TWI697770B - Device monitoring system - Google Patents

Abstract

A device monitoring system includes a power distribution unit (PDU) device and a monitoring device. The monitoring device is pluggable to the PDU device. The PDU device is electrically coupled to a power supply, and the PDU device allocates power to electrical device. The PDU device includes a detecting module and a storing module. The detecting module is used to obtain a power signal of the power supply. The storing module stores calibration data. The monitoring device monitors the power information of the PDU device. The monitoring device includes an amplifying module and a processing module. The amplifying module amplifies the power signal. The processing module processes the amplified power signal to obtain power data, and corrects the power data according to the calibration data. The accuracy of the power data will be maintained.

Description

Power distribution unit monitoring system

The invention relates to a power distribution unit monitoring system.

Generally speaking, it is usually necessary to configure a high-precision monitoring device to monitor the power information of the power distribution unit. Therefore, developers generally perform a calibration process on the matching power distribution unit and monitoring device to generate calibration parameters, and store the calibration parameters in the monitoring device. The monitoring device corrects its monitoring data according to the correction parameters to meet the accuracy requirements.

However, due to the presence of components in the monitoring device that affect the calibration data, the power distribution unit needs to re-execute the calibration process to generate new calibration parameters when replacing the power monitoring device, otherwise the accuracy of the monitoring data will be affected.

In view of the above, it is necessary to provide a power distribution unit monitoring system that can improve the accuracy of monitoring data.

A power distribution unit monitoring system includes a power distribution unit and a monitoring device. The monitoring device is pluggably connected to the power distribution unit. The power distribution unit is electrically connected to an input power source for distributing power to a load. The distribution unit includes: a detection module, the detection module is used to obtain the power signal of the input power; and a storage module, the storage module is used to store calibration data; The monitoring device is used for monitoring the power information of the power distribution unit, the monitoring device includes: an amplifying module, the amplifying module is electrically connected to the detection module, and the amplifying module is used for receiving The detection module transmits the power signal and amplifies the power signal; and a processing module, the processing module is electrically connected to the storage module and the amplifying module, and the processing module is used to The amplified power signal is processed to obtain electrical source data, and the processing module is also used to obtain the correction data, and correct the electrical source data according to the correction data.

Further, the monitoring device further includes a filter module, the filter module is electrically connected between the amplifying module and the processing module, and the filter module is used to perform processing on the amplified power signal Filtering.

Further, the power distribution unit further includes a first interface, and the monitoring device further includes a second interface, and the first interface is used to electrically connect with the second interface.

Further, the power distribution unit includes an input port, the input port is electrically connected to the input power, the detection module is electrically connected between the input port and the first interface, and the amplifying module is electrically connected Connected between the second interface and the processing module.

Further, the detection module includes a voltage detection circuit and a current detection circuit. Both the voltage detection circuit and the current detection circuit are electrically connected to the input port. The power signal includes a voltage signal and a current signal. The detection circuit is used to obtain the voltage signal, and the current detection circuit is used to obtain the current signal.

Further, the amplifying module includes a voltage amplifying circuit and a current amplifying circuit. When the first interface is electrically connected to the second interface, the voltage amplifying circuit is electrically connected to the voltage detecting circuit, and The current amplifying circuit is electrically connected to the current detecting circuit, the voltage amplifying circuit is used to amplify the voltage signal, and the current amplifying circuit is used to amplify the current signal.

Further, the storage module is electrically connected to the first interface, and the processing module is electrically connected to the second interface. When the first interface and the second interface are electrically connected, the storage module Realize electrical connection with the processing module.

Further, the storage module is a charged erasable programmable read-only memory.

In this solution, the detection module and storage module that have a greater impact on power supply monitoring are arranged in the power distribution unit, so that when different monitoring devices are inserted into the power distribution unit, the monitoring device will The power signal obtained by the module is processed to obtain electrical source data. The monitoring device will also directly obtain the calibration data in the storage module, and calibrate the electrical source data according to the calibration data. In this way, the accuracy of the electricity source data will be maintained.

10: Power distribution unit

11: Input port

12: Control module

13: output port

14: Detection module

141: Voltage detection circuit

142: Current electric measuring circuit

15: Storage module

16, 21: Interface

20: Monitoring device

22: Amplification module

221: voltage amplifier circuit

222: current amplifier circuit

23: Filter module

24: Processing module

Fig. 1 is a schematic diagram of a preferred embodiment of a power distribution unit monitoring system.

FIG. 2 is a circuit module diagram of a preferred embodiment of the power distribution unit in FIG. 1. FIG.

