KR102454134B1 - Smart pdu - Google Patents

Abstract

The present invention relates to a smart PDU (Power Distribution Unit) that is installed in a rack for accommodating computing equipment and supplies power. a plurality of current measuring sensors for measuring; a plurality of switching devices installed on the path of the current applied to each socket together with the current measuring sensor to control on/off the current applied to the socket; and calculating and providing the individual current for each socket and the sum total current from the bar measured by the plurality of current measuring sensors, and blocking the application of current by turning off the corresponding switching element for the socket through which a microcurrent below a certain threshold flows It is characterized in that it includes a controller for providing a warning alarm while blocking the application of current by turning off the corresponding switching element for the socket through which the overcurrent flows. Thereby, it is possible to check whether or not there is a malfunction or abnormality of the computer equipment housed in the rack through the supply management of current, and it is possible to implement even a power saving function through the micro-current cutoff.

Description

Smart PDU {SMART PDU}

The present invention relates to a smart PDU (Power Distribution Unit) that is installed in a rack that houses network equipment, communication equipment, servers, and the like and supplies power.

With the development of information technology, many companies are equipped with computer equipment for data communication, storage and management, and these computer equipment are mainly stored and managed in a dedicated structure called a rack as shown in FIG. .

In the case of a large-scale company that requires multiple racks (1), separate safety devices are provided to monitor the indoor environment such as temperature and humidity or the power used in each rack (1) by operating a separate server room. are doing

However, in the case of a company where computer processing is sufficient even with one or two racks (1), the management level is limited to visually checking the rack (1) without operating a server room, so there is a risk of computer equipment failure. there was

[Prior art document] Patent No. 10-2312581 (October 14, 2021)

Therefore, the present invention is a part of solving the problems of the prior art as described above, paying particular attention to a PDU (Power Distribution Unit) installed in a rack and supplying power to computer equipment, and expanding its function through this for each computer equipment. The purpose is to provide a so-called smart PDU that can additionally perform key functions of equipment management, such as checking for normal operation and blocking abnormal current.

In order to achieve the above object, the present invention provides a smart PDU (Power Distribution Unit) installed in a rack for accommodating computing equipment, comprising: a power supply module for supplying current drawn in from the outside; a plurality of sockets receiving current from the power supply module; a plurality of current measuring sensors installed on the path of the current applied to each socket to measure the current applied to the socket; a plurality of switching devices installed on the path of the current applied to each socket together with the current measuring sensor to control on/off the current applied to the socket; and calculating and providing the individual current for each socket and the sum total current from the bar measured by the plurality of current measuring sensors, and blocking the application of current by turning off the corresponding switching element for the socket through which a microcurrent below a certain threshold flows It provides a smart PDU characterized in that it includes a controller that provides a warning alarm while blocking the application of current by turning off a corresponding switching element for a socket through which an overcurrent flows.

Here, when the current is supplied through the power supply module, the controller turns on all the switching elements so that current is supplied to all sockets, and then selects the plurality of sockets from the supply of current exceeding the threshold of the microcurrent. Classified into a used port and an unused port, the socket of the unused port blocks the current application by turning off the corresponding switching element, and the used current applied to the socket of the used port is periodically measured through the current measuring sensor. By collecting, a function of setting and updating the range of the normal current in the corresponding socket may be provided.

Then, the controller calculates the lower limit of the overcurrent based on the steady current, a low current section between the threshold of the microcurrent and the lower limit of the steady current, and a high current between the upper limit of the steady current and the lower limit of the overcurrent A function of providing a cautionary alarm regarding the socket through which the current of the low current section or the high current section flows by setting it to a section may be provided.

On the other hand, the plurality of current measuring sensors and the plurality of switching elements are all mounted on a single board and provided, and the controller is provided by a display and the controller for displaying the individual current and the total current for each socket. It is provided mounted on one main board together with a wired communication terminal for transmitting the alarm to the outside, and the smart PDU may further include a wireless communication module for transmitting the alarm provided by the controller to the outside.

