CN114765332B - Intelligent socket and use method - Google Patents
Intelligent socket and use method Download PDFInfo
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- CN114765332B CN114765332B CN202110053297.8A CN202110053297A CN114765332B CN 114765332 B CN114765332 B CN 114765332B CN 202110053297 A CN202110053297 A CN 202110053297A CN 114765332 B CN114765332 B CN 114765332B
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6666—Structural association with built-in electrical component with built-in electronic circuit with built-in overvoltage protection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6675—Structural association with built-in electrical component with built-in electronic circuit with built-in power supply
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6683—Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
- H01R13/66—Structural association with built-in electrical component
- H01R13/665—Structural association with built-in electrical component with built-in electronic circuit
- H01R13/6691—Structural association with built-in electrical component with built-in electronic circuit with built-in signalling means
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The invention provides an intelligent socket and a use method thereof, wherein the intelligent socket comprises the following steps: the intelligent state detection module is configured to detect the charging state of the charging object to form real-time charging current; the intelligent state detection module is further configured to provide the real-time charging current to the intelligent state processing module; the intelligent state processing module is configured to compare the real-time charging current with a charging current fitting curve to obtain a current control instruction; and the intelligent state control module is configured to adjust the charging current of the charging object according to the current control instruction.
Description
Technical Field
The invention relates to the technical field of consumer household appliances, in particular to an intelligent socket and a use method thereof.
Background
The socket is used as the most common equipment in industrial production and civil consumption, and the most serious trouble exists when a user uses the socket is that the user cannot obtain correct power supply when charging a charging object with a battery, so that the service life of the charging object battery is reduced, the charging object battery is damaged, and even the user catches fire to cause property loss and environmental pollution and resource waste.
The conventional intelligent socket only opens the relay when detecting the load, and has no real intelligent detection function and only performs passive execution; in the prior art, after a charging object is powered on, the charging object is generally charged by a constant current, and in fact, the current demand of the charging object is always changed, especially when the charging object is a battery, the battery is extremely liable to bulge, burst and catch fire, and the safety and reliability are poor. The existing intelligent socket can only achieve the effect of intelligent on-off, cannot understand the current demand of a charging object, can only achieve on-off, and only achieve the effect of energy conservation; in fact, from a large number of failure data analysis, it is found that the service life of a charging object with a battery, such as a household mobile phone, a tablet and the like, is reduced by nearly 30% compared with the ideal service life; wherein the damage is 5%, which is sufficient to indicate that the level of intellectualization of the socket is to be promoted as old-!
In summary, the existing smart socket does not solve the intelligent detection and control of the current of the charging object, and only opens the gate to enable the charging object to acquire by itself; therefore, the problem of intelligent control is not solved, and the battery is overcharged and even damaged; although the above risks are avoided to some extent with the upgrading of battery technology and the popularization of corresponding protection circuits, the process should be performed on the source for a long time.
Disclosure of Invention
The invention aims to provide an intelligent socket and a use method thereof, which are used for solving the problem that the current of a charging object is not intelligently detected and controlled by the existing intelligent socket.
In order to solve the above technical problems, the present invention provides an intelligent socket, including:
the intelligent state detection module is configured to detect the charging state of the charging object to form real-time charging current;
the intelligent state detection module is further configured to provide the real-time charging current to the intelligent state processing module;
the intelligent state processing module is configured to compare the real-time charging current with a charging current fitting curve to obtain a current control instruction;
and the intelligent state control module is configured to adjust the charging current of the charging object according to the current control instruction.
Optionally, in the smart jack, further includes:
the preset state module is configured to store the charging current fitting curve and the temperature rise threshold value and provide the charging current fitting curve and the temperature rise threshold value for the intelligent state processing module;
the preset state module is further configured to receive and store a new charging current fitting curve;
the preset state module provides a charging current fitting curve corresponding to the current control instruction for the intelligent state control module, so that the intelligent state control module adjusts the charging current of the charging object according to the charging current fitting curve.
Optionally, in the smart jack, the smart state processing module compares the real-time charging current with a charging current fitting curve, and the obtaining the current control instruction includes:
the preset state module provides a plurality of charging current fitting curves for the intelligent state control module;
the intelligent state processing module compares each node current of each charging current fitting curve with real-time charging current respectively, if the charging current fitting curve currently used by the intelligent state control module coincides with the real-time charging current, the current control instruction is a state maintenance charging instruction, and if the real-time charging current coincides with one other charging current fitting curve, the current control instruction is a state conversion charging instruction;
if all the charging current fitting curves are not coincident with the real-time charging current, the current control instruction is a state updating charging instruction.
