Jinan USR IOT Technology Limited

1. GSM is the abbreviation of Global System for Mobile Communications. 2. GPRS is the abbreviation of General Packet Radio Service. 3.GPRS is a packet data bearer and transmission service developed on the basis of the GSM system. 4.The most fundamental difference between GPRS and GSM system is that GSM is a circuit switching system, and GPRS is a packet switching system. 5.GSM can only use SMS to transmit data, and it can’t be “real-time online” or “charged by volume”. Compared with GSM, GPRS has obvious advantages in the bearer and support of data services, and it can more efficiently use wireless network channel resources, it is especially suitable for intermittent, acyclic data transmission, a small amount of data transmission, and infrequent transmission of large capacity data. The technical advantages of GPRS are also manifested in the following aspects: high transmission rate; high resource utilization; short access time; always online; support IP protocol and X.25 p...

Data communication from Serial Device Server  USR-N520  to V-COM  Hardware connection: The default operation of USR-N520 serial port is 232. Please check the connection. 1.Search N520 by USR-TCP232-M4,E45.exe Set the IP type:DHCP/Auto IP Save and restart N520, then search again 2.Add a V-com Work mode :TCP Client Remote IP: 172.16.11.72 Remote port:23 3.open serial port of N520 and V-com on two TCP232-TEST.exe Source: http://usriot.com/support/faq/875.html

Introduction AT commands are instructions used to control a modem. AT is the abbreviation of ATtention. Every command line starts with “AT” or “at”. That’s why modem commands are called AT commands. Note that the starting “AT” is the prefix that informs the modem about the start of a command line. It is not part of the AT command name. For example, D is the actual AT command name in ATD, and +CMGS is the actual AT command name in AT+CMGS. Tasks Performed by AT Commands Here are some of the tasks that can be done using AT commands with a GSM/GPRS modem or mobile phone: Get basic information about the mobile phone or GSM/GPRS modem. For example, name of the manufacturer (AT+CGMI), model number (AT+CGMM), IMEI number (International Mobile Equipment Identity) (AT+CGSN), and the software version (AT+CGMR). Get basic information about the subscriber. For example, MSISDN (AT+CNUM) and IMSI number (International Mobile Subscriber Identity) (AT+CIMI). Get the current status of ...

What is 5G exactly? It’s the next — fifth-generation of mobile internet connectivity promising much faster data download and upload speeds, wider coverage and more stable connections. It’s all about making better use of the radio spectrum and enabling far more devices to access the mobile internet at the same time. What will it enable us to do? “Whatever we do now with our smartphones we’ll be able to do faster and better,” says Ian Fogg from OpenSignal, a mobile data analytics company. “Think of smart glasses featuring augmented reality, mobile virtual reality, much higher quality video, the internet of things making cities smarter. “But what’s really exciting is all the new services that will be built that we can’t foresee.” Imagine swarms of drones co-operating to carry out search and rescue missions, fire assessments and traffic monitoring, all communicating wirelessly with each other and ground base stations over 5G networks. Similarly, many think 5G will...

Definition of 4G and 4G LTE 4G is the fourth Generation Mobile Network Technology. 4G will replace 3G in the future, 4G provides a more reliable connection and higher speeds to people. 4G LTE means fourth generation long term evolution. LTE is a kind of 4G that provides fastest connection to mobile Internet experience-10 times faster than 3G. The terms 4G and 4G LTE are often used by people interchangeably, but they are not the same. 4G is a great substitute for 3G, 4G provides a faster speed for users who view website and download data. Fast speed of 4G means reduction buffer, some might say that 4g opened a new era of mobile internet. When 4G first used in the market, many networks can’t reach 4G speed. However, some operators sale mobiles with 4g service, in fact customers can not enjoy real 4G service unless they are in area where 4g network covered. Characters of 4G LTE 4G LTE is a kind of 4G technology, which provides the best performance and fastest speed at prese...

