Disclosure of Invention
In view of this, the present invention provides a method and an apparatus for processing a broadband power carrier, so as to solve the technical problem in the prior art that the control accuracy is low when a smart appliance is controlled based on the operation state of a power grid.
In a first aspect, an embodiment of the present invention provides a broadband power carrier processing apparatus, including: a circuit processing module, a broadband power carrier communication module and an information management module, wherein,
the circuit processing module is connected with the broadband power carrier communication module and used for counting and recording the power utilization information of the current user based on the power signals transmitted by the power line in the target power grid and separating the power signals to obtain broadband power carrier signals;
the broadband power carrier communication module is connected with the information management module and used for acquiring the broadband power carrier signal and the electricity utilization information, transmitting the acquired broadband power carrier signal to the information management module and sending the electricity utilization information to an electricity meter management department for storage and recording;
the information management module is used for generating a control signal based on the received broadband power carrier signal so as to control a first operation parameter of a target electrical device according to the control signal, wherein the first operation parameter comprises at least one of the following parameters: running information and running state.
Further, the information management module is further configured to obtain a second operating parameter of the target electrical device, and transmit the second operating parameter to the broadband power carrier communication module;
the broadband power carrier communication module is also used for converting the acquired operation information into corresponding carrier signals and transmitting the corresponding carrier signals to the circuit processing module;
the circuit processing module is also used for superposing the corresponding carrier signal to the power line so as to transmit the corresponding carrier signal to an electric meter management department through the power line.
Further, the coupling circuit module is configured to separate the broadband power carrier signal from the power signal; or
The coupling circuit module is used for superposing the corresponding carrier signal to the power line so as to transmit the corresponding carrier signal to an electric meter management department through the power line.
Further, the coupling circuit is used for realizing the separation of the broadband power carrier signals and the superposition of the corresponding carrier signals;
the BPF filter filters out interference signals from the broadband power carrier signal and transmits the filtered broadband power carrier signal to the broadband power carrier communication module;
the amplifier is used for amplifying the corresponding carrier signal and transmitting the amplified corresponding carrier signal to the coupling circuit.
Furthermore, the conversion circuit module is used for being connected with a power line, converting alternating current into direct current, supplying power to the broadband power carrier processing device, counting power consumption information of the current user and performing power supply management on each component in the broadband power carrier processing device.
Further, the conversion circuit is connected to the power line, and is configured to convert the ac power transmitted through the power line into dc power, determine the power consumption information based on the dc power, and supply power to the broadband power carrier processing apparatus based on the dc power;
and the power supply management module is used for carrying out power supply management on each part in the broadband power carrier processing device.
Further, the resource management module is configured to obtain the second operation parameter and the load information of the target power grid, and form the control signal according to the second operation parameter and the load information of the target power grid;
and the power utilization management module is used for receiving the control signal so as to carry out resource scheduling management on the target electrical equipment according to the control signal.
Further, the apparatus further comprises a plurality of interfaces, wherein the plurality of interfaces are configured to implement at least one of the following connections: the circuit processing module is connected with the power line, and the information management module is connected with the target electrical equipment.
Further, the plurality of interfaces includes: a first interface and a second interface, wherein,
the first interface is used for realizing the connection between the circuit processing module and the power line;
the second interface is used for realizing the connection between the information management module and the target electrical equipment.
In a second aspect, an embodiment of the present invention provides a method for processing a broadband power carrier, including: counting and recording the electricity utilization information of a current user based on an electric power signal transmitted by a power line in a target power grid, and separating the electric power signal to obtain a broadband electric power carrier signal; generating a control signal based on the received broadband power carrier signal to control operation information of a target electrical device according to the control signal, wherein the operation information includes at least one of: running information and running state.
