TWI392195B - Abnormal Identification Module of Backup Power Supply System and Its - Google Patents

Description

Abnormal identification module and method for backup power supply system

The invention relates to an abnormality identification module and a method thereof for a backup power supply system, in particular to an auxiliary power supply system for at least two power supply modules to determine whether an abnormality of the power supply module system occurs. And its method.

The current backup power supply system is composed of multiple power supplies, which can be generally called N+1 architecture. Taking the 1+1 architecture as an example, it is composed of two power supplies, and the representation can be tolerated. In the event that one of the power supplies is damaged, the other power supply can still supply power normally. The power supply in this type of backup power supply system is designed by the sharing mechanism, such as the Patent Office No. 562163 of the Republic of China. The main purpose is to install several power supplies in one casing and connect them to the power integrated backplane for control. One of the power supply's operation is abnormal, and the power integrated backplane for control usually gives an abnormality. Warning, as shown in Figure 1, is a block diagram of a traditional backup power supply system identification module, including N+1 power supply modules 10, 11 and connecting the power supply modules 10, 11 for integration. A power detecting backplane 20 is disposed on the backplane 20, and the detecting unit 40 is configured to obtain power security signals of the power supply modules 10 and 11 in the power-on state of the power supply modules 10 and 11. S2 (Power Good, PG), and judge whether the power supply modules 10, 11 are abnormal according to the level of the power safety signal S2. For example, when the power safety signal S2 is at a high level, it is determined that the power supply modules 10 and 11 are powered normally. When the power security signal S2 is at a low level, it is determined that the power supply modules 10 and 11 are abnormally powered, and the detection result is sent through a warning unit 50. An alarm is issued to inform the operator that inspection and maintenance are required.

However, the reason why the detecting unit obtains the power security signal S2 as a low level may be that the power supply modules 10 and 11 are damaged, or the power supply modules 10 and 11 may not be connected to the backboard 20, such as poor contact, or even In practice, in order to save the cost of the power supply modules 10, 11 and not to consider a higher safety power factor (for example, the power consumption of the back-end electronic device is lower), the backplane 20 is highly likely to be not fully charged. The modules 10 and 11 are reserved for empty slots. The above factors may cause the power security signal S2 obtained by the detecting unit 40 to be low. However, the above conventional identification module can only transmit the power security signal S2. The position of the power supply module 10, 11 is normal or not, and the true cause of the power supply module 10, 11 is abnormal. Therefore, if the detecting unit 40 determines that the power supply module 10, 11 is abnormally powered At the time, the operator also needs to personally analyze the power supply module 10, 11 where the power supply system is located, and analyze the power supply module 10, 11 for abnormal power supply, and then process the fault according to the abnormality, thereby reducing the efficiency of the crisis processing, and Machine processing is time-sensitive, the aforementioned identification module will significantly increase the processing time, and seriously affect the ability of risk management.

The main purpose of the present invention is to solve the above-mentioned shortcomings, thereby distinguishing the causes of abnormalities in the power supply modules in the backup power supply system, so as to speed up the crisis response processing.

In order to achieve the above object, the present invention provides an abnormality identification module for a backup power supply system, which includes a control loop that provides a trigger signal and generates a reference signal according to the trigger signal; at least two power supply modules are connected. The backplane of the integrated power output is electrically connected to the control back The trigger signal is obtained to determine that the power supply module is in a power-off state or a power-on state to generate a power security signal; a detecting unit electrically connects the power supply modules and the control circuit, and obtains the power source The security signal and the reference signal, and the power security signal and the reference signal detect whether the power supply module is abnormal, and output a detection signal according to the detection result; a warning unit is connected to the detection unit and obtains the The detection signal notifies whether the power supply module is abnormal. Because the detection unit checks the connection status between the power supply module and the backboard when the power supply module is turned off, the operator can confirm the power supply in the shutdown state. If the supply module is connected to the backplane, if the power supply module is turned on, if the power supply module is detected abnormally, the connection between the power supply module and the backplane can be eliminated, and the abnormal condition is determined. The power supply module is damaged, thereby distinguishing the cause of the abnormality of the power supply module to speed up the strain processing of the operator.

