CN211063817U - Flash detection control device, electronic equipment comprising same and system - Google Patents
Flash detection control device, electronic equipment comprising same and system Download PDFInfo
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- CN211063817U CN211063817U CN201920546379.4U CN201920546379U CN211063817U CN 211063817 U CN211063817 U CN 211063817U CN 201920546379 U CN201920546379 U CN 201920546379U CN 211063817 U CN211063817 U CN 211063817U
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Abstract
The application discloses flash detection controlling means, including its electronic equipment and system, this flash detection controlling means is applied to in consumer's power supply circuit, including detection circuit, control circuit and drive circuit, detection circuit is arranged in detecting the flash signal among the power supply circuit and generates the detected signal, and control circuit is arranged in receiving detected signal and outside wireless control signal to based on this detected signal or outside wireless control signal to pass through the state of drive circuit control consumer and take place to change. The electric equipment is controlled through the detection to the flash signal in this application, can not cause the power supply influence to wireless control circuit simultaneously, has realized entity switch and wireless signal simultaneously to the control of electric equipment.
Description
Technical Field
The application relates to the technical field of smart homes, in particular to a flash detection control device, electronic equipment comprising the same and a system.
Background
The intelligent home is characterized in that a home is used as a platform, facilities related to home life are integrated by utilizing a comprehensive wiring technology, a network communication technology, a safety precaution technology, an automatic control technology and an audio and video technology, an efficient management system of home facilities and family schedule affairs is constructed, home safety, convenience, comfortableness and artistry are improved, and an environment-friendly and energy-saving living environment is realized. In general, smart homes are premised on home automation, i.e., utilizing microprocessor electronics to integrate or control electronic appliances or systems in the home, such as: patch board, lighting lamp, audio, coffee stove, computer equipment, security system, heating and cooling system, video and audio system, etc.
At present, with the development of the internet and the internet of things technology, smart homes are more and more widely applied. For example, various novel intelligent household electrical appliances are connected to a network in a wired or wireless manner, so that remote/automatic control of the household electrical appliances through a mobile terminal or the network is realized. However, the smart home technology in the prior art still has the following problems:
1. the compatibility problem of intelligent household electrical appliances and traditional circuit wiring. For example, the existing intelligent switch generally needs a single live wire, and the traditional circuit wiring causes great inconvenience if the traditional circuit wiring is rewired, so that a single live wire electricity-taking technology without rewiring is developed. In current single fire gets electricity, single fire intelligence switch need insert the electric wire netting with lamps and lanterns after establishing ties, like this, and intelligent switch circuit can't work when the electric current is little, and can lead to the intermittent type nature of lamps and lanterns to flicker the scheduling problem when the electric current is too big.
2. The intelligent household appliance product and the traditional household appliance product are compatible in operation habit. At present, most of intelligent household appliances coexist with traditional household appliances in most families, and how to use different operations in different scenes conveniently and quickly is an inevitable problem of intelligent home furnishing. For example, when the user is not at home, the intelligent appliance is more likely to be controlled through the network, and when the user is at home, the intelligent appliance is more likely to be directly operated. In the current intelligent household, in order to ensure the controllable at any time of the intelligent household appliances, the intelligent household appliances are generally required to keep an electric connection state. Thus, if a user turns off a line switch of an intelligent household appliance (such as an intelligent lamp) during home operation, the intelligent household appliance cannot receive network or wireless control any more because the intelligent household appliance is in an open circuit state.
3. The normal work of the existing intelligent household electrical appliance depends on the normal work of a power grid and a network, and the situations of power grid power failure or network abnormity and the like which can possibly occur can not be effectively solved. For example, when the power grid is powered off when the smart appliance is in the working state, the smart appliance needs to be in a specific working state after the power grid is restored, so as to avoid waste of electric energy (such as a lamp) or ensure normal operation of the smart appliance (such as a refrigerator).
Therefore, it is desirable to provide a flash detection control device, an electronic apparatus including the same, and a system for the same.
Disclosure of Invention
In order to solve at least one of the above problems, an object of the present application is to provide a flash detection control device, an electronic apparatus including the same, and a system including the same.
The utility model discloses a first aspect discloses a flash detection controlling means, is applied to in the power supply circuit of consumer, including detection circuit, control circuit and drive circuit, detection circuit is arranged in detecting the flash signal in the power supply circuit and generates the detected signal, and control circuit is used for receiving detected signal and outside wireless control signal to the state based on detected signal or outside wireless control signal through the drive circuit control consumer takes place to change.
Optionally, the flash detection control device further comprises a flash switch connected in series in the power supply circuit, and when the flash switch is flashed, a flash signal is generated.
Optionally, the flash time of the flash switch is a fixed value.
Optionally, the flash switch is a normally closed contact switch or a self-recovery switch.
Optionally, the detection circuit detects the glitch signal and generates a first detection signal;
the control circuit receives and judges whether the flash signal is a first flash signal or not based on the first detection signal;
the control circuit generates a control signal based on the judgment result of the detection circuit; and
the driving circuit receives the control signal and drives the electric equipment to be converted from the first state to the second state based on the control signal.
Optionally, the flash detection device further comprises a processing circuit, the processing circuit comprises a rectifier, a filter, a first DC-DC converter and a second DC-DC converter connected in parallel with the first DC-DC converter in series, wherein,
the processing circuit is electrically connected with the control circuit through the first DC-DC converter; and
the processing circuit is electrically connected with the driving circuit through a second DC-DC converter.
Optionally, the input end of the detection circuit is electrically connected to the input end of the rectifier.
Optionally, the detection circuit includes a first resistor and a second resistor, wherein a first end of the first resistor is electrically connected to the output end of the first DC-DC converter, a second end of the first resistor is connected to a first end of the second resistor for generating the first detection signal and feeding the first detection signal to the control circuit, and a second end of the second resistor is grounded.
