CN106959614B - Method and system for controlling power supply of household electrical appliance - Google Patents
Method and system for controlling power supply of household electrical appliance Download PDFInfo
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- CN106959614B CN106959614B CN201710230155.8A CN201710230155A CN106959614B CN 106959614 B CN106959614 B CN 106959614B CN 201710230155 A CN201710230155 A CN 201710230155A CN 106959614 B CN106959614 B CN 106959614B
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- 230000005540 biological transmission Effects 0.000 claims description 14
- 238000012544 monitoring process Methods 0.000 claims description 11
- 230000005856 abnormality Effects 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
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- 230000004048 modification Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B15/00—Systems controlled by a computer
- G05B15/02—Systems controlled by a computer electric
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/418—Total factory control, i.e. centrally controlling a plurality of machines, e.g. direct or distributed numerical control [DNC], flexible manufacturing systems [FMS], integrated manufacturing systems [IMS] or computer integrated manufacturing [CIM]
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/26—Pc applications
- G05B2219/2642—Domotique, domestic, home control, automation, smart house
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Abstract
The invention discloses a method and a system for controlling power supply of household appliances, wherein the method comprises the following steps: acquiring the power supply condition of the household electrical appliance and the running environment condition of the household electrical appliance; and controlling the power supply of the household electrical appliance according to the power supply condition of the household electrical appliance and/or the running environment condition of the household electrical appliance. The scheme improves the safety of power supply of the household electrical appliance.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a method and a system for controlling power supply of household appliances.
Background
With the continuous improvement of the living standard of people and the continuous improvement of the modern technological level, new products of various household appliances (hereinafter also referred to as household appliances) are layered endlessly and enter into thousands of households, for example, air conditioning equipment becomes more intelligent, functions are more and more powerful, and not only refrigeration/heating but also fresh air filtering and the like can be realized. However, with the increasing of household electrical appliances and the increasing of their functions, the bearing capacity of the household power supply system is tested while the life of people is brought to convenience, and meanwhile, after some high-power electrical appliances, such as an electric heater, are aged, if the circuit is still loaded with a large current, the circuit has a very large fire hazard, so that with the increasing progress of the household electrical appliances, the safety of supplying power to the household electrical appliances is improved, so how to ensure the use safety of the current household power supply is a problem facing the present.
Disclosure of Invention
The invention provides a method and a system for controlling power supply of household appliances, which at least solve the problem of low use safety of the household appliances in the prior art.
To solve the above technical problem, according to an aspect of the embodiments of the present disclosure, there is provided a method for controlling power supply of a home appliance, the method including: acquiring the power supply condition of the household electrical appliance and the running environment condition of the household electrical appliance; and controlling the power supply of the household electrical appliance according to the power supply condition of the household electrical appliance and/or the running environment condition of the household electrical appliance.
Optionally, the home appliance power supply condition includes: the magnitude of the current value output by the power supply source controls the power supply of the household electrical appliance according to the power supply condition of the household electrical appliance and/or the running environment condition of the household electrical appliance, and the power supply control device comprises: when the current value output by the power supply is detected to be larger than the first threshold value, the power output to the household appliance which is running currently exceeds the second threshold value is reduced, and/or the household appliance is controlled to switch the working mode.
Optionally, knowing the operating environment condition of the home device includes: door opening information of at least two doors inside and outside a user residence is sequentially obtained, and the door opening information comprises: door opening angle information and temperature information on a door handle; controlling power supply of the home appliance according to power supply conditions of the home appliance and/or operation environment conditions of the home appliance, comprising: determining whether a user leaves a residence according to the sequence of door opening information of at least two doors, door opening angle information and temperature information on a door handle; judging whether the user leaves the residence or not, and if so, controlling the appointed household electrical appliance to be powered off; if the user is judged not to leave the residence, the specified household appliances in the unmanned room in the residence are controlled to be powered off.
