientific instruments. The low-current power controller is wirelessly connected to the IoT management platform and is connected in series with the instrument power supply circuit module of the high-power scientific instruments. The power management device has a simple connection circuit. The operating current threshold of the instrument is set in the step-down converter, and the load current of the instrument during operation is adjusted to make the load current of the low-current power controller match the operating current of the high-power scientific instruments, thereby avoiding the risk of overload and short circuit in high-current control.

[0014] A safety protection unit is set up in the instrument power supply circuit module. The safety protection unit detects voltage fluctuations and current overloads in the power supply circuit, further ensuring the stable operation of high-power scientific instruments, realizing safe and efficient Internet of Things control of high-power scientific instruments, and improving the reliability and stability of high-power scientific instruments. Attached Figure Description

[0015] Figure 1 This is a flowchart of the overall modules in a high-power scientific instrument power management device based on the Internet of Things according to the present invention. Figure 2 A flowchart of a power management method for high-power scientific instruments based on the Internet of Things provided in an embodiment of the present invention. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the present invention clearer, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0017] This invention discloses a power management device and method for high-power scientific instruments based on the Internet of Things (IoT). The device includes an IoT management platform, a low-current power controller, and multiple high-power scientific instruments. The low-current power controller is wirelessly connected to the IoT management platform and also connected to the instrument power supply circuit module of the high-power scientific instruments. This power management device only modifies the power supply circuit of the instrument power supply circuit module without changing the core power supply circuit of the high-power scientific instrument host. It sets the safety threshold range of the instrument in the step-down converter and adjusts the load current of the instrument during operation, so that the load current of the low-current power controller is adapted to the operating current of the high-power scientific instruments, thereby avoiding the risk of overload and short circuit in high-current control.

[0018] like Figure 1As shown, this invention discloses a power management device for high-power scientific instruments based on the Internet of Things (IoT). The device includes an IoT management platform, a low-current power controller, and multiple high-power scientific instruments. The IoT management platform is used to issue switching commands, store authorized user information, and record the instrument usage status. The switching commands are control commands that control the power supply circuit module of each high-power scientific instrument to be powered on and off. The authorized user information includes the authorized user's identity and the permission to trigger the use of the instrument. The instrument usage status includes the identification code of each high-power scientific instrument, the instrument usage time, and the instrument function usage information.

[0019] The low-current power controller is wirelessly connected to the IoT management platform. It is connected in series with each instrument's power supply circuit module and receives switching commands from the IoT management platform to control the power supply circuit module's power on and off.

[0020] Each instrument power supply circuit module includes a buck converter and an electrical control device. The buck converter sets a corresponding safety threshold range based on the instrument's usage time and function information. The safety threshold range is lower than the load operating current of the low-current power controller. The buck converter reduces the operating current of the high-power scientific instrument by decreasing the pulse width, so that the operating current of the high-power scientific instrument is compatible with the load operating current of the low-current power controller. The electrical control device receives the switching command from the low-current power controller. When the operating current of the high-power scientific instrument is lower than the safety threshold range, the electrical control device is closed to realize the power management of the high-power scientific instrument.

[0021] The IoT management platform is equipped with an IoT communication protocol for issuing switch commands. The switch commands include instrument identification, switch information, and verification information. The IoT management platform assigns a unique instrument code to each high-power scientific instrument and sends switch information to turn on or off the power through the instrument identification. The verification information confirms whether the switch information has been sent completely.

[0022] In this embodiment, the IoT management platform issues a switch command, which includes instrument identification, switch information, and verification information. First, each high-power scientific instrument is assigned an instrument code. When issuing a switch command, the instrument code information is issued first to distinguish the operation of different high-power scientific instruments. Then, the power-on or power-off information is issued. Finally, in the switch command, the verification information with odd and even numbers is used to confirm whether the command information has been sent to the low-current power controller. If the verification information ends in an odd number, it confirms that the command information has been sent correctly. If the verification code ends in an even number, it indicates that the information has been sent incorrectly and has not been sent to the low-current power controller.

