阅读说明：本技术 电力载波放大电路和电力系统 (Power carrier amplifying circuit and power system ) 是由 沈緐 杨克 万彩红 熊忠 卢燕 王飞 于 2021-08-31 设计创作，主要内容包括：本申请实施例提供了一种电力载波放大电路和电力系统,涉及电力载波技术领域,包括载波放大器、电能储存器、电流监控器、信号控制开关及控制器。电能储存器的输出端与信号控制开关的输入端电连接,信号控制开关的输出端与载波放大器的输入端电连接,信号控制开关的控制端与控制器电连接。电流监控器的一端与载波放大器的输出端电连接、另一端与控制器电连接。利用电流监控器采集载波放大器的电流值,当控制器确定电流值小于预设阈值时,则发送控制信号至信号控制开关,使得电能储能器为载波放大器充电,改善了由于提供功率不足或供电不足使得载波放大器的载波信号不能完整地发送到电力线上,从而造成通信失败的问题。(The embodiment of the application provides a power carrier amplifying circuit and a power system, which relate to the technical field of power carriers and comprise a carrier amplifier, an electric energy storage, a current monitor, a signal control switch and a controller. The output end of the electric energy storage is electrically connected with the input end of the signal control switch, the output end of the signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of the signal control switch is electrically connected with the controller. One end of the current monitor is electrically connected with the output end of the carrier amplifier, and the other end of the current monitor is electrically connected with the controller. The current monitor is used for collecting the current value of the carrier amplifier, when the controller determines that the current value is smaller than the preset threshold value, the control signal is sent to the signal control switch, so that the electric energy accumulator charges the carrier amplifier, and the problem that the carrier signal of the carrier amplifier cannot be completely sent to a power line due to insufficient power supply or insufficient power supply, and communication failure is caused is solved.)

1. A power carrier amplifying circuit is characterized by comprising a carrier amplifier, an electric energy storage, a current monitor, a signal control switch and a controller;

the output end of the electric energy storage is electrically connected with the input end of the signal control switch, the output end of the signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of the signal control switch is electrically connected with the controller;

one end of the current monitor is electrically connected with the output end of the carrier amplifier, and the other end of the current monitor is electrically connected with the controller;

the electric energy storage is used for storing electric energy;

the current monitor is used for collecting a current value of the output end of the carrier amplifier and sending the current value to the controller;

the controller is used for judging whether the current value is smaller than a preset threshold value or not, and sending a control instruction to the signal control switch when the current value is smaller than the preset threshold value;

and the signal control switch is used for controlling the electric energy storage to discharge and providing electric energy for the carrier amplifier under the condition of receiving the control instruction.

2. The power carrier amplification circuit of claim 1 further comprising a charge controller and a power supply;

one end of the charging controller is electrically connected with the power supply, and the other end of the charging controller is electrically connected with the electric energy storage;

the power supply is used for charging the electric energy storage;

the charging controller is used for monitoring whether the electric quantity stored in the electric energy storage device is full, and the connection with the power supply is disconnected after the electric quantity is full, so that the electric energy storage device is stopped to be charged.

3. The power carrier amplification circuit of claim 2 further comprising a charge monitor;

one end of the electric quantity monitor is electrically connected with the electric energy storage, the other end of the electric quantity monitor is electrically connected with the controller, and the charging controller is also electrically connected with the controller;

the electric quantity monitor is used for acquiring electric quantity condition information in the electric energy storage and sending the electric quantity condition information to the controller, and the electric quantity condition information represents the size of electric quantity;

the controller is used for judging whether the electric quantity stored in the electric energy storage device is smaller than a preset electric quantity or not according to the electric quantity condition information, and if the electric quantity stored in the electric energy storage device is smaller than the preset electric quantity, sending a charging instruction to the charging controller;

the charging controller is used for switching on the connection with the power supply under the condition of receiving the charging instruction, so that the power supply charges the electric energy storage.