Optionally, in the smart jack, further includes:
the intelligent state processing module compares the temperature rise threshold with the real-time temperature of the charging object, and if the real-time temperature of the charging object is higher than the temperature rise threshold, the current control instruction is a state transition charging instruction or a state dangerous charging instruction.
Optionally, in the smart jack,
when the current control instruction is a state maintenance charging instruction, the intelligent state control module adjusts the charging current of the charging object according to the current of each node of the current charging current fitting curve;
when the current control instruction is a state transition charging instruction, the intelligent state processing module adjusts the charging current of the charging object according to each node current of a charging current fitting curve corresponding to the state transition charging instruction;
when the current control instruction is a state updating charging instruction, the intelligent state control module forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve for a preset state module to store;
and when the current control instruction is a state dangerous charging instruction, an alarm signal is sent out.
Optionally, in the smart jack, the smart state detection module includes a sampling sensor circuit and an analog-to-digital conversion circuit, wherein:
the sampling sensor circuit comprises a current sensor, a temperature sensor and a conditioning circuit;
the conditioning circuit converts signals detected by the current sensor and the temperature sensor into a detection range of the analog-to-digital conversion circuit;
the analog-to-digital conversion circuit is connected between the sampling sensor circuit and the intelligent state processing module.
Optionally, in the smart socket, the smart state control module includes a digital-to-analog conversion circuit, a current driver, and a voltage-to-current conversion circuit, where the digital-to-analog conversion circuit converts a digital signal output by the smart state processing module into a voltage-to-analog signal, and sends the voltage-to-analog signal to the current driver, the current driver amplifies the voltage-to-analog signal to a control range of the voltage-to-current conversion circuit, and the voltage-to-current conversion circuit converts the voltage-to-analog signal into a current-to-analog signal.
Optionally, in the smart jack, the voltage-current conversion circuit includes a first operational amplifier, a second operational amplifier, a triode, and a darlington tube, wherein:
the first operational amplifier negative input end is grounded through a first resistor, is connected with the first operational amplifier output end through a second capacitor, and is connected with the second operational amplifier positive input end through a third resistor, a fourth resistor, a sixth resistor, a ninth resistor and an eighth resistor which are sequentially connected, wherein the first capacitor is connected with the third resistor and the fourth resistor in parallel;
the first operational amplifier positive input end is connected with a voltage analog signal through a second resistor and is connected with the second operational amplifier output end through a fifth resistor;
the first operational amplifier output end is connected with the triode base electrode through a seventh resistor;
the second operational amplifier negative input end is connected with the second operational amplifier output end;
the positive input end of the second operational amplifier is connected with a current analog signal;
the triode base is connected with the triode emitter and the Darlington base through a tenth resistor;
the triode collector is connected with a power supply and the Darlington tube collector;
the darlington tube emitter is connected to the current analog signal through a ninth resistor and an eighth resistor.
The invention also provides a use method of the intelligent socket, which comprises the following steps:
the intelligent state control module acquires a preset charging current fitting curve, and adjusts the charging current of the charging object according to the charging current fitting curve;
the intelligent state detection module detects the charging state of the charging object to form a real-time charging current, and the real-time charging current is provided to the intelligent state processing module;
the intelligent state processing module compares the current of each node of the charging current fitting curve with the real-time charging current to obtain a current control instruction;
and the intelligent state control module adjusts the charging current of the charging object according to the current control instruction.
Optionally, in the method for using an intelligent socket, the intelligent state processing module compares each node current of the charging current fitting curve with a real-time charging current, and the obtaining the current control instruction includes:
the preset state module provides a plurality of charging current fitting curves for the intelligent state control module;
the intelligent state processing module compares each node current of each charging current fitting curve with real-time charging current respectively, if the charging current fitting curve currently used by the intelligent state control module coincides with the real-time charging current, the current control instruction is a state maintenance charging instruction, and if the real-time charging current coincides with one other charging current fitting curve, the current control instruction is a state conversion charging instruction;
if all the charging current fitting curves are not coincident with the real-time charging current, the current control instruction is a state updating charging instruction.
Optionally, in the method for using the smart jack,
when the current control instruction is a state maintenance charging instruction, the intelligent state control module adjusts the charging current of the charging object according to the current of each node of the current charging current fitting curve;
when the current control instruction is a state transition charging instruction, the intelligent state processing module adjusts the charging current of the charging object according to each node current of a charging current fitting curve corresponding to the state transition charging instruction;
when the current control instruction is a state updating charging instruction, the intelligent state control module forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve for the preset state module for storage.
