CN110988462A - Electricity-taking switch and electric quantity measuring method - Google Patents
Electricity-taking switch and electric quantity measuring method Download PDFInfo
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- CN110988462A CN110988462A CN201911294836.6A CN201911294836A CN110988462A CN 110988462 A CN110988462 A CN 110988462A CN 201911294836 A CN201911294836 A CN 201911294836A CN 110988462 A CN110988462 A CN 110988462A
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- 238000005259 measurement Methods 0.000 description 7
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- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R22/00—Arrangements for measuring time integral of electric power or current, e.g. electricity meters
- G01R22/06—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods
- G01R22/10—Arrangements for measuring time integral of electric power or current, e.g. electricity meters by electronic methods using digital techniques
Abstract
The application discloses get electric switch and electric quantity measuring method, and belongs to the field of get electric equipment. Get electric switch includes: get electric switch includes: the device comprises a power taking module, an electric quantity monitoring module and an electric quantity sending module; the power taking module is connected with a first end of the electric quantity monitoring module, and the electric quantity sending module is connected with a second end of the electric quantity monitoring module; the power taking module is used for providing electric energy for the electric appliance in a power taking state; the electric quantity monitoring module is used for calculating the electricity consumption generated by the electric appliance when the electricity taking module is in an electricity taking state. The electricity taking module comprises an electricity taking circuit and a relay, and the electric quantity monitoring module comprises a current sampling circuit, a voltage sampling circuit, an analog-to-digital converter and a main controller. The electricity taking switch has the function of measuring the electric quantity of the electricity taking circuit, and a user can obtain the respective electric quantity of each room in the room provided with the electricity taking switch.
Description
Technical Field
The application relates to the field of power taking equipment, in particular to a power taking switch and a measuring method of electric quantity.
Background
The power-taking switch controls the on-off of the circuit in a non-contact Near Field Communication (NFC) card reader and a relay mode.
Taking the electricity-getting switch as an example, when a user enters a hotel, the hotel staff is required to issue a room card of the room to the user, and the room card is also the electricity-getting card of the room. The user obtains the power supply by inserting the house card into the power switch of the hotel. After the NFC card reader reads the house card, the relay is controlled to form a passage, and the power supply of the room is switched on; and when the NFC card reader cannot read the house card, the relay is controlled to form a circuit, and the power supply of the room is disconnected. In the correlation technique, to get the electric switch and combine together with the bluetooth technique, the user passes through the mode that the electricity of getting in the terminal that will use and the room is connected through the bluetooth, the break-make of the power in the control room. The electric quantity of all rooms in the hotel is measured through one household electricity meter, and the hotel management system cannot count the electricity consumption of all the rooms.
Based on the situation, the power-taking switch can only be combined with a house card or a terminal used by a user to control the on-off of a room power supply, and the intelligent level is low.
Disclosure of Invention
The embodiment of the application provides a power-taking switch and a measuring method of electric quantity, and the problems that the power-taking switch in the related art can only control the on-off of a room power supply and the intelligent level is low can be solved. The technical scheme is as follows:
according to an aspect of the present application, there is provided a power-taking switch, comprising: the device comprises a power taking module, an electric quantity monitoring module and an electric quantity sending module; the power taking module is connected with a first end of the electric quantity monitoring module, and the electric quantity sending module is connected with a second end of the electric quantity monitoring module;
the power taking module is used for providing electric energy for the electric appliance in a power taking state;
the electric quantity monitoring module is used for calculating the electric quantity generated by the electric appliance when the electricity taking module is in the electricity taking state;
the electric quantity sending module is used for sending the electricity consumption to the terminal after being connected with the terminal.
In some embodiments of the present application, the power taking module includes a power taking circuit and a relay, and the electric quantity monitoring module includes a current sampling circuit, a voltage sampling circuit, an analog-to-digital converter, and a main controller;
the first end of the current sampling circuit is connected with the power-taking line in parallel, and the first end of the voltage sampling circuit is connected with the power-taking line in parallel;
the second end of the current sampling circuit is connected with the first input end of the analog-to-digital converter, and the second end of the voltage sampling circuit is connected with the second input end of the analog-to-digital converter;
the main controller is connected with the output end of the analog-to-digital converter and used for calculating the electricity consumption according to the voltage value and the current value output by the analog-to-digital converter when the relay conducts the electricity taking circuit.
In some embodiments of the present application, the current sampling circuit comprises: the current transformer and the current signal sampling circuit;
the first end of the current transformer is connected with the power taking line in parallel, and the second end of the current transformer is connected with the first end of the current signal sampling circuit;
and the second end of the current signal sampling circuit is connected with the first input end of the analog-to-digital converter.
In some embodiments of the present application, the voltage sampling circuit comprises: the voltage transformer and the voltage signal sampling circuit;
the first end of the voltage transformer is connected with the power taking line in parallel, and the second end of the voltage transformer is connected with the first end of the voltage signal sampling circuit;
and the second end of the voltage signal sampling circuit is connected with the second input end of the analog-to-digital converter.
In some embodiments of the present application, the power monitoring module further comprises: a memory chip; the main controller is connected with the storage chip.
In some embodiments of the present application, the power monitoring module further comprises: a clock RTC module; the master controller is connected with the RTC module.
In some embodiments of this application, it still includes to get the electric switch: a display screen; the main controller is connected with the display screen.
In some embodiments of this application, it still includes to get the electric switch: a serial bus interface; the main controller is connected with the serial bus interface.
In some embodiments of the application, get the electric module with electric quantity monitoring module integration is in same bluetooth control chip.
In some embodiments of the present application, the power transmission module includes: a Bluetooth control chip;
the Bluetooth control chip is connected with the main controller.
In some embodiments of the present application, the power take switch includes: a power supply circuit;
the power supply circuit is connected with the electric quantity monitoring module;
the power supply circuit is connected with the electric quantity sending module.
