CN209103511U - A kind of improved electric energy meter - Google Patents
A kind of improved electric energy meter Download PDFInfo
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- CN209103511U CN209103511U CN201821779510.3U CN201821779510U CN209103511U CN 209103511 U CN209103511 U CN 209103511U CN 201821779510 U CN201821779510 U CN 201821779510U CN 209103511 U CN209103511 U CN 209103511U
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- energy meter
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Abstract
Transmitting terminal is set the utility model relates to a kind of improved electric energy meter, including electric energy meter ontology, in the electric energy meter ontology and table body is equipped with I/O port；Carrier module, the carrier module are equipped with the port being connected to the I/O port grafting and set and the matched receiving end of the transmitting terminal in the carrier module；For powering for carrier module, the receiving end and transmitting terminal are communicatively coupled by coupling coil for the I/O port and port cooperation；It is additionally provided with infrared transmission module in the carrier module, infrared receiving module is correspondingly arranged in the electric energy meter ontology, the infrared transmission module and infrared receiving module carry out infrared communication.The I/O port of electric energy meter is saved in the design of the electric energy meter, and only needs software upgrading when carrier module Function Extension, without changing hardware, is conducive to resources of chip and is released；Except this has stronger anti-interference ability using this communication modes.
Description
Technical field
The utility model relates to electric energy meter field more particularly to a kind of improved electric energy meters.
Background technique
Electric energy meter because compact, precision height, good reliability, it is easy for installation the advantages that, using more next in production and living
It is more universal.
The carrier module that electric energy meter uses at present needs to connect meter with contact pin socket using table to power and communicate, namely
Carrier module is connected using I/O port with meter in the case of this kind, which has multiple, and a portion is for for carrier module
Power supply, another part transmit for realizing the information between meter and carrier module.
This mode haves the defects that more.On the one hand, this mode needs to occupy more I/O port resource, generally
TXD, RXD, STA, SET, RST, EVENTOUT 6；On the other hand, cold and hot to insert by the way of this contact pin and socket grafting
I/O port is easily damaged during pulling out；Except this, this connecting communication mode anti-interference ability is also weaker, and scalability is poor, upgrading fiber crops
It is tired.
Therefore, to solve the above problems, it is a kind of with structure improved electric energy meter it is necessory to provide, to overcome existing skill
The defect in art.
Utility model content
In view of the above problems, have the purpose of this utility model is to provide one kind and save I/O port resource, favorable expandability, liter
The improved electric energy meter of grade convenience and strong antijamming capability.
To achieve the goals above, the technical solution adopted in the utility model are as follows: a kind of improved electric energy meter, including,
Electric energy meter ontology, setting transmitting terminal and table body is equipped with I/O port in the electric energy meter ontology；
Carrier module, the carrier module are equipped with the port being connected to the I/O port grafting and set in the carrier module
With the matched receiving end of the transmitting terminal；
The I/O port and port cooperation for powering for carrier module, the receiving end and transmitting terminal by coupling coil into
Row information transmission；
It is additionally provided with infrared transmission module in the carrier module, is correspondingly arranged on infrared receiver in the electric energy meter ontology
Module, the infrared transmission module are communicated with infrared receiving module by infrared.
Further, the transmitting terminal include power conversion module, be separately connected with power conversion module output end the
One control chip and drive module, the first control chip output connect drive module control terminal, and the drive module is defeated
Outlet connection first coil simultaneously transmits square-wave signal to first coil；
The receiving end includes the first reception chip, and described first, which receives chip input terminal, connects the second coil；
The first coil and second coil form the coupling coil, and second coil couples first coil
It obtains signal waveform and is conveyed to the first reception chip.
Further, the electric energy meter ontology further includes the meter MCU chip connecting with the first control chip, described infrared
Receiving module is connected with the meter MCU chip；
The carrier module further include with the first module MCU chip for connect of reception chip, the infrared transmission module and
The module MCU chip is connected.
Further, the first filter circuit is additionally provided between the drive module output end and first coil.
Further, the second filter circuit is provided between the first reception chip and the second coil.
Further, first filter circuit is formed by the capacitor of multiple parallel connections.
Further, the infrared transmission module includes the one or three of light emitting diode and control light emitting diode on-off
Pole pipe；
The infrared receiving module includes photodiode and the second triode V1 for being controlled by photodiode.
Further, first triode is positive-negative-positive, and second triode is NPN type.