Optionally, the control circuit comprises a first Micro Control Unit (MCU), wherein,
when the first MCU judges that the voltage value of the first detection signal is reduced firstly and then increased in first preset time, the first MCU judges that the flash signal is the first flash signal, generates a first control signal and drives the electric equipment to be changed from the first state to the second state.
Optionally, the control circuit comprises a first Micro Control Unit (MCU), the detection circuit is electrically connected to the first MCU via a second MCU, the second MCU has an independent power supply, wherein,
when the second MCU judges that the voltage value of the first detection signal is firstly reduced and then increased within the first preset time, the second MCU judges that the flash signal is the first flash signal, and generates and sends a first control signal to the first MCU;
the first MCU receives the first control signal and drives the electric equipment to be changed from the first state to the second state.
Optionally, the detection circuit is further configured to detect the glitch signal and generate a second detection signal, wherein,
the detection circuit further comprises a third resistor and a fourth resistor, wherein the first end of the third resistor is electrically connected with the output end of the second DC-DC converter, the second end of the third resistor is connected with the first end of the fourth resistor for generating a second detection signal and feeding the second detection signal to the control circuit, the second end of the fourth resistor is grounded, and the first capacitor is connected to two ends of the fourth resistor in parallel.
Optionally, the control circuit comprises a first Micro Control Unit (MCU), wherein,
when the first MCU judges that the voltage value of the first detection signal is firstly reduced and then increased within first preset time, or when the first MCU judges that the time that the voltage value of the second detection signal is firstly reduced and then increased is longer than the first preset time and the voltage value of the second detection signal after being increased is longer than a first threshold value, the first MCU judges that the flash signal is a first flash signal;
the first MCU generates a first control signal and drives the electric equipment to be changed from a first state to a second state.
Optionally, when the first MCU determines that the time that the voltage value of the second detection signal decreases first and then increases is longer than a first predetermined time, and the voltage value of the second detection signal after increasing is smaller than a first threshold, the first MCU determines that the flash signal is the second flash signal;
the first MCU generates a second control signal and drives the electric equipment to keep a preset state.
Optionally, the flash detection device further comprises a timing circuit, the timing circuit is connected in series with the control circuit, the control circuit comprises a first Micro Control Unit (MCU), wherein,
when the first MCU judges that the voltage value of the first detection signal is reduced firstly and then increased within first preset time, and the recovery time of the voltage value of the first detection signal recorded by the timing circuit is less than second preset time, the first MCU judges that the flash signal is the first flash signal, generates a first control signal and drives the electric equipment to be changed from a first state to a second state;
the recovery time is the time from the lowest voltage value to the highest voltage value in the process of first reduction and then rise of the voltage value of the first detection signal.
A second aspect of the present application discloses an electronic device comprising the above-described flash detection apparatus.
A third aspect of the present application discloses a flash detection system comprising the above-mentioned flash detection apparatus, the flash detection system comprising a power consuming device.
The invention has the following beneficial effects:
the utility model provides a flash detection controlling means, including its electronic equipment and system, through the cooperation that adopts flash switch and flash detection controlling means, guaranteed that supply circuit is under the condition of on-state always, control the consumer through the flash signal, wireless switch passes through wireless connection control consumer simultaneously, the simultaneous control of entity switch and wireless switch to the consumer has been realized, and wireless switch can not become invalid because of closing of entity switch to the control of consumer.
In the electronic equipment or system comprising the flash detection control device, the normally closed contact switch or the self-recovery switch can replace the original entity switch, the layout and the installation structure of the electric equipment are changed little or basically, the improvement is simple, the cost is low, and the compatibility of the existing wired control and the newly added wireless control is realized.
Drawings
In order to more clearly illustrate the technical solutions in the prior art and the embodiments of the present application, the drawings that are needed to be used in the description of the prior art and the embodiments of the present application will be briefly described below. Of course, the following description of the drawings related to the embodiments of the present application is only a part of the embodiments of the present application, and it will be obvious to those skilled in the art that other drawings can be obtained from the provided drawings without any creative effort, and the obtained other drawings also belong to the protection scope of the present application.
FIG. 1 is a schematic structural diagram of a flash detection control device according to an embodiment of the present application;
FIG. 2 is a schematic structural diagram of a flash switch in an embodiment of the present application;
FIG. 3 is a schematic structural diagram of another embodiment of a flash detection control apparatus;
FIG. 4 is a schematic structural diagram of another embodiment of a flash detection control device;
FIG. 5 is a schematic diagram of a detection circuit according to an embodiment of the present disclosure;
FIG. 6 is a schematic diagram of another detection circuit in the embodiment of the present application;
FIG. 7 is a schematic diagram of a detection circuit according to an embodiment of the present application;
FIG. 8 is a schematic diagram of a further detecting circuit in the embodiment of the present application;
FIG. 9 is a schematic diagram of a further detecting circuit in the embodiment of the present application;
FIG. 10 is a schematic diagram of a power-on control circuit according to an embodiment of the present disclosure;
fig. 11 is a schematic structural diagram of a voltage divider circuit according to an embodiment of the present application;
fig. 12 is a schematic diagram of a capacitor charging/discharging circuit structure according to an embodiment of the present disclosure.
Detailed Description
At present, intelligent consumer can be controlled by mobile terminal usually, but when implementing, for avoiding the user unable control consumer when unable use mobile terminal, the consumer is furnished with the mechanical switch (entity switch) that is used for controlling this consumer supply circuit break-make usually, but mechanical switch disconnection back, and power supply stops to consumer and control circuit power supply, therefore the consumer reaches and can't control through mobile terminal. Therefore, after the mechanical switch is turned off, a technical problem to be solved by those skilled in the art is how to enable the mobile terminal to continuously control the electric equipment.