The detailed description and technical contents of the present invention will now be described as follows:

Referring to FIG. 2, the present invention is an abnormality identification module for a backup power supply system. The backup power supply system includes a control loop for providing a trigger signal S1 and generating a reference signal S3 according to the trigger signal S1. 70, and at least two power supply modules 10, 11 electrically connected to the control circuit 70, the power supply modules 10, 11 are connected to a backplane 20 to integrate power output, and obtain the trigger signal S1 and According to the level of the trigger signal S1, the power supply module 10, 11 is determined to be in a power-off state or a power-on state to generate a power security signal S2, and an electrical power is set on the backplane 20. The power supply modules 10 and 11 and the detection unit 40 of the control circuit 70 are connected. The detection unit 40 obtains the power security signal S2 and the reference signal S3 to determine whether the power supply modules 10 and 11 are abnormal. And outputting a detection signal S4 to a warning unit 50, such as a buzzer, a warning light, etc., according to the detection result, thereby issuing an abnormality warning of the power supply module 10, 11, which constitutes the main structure of the present invention; Referring to FIG. 3, the control circuit 70 of the present invention includes a switch unit 60 for generating a trigger signal S1 to the power supply modules 10, 11, such as a motherboard, a circuit board or a button, and the like. And obtaining the trigger signal S1 and generating the reference unit 30 of the reference signal S3 according to the trigger signal S1.

The actual operation mode of the present invention is shown in FIG. 4 and is shown in FIG. 5. In this embodiment, the reference unit 30 is a resistor R1 and R2. First, step 101 is performed: setting the power supply modules 10 and 11 to In the shutdown state, the switch unit 60 generates the high-level trigger signal S1, so that the power supply modules 10 and 11 are in the off state and output the low-level power safety signal S2, and the trigger signal S1 is also transmitted to the resistor. R1, R2, at this time, the resistors R1, R2 can be used as a pull-high resistor, so that the trigger signal S1 is pulled up through the resistors R1, R2 to output a high-level reference signal S3.

Step 102: determining whether the power supply modules 10, 11 are abnormal, the detecting unit 40 obtains the reference signal S3 and is in a high level state. At this time, if the power security signal S2 is obtained again, the high-level drop is obtained. When the level is low, it is judged to be in a normal state, and the detection signal S4 is output to the warning unit 50 to confirm that the power supply modules 10 and 11 are connected to the backboard 20 in the off state, and the next step is performed; however, if the detection is performed; If the unit 40 is not pulled down to the low level and maintained at the high level, then step 103 is performed: The abnormal state is sent to indicate that the detecting unit 40 only obtains the high-level reference signal S3 and does not obtain the low-level power security signal S2, so that the power supply cannot be determined by pulling the high level down to the low level. The modules 10 and 11 are poorly connected to the backplane 20, and output the detection signal S4 to the warning unit 50 to warn that the power supply modules 10 and 11 are in poor contact with the backplane 20 or the backplane 20 has an unplugged power supply module. The empty slots of the groups 10 and 11 enable the operator to confirm the connection status of the power supply modules 10 and 11 and the backboard 20 first when the power supply modules 10 and 11 are turned off.

Step 102: If the power supply module is normal, proceed to step 104: set the power supply modules 10 and 11 to be in a power-on state, and generate a low-level trigger signal S1 by the switch unit 60 to enable the power supply module 10, 11 is in a power-on state, and generates a high-level power security signal S2 when the power supply modules 10, 11 are operated to supply safe power, and the trigger signal S1 is also transmitted to the resistors R1, R2, at this time, the resistor R1 and R2 can be used as pull-low resistors, so that the trigger signal S1 is pulled down through the resistors R1 and R2 to output a low-level reference signal S3.

Then, step 105 is performed to determine whether the power supply modules 10 and 11 are abnormal. The detecting unit 40 obtains the reference signal S3 and is in a low level state. At this time, if the power security signal S2 is obtained again, the low level is obtained. When the device is pulled to the high level, it is determined to be in a normal state, and the detection signal S4 is outputted to the warning unit 50 to determine that the power supply modules 10 and 11 are in the normal power supply state, and the identification operation is completed; however, if the detection unit 40 is in the power supply After the power-on state of the modules 10 and 11 is still at the low level and is not pulled up to the high level, step 106 is performed: the first abnormal state is excluded and the second abnormal state is determined and an alert is issued, because the power has been confirmed before the power-on. Supply module 10, 11 and backplane The connection status of 20, so the reason why the power safety signal S2 is directly low is caused by the damage of the power supply modules 10, 11, and the alarm unit 50 issues an alarm to inform the operator to replace and repair; or It can be judged that the backup power supply system has lower power consumption of the back-end electronic device, and the backplane 20 deliberately reserves an empty slot before starting the power, so no emergency processing is required.