Compared with the prior art, the advantages of the utility model are: passing through coupling coil when meter sends information to main website
It is communicated as wireless transfer channel, carrier module only needs setting power supply grafting port, and will by coil coupled modes
Meter client information transmission be sent to main website, main website or carrier module to meter send information when, carried out by infrared transceiver module
Transmission, this kind optimize so that meter do not need additionally be arranged private communication IO interface, saved the IO mouth resource of meter,
And this kind designs so that when carrier module Function Extension only needs software upgrading, without changing hardware, is conducive to resources of chip and obtains
To release；This communication modes are used simultaneously, and there is stronger anti-interference ability, improve information transmission quality.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the improved electric energy meter of the utility model.
Fig. 2 is the functional block diagram of the improved electric energy meter of the utility model.
Fig. 3 is the circuit diagram of the transmitting terminal of the improved electric energy meter of the utility model.
Fig. 4 is the circuit diagram of receiving end in the carrier module of the improved electric energy meter of the utility model.
Fig. 5 is the infrared receiving module circuit diagram of the improved electric energy meter of the utility model.
Fig. 6 is the infrared transmission module circuit diagram of the improved electric energy meter of the utility model.
Specific embodiment
The embodiments of the present invention are described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the utility model, and should not be understood as to the utility model
Limitation.
It is as shown in Figure 1 the wireless communication schematic block diagram of the utility model electric energy meter, which includes electric energy meter ontology 1
With the carrier module 2 with the mating communication of electric energy meter ontology 1, which is equipped with I/O port 11, the corresponding carrier wave
Be formed with the port 21 being connected to 11 grafting of I/O port in module 2, there is contact pin 211 in the port 21, the I/O port 11 with
The cooperation of port 21 is only used for powering for carrier module 2, without being re-used as information transfer channel, just reduces the number of I/O port 11 in this way
Amount, for example two I/O ports namely contact pin 211 is only needed only to need two under this kind of situation.
In I/O port reduction to be only used as the power supply used time, in order to ensure signal can do as usual between electric energy meter ontology and carrier module
Transmission, it is preferred that be equipped with transmitting terminal 12 in electric energy meter ontology 1, be correspondingly provided with receiving end 22, the receiving end in carrier module 2
22 with transmitting terminal 12 by coupling coil 3 be communicatively coupled namely such improvement under, using coupling coil 3 be used as transmitting terminal
The transmission channel of information between 12 and receiving end 22 is transmitted for information.The communication is single-phase communication, it is contemplated that carrier module 2 exists
It needs to be sent to electric energy meter ontology 1 after receiving the information of main website (not shown) feedback, is also set up in the carrier module 2
There is infrared transmission module 23, infrared receiving module 13, the infrared transmission module 23 are correspondingly arranged in the electric energy meter ontology 1
Infrared communication is carried out with infrared receiving module 13.
Specific to the present embodiment, the transmitting terminal 12 includes that power conversion module 121 and power conversion module 121 export
The first control chip 122 being separately connected and drive module 123 are held, the output end of the first control chip 122 connects driving
The output end of the control terminal of module 123, drive module 123 connects first coil 31.
Corresponding, the receiving end 22 includes the first reception chip 222, and the described first input terminal for receiving chip 222 connects
The second coil 32 is connect, the first coil 31 and the second coil 32 couple and form the coupling coil 3.
Whether information is transferred to receiving end or information via transmitting terminal and is transmitted to infrared connect by infrared transmission module 23
Module 13 is received, is required to parse to take corresponding operating information, therefore corresponding, is additionally provided in electric energy meter ontology 1
Meter MCU chip 14, the meter MCU chip 14 are electrically connected with the first control chip 122, infrared receiving module 13 simultaneously,
It is equipped with module MCU chip 24 in carrier module 2, which is electrically connected the first reception chip 222 and red simultaneously
Outer transmitting module 23.
When electric energy meter ontology 1 sends information to the main website of distal end, meter MCU chip 14 sends information to transmitting terminal 12
First control chip 122, first control chip 122 information is handled after be sent to drive module 123, drive module
123 transmit the data information to first coil 31 with PWM square, and first coil 31 generates alternating flux, the second coil
32 incude the variation, and couple the corresponding magnetic flux of generation, are transmitted to the first reception after also coupling the PWM square wave information in front
Chip 222, the first reception chip 222 are transmitted to module MCU chip 24, module MCU after carrying out dissection process to received information
Chip 24 carries out corresponding operating according to corresponding data information, for example interacts with main website, obtains master information etc..