To solve the problems and the disadvantages of the prior art, the inventor of the present application finds that the setting of the flash detection control device can solve the problems and the disadvantages of the prior art, that is, the flash switch sends a flash signal to control the operating state of the electric equipment, and at this time, the power supply circuit can respond to the control instruction and normally supply power to the electric equipment, so that the user can control the operating state of the electric equipment through the mobile equipment.
The above prior art solutions have drawbacks that are the results of practical and careful study, and therefore, the discovery process of the above problems and the solutions proposed by the following embodiments of the present application to the above problems should be the contributions of the applicant to the present application in the course of the present application.
In order to more clearly and completely describe the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The utility model provides a flash detection controlling means, be applied to among the power supply circuit of consumer, including detection circuitry, control circuit and drive circuit, detection circuitry is arranged in detecting the flash signal among the power supply circuit and generates the detected signal, and control circuit is used for receiving detected signal and outside wireless control signal to the state based on detected signal or outside wireless control signal passes through the drive circuit and controls the consumer and changes.
One application scenario of the present application is: for example, a WiFi ceiling lamp is installed in a living room, and after the WiFi ceiling lamp is turned off through a wall switch of the living room, the ceiling lamp is powered off completely, so that the lamp cannot be wirelessly controlled through wireless control equipment such as APP. When the power supply circuit of the electric equipment comprises the flash detection device, the flash switch only provides a flash signal during operation, so that the power supply circuit of the electric equipment is ensured not to be powered off or only to be powered off for a short time (dozens of milliseconds to a few seconds), the circuit is still powered on during the power off, and then the power can be restored again. Can all the time through this ceiling lamp of wiFi control like this, realize entity switch and wireless switch to the simultaneous control of consumer and do not influence each other.
In this application, through the cooperation that adopts flash switch and detection control circuit, guaranteed that the circuit is under the condition of on-state all the time, flash switch passes through flash signal control consumer, and wireless switch passes through wireless connection control consumer, has realized entity switch and wireless switch and to the simultaneous control of consumer, and wireless switch can not become invalid because of closing of entity switch to the control of consumer.
It should be noted that with conventional switches, the powered device is completely powered down when it is open. For the flash switch in the application, the power consumption equipment is only instantly powered off when the power is off and then powered on in a short time, or the power consumption equipment is not powered off and only drops voltage and then quickly recovers to a normal level.
The present application will now be described with reference to specific examples
Example 1
As shown in fig. 1, the present embodiment provides a flash detection control device, which is applied to a power supply circuit of an electrical device, and includes a detection circuit, a control circuit and a driving circuit, wherein the detection circuit is configured to detect a flash signal in the power supply circuit and generate a detection signal, and the control circuit is configured to receive the detection signal and an external wireless control signal, and control a state transition of the electrical device through the driving circuit based on the detection signal or the external wireless control signal.
Specifically, the flash detection control device includes a detection circuit, a control circuit, and a drive circuit. When the power supply circuit flashes, a flash signal is generated, and the detection circuit detects the flash signal and generates a first detection signal; the control circuit receives and judges whether the flash signal is a first flash signal or not based on the first detection signal; the control circuit generates a control signal based on the judgment result of the detection circuit; and the driving circuit receives the control signal and drives the electric equipment to be converted from the first state to the second state based on the control signal.
Specifically, in the embodiment of the present application, the flash switch connected in series in the power supply circuit of the electrical device may provide the flash signal, and the flash switch is used for controlling the electrical device and the power supply of the control circuit to be conducted. The first end of the flash switch is connected with the power supply end of the power grid, and a power supply source of the flash detection control device in the embodiment of the application is provided. When the flash switch is operated, the flash switch controls the power supply circuit to be disconnected instantly, and at the moment, the flash switch can be regarded as triggering a flash signal. In the embodiment of the present application, the power supplied by the power grid may be a commercial power, and may be an alternating current of 110V or 220V, which is not limited herein.
In the embodiment of the application, the driving circuit is connected with the second end of the flash switch. When the flash switch is switched on, the power supplied by the power grid is fed to the driving circuit through the flash switch, and the driving circuit is used for driving the electric equipment to work.
In this application embodiment, detection circuit's input links to each other with the second end of flash switch, and flash circuit's output links to each other with control circuit. When the flash switch flashes, the detection circuit generates a first detection signal and feeds it to the control circuit.
In the embodiment of the application, the control circuit is connected with the second end of the flash switch. When the flash switch is switched on, the power grid supplies power to the control circuit through the flash switch. After receiving the first detection signal from the detection circuit, the control circuit judges whether the flash signal sent by the flash switch is the first flash signal. In the embodiment of the present application, the first flash signal is a flash signal generated by a normal flash operation. When the control circuit judges that the flash signal generated by the operation is the first flash signal, the control circuit generates a control signal and sends the control signal to the drive circuit based on wireless control. The driving circuit receives the control signal and drives the electric equipment to be converted into a second state from a first state.
In the embodiment of the present application, the electric devices may be various devices such as lighting devices, smart televisions, heating and cooling devices, humidification and purification devices, and audio devices, and thus the electric devices may have a plurality of states. Taking a lighting fixture as an example, the lighting fixture can have a lighting state, an off state, different brightness states (such as a small night light), a flashing state, etc., and taking an audio device as an example, the lighting fixture can have an operating state, a standby state, and an off state.
In the embodiment of the application, when the flash switch flashes, the flash signal can be generated. The flash-off operation is an operation of quickly breaking and restoring conduction to a circuit, the flash-off switch is a switch capable of quickly opening the circuit after the circuit is broken, and the flash-off time is the time of breaking the circuit corresponding to the circuit during the flash-off operation. Typically, the flash time is 200ms to 2 s.