According to the intelligent socket and the use method, the intelligent state control module is used for acquiring the preset charging current fitting curve, the charging current of the charging object is adjusted through the charging current fitting curve, the intelligent state detection module is used for detecting the charging state of the charging object to form the real-time charging current, the intelligent state processing module is used for comparing each node current of the charging current fitting curve with the real-time charging current to obtain the current control instruction, the intelligent state control module is used for adjusting the charging current of the charging object according to the current control instruction, an automatic control closed loop is realized, whether the charging current fitting curve is matched with the real-time charging current or not is judged, whether the current charging state is reasonable or not is monitored in real time, and the intelligent degree of the whole process is high.
The novel intelligent household socket provided by the invention is different from the traditional socket, can intelligently control the charging current of a charging object, and is more energy-saving and high in safety and reliability.
Drawings
FIG. 1 is a schematic diagram of a smart jack according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method for using an intelligent socket according to an embodiment of the invention;
FIG. 3 is a flowchart of a method for using an intelligent socket according to an embodiment of the present invention;
FIG. 4 is a schematic circuit diagram of a smart status detection module in a smart jack according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a voltage regulation circuit in a smart jack according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a current regulation circuit in a smart jack according to an embodiment of the present invention.
Detailed Description
The smart jack and the use method provided by the invention are further described in detail below with reference to the accompanying drawings and specific embodiments. Advantages and features of the invention will become more apparent from the following description and from the claims. It should be noted that the drawings are in a very simplified form and are all to a non-precise scale, merely for convenience and clarity in aiding in the description of embodiments of the invention.
In addition, features of different embodiments of the invention may be combined with each other, unless otherwise specified. For example, a feature of the second embodiment may be substituted for a corresponding feature of the first embodiment, or may have the same or similar function, and the resulting embodiment would fall within the disclosure or scope of the disclosure.
The invention provides an intelligent socket and a use method thereof, which aim to solve the problem that the existing intelligent socket does not solve the intelligent detection and control of the current of a charging object.
In order to achieve the above-mentioned idea, the present invention provides an intelligent socket and a use method thereof, including: the intelligent state control module acquires a preset charging current fitting curve, and adjusts the charging current of the charging object according to the charging current fitting curve; the intelligent state detection module detects the charging state of the charging object to form a real-time charging current, and the real-time charging current is provided to the intelligent state processing module; the intelligent state processing module compares the current of each node of the charging current fitting curve with the real-time charging current to obtain a current control instruction; and the intelligent state control module adjusts the charging current of the charging object according to the current control instruction.
The present embodiment provides an intelligent socket, as shown in fig. 1, including: the intelligent state control module 30 acquires a preset charging current fitting curve, and the intelligent state control module 30 adjusts the charging current of the charging object according to the charging current fitting curve; the intelligent state detection module 10 detects the charging state of the charging object to form a real-time charging current, and provides the real-time charging current to the intelligent state processing module 20; the intelligent state processing module 20 compares the node currents of the charging current fitting curve with the real-time charging current to obtain a current control instruction; the intelligent state control module 30 adjusts the charging current of the charging object according to the current control instruction.
Specifically, in the smart jack, the real-time charging current may be replaced by parameters such as a real-time charging voltage and/or a real-time temperature of the charging object.
In one embodiment of the present invention, the smart jack further includes a preset state module 40 configured to store the charging current fitting curve and the temperature rise threshold, and provide the charging current fitting curve and the temperature rise threshold to the smart state processing module 20; the preset state module 40 is further configured to receive and store a new charging current fitting curve; the preset state module 40 provides the intelligent state control module 30 with a charging current fitting curve corresponding to the current control command, so that the intelligent state control module 30 adjusts the charging current of the charging object according to the charging current fitting curve.
In one embodiment of the present invention, the intelligent state processing module 20 compares the real-time charging current with a charging current fitting curve, and the deriving the current control command includes: the preset state module 40 provides a plurality of charging current fitting curves to the intelligent state control module 30; the intelligent state processing module 20 compares each node current of each charging current fitting curve with a real-time charging current, if the charging current fitting curve currently being used by the intelligent state control module 30 coincides with the real-time charging current, the current control instruction is a state maintenance charging instruction, and if the real-time charging current coincides with one of the other charging current fitting curves, the current control instruction is a state conversion charging instruction; if all the charging current fitting curves are not coincident with the real-time charging current, the current control instruction is a state updating charging instruction. In one embodiment of the present invention, the intelligent state processing module 20 compares the temperature rise threshold with the real-time temperature of the charging object, and if the real-time temperature of the charging object is higher than the temperature rise threshold, the current control command is a state transition charging command or a state danger charging command.