The module MCU chip 24 that main website will be sent in carrier module 2 after information package, 24 pairs of module MCU chip letters
Breath is sent after being handled by infrared transmission module 23, at the same time the infrared receiving module 13 in electric energy meter body 1
The information is received, and received information is transmitted to meter MCU chip 14.Pass through coupling coil 3 and infrared hair as a result,
Penetrate/receiving module 24,14 between cooperation realize information communication interaction between electric energy meter and main website.
Referring to figs. 2 and 3 and Fig. 4, in the present embodiment, transmitting terminal 12 further includes the first filter circuit 125, drive module
123 current information flows into first coil 31 after the filtering of the first filter circuit 125.Equally, receiving end 22 further includes the second filter
The electric current of wave circuit 225, the outflow of the second coil 32 is conveyed to the first reception chip 222 after the filtering of the second filter circuit 225.It should
First filter circuit 125 is formed by the capacitor of multiple parallel connections.
Referring to figs. 5 and 6, the infrared transmission module 23 includes light emitting diode HL1 and control light emitting diode
First triode V2 of HL1 on-off；The infrared receiving module 13 is including photodiode BL1 and is controlled by photodiode
The second triode V1 of BL1, the first triode V2 are positive-negative-positive, and the second triode V1 is NPN type.
Please also refer to Fig. 2-Fig. 6, specific communication is as follows:
Alternating current carries out controlling chip 122 and simulation after AC-DC is converted into the first of transmitting terminal 2 through power conversion module 121
Front-end chip namely the drive module 123 power supply, the port 45 foot SCK and 44 foot SDA and table of the first control chip 122
It counts MCU module 14 and carries out data interaction, obtain signal of communication.In the present embodiment, since meter MCU module 14 is not this Shen
Key protection point please, and which kind of chip it is specially, and can be selected according to actual needs by those skilled in the art, such as be can be
FPGA is also possible to single-chip microcontroller, and in order to carry out data interaction, the correspondence signal end of meter MCU module 14 and first are controlled
The correspondence signal end connection communication of chip 122, here it is 45 foot SCK and 44 foot SDA that chip 122 is controlled with first to be connected to,
It is the conventional technical means that those skilled in the art know, therefore no longer enumerates and carefully state herein.
40 foot of port of first control chip 122 and 13 feet and 14 of 41 feet and analog front-end chip, that is, drive module 123
Foot is separately connected, by communication signal transmissions to analog front-end chip, that is, drive module 123, analog front-end chip by signal of communication with
PWM square wave is coupled to first coil 31, and the second coil 32 obtains the PWM square wave signal of communication by coupling with first coil 14,
It is then transferred to the first reception chip 222, the 16 foot SCL and 15 foot SDA of the first reception chip 222 are connected to module MCU chip,
To which the data for realizing meter to module are transmitted.Equally, it herein due to the not this Applicant's Abstract graph emphasis of module MCU chip, and specifically adopts
With which kind of MCU chip, it is that those skilled in the art can carry out selection according to actual needs, so also do not repeat herein.
It is filtered before the signal of communication input first coil 31 of transmitting terminal 12 by capacitor C4, C5, C6, C7, with filter
Except signal impurity, the second coil 32 of receiving end 22 first transmits signal of communication after capacitor C14, C15, C18 are further filtered
Chip 222 is received to first.
When main website sends information to meter, carrier module 2 is interacted by infrared communication with electric energy meter ontology 1, is had
Body, as shown in FIG. 5 and 6, infrared transmission module 23 includes light emitting diode HL1 and leads to for controlling light emitting diode HL1
The first disconnected triode V2, the first triode V2 uses positive-negative-positive here；Specifically, the cathode of light emitting diode HL1 is grounded, just
Pole is connect by resistance R6 in parallel with R7 with the collector of the first triode V2, and the emitter of the first triode V2 connects high level
V-IR, base stage connect letter signal input part IR-TXD1, could be aware that, the signal of input terminal IR-TXD1 comes from mould herein
Block MCU chip 24.Infrared receiving module 13 includes photodiode BL1 and is controlled by photodiode BL1 and be used to export
Second triode V1 of level signal, the second triode V1 uses NPN type here, and the on-off of photodiode BL1 is by luminous two
Pole pipe HL1 control；Specifically, the cathode of photodiode BL1 meets high level V-IR, anode passes through resistance R1 and the second triode
The base stage of V1 connects, and the base stage of the second triode V1 also passes through resistance R4 and is grounded, and the collector of the second triode V1 passes through resistance
R2 is connect with high level V-IR, emitter ground connection；Signal of communication output IR-RXD1 is connect with the collector of the second triode V1,
Similarly, output end IR-RXD1 exports signal to meter MCU chip 14.