Optionally, the method of the present invention further comprises: and monitoring the temperature of each household appliance and the temperature of the power transmission line in the user residence, and sending out alarm information if the temperature of the household appliance or the power transmission line reaches a third threshold value.
Optionally, knowing the operating environment condition of the home device includes: monitoring whether open fire occurs around household appliances in a user residence; controlling power supply of the home appliance according to power supply conditions of the home appliance and/or operation environment conditions of the home appliance, comprising: when the open fire is monitored to occur around the household electrical appliance in the user residence, the power supply of the power supply in the user residence is cut off; the method further comprises the steps of: when the open fire around the household electrical appliance in the user residence is monitored, alarm information is sent to the fire alarm.
According to another aspect of the embodiments of the present disclosure, there is provided a system for controlling power supply of a home appliance, including: the intelligent power supply system is used for controlling the power supply of the household electrical appliance according to the power supply condition of the household electrical appliance and/or the running environment condition of the household electrical appliance.
Optionally, the information acquisition device includes: the current sensor is used for monitoring the current output by the power supply; the intelligent power supply system is also used for reducing the power output to the household appliance which is currently running and exceeds the second threshold value when the current sensor detects that the current value output by the power supply is larger than the first threshold value, and/or controlling the household appliance to switch the working mode.
Optionally, the information acquisition device includes: the door control sensor is used for sequentially acquiring door opening angle information of at least two doors inside and outside a user residence, and the infrared sensor is used for acquiring temperature information on a door handle; the intelligent power supply system is also used for determining whether a user leaves a residence or not according to the sequence of the acquired at least two door opening information, door opening angle information and temperature information on a door handle; judging whether the user leaves the residence or not, and if so, controlling the appointed household electrical appliance to be powered off; if the user is judged not to leave the residence, the specified household appliances in the unmanned room in the residence are controlled to be powered off.
Optionally, the information acquisition device includes: the infrared sensor is used for acquiring the temperature of each household appliance and the temperature of the power transmission line in the user residence; the intelligent power supply system is also used for sending out alarm information when the temperature of each household electrical appliance or power transmission line acquired by the infrared sensor reaches a third threshold value.
Optionally, the information acquisition device includes: the intelligent power supply system is used for detecting whether open fire exists around all household electrical appliances in the user residence, and when the flame sensor detects that open fire exists around the household electrical appliances, the flame sensor cuts off the power supply of the power supply in the user residence and sends alarm information to fire alarms.
According to the scheme provided by the embodiment of the invention, the power supply condition of the household electrical appliance and the running environment condition of the household electrical appliance are obtained in real time, and the power supply of the household electrical appliance is controlled according to the power supply condition and/or the running environment condition of the household electrical appliance, so that the power supply of the household electrical appliance can be ensured to be controlled in real time according to the power supply condition and the using environment, and the power supply safety of the household electrical appliance is improved.
Drawings
Fig. 1 is a flowchart of a method for controlling power supply of a home appliance according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a system for controlling power supply of a home appliance according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.
Example 1
The present embodiment provides a method for controlling power supply of a home appliance, fig. 1 is a flowchart of the method, and as shown in fig. 1, the method includes the following steps:
step 101: acquiring the power supply condition of the household electrical appliance and the running environment condition of the household electrical appliance;
in this embodiment, the power supply status of the home devices may include information such as a power supply current of each home device, power consumed by each home device, and a total power supply current of all home devices. The operation environment conditions of the home appliance may include information such as whether a person is present in the user's residence, whether a person is present in each room in the user's residence, whether the user leaves the residence, the temperature of the home appliance and the power supply line, and whether there is an open flame around the home appliance. The power supply condition of the home appliance and the operation environment condition of the home appliance can be known through various sensors.
Step 102: and controlling the power supply of the household electrical appliance according to the power supply condition of the household electrical appliance and/or the running environment condition of the household electrical appliance.
