CN211880164U

CN211880164U - Underground works thing allies oneself with equipment based on LORA

Info

Publication number: CN211880164U
Application number: CN202020826489.9U
Authority: CN
Inventors: 马新宝; 刘飞; 吴爱民; 谢薇薇
Original assignee: Institute of Engineering Protection National Defense Engineering Research Institute Academy of Military Sciences of PLA
Current assignee: Institute of Engineering Protection National Defense Engineering Research Institute Academy of Military Sciences of PLA
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-11-06
Anticipated expiration: 2030-05-18

Abstract

The utility model relates to an underground works thing allies oneself with equipment based on LORA, including host system, LORA communication module, peripheral supplementary power module and mother board, host system pass through mother board and LORA communication module interactive connection, peripheral supplementary power module also passes through mother board and host system to be connected, still include equipment control module and equipment state acquisition module; the equipment control module consists of an interface unit, a forward and reverse rotation controller and an alternating current contactor, wherein the input end of the interface unit is connected with the main control module through a motherboard, and the forward and reverse rotation controller and the alternating current contactor are respectively connected with the output end of the interface unit. The utility model discloses steerable multiple AC consumer is connected conveniently with being controlled equipment, need not increase any components and parts, can directly be connected with being controlled equipment power supply terminal, need not lay the cable and can realize wireless thing networking and build, uses to have characteristics such as signal coverage is big, wear wall ability reinforce, low power dissipation in underground works.

Description

Underground works thing allies oneself with equipment based on LORA

Technical Field

The utility model relates to a LORA wireless communication technique and control technology specifically are an underground works thing allies oneself with equipment based on LORA.

Background

At present, in underground works equipment control system construction deployment, adopt bus structure usually, with the mode of wired connection with the management layer, the control layer, the equipment layer is connected, if need increase equipment, then need the equipment layer have reserve input/output interface, under the condition that the system has accomplished the construction, it will bring a large amount of construction volumes to increase equipment, including laying the cable, increase control node, supplementary switch board, cable crane span structure construction etc. the process is more, the time limit for a project is longer, influence engineering normal use, and have certain influence to the reliable operation of former system, system expansibility is not strong. The LORA is a novel wireless communication technology, integrates a digital spread spectrum technology, a digital signal processing technology and a forward error correction coding technology, increases link budget and anti-interference capability in a data transmission process, has strong signal penetration capability and large coverage capacity, and can be quickly and conveniently deployed in an underground building. In the underground engineering transformation process, a large amount of application equipment needs to be connected into the Internet of things, the difficulty of laying line cables is high, the period is long, the cost is high, an Internet of things device which can be used in underground engineering needs to be researched urgently, and the application equipment is conveniently connected into an Internet of things network in a wireless communication mode.

Disclosure of Invention

To above-mentioned actual demand, the utility model aims at providing a possess functions such as data acquisition, processing, control, transmission mode adopts the wireless communication technique based on LORA, the thing that can deploy fast in underground works inner space allies oneself with equipment.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an underground engineering internet of things device based on LORA comprises a main control module, an LORA communication module, a peripheral auxiliary power supply module and a mother board, wherein the main control module is interactively connected with the LORA communication module through the mother board, the peripheral auxiliary power supply module is also connected with the main control module through the mother board, and the device comprises a device control module and a device state acquisition module;

the equipment control module consists of an interface unit, a forward and reverse rotation controller and an alternating current contactor, wherein the input end of the interface unit is connected with the main control module through a motherboard, and the forward and reverse rotation controller and the alternating current contactor are respectively connected with the output end of the interface unit; the interface unit outputs a direct-current voltage control signal to control the forward and reverse rotation controller and the alternating-current contactor, so that the start and stop control of the controlled equipment is realized; the forward and reverse rotation controller outputs alternating voltage for connecting controlled equipment to realize forward and reverse rotation control of the controlled equipment; the alternating current contactor configures output voltage according to the requirement of controlled equipment;

the device state acquisition module is also connected with the main control module through the motherboard and is used for acquiring and processing the running state of the controlled device.

The peripheral auxiliary power supply module consists of a two-way power supply automatic switcher, a lithium battery and a voltage converter, wherein the voltage converter converts 220V alternating current into 24V direct current which is used as a main power supply of the Internet of things equipment and is connected to the main input end of the two-way power supply automatic switcher; the lithium battery is used as a standby power supply of the Internet of things equipment and is connected to the auxiliary input end of the double-path power supply automatic switcher; the output end of the double-circuit power supply automatic switcher is connected with a power supply interface of the main control module.

The LORA communication module is connected with the main control module through an SPI bus and used for receiving and transmitting wireless data.

The main control module is a programmable controller and is used for analyzing and processing data, processing various control signals and controlled equipment state signals and realizing LoRa physical layer link, network, transmission and application protocol analysis based on the LoRa communication module.

The output power of the alternating current contactor of the equipment control module is not more than 5 KW.

The master control module, the LORA communication module, the peripheral auxiliary power supply module, the equipment control module and the equipment state acquisition module are all fixedly connected with the motherboard.

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

the utility model relates to a thing allies oneself with equipment based on LORA wireless communication technology development, through diversified configuration, steerable multiple AC consumer, the realization is controlled equipment just reverse control, it is convenient to be connected with controlled equipment, need not increase any components and parts, can directly be connected with controlled equipment power supply terminal, 5 KW's load driving ability has, can gather controlled equipment operating condition, in addition, thing allies oneself with equipment adopts the wireless communication mode of LORA, it establishes to need not to lay the cable and can realize wireless thing networking, it is big to have signal coverage at underground works use, wear the wall strong ability, characteristics such as low power dissipation, double-circuit power supply automatic switch-over function has, during the main power supply, the stand-by power supply circuit breaks, after the main power supply cuts off, stand-by power supply automatic power supply, ensure that the module lasts uninterrupted duty.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

The invention is described in further detail below with reference to the drawings and specific examples.