4. The power carrier amplification circuit of claim 3 wherein the electrical energy storage comprises a plurality of sub-electrical energy storage, and the signal control switch comprises a plurality of sub-signal control switches;

each sub electric energy storage is connected in parallel, and the output end of each sub electric energy storage is electrically connected with the input end of one sub signal control switch;

the output end of each sub-signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of each sub-signal control switch is electrically connected with the controller;

the controller is further configured to determine whether the current value is smaller than the preset threshold, and send a control instruction to any one or more target sub-signal control switches when determining that the current value of the carrier amplifier is smaller than the preset threshold;

each target sub-signal control switch is used for controlling a sub-electric energy storage electrically connected with the target sub-signal control switch to discharge under the condition of receiving the control instruction, so as to provide electric energy for the carrier amplifier.

5. The power carrier amplification circuit of claim 4 wherein the charge monitor comprises a plurality of sub-charge monitors;

one end of each sub-electric quantity monitor is electrically connected with each sub-electric energy storage, and the other end of each sub-electric quantity monitor is electrically connected with the controller;

each sub-electric quantity monitor is used for acquiring electric quantity condition information in a sub-electric energy storage electrically connected with the sub-electric quantity monitor and sending the electric quantity condition information to the controller, and the electric quantity condition information represents the electric quantity;

the controller is further used for sending a control instruction to any one or more target sub-signal control switches according to the electric quantity condition information when the current value of the carrier amplifier is determined to be smaller than the preset threshold value;

each target sub-signal control switch is used for controlling a sub-electric energy storage electrically connected with the target sub-signal control switch to discharge under the condition of receiving the control instruction, so as to provide electric energy for the carrier amplifier.

6. A power carrier amplification circuit according to any one of claims 1 to 5 wherein the controller is a microcontroller, a programmable logic controller or a field programmable gate array.

7. A power carrier amplification circuit according to any one of claims 1 to 5 wherein the electrical energy store comprises a super capacitor.

8. A power system comprising the power carrier amplification circuit of any one of claims 1-7.

9. The power system of claim 8, further comprising a smart meter coupled to the power carrier amplification circuit via a power line;

the power carrier amplifying circuit sends a carrier signal to the intelligent electric meter so that the intelligent electric meter operates based on the carrier signal.

10. The power system of claim 9, further comprising a power load coupled to the smart meter, the smart meter configured to collect power usage of the power load.

Technical Field

The application relates to the technical field of power carrier waves, in particular to a power carrier wave amplifying circuit and a power system.

Background

The carrier modules of the intelligent electric meter are key components of a power carrier communication system, are end nodes and communication relay nodes of the power carrier communication system, and the communication quality of the carrier modules determines the communication quality of the whole communication system due to the huge number of the carrier modules, so that the design of the carrier modules is very important.

The power of carrier module is provided by smart electric meter, and smart electric meter provides 5V and 12V's power for carrier module in succession through connecting pin, because receive power's restriction, when carrier module sends low frequency carrier signal, often because smart electric meter provides that power is not enough to make carrier signal can not send the power line completely on to cause communication failure, perhaps appear because of the not enough problem that smart electric meter resets that appears of supplying power.

Disclosure of Invention

In view of the above, the present application provides a power carrier amplifying circuit and a power system to improve the above problems.

In a first aspect, the present application provides a power carrier amplifying circuit, including a carrier amplifier, an electric energy storage, a current monitor, a signal control switch, and a controller;

the output end of the electric energy storage is electrically connected with the input end of the signal control switch, the output end of the signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of the signal control switch is electrically connected with the controller;

one end of the current monitor is electrically connected with the output end of the carrier amplifier, and the other end of the current monitor is electrically connected with the controller;

the electric energy storage is used for storing electric energy;

the current monitor is used for collecting a current value of the output end of the carrier amplifier and sending the current value to the controller;

the controller is used for judging whether the current value is smaller than a preset threshold value or not, and sending a control instruction to the signal control switch when the current value is smaller than the preset threshold value;

and the signal control switch is used for controlling the electric energy storage to discharge and providing electric energy for the carrier amplifier under the condition of receiving the control instruction.