In this embodiment, a current sensor may be used to obtain the current in each power supply line, and when it is monitored that the total current value output by the power supply is greater than the first threshold, power output to the home appliance that is currently running (the power consumption may be the actual power consumption or the rated power consumption of the home appliance) exceeds the second threshold is reduced, and/or the home appliance is controlled to switch the working mode; that is, when it is monitored that the total current value output from the power supply is greater than the first threshold value, the high-power home appliances, such as an air-powered water heater, an electric heater, an induction cooker, a refrigerator, and the like, among the currently operated home appliances, may be lowered.
In this embodiment, knowing the operating environment of the home appliance may specifically further include:
sequentially acquiring door opening information of at least two doors inside and outside a user residence, wherein the door opening information comprises: door opening angle information and temperature information on a door handle; based on this, controlling the power supply of the home appliance according to the power supply condition of the home appliance and/or the operation environment condition of the home appliance includes: determining whether a user leaves a residence according to the sequence of door opening information of at least two doors, door opening angle information and temperature information on a door handle; judging whether the user leaves the residence or not, and if so, controlling the appointed household electrical appliance to be powered off; if the user is judged not to leave the residence, the specified household appliances in the unmanned room in the residence are controlled to be powered off. The specified home appliance may specifically refer to a home appliance that does not need to be continuously standby. Such as air conditioning, television, etc. The door opening angle information can be sensed by using the door control sensor, and the user can judge whether to open or close the door by combining the two information. Further, the door opening sequence among a plurality of doors in the residence is combined, so that whether the user leaves home or not can be determined. Furthermore, the infrared sensor can be used to further detect whether a person is in each room in the user's residence.
The method provided by the embodiment can further comprise the following steps: and monitoring the temperature of each household appliance and the temperature of the power transmission line in the user residence, and sending out alarm information if the temperature of the household appliance or the power transmission line reaches a third threshold value. Wherein an infrared sensor can be utilized to detect the temperature of each home device and output circuit within the user's residence. The alarm information can be specifically sent to the mobile terminal of the user, so that the user can timely know the running condition of the household electrical appliance in the residence, and the household electrical appliance and the power supply line are ensured to be safe to supply power.
In this embodiment, knowing the operating environment of the home appliance may specifically further include: monitoring whether open fire occurs around household appliances in a user residence; specifically, flame sensors can be installed around the household appliances to monitor open fires around the household appliances. Based on this, controlling the power supply of the home appliance according to the power supply condition of the home appliance and/or the operation environment condition of the home appliance may specifically include:
when the open fire is monitored to occur around the household electrical appliance in the user residence, the power supply of the power supply in the user residence is cut off; on the basis, in order to further ensure the safety of the user residence, the method provided by the embodiment further comprises the following steps: when the open fire around the household electrical appliance in the user residence is monitored, alarm information is sent to the fire alarm.
According to the method provided by the embodiment of the invention, the power supply condition of the household electrical appliance and the running environment condition of the household electrical appliance are obtained in real time, and the power supply of the household electrical appliance is controlled according to the power supply condition and/or the running environment condition of the household electrical appliance, so that the power supply of the household electrical appliance can be ensured to be controlled in real time according to the power supply condition and the using environment, and the power supply safety of the household electrical appliance is improved. Meanwhile, the load of the power supply system can be intelligently judged, the power output of the high-power device is limited in a peak, and the power supply system is automatically cut off when no one is available, so that the electric energy is saved; and whether the short circuit ignition phenomenon exists in the household electrical appliance and the circuit is monitored, so that the fire hidden danger is reduced.
Example 2
The present embodiment provides another method for controlling power supply of a home appliance, which is the same as the implementation principle of the method for controlling power supply of a home appliance provided in the first embodiment, and the method for controlling power supply of a home appliance is described in terms of limiting power output of a high-power home appliance and intelligently cutting off a power supply.
