CN110597120A - Acquisition terminal and method based on power line carrier - Google Patents
Acquisition terminal and method based on power line carrier Download PDFInfo
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- CN110597120A CN110597120A CN201910871876.6A CN201910871876A CN110597120A CN 110597120 A CN110597120 A CN 110597120A CN 201910871876 A CN201910871876 A CN 201910871876A CN 110597120 A CN110597120 A CN 110597120A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
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- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C19/00—Electric signal transmission systems
- G08C19/02—Electric signal transmission systems in which the signal transmitted is magnitude of current or voltage
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/54—Systems for transmission via power distribution lines
- H04B3/56—Circuits for coupling, blocking, or by-passing of signals
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Abstract
The invention discloses a power carrier-based acquisition terminal, and relates to the field of instrument and equipment management. The acquisition module is used for acquiring current signals from the power line every preset period, generating enabling signals according to the circuit signals and sending the enabling signals to the main control module; the main control module is used for controlling the AD sampling module to obtain the current value of the target equipment in the current period when the enabling signal is not received, judging whether the current value exceeds the preset current value, controlling the metering module to measure the electrical parameter of the target equipment if the current value exceeds the preset current value, receiving the timestamp of the current moment sent by the time keeping module, generating a data packet according to the electrical parameter and the timestamp, and controlling the storage module to store the data packet. The acquisition terminal provided by the invention improves the utilization efficiency of target equipment, can solve the problems that the acquisition terminal cannot time in an offline signal environment and finishes acquisition of the use information of instrument equipment, and improves the practicability.
Description
Technical Field
The invention relates to the field of instrument and equipment management, in particular to a power carrier-based acquisition terminal and a power carrier-based acquisition method.
Background
At present, in the management process of the instrument and equipment, in order to efficiently and reasonably utilize the instrument and equipment, the use information of the instrument and equipment needs to be recorded. In recent years, information is transmitted by using the power carrier technology, so that the flexibility is high, an independent channel is not required to be built, and the reconstruction cost can be greatly reduced by applying the power carrier technology to the statistical management of instrument equipment.
However, the existing intelligent acquisition terminal using the power carrier technology cannot count time in an offline signal environment, and cannot acquire the use information of the instrument and equipment.
Disclosure of Invention
The technical problem to be solved by the invention is to provide the method aiming at the defects of the prior art.
The technical scheme for solving the technical problems is as follows:
an acquisition terminal based on a power carrier wave comprises: collection module, carrier wave module, host system, AD sampling module, metering module, storage module and module of keeping in time, wherein:
the acquisition module is used for acquiring current signals from the power line at intervals of a preset period, generating enabling signals according to the circuit signals and sending the enabling signals to the main control module; the main control module is used for controlling the AD sampling module to obtain a current value of target equipment in a current period when an enabling signal is received, judging whether the current value exceeds a preset current value, if so, controlling the metering module to measure an electrical parameter of the target equipment, receiving a timestamp of the current moment sent by the time keeping module, generating a data packet according to the electrical parameter and the timestamp, and controlling the carrier module to convert the data packet into a carrier signal which is coupled to the power line; the main control module is further used for controlling the AD sampling module to obtain a current value of the target device in a current period when the enabling signal is not received, judging whether the current value exceeds a preset current value, controlling the metering module to measure an electrical parameter of the target device if the current value exceeds the preset current value, receiving a timestamp of the current moment sent by the time keeping module, generating a data packet according to the electrical parameter and the timestamp, and controlling the storage module to store the data packet.
The invention has the beneficial effects that: according to the acquisition terminal provided by the invention, the time stamp is added to the acquired data packet through the time keeping module, so that the time of the user for using the target equipment can be accurately confirmed, the use scheme of the target equipment can be reasonably determined according to the acquired data, and the utilization efficiency of the target equipment is improved. And through the current signal in the collection power line, judge through the current signal that collection terminal work is in off-line mode or online mode, then divide the service data of mode collection target device, under the off-line mode, with the data package storage of gathering in local storage module to follow-up go out the data package transmission, can solve collection terminal unable timing under the environment of off-line signal, accomplish the problem of the collection of instrument equipment service information, improved the practicality.