In one embodiment of the present invention, when the current control command is a state maintenance charging command, the intelligent state control module 30 adjusts the charging current of the charging object with each node current of the present charging current fitting curve; when the current control instruction is a state transition charging instruction, the intelligent state processing module 20 adjusts the charging current of the charging object according to each node current of the charging current fitting curve corresponding to the state transition charging instruction; when the current control command is a state update charging command, the intelligent state control module 30 forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve to the preset state module 40 for storage; and when the current control instruction is a state dangerous charging instruction, an alarm signal is sent out.
In one embodiment of the invention, once the real-time temperature of the charging object is monitored to be higher than the temperature rise threshold, other charging current fitting curves with smaller average current values are immediately called as the basis for adjusting the charging current of the charging object, and the charging current fitting curves are sequentially called from large to small according to the amplitude of the average current value until the real-time temperature of the charging object is no longer higher than the temperature rise threshold, and at the moment, the current control instruction is converted into a state transition charging instruction; if all the charging current fitting curves can not enable the real-time temperature of the charging object to be lower than the temperature rise threshold value, the current control instruction is converted into a state dangerous charging instruction, and an alarm signal is sent.
In one embodiment of the invention, the intelligent state detection module 10 includes a sampling sensor circuit 11 and an analog to digital conversion circuit 12, wherein: the sampling sensor circuit 11 comprises a current sensor, a temperature sensor and a conditioning circuit; the conditioning circuit converts signals detected by the current sensor and the temperature sensor into the detection range of the analog-to-digital conversion circuit 12; the analog-to-digital conversion circuit 12 is connected between the sampling sensor circuit 11 and the intelligent state processing module 20.
In one embodiment of the present invention, the intelligent status control module 30 includes a digital-to-analog conversion circuit 31, a current driver 32 and a voltage-to-current conversion circuit 33, wherein the digital-to-analog conversion circuit 31 converts the digital signal output by the intelligent status processing module 20 into a voltage analog signal and sends the voltage analog signal to the current driver 32, the current driver 32 amplifies the voltage analog signal to a control range of the voltage-to-current conversion circuit 33, and the voltage-to-current conversion circuit 33 converts the voltage analog signal into a current analog signal.
In one embodiment of the present invention, the voltage-to-current conversion circuit 33 includes a first operational amplifier, a second operational amplifier, a triode, and a darlington tube, wherein: the first operational amplifier negative input end is grounded through a first resistor, is connected with the first operational amplifier output end through a second capacitor, and is connected with the second operational amplifier positive input end through a third resistor, a fourth resistor, a sixth resistor, a ninth resistor and an eighth resistor which are sequentially connected, wherein the first capacitor is connected with the third resistor and the fourth resistor in parallel; the first operational amplifier positive input end is connected with a voltage analog signal through a second resistor and is connected with the second operational amplifier output end through a fifth resistor; the first operational amplifier output end is connected with the triode base electrode through a seventh resistor; the second operational amplifier negative input end is connected with the second operational amplifier output end; the positive input end of the second operational amplifier is connected with a current analog signal; the triode base is connected with the triode emitter and the Darlington base through a tenth resistor; the triode collector is connected with a power supply and the Darlington tube collector; the darlington tube emitter is connected to the current analog signal through a ninth resistor and an eighth resistor.
The embodiment also provides a use method of the smart socket, as shown in fig. 2, including: the intelligent state control module 30 acquires a preset charging current fitting curve, and the intelligent state control module 30 adjusts the charging current of the charging object according to the charging current fitting curve; the intelligent state detection module 10 detects the charging state of the charging object to form a real-time charging current, and provides the real-time charging current to the intelligent state processing module 20; the intelligent state processing module 20 compares the node currents of the charging current fitting curve with the real-time charging current to obtain a current control instruction; the intelligent state control module 30 adjusts the charging current of the charging object according to the current control instruction.