The invention provides a broadband power carrier processing device, which comprises: the system comprises a circuit processing module, a broadband power carrier communication module and an information management module, wherein the circuit processing module is connected with the broadband power carrier communication module and is used for counting the power utilization information of a current user by a power signal transmitted by a power line in a power grid and separating the power signal to obtain a broadband power carrier signal; the broadband power carrier communication module is connected with the information management module and used for acquiring broadband power carrier signals and power utilization information, transmitting the acquired broadband power carrier signals to the information management module and sending the power utilization information to the electricity meter management department; the information management module is used for generating a control signal based on the received broadband power carrier signal and controlling the running information and the running state of the target electrical equipment according to the control signal. In the embodiment of the invention, a novel interactive broadband power carrier processing device with broadband internet access and remote meter reading functions is designed, and the device can tightly connect the intelligent electrical appliances in a family with a power grid, so that the power utilization scheduling efficiency of the whole power grid is improved, and the load balancing capability of the power grid is improved. The invention solves the technical problem of low control precision when the intelligent electrical appliance is controlled based on the running state of the power grid in the prior art.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. 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 invention.
The first embodiment is as follows:
fig. 1 is a schematic diagram of a wideband power carrier processing apparatus according to an embodiment of the present invention, and as shown in fig. 1, the wideband power carrier processing apparatus includes: a circuit processing module 10, a broadband power carrier communication module 20, and an information management module 30, wherein,
specifically, as shown in fig. 1, in the embodiment of the present invention, the circuit processing module 10 is connected to the broadband power carrier communication module 20, and is configured to count and record power consumption information of a current user based on a power signal transmitted by a power line in a target power grid, and separate a broadband power carrier signal from the power signal.
The broadband power carrier communication module 20 is connected to the information management module 30, and is configured to acquire the broadband power carrier signal and the power consumption information, transmit the acquired broadband power carrier signal to the information management module 30, and send the power consumption information to a power meter management department for storage and recording.
The information management module 30 is configured to generate a control signal based on the received broadband power carrier signal to control a first operating parameter of a target electrical device according to the control signal, where the first operating parameter includes at least one of: running information and running state.
In the embodiment of the invention, a novel interactive broadband power carrier processing device with broadband internet access and remote meter reading functions is designed, and the device can tightly connect the intelligent electrical appliances in a family with a power grid, so that the power utilization scheduling efficiency of the whole power grid is improved, and the load balancing capability of the power grid is improved. The invention solves the technical problem of low control precision when the intelligent electrical appliance is controlled based on the running state of the power grid in the prior art.
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
In another optional implementation manner of the embodiment of the present invention, the information management module 30 is further configured to obtain a second operation parameter of the target electrical device, and transmit the second operation parameter to the broadband power carrier communication module;
the broadband power carrier communication module 20 is further configured to convert the acquired operation information into a corresponding carrier signal, and transmit the corresponding carrier signal to the circuit processing module;
the circuit processing module 10 is further configured to superimpose the corresponding carrier signal onto the power line for transmission to an electric meter management department via the power line.
In the embodiment of the present invention, the wideband power line carrier communication module 20 includes a wideband power line carrier communication chip, wherein the wideband power line carrier communication module and a high performance application processing core, such as hitachi Hi3911, are integrated in the wideband power line carrier communication chip. The broadband power carrier communication chip supports the national network broadband power carrier interconnection standard and south network and Guangdong protocol, and is forward compatible with Hi3911V1 series chips. And the system supports the ITU G.9972ISP protocol, and can coexist with power line carrier equipment conforming to the ITU G.hn standard. The integrated high-performance ARM926EJ-S processor provides rich peripheral interfaces such as MII, SPI, UART, I2C, PWM, GPIO and the like; one path of AD analog input is supported, and the centralized meter reading field supports the identification of the user variable relationship (namely the attribution judgment of the transformer in the transformer area and the user electric meter). The broadband power carrier communication chip is used for carrying an open source operating system LiteOS of the Internet of things, provides a more open development environment, faster and safer system operation and similar chips of Dongsofu and Lily microelectronics. The chip is an important part of the module, which realizes the transmission of information on the power line medium.