Another technical solution of the present invention for solving the above technical problems is as follows:
a collection method based on power line carrier, which uses the collection terminal based on power line carrier to collect according to the technical scheme, comprises the following steps:
the acquisition module acquires current signals from the power line every other preset period, generates enabling signals according to the circuit signals and sends the enabling signals to the main control module;
when an enable signal is received, the main control module controls the AD sampling module to obtain a current value of target equipment in a current period, judges whether the current value exceeds a preset current value, controls the metering module to measure an electrical parameter of the target equipment if the current value exceeds the preset current value, receives a timestamp of the current moment sent by the time keeping module, generates a data packet according to the electrical parameter and the timestamp, and controls the carrier module to convert the data packet into a carrier signal which is coupled to the power line;
when the enabling signal is not received, the main control module controls the AD sampling module to obtain the current value of the target device in the current period, judges whether the current value exceeds a preset current value, controls the metering module to measure the electrical parameter of the target device if the current value exceeds the preset current value, receives the timestamp of the current moment sent by the time keeping module, generates a data packet according to the electrical parameter and the timestamp, and controls the storage module to store the data packet.
Advantages of additional aspects of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural framework diagram provided in an embodiment of a power carrier-based acquisition terminal according to the present invention;
fig. 2 is a schematic structural framework diagram provided by another embodiment of the power carrier-based acquisition terminal of the present invention;
fig. 3 is a schematic diagram of a structural framework of a storage module according to another embodiment of the power carrier-based acquisition terminal of the present invention.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.
As shown in fig. 1, a schematic structural framework diagram provided for an embodiment of a power carrier-based acquisition terminal according to the present invention is provided, where the acquisition terminal includes: collection module 1, carrier wave module 2, host system 3, AD sampling module 4, metering module 5, storage module 6 and module 7 of keeping in time, wherein:
the acquisition module 1 is used for acquiring current signals from the power line every preset period, generating enable signals according to the circuit signals and sending the enable signals to the main control module 3; the main control module 3 is used for controlling the AD sampling module 4 to obtain a current value of the target device in a current period when the enable signal is received, judging whether the current value exceeds a preset current value, if so, controlling the metering module 5 to measure an electrical parameter of the target device, receiving a timestamp of the current moment sent by the time keeping module 7, generating a data packet according to the electrical parameter and the timestamp, and controlling the carrier module 2 to convert the data packet into a carrier signal which is coupled to a power line; the main control module 3 is further configured to, when the enable signal is not received, control the AD sampling module 4 to obtain a current value of the target device in a current period, determine whether the current value exceeds a preset current value, if so, control the metering module 5 to measure an electrical parameter of the target device, receive a timestamp of a current moment sent by the time keeping module 7, generate a data packet according to the electrical parameter and the timestamp, and control the storage module 6 to store the data packet.
It should be understood that the preset period and the preset current value may be set according to actual requirements, the preset current value when the main control module 3 receives the enable signal may be the same as or different from the preset current value when the enable signal is not received, and the preset current value may be used to determine whether the target device is working.
When the main control module 3 receives the enable signal, it indicates that current passes through the power line at this time, carrier transmission can be performed, and at this time, the acquisition terminal works in an online mode.
For example, assume that the acquisition module 1 acquires a current signal from the power line 1 time every 3 seconds. The preset period is 3 seconds, and assuming that there is current in the power line, the acquisition module 1 generates an enable signal and sends the enable signal to the main control module 3, and the main control module 3 executes the work flow of the online module in the next 3 seconds, and couples the acquired data packet to the power line for transmission. Assuming that no current exists in the power line, after the main control module 3 receives the last enable signal, after 3 seconds, the main control module 3 does not receive the enable signal, and then the main control module 3 executes the work flow of the offline module within the next 3 seconds, and stores the acquired data packet in the storage module 6. And then repeating the process, taking 3 seconds as a period, and entering different processing flows according to the condition of receiving the enabling signal.