According to another aspect of the present application, there is provided an electric quantity measuring method, which is applied to the power-taking switch as described above, and includes:
when the electricity taking module is in an electricity taking state, the electric quantity monitoring module collects current signals and voltage signals generated by the electric appliance;
the electric quantity monitoring module calculates the electric quantity generated by the electric appliance according to the current signal and the voltage signal.
In some embodiments of this application, get the electric module and be in when getting the electric state, electric quantity monitoring module gathers the current signal and the voltage signal that the power consumption electrical apparatus produced include:
when the relay conducts the electricity taking line, the current sampling circuit collects an analog current signal in the electricity taking line, and the voltage sampling circuit collects an analog voltage signal in the electricity taking line;
the analog-to-digital converter converts the analog current signal into a digital current signal, and the analog-to-digital converter converts the analog voltage signal into a digital voltage signal;
and the main controller calculates the electricity consumption according to the digital current signal and the digital voltage signal.
In some embodiments of the present application, the current sampling circuit comprises a current signal sampling circuit, and the voltage sampling circuit comprises a voltage signal sampling circuit;
the analog-to-digital converter converts the analog current signal to a digital current signal, comprising:
the current signal sampling circuit converts the analog alternating current signal into an analog direct current signal;
the analog-to-digital converter converts the analog direct current signal into a digital direct current signal;
the analog-to-digital converter converts the analog voltage signal to a digital voltage signal, comprising:
the voltage signal sampling circuit converts the analog alternating current voltage signal into an analog direct current voltage signal;
the analog-to-digital converter converts the analog direct current voltage signal into the digital direct current voltage signal;
the main controller calculates the electricity consumption according to the digital current signal and the digital voltage signal, and the method comprises the following steps:
and the main controller calculates the electricity consumption according to the digital direct current signal and the digital direct current voltage signal.
In some embodiments of the present application, the calculating, by the main controller, the power consumption according to the digital dc current signal and the digital dc voltage signal includes:
the master controller acquires a time signal acquired by the RTC module;
and the main controller calculates the electricity consumption according to the digital direct current signal, the digital direct current voltage signal and the time signal.
In some embodiments of the present application, the current sampling circuit comprises a current transformer and a current signal sampling circuit, and the voltage sampling circuit comprises a voltage transformer and a voltage signal sampling circuit;
the current sampling circuit gathers the analog current signal that the power consumption electric appliance produced, includes:
the current transformer collects the alternating current value of the electric appliance;
the current signal sampling circuit converts the alternating current value into the analog alternating current signal;
the voltage sampling circuit obtains the analog voltage signal that the power consumption electric appliance produced, includes:
the voltage transformer collects the alternating current voltage value of the electric appliance;
the voltage signal sampling circuit converts the alternating voltage value into the analog alternating voltage signal. In some embodiments of the present application, the method further comprises:
the electric quantity monitoring module is connected with a terminal, an application program or an applet supporting control of the power-taking switch runs in the terminal, and the applet runs depending on a host program;
and the electric quantity sending module sends the electricity consumption quantity to the terminal.
In some embodiments of the present application, after the main controller is connected to the terminal, the method includes:
the electric quantity monitoring module receives a control instruction of the application program or the applet program;
and the electric quantity monitoring module controls the relay to switch on or switch off the power taking circuit according to the control instruction.
The beneficial effects brought by the technical scheme provided by the embodiment of the application at least comprise:
the current sampling circuit, the voltage sampling circuit and the analog-to-digital converter are arranged in the common electricity taking switch, current signals and voltage signals in an electricity taking line are obtained through the current sampling circuit and the voltage sampling circuit, and the current signals and the voltage signals are input into the analog-to-digital converter, so that the main controller can calculate electricity consumption according to current values and voltage values output by the analog-to-digital converter, the electricity taking switch has a function of measuring electricity quantity of the electricity taking line, and a user can obtain the electricity consumption of each room in the room provided with the electricity taking switch.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a block diagram of an implementation environment provided by an exemplary embodiment of the present application;
fig. 2 is a block diagram of a power-taking switch according to an exemplary embodiment of the present disclosure;
fig. 3 is a block diagram of a structure of a power-taking switch based on fig. 2 according to an exemplary embodiment of the present application;
fig. 4 is a block diagram of a power-taking switch according to another exemplary embodiment of the present application;
fig. 5 is a block diagram of a structure of a power-taking switch based on fig. 5 according to an exemplary embodiment of the present application;
fig. 6 is a block diagram of a power-taking switch based on fig. 5 according to another exemplary embodiment of the present application;
fig. 7 is a schematic diagram of a power-taking switch provided in an exemplary embodiment of the present application;
FIG. 8 is a flow chart of a method of measuring an amount of power provided by an exemplary embodiment of the present application;
FIG. 9 is a flow chart of a method of measuring an amount of power provided by another exemplary embodiment of the present application;
fig. 10 is a schematic view of a measurement interface for an amount of power provided by an exemplary embodiment of the present application.
Detailed Description
To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
First, terms referred to in the embodiments of the present application are described:
a power supply line: the power supply device comprises a power supply circuit, a power supply switch and a power supply switch, wherein the power supply circuit is used for providing power for a room, the power supply switch is connected to the power supply circuit and used for controlling the state of the whole power supply circuit, and when a user inserts a house card into the power supply switch, the power supply of the hotel room is switched on, and electric appliances in the room can be normally used.
Analog-to-Digital Converter (ADC): refers to an electronic component that converts an analog signal to a digital signal. The analog-to-digital converter in the embodiment of the application is used for converting an analog voltage signal into a digital voltage signal and converting an analog current signal into a digital current signal.
A main controller: the main controller in the embodiment of the application is a chip for calculating the power consumption, and is schematically a bluetooth control chip. The main controller receives signals of all components in the circuit and controls the power taking circuit to be in different states according to the signals.