Example 1

As shown in fig. 1, an underground engineering internet of things device based on LORA includes a main control module, an LORA communication module, a peripheral auxiliary power supply module, a device control module, a device status acquisition module, and a motherboard, wherein the main control module is a programmable controller KS105-16DT for analyzing and processing data, processing various control signals and controlled device status signals, and implementing link, network, transmission, and application protocol analysis of LORA physical layer based on LORA communication module; the LORA communication module is APC340 in model, is connected with the main control module through an SPI bus and is used for realizing the receiving and sending of wireless data; the main control module, the LORA communication module, the peripheral auxiliary power supply module, the equipment control module and the equipment state acquisition module are integrated on the motherboard, wherein the main control module is interactively connected with the LORA communication module through the motherboard, and the rest modules are connected with the main control module through the motherboard;

the equipment control module consists of an interface unit, a forward and reverse rotation controller and an alternating current contactor, wherein the input end of the interface unit is connected with the main control module through a motherboard, the forward and reverse rotation controller and the alternating current contactor are respectively connected with the output end of the interface unit, and the interface unit is responsible for outputting a 24V direct current voltage control signal to control coils of the forward and reverse rotation controller and the alternating current contactor so as to realize the start-stop control of the controlled equipment; the forward and reverse rotation controller is in a VBC7-30-10 model, outputs 380V alternating voltage, can be directly connected with controlled equipment with rated power not more than 5KW, such as an electric valve, and realizes forward and reverse rotation control of the controlled equipment; the type of the alternating current contactor is BC7-30-10, the output voltage can be flexibly configured according to the requirement of the controlled equipment, 380V alternating current voltage or 220V alternating current voltage can be selected, and the output power is not more than 5 KW;

the device state acquisition module is also connected with the main control module through the motherboard, and acquires the running state of the controlled device, such as switching value signals of a mechanical switch or a contact, and the like, so as to indicate the state of the controlled device, such as working, stopping or failure.

The peripheral auxiliary power supply module consists of a double-circuit power supply automatic switcher, a lithium battery and a voltage converter; the model of the voltage converter is IRM-30-24, the voltage converter converts 220V alternating current into 24V direct current, and the direct current is used as a main power supply of the internet of things equipment and is connected to the main input end of the double-path power supply automatic switcher; the lithium battery is used as a standby power supply of the Internet of things equipment and is connected to the auxiliary input end of the double-path power supply automatic switcher; the model of the double-circuit power supply automatic switcher is GYJ-0124, and the output end of the double-circuit power supply automatic switcher is connected with a power supply interface of the main control module. Under the normal condition, the equipment of the internet of things uses a main power supply to supply power, when the main power supply is cut off, the standby power supply is automatically connected into the circuit to supply power for the main control module, and the equipment of the internet of things can be ensured to continuously work.

It should be noted that, the embodiment 1 is only a specific embodiment with better using effect of the technical solution provided by the present invention, and it is not a limitation to the technical solution provided by the present invention.

The part of the utility model not detailed is prior art.

Claims

1. The utility model provides an underground works thing allies oneself with equipment based on LORA, includes host system, LORA communication module, peripheral supplementary power module and mother board, characterized by: the main control module is interactively connected with the LORA communication module through a motherboard, the peripheral auxiliary power supply module is also connected with the main control module through the motherboard, and the device control module and the device state acquisition module are further included;

the equipment control module consists of an interface unit, a forward and reverse rotation controller and an alternating current contactor, wherein the input end of the interface unit is connected with the main control module through a motherboard, the forward and reverse rotation controller and the alternating current contactor are respectively connected with the output end of the interface unit, and the interface unit outputs a direct current voltage control signal to control the forward and reverse rotation controller and the alternating current contactor, so that the start and stop control of the controlled equipment is realized; the forward and reverse rotation controller outputs alternating voltage for connecting controlled equipment to realize forward and reverse rotation control of the controlled equipment; the alternating current contactor configures output voltage according to the requirement of controlled equipment;

2. A LORA-based underground construction internet of things device according to claim 1, wherein: the peripheral auxiliary power supply module consists of a two-way power supply automatic switcher, a lithium battery and a voltage converter, wherein the voltage converter converts 220V alternating current into 24V direct current which is used as a main power supply of the Internet of things equipment and is connected to the main input end of the two-way power supply automatic switcher; the lithium battery is used as a standby power supply of the Internet of things equipment and is connected to the auxiliary input end of the double-path power supply automatic switcher; the output end of the double-circuit power supply automatic switcher is connected with a power supply interface of the main control module.

3. A LORA-based underground construction internet of things device according to claim 1, wherein: the LORA communication module is connected with the main control module through an SPI bus and used for receiving and transmitting wireless data.

4. A LORA-based underground construction internet of things device according to claim 1, wherein: the main control module is a programmable controller and is used for analyzing and processing data, processing the control signal and the controlled equipment state signal and realizing LoRa physical layer link, network, transmission and application protocol analysis based on the LoRa communication module.

5. A LORA-based underground construction internet of things device according to claim 1, wherein: the output power of the alternating current contactor of the equipment control module is not more than 5 KW.

6. A LORA-based underground construction internet of things device according to claim 1, wherein: the master control module, the LORA communication module, the peripheral auxiliary power supply module, the equipment control module and the equipment state acquisition module are all fixedly connected with the motherboard.