CN107294196B - Standby energy storage device of digital subscriber line access equipment and control method thereof - Google Patents
Standby energy storage device of digital subscriber line access equipment and control method thereof Download PDFInfo
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- CN107294196B CN107294196B CN201610204008.9A CN201610204008A CN107294196B CN 107294196 B CN107294196 B CN 107294196B CN 201610204008 A CN201610204008 A CN 201610204008A CN 107294196 B CN107294196 B CN 107294196B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/345—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering using capacitors as storage or buffering devices
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- Stand-By Power Supply Arrangements (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention discloses a standby energy storage device of digital subscriber line access equipment, which comprises a control module, an energy storage module connected with a power supply end and a switching module connected with the output end of the energy storage module, wherein the output end of the switching module is connected with a user side load; the input end of the control module is connected with the power supply end, and the output end of the control module is connected with the control end of the switching module; the energy storage module stores electric energy provided by the power supply end when the power supply end is powered on; when the control module detects that the power supply end is powered down, the control module controls the switching module to be switched from the off state to the on state, so that the energy storage module supplies power to the user end load by using the stored electric energy. The invention also discloses a standby energy storage control method of the digital subscriber line access equipment. When the power supply end of the access equipment of the digital subscriber line is abnormal, the invention can continue to supply power to the load of the user end through the standby energy storage device, thereby effectively improving the power supply reliability of the access equipment of the digital subscriber line, and having simple realization structure and lower cost.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a standby energy storage device of digital subscriber line access equipment and a control method thereof.
Background
DSL (Digital Subscriber Line) technology can provide voice, video and data services on a common twisted pair, has the advantages of high-speed access, low maintenance cost, full utilization of existing networks, safety and the like, and has become one of the most promising and competitive technologies.
The latest DSL-based G.fast technology can provide asymmetric transmission with the uplink and downlink net rate reaching 500Mbps on a twisted pair by expanding frequency spectrum. A typical application scenario of the fast technology is FTTDP (Fiber to the Distribution Point), as shown in fig. 1, an access device of DP (Distribution Point') is generally deployed in a basement of a house or at a wiring hole, and due to complexity of an access environment, power supply of the device is difficult, and if a dedicated electric wire is laid from a public power source to the access device, cost of system deployment is increased. Since the access device is typically less than 250 meters away from the user terminal, power may be supplied back to the access device through the user premises equipment. Due to the particularity of power supply, only two wires are provided for power transmission, and faults such as poor contact of a connector, abnormal voltage drop and the like can cause the abnormity of power supply, thereby causing the service interruption of access equipment. The prior art has the disadvantage of poor reliability of the power supply to the DSL access equipment.
Disclosure of Invention
The invention mainly aims to provide a standby energy storage device of digital subscriber line access equipment and a control method thereof, aiming at improving the power supply reliability of the standby energy storage device of the digital subscriber line access equipment.
The invention provides a standby energy storage device of digital subscriber line access equipment, which comprises a control module, an energy storage module connected with a power supply end and a switching module connected with the output end of the energy storage module, wherein the output end of the switching module is connected with a user side load; the input end of the control module is connected with the power supply end, and the output end of the control module is connected with the control end of the switching module; when the power supply end is powered on, the switching module is in a disconnected state;
the energy storage module is used for storing electric energy provided by the power supply end when the power supply end is powered on;
the control module is used for controlling the switching module to be switched from a disconnection state to a connection state when detecting that the power supply end is powered down, so that the energy storage module supplies power to the user side load by using the stored electric energy.
Preferably, the control module is further configured to control the switching module to switch from a conducting state to a disconnecting state when it is detected that the power supply terminal is powered on, so that the energy storage module stores the electric energy provided by the power supply terminal.
Preferably, the energy storage module includes a voltage boosting unit connected to the power supply terminal, a first energy storage unit and a voltage reducing unit respectively connected to an output terminal of the voltage boosting unit, and an output terminal of the voltage reducing unit is connected to the switching module.
