The ZHC492CG developed by Zongheng Intelligent Control is a 4G industrial-grade positioning module that uses Beidou GPS dual-mode positioning. At the same time, this product supports 4 channels of dry (wet) node detection, 4 channels of relay (COM, NO , NC) output, 4 channels of analog quantity (current 4~20mA) detection, 1 channel of RS485 transparent transmission network IO products, and is compatible with Modbus RTU/TCP protocol. With “remote control” as the core function and high ease of use, users can easily and quickly integrate it into their own systems to achieve remote and local control based on LTE and RS485.
Product Features:
√ Support JSON, Modbus RTU/TCP
√ 4 relay outputs
√ 4 DI (dry/wet node) inputs
√ 4 analog (current) inputs
√ TCP_Client/ MQTT_Client
√ Set time point to trigger action
√ Cloud forwarding, cloud networking
√ Local logic, inter-device logic
√ Network registration package, heartbeat package
√ Hardware watchdog
√ Data triggering and regular reporting
√ Remote configuration and remote upgrade
√ The host computer supports import and export of configuration files
On December 27, 2021, the Chinese government announced to the world that the Beidou Navigation Satellite System (BDS) will officially provide high-quality all-weather navigation, positioning, timing and speed measurement services to the Asia-Pacific region for free from now on [1]. The Beidou system is an independently developed and independently operated global satellite navigation system that is being implemented in my country. It is planned to be fully completed in 2020. It will cooperate with the United States’ Global Positioning System (GPS ), Russia’s GLONASS, and Europe’s Galileo satellite navigation system. (Gali-Leo) has been identified as the world’s four major satellite navigation systems by the International Committee on Global Navigation Satellite Systems (ICG).
Unser Land beschleunigt den Aufbau des Beidou-Satellitennavigationssystems und geht allmählich zu einem Dienstleistungssystem über, bei dem die Beidou-Satellitennavigation mit anderen Satellitennavigationssystemen für wichtige Branchen und Bereiche der Volkswirtschaft und der öffentlichen Sicherheit kompatibel ist. Ausländische Unternehmen nutzen ihre kumulierten Vorteile bei Technologie, Produkten und Marken im Bereich GPS, um auf dem chinesischen Markt zu konkurrieren [2]. Um die Förderung und Anwendung von Beidou im Bereich der nationalen wirtschaftlichen Sicherheit und die rasche Förderung auf dem Massenmarkt in einem relativ kurzen Zeitraum zu vervollständigen, ist der erste Schritt, um einen Empfänger-Chip mit Kern unabhängigen Rechte an geistigem Eigentum zu entwerfen [3]; der zweite Schritt ist, um schnell zu starten Pin-Größe kompatibel, Die Beidou-Modul mit kompatiblen Schnittstellenprotokoll, vergleichbaren Stromverbrauch und erschwinglichen Preis kann das GPS-Modul in situ zu ersetzen.
The GPS module can be divided into three parts: RF unit, engine unit and CPU processing unit. The development of GPS chips is the process of integrating these three units. First generation: 1990s, 3-stage design, low integration, three parts of the circuit are discrete chips, as shown in each module in Figure 1; Second generation: late 20th century, 2-stage design, LNA , filters, mixers, frequency synthesizers and oscillators are integrated into one RF chip; baseband processing integrates the engine, CPU, memory, power management and clock, etc.
Keywords: 4G RTU