In one embodiment of the present invention, the intelligent state processing module 20 compares each node current of the charging current fitting curve with the real-time charging current, and the obtaining the current control command includes: the preset state module 40 provides a plurality of charging current fitting curves to the intelligent state control module 30; the intelligent state processing module 20 compares each node current of each charging current fitting curve with a real-time charging current, if the charging current fitting curve currently being used by the intelligent state control module 30 coincides with the real-time charging current, the current control instruction is a state maintenance charging instruction, and if the real-time charging current coincides with one of the other charging current fitting curves, the current control instruction is a state conversion charging instruction; if all the charging current fitting curves are not coincident with the real-time charging current, the current control instruction is a state updating charging instruction.
In one embodiment of the present invention, when the current control command is a state maintenance charging command, the intelligent state control module 30 adjusts the charging current of the charging object with each node current of the present charging current fitting curve; when the current control instruction is a state transition charging instruction, the intelligent state processing module 20 adjusts the charging current of the charging object according to each node current of the charging current fitting curve corresponding to the state transition charging instruction; when the current control command is a state update charging command, the intelligent state control module 30 forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve to the preset state module 40 for storage.
In one embodiment of the present invention, as shown in fig. 3, includes: the first step, the preset state module 40 provides a certain charging current fitting curve to the intelligent state control module 30;
the second step, the intelligent state processing module 20 compares each node current of the charging current fitting curve with the real-time charging current, if the node currents are coincident, the third step is implemented, otherwise, the fourth step is implemented;
third, the current control command is a state maintenance charging command (the charging current fitting curve is just the basis of the current adjustment charging current) or a state transition charging command (the charging current fitting curve is not the basis of the current adjustment charging current);
if the current control command is a state maintenance charging command, the intelligent state control module 30 also charges with each node current of the current charging current fitting curve;
if the current control instruction is a state transition charging instruction, converting the current charging current fitting curve into the charging current fitting curve as a new basis for adjusting the charging current;
fourth, judging whether all the charging current fitting curves have been implemented in the second step, if yes, implementing the fifth step, otherwise, returning to the first step again;
fifth, the current control command is a state update charging command, and the intelligent state control module 30 forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve to the preset state module 40.
In one embodiment of the present invention, the charging current is used as a judgment parameter, and may be replaced by a charging voltage; further, as shown in fig. 4, the sampling sensor circuit 11 further includes a voltage sensor; the conditioning circuit converts the signal detected by the voltage sensor into the detection range of the analog-to-digital conversion circuit 12.
In one embodiment of the invention, the adjusted charging current may be replaced with an adjusted charging voltage; as shown in fig. 5, in the smart jack, the smart status control module 30 includes a voltage adjusting circuit, wherein: the voltage regulating circuit comprises a photoelectric converter and a buck conversion circuit, and the digital potentiometer on the buck conversion circuit is regulated by the isolated photoelectric converter so as to regulate the charging voltage of the charging object.
The invention relates to the field of consumer household appliances. More specifically, the invention provides a novel intelligent socket capable of intelligently identifying a load of a plug-in charging object and performing corresponding intelligent control on a charging current fitting curve of the load. The invention is applied to consumer home smart sockets by way of example only, but it is clearly recognized that the invention has a wider range of applications in other power supply fields (e.g. commercial sockets, automotive smart piles). The key point of the invention is how to reasonably process the 'demand' of the charging object. The hardware of the invention is provided with an intelligent current detection circuit and an intelligent current control circuit; the current control and detection coordination linkage can be realized on the software, and the special power supply curve of the charging object can be intelligently learned; and the functions of intelligent upgrading and the like can be realized.
Intelligent detection is a complex process, and needs to monitor the current demand of a load in real time and adjust the current open gear in real time; and real-time state adjustment is performed under the condition of meeting reasonable temperature rise so as to ensure an excellent charging process; communication, namely, adjusting the gear in real time for adapting to the intelligent charging temperature rise of different charging objects so as to ensure the health and the service life of the charging objects; pre-judging, namely simply evaluating the current demand of the charging object, and considering the temperature rise state under the preset gear if the temperature rise state meets the index, wherein the temperature rise state meets the preset; the curve, i.e. the blocking point of the open current when the temperature rises reasonably under the current demand, needs to be stored in the form of a table.