Preferably, the energy storage module further comprises a second energy storage unit connected to the output end of the voltage reduction unit.
Preferably, the control module is further configured to send a power-off instruction to a first preset load in the user-side load when power failure of the power supply end is detected, so that the first preset load performs power-off processing according to the power-off instruction.
Preferably, the control module is further configured to send a power-on instruction to a first preset load in the user-side load when it is detected that the power supply terminal is powered on, so that the first preset load performs power-on processing according to the power-on instruction.
Preferably, the control module is further configured to control the switching module to be connected to a second preset load in the user side loads and control the switching module to be disconnected from other user side loads except the second preset load when it is detected that the power supply terminal is powered down, so that the energy storage module supplies power to the second preset load by using the stored electric energy.
In addition, the standby energy storage control method of the digital subscriber line access equipment provided by the invention comprises the following steps: when the power failure of the power supply end of the access equipment is detected, the switching module connected between the user end load and the energy storage module is controlled to be switched from a disconnected state to a connected state, so that the energy storage module supplies power to the user end load by using the stored electric energy.
Preferably, the method for controlling standby energy storage of the digital subscriber line access device further includes: and when the power supply end of the access equipment is detected to be powered on, the switching module is controlled to be switched off, so that the energy storage module stores the electric energy provided by the power supply end.
Preferably, while the step of controlling the switching module connected between the customer-side load and the energy storage module to switch from the off state to the on state is executed, so that the energy storage module supplies power to the customer-side load by using the stored electric energy, the following steps are also executed: and sending a power-off instruction to a first preset load in the user side loads so that the first preset load can perform power-off processing according to the power-off instruction.
Preferably, the step of controlling the switching module connected between the customer-side load and the energy storage module to switch from the off state to the on state, so that the energy storage module supplies power to the customer-side load by using the stored electric energy includes: and controlling the switching module to be connected with a second preset load in the user side loads and controlling the switching module to be disconnected with other user side loads except the second preset load, so that the energy storage module supplies power to the second preset load by using the stored electric energy.
The invention provides a standby energy storage device of digital subscriber line access equipment and a control method thereof, which control a switching module connected between a user side load and an energy storage module to be switched from an off state to an on state when a control module detects that a power supply end of the access equipment is powered down, so that the energy storage module utilizes stored electric energy to supply power to the user side load, and therefore, when the power supply end of the digital subscriber line access equipment is abnormal, the standby energy storage device can be used for continuously supplying power to the user side load, the power supply reliability of the digital subscriber line access equipment is effectively improved, the realization structure is simple, and the cost is lower.
Drawings
Fig. 1 is a schematic view of an application scenario of a digital subscriber line access device according to the present invention;
fig. 2 is a schematic diagram of a first embodiment of a backup energy storage device of a digital subscriber line access apparatus according to the present invention;
fig. 3 is a schematic diagram of a second embodiment of a backup energy storage device of a digital subscriber line access apparatus according to the present invention;
fig. 4 is a diagram of an application circuit of the backup energy storage device of the digital subscriber access equipment of the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention provides a spare energy storage device of a digital subscriber line access device, which can be applied to DP access devices as shown in figure 1. Referring to fig. 2, fig. 2 is a schematic diagram illustrating a first embodiment of a backup energy storage device of a digital subscriber line access device according to the present invention, where the backup energy storage device of the digital subscriber line access device according to the present invention includes a control module 110, an energy storage module 120 connected to a power supply terminal Vin, and a switching module 130 connected to an output terminal of the energy storage module 120, and an output terminal of the switching module 130 is connected to a subscriber-side load 200; the input end of the control module 110 is connected to the power supply end Vin, and the output end is connected to the control end of the switching module 130; when the power supply terminal Vin is powered on, the switching module 130 is in a disconnected state;
the energy storage module 120 is configured to store electric energy provided by the power supply terminal Vin when the power supply terminal Vin is powered on;
the control module 110 is configured to control the switching module 130 to switch from an off state to an on state when detecting that the power-down of the power supply terminal Vin occurs, so that the energy storage module 120 utilizes the stored electric energy to supply power to the user-side load 200.