In this embodiment, the input of collection terminal is connected on the power jack of target device, and the output is connected on the power line.
Specifically, the electrical parameter may include a voltage value, a current value, and the like.
The acquisition terminal that this embodiment provided adds the timestamp for the data packet of gathering through module 7 on time, can the accurate time of confirming the user and using target device to can rationally confirm target device's use scheme according to the data of gathering, improved target device's utilization efficiency. And through the current signal in the collection power line, judge through the current signal that collection terminal work is in off-line mode or online mode, then divide the service data of mode collection target device, under the off-line mode, the data package that will gather is saved in local storage module 6 to follow-up go out the data package transmission, can solve collection terminal unable timing under the environment of off-line signal, accomplish the problem of the collection of instrument and equipment service information, improved the practicality.
Fig. 2 is a schematic structural framework diagram provided for another embodiment of the power carrier-based acquisition terminal of the present invention, and some alternative embodiments of the present invention are described below with reference to fig. 2.
Optionally, in some embodiments, the main control module 3 is further configured to control the carrier module 2 to convert the data packet into a carrier signal, generate a preset identifier after the data packet is coupled to the power line, add the preset identifier to the data packet, and store the data packet with the preset identifier added to the storage module 6.
The preset identifier may be set in a specific form according to actual requirements, for example, the preset identifier may be a specific character segment, or may be a specific program, which indicates that the data packet storing the preset identifier has been coupled to the power line through the carrier module 2 for transmission.
That is, there are two types of data packets stored in the storage module 6, one is a data packet stored in an offline state without a preset identifier, and the other is a data packet stored in an online state with a preset identifier that has been transmitted through a power line.
The data packets after coupling transmission are stored in the storage module 6, so that recording failure caused by sudden power failure or other reasons can be prevented, backup is provided for data storage, and the data packets stored in the online mode and the data packets stored in the offline mode can be distinguished by storing the preset identification, so that subsequent data maintenance and use are facilitated.
Optionally, in some embodiments, the main control module 3 is further configured to check whether a data packet without the preset identifier exists in the storage module 6 when the enable signal is received, and if so, control the carrier module 2 to convert the data packet without the preset identifier into a carrier signal, and couple the carrier signal to the power line.
It should be understood that after the data packet without the preset identifier is converted into the carrier signal and coupled to the power line, the preset identifier is added to the data packet without the preset identifier to indicate that the data packet has been transmitted.
The main control module 3 checks whether a data packet which is not sent exists in the storage module 6 or not by checking when receiving the enabling signal every time, so that the data collected by the collecting terminal in an off-line state can be timely sent out after the power line is electrified, and the data is identified by the preset identification, and the main control module has the advantage of high identification speed.
Optionally, in some embodiments, the main control module 3 is specifically configured to, when receiving the enable signal, check whether a data packet without the preset identifier exists in the storage module 6, and if the data packet without the preset identifier exists, control the carrier module 2 to convert the data packet without the preset identifier into a carrier signal according to a time sequence of timestamps in the data packet without the preset identifier, and couple the carrier signal to the power line.
Optionally, in some embodiments, the method further comprises: fingerprint identification module 8 and relay module 9, fingerprint identification module 8 is used for acquireing current user's fingerprint information, host system 3 still is used for judging whether current user's fingerprint is the same with predetermineeing the fingerprint according to fingerprint information, if the same, then send for host system 3 circular telegram enable signal, host system 3 is used for according to circular telegram enable signal control relay module 9 actuation, collection module 1 specifically is used for when relay module 9 actuation back, from the power line acquisition current signal every preset cycle.
Wherein relay module 9 can include the relay, and the relay is normally open relay, and one end is connected with the power line, and the other end is connected with host system 3.
Open the collection terminal through fingerprint identification, can improve the security of collection terminal use to can be through the different users of fingerprint information identification, thereby can generate different service information to different users, solved current collection terminal and can only gather current terminal's service information, can't carry out categorised problem to the data of gathering according to user's difference.