In an optional embodiment, the power carrier amplifying circuit further includes a charging controller and a power supply;

one end of the charging controller is electrically connected with the power supply, and the other end of the charging controller is electrically connected with the electric energy storage;

the power supply is used for charging the electric energy storage;

the charging controller is used for monitoring whether the electric quantity stored in the electric energy storage device is full, and the connection with the power supply is disconnected after the electric quantity is full, so that the electric energy storage device is stopped to be charged.

In an optional embodiment, the power carrier amplifying circuit further comprises a charge monitor;

one end of the electric quantity monitor is electrically connected with the electric energy storage, the other end of the electric quantity monitor is electrically connected with the controller, and the charging controller is also electrically connected with the controller;

the electric quantity monitor is used for acquiring electric quantity condition information in the electric energy storage and sending the electric quantity condition information to the controller, and the electric quantity condition information represents the size of electric quantity;

the controller is used for judging whether the electric quantity stored in the electric energy storage device is smaller than a preset electric quantity or not according to the electric quantity condition information, and if the electric quantity stored in the electric energy storage device is smaller than the preset electric quantity, sending a charging instruction to the charging controller;

the charging controller is used for switching on the connection with the power supply under the condition of receiving the charging instruction, so that the power supply charges the electric energy storage.

In an alternative embodiment, the electrical energy storage device comprises a plurality of sub-electrical energy storage devices, and the signal control switch comprises a plurality of sub-signal control switches;

each sub electric energy storage is connected in parallel, and the output end of each sub electric energy storage is electrically connected with the input end of one sub signal control switch;

the output end of each sub-signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of each sub-signal control switch is electrically connected with the controller;

the controller is further configured to determine whether the current value is smaller than the preset threshold, and send a control instruction to any one or more target sub-signal control switches when determining that the current value of the carrier amplifier is smaller than the preset threshold;

each target sub-signal control switch is used for controlling a sub-electric energy storage electrically connected with the target sub-signal control switch to discharge under the condition of receiving the control instruction, so as to provide electric energy for the carrier amplifier.

In an alternative embodiment, the charge monitor comprises a plurality of sub-charge monitors;

one end of each sub-electric quantity monitor is electrically connected with each sub-electric energy storage, and the other end of each sub-electric quantity monitor is electrically connected with the controller;

each sub-electric quantity monitor is used for acquiring electric quantity condition information in a sub-electric energy storage electrically connected with the sub-electric quantity monitor and sending the electric quantity condition information to the controller, and the electric quantity condition information represents the electric quantity;

the controller is further used for sending a control instruction to any one or more target sub-signal control switches according to the electric quantity condition information when the current value of the carrier amplifier is determined to be smaller than the preset threshold value;

each target sub-signal control switch is used for controlling a sub-electric energy storage electrically connected with the target sub-signal control switch to discharge under the condition of receiving the control instruction, so as to provide electric energy for the carrier amplifier.

In an alternative embodiment, the controller is a microcontroller, a programmable logic controller, or a field programmable gate array.

In an alternative embodiment, the electrical energy storage comprises a super capacitor.

In a second aspect, the present application provides a power system comprising the power carrier amplifying circuit according to any one of the previous embodiments.

In an optional embodiment, the power system further comprises a smart meter, and the smart meter is connected with the power carrier amplifying circuit through a power line;

the power carrier amplifying circuit sends a carrier signal to the intelligent electric meter so that the intelligent electric meter operates based on the carrier signal.

In an optional embodiment, the power system further includes an electricity load, the electricity load is connected to the smart meter, and the smart meter is configured to collect electricity consumption of the electricity load.

