1. A novel intelligent electric meter based on a wireless micro-current carbon label is characterized by comprising an intelligent electric meter (1), wherein an MCU (2), a sampling module (3), a wireless communication module (4), a capacitive load (5), an auxiliary power supply (6), a current coding controller (7), a switch (8), an intelligent electric meter incoming line (9), an intelligent electric meter outgoing line (10) and carbon label data (11) are arranged in the intelligent electric meter (1);

MCU (2) is connected with current coding controller (7) and constitutes the coding return circuit, wireless communication module (4) are connected with the software platform and are used for delimiting ammeter regional scope and with new carbon label data (11), current sampling module (3) link to each other with electric energy meter inlet wire (9), capacitive load (5), auxiliary power module (6), switch SW1 (8) and smart electric meter inlet wire (9) link to each other and constitute series circuit, carbon label data (11) get into smart electric meter from smart electric meter inlet wire (9), export smart electric meter from smart electric meter (10).

2. The novel intelligent electric meter based on the wireless micro-current carbon label as claimed in claim 1, wherein the carbon label data (11) comprises a total electric quantity (12), a photovoltaic power generation electric quantity ratio (13), a wind power generation electric quantity ratio (14), a hydraulic power generation electric quantity ratio (15), a nuclear power generation electric quantity ratio (16), a carbon label source area (17) and a carbon label sending area (18).

3. The novel smart meter based on wireless microcurrent carbon label as claimed in claim 1, wherein said MCU (2) is of no on-chip ROM type and with on-chip ROM type.

4. The novel smart electric meter based on the wireless micro-current carbon label as claimed in claim 1, wherein the sampling module (3) comprises a band-pass filter (19), a full-wave rectifier (20), a low-pass filter (21) and a current transformer (22) which are connected in sequence.

5. The novel smart meter based on the wireless micro-current carbon tag as claimed in claim 4, wherein the current transformer (22) is one of an electromagnetic current transformer, an electronic current transformer, a photoelectric current transformer, a passive current transformer and an active current transformer, and has a measurable harmonic range of 0-5000 Hz and a measurement accuracy of 0.05%.

6. The novel intelligent electric meter based on the wireless micro-current carbon label as claimed in claim 1, wherein the wireless communication module (4) comprises a GSM/GPRS module SIM300, the GSM/GPRS module SIM300 is connected with the MCU (2) through a serial port, and the GSM/GPRS module SIM300 is further connected with the SIM card through a board-level connector.

7. The novel smart meter based on wireless microcurrent carbon labels according to claim 1 or 2 or 6, wherein said MCU (2) is model MSP430f 155.

Background

The construction of the comprehensive energy system is an important way for promoting the consumption of clean energy, enhancing the cascade utilization of energy, improving the use efficiency of energy and realizing the coordinated operation of various forms of energy. The basic method for calculating carbon emission is as follows: emissions amounts are equal to the product of an emissions factor and an activity level, where the range of emissions factor choices includes national emissions factors and IPCC default emissions factors, tool models, or other complex measurement methods. In the process of using energy and energy of power consumers, the carbon emission calculation mode adopts the provincial average value as a carbon emission factor, the energy consumption composition difference of garden users is not considered, and the error exists in the carbon emission calculation result, so that the energy source tracing of the user electric energy is required. The electric energy meter is an important device for realizing the definition of an electric energy structure as a statistical unit of an electric energy bottom layer, the common electric energy meter is used for counting the use electric quantity of a user and the internet electric quantity of a power generator, but the user cannot clearly observe the proportion of clean energy of the accessed electric energy.

Disclosure of Invention

The invention provides a novel intelligent ammeter based on a wireless micro-current carbon label, aiming at overcoming the problem of low calculation accuracy of electric energy carbon emission in the prior art, and providing accurate data support for carbon emission indexes.

In order to achieve the purpose, the invention adopts the following technical scheme:

a novel intelligent ammeter based on a wireless micro-current carbon label comprises an intelligent ammeter, wherein an MCU, a sampling module, a wireless communication module, a capacitive load, an auxiliary power supply, a current coding controller, a switch, an intelligent ammeter incoming line, an intelligent ammeter outgoing line and carbon label data are arranged in the intelligent ammeter;

MCU is connected with current encoding controller and constitutes the coding return circuit, and wireless communication module is connected with the software platform and is used for delimiting ammeter regional scope and links to each other with new carbon label data, and current sampling module links to each other with the electric energy meter inlet wire, and capacitive load, auxiliary power module, switch SW1 and smart electric meter inlet wire link to each other and constitute series circuit, and carbon label data gets into smart electric meter from the smart electric meter inlet wire, exports smart electric meter from the smart electric meter is qualified for the next round of competitions.

According to the invention, a chip micro-current carbon label module is implanted into the intelligent electric meter of each tidal current gateway, a carbon label signal is added into the current flowing through the intelligent electric meter, the total electric quantity, various energy proportion information, a label source area and a sending area are recorded in the carbon label data, then the carbon label data are coded into the current signal through a current coder and are injected into the current flowing through the intelligent electric meter to be transmitted to the next area, the next area reintegrates and calculates the energy proportion of the outlet of the current signal according to the carbon labels received by each branch, then the updated carbon label is transmitted to the next level, and so on, the area of each level can obtain the energy proportion of the electric energy accessed to the area.