The type of the flash switch is not limited in the present application, and in one example, the flash switch may be a self-restoring switch (self-rebounding switch). It should be understood that if the existing mechanical switch is operated in a fast 'off-on' manner, the flash signal can be triggered, but due to the instability of the operation, the flash time is inconsistent, so that the detection of the flash signal by the detection circuit is affected, and the problem of insensitive response or misoperation is easily caused. The self-recovery switch or the self-rebounding switch has the advantages that the automatic recovery device is arranged inside the switch, so that the consistency of the flash-off time can be guaranteed, namely the flash-off time of the flash-off switch is a fixed value.
Further, after the flash switch provides the flash signal, the flash signal can be transmitted to the detection circuit in a wired or wireless manner, or the detection signal of the detection circuit can be transmitted to the control circuit in a wired or wireless manner. Specifically, when the flash signal is transmitted in a wireless manner, the control circuit can receive the wireless signal from the flash switch and can also receive the wireless signal from the external wireless device (such as a mobile phone APP), so that the entity switch and the external wireless signal can control the electric device at the same time.
In the embodiment of the application, the control circuit can control the state of the electric equipment to be changed through the driving circuit based on the detection result of the detection circuit or the external wireless control signal. Here, the control circuit does not limit the control method of the electric device, and may be a wireless method or a wired method. Specifically, when the control circuit detects the flash signal, the state of the electric equipment is directly controlled to be changed; when the control circuit detects the external wireless control signal, the state of the electric equipment is controlled to be changed based on the wireless control signal. Due to the requirement of line connection, the control circuit can carry out remote wireless control on the electric equipment, and thus, the control circuit can be designed into an independent application module, and the line transformation cost can be further reduced.
In another example, the flash switch may be a normally closed contact switch. As shown in fig. 2, switch a is a single-pole single-throw switch, and switch B is a single-pole double-throw switch. When the switch A is closed and the moving end of the switch B moves from the 1 st end to the 2 nd end, the circuit is flashed, namely the switch B of the normally closed contact is used as a flash switch in the circuit. Furthermore, a common switch A and a flash switch B in the circuit can coexist, and when the common switch A is required to be used, the normal on-off of the switch A can control the on-off of the circuit; when the flash switch B is needed, the switch B can be regarded as the flash switch only by keeping the switch A in a normally closed state.
The flash detection control method applied to the flash detection control device comprises the following steps:
the power supply circuit provides a flash signal;
the detection circuit detects the flash signal and generates a first detection signal;
the control circuit judges whether the first detection signal is a first flash signal or not and generates a control signal based on the judgment result; and
the driving circuit receives the control signal and drives the electric device to be converted from the first state to the second state based on the control signal.
In the embodiment of the present application, the control of the flash detection is mainly described, but it should be understood that when the control circuit generates the control signal based on the determination result, the control signal may be generated directly according to the determination result, or the control signal may be generated by synthesizing the determination result and the external wireless control signal, or the control signal may be generated directly according to the external wireless control signal.
Example 2
As shown in fig. 3, the present embodiment provides a flash detection control device, which is different from embodiment 1 in that: the flash detection device in this embodiment further includes a processing circuit.
In the embodiment of the application, the processing circuit comprises a rectifier, a filter, a first DC-DC converter and a second DC-DC converter which is connected with the first DC-DC converter in series in sequence, wherein the processing circuit is electrically connected with the control circuit through the first DC-DC converter; and the processing circuit is electrically connected with the driving circuit through the second DC-DC converter.
In the embodiment of the application, the input end of the processing circuit is connected with the output end of the flash switch, the output end of the processing circuit is connected with the control circuit through the first DC-DC converter, and the output end of the processing circuit is connected with the driving circuit through the second DC-DC converter, so as to rectify and filter the input alternating current.
A rectifier is a device that converts alternating current to direct current. Most of the rectifier circuits are composed of a transformer, a main rectifier circuit, a filter and the like. The rectification circuit in the power circuit mainly comprises a half-wave rectification circuit, a full-wave rectification circuit and a bridge rectification circuit, and the voltage doubling rectification circuit is used for rectifying other alternating current signals, for example, used in a light emitting diode level indicator circuit to rectify audio signals. In the embodiment of the application, a bridge rectifier circuit is adopted.
The filter is a filter circuit consisting of a capacitor, an inductor and a resistor. The filter can effectively filter the frequency point of the specific frequency in the power line or the frequencies except the frequency point to obtain a power signal of the specific frequency or eliminate the power signal of the specific frequency.
In the embodiment of the application, the flash switch controls the opening and closing of the alternating current, and the input alternating current is generally 110V or 220V. The rectifier circuit is a circuit that converts ac power into dc power, and the voltage after passing through the rectifier circuit is not an ac voltage but a mixed voltage containing a dc voltage and an ac voltage, which is called a dc pulsating voltage. The filter can filter out the alternating current component in the direct current ripple voltage, and the voltage after passing through the filter is called direct current bus voltage HV, and the direct current bus voltage HV is stable. If the DC voltage is 220V, the DC bus voltage HV is 310V.
Generally, a DC bus voltage value is high and is not suitable as a supply voltage for a control circuit, and therefore a DC-DC converter is required. The DC-DC converter is a voltage converter which can effectively output fixed voltage after converting input voltage, and can convert the input direct current bus voltage with higher voltage value into the output power supply voltage with lower voltage value. The voltage of the direct current bus voltage HV after being converted by the first DC-DC converter is VCC, and the voltage of the direct current bus voltage HV after being converted by the second DC-DC converter is VDD.
It should be noted that, in the embodiment of the present application, the power supply voltage is not limited to the commonly used alternating currents 110v and 120v, but also includes other alternating current power supply voltages, and also includes a direct current power supply mode, and the like, and is not limited in the present application.
