CN108377303A - The method of supplying power to of modem and modem - Google Patents
The method of supplying power to of modem and modem Download PDFInfo
- Publication number
- CN108377303A CN108377303A CN201810046173.5A CN201810046173A CN108377303A CN 108377303 A CN108377303 A CN 108377303A CN 201810046173 A CN201810046173 A CN 201810046173A CN 108377303 A CN108377303 A CN 108377303A
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- power supply
- modem
- capacitor cell
- processor
- protection unit
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- 238000000034 method Methods 0.000 title claims abstract description 19
- 239000003990 capacitor Substances 0.000 claims abstract description 107
- 238000001514 detection method Methods 0.000 claims abstract description 60
- 238000012360 testing method Methods 0.000 claims abstract description 22
- 238000012512 characterization method Methods 0.000 claims abstract description 9
- 239000004065 semiconductor Substances 0.000 claims description 38
- 230000005611 electricity Effects 0.000 claims description 21
- 238000010586 diagram Methods 0.000 description 18
- 238000009413 insulation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
- H04M11/06—Simultaneous speech and data transmission, e.g. telegraphic transmission over the same conductors
- H04M11/066—Telephone sets adapted for data transmision
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/02—Details
- H04L12/10—Current supply arrangements
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Protection Of Static Devices (AREA)
- Telephonic Communication Services (AREA)
Abstract
The invention discloses a kind of modems, including：Radio-frequency module, network interface processor, power supply interface, power supply module；Wherein, power supply interface, for connecting external power supply；Power supply module, for being powered for modem by power supply interface；Power supply module, including：Detection unit, capacitor cell, power supply protection unit；Detection unit generates the first signal, and the first signal is sent to processor according to testing result for detecting whether power supply interface connects external power supply；First characterization testing result；Processor, for according to the first signal, generating power supply instruction, and power supply instruction is sent to power supply protection unit；Power supply protection unit connects capacitor cell and processor for responding power supply instruction so that capacitor cell is powered for modem；Capacitor cell for connecting external power supply by power supply interface with storing electrical energy, and is powered for modem.The invention also discloses a kind of method of supplying power to of modem.
Description
Technical field
The present invention relates to the communication technology more particularly to the method for supplying power to of a kind of modem and modem.
Background technology
Existing cable modem is without internal battery, when will not work at once after external power supply power-fail,
It can not be notified in other equipment or control by cable, cable etc. by itself power down and other effective informations are instant
The heart.
Invention content
In view of this, the main purpose of the present invention is to provide the suppliers of electricity of a kind of modem and modem
Method.
In order to achieve the above objectives, the technical proposal of the invention is realized in this way：
An embodiment of the present invention provides a kind of modem, the modem includes：Radio-frequency module, network interface, the tune
Modulator-demodulator further includes processor, power supply interface, power supply module；Wherein,
The power supply interface, for connecting external power supply；
The power supply module, for being powered for the modem by the power supply interface；The power supply module, including：
Detection unit, capacitor cell, power supply protection unit；Wherein,
The detection unit generates the first letter according to testing result for detecting whether the power supply interface connects external power supply
Number, and first signal is sent to the processor；The first characterization testing result；
The processor, for according to first signal, generating power supply instruction, and power supply instruction is sent to the confession
Electric protection unit；
The power supply protection unit connects the capacitor cell and the processor so that institute for responding the power supply instruction
Capacitor cell is stated to power for the modem；
The capacitor cell for connecting external power supply by the power supply interface with storing electrical energy, and is the modulation /demodulation
Device is powered.
In said program, whether the detection unit judges the first voltage less than default for detecting first voltage
Voltage value determines that the first voltage is less than the preset voltage value, then low level is generated, as first signal.
In said program, the detection unit, including detection chip, the detection chip, including：Second pin, third
First pin of pin and ground connection；Wherein,
The detection chip, the voltage for detecting the third pin, as the first voltage；Judge the first voltage
Whether it is less than preset voltage value, determines that the first voltage is less than the preset voltage value, then generate low level, as described the
One signal；First signal is sent to processor by the second pin.
In said program, the power supply module further includes power supply protection unit；The power supply protection unit, including：MOS
Pipe；
The metal-oxide-semiconductor connects the capacitor cell and processor so that the electricity for receiving and responding the power supply instruction
Hold unit to power for the modem；
The power supply protection unit, further includes diode；
The diode, for the capacitance list described in the power supply interface and external power supply disconnection, the metal-oxide-semiconductor access failure
When member and processor, the capacitor cell and processor are connected so that the capacitor cell is powered for the modem.
