CN210574286U

CN210574286U - Join in marriage electrical room thing networking gateway

Info

Publication number: CN210574286U
Application number: CN201921584496.6U
Authority: CN
Inventors: 江克宜
Original assignee: Shenzhen Shen Electric Energy Electric Sale Co ltd
Current assignee: Shenzhen Electric Energy Technology Group Co.,Ltd.
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-05-19
Anticipated expiration: 2029-09-23

Abstract

The utility model discloses a power distribution room internet of things gateway, which comprises a data acquisition unit and a data communication unit, wherein the data acquisition unit comprises a main control module, a PLC communication module and a Bluetooth 5 module; the data communication unit comprises a PLC concentrator, an Ethernet module and a 4G module; the master control module is in signal connection with a smoke sensor, a water sensor, a temperature and humidity sensor, a temperature controller and a metering ammeter through the Bluetooth 5 module; the master control module is in signal connection with the PLC concentrator through a PLC communication module, and the PLC concentrator is in signal connection with the Ethernet module and the 4G module; according to the scheme, through the improvement on the data acquisition mode of the sensor and the improvement on the uploading mode of the gateway, the field construction difficulty is greatly reduced, and the data acquisition success rate and the data uploading success rate under the severe environment are improved.

Description

Join in marriage electrical room thing networking gateway

Technical Field

The utility model relates to a technical field of the thing networking specifically is a join in marriage electrical room thing networking gateway.

Background

The power distribution room is a key link for guaranteeing the reliability of power utilization of users. With the development of the internet of things technology, the online monitoring and control of the power distribution equipment and the operating environment thereof in the power distribution room are more and more widely applied. Because online monitoring points are relatively dispersed and electromagnetic environment interference is large, how to realize low-cost access to various online monitoring sensors is a problem to be solved urgently.

At present, the internet of things gateway of the power distribution room generally adopts the following modes to access an online monitoring sensor:

(1) the 485 bus mode, that is, the sensor data is transmitted to the gateway through the 485 cable, is stable and reliable, but has the defects of difficult construction and high cost, and the wiring is very difficult or even impossible to realize under certain environments.

(2) And small wireless modes, such as FSK and ASK schemes. The transmission distance of the two modes is long, but the working frequency band is in the 315M and 433M frequency bands, so that the two modes are easily interfered and have high power consumption, and therefore the two modes are rarely used for industrial application.

(3) The Power Line Carrier (PLC) method, that is, the sensor data is accessed through the power line carrier, which can solve the problem of no wiring and signal through-wall, but the PLC is complicated in cross-transformer communication, and a plurality of transformers are usually provided in the power distribution room, so that a plurality of PLC concentrators may be required to be configured, thereby increasing the communication cost.

In addition, because the environments of the power distribution room are also various, for example, in a basement, independent of an office area and a living area, the communication between the internet of things gateway of the power distribution room and a background system is difficult, and if the gateway only supports ethernet or 4G communication, the problem of reliable communication may be encountered in practical application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a join in marriage electrical room thing networking gateway to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a power distribution room Internet of things gateway comprises a data acquisition unit and a data communication unit, wherein the data acquisition unit comprises a main control module, a PLC communication module and a Bluetooth 5 module;

the data communication unit comprises a PLC concentrator, an Ethernet module and a 4G module;

the master control module is in signal connection with a smoke sensor, a water sensor, a temperature and humidity sensor, a temperature controller and a metering ammeter through the Bluetooth 5 module;

the master control module is in signal connection with the PLC concentrator through a PLC communication module, and the PLC concentrator is in signal connection with the Ethernet module and the 4G module.

Preferably, the main control module adopts a Freescalei.MX6Q dual-core processor (core processor)

Figure DEST_PATH_RE-GDA0002433341450000021

Cortex^TM-a9 kernel, master frequency 1GHz), DDRIII 1066MHZ (1G memory), 4G-FLASH memory core board.

