CN217883848U - Communication device, ammeter and electric power system based on WIFI - Google Patents
Communication device, ammeter and electric power system based on WIFI Download PDFInfo
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- CN217883848U CN217883848U CN202222329631.0U CN202222329631U CN217883848U CN 217883848 U CN217883848 U CN 217883848U CN 202222329631 U CN202222329631 U CN 202222329631U CN 217883848 U CN217883848 U CN 217883848U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The utility model provides a communication device, ammeter and electric power system based on WIFI, include: the device comprises a WIFI module, a serial port conversion module, a voltage stabilizing module and an indicator lamp module; the serial port conversion module, the voltage stabilizing module and the indicator light module are connected with the WIFI module; the WIFI module is a single-SOC WIFI module and is used for communicating with the electric meter and the master station server, sending a meter reading command issued by the master station server to the electric meter and returning meter reading data of the electric meter to the master station server; the serial port conversion module is used for level conversion between the ammeter and the WIFI module; the voltage stabilizing module is used for supplying power to the WIFI module; the indicator light module is used for indicating the running state of the communication device. The utility model discloses communication device's cost has been reduced.
Description
Technical Field
The utility model belongs to the technical field of the smart electric meter technique and specifically relates to a communication device, ammeter and electric power system based on WIFI.
Background
At present, most of the smart meters adopt a mode of requiring traffic charges, or a Narrow-Band Internet of Things (NB-IoT), 2G, 4G and other modes for communication, and the modes have high requirements on a base station and a platform; in addition, the existing smart electric meter also adopts a mode of a Micro Control Unit (MCU) and a WIFI transparent transmission module to carry out communication, but the cost of an MCU chip is higher. In summary, the communication method of the existing smart electric meter has high cost.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a communication device, ammeter and electric power system based on WIFI has reduced communication device's cost.
In order to achieve the above object, the embodiment of the present invention adopts the following technical solutions:
in a first aspect, an embodiment of the present invention provides a communication device based on WIFI, include: the device comprises a WIFI module, a serial port conversion module, a voltage stabilizing module and an indicator light module; the serial port conversion module, the voltage stabilizing module and the indicator lamp module are connected with the WIFI module; the WIFI module is a single-SOC WIFI module and is used for communicating with the electric meter and the master station server, sending a meter reading command issued by the master station server to the electric meter and returning meter reading data of the electric meter to the master station server; the serial port conversion module is used for level conversion between the ammeter and the WIFI module; the voltage stabilizing module is used for supplying power to the WIFI module; the indicating lamp module is used for indicating the running state of the communication device.
In one embodiment, the communication device further comprises: a power failure backup power module; wherein, the power failure backup power supply module is connected with the voltage stabilizing module; and the power failure backup power supply module is used for supplying power to the voltage stabilizing module when the ammeter has power failure.
In one embodiment, the communication device further comprises: a power conversion module; the power conversion module is connected with the power failure backup power module and the voltage stabilizing module; the power supply conversion module adopts a DCDC conversion chip EAT1477 and is used for converting external power supply voltage into target voltage and outputting the target voltage to the power failure backup power supply module and the voltage stabilizing module.
In one embodiment, the communication device further comprises: a power failure detection module; the power failure detection module is connected with the power conversion module and the WIFI module; the power failure detection module is used for sending a power failure signal to the WIFI module when the external power supply voltage is smaller than a preset voltage, so that the WIFI module reports power failure information to the master station server.
In one embodiment, the communication device further comprises: a watchdog module; the watchdog module is connected with the WIFI module; the watchdog module adopts a watchdog chip SGM821GN6G/TR and is used for resetting the WIFI module when the communication device is abnormal in operation.
In one embodiment, the communication device further comprises: the download port and the debugging port are used for connecting external equipment so as to carry out debugging operation and/or upgrading operation on the communication device.
In one embodiment, the communication device further comprises: a communication interface; wherein, the communication interface adopts single-phase or three-phase ammeter universal interface.
In a second aspect, an embodiment of the present invention provides an electricity meter, including: the WIFI-based communication device of any one of the first aspect provides.
