Chenxin Technology Co., Ltd., a subsidiary of China Xinke Group, is a leading enterprise in the professional field of communication terminal SoC chip in China. The company focuses on the fields of information communication and integrated circuit strategy, and has mastered key technologies such as 3G/4G/5G mobile communication terminal technology, large-scale integrated circuit design and SDR chip technology platform, providing professional and reliable communication terminal SoC chips and solutions for users in industries such as car networking, unmanned aerial vehicles and wireless security, helping them to design more competitive terminal products and create new ones together with them.
Verification and industrialization of networking technology of CX7100 C-V2X modular moped
As the proposer of the concept of C-V2X in the Internet of Vehicles and the promoter of standardization, China Xinke Group has been committed to actively promoting the development of C-V2X standards and the large-scale commercialization of the Internet of Vehicles industry. As the only company in the group with the ability of mobile communication and super-large-scale SoC design, Chenxin Technology has the core technical achievements of C-V2X, and takes the car networking market as one of the important strategic directions by virtue of its deep-rooted chip design technical advantages for many years, and participates in the development of the car networking industry all the time.
Chenxin Technology has recently introduced the product CX7100, a vehicle-level C-V2X module, which supports the features of 3GPP R14 LTE-V version and has a powerful AP processor, which can support customers to integrate V2X security application software into CX7100 module, greatly reducing the complexity of customer development and product cost. At the same time, the hardware interfaces provided by CX7100 module are very rich, including USB2.0, 3-way SPI, SDIO, 3-way UART, I2C, etc., which can meet the various system development needs of customers. This module product embodies the long-term accumulation and industrial experience of China Xinke Group in the field of wireless communication protocols and standards, and it has been highly recognized by the market and many customers once it is available.
2019year10Month, asV2XOne of the providers of terminal chips and modules, Chenxin Technology, together with Datang Mobile and Xingyun Internet, has realized the first "cross-chip module, cross-terminal, cross-vehicle and cross-security platform" in China.C-V2XApplication display. Car networking chip andCX7100Module inV2XThe successful demonstration in the "Four Spans" activity marks the application of Chenxin Technology in car networking products.C-V2XThe application deployment of the direction and the cooperation with upstream and downstream enterprises of the Internet of Vehicles go further.
The CX7100 module made a stunning appearance at the 2019 C-V2X "Four Spans" Interconnection Application Demonstration Activity.
CX7100 module is also widely used in major demonstration areas, including Xiamen 5G vehicle networking BRT demonstration application project, Hangzhou Xiaoshan 5G intelligent networked bus demonstration application project and Hebei Cangzhou Baidu Apollo autonomous driving and vehicle-road coordination project.
CX7100 module is widely used in major demonstration areas.
In October 2020, Chenxin Technology will join hands with Xingyun Internet, Qianfang Technology, Datang Mobile, Hyundai Mobis, China Unicom, Xinghe Highlight and other companies to continue to participate in the "New Four Spans" and large-scale pilot application demonstration activities of C-V2X, explore the functions and performance of C-V2X under the background of large-scale communication units, and demonstrate diversified functions and services of C-V2X to the public.
The CX6672 graph data transmission module empowers the data link of the new generation UAV.
UAV data link is an important part of UAV system, and it is the link between aircraft and ground system. UAV data link can be divided into uplink and downlink according to transmission direction. Uplink mainly completes the sending and receiving of remote control instructions from ground station to UAV, while downlink mainly completes the sending and receiving of telemetry data (flight control) and video images (image transmission) from UAV to ground station, and uses uplink and downlink for ranging according to the transmission of positioning information. The performance of data link directly affects the performance of UAV. According to the time and function, the UAV data link is divided into three stages:
The first stage: data transmission, which is mainly used for data transmission between flight control and ground stations. The main purpose is to adjust parameters, telemetry data and remote monitoring. Moreover, parameters can be adjusted during flight and flight data of flight control can be transmitted back, but large-capacity data cannot be transmitted.
The second stage: image transmission, which is used to meet the needs of high-resolution image/video real-time transmission for aerial photography, maintenance, measurement, mapping and monitoring. The UAV needs to be equipped with a wireless communication module that can realize wireless image transmission. At this stage, the image transmission mainly adopts two technologies: WiFi image transmission and COFDM radio image transmission. WiFi image transmission has the characteristics of low cost and small size, and it is quickly popularized in consumer drones. However, WiFi technology is designed for indoor static close range, and its transmission distance is only a few hundred meters, so it cannot be transmitted over a long distance. And the mechanism of WiFi carrier sense determines that it cannot be used reliably in multi-unit networks. COFDM radio station follows DVB broadcasting technology, which has high spectrum efficiency and long transmission distance, and can be applied to industrial UAVs with long-distance transmission. However, COFDM radio station generally adopts one-way broadcast transmission, which can not be used in networking, and the cost is very high. At present, it is gradually replaced by LTE image transmission with networking capability.