The load demand of the charging object, the current voltage and current signals of the charging object are converted into the range which is convenient for the processor to recognize by the sampling sensor, and fig. 4 is a conditioning circuit combined by operational amplifiers, namely the sampling sensor; as shown in fig. 4, the sampling sensor converts signals of each link well to an analog-to-digital conversion processor; as shown in fig. 4, the analog-to-digital conversion processor converts the signals of each node into digital signals which can be identified by the central processor, the central processor compares the digital signals with preset signals to ensure the accuracy of closed-loop adjustment, specifically, v+r1 to v+r4 are respectively connected with two ends of a sampling resistor to extract sampling voltages, one of the voltages is input to the positive input end of the OPA, the other is grounded, and the output end of the OPA is connected with negative input so that the OPA plays the role of a voltage follower (impedance conversion circuit), the signal driving capability of the sampling voltages is further enhanced, or the current signals are converted into voltage signals, and the positive input end of the voltage stabilizing diode is also connected to prevent the damage of devices caused by overvoltage; the output end of the amplifying circuit is connected to an amplifying circuit and further carries out capacitance filtering, the amplifying circuit is also composed of an OPA, the positive input end of the amplifying circuit is connected to a signal end to be amplified, two proportional resistors are connected between the output end and the ground, the connection point of the two resistors is connected to the negative input end, and then the amplified signal is provided to the ADC.
If the comparison of the preset signals by the central processing unit is inaccurate, as shown in fig. 5, the digital potentiometer RW on the BUCK is adjusted by the isolated photoelectric converter OCEP; the central processing unit provides the control voltage V-Ctrl, and the signal is easy to interfere with the digital potentiometer RW, so that the optical signal is decoded and converted into a Ctrl-RW signal through the photoelectric converter, the Ctrl-RW signal is provided for RW, and the RW further adjusts the resistance value according to the Ctrl-RW signal, so that the voltage output by the BUCK is adjusted to the correct voltage value. The input end of RW is connected with a plurality of filter capacitors, the output end FB of RW is connected with the connection point of two resistors (one is a digital potentiometer and the other is a sampling resistor with fixed resistance value), and the two resistors are connected between a power supply and the ground.
As shown in fig. 6, the DAC is controlled simultaneously to adjust the current Driver 32I-Driver to adjust the voltage-current converting circuit 33V-I; the double pipes are arranged at the same time, so that the accuracy of providing energy to the outside is ensured. The digital signal output by the central processing unit is converted into an analog signal dac_aq0 through the DAC, and then is passed through an amplifying circuit formed by OPA, the principle of the amplifying circuit is the same as that described above, and then is input to a voltage follower, the principle of the voltage follower is the same as that described above, so as to obtain dac_aq0_ctrl, and the signal is input to the voltage-current converting circuit 33, so as to obtain a current signal aq0_out. The voltage-current conversion circuit 33 includes a first operational amplifier U1, a second operational amplifier U2, a triode M1, and a darlington tube M2, wherein: the negative input end of U1 is grounded through a first resistor R1, the output end of U1 is connected through a second capacitor C2, the positive input end of U2 is connected through a third resistor R3, a fourth resistor R4, a sixth resistor R6, a ninth resistor R9 and an eighth resistor R8 which are sequentially connected, the first capacitor C1 is connected with the third resistor R3 and the fourth resistor R4 in parallel, the positive input end of U1 is connected with a voltage analog signal DAC_AQ0_Ctrl through the second resistor R2, the output end of U2 is connected through a fifth resistor R5, the output end of U1 is connected with the base of M1 through a seventh resistor R7, the negative input end of U2 is connected with the output end of U2, the positive input end of U2 is connected with a current analog signal AQ0_out, the base of M1 is connected with the emitter of M1 and the base of M2 through a tenth resistor R10, the collector of M1 is connected with the power supply and the collector of M2, and the emitter of M2 is connected with the current analog signal AQ0_out through R9 and R8.
In order to further improve the accuracy of charging and the charging precision, the invention can adjust the voltage and the current at the same time: the analog-to-digital conversion processor collects state data (current, voltage and temperature) of each node of the load; the central processing unit requests the analog-digital conversion processor for loading the state data of each node; the central processing unit compares the preset or learned data and judges whether the load state is reasonable or not; on the one hand, if not, the voltage is regulated through the photoelectric converter and the BUCK; on the other hand, the digital-to-analog conversion processor issues the rectifying and modifying instruction at the same time; the digital-to-analog conversion processor delivers the instruction to the I-Driver and then converts the instruction into a proper level; I-Driver directly adjusts the voltage-current conversion circuit V-I and adjusts the current; simultaneously adjusting the voltage and the current and repeating the flow; judging that the states of the nodes are reasonable; and if so, opening the charging service.