Preferably, the carbon label data includes a total electric quantity, a photovoltaic power generation electric quantity ratio, a wind power generation electric quantity ratio, a hydraulic power generation electric quantity ratio, a nuclear power generation electric quantity ratio, a carbon label source area and a carbon label transmitting area.

Preferably, the MCU is of the off-chip ROM type or the in-band ROM type.

The micro control unit MCU obtains the user power consumption measured by the intelligent ammeter by reading data in the intelligent ammeter, simultaneously realizes decoding of the carbon label in the circuit by communicating with the current sampling module, obtains the carbon label to be sent by calculation, and communicates the carbon label with the current coding controller after being coded.

The current coding controller codes the updated carbon label information according to the signals sent by the micro control unit, the label coding is realized by controlling the on-off of the circuit through the auxiliary power supply, the capacitive load and the switch SW1, the carbon label signals are converted into current signals (the current amplitude is in mA level), and the carbon label codes are sent to the next gateway through the outgoing line of the electric meter.

The wireless communication module defines the regional range of the ammeter through communication with the software platform, transmits the carbon label of the ammeter to the background, and the software background calculates the energy mean value of the region and then transmits the energy mean value to the ammeter in the region, so that the carbon label proportion is updated.

Preferably, the sampling module comprises a band-pass filter, a full-wave rectifier, a low-pass filter and a current transformer which are connected in sequence.

The signal passes through a band-pass filter to filter a direct current signal, then all signals below a negative shaft are turned over through a full-wave rectifier, then the signal higher than a threshold frequency is filtered through a low-pass filter, and finally sampling is carried out to judge whether the data is a signal 0 or 1, so that the identification of the signal is realized.

Preferably, the current transformer is one of an electromagnetic current transformer, an electronic current transformer, a photoelectric current transformer, a passive current transformer and an active current transformer, the range of the measurable harmonic wave is 0-5000 Hz, and the measurement accuracy is 0.05%.

Preferably, the wireless communication module includes a GSM/GPRS module SIM300, the GSM/GPRS module SIM300 is connected to the MCU through a serial port, and the GSM/GPRS module SIM300 is further connected to the SIM card through a board-level connector.

The wireless communication module comprises a 2G network, a 3G network, a 4G network, a 5G network, a Wifi module, a Bluetooth module, Zigbee and Lora.

The current modulation modes include ASK, FSK, and PSK.

The switch comprises a diode, an IGBT, a MOSFET and a transformer.

Preferably, the MCU model is MSP430f 155.

Therefore, the invention has the following beneficial effects:

1. according to the method, the carbon label signal is added to the current signal flowing through the intelligent ammeter, and the proportion of different energy sources in the electric quantity flowing through the intelligent ammeter is recorded, so that the carbon emission capacity of the electric energy consumption is accurately calculated, the regional accuracy of the electric energy carbon emission calculation is improved, and the calculation and evaluation of the consumption capacity of renewable energy sources, the information monitoring of the whole process of new energy sources and decision support services are provided; 2. and providing information service and related data support service in the aspects of new energy project grid connection, power generation cost estimation and the like for power generation enterprises.

Drawings

Fig. 1 is a block diagram of the structure of the present embodiment.

Fig. 2 is a schematic diagram of the carbon label data format of the present embodiment.

Fig. 3 is a block diagram of the sampling module according to the present embodiment.

Fig. 4 is a schematic diagram of the auxiliary power supply +5V power supply generation circuit of the present embodiment.

Fig. 5 is a schematic diagram of the auxiliary power supply-5V power supply generation in the present embodiment.

Fig. 6 is a schematic diagram of the ± 15V voltage generation circuit of the present embodiment.

Fig. 7 is a schematic circuit diagram of the sampling module according to the present embodiment.

Fig. 8 is a schematic circuit diagram of the wireless communication module according to the present embodiment.

In the figure: 1. the intelligent electric meter comprises an intelligent electric meter 2, a micro control unit 3, a sampling module 4, a wireless communication module 5, a capacitive load 6, an auxiliary power supply 7, a current coding controller 8, a switch 9, an intelligent electric meter incoming line 10, an intelligent electric meter outgoing line 11, carbon label data 12, total electric quantity 13, photovoltaic power generation electric quantity proportion 14, wind power generation electric quantity proportion 15, hydraulic power generation electric quantity proportion 16, nuclear power generation electric quantity proportion 17, a carbon label source area 18, a carbon label transmitting area 19, a band-pass filter 20, a full-wave rectifier 21, a low-pass filter 22 and a current transformer.

Detailed Description

The invention is further described with reference to the following detailed description and accompanying drawings.