The third stage: digital and graphic transmission, multi-unit network. Traditional data transmission and image transmission all adopt independent modules, which occupy a large volume and consume a large amount of power. The new data link graph integrates data transmission, wide and narrow bands share wireless links, and the uplink and downlink are transmitted in both directions, which improves the efficiency of spectrum use. Single module supports serial port, network port, USB, HDMI and other interfaces; Serial port is used for data transmission, and network port, USB port and HDMI port are used for image transmission. With the rapid popularization of power line inspection, highway inspection, border inspection, surveying and mapping, fire prevention and other industries, the single-control single-machine mode can no longer meet the requirements. On the basis of two-way networking, multi-machine and multi-station networking is required.
Based on the application requirements of the above UAV scenes, Chenxin Technology launched the CX6672 graph data transmission module. Based on the SDR chip platform of Chenxin Technology, this module supports broadband data transmission of point-to-point and point-to-multipoint star networking. This module is based on LTE wireless communication standard and adopts.OFDM(orthogonal frequency division multiplexing) andMIMO(Multi-Input & Multi-Output,) and so on.technologyDifferent modulation and coding methods can be applied to adapt to different channel changes and obtain the maximum transmission efficiency.
CX6672 diagram data transmission module
Product features:
L bidirectional 120Mbps transmission bandwidth
L 64 node online business concurrency; Support 1-station multi-machine and 1-machine multi-station solutions;
L support a variety of bandwidth allocation (20MHz, 10Mhz, 5MHz, 3Mhz, 1.4Mhz, etc.)
L Support the coexistence strategy of more than 20 pairs of aircraft to avoid self-interference.
L support high-speed movement, up to 1000 km/h.
L Long transmission distance, up to 150km.
L supports 5.8GHz, 2.4GHz, 1.8GHz, 1.4GHz, 800MHz, 500MHz and other frequency bands, and supports frequency band customization.
L Support frequency selection and frequency hopping functions.
L supports QPSK/16QAM/64QAM modulation mode.
L Support ultra-low link transmission delay < 10ms；;
L Support QoS mechanism to ensure the quality of wireless transmission service, with high safety and reliability.
Typical application scheme: high-speed functional automatic inspection system
A number of ground base stations are deployed along the expressway, and each ground base station is connected with the monitoring center through optical fibers. When the UAV patrols along the expressway and reaches the wireless coverage area of a base station, the patrol video image is transmitted back to the command center through the base station; When the UAV flies to the coverage area of other base stations, it automatically switches transmission paths seamlessly, and data is not lost during the switching process.
Topology diagram of ground-to-air digital route
Main equipment
Background monitoring
Combined with the business scene of expressway, the system realizes the functions of unmanned aerial vehicle inspection automation, remote control of cloud platform, real-time image transmission and automatic identification of inspection targets, which effectively improves the efficiency of expressway daily work and promotes the construction and development of "smart expressway, green expressway and safe expressway".
CX5600 security wireless transmission system solves the problems that have long plagued the security industry.
CX5600 security wireless transmission system is one of the representatives of Chenxin Technology’s point-to-multipoint broadband access and data transmission product series. The system includes wireless terminal CX5600-T00, wireless micro base station CX5600-N00, and wireless network equipment management platform CX-WEMP.
The system does not depend on the operator’s base station, and adopts key technologies such as OFDM (orthogonal frequency division multiplexing) and MIMO(Multi-Input & Multi-Output). This technology supports a variety of bandwidth allocation: 3 MHz, 5 MHz, 10MHz, 20MHz, etc. It flattens the system architecture design, effectively reduces the system delay, improves the system transmission capacity, and has the characteristics of long transmission distance, large data throughput and strong anti-interference.
Wireless terminal CX5600-T00 wireless micro base station CX5600-N00
Features of CX5600 series:
Wireless technology: LTE-OFDM
Wireless band: 5.8G/2.4G/1.4G/800M (customizable)
Topological structure: star/mesh
Terminal capacity: 16 nodes /32 nodes
Transmission distance: 5KM/15KM
Device interface: network port/serial port
Power supply: DC12V/POE
Shell design: metal/three defenses
Protection level: lightning protection/surge protection
Power consumption: MAX 5W (terminal) /8W (micro base station)
Advantages of CX5600 series:
Can reduce the cable construction cost by 1/2.
Can reduce the operation and maintenance cost by 1/2.
Can shorten the project construction period by 4/5.
Can reduce the service fee of operators by 4/5.
Data traffic fee 0 yuan
Can be quickly deployed and controlled.
7 * 24 hours uninterrupted and stable work.
CX5600 security wireless transmission system is a wireless video and data transmission device for outdoor special security monitoring. It adopts advanced wireless signal processing technology, meets the needs of outdoor scenes, and has IP65 protection level (IP65 refers to dust-proof level 6, that is, it completely prevents dust from entering; The waterproof level is Grade 5, that is, low-pressure injection has no influence at any angle). This series is specially designed for outdoor application scenarios and can be widely used in industries such as mine monitoring, dock monitoring, forest monitoring, environmental monitoring and power monitoring.
On the basis of CX5600 series products, Chenxin also developed a complete solution to cooperate with solar power supply system-wireless solar monitoring scheme, which solved the two major problems of power supply and transmission at the same time, and was convenient to deploy and control, suitable for sites and scenes that needed to temporarily build monitoring systems, and solved the problems of high construction cost and rapid deployment.
At present, this set of complete solutions has been applied in the field along the railway, smart towns, flood control and disaster relief, photovoltaic power stations and other scenarios.