The embodiment of the application provides a power carrier amplifying circuit and a power system, and the power carrier amplifying circuit comprises a carrier amplifier, an electric energy storage, a current monitor, a signal control switch and a controller. The output end of the electric energy storage is electrically connected with the input end of the signal control switch, the output end of the signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of the signal control switch is electrically connected with the controller. One end of the current monitor is electrically connected with the output end of the carrier amplifier, and the other end of the current monitor is electrically connected with the controller. The electric energy storage is used for storing electric energy; the current monitor is used for collecting the current value of the output end of the carrier amplifier and sending the current value to the controller. The controller is used for judging whether the current value is smaller than a preset threshold value or not, and sending a control instruction to the signal control switch when the current value is smaller than the preset threshold value. The signal control switch is used for controlling the electric energy storage to discharge under the condition of receiving the control instruction, so that electric energy is provided for the carrier amplifier, and the problem that the carrier signal of the carrier amplifier cannot be completely transmitted to a power line due to insufficient power supply or insufficient power supply, so that communication failure is caused is solved.

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, several embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

Fig. 1 is a schematic diagram of functional modules of a power carrier amplifying circuit according to an embodiment of the present disclosure.

Fig. 2 is a second functional block diagram of a power carrier amplifying circuit according to the embodiment of the present disclosure.

Fig. 3 is a third schematic diagram of functional modules of the power carrier amplifying circuit according to the embodiment of the present disclosure.

Fig. 4 is a fourth functional block diagram of a power carrier amplifying circuit according to an embodiment of the present disclosure.

Icon: 1-a power carrier amplifying circuit; 10-a carrier amplifier; 20-an electrical energy storage; 21-a sub-electrical energy storage; 30-a current monitor; 40-signal control switch; 41-sub-signal control switch; 50-a controller; 60-a charge controller; 70-a power supply; 80-electric quantity monitor; 81-sub-electric quantity monitor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the application usually place when in use, and are used only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the devices or elements being referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

The power carrier communication is one of key technologies of the smart grid and is widely applied to intelligent power distribution and utilization, and a power carrier system occupies a large share in the current automatic meter reading system and also occupies a considerable market in a high-level measurement system in the near future. As introduced in the background art, the smart meter carrier module is a key component of the power carrier communication system, and is a terminal node and a communication relay node of the communication system, and the number of the carrier modules is huge, and the communication quality of the carrier modules determines the communication quality of the communication system, so the design of the carrier modules is very important.

The power of carrier module is provided by smart electric meter, and smart electric meter provides 5V and 12V's power for carrier module in succession through connecting pin, because receive power's restriction, when carrier module sends low frequency carrier signal, often because smart electric meter provides that power is not enough to make carrier signal can not send the power line completely on to cause communication failure, perhaps appear because of the not enough problem that smart electric meter resets that appears of supplying power.

In view of this, the embodiment of the present application provides a power carrier amplifying circuit and a power system, in which an electric energy storage, a current monitor, a signal control switch and a controller are added in a circuit where a carrier amplifier is located, the current monitor is used to collect a current value of the carrier amplifier, and when the controller determines that the current value is smaller than a preset threshold, a control signal is sent to the signal control switch, so that the electric energy storage charges the carrier amplifier, thereby solving a problem that a carrier signal of the carrier amplifier cannot be completely sent to a power line due to insufficient power supply or insufficient power supply, and thus communication failure is caused.

It should be noted that the above prior art solutions have drawbacks that are the results of practical and careful study by the applicant, and therefore, the discovery process of the above problems and the solutions proposed by the following embodiments of the present application for the above problems should be the contributions of the applicant to the present application in the course of the present application.

The above scheme is explained in detail below.

Referring to fig. 1, fig. 1 is a schematic diagram of a functional module of a power carrier amplifying circuit 1 according to an embodiment of the present disclosure.