Compared with the traditional intelligent socket, the intelligent socket overcomes the defects of the common intelligent socket in a targeted manner, and the pain points of users are solved in a targeted and effective manner through intelligent charging object current control and intelligent charging object curve learning; the invention has the advantages of pre-judging the charging object current, buffering and holding the current, detecting the charging object current, orderly and closed-loop control; by means of the strong combination, the current stability, smoothness and variability of charging of the charging object are guaranteed, and the charging device is superior to a traditional intelligent socket.
In summary, the foregoing embodiments describe different configurations of the smart jack in detail, and of course, the present invention includes but is not limited to the configurations listed in the foregoing embodiments, and any configuration that is changed based on the configuration provided in the foregoing embodiments falls within the scope of protection of the present invention. One skilled in the art can recognize that the above embodiments are illustrative.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the system disclosed in the embodiment, the description is relatively simple because of corresponding to the method disclosed in the embodiment, and the relevant points refer to the description of the method section.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to limit the scope of the present invention, and any alterations and modifications made by those skilled in the art based on the above disclosure shall fall within the scope of the appended claims.
Claims (7)
1. An intelligent socket, characterized by comprising:
the intelligent state detection module is configured to detect the charging state of the charging object to form real-time charging current;
the intelligent state detection module is further configured to provide the real-time charging current to the intelligent state processing module;
the intelligent state processing module is configured to compare the real-time charging current with a charging current fitting curve to obtain a current control instruction;
the intelligent state control module is configured to adjust the charging current of the charging object according to the current control instruction;
the preset state module is configured to store the charging current fitting curve and the temperature rise threshold value and provide the charging current fitting curve and the temperature rise threshold value for the intelligent state processing module;
the preset state module is further configured to receive and store a new charging current fitting curve;
the preset state module provides a charging current fitting curve corresponding to the current control instruction for the intelligent state control module so that the intelligent state control module adjusts the charging current of the charging object according to the charging current fitting curve,
the intelligent state processing module compares the real-time charging current with a charging current fitting curve, and the obtaining of the current control instruction comprises the following steps:
the preset state module provides a plurality of charging current fitting curves for the intelligent state control module;
the intelligent state processing module compares each node current of each charging current fitting curve with real-time charging current respectively, if the charging current fitting curve currently used by the intelligent state control module coincides with the real-time charging current, the current control instruction is a state maintenance charging instruction, and if the real-time charging current coincides with one other charging current fitting curve, the current control instruction is a state conversion charging instruction;
if all the charging current fitting curves are not coincident with the real-time charging current, the current control instruction is a state updating charging instruction,
wherein the intelligent state processing module compares the temperature rise threshold with the real-time temperature of the charging object, if the real-time temperature of the charging object is higher than the temperature rise threshold, the current control instruction is a state transition charging instruction or a state dangerous charging instruction,
when the current control instruction is a state maintenance charging instruction, the intelligent state control module adjusts the charging current of the charging object according to the current of each node of the current charging current fitting curve;
when the current control instruction is a state transition charging instruction, the intelligent state processing module adjusts the charging current of the charging object according to each node current of a charging current fitting curve corresponding to the state transition charging instruction;
when the current control instruction is a state updating charging instruction, the intelligent state control module forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve for a preset state module to store;
and when the current control instruction is a state dangerous charging instruction, an alarm signal is sent out.
2. The smart jack of claim 1, wherein the smart status detection module includes a sampling sensor circuit and an analog-to-digital conversion circuit, wherein:
the sampling sensor circuit comprises a current sensor, a temperature sensor and a conditioning circuit;
the conditioning circuit converts signals detected by the current sensor and the temperature sensor into a detection range of the analog-to-digital conversion circuit;
the analog-to-digital conversion circuit is connected between the sampling sensor circuit and the intelligent state processing module.
3. The smart jack of claim 1, wherein the smart status control module includes a digital-to-analog conversion circuit, a current driver, and a voltage-to-current conversion circuit, the digital-to-analog conversion circuit converting a digital signal output from the smart status processing module into a voltage-to-analog signal, the voltage-to-analog signal being sent to the current driver, the current driver amplifying the voltage-to-analog signal to within a control range of the voltage-to-current conversion circuit, the voltage-to-current conversion circuit converting the voltage-to-analog signal into a current-to-analog signal.