According to the present invention, if only the smart PDU according to the present invention is installed in the rack, even if there is no safety management by the server room, and further, even if it is not provided as a smart rack for managing the operating environment in one rack, the current Through supply management, it is possible to check whether or not there is a malfunction or abnormality of the computer equipment stored in the rack, and it is possible to implement a power-saving function by blocking micro-current.

1 is a photograph of a rack according to the prior art;
2 is a perspective view of a rack in which a smart PDU is installed according to an embodiment of the present invention;
3 is a circuit diagram of the smart PDU of FIG. 2;
4 is a partial circuit configuration diagram for explaining the main functions of a smart PDU according to an embodiment of the present invention;
5 is a graph for explaining a current control standard of a smart PDU according to an embodiment of the present invention;
6 is an operation flowchart of a smart PDU according to an embodiment of the present invention.

The smart PDU 100 according to the embodiment of the present invention is an accessory installed in the rack 2 in which various computing equipment is accommodated, as shown in FIG. 2 . Computing equipment accommodated in the rack 2 can be operated by receiving power by connecting a power plug to each socket 110 of the smart PDU 100 .

The smart PDU 100 corresponds to the power supply module 120 for supplying current drawn in from the outside, a plurality of sockets 110 receiving current therefrom, and each socket 110 as shown in FIG. 3 . Current supply to the socket 110 through the current measuring sensor (130 in FIG. 4) and the switching device (140 in FIG. 4), these current measuring sensor 130 and the switching device 140 on the installed sub-board 101 It is configured to include a controller 150 to control.

The sub-boards 101 on which the current measuring sensor 130 for each socket 110 and the switching device 140 are mounted are all mounted on one board 102, and the board 102 is as shown in FIG. It is built in the housing of the same smart PDU (100).

The controller 150 is mounted on the main board 103 together with the display 160 and the LAN wired communication terminal 170, and a wireless communication module ( 180 is electrically connected to the main board 103 , and the power supply module 120 is also electrically connected to the main board 103 .

The main board 103, the wireless communication module 180, and the power supply module 120 together with the board 102 directly electrically connected to the socket 110 are all in the housing of the smart PDU 100 of FIG. is built-in

The current measuring sensor 130 and the switching device 140 mounted on the sub-board 101 are installed on the path of the current applied to the corresponding socket 110 as shown in FIG. 4 . Accordingly, the current measuring sensor 130 can measure the current applied to the socket 110 and provide it to the controller 150 , and turn on/off the current applied to the socket 110 through the switching element 140 . off can be controlled.

The controller 150 calculates the total current by summing them together with the individual currents of the sockets 110 from the current measuring sensors 130 installed for each socket 110 through the wired communication terminal 170 or the wireless communication module 180 . Information is provided to the administrator's terminal.

In addition, the controller 150 determines a current leakage with respect to the socket 110 through which a microcurrent of 0.5 A or less flows as shown in FIG. 5 and turns off the corresponding switching device 140 by controlling the Block the current application.

In addition, the controller 150 determines that the socket 110 through which an overcurrent flows beyond the range of the normal current by several multiples or more as a failure of the computing equipment connected thereto and turns off the corresponding switching device 140 , as well as wired communication. A warning alarm is provided to the terminal of the manager through the terminal 170 to the wireless communication module 180 .

In the graph of FIG. 5 , the current reference value is set differently according to the individual computing equipment connected to each port, that is, the socket 110 for each intensity of the current. The graph of FIG. 5 illustrates a case in which computer equipment consuming a rated current of 2A is connected to the socket 110 assigned to the port number 1.

That is, according to the graph reference of FIG. 5 , if the current value measured from the current measuring sensor 130 installed in response to the socket 110 is 1.5 to 2.5 A, the controller 150 classifies it as a normal current and the corresponding computer equipment is judged to be operating normally.

However, if the value of the current flowing through the socket 110 is measured to be 5A or more corresponding to 2.5 times the rated current, the controller 150 determines that this corresponds to an overcurrent, and as described above, the switching element 140 By controlling the OFF through , it cuts off the current supply and at the same time provides a warning alarm to the manager.

