CN207339890U

CN207339890U - Novel DTU

Info

Publication number: CN207339890U
Application number: CN201721260954.1U
Authority: CN
Inventors: 卢卫兵; 赵鑫; 文斌
Original assignee: Shenzhen Saifeiqi Photonics Technology Co ltd; Shenzhen Technology Institute of Urban Public Safety Co Ltd
Current assignee: Shenzhen Saifeiqi Photonics Technology Co ltd; Shenzhen Technology Institute of Urban Public Safety Co Ltd
Priority date: 2017-09-28
Filing date: 2017-09-28
Publication date: 2018-05-08
Anticipated expiration: 2027-09-28

Abstract

The utility model discloses a novel DTU, including CPU control module and with CPU control module is connected, power module AC/DC, GPRS wireless communication module, storage module, its characterized in that: the device also comprises an RS485 interface module which is used for supporting equipment for acquiring a plurality of paths of Modbus protocols; the CPU control module is embedded with a Modbus protocol module, and the RS485 interface module is connected with the CPU control module. The utility model adopts the GPRS wireless data transmission unit developed by the high-performance GPRS module, has the characteristics of stable performance, small volume and high cost performance, has low cost and is beneficial to the integration of user equipment and a system; the embedded MICROCHIP chip provides various reset mechanisms, can be controlled by software and realizes a perfect industrial guarantee mechanism; adopt the RS485 interface, support the equipment of gathering multichannel Modbus agreement, support 32 Modbus agreement equipment at most simultaneously, practice thrift the cost promptly and safe and reliable again, and input power is AC220V, connects the electricity convenient. No additional power adapter is required.

Description

A kind of new DTU

Technical field

It the utility model is related to data communication technology field, more particularly to a kind of DTU of embedded Modbus agreements.

Background technology

DTU (Data Transfer unit), is used exclusively for serial data being converted to IP data or turns IP data It is changed to the wireless terminal device that serial data is transmitted by cordless communication network.DTU is widely used in meteorological, Hydrology The industries such as profit, geology.

DTU on the market is mostly transparent transmission mode at present, as soon as an intermediation of getting up, equipment send what upload it is assorted .For industrially cannot just realize that data upload using more Modbus protocol devices.

Utility model content

The purpose of this utility model is to provide a kind of new DTU, embeds Modbus agreements, can be connected by RS485 interfaces The equipment for connecing more support Modbus agreements.

To solve above technical problem, the technical solution adopted in the utility model is：A kind of new DTU, including CPU controls Module and it is connected with the CPU control modules, power module AC/DC, GPRS wireless communication module, memory module, its It is characterized in that：RS485 interface modules are further included, the equipment for supporting collection multichannel Modbus agreements；The CPU control modules Embedded Modbus protocol modules, the RS485 interface modules are connected with the CPU control modules.

Further, the IO serial port modules being connected with the CPU control modules are further included, for wireline connected device.

In conclusion with the technical solution of the utility model, have the advantages that：The DTU of the utility model is adopted The GPRS wireless data transmission units developed with high performance GPRS module, have stable, small, the cost-effective spy of performance Point, cost is low, is conducive to the integrated of user equipment and system；Embedded MICROCHIP chips, there is provided a variety of reset mechanisms, can be soft Part controls, and realizes perfect industrial security mechanism；Using RS485 interfaces, the equipment for supporting collection multichannel Modbus agreements is at most same When support 32 Modbus protocol devices, i.e., it is cost-effective and safe and reliable, and input power be AC220V, connect electric facilitate.No Need separately to power up source adapter.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model DTU.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, but do not form the limitation to scope of protection of the utility model.

With reference to shown in attached 1, a kind of new DTU, including CPU control modules and be connected with the CPU control modules, Power module AC/DC, GPRS wireless communication module, memory module, it is characterised in that：RS485 interface modules are further included, for propping up The equipment for holding collection multichannel Modbus agreements；The CPU control modules embed Modbus protocol modules, the RS485 interfaces mould Block is connected with the CPU control modules.

In another implementation of the utility model, the DTU of the utility model is further included to be connected with the CPU control modules IO serial port modules, for wireline connected device.

The DTU of the utility model uses the GPRS wireless data transmission units of high performance GPRS module exploitation, having property Can be stables, small, cost-effective the characteristics of, cost is low, is conducive to integrating for user equipment and system.RS485 interfaces, are supported The equipment for gathering multichannel Modbus agreements, at most supports 32 Modbus protocol devices at the same time.

The above is the preferred embodiment of the utility model, it is noted that for the ordinary skill of the art For personnel, on the premise of the utility model principle is not departed from, some improvements and modifications can also be made, these are improved and profit Decorations are also considered as the scope of protection of the utility model.

Claims

1. a kind of new DTU, including CPU control modules and it is connected with the CPU control modules, power module AC/DC, GPRS wireless communication modules, memory module, it is characterised in that：RS485 interface modules are further included, for supporting to gather multichannel The equipment of Modbus agreements；The CPU control modules embed Modbus protocol modules, the RS485 interface modules and the CPU Control module connects.

A kind of 2. new DTU according to claim 1, it is characterised in that：Further include what is be connected with the CPU control modules IO serial port modules.