In this embodiment, the power supply terminal Vin is used for supplying power to the access device, and the power supply terminal Vin may be a power supply terminal reversely led from the user end device. The power supply terminal Vin may be a dc bus.
The energy storage module 120 may be an energy storage capacitor.
The switching module 130 may be implemented by a switching device such as a MOS transistor and a relay.
The control module 110 may be implemented by only a hardware circuit, or may be implemented by combining a hardware detection circuit for detecting the voltage of the Vin of the power supply terminal with a controller, and the controller controls the switching circuit by using a program algorithm according to a detection result of the hardware detection circuit.
Optionally, the power supply terminal Vin is further directly connected to the user-side load 200 to supply power to the user-side load 200.
When the power supply terminal Vin supplies power normally, as shown in fig. 2, the power supply terminal Vin can directly supply power to the user-side load 200 through the line a. At this time, the switching module 130 is in an off state. The power supply terminal Vin charges the energy storage module 120, so that the energy storage module 120 stores electric energy. Since the switching module 130 is in the off state, the energy storage module 120 does not supply power to the customer premises load 200 at this time, and only the power supply terminal Vin supplies power to the customer premises load 200.
The control module 110 detects the Vin voltage of the power supply terminal in real time. And when the voltage of the power supply terminal Vin is detected to be lower than the rated value, judging that the power of the power supply terminal Vin is cut off. The control module 110 outputs a control signal to the switching module 130, so that the switching module 130 is in a conducting state, and the energy storage module 120 can utilize the stored electric energy to supply power to the user-side load 200. Therefore, when the power supply terminal Vin of the digital subscriber line access device is abnormally powered, the energy storage module 120 can continuously supply power to the user side load 200, and the power supply reliability of the digital subscriber line access device is effectively improved. The standby energy storage device provided by the embodiment has the advantages of low cost and simple structure.
According to the standby energy storage device of the digital subscriber line access equipment, when the control module 110 detects that the power supply end Vin of the access equipment is powered down, the switching module 130 connected between the user side load 200 and the energy storage module 120 is controlled to be switched from the off state to the on state, so that the energy storage module 120 supplies power to the user side load 200 by using the stored electric energy, when the power supply end Vin of the digital subscriber line access equipment is abnormal, the standby energy storage device can be used for continuously supplying power to the user side load 200, the power supply reliability of the digital subscriber line access equipment is effectively improved, the implementation structure is simple, and the cost is low.
Further, in order to further improve reliability and intelligence of power supply to the digital subscriber line access device, based on the first embodiment of the backup energy storage device of the digital subscriber line access device of the present invention, the present invention further provides a second embodiment of the backup energy storage device of the digital subscriber line access device, in the second embodiment, the control module 110 is further configured to control the switching module 130 to switch from the on state to the off state when detecting that the power supply terminal Vin is powered on, so that the energy storage module 120 stores the electric energy provided by the power supply terminal Vin.
After the power of the power supply terminal Vin is lost, the control module 110 still continues to detect the voltage of the power supply terminal Vin in real time. When the voltage of the power supply terminal Vin is detected to be higher than or equal to the rated value, the power supply terminal Vin is judged to be powered on. The control module 110 outputs a control signal to the switching module 130, so that the switching module 130 is switched from the on state to the off state, thereby disconnecting the connection between the energy storage module 120 and the customer premises load 200, and the energy storage module 120 stops supplying power to the customer premises load 200. Meanwhile, since the power supply terminal Vin is powered on, the power supply terminal Vin can directly supply power to the user-side load 200, and meanwhile, the power supply terminal Vin can also charge the energy storage module 120.