First, the power output limitation of the high-power household electrical appliance is described:
the household electrical appliance in the family is connected to an intelligent power supply control center (hereinafter also referred to as an intelligent power supply system), basic parameters such as power, voltage and the like of the household electrical appliance are input to the intelligent power supply control center, the intelligent power supply control center monitors the current in each power transmission line in real time, and when the output total current reaches the current carrying peak value of the line, power limitation is carried out on some high-power devices, for example, the frequency limitation is carried out on a variable-frequency air conditioning system, and the air quantity is limited to be in a middle-low grade; the power of the induction cooker and the electric heater is limited to be in a low power mode, so that the excessive heating of the circuit is avoided.
Next, the intelligent power-off will be described:
the door opening angle and the temperature on the door handle are detected by sensors (a door control sensor and an infrared sensor) installed in the door, and whether the door is opened or closed is judged by the door opening angle. For the residence gate, by monitoring the opening angle of the gate and the temperature on the door handle (e.g., the owner closes the door and leaves, first the door handle towards the indoor side has temperature and then the door handle towards the outside has temperature), when the infrared sensor on the door handle conveys such a temperature sensing sequence, and the door control sensing device monitors the door opening, the intelligent power control center judges that the owner leaves the home. In addition, the infrared sensor monitors whether people remain in the living room or the room in the house, if no heat signal of the infrared sensor returns, the power control center judges that no people exist in the house, and then turns off some electric appliance power supplies which do not need to be standby, such as an air conditioner, a television, a water heater, a charger and the like; for the gate of the user residence, when the owner is detected to enter a room and the infrared sensor detects that the living room is not occupied, the electric appliance which is installed in the living room and does not need to be standby is powered off in the power supply control, and when the owner is detected to leave the room and the infrared sensor detects that the room is not occupied, the electric appliance which is installed in the room and does not need to be standby is powered off in the power supply control.
The power supply control center reduces standby power consumption of the electrical products in the home in the mode, avoids fire disaster caused by short circuit ignition of the electrical products, and reduces fire hidden danger.
In addition, the method provided by the embodiment can also monitor whether the temperatures of various electrical products and power transmission lines in the home are abnormal or not through the infrared sensor, and whether the temperatures reach the ignition point or not, when the temperature abnormality is monitored, the power control center gives an alarm, informs the home owner of the temperature abnormality occurrence point, prompts the temperature abnormality occurrence point to overhaul and prompt the owner of whether the power supply needs to be cut off or not, and if the open fire occurrence is monitored, the power control center directly cuts off the power supply and gives a fire alarm, so that the home loss is reduced as much as possible.
According to the method provided by the embodiment, whether a person exists in the user residence or not is monitored in real time, the temperatures of the indoor and door handles are monitored through the infrared sensor, meanwhile, the door control sensor senses the opening angle of the door, when the two monitoring and judging of a person at home are carried out, the household power supply is cut off, the standby power of household appliances is reduced, electric energy is saved, and meanwhile, the phenomena of short circuit ignition in the interior of an electric appliance and ignition of the home are avoided.
Example 3
The system for controlling power supply of a home appliance may be used to implement the method for controlling power supply of a home appliance provided in the first embodiment and the second embodiment, and fig. 2 is a schematic structural diagram of the system, and as shown in fig. 2, the system includes the following components:
the intelligent power system 21, the information acquisition device 22 (including the current sensor, the infrared sensor, the door control sensor and the flame sensor shown in fig. 2) and the household electrical appliance 23, wherein the household electrical appliance 23 is connected with the intelligent power system through the information acquisition device 22, the information acquisition device 22 is used for acquiring the power supply condition of the household electrical appliance and the operation environment condition of the household electrical appliance, and the intelligent power system 21 is used for controlling the power supply of the household electrical appliance according to the power supply condition of the household electrical appliance and/or the operation environment condition of the household electrical appliance.