That is to say, in the embodiment of the present invention, the circuit processing module, the broadband power carrier communication module 20, and the information management module 30 form a closed-loop broadband power carrier processing apparatus, and the broadband power carrier processing apparatus is applied to connection between the smart electrical appliance and the power grid to implement closed-loop control, so as to improve the accuracy and real-time performance of control, balance the load of the power grid, and further improve the efficiency of the power grid.
In an alternative implementation of the embodiment of the present invention, as shown in fig. 2, the circuit processing module 10 includes a coupling circuit module 11 and a conversion circuit module 12.
The coupling circuit module is used for separating the broadband power carrier signal from the power signal; or the coupling circuit module is used for superposing the corresponding carrier signal to the power line so as to transmit the corresponding carrier signal to an electric meter management department through the power line.
Further, as shown in fig. 2, the coupling circuit module further includes: a coupling circuit 111, a BPF filter 112 and an amplifier 113.
The coupling circuit 111, which has a structure as shown in fig. 3, is configured to separate the wideband power carrier signals and superimpose the corresponding carrier signals.
In the embodiment of the invention, the coupling circuit is directly connected with a power line in a power grid and is used for realizing the functions of superposition and separation of a power signal and a broadband power carrier signal in the power grid, namely how to superpose and separate a small signal of a carrier on a large signal of the power line. The separation is the above-described separation of the broadband power carrier signals, and the superposition is the superposition of the corresponding carrier signals.
The circuit mainly functions to superpose and separate a carrier signal (small signal) and a power signal (large signal). It should have the following 3 characteristics:
(1) the open network structure of a low-voltage power network and the dynamically variable network characteristics thereof can be adapted, high-frequency signals are transmitted with low insertion loss, and meanwhile, 50Hz power frequency current of a power line is prevented from entering a communication terminal;
(2) providing a sufficiently wide bandwidth, as well as good impedance characteristics and less operational attenuation;
(3) the transient protection circuit with reasonable design can inhibit transient phenomenon. As shown in fig. 3, is a schematic diagram of the coupling circuit.
As shown in fig. 4, one end of the high-frequency capacitor COO is connected to the low-voltage power line, and the other end is connected to the coupling transformer. COO adopts a high-voltage capacitor, and the withstand voltage value of the capacitor is larger than 275V. COO is used for coupling high-frequency carrier signals on one hand and plays a role in isolating high-voltage power frequency 50Hz on the other hand, and a coupling capacitor COO is selected from 0.0047 uF.
The coupling transformer TOO not only has an isolation function, but also realizes the transformation of the balance and unbalance of the signal wire and the transformation of the impedance thereof. The primary coil of the TOO and the COO form a high-pass filter circuit, so that the power frequency current of 50Hz is prevented, the low-frequency power line voltage signal is weakened as much as possible, and the attenuation low-frequency noise and interference signals are reduced; meanwhile, the high-frequency signal is ensured to pass through, and the minimum attenuation and linear amplitude-frequency and phase-frequency characteristics are provided for the high-frequency signal.
The common power transformer can only realize signal coupling in the order of tens of Hz to 105 Hz. The main factors limiting the operating bandwidth of a transformer are leakage inductance and distributed capacitance between the coil windings. Because the coupling of high-frequency band signals of 2-12MHz needs to be realized, the transformer TOO in the design adopts a transmission line transformer to widen the working frequency band of the transformer and improve the response characteristic, thereby meeting the coupling requirement of high-frequency broadband carrier signals. The TOO uses a toroidal nickel-zinc ferrite as a core, with an input impedance of 50 Ω and a primary coil inductance of about 10 uH.