Relay (Relay): the electronic control device is an electric appliance which enables controlled quantity to generate preset step change in an electric appliance output circuit when the change of input quantity meets the specified requirement, and one circuit is used for controlling the on-state or off-state of the other circuit.
Current Transformer (CT): the measuring instrument converts primary large current into secondary small current according to the electromagnetic induction principle.
Potential Transformer (PT): the voltage transformer is used for converting voltage, and the voltage transformer is used for supplying power for a measuring instrument and a relay protection device in a power-taking line, measuring the voltage, the power and the electric energy of the power-taking line, or protecting components in the line when the power-taking line fails.
A signal sampling circuit: the circuit is used for receiving an input voltage at a specified moment and holding the voltage at an output end until the next sampling starts. The signal sampling circuit in this application embodiment is used for current value and the voltage value in with getting the electric wire way and convert analog current signal and analog voltage signal respectively.
Rectifying Circuit (RC): refers to a circuit that converts ac power to dc power. The alternating current with lower voltage output by the alternating current step-down circuit is converted into unidirectional pulsating direct current.
FIG. 1 shows a block diagram of a computer system provided in an exemplary embodiment of the present application. The computer system 100 includes: the mobile terminal comprises a first power-taking switch 110, a second power-taking switch 130, a first terminal 120, a second terminal 160 and a server 140.
The first power switch 110 is connected to the first terminal 120 through a wireless communication technology, and optionally, the wireless communication technology is a bluetooth technology. The first power-taking switch 110 is disposed in a first room, optionally, the first room has at least one user, and terminals used by a plurality of users in the first room may be connected to the first power-taking switch 110. Illustratively, the first room has a first user, and the first terminal 120 is a terminal used by the first user. The first terminal 120 runs an application program or an applet supporting control of the power-taking switch, and the applet runs depending on the host program. The first user controls the states of the first power switch 110, such as the power-on state and the power-off state, through the first terminal 120.
The first terminal 120 is connected to the server 140 through a wireless network or a wired network.
The server 140 includes at least one of a server, a plurality of servers, a cloud computing platform, and a virtualization center. Illustratively, the server 140 includes a processor 144 and a memory 142, the memory 142 in turn including an acquisition module 1421, a display module 1422, and a processing module 1423. The server 140 is used for providing background services for the application programs or the small programs supporting the control of the power-taking switch. The obtaining module 1421 is configured to obtain a voltage value and a current value of a power taking line, the display module 1422 is configured to send the electric quantity measured by the power taking switch to other terminals, and the receiving module 1423 is configured to receive the electric quantity measured by the power taking switch. Alternatively, the server 140 undertakes primary computational work and the first terminal 120 undertakes secondary computational work; alternatively, the server 140 undertakes the secondary computing work and the first terminal 120 undertakes the primary computing work; alternatively, the server 140 and the first terminal 120 perform cooperative computing by using a distributed computing architecture.
The second terminal 160 is connected to the server 140 through a wireless network or a wired network.
The second power switch 130 is connected to the second terminal 160 through a wireless communication technology, and optionally, the wireless communication technology is a bluetooth technology. The second power-taking switch 130 is disposed in a second room, optionally, the second room has at least one user, and terminals used by a plurality of users in the first room may be connected to the second power-taking switch 130. Illustratively, the second room has a second user, and the second terminal 160 is a terminal used by the second user. The second terminal 160 runs an application program or an applet supporting control of the power-taking switch, and the applet is an applet running depending on the host program. The second user controls the states of the second power switch 130, such as the power-on state and the off state, through the second terminal 160.
Alternatively, the server 140 undertakes primary computational tasks and the second terminal 160 undertakes secondary computational tasks; alternatively, the server 140 undertakes the secondary computing work and the second terminal 160 undertakes the primary computing work; alternatively, the server 140 and the second terminal 160 perform cooperative computing by using a distributed computing architecture.
Optionally, the computer system 100 includes at least one management terminal 150, the management terminal 150 is connected to the server 140 through a wireless network or a wired network, the management terminal 150 is configured to manage at least one room, each management terminal 150 has the same application or applet installed thereon for managing power, or each management terminal 150 has the same application or applet installed thereon for managing power, which is of the same type of application for different control system platforms. The management terminal 150 may be generally referred to as one of a plurality of terminals, and the embodiment is illustrated only with the management terminal 150. The types of the devices of the terminals are the same or different, and the types of the devices include: at least one of a smartphone, a tablet, an e-book reader, an MP3 player, an MP4 player, a laptop portable computer, and a desktop computer, a notebook computer.
Those skilled in the art will appreciate that the number of terminals described above may be greater or fewer. For example, the number of the terminals may be only one, or several tens or several hundreds, or more, and the number of the power-taking switches may be more or less, for example, the number of the power-taking switches may be only one, or several tens or several hundreds, or more. The number of terminals and the type of the device are not limited in the embodiments of the present application.
The power-taking switch is that a user inserts a card corresponding to the power-taking switch into the power-taking switch, so that a circuit in a room is in a conducting state, and the user can normally use electrical equipment (such as lighting, televisions, air conditioners and the like) in the room. The power-taking switch is generally applied to places such as hotels, apartments, office buildings and the like, and can be used for effectively controlling a power supply in a room to achieve the purpose of saving power. Taking an electricity getting switch applied to a hotel as an example, in the related art, the electricity getting switch is only used for enabling a circuit in a room of the hotel to be in a conducting state, the hotel is only provided with one household electricity meter to measure the total electricity quantity of all the rooms, and the actual electricity consumption quantity of each room cannot be determined.