In a third aspect, an embodiment of the present invention provides an electric power system, including: the system comprises a master station server, an optical line terminal, a plurality of electric meters provided by the second aspect and a plurality of optical fiber terminals; the plurality of electric meters are connected to an optical fiber terminal through a WIFI network, the optical fiber terminal is connected with an optical line terminal through an optical fiber channel, and the optical line terminal is further connected with a master station server.
In a fourth aspect, an embodiment of the present invention provides an electric power system, including: the system comprises a main station server, a plurality of electric meters provided by the second aspect and a mobile terminal connected with the electric meters; the electric meter is connected with the master station server through the WIFI network.
The embodiment of the utility model provides a following beneficial effect has been brought:
the embodiment of the utility model provides an above-mentioned communication device, ammeter and electric power system based on WIFI, include: the device comprises a WIFI module, a serial port conversion module, a voltage stabilizing module and an indicator light module; the serial port conversion module, the voltage stabilizing module and the indicator lamp module are connected with the WIFI module; the WIFI module is a single-SOC WIFI module and is used for communicating with the electric meter and the master station server, sending a meter reading command issued by the master station server to the electric meter and returning meter reading data of the electric meter to the master station server; the serial port conversion module is used for level conversion between the ammeter and the WIFI module; the voltage stabilizing module is used for supplying power to the WIFI module; the indicator light module is used for indicating the running state of the communication device. The communication module adopts a single-SOC WIFI module, so that the cost is low; meanwhile, the communication module is connected through WIFI, expenses are not needed, the communication module can be directly connected with a master station server or a cloud system platform in an environment covered by a network, requirements on the master station and the platform are low, and the communication module is wide in application range.
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.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following descriptions are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a communication device based on WIFI according to an embodiment of the present invention;
fig. 2 is a schematic view of another WIFI-based communication device according to an embodiment of the present invention;
fig. 3 is a circuit diagram of a watchdog module according to an embodiment of the present invention;
fig. 4 is a schematic diagram of an electric meter according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an electric power system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of another power system according to an embodiment of the present invention.
Icon:
101-a WIFI module; 102-serial port conversion module; 103-a voltage stabilizing module; 104-an indicator light module; 105-power failure backup power module; 106-power conversion module; 107-power down detection module; 108-watchdog module; 109-download port and debug port.
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 described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.
At present, most of intelligent electric meters adopt a mode of needing flow rate charge, or adopt modes of NB-IoT, 2G, 4G and the like for communication, or adopt a mode of MCU and WIFI transparent transmission module for communication, and the cost is higher.
Based on this, the embodiment of the utility model provides a pair of communication device, ammeter and electric power system based on WIFI can reduce communication device's cost.
In order to understand the present embodiment, first, the communication device based on WIFI disclosed in the embodiments of the present invention is introduced in detail, referring to the schematic structural diagram of the communication device based on WIFI shown in fig. 1, it is shown that the communication device includes the following structures: the device comprises a WIFI module 101, a serial port conversion module 102, a voltage stabilizing module 103 and an indicator light module 104; wherein, serial ports conversion module 102, voltage stabilizing module 103 and pilot lamp module 104 all are connected with WIFI module 101.
The WIFI module 101 is a single-SOC WIFI module and is used for communicating with an electric meter and a main station server, sending a meter reading command issued by the main station server to the electric meter and returning meter reading data of the electric meter to the main station server. Specifically, the WIFI module 101 adopts 8266 single SOC as a core processor, and controls the indicator light module 104 to operate according to the operating state of the communication device; the WIFI module 101 communicates with the electric meter by adopting a 9600-8-1 communication format, reads login parameters and WIFI parameters of the electric meter, and logs in the master station server based on the read login parameters and WIFI parameters; the WIFI module 101 is also used for actively uploading various alarm parameters and meter reading tasks of the electric meter; the master station server can initiatively send the command of checking meter for the ammeter through WIFI module 101, and WIFI module 101 can report the data of checking meter that the ammeter replied to the master station server.