FIG. 3 is a circuit module diagram of the preferred embodiment of the monitoring device in FIG. 1.

4 is a circuit module diagram of a preferred embodiment of the power distribution unit monitoring system in FIG. 1.

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

In order to make the objectives, technical solutions and advantages of the present invention clearer, the following will be combined with the accompanying drawings and embodiments to further describe the cooling device of the present invention and the electronic device cooling system using the cooling device in detail and related Description.

Please refer to FIG. 1, in a preferred embodiment of the present invention, a power distribution unit monitoring system 100 includes a power distribution unit 10 and a monitoring device 20. The monitoring device 20 can be plugged into the power supply In the distribution unit 10, when the monitoring device 20 is plugged into the power distribution unit 10, the monitoring device 20 is electrically connected to the power distribution unit 10. The power distribution unit 10 is used to distribute power to a number of loads (not shown). The power distribution unit 10 can be applied to a data center, where the loads can be electrical devices such as computer cabinets or network equipment. The monitoring device 20 is used to monitor the power information of the power distribution unit 10.

Specifically, the power information includes voltage and current. The monitoring device 20 sends the monitored power information to a remote management system (not shown), and the remote management system can output management signals according to the power information. If the power distribution unit 10 is in an overload state, the remote management system will output warning information to prompt the user to reduce the number of loads connected to the power distribution unit 10.

Please refer to FIG. 2, the power distribution unit 10 includes an input port 11, a control module 12 and a plurality of output ports 13. The control module 12 is electrically connected between the input port 11 and the plurality of output ports 13. The input port 11 is electrically connected to an input power source, and the input power source may be city power. The control module 12 is used to control the power output of each output port 13. Each of the output ports 13 is used to electrically connect a load. In this embodiment, the load is a server. In other embodiments, the load may also be other electrical equipment.

The power distribution unit 10 further includes a detection module 14, a storage module 15 and an interface 16. The detection module 14 is electrically connected between the input port 11 and the interface 16. The detection module 14 is used to obtain a power signal from the input port 11 and output the power signal to the monitoring device 20 through the interface 16. The storage module 15 is electrically connected to the interface 16. The storage module 15 is used to store a calibration data.

In this embodiment, the storage module 15 may be an electrically erasable programmable read only memory (EEPROM).

In this embodiment, the detection module 14 includes a voltage detection circuit 141 and a current detection circuit 142. The power supply signal includes a voltage signal and a current signal. The voltage detection circuit 141 is used to obtain the voltage signal, the current The detection circuit 142 is used to obtain the current signal.

Please refer to FIG. 3 and FIG. 4, the monitoring device 20 includes an interface 21, an amplification module 22, a filtering module 23 and a processing module 24.

The interface 21 is electrically connected to the amplifying module 22 and the processing module 24. The interface 21 is used for plugging with the interface 16. When the interface 21 is plugged with the interface 16, the power distribution unit 10 and the monitoring device 20 are electrically connected. The filter module 23 is electrically connected between the amplifying module 22 and the processing module 24.

When the interface 21 is plugged into the interface 16, the amplifying module 22 and the processing module 24 establish communication connections with the detection module 14 and the storage module 15 respectively.

The amplifying module 22 is used for receiving the power signal transmitted by the detecting module 14, and amplifying the power signal before transmitting it to the filtering module 23.

Specifically, the amplifying module 22 includes a voltage amplifying circuit 221 and a current amplifying circuit 222. The voltage amplifier circuit 221 and the current amplifier circuit 222 are communicatively connected to the voltage detection circuit 141 and the current detection circuit 142, respectively. The voltage amplification circuit 221 is used to amplify the voltage signal transmitted by the voltage detection circuit 141. The current amplifying circuit 222 is used to amplify the current signal transmitted by the current detecting circuit 142.

The filter module 23 is used to filter the power signal amplified by the amplifying module 22 to filter out noise in the power signal, and transmit the filtered power signal to the processing module Group 24.

The processing module 24 is used to receive the power signal transmitted by the filter module 23 and process the power signal to obtain power source data. The processing module 24 is also used to obtain calibration data stored in the storage module 15. The processing module 24 corrects the electrical source data according to the correction data, and sends the corrected electrical source data to the remote management system. In this embodiment, the electrical source data includes voltage value and current value.