In this embodiment, when the power supply terminal Vin is detected to be powered on, the automatic control switching module 130 is turned off, so that the energy storage module 120 is charged without manual control by a user, which is more intelligent and more convenient for the user to use.
Further, in order to further improve the power storage capability of the backup energy storage device and prolong the power supply time of the backup energy storage device, based on the first or second embodiment of the backup energy storage device of the digital subscriber line access device of the present invention, the present invention further provides a third embodiment of the backup energy storage device of the digital subscriber line access device, referring to fig. 3, fig. 3 is a schematic diagram of the second embodiment of the backup energy storage device of the digital subscriber line access device of the present invention, in the third embodiment, the energy storage module 120 includes a voltage boosting unit 121 connected to the power supply terminal Vin, a first energy storage unit 122 and a voltage reducing unit 123 respectively connected to the output terminal of the voltage boosting unit 121, and the output terminal of the voltage reducing unit 123 is connected to the switching module 130.
In this embodiment, the voltage boosting unit 121 may be a voltage boosting circuit, the voltage reducing unit 123 may be a voltage reducing circuit, and the first energy storing unit 122 may be a capacitor.
When the power supply end Vin normally supplies power, the voltage boosting unit 121 can boost the voltage provided by the power supply end Vin, and the boosted dc voltage is provided to the first energy storage unit 122, so that the first energy storage unit 122 stores energy by using the boosted dc voltage, and the electricity storage capacity of the first energy storage unit 122 is greatly improved. The voltage reducing unit 123 receives the electric energy released by the first energy storage unit 122, and reduces the received dc voltage to the rated voltage of the dc bus voltage, so that the voltage output by the energy storage module 120 is suitable for the user-side load 200.
Further, in order to further improve the power storage capacity of the standby energy storage device and prolong the power supply time of the standby energy storage device, the energy storage module 120 further includes a second energy storage unit 124 connected to the output end of the voltage reduction unit 123. The second energy storage unit 124 may be a capacitor. The second energy storage unit 124 receives the dc voltage stepped down by the step-down unit 123, and stores energy. When the power supply terminal Vin loses power, the first energy storage unit 122 and the second energy storage unit 124 together supply power to the user-side load 200. Therefore, the power storage capacity of the standby energy storage device is further improved, and the power supply duration of the standby energy storage device is prolonged.
Further, in order to further extend the duration of the power supply of the backup energy storage device, based on any one of the first to third embodiments of the backup energy storage device of the digital subscriber line access device of the present invention, the present invention further provides a fourth embodiment of the backup energy storage device of the digital subscriber line access device, in the fourth embodiment, the control module 110 is further configured to send a power-off instruction to a first preset load in the user-side load 200 when detecting that the power-down of the power supply terminal Vin is detected, so that the first preset load performs power-off processing according to the power-off instruction.
In this embodiment, the first preset load may be set according to the actual needs of the user. It may be automatically preset for the system or it may also be preset for the user. For example, the first preset load may be non-critical hardware functional modules and units that do not affect the main functions and performance of the system, such as a DSL chipset in a standby state and a debug serial port. Debug port, boot, flash, etc.
The control module 110 may transmit the power-off command to the first preset load through wireless communication or wired communication. After the first preset load receives the power-off instruction, the power supply is automatically turned off, so that the first preset load is in a power-off state and stops working, load reduction operation is automatically completed on the user side load 200, unnecessary loads can be automatically powered off, only the loads necessary for the user are reserved for continuous working, and the power supply duration of the standby energy storage device is effectively prolonged.
Further, the control module 110 is further configured to send a power-on instruction to a first preset load in the user-side load 200 when it is detected that the power supply terminal Vin is powered on, so that the first preset load performs power-on processing according to the power-on instruction. The control module 110 may send a power-on command to the first preset load through wireless communication or wired communication. After the first preset load receives the power-on instruction, the power supply is automatically started to be in a power-on state, and the power supply is started to work, so that a user does not need to manually start the first preset load.