In this circuit, J00 is directly connected to 220V AC. To prevent over-voltage on the grid, a voltage dependent resistor MOV00 is selected as a voltage protection element to sense and limit transient voltage surges. The resistance of the MOV00 is non-linear and decreases as the voltage magnitude increases. Under the condition of normal voltage, the leakage current is only dozens of uA, and the influence on the circuit is small. When the voltage exceeds the rating of MOV00, the resistance state of MOV00 changes, providing a low resistance path for transients, with a large current flow. Because the voltage across the piezoresistor is suppressed, other elements in the circuit are protected. When the transient voltage pulse disappears, the piezoresistor returns to the high-resistance state. When power is removed, R00 and R0l serve to dissipate the charge that still collects across the COO.
The BPF filter 112 is configured to filter an interference signal from the broadband power carrier signal, and transmit the filtered broadband power carrier signal to the broadband power carrier communication module 20.
In the embodiment of the present invention, the BPF filter 112 is a band-pass filter, and mainly filters interference signals outside a bandwidth of 2-12MHz to improve the quality of a broadband power carrier signal, and sends the filtered signal to a chip for processing.
The amplifier 113 is configured to amplify the corresponding carrier signal and transmit the amplified corresponding carrier signal to the coupling circuit 111;
wherein the bandwidth of the amplifier 113 is in the range of 2-12 MHz.
In the embodiment of the present invention, the conversion circuit module 12 is configured to be connected to a power line, and is configured to convert ac power into dc power, supply power to the broadband power carrier processing apparatus, count power consumption information of the current user, and manage power supply to each component in the broadband power carrier processing apparatus.
The conversion circuit module 12 further includes: a conversion circuit 121 and a power management module 122.
The conversion circuit 121 is connected to the power line, and is configured to convert ac power transmitted through the power line into dc power, determine the power consumption information based on the dc power, and supply power to the broadband power carrier processing apparatus based on the dc power.
In the embodiment of the invention, the conversion circuit is directly connected with the power line and is used for realizing the transformation conversion from alternating current to direct current, measuring electric quantity (namely measuring electric quantity information), supplying the direct current to the power management module, and sending the electric quantity measurement result to the broadband power carrier communication chip for processing.
The power management module 122 is configured to perform power supply management on each component in the broadband power carrier processing apparatus.
In the embodiment of the present invention, the power management module 122 mainly performs management of dc power supply inside the module, including power supply management of the amplifier, the broadband power carrier communication chip, the resource scheduling management module, and the power consumption management module.
In an optional implementation manner of the embodiment of the present invention, as shown in fig. 2, the information management module 30 includes: a resource management scheduling module 31 and a power utilization management module 32.
The resource management scheduling module 31 is configured to obtain the second operation parameter and the load information of the target power grid, and form the control signal according to the second operation parameter and the load information of the target power grid.
In the embodiment of the present invention, the resource management scheduling module 31 is a management unit of the embodiment of the present invention, and is configured to summarize access and power consumption conditions of each smart appliance, and send various control instructions to the smart appliances, such as an air conditioner switch and temperature instruction, a refrigerator temperature instruction, and the like, in combination with the entire grid load condition fed back by the chip.
The resource management scheduling module 31 has two inputs, one is state information of the intelligent electrical appliance, and the other is load information of the power grid, and performs resource scheduling management according to the two inputs. In the resource management scheduling module 31, the resources to be scheduled and managed mainly have time, power, and the like, and specifically, the air conditioner temperature can be adjusted to be high or temporarily turned off at a peak, the refrigerator temperature can be adjusted to be high, the electric vehicle can be charged at a peak, and the like. Therefore, the load of the power grid is balanced, and the cost of the user can be reduced. Because the whole is positioned in a closed system of the power grid, information interaction with other systems is not needed, the timeliness of the information can be improved, and the safety of the user information is ensured.
Further, a specific work flow of the resource management scheduling module 31 is shown in fig. 5, and the resources scheduled and managed by the resource management scheduling module 31 are mainly the working time and power of the electrical equipment, so as to balance the load of the power grid and reduce the cost of the user.