In said program, the capacitor cell includes at least one capacitance；
At least one capacitance for connecting external power supply by the power supply interface with storing electrical energy, and is the modulation
Demodulator is powered.
The embodiment of the present invention additionally provides a kind of method of supplying power to of modem, and the modem includes：Radio frequency
Module, network interface, processor, connect external power supply power supply interface, by the power supply interface be the modem power supply
Power supply module；The power supply module, including：Detection unit, capacitor cell, power supply protection unit；The method includes：
The detection unit detects whether the power supply interface connects external power supply, generates the first signal according to testing result, and
First signal is sent to the processor；The first characterization testing result；
The processor generates power supply instruction, and power supply instruction is sent to the power supply and is protected according to first signal
Protect unit；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem.
In said program, the detection unit detects whether the power supply interface connects external power supply, according to testing result
The first signal is generated, including：
The detection unit detects first voltage, judges whether the first voltage is less than preset voltage value, determines described first
Voltage is less than the preset voltage value, then low level is generated, as first signal.
In said program, the power supply protection unit, including：Metal-oxide-semiconductor；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem, including：
The metal-oxide-semiconductor receives and responds the power supply instruction, connects the capacitor cell and processor so that the capacitor cell
It powers for the modem；
The power supply protection unit, further includes diode；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem, further includes：
The diode disconnects in the power supply interface and the external power supply, capacitor cell described in the metal-oxide-semiconductor access failure and
When processor, the capacitor cell and processor are connected so that the capacitor cell is powered for the modem.
In said program, the power supply module further includes power supply protection unit；The power supply protection unit, including：Two poles
Pipe and metal-oxide-semiconductor；
The power supply protection unit connects the capacitor cell and the processor, including：
The diode connects the capacitor cell and processor so that the capacitor cell is powered for the modem；
The metal-oxide-semiconductor receives and responds the power supply instruction, connects the capacitor cell and processor so that the capacitor cell
It powers for the modem.
In said program, the capacitor cell includes at least one capacitance；
The capacitor cell is powered by the power supply interface storing electrical energy, and for the modem, including：
At least one capacitance connects external power supply with storing electrical energy by the power supply interface, and is the modem
Power supply.
The method of supplying power to of modem and modem that the embodiment of the present invention is provided, the modem packet
It includes：Radio-frequency module, network interface further include processor, power supply interface, power supply module；Wherein, the power supply interface, it is outer for connecting
Connect power supply；The power supply module, for being powered for the modem by the power supply interface；The power supply module, packet
It includes：Detection unit, capacitor cell, power supply protection unit；Wherein, the detection unit, for whether detecting the power supply interface
External power supply is connected, generates the first signal according to testing result, and first signal is sent to the processor；Described
One characterization testing result；The processor, for according to first signal, generating power supply instruction, and by the power supply
Instruction is sent to the power supply protection unit；The power supply protection unit connects the capacitance for responding the power supply instruction
Unit and the processor so that the capacitor cell is powered for the modem；The capacitor cell, for passing through
It states power supply interface and connects external power supply with storing electrical energy, and power for the modem.As it can be seen that the embodiment of the present invention,
It works on after a loss of power a period of time, during this period of time, modulatedemodulate without using realization modem under the early period of battery
Adjust device can itself power down and other effective informations it is instant pass through the notices such as cable, cable to other equipment or control
Center；
In addition to this, the embodiment of the present invention can change the charge and discharge time by different capacitance sizes；Power supply protection list
Member provides protection mechanism so that circuit is safe to use, is not in the problem of capacitance is damaged because being more than its pressure voltage；Control letter
Single, only two universal input and output ports carry out the switching of high ground level.
Description of the drawings
Fig. 1 is the structural schematic diagram of modem provided in an embodiment of the present invention；
Fig. 2 is the circuit diagram of detection unit provided in an embodiment of the present invention；
Fig. 3 is the circuit diagram of capacitor cell provided in an embodiment of the present invention；
Fig. 4 is the circuit diagram of power supply protection unit provided in an embodiment of the present invention；
Fig. 5 is the circuit diagram of power supply module provided in an embodiment of the present invention；
Fig. 6 is operating voltage schematic diagram provided in an embodiment of the present invention；
Fig. 7 is sequence diagram schematic diagram provided in an embodiment of the present invention；
Fig. 8 is the flow diagram of the method for supplying power to of modem provided in an embodiment of the present invention.