The application provides an get electric switch is provided with measuring circuit in getting electric switch, can obtain the electric quantity in every room. Fig. 2 shows a block diagram of a power-taking switch provided in an exemplary embodiment of the present application, where the power-taking switch 20 includes: get electric module 201, electric quantity monitoring module 202 and electric quantity sending module 203, get electric module 201 and electric quantity monitoring module 202's first end and link to each other, electric quantity sending module 203 links to each other with electric quantity monitoring module 202's second end. The power taking module 201 is used for providing electric energy for a power utilization circuit in a power taking state, the electric quantity monitoring module 202 is used for calculating the electric quantity generated by the power utilization electric appliance when the power taking module 201 is in the power taking state, and the electric quantity sending module 203 is used for sending the electric quantity to a terminal after being connected with the terminal.
Alternatively, the electric appliance refers to a device which needs a circuit to drive, such as a television, an air conditioner, an electric cooker, a lamp, and the like. The power utilization module is connected into the power utilization module, and the power utilization module provides electric energy for the power utilization device so as to ensure that the power utilization device can be normally used. Optionally, the terminal comprises at least one of a smartphone, a tablet, a desktop computer, and a laptop computer. Optionally, the first end of the power monitoring module 202 refers to any side of the power-taking module 201 or any side of the power-sending module 203 to which the power monitoring module 202 can be connected, and the second end refers to any side of the power-taking module 201 or any side of the power-sending module 203 to which the power monitoring module 202 can be connected.
Optionally, the power taking module 201 includes a power taking circuit and a relay, and the electric quantity monitoring module 202 includes a current sampling circuit, a voltage sampling circuit, an analog-to-digital converter, and a main controller.
Fig. 3 shows a block diagram of a power-taking switch provided in an exemplary embodiment of the present application, where the power-taking switch 10 includes: the power supply circuit 101, the current sampling circuit 102, the voltage sampling circuit 103, the analog-to-digital converter 104, the main controller 105 and the relay 106.
The power-taking circuit 101 is a circuit for providing power to a room, and the power-taking circuit is connected with a power-taking switch 10, and the power-taking switch 10 is used for controlling the state of the whole power-taking circuit. The first end of the current sampling circuit 102 is connected in parallel with the power-taking line 101, the second end of the current sampling circuit 102 is connected with the first input end of the analog-to-digital converter 104, the first end of the voltage sampling circuit 103 is connected in parallel with the power-taking line 101, and the second end of the voltage sampling circuit 103 is connected with the second input end of the analog-to-digital converter 104. The main controller 105 is connected to the output end of the analog-to-digital converter 104, and the main controller 105 is configured to calculate the power consumption according to the voltage value and the current value output by the analog-to-digital converter 104 when the relay 106 conducts the power taking line 101.
Optionally, the first end of the current sampling circuit 102 means that the current sampling circuit 102 can be connected to any side of the power-taking line 101, and the second end means that the current sampling circuit 102 can be connected to any side of the power-taking line 101; the first end of the voltage sampling circuit 103 means that the voltage sampling circuit 103 can be connected to any side of the power-taking line 101, and the second end means that the voltage sampling circuit 103 can be connected to any side of the power-taking line 101.
Optionally, a terminal used by a user may be connected to the power-taking switch 10 through bluetooth connection or wireless network connection, and the user controls the state of the power-taking switch 10 through the terminal, for example, if the user controls the power-taking switch 10 to be in a disconnected state, a room where the power-taking switch 10 is located has no power.
Optionally, the power switch 10 includes a card insertion module, the card insertion module is connected to the main controller, and a card insertion slot is disposed in the card insertion module. Illustratively, when a user inserts a house card corresponding to a room into the card slot, the card insertion module generates a card insertion signal, the main controller 105 receives the card insertion signal and controls the relay to connect the power line 101, and the user can use the electrical appliance in the room normally.
As shown in fig. 4, optionally, current sampling circuit 102 includes a current transformer 1021 and a current signal sampling circuit 1022.
A first end of the current transformer 1021 is connected in parallel with the power-taking line 101, a second end of the current transformer 1021 is connected with a first end of a current signal sampling circuit 1022, and a second end of the current signal sampling circuit 1022 is connected with a first input end of the analog-to-digital converter 104. Alternatively, the first end of the current transformer 1021 is any side of the current transformer 1021 that can be connected to the power line 101, and the second end is any side of the current signal sampling circuit 1022 that can be connected.
Optionally, the current transformer 1021 is a current transformer for measurement, and can provide current information of a circuit for devices such as measurement and metering in a normal operating current range, and the current transformer 1021 is connected in parallel with the power-taking line 101 to obtain a current value in the power-taking line 101. The current value in the power-taking line 101 is the current value of the alternating current. The current signal sampling circuit 1022 is configured to convert the current value obtained by the current transformer 1021 into an analog current signal. Alternatively, the current signal sampling circuit 1022 is a circuit that employs resistive sampling, or a circuit that employs operational amplifier sampling,
optionally, the voltage sampling circuit 103 includes a voltage transformer 1031 and a voltage signal sampling circuit 1032.
A first end of the voltage transformer 1031 is connected in parallel with the power-taking line 101, a second end of the voltage transformer 1031 is connected with a first end of a voltage signal sampling circuit 1032, and a second end of the voltage signal sampling circuit 1032 is connected with a second input end of the analog-to-digital converter 104. Alternatively, the first end of the voltage transformer 1031 refers to any side of the voltage transformer 1031 that can be connected to the power-taking line 101, and the second end refers to any side of the voltage signal sampling circuit 1032 that can be connected.
Optionally, the voltage transformer 1031 is a voltage transformer for measurement, and may provide voltage information of a circuit to a device for measurement and metering in a normal operating voltage range, the voltage transformer 1031 is connected in parallel to the power-taking line 101, and measures a voltage value in the power-taking line 101, and the voltage value in the power-taking line 101 is a voltage value of an alternating current. The voltage signal sampling circuit 1032 is configured to convert the voltage value obtained by the voltage transformer 1031 into an analog voltage signal. Alternatively, the voltage signal sampling circuit 1032 is a circuit that employs resistance sampling, or a circuit that employs operational amplifier sampling.