The reference unit 30 of the present invention may be implemented by logic gates 31 and 32 as shown in FIG. 6 in addition to the resistors R1 and R2. The logic gates 31 and 32 may be, but are not limited to, those illustrated in the drawings. Or the OR gate, the trigger signal S1 of the switch unit 60 is obtained through the logic gates 31 and 32, and the reference signal S3 of the corresponding level is output according to the level of the trigger signal S1, so that the detecting unit 40 is in the power supply module. 10, 11 in the shutdown state, the reference signal S3 outputted by the logic gates 31, 32 and the power supply security signal S2 of the power supply modules 10, 11 determine the connection status of the power supply modules 10, 11 and the backplane 20.

In summary, the present invention mainly uses the reference unit 30 to generate a reference signal S3 to the detecting unit 40 corresponding to the trigger signal S1, so that the detecting unit 40 obtains the power supply in the power-off state of the power supply modules 10 and 11. The power supply security signal S2 of the modules 10 and 11 first determines the connection status of the power supply modules 10 and 11 and the backplane 20, so that the operator processes the power supply modules 10 and 11 in a shutdown state first, so the detecting unit 40 When the power supply modules 10 and 11 are powered on, if the abnormality of the power supply modules 10 and 11 is detected, the factors that cause poor connection between the power supply modules 10 and 11 and the backplane 20 can be eliminated, and the abnormal condition is determined as the power supply. The supply modules 10, 11 are damaged, thereby discerning the cause of the abnormality of the power supply modules 10, 11 to facilitate the operator's strain processing.

The above are only the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and the equivalent variations and modifications of the present invention are intended to be within the scope of the present invention.

10,11‧‧‧Power supply module

20‧‧‧ Backplane

30‧‧‧reference unit

31, 32‧‧‧ logic gate

40‧‧‧Detection unit

50‧‧‧Warning unit

60‧‧‧Switch unit

70‧‧‧Control loop

101~106‧‧‧Steps

S1‧‧‧ trigger signal

S2‧‧‧Power Safety Signal

S3‧‧‧ reference signal

S4‧‧‧Detection signal

Figure 1 is a block diagram of a conventional backup power supply system identification module.

Figure 2 is a block diagram of the present invention.

Figure 3 is another block diagram of the present invention.

4 is a schematic flow chart of the method of the present invention.

Figure 5 is a schematic view of a first embodiment of the present invention.

Figure 6 is a schematic view of a second embodiment of the present invention.

10,11‧‧‧Power supply module

20‧‧‧ Backplane

40‧‧‧Detection unit

50‧‧‧Warning unit

70‧‧‧Control loop

S1‧‧‧ trigger signal

S2‧‧‧Power Safety Signal

S3‧‧‧ reference signal

S4‧‧‧Detection signal

Claims (7)

An abnormality identification module for a backup power supply system includes: a control loop including a switch unit for generating a trigger signal; and a reference for connecting the switch unit to obtain the trigger signal and generating the reference signal according to the trigger signal The unit has at least two power supply modules connected to an integrated power output backplane, and is electrically connected to the control loop to obtain the trigger signal to determine that the power supply module is powered off or powered on to generate a power supply security. a detection unit that electrically connects the power supply modules and the control circuit, obtains the power security signal and the reference signal, and uses the power security signal and the reference signal to detect whether the power supply module is An abnormality is generated, and a detection signal is output according to the detection result; a warning unit is connected to the detection unit and obtains the detection signal to alert the power supply module whether an abnormality occurs. The abnormality identification module of the backup power supply system according to claim 1, wherein the reference unit is a resistor, and the trigger signal is generated by the resistor to generate the reference signal. The abnormality identification module of the backup power supply system according to claim 1, wherein the reference unit is a logic gate, and the trigger signal is generated by the logic gate to generate the reference signal. The abnormality identification module of the backup power supply system of claim 1, wherein the reference unit and the detecting unit are disposed on the backplane. An abnormality identification method for a backup power supply system, the backup power supply The system includes at least two power supply modules connected to an integrated power output backplane, and the identification method comprises: setting a power supply system to a shutdown state; detecting whether the power supply system is abnormal, and if the power supply system is normal in a shutdown state Perform the next step. If it is abnormal, it is judged as the first abnormal state and a warning is issued. If the power supply system is detected to be normal, the power supply is set to be in the power-on state; if the power supply system is abnormal, if it is turned on, If the power supply system is normal, the identification operation is completed. If the abnormality is determined as the second abnormal state, and the warning is issued, the identification operation is completed. The abnormality identification method of the backup power supply system according to claim 5, wherein the first abnormal state is that the power supply module is poorly connected to the backplane. The abnormality identification method of the backup power supply system according to claim 5, wherein the second abnormal state is that the power supply module is damaged.