Specific implementation mode
In various embodiments of the present invention, the modem includes：Radio-frequency module, network interface, further include processor,
Power supply interface, power supply module；Wherein, the power supply interface, for connecting external power supply；The power supply module, for passing through
Power supply interface is stated to power for the modem；The power supply module, including：Detection unit, capacitor cell, power supply protection list
Member；Wherein, the detection unit generates according to testing result for detecting whether the power supply interface connects external power supply
One signal, and first signal is sent to the processor；The first characterization testing result；The processor,
For according to first signal, generating power supply instruction, and power supply instruction is sent to the power supply protection unit；It is described
Power supply protection unit connects the capacitor cell and the processor so that the capacitance list for responding the power supply instruction
Member is that the modem is powered；The capacitor cell connects external power supply to save electricity for passing through the power supply interface
Can, and power for the modem.
With reference to embodiment, the present invention is further described in more detail.
Fig. 1 is the structural schematic diagram of modem provided in an embodiment of the present invention；As shown in Figure 1, the modulation /demodulation
Device includes：Radio-frequency module, network interface；The radio-frequency module and the network interface, for carrying out data receiving and transmission；
The modem further includes processor, power supply interface, power supply module；Wherein,
The power supply interface, for connecting external power supply；
The power supply module, for being powered for the modem by the power supply interface；The power supply module, including：
Detection unit, capacitor cell, power supply protection unit；Wherein,
The detection unit generates the first letter according to testing result for detecting whether the power supply interface connects external power supply
Number, and first signal is sent to the processor；The first characterization testing result；
The processor, for according to first signal, generating power supply instruction, and power supply instruction is sent to the confession
Electric protection unit；
The power supply protection unit connects the capacitor cell and the processor so that institute for responding the power supply instruction
Capacitor cell is stated to power for the modem；
The capacitor cell for connecting external power supply by the power supply interface with storing electrical energy, and is the modulation /demodulation
Device is powered.
Specifically, the detection unit judges whether first voltage is less than predeterminated voltage for detecting the first voltage
Value determines that the first voltage is less than the preset voltage value, then low level is generated, as first signal.
Specifically, the detection unit, including detection chip, the detection chip, including：Second pin, third are drawn
First pin of foot and ground connection；Wherein,
The detection chip, the voltage for detecting the third pin, as the first voltage；Judge the first voltage
Whether it is less than preset voltage value, determines that the first voltage is less than the preset voltage value, then generate low level, as described the
One signal；First signal is sent to processor by the second pin.
Here, the detection unit further includes first resistor and second resistance, the first resistor and the second resistance
For being divided to external power supply so that the voltage after partial pressure meets the voltage range that the detection chip requires；
The detection chip detects the voltage after the partial pressure, judges whether the voltage after the partial pressure is less than preset voltage value,
It determines that the voltage after the partial pressure is less than the preset voltage value, then low level is generated, as first signal；Described first
Signal is sent to processor by the second pin.
Here, when modem is again coupled to external power supply, the detection chip determines the voltage after the partial pressure
Higher than the preset voltage value, then high level is generated, as the second signal；The second signal passes through the second pin
It is sent to processor；To notify the processor to connect external power supply.
Specifically, the detection chip determines that the first voltage is less than the preset voltage value, it is determined that the tune
Modulator-demodulator is not connected with external power supply, generates low level, to notify modem described in the processor to power off；
The detection chip determines that the first voltage is higher than the preset voltage value, it is determined that the modem connection is outer
Power supply is connect, high level is generated, to notify modem described in the processor to connect power supply.
Specifically, the power supply protection unit, including：Metal-oxide-semiconductor；
The metal-oxide-semiconductor connects the capacitor cell and processor so that the electricity for receiving and responding the power supply instruction
Hold unit to power for the modem.
The power supply protection unit further includes：Diode；
The diode, for the capacitance list described in the power supply interface and external power supply disconnection, the metal-oxide-semiconductor access failure
When member and processor, the capacitor cell and processor are connected so that the capacitor cell is powered for the modem.
Specifically, the capacitor cell includes at least one capacitance；
At least one capacitance for connecting external power supply by the power supply interface with storing electrical energy, and is the modulation
Demodulator is powered.
Specifically, it is assumed that when connection external power supply, modem can in 12V operating at voltages, when with external power supply
It disconnects, modem is powered by capacitor cell, can be in 5V operating at voltages；
Original state is that power supply power supply interface connects external power supply to power, and can be powered here by the power supply adaptor of 12V, together
When by capacitance module give the capacitance module at least one capacitor charging for including with constant-voltage mode, until fully charged.
When external power supply power down, at least one capacitance first passes through the diode discharge of the power supply protection unit,
Discharge voltage can about be powered with 5V to modem；
Meanwhile detection module detects that power supply has dropped to 5V by 12V, and the first signal notifier processes are sent by universal input port
Device after the processor receives the first signal, sends power supply instruction and gives power supply protection unit so that at least one capacitance
It skips diode directly to power, i.e., the described metal-oxide-semiconductor conducting；Until minimum work electricity of the capacitance voltage less than cable modem
When pressure, modem does not work.
