CN211478411U - Thing networking ammeter - Google Patents

Abstract

The utility model relates to a thing networking ammeter, thing networking ammeter contain electric energy detection module, WIFI module, GPS module, relay module, embedded processor module and thing networking platform, and above-mentioned circuit module adopts components and parts simple, the cost is lower, and thing networking platform is nimble stable. Through the cooperation of the modules of the parts, the monitoring on the electric energy data, the temperature and the geographic information can be completed, the data are uploaded to the Internet of things platform, and the remote control on the electric meter is completed by receiving a control instruction from the Internet of things platform.

Description

Thing networking ammeter

Technical Field

The utility model relates to a thing networking ammeter that contains electric energy detection module, WIFI module, GPS module, relay module, embedded processor module and thing networking platform.

Background

The Internet of things ammeter can monitor voltage, current, energy, power factor, active power, reactive power, frequency, temperature and geographical position information in an electric power system, can display electric energy, temperature and geographical position data on an equipment screen, and simultaneously sends monitoring data to the Internet of things platform, so that remote monitoring of the state of the ammeter and remote meter reading of the electric energy data can be completed through the Internet of things platform. The Internet of things electric meter has the functions of remote monitoring and remote meter reading and also has the function of remote control, such as remote power off and power supply. The Internet of things ammeter can replace a traditional ammeter with a single function, and is mainly applied to automatic meter reading, distributed power source remote monitoring and transformer substation remote monitoring systems.

The traditional electric meter is limited in that flexible remote meter reading cannot be realized by a physical structure and a measuring mode, remote control of power supply and power failure cannot be realized, and monitoring work of a distributed power supply cannot be adapted.

Disclosure of Invention

The utility model aims at providing a contain electric energy detection module, WIFI module, GPS module, relay module, embedded processor module and thing networking platform's thing networking ammeter to the not enough of current traditional ammeter existence.

In order to achieve the above purpose, the present invention includes the following technical solutions.

The first circuit scheme is as follows: this scheme has an electric energy detection module, including mutual-inductor and electric energy measurement chip, the side access electric wire netting of mutual-inductor, the mutual-inductor secondary side is voltage signal through resistance with current signal conversion, voltage signal passes through the access of signal processing circuit electric energy measurement chip signal input part, electric energy measurement chip is connected with embedded processor module through the SPI interface, and this electric energy measurement chip can pass through external pulse pin output pulse signal simultaneously to this instructs simple power consumption. The main devices of the electric energy detection module are an electric energy metering chip and a plurality of capacitance resistors, the number of related components is small, precise detection devices are not related, the structure is simple, and the cost is low.

The second circuit scheme is as follows: on the basis of the first circuit scheme, the data output end of the electric energy metering module is connected to the embedded processor module through the SPI interface, and the embedded processor module processes the electric energy data transmitted by the electric energy detection module. The main devices of the embedded processor module are an embedded chip and a plurality of peripheral devices.

The third circuit scheme is as follows: on the basis of the second circuit scheme, the data output end of the GPS module is connected to the embedded processor module through the UART interface, and the embedded processor module processes the geographic position data transmitted by the GPS module. The main devices of the GPS module are a GPS chip and a plurality of peripheral devices.

The circuit scheme is four: on the basis of the circuit scheme I, the circuit scheme II and the circuit scheme III, data processed by the embedded processor module are uploaded to the Internet of things platform through the WIFI module, the Internet of things platform is connected with an Internet of things ammeter through a communication protocol to guarantee stability and accuracy of the data, and the communication protocol is jointly determined by the Internet of things platform and the embedded processor module. The main devices of the WIFI module are a WIFI chip and a plurality of peripheral devices.

The circuit scheme five: on the basis of the first, second, third and fourth circuit schemes, the embedded processor module can control the on and off of the relay module, and the relay module comprises a relay and a driving circuit.

The circuit scheme six: on the basis of the circuit schemes of the first, second, third, fourth and fifth, the electric energy metering chip is ATT7022B, the GPS chip is ATGM336H, the relay is JXQ-38F, the embedded chip is STM32F103ZET6, the WIFI chip is ESP8066, and the Internet of things platform is ONENET.

Drawings

FIG. 1 is a schematic diagram of a power detection module.

Fig. 2 is a schematic diagram of a WIFI module.

Fig. 3 is a GPS module schematic.