As shown in fig. 2, the information acquisition device 22 in the present embodiment may be a current sensor for monitoring the current output by the power supply, based on which
The intelligent power supply system is also used for reducing the power output to the household appliance which is currently running and exceeds the second threshold value when the current sensor detects that the current value output by the power supply is greater than the first threshold value, and/or controlling the household appliance to switch the working mode.
As shown in fig. 2, the information collecting device 22 in this embodiment may further include an infrared sensor and a door control sensor, where the door control sensor (including at least two door control sensors respectively installed on different doors) is configured to sequentially obtain door opening angle information of at least two doors inside and outside the user residence, and the infrared sensor is configured to obtain temperature information on the door handle; on the basis, the intelligent power system 21 in this embodiment is further configured to determine whether the user leaves the residence according to the sequence of the acquired at least two door opening information, the door opening angle information and the temperature information on the door handle; judging whether the user leaves the residence or not, and if so, controlling the appointed household electrical appliance to be powered off; if the user is judged not to leave the residence, the specified household appliances in the unmanned room in the residence are controlled to be powered off.
The information acquisition device 22 in this embodiment may further include: the infrared sensor is used for acquiring the temperature of each household appliance and the temperature of the power transmission line in the user residence; based on this, the intelligent power supply system 21 in this embodiment is further configured to send out alarm information when the temperature of each home appliance or power transmission line acquired by the infrared sensor reaches the third threshold.
As shown in fig. 2, the information acquisition device 22 in this embodiment may further include: the intelligent power supply system in the embodiment is also used for cutting off the power supply of the power supply in the user residence and sending alarm information to a fire alarm when the flame sensor detects that the open fire occurs around the household appliances.
The system provided by the embodiment of the invention can acquire the power supply condition of the household electrical appliance and the running environment condition of the household electrical appliance in real time, and control the power supply of the household electrical appliance according to the power supply condition and/or the running environment condition of the household electrical appliance, so that the power supply of the household electrical appliance can be ensured to be controlled in real time according to the power supply condition and the using environment, and the power supply safety of the household electrical appliance is improved. Meanwhile, the load of the power supply system can be intelligently judged, the power output of the high-power device is limited in a peak, and the power supply system is automatically cut off when no one is available, so that the electric energy is saved; and whether the short circuit ignition phenomenon exists in the household electrical appliance and the circuit is monitored, so that the fire hidden danger is reduced. The specific manner in which the operations are performed by the various components of the systems of the embodiments described above have been described in detail in connection with embodiments of the method and will not be described in detail herein.
Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.
It is to be understood that the invention is not limited to the precise arrangements and instrumentalities shown in the drawings, which have been described above, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the invention is limited only by the appended claims.
Claims (10)
1. A method of controlling power to a home device, comprising:
acquiring the running environment condition of the household appliance;
controlling power supply of the household electrical appliance according to the running environment condition of the household electrical appliance;
the learning of the operating environment condition of the home appliance includes:
sequentially acquiring door opening information of at least two doors inside and outside a user residence, wherein the door opening information comprises: door opening angle information and temperature information on a door handle;
the controlling the power supply of the home appliance according to the running environment condition of the home appliance includes:
determining whether a user leaves a residence or not according to the sequence of the door opening information of the at least two doors, the door opening angle information and the temperature information on the door handle;
judging whether the user leaves the residence or not, and if so, controlling the appointed household electrical appliance to be powered off;
and if the user is judged not to leave the residence, controlling the specified household appliances in the unmanned room in the residence to be powered off.
2. The method according to claim 1, wherein the method further comprises:
acquiring the running environment condition and the power supply condition of the household electrical appliance;
and controlling the power supply of the household appliance according to the running environment condition and the power supply condition.
3. The method of claim 2, wherein the power supply condition comprises: the power supply control method includes the steps of controlling power supply of the household electrical appliance according to the running environment condition and the power supply condition, and the power supply control method includes:
when the current value output by the power supply is detected to be larger than the first threshold value, the power output to the household electrical appliance which is running currently exceeds the second threshold value is reduced, and/or the household electrical appliance is controlled to switch the working mode.