In this fact Example, considering that battery is of high cost, complex circuit, there are resource waves on the time of continue working after power down
The problems such as taking several seconds working times were continued after power down to realize by large bulk capacitance, and circuit is simple.
Fig. 2 is the circuit diagram of detection unit provided in an embodiment of the present invention；As shown in Fig. 2, the detection unit, packet
It includes：Detection chip U1；
The detection chip U1, the voltage value VCC for detecting third pin, when VCC voltage values are set in advance higher than chip interior
The voltage value determined and preserved（The i.e. described preset voltage value）When chip second pin RESET# export high level, otherwise the low electricity of output
Flat, by testing result, by GPIO_1, this root line notifies processor.
In figure, the VSYS is the operating voltage value of modem, when power supply adaptor is powered, such as power adaptation
The voltage that device provides is 12V, then VSYS is 12V；
It when power supply adaptor is not powered, is powered by capacitor cell, then VSYS is the voltage that capacitor cell provides；
When it is above-mentioned do not power both when, then VSYS be 0V.
The detection unit further includes：Resistance R1 and resistance R3；
Here, the resistance R1 and resistance R3 is divider resistance, is used for the voltage phase of the operating voltage VSYS of modem
It should reduce, among the voltage range to reach detection chip U1 supports；The detection chip U1 is knowing resistance R1 and resistance R3
On the basis of, it is the value that can determine voltage VSYS according to the voltage value VCC of the third pin；It can be completed to modem
Current operating voltage, to determine whether connection external power supply, to realize the detection of operating voltage.
Fig. 3 is the circuit diagram of capacitor cell provided in an embodiment of the present invention；As shown in figure 3, the capacitor cell, packet
It includes：Chip U2, resistance R4, resistance R5, resistance R6, capacitance C6, capacitance C8；Wherein,
The chip U2 is to the chip of capacitor charging；There are four pin, second pins to be connected to after being connected with the 4th pin for tool
One end of resistance R4, the first pin are connected to the other end of resistance R4；First pin is also connected with resistance R5, another terminations of resistance R5
Ground；Second pin and the 4th pin are also connected with resistance R6, and the resistance R6 other ends connect capacitance C6 and capacitance C8；
Here it is possible to by adjusting the resistance value of resistance R4 and R5, the voltage of output is adjusted；
The resistance R6 is current-limiting resistance, prevents charging current is excessive from charging capacitor being caused to damage；
The capacitance C6 and C8 is used for storing electric energy to discharge；Such as it is 4 farads super that capacitance, which may be used,
Capacitance.Here it is possible to the time of electric discharge be adjusted by increasing and decreasing capacitance quantity or adjustment capacitance, by adjusting the electricity of resistance R6
Resistance value adjusts the charging current of C8, C6 capacitance, to adjust the charging time.
Fig. 4 is the circuit diagram of power supply protection unit provided in an embodiment of the present invention；As shown in figure 4, the power supply is protected
Unit is protected, including：Metal-oxide-semiconductor Q1 and triode Q4；
The power supply protection unit can also include：Diode D3, triode Q2, triode Q3, resistance R8, resistance R9, resistance
R10, resistance R11, resistance R12；When including above-mentioned device, the diode D3, triode Q2, triode Q3, resistance R8, electricity
Resistance R9, resistance R10, resistance R11, resistance R12 can play a protective role；Specifically：
The both ends of the diode D3 connect the source electrode and drain electrode of the metal-oxide-semiconductor Q1, in parallel；The drain electrode of the metal-oxide-semiconductor Q1
Connect capacitor cell；
The collection of the grid connection resistance R11 of the metal-oxide-semiconductor Q1 and the other end connecting triode Q4 of resistance R9, the resistance R11
Electrode, the emitter ground connection of the two switches Q4；
The source electrode connection resistance R9 of the metal-oxide-semiconductor, the emitter and resistance R8 of triode Q2；The resistance R8 other ends connection three
The base stage of pole pipe Q2, resistance R10, the collector of the other end connecting triode Q3 of resistance R10, the emitter of the triode Q3
Ground connection, base stage connect resistance R7 and resistance R12, and the resistance R7 other ends connect VSYS, the resistance R12 other ends ground connection.
Here, the metal-oxide-semiconductor Q1 and triode Q4, for connecting the capacitor cell and processor, to realize capacitance
Electric discharge；
The diode D3, for also not sending signal to the metal-oxide-semiconductor Q1 to connect in modem power down, processor
When stating capacitor cell, capacitor cell and processor are connected by diode, the capacitor cell is made to power for modem；From
And ensure the continuity of modem work, can prevent capacitance terminal from directly pouring into 12V high pressures leads to its damage.