Fig. 4 is a circuit diagram of the whole system.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for better illustration of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; some well-known structures in the drawings and descriptions thereof may be omitted but may be understood by those skilled in the art.

As shown in fig. 1, the power detection module includes transformers and a power metering chip, the transformers correspond to T1, T2, T3, T4, T5 and T6 in the figure, and the power metering chip corresponds to U1 in the figure, as a specific embodiment, the transformers T1, T2 and T3 are current type voltage transformers of 2mA/2mA, the transformers T4, T5 and T6 are current transformers of 25A/5mA, and the power metering chip U1 is ATT7022B in specification. The current signals output by the current type voltage transformers T1, T2 and T3 are converted into voltage signals through resistors and are connected to the voltage signal input end of the electric energy metering chip U1. The current signals output by the current transformers T4, T5 and T6 are converted into voltage signals through resistors and are connected to the current signal input end of the electric energy metering chip U1. Current signals output by the current type voltage transformer are converted into voltage signals through 470 omega resistors R1, R2 and R3, and meanwhile the resistors are connected with 0.01uF capacitors C1, C2 and C3 in parallel to ensure that output signals meet the signal input requirements of the metering chip. The output signals of the current transformers T4, T5 and T6 are input to the current signal input end of the electric energy metering chip through the same processing as the voltage transformer signals, and only a slight difference exists in the way of connecting the voltage transformers and the current transformers to the circuit, so that the independent description is not provided here, and the partial circuit is included in fig. 1. The electric energy metering chip is connected with the embedded processor module through the SPI interface.

As shown in fig. 2, the WIFI module includes a WIFI chip ESP8266 and necessary peripheral devices thereof, and is connected to the embedded processor module through a UART interface, and the embedded processor module is connected to the internet of things platform through the ESP 8266.

As shown in fig. 3, the GPS module includes a GPS chip ATGM336H and its necessary peripheral devices, and is connected to the embedded processor module through a UART interface, and the embedded processor module is connected to a GPS satellite through ATGM336H to acquire geographical location information.

As shown in fig. 4, embedded processor module contains embedded chip STM32F103ZET6, and this embedded processor module is connected with the measurement chip through the SPI interface, is connected with WIFI module and GPS module through the UART interface, is connected with relay module through GPIO.

The relay module comprises a relay JXQ-38F, is connected with the embedded chip through a GPIO (general purpose input/output), and realizes switching operation according to the high and low levels of the GPIO.

The Internet of things platform can receive and show voltage, current, frequency, electric energy, power factor, temperature, active power, idle work, GPS information, can select to show different data according to the demand to the Internet of things platform has control button, can issue the controlled variable to the Internet of things ammeter in order to accomplish the remote control of ammeter through the network.

Claims (7)

1. The utility model provides a thing networking ammeter, its characterized in that contains electric energy collection module, GPS module, WIFI module, embedded processor module and thing networking platform, collection module contains mutual-inductor and electric energy measurement chip, the GPS module contains GPS chip and peripheral device, the WIFI module contains WIFI chip and peripheral device, embedded processor module contains embedded chip and peripheral device, thing networking platform has the storage, show, the processing function of data.

2. The internet-of-things electricity meter of claim 1, wherein the electric energy collection module adopts an ATT7022B chip, collects voltage and current signals through a mutual inductor, and comprises a series of peripheral devices for processing the signals to enable the signals to meet the requirements of the chip.

3. The internet of things electric meter of claim 1, wherein the GPS module is an ATGM336H chip, and the GPS module is connected to the embedded processor module by a UART interface to transmit the geographical location information to the embedded processor.

4. The internet-of-things ammeter of claim 1, wherein the WIFI module is an ESP8266 chip, and the WIFI module is connected with the embedded processor module through a UART interface, and uploads data of the embedded processor to the internet-of-things platform, and simultaneously transmits a control instruction of the internet-of-things platform to the embedded processor.

5. The internet of things electric meter according to claim 1, wherein the relay module adopts JXQ-38F, and can be used for switching on and off a line according to an instruction of the embedded processor.

6. The internet of things electricity meter of claim 1, wherein the embedded processor module adopts an STM32F103ZET6 embedded chip, and has rich interfaces and strong computing power.

7. The Internet of things ammeter of claim 1 wherein the Internet of things platform is ONENET, has data storage and display functions, and can issue control quantities to accomplish remote control.

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