Preferably, the bluetooth 5 module adopts a bluetooth chip CC2640R2F of Ti, works in a 2.4GISM frequency band, is GFSK modulated, adopts FHSS frequency hopping technology, has strong anti-interference capability, has a communication distance of up to 300 meters, can also extend the communication distance by means of mesh networking, and has a networking node number of 200-500.

Preferably, the PLC communication module adopts an ARDCM broadband PLC module, so that the interference resistance is strong, the data rate can reach 2Mbps, the single hop can reach 1km, and the 15-level relay is adopted.

Preferably, the data communication unit and the data acquisition unit are located in the same power transformer range.

Compared with the prior art, the beneficial effects of the utility model are that:

1. according to the scheme, through the improvement on the data acquisition mode of the sensor and the improvement on the uploading mode of the gateway, the field construction difficulty is greatly reduced, and the data acquisition success rate and the data uploading success rate under the severe environment are improved. The concrete expression is as follows:

2. the Bluetooth 5 protocol is adopted to transmit the sensor data, and a communication cable does not need to be laid during field construction, so that the raw material cost and the construction cost are greatly saved;

3. the Bluetooth technology is the most widely applied and mature technology in the wireless transmission technology, and the Bluetooth protocol is adopted by more than 1/3 of all wireless products in the world. The communication of 5 agreements of bluetooth is reliable, and the interference killing feature is strong, can also make transmission distance farther through the mode of mesh network deployment, even inside the equipment case of installation, cable pit bottom, gateway can both reliably receive data. Because the Bluetooth 5 communication electrode saves electricity, the sensors are all powered by batteries, and can continuously work for more than 2 years without maintenance.

4. The PLC communication mode is adopted to realize that the gateway data is firstly transmitted to the PLC concentrator and then is uploaded to the background server by the concentrator, so that the problem that the data can be reliably uploaded under the conditions that the installation position of the gateway has no wired broadband and the 4G signal is not good is solved. The method can be suitable for various power distribution room communication conditions, and the success rate of data uploading is guaranteed.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of a data acquisition unit main control module circuit;

FIG. 3 is a schematic circuit diagram of a PLC communication module;

FIG. 4 is a schematic circuit diagram of a PLC concentrator for a data communications unit;

FIG. 5 is a schematic circuit diagram of an Ethernet module;

FIG. 6 is a circuit schematic of a 4G module;

FIG. 7 is a schematic diagram of a 5V power module circuit;

FIG. 8 is a schematic diagram of a 1.34V power supply module;

fig. 9 power module 3.3V circuit schematic.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.

The same reference numbers in different drawings identify the same or similar elements; it should be further understood that terms such as "first," "second," "third," "upper," "lower," "front," "rear," "inner," "outer," "end," "portion," "section," "width," "thickness," "zone," and the like, may be used solely for convenience in reference to the figures and to aid in describing the invention, and are not intended to limit the invention.

Referring to fig. 1, the present invention provides a technical solution: a power distribution room Internet of things gateway comprises a data acquisition unit and a data communication unit, wherein the data acquisition unit comprises a main control module, a PLC communication module and a Bluetooth 5 module;

the main control module is in signal connection with a smoke sensor, a water immersion sensor, a temperature and humidity sensor, a temperature controller and a metering ammeter through a Bluetooth 5 module;

the main control module is in signal connection with the PLC concentrator through the PLC communication module, and the PLC concentrator is in signal connection with the Ethernet module and the 4G module.

As shown in fig. 2, the main control module is a core part of the internet of things gateway, and mainly realizes centralized acquisition of sensor data and communication with the PLC communication module through the bluetooth 5 module. Freescalei.MX6Q dual-core processor (core processor)

Figure DEST_PATH_RE-GDA0002433341450000041

As shown in fig. 2, the intelligent water meter is mainly responsible for accessing data collected by a smoke sensor, a water sensor, a temperature and humidity sensor, a temperature controller, a metering ammeter and the like. The Bluetooth chip CC2640R2F adopting Ti works in a 2.4GISM frequency band, is GFSK modulation, adopts FHSS frequency hopping technology, has strong anti-interference capability, has the maximum communication distance of 300 meters, can prolong the communication distance in a mesh networking mode, and has the networking node number of 200-500. Another advantage of bluetooth 5 is that it is very power efficient, with a battery life of up to 2 years.