In the embodiment of the application, the input end of the detection circuit is connected with the output end of the flash switch. In another example, as shown in fig. 4, the input of the detection circuit is connected to the output of the rectifier.
It should be understood that, since a filter such as a capacitor is connected behind the rectifier, and it is necessary to drive electric equipment, the dropping speeds of the dc bus at the front end and the rear end of the rectifier are different. In particular, sampling from the front end of the rectifier in fig. 3 has a higher detection sensitivity than sampling from the back end of the rectifier in fig. 4.
Example 3
As shown in fig. 5, the detection circuit includes a first resistor R1 and a second resistor R2, wherein a first end of R1 of the first resistor is electrically connected to the output end of the first DC-DC converter and the voltage thereof is VDD or HV, a second end of the first resistor R1 is connected to a first end of the second resistor R2 for generating the first detection signal ADC1 and feeding the first detection signal to the control circuit, and a second end of the second resistor R2 is connected to the ground GND.
The control circuit comprises a first Micro Control Unit (MCU), and when the first MCU judges that the voltage value of the first detection signal is reduced firstly in a first preset time and then is increased, the first MCU judges that the flash signal is the first flash signal, generates a first control signal and drives the electric equipment to be changed from a first state to a second state.
The detection principle is as follows: when the flash switch triggers the flash operation, the voltage value of VDD or HV may rapidly decrease, and when the flash operation of the flash switch is completed, the voltage value of VDD or HV may rapidly increase. Therefore, when the first MCU determines that the voltage value of the first detection signal first decreases and then increases within the first predetermined time, the first MCU determines that the flash signal is the first flash signal, i.e. the flash signal generated during the normal flash operation. The control circuit enables the output state of the IO port of the first MCU to be reversed according to the judgment result, the output state reversal of the IO port of the first MCU can be used as a first control signal, and the driving circuit drives the electric equipment to be changed from the first state to the second state based on the first control signal.
In the embodiment of the application, the control circuit wireless control driving circuit can be based on various wireless transmission modes, including but not limited to wireless transmission modes such as WiFi, B L E, ZigBee, infrared, bluetooth, NB-IoT, and the like.
It should be noted that, in the embodiment of the present application, when the flash switch is operated quickly, that is, the flash time is short, due to the existence of the energy storage element and the DC-DC converter, the first MCU is maintained not to be powered down; when the operation of the flash switch is slow, namely the flash time is long, the first MCU can realize restarting after power failure.
In this embodiment of the application, there may be various ways for the first MCU to determine that the voltage value of the first detection signal decreases first and then increases within the first predetermined time, for example, when determining that the voltage value of the first detection signal gradually decreases to be lower than a certain threshold voltage and then gradually increases to be higher than the threshold voltage, determining that the voltage value of the first detection signal decreases first and then increases; or judging whether the first detection signal voltage curve is descending first and then ascending or not by judging the slope of the first detection signal voltage curve.
Fig. 6 is another example of the detection circuit of the present embodiment. In this example, the control circuit comprises a first MCU to which the detection circuit is electrically connected via a second MCU having an independent power supply VCC', for example battery powered.
When the second MCU judges that the voltage value of the first detection signal is reduced firstly and then increased in first preset time, the second MCU judges that the flash signal is the first flash signal, and generates and sends a first control signal to the first MCU. The first MCU receives the first control signal and drives the electric equipment to be changed from the first state to the second state.
This example differs from the embodiment of fig. 5 in that: a second MCU with an independent power supply is also included in this example. When the detection circuit works, the power consumption of the second MCU is very low, so that a power supply can be supplied to the second MCU through the power supply of a battery, and the continuous uninterrupted power supply of the MCU is ensured.
Example 4
As known to those skilled in the art, in addition to the need for accurate determination of the switching action of the flash switch, the flash action of the flash switch needs to be distinguished from the grid outage.
On the basis of embodiment 3, as shown in fig. 7, the detection circuit further includes a third resistor R3 and a fourth resistor R4, a first end of the third resistor R3 is electrically connected to the output terminal of the second DC-DC converter, a second end of the third resistor R3 is connected to a first end of the fourth resistor R4 for generating the second detection signal ADC2 and feeding the second detection signal to the control circuit, a second end of the fourth resistor R4 is grounded, and the first capacitor C1 is connected in parallel to two ends of the fourth resistor R4.
In this embodiment, when the first MCU determines that the voltage of the first detection signal ADC1 first decreases and then increases within a first predetermined time, or when the first MCU determines that the time that the voltage of the second detection signal ADC2 first decreases and then increases is longer than the first predetermined time, and the voltage of the second detection signal ADC2 after increasing is longer than a first threshold, the first MCU determines that the glitch signal is the first glitch signal. At the moment, the first MCU generates a first control signal and drives the electric equipment to be changed from the first state to the second state.
When the first MCU judges that the time of the voltage value of the second detection signal rising after falling is longer than the first preset time and the voltage value of the second detection signal rising is smaller than the first threshold value, the first MCU judges that the flash signal is the second flash signal. At this time, the first MCU generates the second control signal and drives the electric device to maintain a predetermined state.
The detection principle is as follows: when the flash switch triggers the flash operation, the power supply is recovered in a short time, so that the voltage value of the first detection signal ADC1 is firstly reduced and then increased in a first preset time, and the flash signal can be judged to be the flash signal caused by the normal flash operation of the flash switch; when the power grid is powered off to trigger the 'flash signal', the power grid is disconnected for a period of time when the power grid is powered off, so that the flash time of the 'flash signal' is generally longer, the electric energy of the energy storage element C1 is gradually exhausted, the voltage value of the second detection signal ADC2 is smaller than the first threshold after a certain time, at this time, if the voltage value of the second detection signal ADC2 is still larger than the first threshold after a certain time, the 'flash signal' can still be considered as the flash signal caused by normal flash operation of the flash switch, and if the voltage value of the second detection signal ADC2 is smaller than the first threshold after a certain time, the 'flash signal' is judged to be generated for the power grid power off.