The serial port conversion module 102 is used for level conversion between the electric meter and the WIFI module 101. Specifically, since the electric meter is a 5V system and the WIFI module 101 is a 3.3V system, TTL level conversion between 5V and 3.3V is required when the electric meter and the WIFI module 101 perform serial communication. Based on this, the embodiment of the present invention can perform TTL level conversion through the serial port conversion module 102, the serial port conversion module 102 includes a level conversion circuit, when sending a signal, the sending signal of the WIFI module 101 can be converted into a 5V signal through the level conversion circuit to send the serial port receiving pin of the electric meter; when receiving signals, the sending signals of the electric meter can be converted into 3.3V signals through the level conversion circuit to send the serial port receiving pins of the WIFI module 101, so that level matching between the electric meter and the communication device is realized.
The voltage stabilizing module 103 is used for supplying power to the WIFI module 101. Specifically, the voltage regulation module 103 may be a low dropout regulator (LDO), and an output signal thereof is dc3.3v/800mA for supplying power to the WIFI module 101 and the entire communication device.
The indicator light module 104 is used to indicate the operation status of the communication device. Specifically, the indicator light module 104 may include one or more indicator lights, and indicate different operation states of the communication device through colors, brightness, flashing or time of the indicator lights.
The WIFI-based communication device provided by the embodiment of the utility model adopts the single SOC WIFI module, so that the cost is lower; meanwhile, the communication module is connected in a WIFI (wireless fidelity) mode, so that the cost is not required, the communication module can be directly connected with a master station server or a cloud system platform in a network coverage environment, the requirements on the master station and the platform are low, and the application range is wider.
Further, referring to fig. 2, a schematic view of another WIFI-based communication device is shown, which illustrates that the communication device further includes, on the basis of fig. 1: a power failure backup power module 105, a power conversion module 106, a power failure detection module 107, a watchdog module 108, a download port and debug port 109, and a communication interface (not shown).
The power failure backup power module 105 is connected with the voltage stabilizing module 103 and used for supplying power to the voltage stabilizing module 103 when the electric meter has a power failure. Specifically, when the electricity meter has a power failure, the electricity meter power failure may be determined according to the voltage level of the circuit, and then the standby power supply (i.e., the power supply failure standby power supply module 105) is automatically activated to supply power to the voltage stabilizing module 103.
The power supply conversion module 106 is connected with the power failure backup power supply module 105 and the voltage stabilizing module 103; the power conversion module 106 adopts a DCDC conversion chip EAT1477, and is configured to convert an external power supply voltage into a target voltage, and output the target voltage to the power failure backup power module 105 and the voltage stabilizing module 103. Specifically, the power conversion module 106 adopts a DCDC conversion chip EAT1477, the output signal is dc5.3v/2A, one path of output supplies power to the power failure backup power module 105, and the other path of output supplies power to the voltage stabilizing module 103.
The power failure detection module 107 is connected with the power conversion module 106 and the WIFI module 101; the power failure detection module 107 is configured to send a power failure signal to the WIFI module 101 when the external power supply voltage is smaller than the preset voltage, so that the WIFI module 101 reports power failure information to the master station server. Specifically, the power failure detection module 107 sends a power failure signal to the WIFI module 101 when the external power supply voltage is less than 8.5V, and the WIFI module 101 detects a power failure, can start a power failure reporting process, and actively reports a power failure event to the master station server.
The watchdog module 108 is connected with the WIFI module 101; the watchdog module 108 adopts a watchdog chip SGM821GN6G/TR for resetting the WIFI module 101 when the communication device is abnormal in operation. Specifically, referring to the circuit diagram of the watchdog module shown in fig. 3, the watchdog module 108 uses a watchdog chip SGM821GN6G/TR, when the communication device is abnormal, no dog feeding is performed for a long time, a low level is output, and the WIFI module 101 is reset, so that the communication device operates normally; when downloading or debugging the communication device procedure, through short circuit J1, resistance R5 one end is the high level, the other end links to each other with resistance R4, at this moment, no matter watchdog circuit output high level or low level, do not influence being the high level of the resistance R5 other end yet, Q2 triode base is the high level promptly, the Q2 triode switches on, Q1 triode base is the low level, Q1 does not switch on, make M _ NRST be the high level, communication device resets and is not influenced by the watchdog circuit, reach the mesh that watchdog circuit became invalid.