[0023] The low-current power controller receives switching commands from the IoT management platform. It identifies the number of data bits in the data frame of the switching command, extracts the instrument identifier from the switching command, and compares it with the instrument identifier codes of multiple high-power scientific instruments to determine the high-power scientific instrument to which the switching command was issued. If they match, the low-current power controller parses the switching information and transmits the switching command to the instrument power supply circuit module of the high-power scientific instrument.

[0024] In the power supply circuit module, the step-down converter sets a corresponding safety threshold range based on the instrument's usage time and function information. This safety threshold range decreases as the instrument's usage time increases. The low-current power controller only controls the on / off state of the instrument's function information. The step-down converter reduces the operating current of the high-power scientific instrument by decreasing the pulse width, ensuring that the operating current of the high-power scientific instrument matches the load current of the low-current power controller. The electrical control device receives switching commands from the low-current power controller. When the operating current of the high-power scientific instrument is less than the safety threshold range, it controls the electrical control device to close, thus achieving power management for the high-power scientific instrument. This safety threshold is less than 10A, and the electrical control device includes a Bluetooth relay.

[0025] The instrument power supply circuit module also includes a safety protection unit, which includes a fuse and a voltage regulator. The fuse is connected in series in the power supply circuit. The rated current of the fuse is set to be greater than the operating current and starting inrush current of the power supply circuit, while being less than the maximum safe current of the power supply circuit, to prevent the fuse from blowing when the high-power scientific instrument starts up or is in operation.

[0026] The voltage regulator in the safety protection unit is connected in parallel with the fuse. The voltage regulator adjusts for abnormal conditions such as voltage fluctuations and current overloads in the power supply circuit.

[0027] The IoT management platform connects to the access control terminal, which is used to identify authorized user information and trigger the operation of the low-current power controller. The low-current power controller controls the high-power scientific research instruments to power on or off. The access control terminal is a barcode scanner or a card reader.

[0028] like Figure 2 As shown, this invention provides a power management method for high-power scientific instruments based on the Internet of Things (IoT), used to implement a power management device for high-power scientific instruments based on the IoT. Connect the IoT management platform to the access control terminal and enter authorized user information into the IoT management platform; The access control terminal verifies the identity of authorized users through authorized user information. Authorized users issue switching commands through the IoT management platform. The low-current power controller receives the switching commands and transmits them to the instrument power supply circuit module in the high-power scientific instrument. In the instrument power supply circuit module, a safe threshold range is set for the operation of high-power scientific instruments. The safe threshold range is less than the load operating current of the low-current power controller, so that the operating current of the high-power scientific instruments is matched with the load operating current of the low-current power controller, thereby controlling the operation of the high-power scientific instruments. After the high-power scientific instrument has finished operating, the authorized user verifies the authorized user information again through the permission identification terminal, the instrument's power supply circuit module disconnects the power, and the Internet of Things management platform records the usage data of the high-power scientific instrument.

[0029] In this embodiment, the IoT management platform records the usage time of high-power scientific research instruments, user information, and usage billing data. The power management method includes three steps: circuit troubleshooting and modification, system networking, and access control and operation management.

[0030] Step 1: Circuit troubleshooting and modification Disassemble the control panel of the high-power scientific instrument, trace the instrument's power supply circuit, determine its input voltage and operating current parameters, and confirm that the operating current value of the high-power scientific instrument is less than 10A; connect the low-current power controller in series to the instrument's power supply circuit, while keeping the main power supply circuit unchanged; add a fuse and a voltage regulator module to the instrument's power supply circuit to form a safety protection unit.

[0031] Step 2: System Network Setup Connect the low-current power supply controller and the access control terminal to the IoT management network to ensure normal communication between the low-current power supply controller and the IoT management platform, and between the access control terminal and the IoT management platform; enter authorized user information and set controller trigger rules in the IoT management platform.