Alternatively, the current sampling circuit 102 includes a first rectifying circuit for converting an alternating current signal into a direct current signal, and the voltage sampling circuit 103 includes a second rectifying circuit for converting an alternating voltage signal into a direct voltage signal.
It should be noted that fig. 2, fig. 3, and fig. 4 are schematic structural block diagrams of the power-taking switch, which do not represent an actual connection situation, and the power-taking line 101, the current sampling circuit 102, and the voltage sampling circuit 103 have various embodiments and various connection manners therebetween.
To sum up, the get electric switch that this application embodiment provided through set up current sampling circuit, voltage sampling circuit and adc in ordinary get electric switch for main control unit can be according to the current value and the voltage value calculation power consumption of adc output, gets the electric switch and has the function of measuring the electric quantity of getting the electric wire way, and the user can acquire the respective power consumption in every room of installing above-mentioned getting the electric switch.
Optionally, the power monitoring module 202 further includes: a memory chip and a clock module.
Fig. 5 shows a block diagram of a power-taking switch according to another exemplary embodiment of the present application. Should get electric switch includes 11 and includes: the circuit comprises a power-taking line 101, a current sampling circuit 102, a voltage sampling circuit 103, an analog-to-digital converter 104, a main controller 105, a relay 106, a memory chip 107, a clock module 108, a display screen 109 and a serial bus interface 111. Among them, the clock module 108, the display screen 109 and the serial bus interface 111 are optional structures.
Alternatively, the main controller 105 is connected to the memory chip 107, or the main controller 105 includes a memory chip therein. The storage chip 107 is used for storing the electric quantity of the room where the power-taking switch is located. The main controller 105 is connected to a Clock module 108, and the Clock module 108(Real Time Clock, RTC) is a module for indicating Time and is also named as a Clock chip for transmitting Real Time to the main controller 105. The main controller 105 is connected to the display screen 109, and optionally, the display screen 109 is configured to display information of an operation state, real-time, an on-off state of a circuit, a terminal accessed by the power-taking switch, and the like of the power-taking switch. The main control unit is connected with the serial bus interface 111, optionally, the interface is a ModBUS/485 bus interface, which is an interface following the ModBUS serial communication protocol, and external devices conforming to the communication protocol, such as an ammeter, a remote controller and the like, can be connected with the power-taking switch.
Alternatively, the power-taking switch is configured as shown in fig. 6, and the power-taking switch 12 includes a power supply circuit 112 for supplying power to components in the power-taking switch. The power supply circuit 112 is connected with the electric quantity monitoring module 202, the power supply circuit 112 is connected with the electric quantity sending module 203, namely the power supply circuit 112 is connected with the power getting line, the power supply circuit 112 is connected with the current sampling circuit 102, the power supply circuit 112 is connected with the voltage sampling circuit 103, and the power supply circuit 112 is connected with the main controller 105. Optionally, the main controller 105 is a bluetooth control chip, and the bluetooth control chip is configured to calculate a voltage value and a current value output by the analog-to-digital converter to calculate a power consumption when the relay 106 is turned on the power-taking line. Optionally, get electric switch 12 and include the bluetooth control chip, get electric module 201 and electric quantity monitoring module 202 integration in same bluetooth control chip, bluetooth control chip is as main control unit 105 promptly, perhaps, electric quantity sending module 203 includes the bluetooth control chip, and the bluetooth control chip links to each other with main control unit 105, and the bluetooth control chip is used for getting the electric quantity of electric switch measurement with the transmission. Illustratively, this get electric switch 12 and set up in room A, have user a in room A, the smart mobile phone that user a used connects with getting electric switch 12 through the bluetooth, gets electric switch 12 and transmits the smart mobile phone that user a used with measured electric quantity through bluetooth control chip.
As shown in fig. 7, a display screen 602 is provided on the power supply switch 601, and information on the power supply switch is displayed on the display screen 602. Illustratively, the power-taking switch is a power-taking switch of the room 1404, and when a terminal used by a user in the room is connected to the power-taking switch 601, a room number, a name of an access terminal, an amount of electricity used in the room, an operation state of the power-taking switch 601, and a current time are displayed on the display screen 602, and the user can obtain corresponding information from the display screen 602. Optionally, get and be provided with the opening on the switch 601, when this room is the room in the hotel, can get the electricity in inserting the opening with the room card that this room corresponds, perhaps need not to use the room card, get the electricity through the mode that the terminal that lives in the user and use this and get switch 601 and be connected. Optionally, the power-taking switch 601 may be connected to a terminal used by a user through a bluetooth connection, or the power-taking switch 601 may be connected to a terminal used by the user through a Wireless network, for example, the power-taking switch 601 and the terminal used by the user are in the same Wireless Fidelity (WiFi) network.
In summary, the power-taking switch provided by this embodiment is provided with the clock module and the memory chip in the power-taking switch, so that the power-taking switch can measure and store the electric quantity of the power-taking line, and the function of measuring the electric quantity of the power-taking line by the power-taking switch is realized. Can show the information about getting the electric switch through setting up the display screen in getting the electric switch, set up serial bus interface and make and get the electric switch and connect multiple external equipment, when getting electric switch connection terminal, can with getting electric switch measuring electric quantity information transmission to the terminal in, convenience of customers looks over the room electric quantity on the terminal.
Fig. 8 is a flowchart illustrating a method for measuring an electric quantity according to an exemplary embodiment of the present application, where the method is applied to the above-mentioned power-taking switch. The method comprises the following steps:
Optionally, the power taking module comprises a power taking circuit and a relay. When the relay is conducted with the power-taking circuit, the current sampling circuit collects analog current signals in the power-taking circuit, and the voltage sampling circuit collects analog voltage signals in the power-taking circuit.