The resistance R9, resistance R11 are specifically used for the grid of setting metal-oxide-semiconductor Q1 for being divided to operating voltage VSYS
Pole tension；
The resistance R7, resistance R12 are specifically used for the base stage of setting triode Q3 for being divided to operating voltage VSYS
Voltage value；
The resistance R8, resistance R10 are specifically used for setting triode Q2 base stage electricity for being divided to operating voltage VSYS
Pressure value.
Described triode Q2, Q3 play on-off action, are protected to capacitance in conjunction with above-mentioned resistance；It is detailed to switching process below
It describes in detail bright：
When the power supply protection unit is passed through in the capacitance C6 of capacitor cell, capacitance C8 power supplies, pass through the partial pressure of resistance R7, R12
And the unlocking conditions of triode Q3 ontologies realizes cut-offfing for triode Q3；
When operating voltage VSYS is more than capacitance rated insulation voltage, triode Q3 is opened, and resistance R10 is connected to GND（0V level points）, and
Operating voltage VSYS is divided by resistance R8, R10 afterwards, triode Q2 meets turn-on condition, opens, and resistance R9 is equivalent to
Short circuit so that the grid voltage of metal-oxide-semiconductor Q1 is operating voltage VSYS, at this time no matter processor is sent to triode by GPIO_2
Q4's is switched on or off request, and metal-oxide-semiconductor Q1 will not be opened（Here, metal-oxide-semiconductor unlocking condition is that gate source voltage is more than cut-off electricity
Pressure, gate source voltage is 0V at this time）, to achieve over the defencive function that capacitance rated insulation voltage metal-oxide-semiconductor Q1 is not opened.Here, institute
Power supply protection unit is stated to be set as connecting external power supply when modem（Such as detect that operating voltage is higher than 5.5V）When, even if
Processor control capacitor cell turns on the switch electric discharge, and foregoing circuit will not be opened, and can be effectively protected capacitance by high crushing
It is bad.
When operating voltage VSYS is less than capacitance rated insulation voltage, triode Q3 is not opened, and resistance R8 both end voltages are all works
Make voltage VSYS, triode Q2 is not opened, and operating voltage VSYS can only pass through resistance R9 to resistance R11, and processor passes through at this time
GPIO_2 sends information to notify triode Q4 to be turned on and off, you can influences being turned on and off for metal-oxide-semiconductor Q1.
Fig. 5 is the circuit diagram of power supply module provided in an embodiment of the present invention；As shown in figure 5, the capacitor cell and
The power supply protection unit connection, the capacitance C6 of the specially described capacitor cell connect the power supply protection with one end of capacitance C8
The drain electrode of the metal-oxide-semiconductor Q1 of unit；
The base stage of the triode Q4 of the power supply protection unit passes through GPIO_2 line connection processing devices；
The second pin of the detection chip U1 of the detection unit passes through GPIO_1 line connection processing devices.
Fig. 6 is operating voltage schematic diagram provided in an embodiment of the present invention；As shown in fig. 6, the voltage that external power supply provides（It can
To be provided by power supply adaptor）Can be 12V, the voltage that the capacitor cell provides can be 5.3V to 4.5V, be less than
Cable modem can not work when 4.5V.Normal work stage can give capacitor charging simultaneously, but will not be to modulation /demodulation
Device generates any influence.
Fig. 7 is sequence diagram schematic diagram provided in an embodiment of the present invention；As shown in fig. 7, providing 12V in external power adapter
When voltage, capacitor cell charges, and voltage starts to increase；
Detection unit detects the power supply of 12V, and the voltage signal of 3.3V is exported to cable by power supply interface universal input port
The processor of modem, the processor receive signal, and identification, which need not discharge to capacitance, to be operated, so keeping
The voltage signal for exporting 0V gives power supply protection unit.
When the external power adapter power down, capacitor cell is directly powered by diode to modem, together
When detection unit detect its operating voltage and become 5.3V from 12V, send out 0V level to processor, after receiving the level
The voltage for sending 3.3V gives power supply protection unit, it is notified to turn on the switch direct power supply, rather than is powered by diode, this
Way can make the discharge time of capacitance more long.