The present application provides a power carrier amplifying circuit 1, which includes a carrier amplifier 10, an electric energy storage 20, a current monitor 30, a signal control switch 40 and a controller 50.

The output end of the electric energy storage 20 is electrically connected with the input end of the signal control switch 40, the output end of the signal control switch 40 is electrically connected with the input end of the carrier amplifier 10, and the control end of the signal control switch 40 is electrically connected with the controller 50.

One end of the current monitor 30 is electrically connected to the output terminal of the carrier amplifier 10, and the other end is electrically connected to the controller 50.

The electrical energy storage 20 is used to store electrical energy. The electrical energy storage 20 may be a super capacitor or a common battery. The super capacitor is also called electrochemical capacitor, double electric layer capacitor, gold capacitor and farad capacitor, is different from traditional chemical power source, is a power source with special performance between traditional capacitor and battery, and stores electric energy mainly by electric double layer and redox pseudo capacitor. But no chemical reaction occurs in the process of energy storage, and the energy storage process is reversible, and the super capacitor can be repeatedly charged and discharged for tens of thousands of times.

The current monitor 30 is used for collecting a current value at the output terminal of the carrier amplifier 10 and sending the current value to the controller 50.

The controller 50 is configured to determine whether the current value is smaller than a preset threshold, and send a control command to the signal control switch 40 when the current value is smaller than the preset threshold.

The signal control switch 40 is used for controlling the electric energy storage 20 to discharge and supply electric energy to the carrier amplifier 10 under the condition of receiving a control instruction.

Alternatively, the controller 50 may be an integrated circuit chip having signal processing capabilities. The controller 50 may be a general-purpose Processor including a Central Processing Unit (CPU), a Network Processor (NP), and the like.

But may also be a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware components. The various methods, steps, and logic blocks disclosed in the embodiments of the present application may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.

Illustratively, the current value of the output end of the carrier amplifier 10 collected by the current monitor 30 is a ampere, the preset threshold value is B ampere, if a > B, it indicates that the voltage of the carrier amplifier 10 is in a normal range at this time, the voltage supplied to the carrier amplifier 10 is sufficient, and the carrier amplifier 10 can normally send the carrier signal to the power line.

If a < B, it indicates that the voltage of the carrier amplifier 10 is in an abnormal range at this time, the voltage supplied to the carrier amplifier 10 is insufficient, and the carrier amplifier 10 may not normally transmit the carrier signal to the power line for information transmission, so that it is necessary to supplement the voltage to the carrier amplifier 10 so that the voltage of the carrier amplifier 10 is in a normal range. To achieve this function, in the embodiment of the present application, the controller 50 sends a control command to the signal control switch 40, so that the control switch is closed, and the power storage 20 communicates with the carrier amplifier 10 to supply power to the carrier amplifier 10.

Therefore, in the embodiment of the present application, the current monitor 30 is used to collect the current value of the carrier amplifier 10, and when the controller 50 determines that the current value is smaller than the preset threshold, the signal is controlled to control the switch 40, so that the electric energy accumulator charges the carrier amplifier 10, thereby solving the problem that the carrier signal of the carrier amplifier 10 cannot be completely transmitted to the power line due to insufficient power supply or insufficient power supply, thereby causing communication failure.

In some cases, when the carrier amplifier 10 needs to be recharged, the power in the power storage 20 may be exhausted, at which time the operator may replace the new power storage to continue to provide power to the carrier amplifier 10. However, this method is too troublesome, and requires regular maintenance by the operator, and if the operator forgets to replace the new electric energy storage in time, the voltage of the carrier amplifier 10 is still insufficient, which causes a problem of carrier communication failure.

Based on this, the embodiment of the present application further provides a method for automatically charging an electric energy storage, and the principle and implementation of the method for automatically charging are explained in detail below. Referring to fig. 2, fig. 2 is a second schematic diagram of functional modules of the power carrier amplifying circuit 1 according to the embodiment of the present disclosure.