Optionally, in some embodiments, the main control module 3 is further configured to determine a user ID of the current user according to the fingerprint information when the fingerprint of the current user is the same as the preset fingerprint, and add the user ID to the data packet.
The user ID is determined according to the fingerprint information, and then the user ID is added into the data packet, so that the data sent by the acquisition terminal through the power line contains the information of the user, the use condition of the acquisition terminal can be analyzed by combining the information of the user, the use prospect is wide, and the method and the device can be applied to equipment use condition monitoring, statistical analysis and the like.
Optionally, in some embodiments, the method further comprises: the Beidou module 10 is used for acquiring longitude and latitude information, and the main control module 3 is also used for judging whether the longitude and latitude of the acquisition terminal is within a preset longitude and latitude range according to the longitude and latitude information, if so, the longitude and latitude information is added into a data packet, and if not, the operation is stopped.
By recording the use position of the acquisition terminal, the acquisition terminal can be prevented from being used at a non-specified position, and the safety is improved.
Optionally, in some embodiments, the beidou module 10 is further configured to obtain time information, and calibrate the time keeping module 7 at preset time intervals according to the time information.
Optionally, in some embodiments, the storage module 6 includes N storage sub-modules 60, and the main control module 3 is specifically configured to store the data packet in the nth storage sub-module 60, and store the data packet in the (N + 1) th storage sub-module 60 when the write time written in the nth storage sub-module 60 exceeds a preset write time, where N is 1, 2, 3, …, N.
It should be noted that, the count value of the acquisition terminal is stored in the storage module 6, the storage module 6 needs to be erased every 3 minutes in order to ensure accurate timing, but the erasing life of the storage module 6 in the current market is about 10 ten thousand times, so the effective service life of the intelligent terminal is only 5000 hours, and the sustainable work of the acquisition terminal is greatly influenced.
For example, the predetermined write time may be 5000 hours, and the second storage submodule 60 is automatically replaced when the predetermined write time reaches 5000 hours.
As shown in fig. 3, a schematic diagram of an exemplary memory module 6 is provided, where the schematic diagram includes 5 memory sub-modules 60, and when the internal timer reaches a preset write time, the next memory sub-module 60 is accessed through the interface chip 15 by adding a chip select function in the main control module 3.
Optionally, in some embodiments, the method may further include: and the display module 11 is used for displaying the electrical parameters, the time stamps, the longitude and latitude information and the user ID.
Optionally, in some embodiments, the method may further include: and the voice module 12 is used for broadcasting voice information such as use notice and the like after the main control module 3 passes through the fingerprint information of the current user.
Optionally, in some embodiments, the method may further include: and the power supply module 13 is used for supplying power to other modules.
Preferably, power module 13 can be directly connected with the power line, changes alternating current 220V into direct current 5V and direct current 12V, and direct current 5V can be serial module 14, metering module 5, AD sampling module 4, host system 3, storage module power supply, module 7, voice module, big dipper module 10, fingerprint identification module 8, the relay power supply of keeping in time. The direct current 12V can supply power for the carrier module 2 and the display module.
The serial module 14 may be used to obtain debug information.
It is understood that some or all of the alternative embodiments described above may be included in some embodiments.
In another embodiment of the present invention, there is further provided a power carrier-based acquisition method, which uses the power carrier-based acquisition terminal according to any of the above embodiments to perform acquisition, including:
the acquisition module acquires current signals from the power line every other preset period, generates enabling signals according to the circuit signals and sends the enabling signals to the main control module;
when an enable signal is received, the main control module controls the AD sampling module to obtain a current value of the target equipment in a current period, judges whether the current value exceeds a preset current value, controls the metering module to measure an electrical parameter of the target equipment if the current value exceeds the preset current value, receives a timestamp of the current moment sent by the time keeping module, generates a data packet according to the electrical parameter and the timestamp, and controls the carrier module to convert the data packet into a carrier signal which is coupled to a power line;
when the enabling signal is not received, the main control module controls the AD sampling module to obtain the current value of the target device in the current period, whether the current value exceeds a preset current value is judged, if the current value exceeds the preset current value, the metering module is controlled to measure the electrical parameter of the target device, the timestamp of the current moment sent by the time keeping module is received, the data packet is generated according to the electrical parameter and the timestamp, and the storage module is controlled to store the data packet.