4. The smart jack of claim 3, wherein the voltage to current conversion circuit comprises a first op-amp, a second op-amp, a triode, and a darlington tube, wherein:
the first operational amplifier negative input end is grounded through a first resistor, is connected with the first operational amplifier output end through a second capacitor, and is connected with the second operational amplifier positive input end through a third resistor, a fourth resistor, a sixth resistor, a ninth resistor and an eighth resistor which are sequentially connected, wherein the first capacitor is connected with the third resistor and the fourth resistor in parallel;
the first operational amplifier positive input end is connected with a voltage analog signal through a second resistor and is connected with the second operational amplifier output end through a fifth resistor;
the first operational amplifier output end is connected with the triode base electrode through a seventh resistor;
the second operational amplifier negative input end is connected with the second operational amplifier output end;
the positive input end of the second operational amplifier is connected with a current analog signal;
the triode base is connected with the triode emitter and the Darlington base through a tenth resistor;
the triode collector is connected with a power supply and the Darlington tube collector;
the darlington tube emitter is connected to the current analog signal through a ninth resistor and an eighth resistor.
5. A method of using the smart jack of claim 1, comprising:
the intelligent state control module acquires a preset charging current fitting curve, and adjusts the charging current of the charging object according to the charging current fitting curve;
the intelligent state detection module detects the charging state of the charging object to form a real-time charging current, and the real-time charging current is provided to the intelligent state processing module;
the intelligent state processing module compares the current of each node of the charging current fitting curve with the real-time charging current to obtain a current control instruction;
and the intelligent state control module adjusts the charging current of the charging object according to the current control instruction.
6. The method of claim 5, wherein the intelligent state processing module compares each node current of the charging current fitting curve with the real-time charging current, and obtaining the current control command comprises:
the preset state module provides a plurality of charging current fitting curves for the intelligent state control module;
the intelligent state processing module compares each node current of each charging current fitting curve with real-time charging current respectively, if the charging current fitting curve currently used by the intelligent state control module coincides with the real-time charging current, the current control instruction is a state maintenance charging instruction, and if the real-time charging current coincides with one other charging current fitting curve, the current control instruction is a state conversion charging instruction;
if all the charging current fitting curves are not coincident with the real-time charging current, the current control instruction is a state updating charging instruction.
7. The method of claim 5, wherein,
when the current control instruction is a state maintenance charging instruction, the intelligent state control module adjusts the charging current of the charging object according to the current of each node of the current charging current fitting curve;
when the current control instruction is a state transition charging instruction, the intelligent state processing module adjusts the charging current of the charging object according to each node current of a charging current fitting curve corresponding to the state transition charging instruction;
when the current control instruction is a state updating charging instruction, the intelligent state control module forms a new charging current fitting curve with the real-time charging current and provides the new charging current fitting curve for the preset state module for storage.
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| CN202110053297.8A CN114765332B (en) | 2021-01-15 | 2021-01-15 | Intelligent socket and use method |
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| CN202110053297.8A CN114765332B (en) | 2021-01-15 | 2021-01-15 | Intelligent socket and use method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202058993U (en) * | 2011-05-23 | 2011-11-30 | 宁波来和圣诞礼品有限公司 | An intelligent socket |
| CN104269697A (en) * | 2014-09-28 | 2015-01-07 | 无锡昊瑜节能环保设备有限公司 | Energy-saving power socket control system |
| CN105529764A (en) * | 2014-10-21 | 2016-04-27 | 通用汽车环球科技运作有限责任公司 | Apparatus and method for controlling a charge current |
| CN109843636A (en) * | 2016-10-14 | 2019-06-04 | 菲尼克斯电动交通有限公司 | It is used for transmission the temperature monitoring charging system of charging current |
| CN211150996U (en) * | 2019-11-26 | 2020-07-31 | 宜春学院 | Automatic control socket |
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2021
- 2021-01-15 CN CN202110053297.8A patent/CN114765332B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202058993U (en) * | 2011-05-23 | 2011-11-30 | 宁波来和圣诞礼品有限公司 | An intelligent socket |
| CN104269697A (en) * | 2014-09-28 | 2015-01-07 | 无锡昊瑜节能环保设备有限公司 | Energy-saving power socket control system |
| CN105529764A (en) * | 2014-10-21 | 2016-04-27 | 通用汽车环球科技运作有限责任公司 | Apparatus and method for controlling a charge current |
| CN109843636A (en) * | 2016-10-14 | 2019-06-04 | 菲尼克斯电动交通有限公司 | It is used for transmission the temperature monitoring charging system of charging current |
| CN211150996U (en) * | 2019-11-26 | 2020-07-31 | 宜春学院 | Automatic control socket |
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| CN114765332A (en) | 2022-07-19 |
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