In this embodiment, the calibration data is generated by a calibration device (not shown) performing a calibration process, and is stored in the storage module 15. Specifically, the calibration device is connected to the input port 11. The calibration device obtains the power signal of the input port 11, and converts the power signal After processing, a standard data is obtained. The calibration device is also connected to the processing module 24 and the storage module 15. The calibration device obtains the electrical source data obtained by the processing module 24, and compares the standard data with the electrical source data to obtain a calibration data. The calibration device sends the calibration data to the storage module 15 to store the calibration data. In this way, when the monitoring device 20 is inserted into the power distribution unit 10, the monitoring device 20 will directly obtain the calibration data stored in the storage module 15 without re-executing the calibration process.

It can be understood that the power signal obtained by the detection module 14 and the calibration data in the storage module 15 have a greater impact on the accuracy of the electrical source data. Therefore, the detection module 14 and the storage module 15 are arranged in the power distribution unit 10, so that when the power distribution unit 10 is plugged into a different monitoring device 20, the monitoring device is prevented from being affected 20 to monitor the accuracy of the power distribution unit 10.

In the power distribution unit monitoring system 100 described above, the detection module 14 and the storage module 15 that have a greater impact on power monitoring are arranged in the power distribution unit 10, so that different monitoring devices 20 are inserted into the power distribution unit 10. , The monitoring device 20 processes the power signal obtained by the detection module 14 to obtain electrical source data, and the monitoring device 20 will also directly obtain the calibration data in the storage module 15 and perform calibration based on the calibration data. The data corrects the electricity source data. In this way, the accuracy of the electricity source data will be maintained.

In summary, this publication clearly meets the requirements of an invention patent, so it filed a patent application in accordance with the law. However, the above descriptions are only preferred embodiments of the present invention, which cannot limit the scope of patent application in this case. Anyone who is familiar with the technique of this case and makes equivalent modifications or changes based on the spirit of the present invention shall be covered by the scope of the following patent applications.

10: Power distribution unit

11: Input port

12: Control module

13: output port

14: Detection module

141: Voltage detection circuit

142: Current electric measuring circuit

15: Storage module

16, 21: Interface

20: Monitoring device

22: Amplification module

221: voltage amplifier circuit

222: current amplifier circuit

23: Filter module

24: Processing module

Claims (8)

A power distribution unit monitoring system includes a power distribution unit and a monitoring device, the monitoring device is pluggable connected to the power distribution unit, wherein: the power distribution unit is electrically connected to an input power source and is used to distribute power to a load. The power distribution unit includes: a detection module, the detection module is used to obtain the power signal of the input power; and a storage module, the storage module is used to store calibration data; the monitoring device is used to The power information of the power distribution unit is monitored, and the monitoring device includes an amplifying module electrically connected to the detection module, and the amplifying module is used to receive the power signal transmitted by the detection module , And amplify the power signal; and a processing module, the processing module is electrically connected to the amplifying module, and the processing module is used to process the amplified power signal to obtain electrical source data, The processing module is also used to obtain the calibration data, and calibrate the electrical source data according to the calibration data. The power distribution unit monitoring system of claim 1, wherein the monitoring device further includes a filtering module, the filtering module is electrically connected between the amplifying module and the processing module, and the filtering The module is used to filter the amplified power signal. The power distribution unit monitoring system according to claim 1, wherein the power distribution unit further includes a first interface, and the monitoring device further includes a second interface, and the first interface is used to communicate with the second interface. Sexual connection. The power distribution unit monitoring system according to claim 3, wherein the power distribution unit includes an input port, the input port is electrically connected to the input power source, and the detection module is electrically connected to the input port and the Between the first interface, the amplifying module is electrically connected between the second interface and the processing module. The power distribution unit monitoring system according to claim 4, wherein the detection module includes a voltage detection circuit and a current detection circuit, and both the voltage detection circuit and the current detection circuit are Connected to the input port, the power signal includes a voltage signal and a current signal, the voltage detection circuit is used to obtain the voltage signal, and the current detection circuit is used to obtain the current signal. The power distribution unit monitoring system according to claim 5, wherein the amplifying module includes a voltage amplifying circuit and a current amplifying circuit. When the first interface and the second interface are electrically connected, the voltage amplifying circuit Is electrically connected to the voltage detection circuit, the current amplifying circuit is electrically connected to the current detection circuit, the voltage amplifying circuit is used to amplify the voltage signal, and the current amplifying circuit is used to The current signal is amplified. The power distribution unit monitoring system according to claim 6, wherein the storage module is electrically connected to the first interface, and the processing module is electrically connected to the second interface, when the first interface and the When the second interface is electrically connected, the storage module and the processing module are electrically connected. The power distribution unit monitoring system according to claim 1, wherein the storage module is a charged erasable programmable read-only memory.

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