Further, in order to further extend the duration of the power supply of the backup energy storage device, based on any one of the first to third embodiments of the backup energy storage device of the digital subscriber line access equipment of the present invention, the present invention further provides a fifth embodiment of the backup energy storage device of the digital subscriber line access equipment, in the fifth embodiment, the control module 110 is further configured to control the switching module 130 to be connected to a second preset load of the customer premise loads 200 and control the switching module 130 to be disconnected from other customer premise loads 200 except the second preset load when detecting that the power failure of the power supply terminal Vin occurs, so that the energy storage module 120 utilizes the stored electric energy to supply power to the second preset load.
In this embodiment, the second preset load may be set according to the actual needs of the user. It may be automatically preset for the system or it may also be preset for the user. For example, the second preset load may be a telephone device, a width device, or the like.
The switching module 130 may be configured with multiple switches, and each switch is correspondingly connected to a corresponding client load 200. When detecting that the power supply terminal Vin is powered down, the control module 110 may control the switching module 130 to switch on only the switch connected with the second preset load, but not switch on the switches corresponding to the other user-side loads 200 except the second preset load, so that the energy storage module 120 only supplies power to the second preset load, and the power supply duration of the standby energy storage device is effectively prolonged.
Further, when detecting that the power supply terminal Vin is powered on, the control module 110 controls the switching module 130 to disconnect the second preset load. So that the power supply terminal Vin directly supplies power to the second predetermined load.
It should be noted that the fourth and fifth embodiments of the backup energy storage means of the digital subscriber line access device described above may be used in combination.
The invention further provides a standby energy storage control method of the digital subscriber line access equipment. The backup energy storage control method may be implemented based on the backup energy storage device of the digital subscriber line access device in the foregoing embodiments. The standby energy storage control method of the digital subscriber line access equipment provided by the invention comprises the following steps:
when detecting that the power-down of the power supply terminal Vin of the access device occurs, the switching module 130 connected between the user-side load 200 and the energy storage module 120 is controlled to switch from the off state to the on state, so that the energy storage module 120 supplies power to the user-side load 200 by using the stored electric energy.
When the power supply terminal Vin supplies power normally, as shown in fig. 2, the power supply terminal Vin can directly supply power to the user-side load 200 through the line a. At this time, the switching module 130 is in an off state. The power supply terminal Vin charges the energy storage module 120, so that the energy storage module 120 stores electric energy. Since the switching module 130 is in the off state, the energy storage module 120 does not supply power to the customer premises load 200 at this time, and only the power supply terminal Vin supplies power to the customer premises load 200.
And detecting the Vin voltage of the power supply end in real time. And when the voltage of the power supply terminal Vin is detected to be lower than the rated value, judging that the power of the power supply terminal Vin is cut off. Then, a control signal is output to the switching module 130, so that the switching module 130 is in a conducting state, and the energy storage module 120 can utilize the stored electric energy to supply power to the user-side load 200. Therefore, when the power supply terminal Vin of the digital subscriber line access device is abnormally powered, the energy storage module 120 can continuously supply power to the user side load 200, and the power supply reliability of the digital subscriber line access device is effectively improved. The standby energy storage device provided by the embodiment has the advantages of low cost and simple structure.
The standby energy storage control method of the digital subscriber line access equipment provided by the invention controls the switching module 130 connected between the user side load 200 and the energy storage module 120 to be switched from the off state to the on state when detecting that the power supply end Vin of the access equipment is powered down, so that the energy storage module 120 utilizes the stored electric energy to supply power to the user side load 200, and therefore, when the power supply end Vin of the digital subscriber line access equipment is abnormally supplied with power, the standby energy storage device can be used for continuously supplying power to the user side load 200, the power supply reliability of the digital subscriber line access equipment is effectively improved, the realization structure is simple, and the cost is lower.