The power carrier amplifying circuit 1 further includes a charge controller 60 and a power supply 70.

The charge controller 60 has one end electrically connected to the power source 70 and the other end electrically connected to the electric energy storage 20.

The power supply 70 is used to charge the electrical energy storage 20.

The charge controller 60 is configured to monitor whether the electric energy storage 20 is fully charged, and disconnect the power supply 70 after the full charge to stop charging the electric energy storage 20.

The power supply 70 may be a power supply 70 for domestic electricity or a power supply 70 for industrial electricity, and the charge controller 60 steps down a standard voltage of the power supply 70 on the one hand so that the voltage is adapted to a charging voltage of the electric energy storage. For example, the standard voltage 220V of the power supply 70 is converted into 12V or 5V. On the other hand, the charging controller 60 may also disconnect the connection between the electric energy storage 20 and the power supply 70 when monitoring that the electric quantity stored in the computer memory is full, so as to prevent the electric energy storage 20 from aging in advance due to overcharge, reduce the service life, and ensure the safety of the electric energy storage 20.

In this way, when the electric energy in the electric energy storage 20 is used up, the electric energy is automatically supplied to the electric energy storage 20 through the power supply 70 and the charge controller 60 without a worker replacing a new electric energy storage, so that the electric energy can be stably supplied to the carrier amplifier 10, and the stability of the carrier communication is improved.

On the basis of the schematic diagram of the power carrier amplifying circuit 1 shown in fig. 2, in order to further know the electric quantity in the electric energy storage, the embodiment of the present application further provides a quantity monitor, which monitors the electric quantity in the electric energy storage 20, so as to charge the electric energy storage 20 when the electric quantity of the electric energy storage 20 is insufficient, and the following explains the implementation principle in detail:

referring to fig. 3, fig. 3 is a third schematic diagram of functional modules of the power carrier amplifying circuit 1 according to the embodiment of the present disclosure.

The power carrier amplifying circuit 1 further includes a power level monitor 80.

The charge monitor 80 has one end electrically connected to the electric energy storage 20 and the other end electrically connected to the controller 50, and the charge controller 60 is also electrically connected to the controller 50.

The power monitor 80 collects power status information in the electrical energy storage device 20 and sends the power status information to the controller 50, wherein the power status information represents the power level.

The controller 50 determines whether the electric quantity stored in the electric energy storage 20 is less than a preset electric quantity according to the electric quantity condition information, and sends a charging command to the charging controller 60 if it is determined that the electric quantity stored in the electric energy storage 20 is less than the preset electric quantity.

Upon receiving the charging instruction, the charging controller 60 turns on the connection to the power supply 70 so that the power supply 70 charges the electric energy storage 20.

Wherein, the preset electric quantity can be 0-30%.

In a possible implementation scenario, assuming that the preset charge amount is 10%, that is, when the charge monitor 80 collects the state-of-charge information of the electrical energy storage device indicating that the charge amount in the electrical energy storage device is less than 10%, the controller 50 sends a charging command to the charging controller 60, and after receiving the charging command, the charging controller 60 switches on the connection with the power source 70, so that the electrical energy storage device 20 communicates with the power source 70, so that the power source 70 charges the electrical energy storage device 20. It will be appreciated that when the charge in the electrical energy storage device 20 is full, the charge controller 60 may disconnect the power source 70, thereby disconnecting the electrical energy storage device 20 from the power source 70 and stopping charging the electrical energy storage device 20.

Thus, the electric quantity in the electric energy storage device can be obtained in real time through the electric quantity monitor 80, and when the electric quantity in the electric energy storage device 20 is insufficient, the electric energy storage device 20 is charged in time.