The relay controls the power taking circuit to be in a conducting state or a disconnecting state, and when the power taking circuit is in the conducting state, current passes through the power taking circuit, so that power can be supplied to equipment connected into the power taking circuit. Optionally, the current passing in the power line is an alternating current.
Optionally, the current sampling circuit comprises a current transformer and a current signal sampling circuit. The current transformer firstly collects the alternating current value of the electric appliance, and the current signal sampling circuit converts the alternating current value collected by the current transformer into an analog alternating current signal.
Optionally, the voltage sampling circuit comprises a voltage transformer and a voltage signal sampling circuit. Similarly, the voltage transformer collects the alternating voltage value of the electric appliance, and the voltage signal sampling circuit converts the alternating voltage value collected by the voltage transformer into an analog alternating voltage signal.
The analog-to-digital converter converts the analog current signal into a digital current signal, and the analog-to-digital converter converts the analog voltage signal into a digital voltage signal.
The current signal sampling circuit converts the analog alternating current signal into an analog direct current signal, and the analog-to-digital converter converts the analog direct current signal into a digital direct current signal.
The voltage signal sampling circuit converts the analog alternating current voltage signal into an analog direct current voltage signal, and the analog-to-digital converter converts the analog direct current voltage signal into a digital direct current voltage signal.
And step 802, the electric quantity monitoring module calculates the electric quantity generated by the electric appliance according to the current signal and the voltage signal.
Alternatively, the main controller calculates the amount of power used from the digital current signal and the digital voltage signal.
The main controller calculates the electricity consumption according to the digital direct current signal and the digital direct current voltage signal.
Optionally, the main controller acquires a time signal acquired by the RTC module, and the main controller calculates the power consumption according to the digital direct current signal, the numerical direct voltage signal, and the time signal. The main controller obtains a corresponding time period t (t is larger than 0) according to the two times of time sent by the RTC module. Electric quantity calculation formula: UIt, wherein W represents the electric quantity, U represents the direct current voltage value that the digital direct current voltage signal corresponds to, I represents the direct current value that the digital direct current signal corresponds to, t represents the time quantum, and the main control unit calculates the electric quantity in getting the electric wire according to this electric quantity computational formula.
In summary, in the method provided in this embodiment, the power consumption generated by the electrical appliance in the power line is measured by the power taking switch, the current sampling circuit arranged in the power taking switch can obtain the ac current value of the electrical appliance, convert the ac current value into the analog dc current signal, convert the analog dc current signal into the digital dc current signal recognizable by the main controller by the analog-to-digital converter, and obtain the digital dc voltage signal by the same conversion method, so that the main controller can calculate the power consumption generated by the electrical appliance according to the digital dc current signal and the digital dc voltage signal, and the user can obtain the respective power consumption of each room in the room in which the power taking switch is installed.
The explanation will be given by taking an example in which the power-taking switch is disposed in a hotel room. Fig. 9 illustrates a method for measuring an electric quantity according to another exemplary embodiment of the present application, where the method may be applied to the first power-taking switch or the second power-taking switch shown in fig. 1, or a power-taking switch in another computer system. The method comprises the following steps:
The initialization means that each circuit and component in the power-taking switch are in an initial state, so that the power-taking switch can normally operate, and if the power-taking switch can normally measure the electric quantity of a power-taking line in a room. Optionally, the number of times of initialization is fixed, or the number of times of initialization is set by a background server, or a user sets the number of times of initialization by an application program or an applet on the terminal that supports control of the power-taking switch. Schematically, this get electric switch is the switch of getting in the hotel room, when different terminals and this get electric switch and be connected, should get electric switch and will initialize, this different terminals are the terminal that different users who live in same room used.
And step 902, judging whether a time signal acquired by the clock module is received.
The main control unit is provided with the RTC module, and the main control unit is the bluetooth chip, or other control chip or controller for the record is got the operating time of electric switch, is long, is provided actual time for the user when the circuit in record hotel room is disconnected, and the RTC module can provide clock signal for follow-up circuit. Illustratively, the main control unit calculates the power consumption of the circuit of getting electricity from 3 pm to 5 pm, and the clock module sends first time signal to the main control unit at three pm, and the clock module sends second time signal to the main control unit at 5 pm, and the main control unit obtains the time quantum that the measurement electric quantity corresponds according to two time signal.
Schematically, the power-taking switch acquires voltage information and current information of hotel rooms. Optionally, the power-taking switch may obtain a current value, a voltage value, or a current value and a voltage value of a power-taking line corresponding to a hotel room. Optionally, the power-taking switch comprises a current transformer, a voltage transformer, a signal sampling circuit and a rectifying circuit. The current transformer is used for acquiring an alternating current value in the power taking line, and the voltage transformer is used for acquiring an alternating voltage value in the power taking line; the alternating current value passes through a current signal sampling circuit to obtain an alternating current signal, and the alternating voltage value passes through a voltage signal sampling circuit to obtain an alternating voltage signal; the alternating current signal passes through the rectifying circuit to obtain a direct current signal, and the alternating voltage signal passes through the rectifying circuit to obtain a direct voltage signal. The power-taking switch comprises an analog-to-digital converter which converts a direct current signal and a direct voltage signal into a digital direct current signal and a digital direct voltage signal which can be received by the main controller.
At step 904, the time slot data is time stamped and stored in memory.