The resource management scheduling module 31 has the following work flow:
step S501, reading state information of a data intelligent electric appliance and load information of a power grid;
step S502, judging whether the load information of the power grid is a peak or not based on the read load information of the power grid; if yes, executing step S503, and if no, executing step S504;
step S503, detecting load information of the power grid; detecting power utilization information of the intelligent electrical appliance based on the state of the intelligent electrical appliance;
step S504, the intelligent electric appliance maintains the existing working state or adjusts the electricity consumption of the intelligent electric appliance to a default value according to the setting;
step S505, judging whether the load information of the power grid exceeds a threshold value or not based on the detection in the step S503, wherein if yes, the step S506 is executed, and if no, the step S504 is executed;
step S506, adjusting the state of the intelligent electric appliance, wherein the state comprises the steps of adjusting the temperature of an air conditioner to be high in the peak hour or temporarily closing the air conditioner, adjusting the temperature of a refrigerator to be high, and the like, and charging the electric vehicle in the peak hour staggered mode;
and step S507, determining the time for the intelligent electric appliance to start to work again according to the set time delay waiting preset time.
The power utilization management module 32 is configured to receive the control signal, and perform resource scheduling management on the target electrical device according to the control signal.
The power consumption management module 32 is mainly used for managing access, state and power consumption of the intelligent electrical appliances, can externally control each intelligent electrical appliance, and reports information to the resource scheduling management module for overall decision making, wherein the information is an execution unit rather than a decision making unit.
The module is connected with all intelligent electrical appliances in a matching mode through Bluetooth, WIFI or SubG and the like, acquires the state information of the electrical appliances, and receives the command of the management module to control each electrical appliance. The modules are execution units and access units, which themselves do not form a decision.
Different from other wireless access modes, the intelligent electric appliance and the intelligent power grid form a closed system of a self-forming system, and the state information can be acquired and fed back more timely and effectively.
In an optional implementation manner of the embodiment of the present invention, the broadband power carrier processing apparatus further includes a plurality of interfaces, where the plurality of interfaces are configured to implement at least one of the following connections: the circuit processing module is connected with the power line, and the information management module is connected with the target electrical equipment.
Further, in the embodiment of the present invention, the number of the plurality of interfaces is 3, wherein the number of the first interfaces is 2, and the first interfaces are respectively used for connection between the power line and the coupling circuit and connection between the power line and the conversion circuit; the 2 first interfaces are also referred to as a coupling circuit interface and a conversion circuit interface, respectively.
The number of the second interfaces is 1, which are used for connecting the electricity management module and the electrical device, wherein the second interfaces may also be referred to as wireless interfaces.
It should be noted that, in the embodiment of the present invention, the number of the plurality of interfaces is preferably 3, but in the embodiment of the present invention, the number of the plurality of interfaces is not limited to 3, and the number of the interfaces may be increased or decreased according to actual needs, so that the broadband power carrier processing apparatus better meets user habits and actual use requirements.
Example two:
fig. 6 is a flowchart of a method for processing a broadband power carrier according to an embodiment of the present invention, as shown in fig. 6, the method includes the following steps:
step S602, counting and recording the electricity utilization information of the current user based on the power signal transmitted by the power line in the target power grid, and separating the electricity signal to obtain a broadband power carrier signal;
step S604, generating a control signal based on the received broadband power carrier signal, so as to control operation information of the target electrical equipment according to the control signal, wherein the operation information includes at least one of the following: running information and running state.
In the embodiment of the invention, a novel interactive broadband power carrier processing device with broadband internet access and remote meter reading functions is designed, and the device can tightly connect the intelligent electrical appliances in a family with a power grid, so that the power utilization scheduling efficiency of the whole power grid is improved, and the load balancing capability of the power grid is improved. The invention solves the technical problem of low control precision when the intelligent electrical appliance is controlled based on the running state of the power grid in the prior art.
It should be noted that the wideband power carrier method is the same as the working flow of the wideband power carrier processing apparatus described in the first embodiment, and is not described herein again.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a non-volatile computer-readable storage medium executable by a processor. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.