[0032] Step 3: Access Control and Operation Management After authorized users complete identity verification through the access control terminal, the IoT management platform sends a power-on command to the low-current power controller, connecting the high-power scientific instrument to the power supply, allowing the user to operate the instrument normally. After use, the IoT management platform can automatically send a power-off command, or the user can manually send a power-off command, causing the low-current power controller to cut off the power to the instrument, putting it into an inoperable state. The IoT management platform records data such as instrument usage time, user information, and usage billing in real time.

[0033] The high-power scientific research instrument in this invention is a scientific research device that is set and started by means of an instrument or operation panel. The high-power scientific research instrument includes, but is not limited to, Beckman L-100XP ultracentrifuge, electron microscope, and autoclave.

[0034] In another embodiment, taking the Beckman L-100XP ultracentrifuge as an example, the power management method for high-power scientific instruments based on the Internet of Things of the present invention is as follows: Step 1: Device Setup A small-current IoT power controller with a load current threshold of 5A was selected, and a safety protection unit was formed by a fuse with a rated current of 3A and a 220V voltage regulator module. The campus card was selected as the access control terminal. The IoT management platform, the small-current power controller and multiple high-power scientific instruments were networked with the existing IoT management platform of the laboratory.

[0035] Step 2: Circuit Modification The control panel of the Beckman L-100XP ultracentrifuge was disassembled, and the instrument's operating current was found to be 1.8A, meeting the controller's load requirements. A low-current power controller was connected in series to the instrument's power supply circuit module, keeping the main unit's power supply line unchanged. A fuse and a voltage regulator module were connected in series at the input of the low-current power controller, and an insulating protective cover was added to the controller's casing. This invention uses a conventional low-current power controller, eliminating the need to modify the existing laboratory wiring, significantly reducing the cost of upgrading high-power instruments to the Internet of Things (IoT). The low-current power controller used in this embodiment is the DYKZ-V2 IoT intelligent power controller, which saves at least five times the cost compared to using a high-current controller that directly controls the AC power supply.

[0036] Step 3: System Debugging Three authorized users were registered on the IoT management platform, and the rule was set to "the controller powers on and the instrument powers on after the campus card verification is successful." The instrument lights up normally within 0.5 seconds, and the centrifuge parameters can be set and started. Unauthorized users do not respond when swiping their campus cards, and the instrument remains powered off. After use, swiping the campus card again automatically powers off the controller, the instrument shuts down, and the centrifuge cannot be operated again. During the one-month trial operation, the device operated without faults, and the performance of the centrifuge main unit was not affected in any way.

[0037] This invention discloses a power management device and method for high-power scientific instruments based on the Internet of Things (IoT). A low-current power controller is wirelessly connected to an IoT management platform and connected in series in the instrument's power supply circuit module. This power management device only modifies the power supply circuit within the instrument's power supply circuit module, without altering the core power supply circuit of the high-power scientific instrument's host. A safety threshold range is set in the low-current power controller, adjusting the instrument's load current to match the controller's load current with the high-power scientific instrument's operating current, thus avoiding the risks of overload and short circuits in high-current control. Furthermore, a safety protection unit is included to further ensure stable equipment operation and reduce the cost of IoT-based upgrades for high-power instruments. This invention, by modifying the power management device of a high-power scientific instrument using a low-current controller, not only meets the high-precision requirements of low-current mode but also enables the electronic load system to have high adaptability and reliability in high-current mode. It achieves safe and efficient IoT control of high-power scientific instruments, improving their reliability and stability.

[0038] It should be noted that the numerous details included in the above description are merely illustrative of the invention and not intended to limit it. In other embodiments of the invention, the method may have more, fewer, or different steps, and the order, inclusion, function, etc., of the steps may differ from those described and illustrated.