The download port and the debug port 109 are used for connecting external devices to perform debugging operations and/or upgrading operations on the communication apparatus. Specifically, the download port and the debug port 109 may be a USB interface or an interface in other forms, and the download port and the debug port 109 are connected to an external device, so as to perform operations such as downloading, debugging, or upgrading a program of the communication apparatus.
The communication interface adopts a single-phase or three-phase electric meter universal interface, and the input signal is DC12V/400mA. Specifically, the embodiment of the utility model provides an above-mentioned communication device adopts single-phase or three-phase ammeter universal interface, but plug, is applicable to single-phase or three-phase ammeter.
According to the communication device provided by the embodiment of the utility model, the WIFI module adopts a single SOC scheme, so that the problem of insufficient MCU supply is solved, and the cost is reduced; secondly, due to the adoption of a WIFI connection mode, for the current customers with network service in the smart electric meter implementation area, the original scheme which needs flow rate charge or has requirements on a base station and a platform like NB-IoT can be directly replaced, or the scheme can be used as a supplementary scheme; finally, the wireless scheme based on the device has higher real-time performance in the network coverage environment, and provides guarantee for services with high real-time requirements such as equipment failure and the like.
To the aforesaid communication device based on WIFI, the embodiment of the utility model provides a still provide an ammeter, refer to the schematic diagram of an ammeter that figure 4 is shown, indicate this ammeter and include: the foregoing embodiments provide a WIFI-based communication device.
The embodiment of the utility model provides an above-mentioned ammeter, its communication device based on WIFI adopts the WIFI module of single SOC, and the cost is lower; meanwhile, the communication module adopts a WIFI connection mode, expenses are not needed, the communication module can be directly connected with a master station server or a cloud system platform in a network coverage environment, requirements on the master station and the platform are low, and the application range is wide; in addition, the electric meter does not need a collector, can be directly connected with a cloud system platform or a main station server, can be locally deployed, and can meet more application requirements of users.
The embodiment of the present invention provides an electricity meter, which has the same technical effects as those of the foregoing device embodiments, and for the sake of brief description, the embodiment of the electricity meter partially does not refer to the parts, and reference can be made to the corresponding contents in the foregoing device embodiments.
The embodiment of the utility model provides an electric power system, refer to the structural schematic diagram of an electric power system that figure 5 shows that this system mainly includes following structure: a master station server (i.e. the master station shown in the figure), an optical line terminal (i.e. the OLT shown in the figure), a plurality of electric meters provided by the foregoing embodiments (the WIFI communication module shown in the figure, i.e. the WIFI-based communication apparatus provided by the foregoing embodiments), and a plurality of optical fiber terminals (i.e. the OUN shown in the figure); the plurality of electric meters are connected to an optical fiber terminal through a WIFI network, the optical fiber terminal is connected with an optical line terminal through an optical fiber channel, and the optical line terminal is further connected with a master station server.
The power system shown in fig. 5 uses a fiber access to the master server. The electric meter of the communication device based on the WIFI is connected to an optical fiber terminal (OUN) through a WIFI private network, the OUN is connected to an Optical Line Terminal (OLT) through an optical fiber channel (ODN), so that a TCP/IP long link is established with a master station server, the master station server can directly read parameters of the electric meter through a communication link, and the electric meter can also report data to the master station server through the communication link. Wherein, each OUN can load 30 electric meters at most, and can be freely combined according to practical application.
Further, an embodiment of the present invention provides another power system, referring to a schematic structural diagram of another power system shown in fig. 6, which shows that the system mainly includes the following structure: the system comprises a main station server (namely, a main station shown in the figure), a plurality of electric meters provided by the foregoing embodiments (a WIFI communication module shown in the figure, namely, a WIFI-based communication device provided by the foregoing embodiments), and a mobile terminal (including a mobile phone shown in the figure and the like) connected with the electric meters; the electric meter is connected with the master station server through the WIFI network.