Taking 220V commercial power as an example, the time required from the power-off to the voltage drop of 3.3V for supplying power to the control circuit is 500 ms. When a user operates the flash switch, if power supply is recovered within 500ms, the voltage value of the first detection signal ADC1 will first decrease and then increase within 500ms, and at this time, it can be determined that the flash signal is a flash signal caused by normal flash operation of the flash switch. When the time from circuit breaking to power supply recovery is more than 500ms, if the voltage value of the second detection signal ADC2 is more than 1V, the flash signal can still be considered as the flash signal caused by normal flash operation of the flash switch, and if the voltage value of the second detection signal ADC2 is less than 1V, the 'flash signal' is judged to be generated when the power grid is cut off.
The first MCU judges that the flash signal is the second flash signal, namely judges that the 'flash signal' is generated when the power grid is powered off, and at the moment, the first MCU generates a second control signal and drives the electric equipment to keep a preset state.
In practice, after the grid outage is resumed, states that different electric devices need to maintain are different, for example, for lighting devices, after the grid outage is resumed for a long time, the lighting devices generally need to be maintained in an off state to avoid loss of electric energy. For electric equipment such as refrigerators, the normal working state is the working state, so that the power grid needs to be maintained in the connected working state after long-time power grid power failure recovery. That is, the predetermined state in the embodiment of the present application refers to a state preset according to the attribute of the electric device.
It should be understood that the MCU with the independent power source VCC' in another example of the detection circuit of embodiment 3 is still applicable to this embodiment, and has similar technical effects, which are not described herein again.
Example 5
On the basis of embodiment 3, as shown in fig. 8, the flash detection device in this embodiment further includes a timing circuit, the timing circuit is connected in series with the control circuit, and the control circuit includes a first MCU.
When the first MCU judges that the voltage value of the first detection signal is reduced firstly and then increased in first preset time, and the recovery time of the voltage value of the first detection signal recorded by the timing circuit is less than second preset time, the first MCU judges that the flash signal is the first flash signal, generates a first control signal and drives the electric equipment to be changed from a first state to a second state.
In this embodiment, the recovery time is a time from the lowest voltage value to the highest voltage value in the process of increasing the voltage value of the first detection signal after decreasing.
In this embodiment, the power supply recovery time is determined by the timing circuit, and compared with the power supply recovery time determined by the discharge of the energy storage element C1 in embodiment 4, the determination of the timing circuit is more accurate, the circuit response is more sensitive, and the circuit structure is simpler.
Example 6
As shown in fig. 9, in the present embodiment, a flash detection device includes a power-on control circuit, a voltage dividing circuit, and a capacitor charging/discharging circuit.
Specifically, as shown in fig. 10, the power-on detection circuit includes a PMOS transistor Q6, an NMOS transistor Q7, a resistor R44, a resistor R45, a resistor R46, a resistor R48, and a resistor R47. The first end of R48 is connected to IO of MCU, the second end of R48 is electrically connected to the gate of Q7 and the first end of R47, the second end of R47 is electrically connected to the source of Q7 and then grounded to AGND, the first end of R44, the first end of R45 and the first end of R46 are electrically connected, the second end of R44 is connected to VDD/HV, the second end of R45 is connected to the gate of Q6, the second end of R46 is connected to the drain of Q7, the source of Q6 is connected to VDD/HV, and the drain of Q6 is connected to the voltage divider circuit.
Specifically, as shown in fig. 11, the voltage dividing circuit includes a resistor R49 and a resistor R50. The first end of R49 is electrically connected with the drain of Q6, the second end of R49 is electrically connected with the first end of R50 and then connected to the capacitor charging and discharging circuit, and the second end of R50 is grounded AGND.
Specifically, as shown in fig. 12, the capacitance charging and discharging circuit includes a diode D10, a resistor R1, a zener diode D2, and a capacitor C16. The anode of D10 is electrically connected to the second end of R49 and the first end of R50, the cathode of D10 is electrically connected to the cathode of D2 via R1, the anode of D2 is grounded AGND, the first end of C16 is electrically connected to the cathode of D10 and the pin G60 of the MCU for outputting the ADC1 signal, and the second end of C16 is grounded AGND.
In this embodiment, the resistance of R1 is 1K Ω, the resistance of R44 is 51K Ω, the resistance of R45 is 100K Ω, the resistance of R46 is 200K Ω, the resistance of R47 is 10K Ω, the resistance of R48 is 1K Ω, the resistance of R49 is 15K Ω, the resistance of R50 is 1K Ω, the capacitance of C16 is 1 μ F, and the stable voltage value of D2 is 2V.
The flash detection device can realize the detection of the following three states:
1) when the user quickly operates the flash switch, the MCU is not powered down.
2) When the speed of operating the flash switch by a user is low, the MCU can be restarted after power failure;
3) when the power grid is powered off and the power grid is powered on, the MCU can be restarted.
The working principle is analyzed as follows:
when the IO port of the MCU outputs high level, the NMOS transistor Q7 is conducted, then the PMOS transistor Q6 is conducted, and the input voltage is sent to the first end of R49; when the IO port of the MCU outputs low level, the NMOS transistor Q7 is cut off, then the PMOS transistor Q6 is cut off, and no voltage exists at R49. The voltage division circuit composed of R49 and R50 is used for reducing the voltage output by the transformer. In the capacitor charging and discharging circuit, when the flash switch is turned off, the circuit diode D10 charges the capacitor C16, and the capacitor is fully charged after a certain time. Then, when the capacitor discharges, two discharging paths are provided, wherein one discharging path passes through the diode D10, and D10 is in a reverse cut-off state, so that the leakage current of the discharging path is very small; the other discharge path is R1 and D2, when the voltage across the capacitor is larger than the voltage of the Zener diode, the discharge current of the capacitor is large, the voltage across the capacitor is reduced to the same voltage value as the Zener diode, then the Zener diode is in the cut-off state, and the leakage current of the discharge path of R1 and D2 becomes small. Thereafter, the voltage across C16 can be maintained for a long time while the voltage of C16 is passed directly to the ADC pin of the MCU.