4. The method according to claim 1, wherein the method further comprises:
and monitoring the temperature of each household appliance and the temperature of the power transmission line in the user residence, and sending out alarm information if the temperature of the household appliance or the power transmission line reaches a third threshold value.
5. The method of any one of claims 1 to 4, wherein learning the operating environment condition of the home device comprises:
monitoring whether open fire occurs around household appliances in a user residence;
controlling power supply of the home device according to the operating environment condition of the home device, comprising:
when the open fire is monitored to occur around the household electrical appliance in the user residence, the power supply of the power supply in the user residence is cut off;
the method further comprises the steps of: when the open fire around the household electrical appliance in the user residence is monitored, alarm information is sent to the fire alarm.
6. A system for controlling power to a home device, comprising:
the intelligent power system is used for controlling the power supply of the household electrical appliance according to the running environment condition of the household electrical appliance;
the information acquisition device includes:
the door control system comprises an infrared sensor and a door control sensor, wherein the door control sensor is used for sequentially acquiring door opening angle information of at least two doors inside and outside a user residence, and the infrared sensor is used for acquiring temperature information on a door handle;
the intelligent power supply system is also used for determining whether a user leaves a residence or not according to the acquired sequence of the door opening information of the at least two doors, the door opening angle information and the temperature information on the door handle; judging whether the user leaves the residence or not, and if so, controlling the appointed household electrical appliance to be powered off; and if the user is judged not to leave the residence, controlling the specified household appliances in the unmanned room in the residence to be powered off.
7. The system of claim 6, wherein the system further comprises a controller configured to control the controller,
the information acquisition device is also used for acquiring the running environment condition and the power supply condition of the household electrical appliance; the intelligent power supply system is also used for controlling the power supply of the household electrical appliance according to the running environment condition and the power supply condition.
8. The system of claim 7, wherein the information acquisition device comprises:
the current sensor is used for monitoring the current output by the power supply;
the intelligent power supply system is also used for reducing the power output to the household electrical appliance which is running currently and exceeds a second threshold value when the current sensor detects that the current value output by the power supply is greater than the first threshold value, and/or controlling the household electrical appliance to switch the working mode.
9. The system of claim 7, wherein the information acquisition device comprises:
the infrared sensor is used for acquiring the temperature of each household appliance and the temperature of the power transmission line in the user residence;
the intelligent power supply system is further used for sending out alarm information when the temperature of each household appliance or the power transmission line acquired by the infrared sensor reaches a third threshold value.
10. The system according to any one of claims 6 to 9, wherein the information acquisition device comprises:
the intelligent power supply system is used for detecting whether open fire exists around each household electrical appliance in the user residence, and when the flame sensor detects that open fire exists around the household electrical appliance, the flame sensor cuts off the power supply of the power supply in the user residence and sends alarm information to a fire alarm.
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| CN109687409B (en) * | 2018-12-26 | 2021-01-19 | 福建师范大学福清分校 | Household safety power utilization intelligent protection system |
| CN109799769A (en) * | 2019-01-29 | 2019-05-24 | 深圳市卓亚云智能科技有限公司 | A kind of intelligent and safe electricity consumption energy management method and system |
| CN110672962A (en) * | 2019-10-22 | 2020-01-10 | 东莞市鸿茂物联网科技有限公司 | State monitoring system for electric equipment |
| CN111487883A (en) * | 2020-04-20 | 2020-08-04 | 西安交通大学 | Control method and control system for indoor power consumption equipment |
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| CN208819038U (en) * | 2017-04-10 | 2019-05-03 | 珠海格力电器股份有限公司 | The system for controlling household appliance power supply |
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| CN106959614A (en) | 2017-07-18 |
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