When the signal of communication input terminal IR-TXD1 at infrared emission end 23 exports low level, the first triode V2 conducting, hair
Optical diode HL1 conducting shines, and the photodiode BL1 at infrared receiver end is connected by HL1 illumination, causes the second triode V1
Conducting, such communication information just can be transmitted to meter MCU chip 14 by output end IR-RXD1, to complete information exchange behaviour
Make.
Other than above-mentioned improvement, other similar improvement are also contained in the improvement threshold of the utility model, herein
It is not repeating.While there has been shown and described that the embodiments of the present invention, it will be appreciated by those skilled in the art that: it is not taking off
These embodiments can be carried out with a variety of variations, modification, replacement and deformation in the case where from the principles of the present invention and objective,
The scope of the utility model is defined by the claims and their equivalents.
Claims (8)
1. a kind of improved electric energy meter, including,
Electric energy meter ontology (1), setting transmitting terminal (12) and table body is equipped with I/O port (11) in the electric energy meter ontology (1)；
Carrier module (2), the carrier module (2) are equipped with the port (21) being connected to the I/O port (11) grafting and the load
It is set and the transmitting terminal (12) matched receiving end (22) in wave module (2)；
It is characterized by:
The I/O port (11) and port (21) cooperation for carrier module (2) for powering, the receiving end (22) and transmitting terminal
(12) information transmission is carried out by coupling coil (3)；
It is additionally provided with infrared transmission module (23), is correspondingly arranged in the electric energy meter ontology (1) red in the carrier module (2)
Outer receiving module (13), the infrared transmission module (23) and infrared receiving module (13) carry out infrared communication.
2. electric energy meter according to claim 1, it is characterised in that:
The transmitting terminal (12) includes power conversion module (121), be separately connected with power conversion module (121) output end the
The output end of one control chip (122) and drive module (123), first control chip (122) connects drive module (123)
Control terminal, output end connection first coil (31) of the drive module (123) and output pwm signal is to first coil
(31)；
The receiving end (22) includes the first reception chip (222), and described first, which receives chip (222) input terminal, connects the second line
It encloses (32)；
The first coil (31) and second coil (32) form the coupling coil (3), the second coil (32) coupling
First coil (31) are closed to obtain signal waveform and be conveyed to the first reception chip (222).
3. electric energy meter according to claim 2, it is characterised in that:
The electric energy meter ontology (1) further includes the meter MCU chip (14) connecting with the first control chip (122), described infrared
Receiving module (13) is connected with the meter MCU chip (14)；
The carrier module (2) further includes receiving the module MCU chip (24) that chip (222) are connect, the infrared hair with first
Module (23) is penetrated to be connected with the module MCU chip (24).
4. electric energy meter according to claim 2, it is characterised in that:
The first filter circuit (125) are additionally provided between drive module (123) output end and first coil (31).
5. electric energy meter according to claim 2, it is characterised in that:
The second filter circuit (225) are provided between first reception chip (222) and the second coil (32).
6. electric energy meter according to claim 4, it is characterised in that:
First filter circuit (125) is formed by the capacitor of multiple parallel connections.
7. electric energy meter according to claim 1, it is characterised in that:
The infrared transmission module (23) includes the first of light emitting diode (HL1) and control light emitting diode (HL1) on-off
Triode (V2)；
The infrared receiving module (13) includes photodiode (BL1) and is controlled by the 2nd 3 of photodiode (BL1)
Pole pipe (V1).
8. electric energy meter according to claim 7, it is characterised in that:
First triode (V2) is positive-negative-positive, and second triode (V1) is NPN type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779510.3U CN209103511U (en) | 2018-10-31 | 2018-10-31 | A kind of improved electric energy meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821779510.3U CN209103511U (en) | 2018-10-31 | 2018-10-31 | A kind of improved electric energy meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209103511U true CN209103511U (en) | 2019-07-12 |
Family
ID=67157430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821779510.3U Active CN209103511U (en) | 2018-10-31 | 2018-10-31 | A kind of improved electric energy meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209103511U (en) |
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2018
- 2018-10-31 CN CN201821779510.3U patent/CN209103511U/en active Active
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