When the circuit is temporarily powered off due to the flash of the flash switch, the voltage across the zener diode can be maintained at the two ends of the C16, and when the power grid is powered off, the voltage across the C16 is gradually released and is lower than the voltage across the zener diode or is reduced to zero. Therefore, the MCU can distinguish the voltages at the two ends of C16 and thus different switching actions by the determination of the ADC signal.
It should be noted that, when the MCU is restarted after power failure, the voltage at the two ends of the C16 will drop, and after power is turned on again, the PMOS transistor Q6 is in the off state, and will not charge the C16, and after the signal detection of the ADC is completed, the PMOS transistor Q6 is turned on, and then the C16 is instantly fully charged.
The application also discloses an electronic device comprising the flash detection device. The flash detection device can be integrated in the electronic equipment, and can also be independently arranged with the electronic equipment.
Further, the application also discloses a flash detection system comprising the flash detection device, and the flash detection system comprises electric equipment.
In this application, when the operation flash switch, the disconnection of short time appears in the consumer circuit, and when loosening flash switch, the consumer circuit resumes normal close state, produces a flash signal in the consumer circuit in this period. The wireless control circuit can continuously work, receives wireless control signals in real time and controls the on-off of the electric equipment. And because the short-time power supply that normally closed point touched the switch and is interrupted, can not lead to the fact the power supply influence to wireless control circuit, the consumer circuit can transmit the switch action information that normally closed point touched the switch again and give wireless control circuit and let it carry out the circular telegram opposite with current state or outage action. Therefore, the power supply of the electric equipment can be controlled in a two-way mode through the entity switch and the wireless signal.
In addition, this application only need replace former switch to and with inside or install additional around the consumer can, be applicable to very much under the house environment, carry out intelligent transformation to traditional electrical apparatus. Because the common switch is replaced by the reformed double-control switch or other flash switches, no extra space is needed, the replacement process is very simple and easy to operate.
It should be noted that like reference numerals and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present application, unless otherwise explicitly stated or limited, the terms "disposed" and "connected" are to be understood broadly, and may for example be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or through an intermediate medium, or they may be connected internally between two elements. The above-mentioned meaning belonging to the present application can be understood by those of ordinary skill in the art as the case may be.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It is further noted that, throughout this document, relational terms such as "first" and "second" are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, circuit, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, circuit, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, circuit, article, or apparatus that comprises the element.
The technical solutions provided by the present application are described in detail above. The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the circuit and its core ideas of the present application. It should be noted that, for those skilled in the art, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall into the protection scope of the present application.
Claims (16)
1. The utility model provides a flash detection controlling means, is applied to in the power supply circuit of consumer, characterized by, includes detection circuit, control circuit and drive circuit, detection circuit is used for detecting the flash signal in the power supply circuit and produces the detection signal, control circuit is used for receiving detection signal and external wireless control signal, and based on detection signal or the change takes place for the state of consumer through drive circuit control.
2. The apparatus of claim 1, further comprising a flash switch connected in series with the power supply circuit, wherein the flash switch generates a flash signal when a flash occurs.
3. The flash detection control device according to claim 2, wherein the flash time of the flash switch is a fixed value.
4. The flash detection control device according to claim 2, wherein the flash switch is a normally closed contact switch or a self-recovery switch.
5. The flash detection control apparatus according to claim 1,
the detection circuit detects the flash signal and generates a first detection signal;
the control circuit receives and judges whether the flash signal is a first flash signal or not based on the first detection signal;
the control circuit generates a control signal based on the judgment result of the detection circuit; and
the driving circuit receives the control signal and drives the electric equipment to be converted from a first state to a second state based on the control signal.
6. The glitch detection control device of claim 5, further comprising a processing circuit including, in series, a rectifier, a filter, a first DC-DC converter, and a second DC-DC converter in parallel with the first DC-DC converter, wherein,
the processing circuit is electrically connected with the control circuit through the first DC-DC converter; and
the processing circuit is electrically connected with the driving circuit through the second DC-DC converter.
7. The flash detection control device according to claim 6, wherein an input of the detection circuit is electrically connected to an input of the rectifier.
8. The glitch detection control device of claim 6, wherein the detection circuit includes a first resistor and a second resistor, wherein a first terminal of the first resistor is electrically connected to the output terminal of the first DC-DC converter, a second terminal of the first resistor is connected to a first terminal of the second resistor for generating the first detection signal and feeding the control circuit, and a second terminal of the second resistor is grounded;
the control circuit comprises a first MCU, and the first MCU is used for judging the voltage value of the first detection signal.
9. The apparatus according to claim 8, wherein when the first MCU determines that the voltage value of the first detection signal first decreases and then increases within a first predetermined time, the first MCU determines that the flash signal is the first flash signal, generates a first control signal, and drives the electric device to change from the first state to the second state.
10. The flash detection control device according to claim 8, wherein the detection circuit is electrically connected to the first MCU via a second MCU having an independent power supply and being configured to determine a voltage value of the first detection signal,
when the second MCU judges that the voltage value of the first detection signal is firstly reduced and then increased within first preset time, the second MCU judges that the flash signal is the first flash signal, and generates and sends a first control signal to the first MCU;
and the first MCU receives the first control signal and drives the electric equipment to be changed from a first state to a second state.