The main controller receives the digital current signal and the digital voltage signal, and stamps a timestamp on the digital current signal and the digital voltage signal which are recorded by the RTC module and are generated by a power-taking line of a hotel room, wherein the timestamp is complete and verifiable data which can represent that data exists before a certain specific time, and is usually a character sequence which uniquely identifies the time at a certain moment. The main controller calculates the electricity consumption in the circuit of the hotel room according to the digital current signal, the digital voltage signal and the time period, and stores the electricity consumption in the memory. Alternatively, the memory is a Flash memory chip (Flash), an Embedded multimedia Card (EMMC), or other chip capable of storing data. Optionally, the main controller is a bluetooth control chip or another control chip, and when the main controller is another control chip, the bluetooth control chip is used for connecting with a terminal used by a user and transmitting data.
The power-taking switch can detect whether a terminal used by a user is accessed through the Bluetooth control chip. Optionally, the user may access the terminal through an application program on the terminal, or the user may access the terminal through an applet on the terminal, or the user may match a bluetooth address of the terminal with a bluetooth address of the power-taking switch, or the user connects the terminal to the same network as the power-taking switch, where the network may be a wired network or a Wireless network, and for example, the network may be a Wireless Fidelity (Wi-Fi).
The terminal used by the user is accessed into the server, the server can be a server of the hotel management system, or a server of a third-party platform, and the third-party platform comprises at least one of a hotel reservation platform, a shopping platform and a group purchase platform. And the electric quantity management system or the property management system of the hotel is accessed into the server. Optionally, the user sends the electricity consumption stored in the memory to a server through an application program or a small program supporting and controlling the electricity getting switch on the terminal, and the server sends the electricity consumption to an electricity management system of a hotel or a property management system.
At step 906, the power usage information is read and sent to the applet or application.
The main controller reads the electricity consumption information and sends the electricity consumption information to an applet or an application program on the terminal used by the user.
The method also comprises the following steps:
and S1, the electric quantity monitoring module is connected with the terminal, an application program or an applet supporting control of the power-taking switch runs in the terminal, and the applet runs depending on the host program.
Optionally, the power monitoring module includes a main controller, and the main controller is a bluetooth control chip or other controller. As shown in fig. 10 (a), an interface 20 is displayed on the terminal used by the user, the interface 20 is an interface of the power-taking switch applet, and the applet displays prompt information: is the power switch in the room 1404 connected? The user may select control 911, representing connected, or control 912, representing disconnected; as shown in fig. 10 (b), an interface 21 is displayed on the terminal used by the user, the interface 21 is an application named "universal switch", the application is an application supporting control of the power-taking switch, and the user can select a control 913 representing connection or a control 914 representing disconnection.
And S2, the electricity quantity sending module sends the electricity consumption quantity to the terminal.
Optionally, the electric quantity sending module includes a bluetooth control chip, and the electric quantity is sent to the terminal used by the user through the bluetooth control chip. The user receives the electricity consumption of the room in the small program or the application program, and the user can also control the electricity taking switch of the room through the small program or the application program.
And S11, after the electric quantity monitoring module is connected with the terminal, the electric quantity monitoring module receives a control instruction of an application program or an applet.
Optionally, the power monitoring module includes a main controller, and the main controller is a bluetooth control chip or other controller. Optionally, the control instruction includes an instruction generated by at least one of a single-click operation, a double-click operation, a sliding operation, a dragging operation, and a long-press operation. Illustratively, when a user clicks a connection control in an applet or an application, a terminal used by the user is connected with the power-taking switch.
And S22, the electric quantity monitoring module controls the relay to conduct the power taking circuit or disconnect the power taking circuit according to the control instruction.
Optionally, the power monitoring module includes a main controller, and the main controller is a bluetooth control chip or other controller. Optionally, the control command includes at least one of an on control command and an off control command. When the main controller receives a conduction control instruction, the relay is controlled to be connected with a power taking circuit; and when the main controller receives the disconnection control instruction, the relay is controlled to disconnect the power taking circuit.
Illustratively, as shown in fig. 1, a terminal used by a hotel staff is a management terminal 150, an applet or an application program supporting power management is installed or operated on the management terminal 150, the terminal includes at least one of a smart phone, a tablet computer, a notebook computer, and a desktop computer, and the hotel staff can read power consumption information from the applet or the application program or perform a corresponding power management operation. As shown in fig. 10 (c), a hotel management platform is provided on a terminal used by a hotel operator, the interface 22 is an interface of the hotel management platform, and the room number and the amount of electricity used in each room of the hotel are displayed on the interface 22. Optionally, the total power for all hotel rooms is also displayed in the interface 22. The hotel staff can manage according to the electric quantity displayed in each room.
In summary, according to the method provided by the embodiment, the power taking switch is installed in the hotel room, so that the electric quantity corresponding to the power taking line in each room can be obtained, and the hotel can be conveniently managed by the hotel staff according to the electric quantities in different rooms.
It should be understood that reference to "a plurality" herein means two or more. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk, etc.
The above description is only exemplary of the present application and should not be taken as limiting, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (18)
1. The utility model provides an get electric switch which characterized in that, it includes to get electric switch: the device comprises a power taking module, an electric quantity monitoring module and an electric quantity sending module; the power taking module is connected with a first end of the electric quantity monitoring module, and the electric quantity sending module is connected with a second end of the electric quantity monitoring module;
the power taking module is used for providing electric energy for the electric appliance in a power taking state;
the electric quantity monitoring module is used for calculating the electric quantity generated by the electric appliance when the electricity taking module is in the electricity taking state;
the electric quantity sending module is used for sending the electricity consumption to the terminal after being connected with the terminal.
2. The power-taking switch according to claim 1, wherein the power-taking module comprises a power-taking circuit and a relay, and the electric quantity monitoring module comprises a current sampling circuit, a voltage sampling circuit, an analog-to-digital converter and a main controller;
the first end of the current sampling circuit is connected with the power-taking line in parallel, and the first end of the voltage sampling circuit is connected with the power-taking line in parallel;
the second end of the current sampling circuit is connected with the first input end of the analog-to-digital converter, and the second end of the voltage sampling circuit is connected with the second input end of the analog-to-digital converter;
the main controller is connected with the output end of the analog-to-digital converter and used for calculating the electricity consumption according to the voltage value and the current value output by the analog-to-digital converter when the relay conducts the electricity taking circuit.