And, between the threshold of the microcurrent (0.5A) and the lower limit of the normal current (1.5A) is a low current section, and between the upper limit of the steady current (2.5A) and the lower limit of the overcurrent (5A) is classified as a high current section. When the current values in these sections are measured, the controller 150 provides a caution alarm to the user.

As shown in the graph of FIG. 5 , in order to set the reference values of the current for each port, that is, the socket 110, first, all the computing equipment to be accommodated in the rack (2 of FIG. 2) is accommodated and connected to the socket 110, respectively. Next, when the smart PDU 100 is initially operated, the controller 150 of the smart PDU 100 controls in the order shown in FIG. 6 .

First, the controller 150 turns on all the switching elements 140 so that the current flows into all the sockets 110 (S1), and then the current measured through each current measuring sensor 130 is the threshold value of the microcurrent. Sockets 110 that do not exceed are classified as unused ports, and sockets 110 that exceed this are classified as used ports (S2).

Then, with respect to the socket 110 corresponding to the unused port, the current application is blocked by turning off the corresponding switching element 140 (S3).

For the socket 110 corresponding to the port to be used, the range of the normal current in the socket 110 is set as illustrated in FIG. 5 by periodically measuring and collecting the current value through the corresponding current measurement sensor 130 . and update it periodically.

In FIG. 2 or FIG. 3 , the total current flowing through the smart PDU 100 and the current of individual sockets, alarms, etc. are also displayed through the display 160 .

On the other hand, since the smart PDU 100 described above is only an embodiment for helping the understanding of the present invention, the scope of the present invention defined by the claims to be described below is not limited to the above-described bar. Can not be done.

2: Rack
100: Smart PDU (Power Distribution Unit)
101: sub board
102: board
103: main board
110: socket
120: power supply module
130: current measuring sensor
140: switching element
150: controller
160: display
170: wired communication terminal
180: wireless communication module

Claims (4)

delete A smart PDU (Power Distribution Unit) installed in a rack for accommodating computing equipment, comprising: a power supply module for supplying an external current; a plurality of sockets receiving current from the power supply module; a plurality of current measuring sensors installed on the path of the current applied to each socket to measure the current applied to the socket; In the smart PDU including a plurality of switching elements installed on the path of the current applied to each socket together with the current measuring sensor to on/off control the current applied to the socket,
It calculates and provides the individual current for each socket and the sum total current from the bar measured by the plurality of current measurement sensors, and blocks the application of current by turning off the corresponding switching element for the socket through which a microcurrent below a certain threshold flows. , With respect to the socket through which the overcurrent flows, the controller further includes a controller that blocks the application of current by turning off the corresponding switching element and provides a warning alarm at the same time,
the controller is
When the current is supplied through the power supply module, current is supplied to all sockets by turning on all the switching elements, and then, the plurality of sockets are used and unused ports from the presence or absence of supply of current exceeding the threshold of the microcurrent. to the socket of the unused port to block the current application by turning off the corresponding switching element, and the used current applied to the socket of the used port is periodically measured and collected through the current measurement sensor to Smart PDU, characterized in that it sets and updates the range of the normal current. 3. The method of claim 2,
the controller is
Calculate the lower limit of the overcurrent based on the normal current,
A low current section is set between the threshold value of the microcurrent and the lower limit value of the normal current, and a high current section is set between the upper limit value of the normal current and the lower limit value of the overcurrent, and the low current section or the high current section of the socket through which the current flows. Smart PDU, characterized in that providing an alarm. 3. The method of claim 2,
The plurality of current measuring sensors and the plurality of switching devices are all mounted on one board and provided,
The controller is provided mounted on one main board together with a display for displaying the individual current for each socket and the total current and a wired communication terminal for transmitting an alarm provided by the controller to the outside,
Smart PDU, characterized in that it further comprises a wireless communication module for transmitting the alarm provided by the controller to the outside.

Images