11. The glitch detection control device of claim 8, wherein the detection circuit is further configured to detect the glitch signal and generate a second detection signal, wherein,
the detection circuit further comprises a first capacitor, a third resistor and a fourth resistor, wherein a first end of the third resistor is electrically connected with an output end of the second DC-DC converter, a second end of the third resistor is connected with a first end of the fourth resistor for generating the second detection signal and feeding the second detection signal to the control circuit, a second end of the fourth resistor is grounded, and the first capacitor is connected to two ends of the fourth resistor in parallel.
12. The flash detection control apparatus according to claim 11, wherein the first MCU is further configured to determine a voltage value of the second detection signal, wherein,
when the first MCU judges that the voltage value of the first detection signal is firstly reduced and then increased within first preset time, or when the first MCU judges that the time that the voltage value of the second detection signal is firstly reduced and then increased is longer than the first preset time and the voltage value of the second detection signal after being increased is longer than a first threshold value, the first MCU judges that the flash signal is the first flash signal;
the first MCU generates a first control signal and drives the electric equipment to be changed from a first state to a second state.
13. The apparatus according to claim 12, wherein when the first MCU determines that the time period from the first decrease to the subsequent increase of the voltage value of the second detection signal is longer than the first predetermined time period, and the voltage value of the second detection signal after the increase is smaller than the first threshold, the first MCU determines that the flash signal is a second flash signal;
and the first MCU generates a second control signal and drives the electric equipment to keep a preset state.
14. The flash detection control device according to claim 8, further comprising a timing circuit in series with the control circuit, wherein,
when the first MCU judges that the voltage value of the first detection signal is reduced firstly and then increased within first preset time, and the recovery time of the voltage value of the first detection signal recorded by the timing circuit is less than second preset time, the first MCU judges that the flash signal is the first flash signal, generates a first control signal and drives the electric equipment to be changed from a first state to a second state;
the recovery time is the time from the lowest voltage value to the highest voltage value in the process of first reduction and then rise of the voltage value of the first detection signal.
15. An electronic device, characterized in that it comprises a flash detection control device according to any one of the preceding claims 1-14.
16. A flash detection system comprising a consumer, characterized in that the flash detection system further comprises a flash detection control device according to any of the preceding claims 1-14.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| PCT/CN2019/084480 WO2019206262A1 (en) | 2018-04-26 | 2019-04-26 | Flash-off detection control apparatus, and electronic device and system comprising same |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810384719.8A CN108377606A (en) | 2018-04-26 | 2018-04-26 | A kind of self- recoverage switch and its intelligent switch system |
| CN201810384211.8A CN108684116A (en) | 2018-04-26 | 2018-04-26 | A kind of Intelligent switching circuit |
| CN2018103849865 | 2018-04-26 | ||
| CN2018103842118 | 2018-04-26 | ||
| CN2018103847198 | 2018-04-26 | ||
| CN201810384986.5A CN108770115A (en) | 2018-04-26 | 2018-04-26 | A kind of judgment method of switch motion |
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| CN211063817U true CN211063817U (en) | 2020-07-21 |
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| CN109951928A (en) * | 2018-04-26 | 2019-06-28 | 青岛亿联客信息技术有限公司 | A kind of flash detection control apparatus, electronic equipment and system including it |
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| CN110726931A (en) * | 2019-11-01 | 2020-01-24 | 北京小米移动软件有限公司 | On-off detection circuit of flash switch and electronic equipment |
| CN112707301B (en) * | 2021-01-06 | 2022-08-19 | 上海新时达电气股份有限公司 | Switch detection method, device, electronic equipment and storage medium |
| CN114002622B (en) * | 2021-10-28 | 2024-02-27 | 上海电气风电集团股份有限公司 | Communication detection method, device and readable storage medium |
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| JP4785804B2 (en) * | 2006-08-04 | 2011-10-05 | 三菱電機株式会社 | Discharge lamp lighting device, lighting fixture, lighting system, and output indicator |
| JP6092604B2 (en) * | 2012-12-10 | 2017-03-08 | ローム株式会社 | DC / DC converter and control circuit thereof, power supply using the same, power adapter, and electronic device |
| JP6113527B2 (en) * | 2013-03-01 | 2017-04-12 | ローム株式会社 | DC / DC converter and control circuit thereof, power supply using the same, power adapter, and electronic device |
| CN103950701B (en) * | 2014-02-21 | 2016-09-14 | 秦皇岛港股份有限公司 | A kind of belt control loop bracing wire flash detecting system |
| CN105182802B (en) * | 2014-06-23 | 2018-04-17 | 武汉市酷享科技有限公司 | It is a kind of based on manually and radio double-control switching system and its control method |
| JP6598645B2 (en) * | 2015-11-11 | 2019-10-30 | キヤノン株式会社 | Image forming apparatus and power failure detection apparatus |
| JP6723085B2 (en) * | 2016-06-15 | 2020-07-15 | ローム株式会社 | Insulated DC/DC converter, power adapter using the same, and electronic device |
| CN107135593B (en) * | 2017-06-07 | 2023-12-05 | 深圳市奥金瑞科技有限公司 | Intelligent switch detection and identification circuit |
| CN207166186U (en) * | 2017-09-12 | 2018-03-30 | 一汽-大众汽车有限公司 | A kind of vehicle-mounted charge display circuit and motor vehicle |
| CN107889310B (en) * | 2017-11-20 | 2023-11-17 | 上海芯飞半导体技术有限公司 | LED switch color temperature-adjusting control chip, control method and LED lighting lamp |
| CN211063817U (en) * | 2018-04-26 | 2020-07-21 | 青岛亿联客信息技术有限公司 | Flash detection control device, electronic equipment comprising same and system |
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| CN109951928A (en) * | 2018-04-26 | 2019-06-28 | 青岛亿联客信息技术有限公司 | A kind of flash detection control apparatus, electronic equipment and system including it |
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