As shown in fig. 6, the power system is configured to access the master station server from home WIFI. The electric meter of the WIFI-based communication device establishes a TCP/IP long link with the master station server through a home WIFI network, the master station server can directly read parameters of the electric meter through a communication link, and the electric meter can also report data through the communication link; meanwhile, the user can directly read the parameters of the electric meter through mobile terminals such as a mobile phone and the like.
The embodiment of the utility model provides an above-mentioned electric power system, based on the wireless scheme of this communication device, under the environment that the network covers, have higher real-time, provide the guarantee for services that real-time requirements such as equipment failure are high; meanwhile, the electric meter does not need a collector, can be directly connected with a cloud system platform or a master station server, and can also be locally deployed, so that more application requirements of users can be met.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, reference may be made to the corresponding process in the foregoing = embodiment for a specific working process of the system described above, and details are 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 being fixedly connected, detachably connected, or integrally connected; 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 invention can be understood in specific cases to those skilled in the art.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the technical solutions of the present invention, 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: those skilled in the art can still modify or easily conceive of changes in the technical solutions described in the foregoing embodiments or make equivalent substitutions 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.
Claims (10)
1. A WIFI-based communication device, comprising: the device comprises a WIFI module, a serial port conversion module, a voltage stabilizing module and an indicator lamp module; the serial port conversion module, the voltage stabilizing module and the indicator light module are all connected with the WIFI module;
the WIFI module is a single-SOC WIFI module and is used for communicating with an electric meter and a main station server, sending a meter reading command issued by the main station server to the electric meter and returning meter reading data of the electric meter to the main station server;
the serial port conversion module is used for level conversion between the electric meter and the WIFI module;
the voltage stabilizing module is used for supplying power to the WIFI module;
the indicator light module is used for indicating the running state of the communication device.
2. The communication device of claim 1, further comprising: a power failure backup power module; the power failure backup power supply module is connected with the voltage stabilizing module;
and the power failure backup power supply module is used for supplying power to the voltage stabilizing module when the ammeter has power failure.
3. The communication device of claim 2, further comprising: a power conversion module; the power supply conversion module is connected with the power failure backup power supply module and the voltage stabilizing module;
the power supply conversion module adopts a DCDC conversion chip EAT1477 and is used for converting external power supply voltage into target voltage, and the target voltage is output to the power failure backup power supply module and the voltage stabilizing module.
4. The communication device of claim 3, further comprising: a power failure detection module; the power failure detection module is connected with the power supply conversion module and the WIFI module;
the power failure detection module is used for sending a power failure signal to the WIFI module when the external power supply voltage is smaller than a preset voltage, so that the WIFI module reports power failure information to the master station server.
5. The communication device of claim 1, further comprising: a watchdog module; the watchdog modules are connected with the WIFI module;
the watchdog module adopts a watchdog chip SGM821GN6G/TR and is used for resetting the WIFI module when the communication device operates abnormally.
6. The communication device of claim 1, further comprising: and the download port and the debugging port are used for connecting external equipment so as to carry out debugging operation and/or upgrading operation on the communication device.
7. The communication device of claim 1, further comprising: a communication interface; the communication interface adopts a single-phase or three-phase electric meter universal interface.
8. An electricity meter, comprising: the WIFI-based communication device of any one of claims 1 to 7.
9. An electrical power system, comprising: a master station server, an optical line terminal, a plurality of electric meters of claim 8, and a plurality of fiber optic terminals; the electric meters are connected to one optical fiber terminal through a WIFI network, the optical fiber terminal is connected with the optical line terminal through an optical fiber channel, and the optical line terminal is further connected with the master station server.
10. An electrical power system, comprising: a master station server, a plurality of electric meters of claim 8, and a mobile terminal connected to the electric meters; the electric meter is connected with the master station server through a WIFI network.
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| CN202222329631.0U CN217883848U (en) | 2022-08-30 | 2022-08-30 | Communication device, ammeter and electric power system based on WIFI |
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