As shown in fig. 3, the PLC communication module is used to communicate with the PLC concentrator and transmit the sensor data of the power distribution room to the concentrator. The PLC communication module adopts an Huashi ARDCM broadband PLC module, the interference resistance is strong, the data rate can reach 2Mbps, the single hop is 1km, and the 15-level relay is realized.

The data communication unit is arranged in a place with good communication conditions (good 4G signals or wired broadband), and is in the same range of the power transformer with the data acquisition unit. The data communication unit mainly comprises a PLC concentrator, an Ethernet module and a 4G module.

As shown in fig. 4, the PLC concentrator: the PLC communication module is used for communicating with the PLC communication module, receiving sensor data and sending instructions to the PLC communication module.

As shown in fig. 5, the ethernet module: for communicating with the server using ethernet when wired broadband is available.

As shown in fig. 6, the 4G module: the system is used for communicating with the server by using the 4G network when the wired broadband is not available.

As shown in fig. 7, a circuit diagram of the 5V power module supplying power to the main control module;

as shown in fig. 8, a circuit diagram of the 1.34V power module supplying power to the PLC communication module;

as shown in FIG. 9, a circuit diagram of a 3.3V power module supplying power to a PLC concentrator

According to the scheme, through the improvement on the data acquisition mode of the sensor and the improvement on the uploading mode of the gateway, the field construction difficulty is greatly reduced, and the data acquisition success rate and the data uploading success rate under the severe environment are improved. The concrete expression is as follows:

(1) the Bluetooth 5 protocol is adopted to transmit the sensor data, and a communication cable does not need to be laid during field construction, so that the raw material cost and the construction cost are greatly saved;

(2) the Bluetooth technology is the most widely applied and mature technology in the wireless transmission technology, and the Bluetooth protocol is adopted by more than 1/3 of all wireless products in the world. The communication of 5 agreements of bluetooth is reliable, and the interference killing feature is strong, can also make transmission distance farther through the mode of mesh network deployment, even inside the equipment case of installation, cable pit bottom, gateway can both reliably receive data. Because the Bluetooth 5 communication electrode saves electricity, the sensors are all powered by batteries, and can continuously work for more than 2 years without maintenance.

(3) The PLC communication mode is adopted to realize that the gateway data is firstly transmitted to the PLC concentrator and then is uploaded to the background server by the concentrator, so that the problem that the data can be reliably uploaded under the conditions that the installation position of the gateway has no wired broadband and the 4G signal is not good is solved. The method can be suitable for various power distribution room communication conditions, and the success rate of data uploading is guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a join in marriage electrical room thing networking gateway, includes data acquisition unit and data communication unit, its characterized in that: the data acquisition unit comprises a main control module, a PLC communication module and a Bluetooth 5 module;

2. The gateway of the internet of things of the power distribution room according to claim 1, wherein: the main control module adopts a Freescalei.MX6Q dual-core processor and a 4G-FLASH memory core board.

3. The gateway of the internet of things of the power distribution room according to claim 1, wherein: the Bluetooth 5 module adopts a Ti Bluetooth chip CC2640R2F, works in a 2.4GISM frequency band, is GFSK modulation, adopts FHSS frequency hopping technology, has strong anti-interference capability, has the maximum communication distance of 300 meters, can prolong the communication distance in a mesh networking mode, and has the networking node number of 200-500.

4. The gateway of the internet of things of the power distribution room according to claim 1, wherein: the PLC communication module adopts an ARDCM broadband PLC module, the interference resistance is strong, the data rate can reach 2Mbps, the single hop is 1km, and 15-level relay is realized.

5. The gateway of the internet of things of the power distribution room according to claim 1, wherein: the data communication unit and the data acquisition unit are located in the same power transformer range.