Fig. 8 is the flow diagram of the method for supplying power to of modem provided in an embodiment of the present invention；As shown in figure 8, institute
Stating modem includes：Radio-frequency module, processor, the power supply interface for connecting external power supply, passes through the power supply interface at network interface
For the power supply module of modem power supply；The power supply module, including：Detection unit, capacitor cell；The method packet
It includes：
Step 801, the detection unit detect whether the power supply interface connects external power supply, generate first according to testing result
Signal, and first signal is sent to the processor；The first characterization testing result；
Step 802, the processor generate power supply instruction, and power supply instruction is sent to institute according to first signal
State power supply protection unit；
Step 803, the power supply protection unit respond the power supply instruction, connect the capacitor cell and the processor, make
It is that the modem is powered to obtain the capacitor cell.
Specifically, the detection unit detects whether the power supply interface connects external power supply, generates according to testing result
First signal, including：
The detection unit detects first voltage, judges whether the first voltage is less than preset voltage value, determines described first
Voltage is less than the preset voltage value, then low level is generated, as first signal.
Specifically, the power supply module further includes power supply protection unit；The power supply protection unit, including：Metal-oxide-semiconductor；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem, including：
The metal-oxide-semiconductor receives and responds the power supply instruction, connects the capacitor cell and processor so that the capacitor cell
It powers for the modem；
The power supply protection unit, further includes diode；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem, further includes：
The diode disconnects in the power supply interface and the external power supply, capacitor cell described in the metal-oxide-semiconductor access failure and
When processor, the capacitor cell and processor are connected so that the capacitor cell is powered for the modem.
Specifically, the power supply module further includes power supply protection unit；The power supply protection unit, including：Diode and
Metal-oxide-semiconductor；
The power supply protection unit connects the capacitor cell and the processor, including：
The diode connects the capacitor cell and processor so that the capacitor cell is powered for the modem；
The metal-oxide-semiconductor receives and responds the power supply instruction, connects the capacitor cell and processor so that the capacitor cell
It powers for the modem.
Specifically, the capacitor cell includes at least one capacitance；
The capacitor cell is powered by the power supply interface storing electrical energy, and for the modem, including：
At least one capacitance connects external power supply with storing electrical energy by the power supply interface, and is the modem
Power supply.
Here it is described further, modem is switched on after being powered and runs；The capacitance that capacitor cell includes starts to charge up；
Detection unit detects whether the power supply interface connects external power supply；It determines access failure external power supply, that is, detects modulation /demodulation
Device powers off, and capacitor cell enters discharge mode, and sends power cut-off information to server to notify to power off；Judge whether persistently to break
Electricity determines lasting power-off, then when capacitance electricity discharges completely, then modem is stopped；Determine that modem connects
Power supply, then capacitance stops electric discharge, and starts to charge up.
The foregoing is only a preferred embodiment of the present invention, is not intended to limit the scope of the present invention, it is all
All any modification, equivalent and improvement made by within the spirit and principles in the present invention etc. should be included in the protection of the present invention
Within the scope of.
Claims (10)
1. a kind of modem, the modem include：Radio-frequency module, network interface, which is characterized in that the modulation /demodulation
Device further includes processor, power supply interface, power supply module；Wherein,
The power supply interface, for connecting external power supply；
The power supply module, for being powered for the modem by the power supply interface；The power supply module, including：
Detection unit, capacitor cell, power supply protection unit；Wherein,
The detection unit generates the first letter according to testing result for detecting whether the power supply interface connects external power supply
Number, and first signal is sent to the processor；The first characterization testing result；
The processor, for according to first signal, generating power supply instruction, and power supply instruction is sent to the confession
Electric protection unit；
The power supply protection unit connects the capacitor cell and the processor so that institute for responding the power supply instruction
Capacitor cell is stated to power for the modem；
The capacitor cell for connecting external power supply by the power supply interface with storing electrical energy, and is the modulation /demodulation
Device is powered.
2. modem according to claim 1, which is characterized in that the detection unit, for detecting first voltage,
Judge whether the first voltage is less than preset voltage value, determines that the first voltage is less than the preset voltage value, then generate
Low level, as first signal.
3. modem according to claim 2, which is characterized in that the detection unit, including detection chip, it is described
Detection chip, including：Second pin, third pin and the first pin of ground connection；Wherein,
The detection chip, the voltage for detecting the third pin, as the first voltage；Judge the first voltage
Whether it is less than preset voltage value, determines that the first voltage is less than the preset voltage value, then generate low level, as described the
One signal；First signal is sent to processor by the second pin.
4. modem according to claim 1, which is characterized in that the power supply module further includes power supply protection list
Member；The power supply protection unit, including：Metal-oxide-semiconductor；
The metal-oxide-semiconductor connects the capacitor cell and processor so that the electricity for receiving and responding the power supply instruction
Hold unit to power for the modem；
The power supply protection unit, further includes diode；
The diode, for the capacitance list described in the power supply interface and external power supply disconnection, the metal-oxide-semiconductor access failure
When member and processor, the capacitor cell and processor are connected so that the capacitor cell is powered for the modem.