Optionally, in some embodiments, the controlling module controls the carrier module to convert the data packet into a carrier signal, and after the data packet is coupled to the power line, the controlling module further includes:
and generating a preset identifier, adding the preset identifier into the data packet, and storing the data packet added with the preset identifier in a storage module.
Optionally, in some embodiments, after the master control module receives the enable signal, the method further includes:
and checking whether a data packet without a preset identifier exists in the storage module, and if so, controlling the carrier module to convert the data packet without the preset identifier into a carrier signal which is coupled to the power line.
Optionally, in some embodiments, checking whether a data packet without a preset identifier exists in the storage module, and if so, controlling the carrier module to convert the data packet without the preset identifier into a carrier signal, which is coupled to the power line, specifically includes:
whether a data packet without a preset identifier exists in the storage module is checked, if yes, the carrier module is controlled to convert the data packet without the preset identifier into a carrier signal according to the time sequence of timestamps in the data packet without the preset identifier, and the carrier signal is coupled to the power line.
Optionally, in some embodiments, the method further comprises:
the fingerprint identification module acquires fingerprint information of a current user;
the main control module judges whether the fingerprint of the current user is the same as the preset fingerprint according to the fingerprint information, if so, the main control module sends a power-on enabling signal to the main control module, and the relay module is controlled to be attracted according to the power-on enabling signal;
when the relay module is attracted, the acquisition module acquires current signals from the power line at preset intervals.
Optionally, in some embodiments, the method further comprises:
and when the fingerprint of the current user is the same as the preset fingerprint, the main control module determines the user ID of the current user according to the fingerprint information and adds the user ID into the data packet.
Optionally, in some embodiments, the method further comprises:
the Beidou module acquires longitude and latitude information;
the main control module judges whether the longitude and latitude of the acquisition terminal is within a preset longitude and latitude range according to the longitude and latitude information, if so, the longitude and latitude information is added into the data packet, and if not, the operation is stopped.
Optionally, in some embodiments, the method further comprises:
the Beidou module acquires time information and calibrates the time keeping module according to the time information and preset time intervals.
Optionally, in some embodiments, the storage module includes N storage sub-modules, and the main control module controls the storage module to store the data packet, specifically including:
the main control module stores the data packet in the nth storage submodule, and when the writing time written into the nth storage submodule exceeds the preset writing time, the data packet is stored in the (N + 1) th storage submodule, wherein N is 1, 2, 3, … and N.
It is understood that some or all of the alternative embodiments described above may be included in some embodiments.
It should be noted that the above embodiments are method embodiments corresponding to previous product embodiments, and for the description of each optional implementation in the method embodiments, reference may be made to corresponding descriptions in the above product embodiments, and details are not described here again.
The reader should understand that in the description of this specification, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. For example, the above-described method embodiments are merely illustrative, and for example, the division of steps into only one logical functional division may be implemented in practice in another way, for example, multiple steps may be combined or integrated into another step, or some features may be omitted, or not implemented.
While the invention has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides an acquisition terminal based on power line carrier which characterized in that includes: collection module, carrier wave module, host system, AD sampling module, metering module, storage module and module of keeping in time, wherein:
the acquisition module is used for acquiring current signals from the power line at intervals of a preset period, generating enabling signals according to the circuit signals and sending the enabling signals to the main control module; the main control module is used for controlling the AD sampling module to obtain a current value of target equipment in a current period when an enabling signal is received, judging whether the current value exceeds a preset current value, if so, controlling the metering module to measure an electrical parameter of the target equipment, receiving a timestamp of the current moment sent by the time keeping module, generating a data packet according to the electrical parameter and the timestamp, and controlling the carrier module to convert the data packet into a carrier signal which is coupled to the power line; the main control module is further used for controlling the AD sampling module to obtain a current value of the target device in a current period when the enabling signal is not received, judging whether the current value exceeds a preset current value, controlling the metering module to measure an electrical parameter of the target device if the current value exceeds the preset current value, receiving a timestamp of the current moment sent by the time keeping module, generating a data packet according to the electrical parameter and the timestamp, and controlling the storage module to store the data packet.