Further, in order to further improve reliability and intelligence of power supply to the digital subscriber line access device, based on the first embodiment of the standby energy storage control method for the digital subscriber line access device of the present invention, the present invention further provides a second embodiment of the standby energy storage control method for the digital subscriber line access device, and in the second embodiment, the standby energy storage control method for the digital subscriber line access device further includes: when detecting that the power supply terminal Vin of the access device is powered on, controlling the switching module 130 to be switched off, so that the energy storage module 120 stores the electric energy provided by the power supply terminal Vin.
And after the power failure of the power supply terminal Vin, the voltage of the power supply terminal Vin is still continuously detected in real time. When the voltage of the power supply terminal Vin is detected to be higher than or equal to the rated value, the power supply terminal Vin is judged to be powered on. Then, a control signal is output to the switching module 130, so that the switching module 130 is switched from the on state to the off state, thereby disconnecting the connection between the energy storage module 120 and the user-side load 200, and the energy storage module 120 stops supplying power to the user-side load 200. Meanwhile, since the power supply terminal Vin is powered on, the power supply terminal Vin can directly supply power to the user-side load 200, and meanwhile, the power supply terminal Vin can also charge the energy storage module 120.
In this embodiment, when the power supply terminal Vin is detected to be powered on, the automatic control switching module 130 is turned off, so that the energy storage module 120 is charged without manual control by a user, which is more intelligent and more convenient for the user to use.
Further, in order to further extend the duration of the power supply of the backup energy storage device, based on the first or second embodiment of the backup energy storage control method for the digital subscriber line access device of the present invention, the present invention further provides a third embodiment of the backup energy storage control method for the digital subscriber line access device, in the third embodiment, while performing the step of controlling the switching module 130 connected between the customer premises load 200 and the energy storage module 120 to switch from the off state to the on state, so that the energy storage module 120 supplies power to the customer premises load 200 by using the stored electric energy, the following steps are further performed: and sending a power-off instruction to a first preset load in the user side load 200, so that the first preset load can perform power-off processing according to the power-off instruction.
In this embodiment, the first preset load may be set according to the actual needs of the user. It may be automatically preset for the system or it may also be preset for the user. For example, the first preset load may be non-critical hardware functional modules and units that do not affect the main functions and performance of the system, such as a DSL chipset in a standby state and a debug serial port. Debug port, boot, flash, etc.
The power-off command may be transmitted to the first preset load through wireless communication or wired communication. After the first preset load receives the power-off instruction, the power supply is automatically turned off, so that the first preset load is in a power-off state and stops working, load reduction operation is automatically completed on the user side load 200, unnecessary loads can be automatically powered off, only the loads necessary for the user are reserved for continuous working, and the power supply duration of the standby energy storage device is effectively prolonged.
Further, when it is detected that the power supply terminal Vin is powered on, a power-on instruction may be sent to a first preset load in the user-side load 200, so that the first preset load may perform power-on processing according to the power-on instruction. The power-on command may be transmitted to the first preset load through wireless communication or wired communication. After the first preset load receives the power-on instruction, the power supply is automatically started to be in a power-on state, and the power supply is started to work, so that a user does not need to manually start the first preset load.
Further, in order to further extend the duration of the power supply of the backup energy storage device, based on the first or second embodiment of the backup energy storage control method for digital subscriber line access equipment of the present invention, the present invention further provides a fourth embodiment of the backup energy storage control method for digital subscriber line access equipment, in the fourth embodiment, the step of controlling the switching module 130 connected between the customer premises load 200 and the energy storage module 120 to switch from the off state to the on state, so that the energy storage module 120 utilizes the stored electric energy to supply power to the customer premises load 200 includes: the switching module 130 is controlled to be connected to a second preset load of the customer premises loads 200, and the switching module 130 is controlled to be disconnected from other customer premises loads 200 except the second preset load, so that the energy storage module 120 supplies power to the second preset load by using the stored electric energy.