Claims

1. A power management device for high-power scientific research instruments based on the Internet of Things, characterized in that, The device includes an Internet of Things management platform, a low-current power controller, and multiple high-power scientific research instruments. The IoT management platform is used to issue switch commands, store authorized user information, and record instrument usage status. The switch commands are control commands that control the power supply circuit module of each high-power scientific instrument to be powered on and off. The authorized user information includes the authorized user's identity and the permission to trigger the use of the instrument. The instrument usage status includes the identification code of each high-power scientific instrument, the instrument usage time, and the instrument function usage information. The IoT management platform is connected to the permission identification terminal, which identifies the authorized user information and triggers the IoT management platform to issue a switch command. The low-current power controller is wirelessly connected to the IoT management platform. The low-current power controller is connected in series with each of the instrument power supply circuit modules and receives the switching commands from the IoT management platform to control the power supply circuit modules of the instruments. Each instrument power supply circuit module includes a buck converter and an electrical control device. Based on the instrument's usage time and functional information, a corresponding safety threshold range is set in the buck converter. This safety threshold range is less than the load operating current of the low-current power controller. The buck converter reduces the operating current of the high-power scientific instrument by decreasing the pulse width, thus matching the operating current of the high-power scientific instrument with the load operating current of the low-current power controller. The electrical control device receives switching commands from the low-current power controller. When the operating current of the high-power scientific instrument is less than the safety threshold range, the switching command controls the electrical control device to close, thereby achieving power management for the high-power scientific instrument.

2. The power management device for high-power scientific research instruments based on the Internet of Things according to claim 1, characterized in that, The IoT management platform is equipped with an IoT communication protocol for issuing switch commands. The switch commands include instrument identification, switch information, and verification information. The IoT management platform assigns a unique instrument code to each high-power scientific instrument and sends switch information to turn on or off the power through the instrument identification. The verification information confirms whether the switch information has been sent completely.

3. The power management device for high-power scientific research instruments based on the Internet of Things according to claim 2, characterized in that, The low-current power controller receives the switching command issued by the IoT management platform. The low-current power controller identifies the number of data bits in the data frame of the switching command, extracts the instrument identifier from the switching command, compares it with the instrument identifier codes of multiple high-power scientific instruments, and determines the high-power scientific instrument to which the switching command was issued. If they match, the low-current power controller parses the switching information and transmits the switching command to the instrument power supply circuit module of the high-power scientific instrument.

4. The power management device for high-power scientific research instruments based on the Internet of Things according to claim 1, characterized in that, The safety threshold is less than 10A.

5. A power management device for high-power scientific research instruments based on the Internet of Things according to claim 1, characterized in that, The electrical control device includes a Bluetooth relay.

6. The power management device for high-power scientific research instruments based on the Internet of Things according to claim 1, characterized in that, The instrument power supply circuit module also includes a safety protection unit, which includes a fuse connected in series in the power supply circuit. The rated current of the fuse is set to be greater than the operating current and starting inrush current of the power supply circuit, while being less than the maximum safe current of the power supply circuit, to prevent the fuse from blowing when the high-power scientific instrument starts up or operates.

7. The power management device for high-power scientific research instruments based on the Internet of Things according to claim 1, characterized in that, The IoT management platform is connected to the permission identification terminal, which is used to identify the authorized user information and trigger the IoT management platform to issue a switch command. The low-current power controller receives the switch command and controls the high-power scientific instrument to be powered on or off. The permission identification terminal is a barcode scanner or a card reader.

8. A power management method for high-power scientific research instruments based on the Internet of Things, characterized in that, The management method is implemented based on the IoT-based high-power scientific instrument power management device as described in any one of claims 1-7. Connect the IoT management platform to the permission recognition terminal, and enter authorized user information into the IoT management platform; The permission recognition terminal verifies the identity through the authorized user information. The authorized user issues a switch command through the Internet of Things management platform. The low-current power controller receives the switch command and transmits the switch command to the instrument power supply circuit module in the high-power scientific instrument. The instrument power supply circuit module is set with a safe threshold range for the operation of high-power scientific instruments. The safe threshold range is less than the load operating current of the low-current power controller, so that the operating current of the high-power scientific instruments is adapted to the load operating current of the low-current power controller, thereby controlling the operation of the high-power scientific instruments. After the high-power scientific instrument has finished operating, the authorized user verifies the authorized user information again through the permission identification terminal, the instrument power supply circuit module disconnects the power, and the Internet of Things management platform records the usage data of the high-power scientific instrument.

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