Further, the above-mentioned electric energy storage may be one. When the number of the electric energy storage devices is one, the electric energy storage device 20 needs to be charged and discharged frequently, the service life of the electric energy storage device may not be long, and still a worker needs to replace the new electric energy storage device 20 frequently and periodically, in order to make the voltage of the carrier amplifier 10 more stable and make the service life of the electric energy storage device 20 longer, the number of the electric energy storage devices may be multiple, and the following detailed description will be given to the case that the number of the electric energy storage devices 20 is multiple:

referring to fig. 4, fig. 4 is a fourth schematic diagram of functional modules of the power carrier amplifying circuit 1 according to the embodiment of the present disclosure.

In an alternative embodiment, the electrical energy storage device 20 includes a plurality of sub-electrical energy storage devices 21, and the signal control switch 40 includes a plurality of sub-signal control switches 41.

The respective sub electric energy storages 21 are connected in parallel, and an output terminal of each sub electric energy storage is electrically connected to an input terminal of one sub signal control switch 41.

An output terminal of each sub-signal control switch 41 is electrically connected to an input terminal of the carrier amplifier 10, and a control terminal of each sub-signal control switch 41 is electrically connected to the controller 50.

The controller 50 determines whether the current value is smaller than a preset threshold, and when determining that the current value of the carrier amplifier 10 is smaller than the preset threshold, sends a control command to any one or more target sub-signal control switches 41.

Each target sub-signal control switch 41, upon receiving the control instruction, controls the sub-electric energy storage 21 electrically connected to the target sub-signal control switch 41 to discharge and supply electric energy to the carrier amplifier 10.

It is understood that the sub electric energy storages 21 are in one-to-one correspondence with the sub signal control switches 41, and the number is the same. The number of sub electrical energy storage may be 2, 3, 4, 5, etc.

For example, when the number of the sub electric energy storages 21 is 4, the number of the sub signal control switches 41 is also 4. The first sub electric energy storage, the second sub electric energy storage, the third sub electric energy storage and the fourth sub electric energy storage are respectively and correspondingly connected with the first sub signal control switch, the second sub signal control switch, the third sub signal control switch and the fourth sub signal control switch.

When the controller 50 determines that the current value of the carrier amplifier 10 is smaller than the preset threshold value, it sends a control instruction to any one or more of the sub-signal control switches 41. For example, the control instruction is sent to the first sub-signal control switch or sent to the third sub-signal control switch and the fourth sub-signal control switch. The first sub-signal control switch is closed after receiving the control instruction, so that the first sub-electric energy storage is communicated with the carrier amplifier 10, and the first sub-electric energy storage provides electric energy for the carrier amplifier 10. Or, the third sub-signal control switch and the fourth sub-signal control switch are closed after receiving the control instruction, so that the third sub-electric energy storage is communicated with the carrier amplifier 10, meanwhile, the fourth sub-electric energy storage is communicated with the carrier amplifier 10, and the third sub-electric energy storage and the fourth sub-electric energy storage simultaneously provide electric energy for the carrier amplifier 10.

Therefore, the plurality of sub-electric energy storages 21 can be used for providing electric energy for the carrier amplifier 10 at the same time, so that the voltage of the carrier amplifier 10 is more stable, and frequent charging and discharging is not needed, so that the service life of the electric energy storage 20 is longer.

Further, continuing to refer to fig. 4, in an alternative embodiment, the charge monitor 80 includes a plurality of sub-charge monitors 81.

One end of each sub-electrical-quantity monitor 81 is electrically connected to each sub-electrical-energy storage 21, and the other end is electrically connected to the controller 50.

The sub-electric energy storages 21, the sub-signal control switches 41 and the sub-electric quantity monitors 81 are in one-to-one correspondence, and the number of the sub-electric quantity monitors 81 is the same, and each sub-electric quantity monitor 81 monitors the electric quantity of the corresponding connected sub-electric energy storage 21.

