4G data transmission terminal is mainly used for data transmission in the Internet of Things industry. The collected data is sent to the host computer (server) through the 4G network. At the same time, 4G data transmission terminal has another name, called 4G DTU “Data Transfer unit” “This type of product all uses 4G network, so it is fully Netcom and supports China Mobile, China Telecom and China Unicom. Most of the 4G data transmission terminals currently on the market are fully network-connected. For example, this 4G data transmission terminal from Zongheng Intelligent Control has 7 modes and 15 frequencies – it can also be used in some foreign countries.
Let’s talk about some features of this “4G data transmission terminal” from Zongheng Intelligent Control. The “active collection” function is a function rarely found in other products on the market. It can actively collect sensor data and send it to the server. Users can set the collection cycle directly in the configuration software. Very simple to use. At the same time, the networking method is also quite unique, supporting one-to-one and one-to-many. Free Zongheng Cloud is provided through Zongheng Intelligent Control, which can realize the same functions as digital radio stations. (The price of digital radio stations on the market is about 1,000 yuan/station. However, the price of Zongheng Intelligent Control is only ￥331/station.)
Introduction to 4G data transmission terminal functions
Most of the products on the market are actually roughly the same. They are nothing more than transparent transmission, providing heartbeat packages, registration packages and other common functions. However, the 4G data transmission terminal introduced must have some functional features that other manufacturers do not have – Zongheng Intelligent Control 4G data transmission terminal (ZHC4012). Let’s start with the product’s special functions, and then talk about the common functions.
“Special feature” (1) Support automatic collection and proactive reporting. The collection instructions and collection cycle can be dynamically modified. Reduce server processing flow. Most products currently on the market do not have this feature. (2) ZHC4012 supports networking functions, supporting one-to-one, many-to-one networking, etc. It is very practical for the needs of certain special scenarios.
“basic skills” (1) China Mobile, China Unicom, China Telecom 4G high speed (2) Data transparent transmission (3) Serial heartbeat packet (4) TCP_Client, HTTP_Client (5)Modbus RTU /TCP (6) Host and slave modes, the host mode supports RS485 cascading of multiple devices (7) Cloud forwarding, cloud networking (8) Setting APN (9) Network registration package, heartbeat package (10) Hardware watchdog (11) SIM card number query (12) Local upgrade, remote upgrade (13) Host computer quick configuration (14) Virtual serial port remote operation
4G data transmission terminal application
The advantages and characteristics of 4G communication method are low delay, fast speed, good signal, and it can automatically switch networks when the network is not good. For applications such as Internet of Vehicles, smart machines, video surveillance, smart electric piles, vending machines, etc. that require high speed It is fast and very suitable for application scenarios with good signal. In addition to the scenarios mentioned above, it is also suitable for other scenarios that require speed and delay.
4G data transmission terminal parameters
Parametri wireless
Frequency band information
LTE-FDD
B1/B3/B5/B8/(B28)
LTE-TDD
B38/B39/B40/B41
WCDMA
B1/B8
TD-SCDMA
B34/B39
CDMA
BC0
EVDO
BC0
GSM
900/1800
specifications
LTE-FDD
Max 150Mbps (DL)/50Mbps (UL)
LTE-TDD
Massimo 130Mbps (DL)/35Mbps (UL)
TD-SCDMA
Max 4,2 Mbps (DL)/2,2 Mbps (UL)
WCDMA
Max 384kbps (DL)/384kbps (UL)
EDEG
Max 236,8kbps (DL)/236,8kbps (UL)
GPRS
Max 85,6kbps (DL)/85,6kbps (UL)
CDMA1x
Max 153,6kbps (DL)/153,6kbps (UL)
porta seriale
Numero di porte
RS485*1
standard
RS485: morsettiera a 2 posizioni (A, B)
velocità di trasmissione
600～921600bps
bit di dati
8,9
Bit di stop
0.5 , 1 , 1.5 , 2
Cifra di controllo
NONE (nessun bit di parità) EVEN (parità pari) ODD (parità dispari)
