The concept of car networking has been discussed for many years, and there are already better operating scenarios and operating modes in the European and American markets, while the domestic car networking layout is relatively slow. It is very vague to understand the concept of car networking, what is the car network, how to achieve car networking, such as adding a 4G module on the car for WAN access is the car network, adding a call network in a fleet is a car Networking, what is the connection between driverless and car networking, what technologies are there in the Internet of Vehicles, etc. In order to let everyone better understand and participate in the construction of the Internet of Vehicles, I will briefly introduce the car. Networked technologies and features. Car networking technology and features Vehicle networking can be divided into three parts: network interconnection, information transmission and data operation. From the network topology, it can be divided into three parts: car intranet, car network and car internet. The core of car networking is effective. A fast and stable interoperability network that includes inter-communication between vehicles, between vehicles and infrastructure, between vehicles and between vehicles, and through the interworking network to collect and transmit various sensory data. And up and down information instructions to achieve predictive safe driving and various business bearers. There are two main types of wireless communication technologies for car networking today. One is the WRC-based DSRC dedicated short-range communication technology car network, and the other is the next-generation 5G car network C-V2X based on cellular network. Let's take a closer look. These two options. WRC-based DSRC dedicated short-range communication technology vehicle networking DSRC is the abbreviation of Dedicated Short Range Communication, which is a special short-range communication technology. DSRC adopts the 802.11p specification. It is a wireless specification based on the existing WIFI wireless technology 802.11a. It adopts the communication band of 5.9GHz, which is a kind of Efficient wireless communication technology, providing high-speed data transmission and ensuring low latency and low interference of communication links. It can identify high-speed moving objects in a small area ranging from tens of meters or hundreds of meters. And two-way communication, realizing the function of transmitting image, voice and data information in real time. So far, DSRC technical standards have become more and more mature in the United States and Europe, becoming an open, unpatented unified standard, has been widely used in ETC, access control, fleet management, vehicle identification, road warning, congestion reminder , information reminders, road rescue and information services. Next-generation 5G car network C-V2X based on cellular network Cellular car networking technology C-V2X, a communication technology designed for high-speed mobile applications, is optimized for automotive applications. It also includes practical application experience of 802.11p and basic progress of wireless communication, utilizing the global wireless ecosystem. The system implements a new set of automotive applications that provide users with greater safety and autonomous driving performance. Cellular vehicle networking includes direct communication of V2V, V2I, and V2P, as well as V2N network-based communication, which can be well adapted to different application scenarios. With the large-scale advancement of 5G commercials, more new use cases will be brought to the cellular-based car networking technology, especially in the high-volume information sharing, including broadband carrier support, ultra-low Delay and high reliability, etc.; and all functions can be implemented based on the cellular modem already built into the new car, which means it can cover every car that the world can reach.
Cooling capacity:130kW-2500kW.
♦ Channel Steel base.
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Characteristics:
1.Reusable. Using solar energy stored in earth as cooling & heating source.
2.Great environmental and economic benefit, No boiler or cooling tower; less space, less CO2 and less initial investment.
3.Acting as multi-function unit. Such as cooling, heating, sanitary hot water separately or simultaneously.
4.Wide application as hotel, apartment, villa, factory, shopping center, office building, school, etc.
5.Semi-hermetic screw compressor for mod.130 to 2500. Each compressor is equipped with a crankcase heater and a thermal overload cut-out; the screw compressor is also complete with a built-in electronic protection with temperature sensor located directly in the motor winding and on the discharge line.
6.The refrigerant circuit is complete with sight glass, filter drier, high and low pressure gauges, solenoid valve, direct expansion valve, high and low pressure switch.
7.Shell and tube dry expansion type condenser, factory insulated with flexible close cell material. Shell and tube type evaporator, factory insulated with flexible close cell material.
8.The electric panel consists of compressor breaker, compressor contactor, phase sequence relay, control circuit breaker, microprocessor control with function display.
9.LCD display, touch screen control panel as standard. Automatic operation dramatically reducing maintenance cost thanks to reliable microprocessor system.
10.For the units with semi-hermetic screw compressor, an infinitely variable capacity control system that is capable of exactly matching the demand requirement of the system is to be supplied. This system is to provide precise and stable control of supply water temperature over the complete range of operating conditions.
11.OPTIONAL
♦ Electronic expansion valve.
♦ Desuperheater as optional.
♦ Electronic controller with BMS system.
♦ Low noise compressor cabinet or outside full cover