Each sub-electric quantity monitor 81 is configured to collect electric quantity condition information in the sub-electric energy storage 21 electrically connected to the sub-electric quantity monitor 81, and send the electric quantity condition information to the controller 50, where the electric quantity condition information represents the electric quantity.

The controller 50 is further configured to send a control instruction to any one or more target sub-signal control switches 41 according to the power status information when the current value of the carrier amplifier 10 is determined to be smaller than the preset threshold.

Each target sub-signal control switch 41 is configured to control the sub-electric energy storage 21 electrically connected to the target sub-signal control switch 41 to discharge and supply electric energy to the carrier amplifier 10, in case of receiving a control instruction.

Exemplarily, the sub-power monitors 81 include four sub-power monitors, namely, a first sub-power monitor, a second sub-power monitor, a third sub-power monitor, and a fourth sub-power monitor. If the first sub-electric-quantity monitor acquires that the electric quantity of the first sub-electric-energy storage is 80%, the second sub-electric-quantity monitor acquires that the electric quantity of the second sub-electric-energy storage is 70%, the third sub-electric-quantity monitor acquires that the electric quantity of the third sub-electric-energy storage is 100%, and the fourth sub-electric-quantity monitor acquires that the electric quantity of the fourth sub-electric-energy storage is 0%, when the controller 50 determines that the current value of the carrier amplifier 10 is smaller than the preset threshold value, a control instruction can be sent to the first sub-electric-energy storage, the second sub-electric-energy storage and the third sub-electric-energy storage, so that the first sub-electric-energy storage, the second sub-electric-energy storage and the third sub-electric-energy storage provide a power source 70 for the carrier amplifier 10 together, and the fourth sub-electric-energy storage without electric quantity is not used. And the electric quantity in the fourth sub electric energy storage is used after the electric quantity is charged and recovered.

In this way, the power carrier amplifier circuit 1 provided in the embodiment of the present application can collect the electric quantity of each sub electric energy storage 21 through each sub electric quantity monitor 81, and adopt different usage allocation strategies according to the electric quantity of different sub electric energy storage 21, thereby improving the stability of the power supply 70 for the carrier amplifier 10.

In a second aspect, the present application provides a power system comprising the power carrier amplification circuit of any of the preceding embodiments.

In an optional embodiment, the power system further includes a smart meter, and the smart meter is connected to the power carrier amplifying circuit through a power line.

The power carrier amplifying circuit sends a carrier signal to the intelligent electric meter so that the intelligent electric meter operates based on the carrier signal.

In an optional embodiment, the power system further includes an electricity load, the electricity load is connected to the smart meter, and the smart meter is configured to collect electricity consumption of the electricity load.

Because the principle of the device in the embodiment of the present application for solving the problem is similar to the power carrier amplifying circuit and the power system in the embodiment of the present application, the implementation principle of the device may refer to the implementation principle of the method, and repeated details are not repeated.

In summary, the embodiment of the present application provides a power carrier amplifying circuit and a power system, including a carrier amplifier, an electric energy storage, a current monitor, a signal control switch and a controller. The output end of the electric energy storage is electrically connected with the input end of the signal control switch, the output end of the signal control switch is electrically connected with the input end of the carrier amplifier, and the control end of the signal control switch is electrically connected with the controller. One end of the current monitor is electrically connected with the output end of the carrier amplifier, and the other end of the current monitor is electrically connected with the controller. The electric energy storage is used for storing electric energy; the current monitor is used for collecting the current value of the output end of the carrier amplifier and sending the current value to the controller. The controller is used for judging whether the current value is smaller than a preset threshold value or not, and sending a control instruction to the signal control switch when the current value is smaller than the preset threshold value. The signal control switch is used for controlling the electric energy storage to discharge under the condition of receiving the control instruction, so that electric energy is provided for the carrier amplifier, and the problem that the carrier signal cannot be completely transmitted to a power line due to insufficient power supply or insufficient power supply, and communication failure is caused is solved.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.