3. The power-taking switch according to claim 2, wherein the current sampling circuit comprises: the current transformer and the current signal sampling circuit;
the first end of the current transformer is connected with the power taking line in parallel, and the second end of the current transformer is connected with the first end of the current signal sampling circuit;
and the second end of the current signal sampling circuit is connected with the first input end of the analog-to-digital converter.
4. The power-taking switch according to claim 2, wherein the voltage sampling circuit comprises: the voltage transformer and the voltage signal sampling circuit;
the first end of the voltage transformer is connected with the power taking line in parallel, and the second end of the voltage transformer is connected with the first end of the voltage signal sampling circuit;
and the second end of the voltage signal sampling circuit is connected with the second input end of the analog-to-digital converter.
5. The power switch as claimed in any one of claims 2 to 4, wherein the power monitoring module further comprises: a memory chip;
the main controller is connected with the storage chip.
6. The power switch as claimed in any one of claims 2 to 4, wherein the power monitoring module further comprises: a clock RTC module;
the master controller is connected with the RTC module.
7. The power-taking switch according to any one of claims 2 to 4, further comprising: a display screen;
the main controller is connected with the display screen.
8. The power-taking switch according to any one of claims 2 to 4, further comprising: a serial bus interface;
the main controller is connected with the serial bus interface.
9. The power-taking switch according to any one of claims 1 to 4, wherein the power-taking module and the electric quantity monitoring module are integrated in the same Bluetooth control chip.
10. The power-taking switch according to any one of claims 2 to 4, wherein the electric quantity sending module comprises: a Bluetooth control chip;
the Bluetooth control chip is connected with the main controller.
11. The power-taking switch according to any one of claims 1 to 4, wherein the power-taking switch comprises: a power supply circuit;
the power supply circuit is connected with the electric quantity monitoring module;
the power supply circuit is connected with the electric quantity sending module.
12. A method for measuring electric quantity, which is applied to the power-taking switch according to any one of claims 1 to 11, and which comprises:
when the electricity taking module is in an electricity taking state, the electric quantity monitoring module collects current signals and voltage signals generated by the electric appliance;
the electric quantity monitoring module calculates the electric quantity generated by the electric appliance according to the current signal and the voltage signal.
13. The method according to claim 12, wherein when the electricity taking module is in an electricity taking state, the electric quantity monitoring module collects a current signal and a voltage signal generated by the electric appliance; the electric quantity monitoring module calculates the electricity consumption generated by the electric appliance according to the current signal and the voltage signal, and comprises:
when the relay conducts the power taking circuit, the current sampling circuit collects an analog current signal generated by the electric appliance, and the voltage sampling circuit collects an analog voltage signal generated by the electric appliance;
the analog-to-digital converter converts the analog current signal into a digital current signal, and the analog-to-digital converter converts the analog voltage signal into a digital voltage signal;
and the main controller calculates the electricity consumption according to the digital current signal and the digital voltage signal.
14. The method of claim 13, wherein the current sampling circuit comprises a current signal sampling circuit and the voltage sampling circuit comprises a voltage signal sampling circuit;
the analog-to-digital converter converts the analog current signal to a digital current signal, comprising:
the current signal sampling circuit converts the analog alternating current signal into an analog direct current signal;
the analog-to-digital converter converts the analog direct current signal into a digital direct current signal;
the analog-to-digital converter converts the analog voltage signal to a digital voltage signal, comprising:
the voltage signal sampling circuit converts the analog alternating current voltage signal into an analog direct current voltage signal;
the analog-to-digital converter converts the analog direct current voltage signal into the digital direct current voltage signal;
the main controller calculates the electricity consumption according to the digital current signal and the digital voltage signal, and the method comprises the following steps:
and the main controller calculates the electricity consumption according to the digital direct current signal and the digital direct current voltage signal.
15. The method of claim 14, wherein the master controller calculating the power usage from the digital dc current signal and the digital dc voltage signal comprises:
the master controller acquires a time signal acquired by the RTC module;
and the main controller calculates the electricity consumption according to the digital direct current signal, the digital direct current voltage signal and the time signal.
16. The method of claim 13, wherein the current sampling circuit comprises a current transformer and a current signal sampling circuit, and wherein the voltage sampling circuit comprises a voltage transformer and a voltage signal sampling circuit;
the current sampling circuit gathers the analog current signal that the power consumption electric appliance produced, includes:
the current transformer collects the alternating current value of the electric appliance;
the current signal sampling circuit converts the alternating current value into the analog alternating current signal;
the voltage sampling circuit gathers the analog voltage signal that the power consumption electric appliance produced, includes:
the voltage transformer collects the alternating current voltage value of the electric appliance;
the voltage signal sampling circuit converts the alternating voltage value into the analog alternating voltage signal.
17. The method of any of claims 12 to 16, further comprising:
the electric quantity monitoring module is connected with a terminal, an application program or an applet supporting control of the power-taking switch runs in the terminal, and the applet runs depending on a host program;
and the electric quantity sending module sends the electricity consumption quantity to the terminal.
18. The method of claim 17, wherein after the power monitoring module is connected to the terminal, the method comprises:
the electric quantity monitoring module receives a control instruction of the application program or the applet program;
and the electric quantity monitoring module controls the relay to switch on or switch off the power taking circuit according to the control instruction.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911294836.6A CN110988462A (en) | 2019-12-16 | 2019-12-16 | Electricity-taking switch and electric quantity measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911294836.6A CN110988462A (en) | 2019-12-16 | 2019-12-16 | Electricity-taking switch and electric quantity measuring method |
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Application publication date: 20200410 |