5. modem according to claim 1, which is characterized in that the capacitor cell includes at least one capacitance；
At least one capacitance for connecting external power supply by the power supply interface with storing electrical energy, and is the modulation
Demodulator is powered.
6. a kind of method of supplying power to of modem, which is characterized in that the modem includes：Radio-frequency module, network interface, place
It manages device, the power supply interface for connecting external power supply, be the power supply module that the modem is powered by the power supply interface；Institute
Power supply module is stated, including：Detection unit, capacitor cell, power supply protection unit；The method includes：
The detection unit detects whether the power supply interface connects external power supply, generates the first signal according to testing result, and
First signal is sent to the processor；The first characterization testing result；
The processor generates power supply instruction, and power supply instruction is sent to the power supply and is protected according to first signal
Protect unit；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem.
7. according to the method described in claim 6, it is characterized in that, the detection unit detects whether the power supply interface is connected
External power supply generates the first signal according to testing result, including：
The detection unit detects first voltage, judges whether the first voltage is less than preset voltage value, determines described first
Voltage is less than the preset voltage value, then low level is generated, as first signal.
8. the method according to the description of claim 7 is characterized in that the power supply protection unit, including：Metal-oxide-semiconductor；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem, including：
The metal-oxide-semiconductor receives and responds the power supply instruction, connects the capacitor cell and processor so that the capacitor cell
It powers for the modem；
The power supply protection unit, further includes diode；
The power supply protection unit responds the power supply instruction, connects the capacitor cell and the processor so that the electricity
Hold unit to power for the modem, further includes：
The diode disconnects in the power supply interface and the external power supply, capacitor cell described in the metal-oxide-semiconductor access failure and
When processor, the capacitor cell and processor are connected so that the capacitor cell is powered for the modem.
9. according to the method described in claim 6, it is characterized in that, the power supply module, further includes power supply protection unit；It is described
Power supply protection unit, including：Diode and metal-oxide-semiconductor；
The power supply protection unit connects the capacitor cell and the processor, including：
The diode connects the capacitor cell and processor so that the capacitor cell is powered for the modem；
The metal-oxide-semiconductor receives and responds the power supply instruction, connects the capacitor cell and processor so that the capacitor cell
It powers for the modem.
10. according to the method described in claim 6, it is characterized in that, the capacitor cell includes at least one capacitance；
The capacitor cell is powered by the power supply interface storing electrical energy, and for the modem, including：
At least one capacitance connects external power supply with storing electrical energy by the power supply interface, and is the modem
Power supply.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046173.5A CN108377303B (en) | 2018-01-17 | 2018-01-17 | Modem and power supply method of modem |
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|---|---|---|---|
| CN201810046173.5A CN108377303B (en) | 2018-01-17 | 2018-01-17 | Modem and power supply method of modem |
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| CN108377303B CN108377303B (en) | 2020-05-12 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050011A (en) * | 2018-10-11 | 2020-04-21 | 夏普株式会社 | Image forming apparatus, storage medium, and control method |
| CN111614850A (en) * | 2020-04-15 | 2020-09-01 | 北京瀚诺半导体科技有限公司 | Wall-in type coaxial cable modulation and demodulation device |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11892889B2 (en) * | 2021-05-07 | 2024-02-06 | Metropolitan Industries, Inc. | Network switch device with battery powered back-up modem and remote device power supply |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043605A (en) * | 2007-04-06 | 2007-09-26 | 吴壬华 | Power-off sequential protection circuit of flat-plate television power supply |