In this embodiment, the second preset load may be set according to the actual needs of the user. It may be automatically preset for the system or it may also be preset for the user. For example, the second preset load may be a telephone device, a width device, or the like.
The switching module 130 may be configured with multiple switches, and each switch is correspondingly connected to a corresponding client load 200. When detecting that the power supply terminal Vin is powered down, the switching module 130 may be controlled to switch on only the switch connected with the second preset load, but not switch on the switches corresponding to the other user-side loads 200 except the second preset load, so that the energy storage module 120 only supplies power to the second preset load, and the power supply duration of the standby energy storage device is effectively prolonged.
Further, when it is detected that the power supply terminal Vin is powered on, the switching module 130 may be controlled to disconnect the second preset load. So that the power supply terminal Vin directly supplies power to the second predetermined load.
It should be noted that the third and fourth embodiments of the backup energy storage control method for digital subscriber line access equipment described above can be used in combination.
Referring to fig. 4, fig. 4 is a diagram of an application circuit structure of a backup energy storage device of a digital subscriber access device according to the present invention, and the following provides a specific embodiment of the backup energy storage device of the digital subscriber access device:
the standby energy storage device comprises a Boost converter Boost, a Buck converter Buck, an energy storage capacitor A, an energy storage capacitor B, a switching circuit Q, a power failure detection circuit and a delay control module 110, wherein the voltage of a direct current bus is 12V. The switching circuit Q may be a MOS transistor, or may be a switching device such as a relay.
When the voltage of the direct current bus is normal, the switching circuit Q is switched off, and the direct current bus can directly supply power for the load. Boost raises the voltage of the direct current bus to 60V to charge the energy storage capacitor A, Buck lowers the voltage of 60V to 12V and charges the energy storage capacitor B.
When the power failure detection circuit detects power failure of the direct current bus, a control signal is sent to the switching circuit Q and the delay control circuit. After receiving the control signal, the switching circuit Q is switched from a disconnected state to a connected state, so that the energy storage capacitor A releases the stored electric energy to the Buck circuit and finally supplies power to the load, and the energy storage capacitor B also releases the stored electric energy to supply power to the load.
Optionally, as shown in fig. 4, a diode D1 is further connected between the switching circuit Q and the load for preventing the dc bus voltage from flowing back to the power down holding circuit. Optionally, the diode D1 may be replaced by a MOS transistor.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.
In addition, the descriptions relating to "first", "second", etc. in the present invention are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit ly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should be considered to be absent and not within the protection scope of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A standby energy storage device of digital subscriber line access equipment is characterized in that the standby energy storage device of the digital subscriber line access equipment comprises a control module, an energy storage module connected with a power supply end and a switching module connected with the output end of the energy storage module, wherein the output end of the switching module is connected with a user side load; the input end of the control module is connected with the power supply end, and the output end of the control module is connected with the control end of the switching module; when the power supply end is powered on, the switching module is in a disconnected state;
the energy storage module is used for storing electric energy provided by the power supply end when the power supply end is powered on;
the control module is used for controlling the switching module to be switched from a disconnected state to a connected state when the power failure of the power supply end is detected, so that the energy storage module supplies power to the user side load by using the stored electric energy;
the energy storage module comprises a boosting unit connected with the power supply end, a first energy storage unit and a voltage reduction unit, the first energy storage unit and the voltage reduction unit are respectively connected with the output end of the boosting unit, and the output end of the voltage reduction unit is connected with the switching module;
the energy storage module further comprises a second energy storage unit connected with the output end of the voltage reduction unit, the second energy storage unit receives the direct-current voltage subjected to voltage reduction by the voltage reduction unit and stores energy, and when the power supply end is powered down, the power supply end and the first energy storage unit jointly supply power to the user side load.
2. The standby energy storage device of digital subscriber line access equipment according to claim 1, wherein said control module is further configured to control said switching module to switch from an on state to an off state when detecting that said power supply terminal is powered on, so that said energy storage module stores the electric energy provided by said power supply terminal.