2. The power carrier-based acquisition terminal according to claim 1, wherein the main control module is further configured to control the carrier module to convert the data packet into a carrier signal, generate a preset identifier after coupling to the power line, add the preset identifier to the data packet, and store the data packet to which the preset identifier is added in the storage module.
3. The power carrier-based acquisition terminal according to claim 2, wherein the main control module is further configured to check whether a data packet without a preset identifier exists in the storage module when receiving an enable signal, and if so, control the carrier module to convert the data packet without the preset identifier into a carrier signal, and couple the carrier signal to the power line.
4. The power carrier-based acquisition terminal according to claim 3, wherein the main control module is specifically configured to check whether a data packet without the preset identifier exists in the storage module when receiving the enable signal, and if so, control the carrier module to convert the data packet without the preset identifier into a carrier signal according to a time sequence of timestamps in the data packet without the preset identifier, and couple the carrier signal to the power line.
5. The power carrier-based acquisition terminal of claim 1, further comprising: fingerprint identification module and relay module, fingerprint identification module is used for acquireing current user's fingerprint information, host system still is used for the basis fingerprint information judges whether current user's fingerprint is the same with presetting the fingerprint, if the same, then send for host system circular telegram enable signal, host system is used for the basis circular telegram enable signal control relay module actuation, acquisition module specifically is used for working as after the relay module actuation, the electric current signal is gathered from the power line to every preset cycle.
6. The power carrier-based acquisition terminal according to claim 5, wherein the main control module is further configured to determine a user ID of the current user according to the fingerprint information when the fingerprint of the current user is the same as a preset fingerprint, and add the user ID to the data packet.
7. The power carrier-based acquisition terminal of claim 1, further comprising: the Beidou module is used for acquiring longitude and latitude information, the main control module is also used for judging whether the longitude and latitude of the acquisition terminal is within a preset longitude and latitude range according to the longitude and latitude information, if so, the longitude and latitude information is added into the data packet, and if not, the operation is stopped.
8. The power carrier-based acquisition terminal according to claim 7, wherein the Beidou module is further configured to obtain time information, and calibrate the time keeping module at preset time intervals according to the time information.
9. The power carrier-based acquisition terminal according to any one of claims 1 to 8, wherein the storage module includes N storage sub-modules, the main control module is specifically configured to store the data packet in an nth storage sub-module, and when a write time written in the nth storage sub-module exceeds a preset write time, store the data packet in an N +1 th storage sub-module, where N is 1, 2, 3, …, N.
10. A power carrier-based acquisition method, wherein the power carrier-based acquisition terminal according to any one of claims 1 to 9 is used for acquisition, and the method comprises the following steps:
the acquisition module acquires current signals from the power line every other preset period, generates enabling signals according to the circuit signals and sends the enabling signals to the main control module;
when an enable signal is received, the main control module controls the AD sampling module to obtain a current value of target equipment in a current period, judges whether the current value exceeds a preset current value, controls the metering module to measure an electrical parameter of the target equipment if the current value exceeds the preset current value, receives a timestamp of the current moment sent by the time keeping module, generates a data packet according to the electrical parameter and the timestamp, and controls the carrier module to convert the data packet into a carrier signal which is coupled to the power line;
when the enabling signal is not received, the main control module controls the AD sampling module to obtain the current value of the target device in the current period, judges whether the current value exceeds a preset current value, controls the metering module to measure the electrical parameter of the target device if the current value exceeds the preset current value, receives the timestamp of the current moment sent by the time keeping module, generates a data packet according to the electrical parameter and the timestamp, and controls the storage module to store the data packet.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112953598A (en) * | 2021-03-20 | 2021-06-11 | 浙江盛暄电力科技有限公司 | Multichannel power line carrier communication system |
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