Currently, IOT is a chance for startups. In the light of McKinsey global institutes, by 2025, IOT will have played its role in the business of over 11.1 trillion USD. Many startups are trying to link their products with Internet, but a function of Internet connection in the product cannot ensure the boom of your products. IOT products will result in a huge sustained cost, namely, the cost of network infrastructure, network, and other connection and data related cost. If you cannot provide your customers with extra values, these cost will erode your profits. Here below are five typical cases to explain the logic and essence of IOT startups. 1.Logistic trace According to those who are engaged in the business, IOT technology will pose an influence on the logistic and supply chain management industry of over 1.9 trillion USD, which may be ascribed to the fact that IOT technologies, such as asset trance, can allow companies to monitor their logistic procedure accurately, which will als...

Today, the domestic smart home market rainbow night. While a variety of vendors rushed onto the smart products industry. According to a jeer networks to observe, appliance manufacturers in 2015 to launch a new product almost all smart products, you do not even find a home appliance business intelligence products. Secret: Chinese “smart home” is difficult to spread the truth On the other side, the user frequently Tucao: Wang: “Our family of sweeping robot gone, this is the first N times it disappears.” Total Jin: “not a clean sweep, only when children’s toys.” Mr. Ban: “Lying in bed every day to see sweeping robot ran in hurriedly, silently put my slippers to move away, and then hear it stuck carpets, lace stuck, stuck chassis sound, looking forward to the issue cry sound. ” Users fed up with sweeping robot give it a name: “mentally retarded home.” Sweeping robot is just a microcosm of the smart home: the concept is the fire, but the user acceptance is not high. The reaso...

RTU is the basic composition unit of the SCADA system. RTU is an electronic device installed at a remote site to monitor, measure, and collect sensors and equipment installed at remote sites, responsible for monitoring and controlling live signals and industrial equipment. RTU converts the measured status or signal into a data format that can be sent over the communication media, it also converts the data that is sent from the central computer into commands to realize functional control of the device. RTU is the abbreviation of Remote Terminal Unit, also the basic composition unit of the SCADA system. One RTU can have several, dozens or hundreds of I/O points that can be placed near the measurement point. RTU should have at least the following two functions: data acquisition and processing, data transmission (network communication), of course, many RTUs also have PID control function or logic control function, traffic accumulation function, etc.   As a product...

GPRS Modem  can be applied in many fields, including electricity, environmental protection, water conservancy, industrial, weather, traffic, security, mapping and other. Although it described above so many GPRS applications. But from a practical point of view, the more we want to have some clear principles to determine a unified collection system is suitable for use GPRS ways to achieve data transmission. 1. Use only site wireless communications environment When the next data acquisition equipment in the field need to work on the move or capture the scene in the field, etc., can not provide wired communication environment. This time, using the GPRS wireless network, it could be a good choice because the GPRS network coverage is now very high, most of the country have GPRS coverage. 2. Transmission distance field terminal dispersed Since the GPRS network is a nationwide public network, using the GPRS to transmit data collected in the field is a big advantage point you can ste...

Driven by the tide of intelligence, intelligent door locks based on network and Bluetooth, fingerprint door locks based on fingerprint recognition, and even door locks with face  recognition and iris recognition have become popular choices for consumers. USRIOT  industrial gateway USR-IO808 intelligent door lock solution supports WIFI, Bluetooth, LoRa, 433MHz wireless transparent transmission, it is convenient for users to accept and query entry and exit information of the family at any time, having strong rationality.   The problems you may encounter and our advantages The existing intelligent door lock has a single function and is not rich in networking; the price is very high, it is difficult to cover a large number of users with needs; The problem of biological fraud cannot be effectively eliminated, and there are certain security risks; The linkage f usage scenario is insufficient, and the interoperability with other devices is poor. ...

Industry background and analysis The ring main unit is to ensure the normal operation of electric energy from power generation to transmission to power distribution. If one line fails, it will affect the distribution of this electric energy. Generally speaking, the distribution room/ring main unit is generally installed in heavy-load industrial and mining enterprises, ports, airports, urban public buildings, highways, underground facilities and residential quarters. Therefore, remote monitoring of the distribution room/ring main unit cannot be achieved by arranging the network cable. Especially in the remote suburbs, laying fiber optic networks is more difficult to achieve, what's more, the cost is extremely expensive. Topological graph Case elaboration 1. Real-time measurement of the working temperature and humidity of the ring main unit through the terminal temperature control sensor 2. If the temperature value is abnormal and exceeds the set threshold, the ...