Wireless communication scheme of shared intelligent vending machine
Wireless communication scheme of shared intelligent vending machine
1、 Background
With the continuous expansion of the wireless communication mode of opening to the outside world, the traditional retail industry has developed into a situation in which department stores, supermarket chains, TV direct sales, factory direct sales and other modes coexist, which greatly facilitates people's life. As a mature and widely used retail industry in developed countries, which sells small commodities such as food, beverages and cigarettes through vending machines, it will surely develop rapidly in China with its convenient and novel characteristics.
As a new convenient equipment, vending machine is gradually accepted by consumers. In recent years, people have gradually realized the imperfection of the vending machine system: they can not understand the real-time operation status in time, nor can they replenish the goods in time, which affects the normal operation of the machine and brings great inconvenience to operators and consumers. For this reason, some people put forward the idea of networked monitoring of vending machines. By analyzing the characteristics of wireless network communication and the application requirements of vending machines, a wireless network remote vending machine monitoring system is constructed using the combination of wireless data transmission module and relational database.
The industrial 4G router connects the vending machine to the Ethernet through the serial port or Ethernet port, and intelligently manages the vending machine through the Internet platform. The industrial 4G industrial router is equipped with the vending machine networking solution. Through the dedicated VPN wireless network, the two-way data communication between the vending machine and the monitoring center is realized, and the automatic fault inquiry of the vending machine, timely replenishment and simple management are realized.
Wireless communication scheme of shared intelligent vending machine
2、 System description
The monitoring center realizes the following functions:
1. It can send configuration information, control command to RTU of vending machine, and calibrate RTU clock;
2. The data sent by the RTU of the vending machine is automatically stored in the database after being collected. The database has mobile security measures;
3. Process and automatically collect the alarm information on RTU. The alarm information includes various faults, shortage, price adjustment and other information;
4. Data telemetry function: regular patrol, manual patrol, random sampling and group call;
5. Remote control function: control the automatic switch of the vending machine, adjust the price, etc;
6. Purchase, sales and inventory system function: it has the function of regular purchase, sales and inventory management information system;
7. Combined with the purchase, sales and storage functions, data mining is carried out, and corresponding strategies such as replenishment, maintenance and machine placement are made.
Wireless communication scheme of shared intelligent vending machine
3、 System structure
Industrial 4G router products can be connected to the Internet of things platform by 2.5g/3g/4g wireless mode according to the site conditions, establish VPN channels, and access the monitoring center of the vending machine system. The monitoring center operates the network management platform and the business platform to realize the remote management of the on-site network access terminal box and the vending machine terminal.
4、 Product introduction
3G / 4G industrial wireless router, through 3G / 4G network, will realize safe, stable and reliable networking of self-service terminals throughout the country. It has large networking scale, unlimited deployment distance, short construction period and small initial budget investment, providing technical guarantee for cross regional big data management.
Main functions of the product:
1. Built in 2 / 3G / 4G module, dual-mode online, free switching
2. Dual mode link backup, supporting 3G / 4G and wired backup
3. Support VPDN, APN, IPSec (support CA digital certificate), GRE, ipip, PPTP, L2TP and DHCP server
4. Support web, CLI, SSH and platform parameter management methods, local, remote, platform firmware and patch upgrades
5. Support web configuration saving and recovery, realize parameter backup and rapid configuration of batch equipment
6. Intelligent anti drop, support online detection, online maintenance, automatic redial when dropped, to ensure that the equipment is always online
7. Support TFTP software remote upgrade
8. Support DHCP / dhcpd function
Wireless communication scheme of shared intelligent vending machine
Product characteristics:
Industrial wireless module: industrial wireless communication module is adopted, with strong anti-interference and stable transmission.
2. Electromagnetic protection: 1.5kV electromagnetic isolation protection is built in the Ethernet interface
3. Convenient and simple to use, automatic dialing after power on, low failure rate
4. Adopt soft and hard dual watchdog design, always online mode, to ensure 24-hour online operation and automatic maintenance
5. Serial port ESD protection: 15kV ESD protection is built in the serial port RS232.
5. Support M2M cloud platform equipment online status management function, simple maintenance and low cost
6. EMC electromagnetic compatibility level 3 and 4, suitable for environments with high stability requirements and high interference
5、 Summary
The remote monitoring equipment of the wireless communication module of the vending machine based on the 4G wireless network realizes the real-time monitoring and management of the operation state of the vending machine, which can not only improve the management efficiency and save the labor cost, but also greatly improve the service capacity and efficiency of the vending machine with a high degree of intelligence. Make full use of modern technology to carry out intelligent commodity trading and realize real intelligence.