3. The standby energy storage device of a digital subscriber line access device according to claim 1 or 2, wherein the control module is further configured to send a power-off instruction to a first preset load in the user-side load when detecting that a power-off of a power supply terminal occurs, so that the first preset load performs power-off processing according to the power-off instruction.
4. The backup energy storage device of a digital subscriber line access device according to claim 3, wherein said control module is further configured to send a power-on instruction to a first preset load in said user-side load when detecting that a power-on terminal is powered on, so that said first preset load performs power-on processing according to said power-on instruction.
5. The backup energy storage device of a digital subscriber line access device according to claim 1 or 2, wherein the control module is further configured to control the switching module to connect to a second predetermined load among the customer premises loads and to disconnect the switching module from other customer premises loads except the second predetermined load when detecting that the power supply terminal is powered down, so that the energy storage module supplies power to the second predetermined load using the stored electric energy.
6. A method of backup energy storage control for a backup energy storage device of a digital subscriber line access equipment according to any of claims 1-5, comprising: when the power failure of the power supply end of the access equipment is detected, the switching module connected between the user end load and the energy storage module is controlled to be switched from a disconnected state to a connected state, so that the energy storage module supplies power to the user end load by using the stored electric energy.
7. The method for controlling standby energy storage of a standby energy storage device of a digital subscriber line access device according to claim 6, wherein the method for controlling standby energy storage of a digital subscriber line access device further comprises: and when the power supply end of the access equipment is detected to be powered on, the switching module is controlled to be switched off, so that the energy storage module stores the electric energy provided by the power supply end.
8. The method according to claim 6 or 7, wherein the step of controlling the switching module connected between the customer premise load and the energy storage module to switch from an off state to an on state is performed, so that the energy storage module supplies power to the customer premise load using the stored energy, and simultaneously the following steps are performed: and sending a power-off instruction to a first preset load in the user side loads so that the first preset load can perform power-off processing according to the power-off instruction.
9. The method according to claim 6 or 7, wherein the step of controlling the switching module connected between the customer premise load and the energy storage module to switch from an off state to an on state, so that the energy storage module supplies power to the customer premise load using the stored energy comprises: and controlling the switching module to be connected with a second preset load in the user side loads and controlling the switching module to be disconnected with other user side loads except the second preset load, so that the energy storage module supplies power to the second preset load by using the stored electric energy.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610204008.9A CN107294196B (en) | 2016-03-31 | 2016-03-31 | Standby energy storage device of digital subscriber line access equipment and control method thereof |
| PCT/CN2016/084548 WO2017166426A1 (en) | 2016-03-31 | 2016-06-02 | Backup energy-storage apparatus for digital-subscriber-line access device, and method for controlling same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610204008.9A CN107294196B (en) | 2016-03-31 | 2016-03-31 | Standby energy storage device of digital subscriber line access equipment and control method thereof |
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| CN107294196A CN107294196A (en) | 2017-10-24 |
| CN107294196B true CN107294196B (en) | 2022-04-19 |
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| CN108023796B (en) * | 2018-01-12 | 2023-05-16 | 上海联虹技术有限公司 | Client terminal device, signal switching control method, control device, and storage medium |
| CN108509356B (en) * | 2018-05-24 | 2024-03-26 | 湖南君瀚信息技术有限公司 | Solid state disk with multistage power-down protection |
| CN109347200A (en) * | 2018-12-17 | 2019-02-15 | 雷博塔斯(广州)科技有限公司 | A kind of power accessories |
| CN110401260B (en) * | 2019-07-19 | 2023-08-22 | 广东浪潮大数据研究有限公司 | Server standby power supply and server power supply |
| CN114374263B (en) * | 2021-12-10 | 2023-12-22 | 中国商用飞机有限责任公司 | Power supply circuit, aircraft and power supply method |
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| CN107294196A (en) | 2017-10-24 |
| WO2017166426A1 (en) | 2017-10-05 |
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