| CN201032739Y (en) * | 2007-04-06 | 2008-03-05 | 吴壬华 | Power-off sequential protection circuit of flat-plate television power supply |
| CN101741050A (en) * | 2009-12-25 | 2010-06-16 | 中国电信股份有限公司 | Device and method for alarming on interruption of power supply, xDSL outdoor chassis and xDSL system |
| CN101895341A (en) * | 2010-07-23 | 2010-11-24 | 中兴通讯股份有限公司 | Terminal equipment and power failure alarm reporting method thereof |
| CN102136717A (en) * | 2011-03-22 | 2011-07-27 | 惠州Tcl移动通信有限公司 | Charger and charging protection device |
| CN102262432A (en) * | 2011-08-04 | 2011-11-30 | 惠州Tcl移动通信有限公司 | System and method for automatic rebooting subsequent to crash of Modem of smart phone |
| CN102377708A (en) * | 2010-08-13 | 2012-03-14 | 国基电子（上海）有限公司 | Modem and power supply management method thereof |
| CN202889195U (en) * | 2012-09-29 | 2013-04-17 | 深圳市新国都技术股份有限公司 | Control circuit prolonging power fail protection time |
| CN103618843A (en) * | 2013-11-29 | 2014-03-05 | 华为技术有限公司 | Modem, communication method of modem and wireless charging method and device |
| CN203660533U (en) * | 2014-01-22 | 2014-06-18 | 科都电气有限公司 | Power-off protection circuit |
| CN204316497U (en) * | 2015-01-13 | 2015-05-06 | 周达左 | Based on the arrowband power line carrier, PLC module of PLC12010V1 |
| CN105515148A (en) * | 2015-12-03 | 2016-04-20 | 中国联合网络通信集团有限公司 | Radio remote unit, power-off alarm method and base station |
| CN205248775U (en) * | 2015-12-08 | 2016-05-18 | 广州金升阳科技有限公司 | Switching power supply's output short circuit protection circuit |
| CN106301332A (en) * | 2015-05-19 | 2017-01-04 | 中兴通讯股份有限公司 | Circuit for the electric discharge of delay startup current supply circuit |
| CN106292341A (en) * | 2015-05-14 | 2017-01-04 | 深圳市三诺数字科技有限公司 | A kind of power on/off system and method |
| CN106786353A (en) * | 2016-12-13 | 2017-05-31 | 京信通信技术(广州)有限公司 | A kind of overvoltage crowbar |
-
2018
- 2018-01-17 CN CN201810046173.5A patent/CN108377303B/en active Active
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101043605A (en) * | 2007-04-06 | 2007-09-26 | 吴壬华 | Power-off sequential protection circuit of flat-plate television power supply |
| CN201032739Y (en) * | 2007-04-06 | 2008-03-05 | 吴壬华 | Power-off sequential protection circuit of flat-plate television power supply |
| CN101741050A (en) * | 2009-12-25 | 2010-06-16 | 中国电信股份有限公司 | Device and method for alarming on interruption of power supply, xDSL outdoor chassis and xDSL system |
| CN101895341A (en) * | 2010-07-23 | 2010-11-24 | 中兴通讯股份有限公司 | Terminal equipment and power failure alarm reporting method thereof |
| CN102377708A (en) * | 2010-08-13 | 2012-03-14 | 国基电子（上海）有限公司 | Modem and power supply management method thereof |
| CN102136717A (en) * | 2011-03-22 | 2011-07-27 | 惠州Tcl移动通信有限公司 | Charger and charging protection device |
| CN102262432A (en) * | 2011-08-04 | 2011-11-30 | 惠州Tcl移动通信有限公司 | System and method for automatic rebooting subsequent to crash of Modem of smart phone |
| CN202889195U (en) * | 2012-09-29 | 2013-04-17 | 深圳市新国都技术股份有限公司 | Control circuit prolonging power fail protection time |
| CN103618843A (en) * | 2013-11-29 | 2014-03-05 | 华为技术有限公司 | Modem, communication method of modem and wireless charging method and device |
| CN203660533U (en) * | 2014-01-22 | 2014-06-18 | 科都电气有限公司 | Power-off protection circuit |
| CN204316497U (en) * | 2015-01-13 | 2015-05-06 | 周达左 | Based on the arrowband power line carrier, PLC module of PLC12010V1 |
| CN106292341A (en) * | 2015-05-14 | 2017-01-04 | 深圳市三诺数字科技有限公司 | A kind of power on/off system and method |
| CN106301332A (en) * | 2015-05-19 | 2017-01-04 | 中兴通讯股份有限公司 | Circuit for the electric discharge of delay startup current supply circuit |
| CN105515148A (en) * | 2015-12-03 | 2016-04-20 | 中国联合网络通信集团有限公司 | Radio remote unit, power-off alarm method and base station |
| CN205248775U (en) * | 2015-12-08 | 2016-05-18 | 广州金升阳科技有限公司 | Switching power supply's output short circuit protection circuit |
| CN106786353A (en) * | 2016-12-13 | 2017-05-31 | 京信通信技术(广州)有限公司 | A kind of overvoltage crowbar |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111050011A (en) * | 2018-10-11 | 2020-04-21 | 夏普株式会社 | Image forming apparatus, storage medium, and control method |
| CN111050011B (en) * | 2018-10-11 | 2021-10-12 | 夏普株式会社 | Image forming apparatus, storage medium, and control method |
| CN111614850A (en) * | 2020-04-15 | 2020-09-01 | 北京瀚诺半导体科技有限公司 | Wall-in type coaxial cable modulation and demodulation device |
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|---|---|
| CN108377303B (en) | 2020-05-12 |
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