On the evening of May 30, Tongfang Co., Ltd. (600100) issued an announcement to implement the Qian'an Sponge City Project. Tongfang shares are planned to be invested with Shenzhen Huakong SEG Co., Ltd., Beijing Qingkong Habitat Environment Research Institute Co., Ltd., Beijing Central Century Engineering Design Co., Ltd. and Qian'an Hai'an Investment Co., Ltd. jointly formed Qian'an Huakong Environmental Investment Co., Ltd., responsible for the construction, management and overall operation of Qian'an Sponge City Project.
The registered capital of the project company is 335.87 million yuan, of which Tongfang shares contributed 91.356 million yuan, and the shareholding ratio is 27.2%. Previously, Tongfang shares were recognized as the winning bidder unit of the Qian'an Sponge City Project.
According to the announcement, the name of the company to be registered is Qian'an Huakong Environmental Investment Co., Ltd. (subject to the name approved by the industrial and commercial department). Except for the shares of Tongfang, the other funders are: 20.00% of Qian'an Hai'an Investment Co., Ltd. Shenzhen Huakong SEG Co., Ltd. invested 26.40%, Beijing Qingkong Habitat Environment Research Institute Co., Ltd. 2.40%, and Beijing Zhonghua Century Engineering Design Co., Ltd. 24.00%. The business scope of the company to be registered: responsible for the investment, construction, management and operation of the Qian'an Sponge City Project.
The project company will be responsible for the investment, construction, management and operation of the Sponge City PPP project in Qian'an City, and obtain the franchise rights for 11 sub-projects. The total service fee and operating service fee for the franchise is RMB 2,418,600,170 (including a total investment of RMB 119,958,300), and the service sub-projects are for a period of 25 years (including the construction period), except for government investment projects. The service period of the project is 17 years (including the construction period). After the project is completed and passed the acceptance, the government will pay the service fee on an annual basis.
According to the announcement, Tongfang is based on information, energy conservation and environmental protection. It has cultivated industrial energy conservation, industrial energy conservation, semiconductor lighting chips, water and other industrial sectors in the energy conservation and environmental protection industry, and has been working hard to explore BOT, TOT, PPP, The application of emerging business models such as EMC in the field of energy conservation and environmental protection. The signing and implementation of the PPP project for the construction of the sponge city in Qian'an will provide the listed company with experience in construction, operation and management in the development of the environmental protection industry with the PPP model, and will be beneficial to the market development of the listed company's future environmental protection business. .
Recently, Tongfang has a strong advantage in the three major technology industries of information, security, energy conservation and environmental protection. In the future, the performance growth elasticity of the joint and win-win between the Tongfang shares and the war-torn investment is worth looking forward to. According to industry insiders, the successful bid for the sponge city construction project in Qian'an City indicates that Tongfang has made progress in the field of environmental protection, which will have a positive impact on its future market share growth and performance growth.
Domestic communication, 4 g module in addition to support two kinds of LTE FDD LTE/TD - LTE standard, also compatible with 2 g / 3 g down, support td-scdma/WCDMA/EDGE/GP/GSM/CDMA1X/EVDO mode. The data service downstream rate can reach up to 100Mbps, the uplink rate can reach up to 50Mbps, providing customers with high-speed Internet access and wireless data connection and other functions. In addition to providing high-speed data access, it also provides voice, SMS, communication book and other functions, which can be widely used in notebook, tablet, touch screen communication devices, smart phones, video surveillance, multimedia mobile phones and vehicle equipment and other terminal products and vertical applications. Today, I will introduce you to what is 4G module and how to use 4G module.
What is 4G module
4G module said TD-LTE and FDD-LTE and other LTE network standards are collectively referred to. It has the characteristics of fast communication speed, wide network spectrum and flexible communication. 4G module refers to a product whose hardware is loaded to the specified frequency band, software supports the standard LTE protocol, and software and hardware are highly integrated and modular. The hardware integrates radio frequency and baseband on a small PCB board to complete wireless receiving, transmitting and baseband signal processing functions. The software supports voice dialing, SMS sending and receiving, dial-up networking and other functions.
Second, how to use 4G module
The 4G module is usually inserted into the circuit board or the patch module is welded to the circuit board, and the corresponding SIM card is inserted, and the network is connected through the 4G cellular network. In the common transparent transmission mode, data can be directly sent to the target server through the 4G module, and the 4G module can receive data from the server at the same time, and send the data to the serial port, which is received by the serial port device connected to the 4G module. Users do not need to pay special attention to the data conversion process between serial port data and network data packets, only need to insert the module to the target position, simple connection and parameter setting, you can achieve transparent transmission between the serial port and the network end.
What is the 4G module How does the 4G module work
4G module, also known as 4G transmission module, 4G communication module, 4G LTE module. It is a kind of hardware loaded to the specified frequency band, the software supports the standard LTE protocol, and the software and hardware are highly integrated modular products, with good compatibility, fast communication speed, large amount of communication data, wide network spectrum, communication flexibility and other characteristics, widely used in electric power, environmental protection, finance, industrial automation and other fields.
The working principle of 4G module
It has the characteristics of fast communication speed, wide network spectrum and flexible communication. The hardware integrates radio frequency and baseband on a small PCB board to complete wireless receiving, transmitting and baseband signal processing functions. The software supports voice dialing, SMS sending and receiving, dial-up networking and other functions.
Through high-speed networking, the 4G module transmits all terminal business data and equipment operating status to the business center in real time. Through the management monitoring platform, the terminal equipment operating status can be monitored in real time and equipment faults can be timely checked. The efficiency has been greatly improved in many aspects such as operating cost, operation scale and service timeliness. Suitable for shared massage chair, public charging pile, vending machine, vehicle system, environmental monitoring, power remote monitoring and other industries.
4G module refers to a product whose hardware is loaded to the specified frequency band, software supports the standard LTE protocol, and software and hardware are highly integrated and modular. It has the characteristics of fast communication speed, wide network spectrum and flexible communication. The hardware integrates radio frequency and baseband on a small PCB board to complete wireless receiving, transmitting and baseband signal processing functions. The software supports voice dialing, SMS sending and receiving, dial-up networking and other functions. Through high-speed networking, the 4G module transmits all terminal business data and equipment operating status to the business center in real time. Through the management monitoring platform, the terminal equipment operating status can be monitored in real time and equipment faults can be timely checked. The efficiency has been greatly improved in many aspects such as operating cost, operation scale and service timeliness.
Good compatibility
4G module supports FDD LTE/TD-LTE two LTE standards, can also be backward compatible with 2G/3G, support LTE-FDD, LET-TDD, WCDMA, TD-SCDMA, CDMA, GSM and other bands.
Large amount of communication data
4G module downstream rate can reach up to 150Mbps, uplink rate can reach up to 50Mbps, to provide customers with high-speed Internet access and wireless data connection and other functions, suitable for large data transmission applications, such as: remote video surveillance.
High communication speed
The 4G module has a lower ping value than the 2G/3G module, and it takes less time for the module to send data packets to receive the response from the server, which is suitable for applications requiring high response speed, such as remote alarm.
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