Example 1:

the embodiment provides a novel intelligent electric meter based on a wireless micro-current carbon label, and for example, as shown in fig. 1, a micro control unit 2, a sampling module 3, a wireless communication module 4, a capacitive load 5, an auxiliary power supply 6, a current encoding controller 7, a switch 8, an intelligent electric meter incoming line 9, an intelligent electric meter outgoing line 10 and carbon label data 11 are arranged in an intelligent electric meter (1); the model of the MCU2 is MSP430f 155; MCU is connected with current encoding controller and constitutes the coding return circuit, and wireless communication module is connected with the software platform and is used for delimiting ammeter regional scope and links to each other with new carbon label data, and current sampling module links to each other with the electric energy meter inlet wire, and capacitive load, auxiliary power module, switch SW1 and smart electric meter inlet wire link to each other and constitute series circuit, and carbon label data gets into smart electric meter from the smart electric meter inlet wire, exports smart electric meter from the smart electric meter is qualified for the next round of competitions.

The micro control unit MCU obtains the user power consumption measured by the intelligent ammeter by reading data in the intelligent ammeter, simultaneously realizes decoding of the carbon label in the circuit by communicating with the current sampling module, obtains the carbon label to be sent by calculation, and communicates the carbon label with the current coding controller after being coded.

The current coding controller codes the updated carbon label information according to the signals sent by the micro control unit, the label coding is realized by controlling the on-off of the circuit through the auxiliary power supply, the capacitive load and the switch SW1, the carbon label signals are converted into current signals (the current amplitude is in mA level), and the carbon label codes are sent to the next gateway through the outgoing line of the electric meter.

The wireless communication module defines the regional range of the ammeter through communication with the software platform, transmits the carbon label of the ammeter to the background, and the software background calculates the energy mean value of the region and then transmits the energy mean value to the ammeter in the region, so that the carbon label proportion is updated.

As shown in fig. 2, the carbon label data includes a total electric quantity 12, a photovoltaic power generation electric quantity ratio 13, a wind power generation electric quantity ratio 14, a hydraulic power generation electric quantity ratio 15, a nuclear power generation electric quantity ratio 16, a carbon label source area 17, and a carbon label transmission area 18.

As shown in fig. 3, the sampling module 3 includes a band-pass filter 19, a full-wave rectifier 20, a low-pass filter 21 and a current transformer 22 which are connected in sequence, the current transformer can measure a harmonic range of 0-5000 Hz, and the measurement accuracy is 0.05%, the invention realizes quantitative monitoring of the power generation source composition of the electric energy flowing into the gateway electric meter, thereby making the carbon emission calculation of different point regions more accurate, facilitating the planning of different energy sources more finely in the carbon peak reaching, carbon neutralizing and process, and providing important data support for the carbon emission calculation of the electricity user, facilitating the provision of a customized carbon reduction route for the user in the later stage, and accelerating the carbon peak reaching process.

The 24V voltage of the auxiliary power supply 6 is directly provided by adopting a switching power supply, and other power supplies needing power supply are mainly divided into +5V, -5V and +/-15V power supply circuits.

As shown in fig. 4, the +5V power supply in the system is powered by an LM2576 power chip U6, the input dc voltage of the power chip U6 is 8-40V, the output dc voltage is 4.8-5.2V, the output power is 15W, and the output voltage is stable; after being rectified by a rectifier bridge consisting of a diode D9, a diode D10, a diode D14 and a diode D15, 24V alternating current is regulated by a capacitor C36 and then input into an LM2576 power supply chip U6, the output end of the LM2576 power supply chip U6 is regulated by a 5V voltage regulator tube D1, and then the capacitor C38 and an inductor L1 form a filter circuit to filter a small amount of ripples in the output voltage.

As shown in FIG. 5, the-5V power supply in the system adopts a voltage conversion chip U7, model number ICL7660, to directly convert the +5V voltage into-5V voltage.

As shown in fig. 6, the voltage of ± 15V in the system is generated by using a WRA0515YMD power module U16, the voltage of +5V is converted into voltage of ± 15V, the maximum output power of the power module is 3W, and the main function is to supply power to the hall sensor in the sampling conditioning circuit, so that the sampling module can normally operate.

As shown in fig. 7, the sampling module comprises a ZMPT101B voltage transformer U22 and a ZMCT101B current transformer U18, and the sampled voltage and current passes through an LM358 voltage follower U21 and then flows into an LM324 second-order low-pass filter U20 to filter out higher harmonics in the signal.

As shown in fig. 8, the wireless communication module is a triple-frequency GSM/GPRS module SIM300 produced by SIMCOM corporation, the SIM300 is connected to the MSP430f155 microprocessor through a serial port, and is connected to the SIM card through a board-level connector, and a TCP/IP protocol stack embedded in the module can conveniently implement seamless connection between the measurement system and the internet.

The working process of the invention is as follows: according to the invention, a carbon label signal is added into current flowing through the intelligent ammeter, total electric quantity, various energy ratio information, a label source area and a sending area are recorded in carbon label data, then the carbon label data are coded into the current signal through a current coder and are injected into the current flowing through the intelligent ammeter to be transmitted to the next area, the next area respectively integrates and calculates the energy ratio of an outlet of the current signal according to the carbon labels received by each branch, then the updated carbon label is transmitted to the next level, and by analogy, the area of each level can obtain the energy ratio of the electric energy accessed to the area.

The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.