P2C Technology: Milestones of Smart Home Opening, Interconnection, and Popularization
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P2C technology, also known as power pulse communication and control technology, is a new type of non-carrier power line communication technology. It uses an AC power supply line as a communication transmission carrier, and uses AC half-wave pulses as a signal source for communication, through the exchange of The on-time of the half-wave pulse is controlled according to a specific coding method so as to realize the transmission of data information. In simple terms, the combination of the conventional thyristor dimming clip pulses at different brightness levels is used as the basic signal for information transmission and is provided directly to the power device that can decode this combination of pulses through the power line. While it is supplying power, it also passes control information.
220VAC half-wave conduction angle clipping pulse signal
P2C technology belongs to low-rate, short-data, high-reliability and low-cost communication technologies. It is suitable for lighting switches and home appliances. The power switches, simple adjustments, and basic controls require low transmission speed and bandwidth while achieving reliability and reliability. Real-time requirements higher control and connection.
Compared with the long-established power line carrier communication technology, P2C technology has higher reliability, more distant transmission distance, lower product cost and simpler application development. Compared with various wireless connection technologies currently used in many applications, P2C technology has the obvious advantage of being free from blocking by walls, no high-frequency radiation, and large signal and high anti-interference.
P2C technology is part of China's Smart Home Industry Alliance (CSHIA) Control Free program and is the first hardware open source interconnection and interoperability technology standard. P2C technology has full Chinese independent intellectual property rights, and its core patented technology is shared for free by the member units of the alliance. It is the basic connection technology of the smart home industry, especially for the popular applications of lighting control, intelligent lamps, smart home appliances and super switches. , is a key technology of a landmark nature.
The P2C technology was developed and promoted by the P2C Working Group of China Smart Home Industry Alliance (CSHIA). The working group was formally established in July 2015 in Jiaxing University, Zhejiang. Sponsored and joined companies include Shenzhen Botu Kangzhuo Intelligent Technology Co., Ltd. and Xiamen. ABB Zhenwei Electrical Equipment Co., Ltd., Zhejiang Zhengtai Electric Co., Ltd., Zhejiang Dahua Technology Co., Ltd., Guangdong Reid Intelligent Technology Co., Ltd., Shanghai Op Lighting Co., Ltd., Ningbo Duya Electromechanical Co., Ltd., Beijing Tiancheng Xinyu In April 2016, companies such as Science and Technology Co., Ltd. formally launched the P2C1.0 version of the protocol standard based on lighting control.
Application Features of P2C Technology
The most prominent application feature of P2C technology is that all smart devices fully implement high-reliability and low-cost wiring-free installation, that is, any product that adopts P2C technology, such as smart lighting, smart appliances, super switches, etc. Under the premise of any wiring, it is only necessary to access the 220VAC commercial power to automatically realize interconnection. For example, a traditional wall switch that replaces the super switch directly, or replaces the smart lamp directly with the original ordinary lamp, or inserts the smart home appliance into the 220VAC outlet, or installs the gateway control device directly on the rail of the distribution box, etc. It can realize the automatic connection of switch panel, intelligent lamps, smart home appliances and local area network.
Another characteristic application of the P2C technology is auxiliary control. For example, non-information control such as turning on/off of the Wi-Fi camera, panning of the pan/tilt, and alarm linkage can be excluded from the limitation of the Wi-Fi communication itself. P2C technology can also be used to implement multi-channel wireless communications equipment, channel switching, routing control and energy management.
Super switch
The super switch is one of the typical application cases of P2C technology. Its biggest application advantage lies in the realization of a complete high-power single-fire power supply and a bus bracket that provides a single lamp multi-functional combination panel, on the one hand to overcome the industry's unsolvable single FireWire switch leakage current, on the other hand, also provides a basic platform for installation, power supply and interconnection for various smart single product devices.
No matter how much power (0~200W) it is connected to and controlled by the super switch, it can be turned on or off, and it can achieve large current (>1A5VDC) output of the switch itself, such as USB charging, LED night light, Bluetooth music. Play, Wi-Fi camera, and more. At the same time, P2C technology connections are used between the different circuits where each super switch is located to implement mutual control, scene control, mobile phone remote control, and remote control.
The super switch adopts a completely open RS 485 protocol bus bracket on each single light switch panel to realize the installation and power supply, partial integration and interconnection of various intelligent single products or functional panels, such as the integration of Wi on the switch panel. -Fi camera, human sensor, intelligent thermostat, infrared remote control transponder, etc. Due to the openness and sharing of the RS485 protocol of the bus support, even any smart single product with Wi-Fi network function can be turned into a gateway or portal, and any mobile phone APP can be used to control the whole house of the entire P2C product.
LED light source
LED light source is the main application object of P2C technology. Due to the low threshold and low cost of P2C technology, only the P2C protocol needs to be added to the LED driver chip, with almost no additional cost, and no need to externally connect any smart device. It can realize the most basic intelligent control functions for LED light sources, such as off-site switching, dimming, scene combination and so on. At the same time, under the condition of no P2C control, it can still be used as a normal LED lamp.
Cloud Hotel Intelligent Platform
Through P2C open source master controllers, half-wave switches, light drivers, motor drivers, concealed connection modules, and super switches, super sockets, etc., around the "light, company, and wisdom" to create cloud hotel intelligent system applications. One-key scene service, electrical control service, energy-saving control service, cloud platform service, sharing service, off-grid connection service are included.
P2C Cloud Hotel's application plan takes full advantage of the advantages of power line transmission. Regardless of whether the front-loading market or the post-installation market needs smart building, the existing cabling can be used to quickly install and build the system, which saves the need for separate wiring. Expensive labor and material costs.
Appliance connection
P2C technology is also a very practical connection technology for household appliances. As long as any manufacturer's home appliances with P2C protocol are plugged in, they can discover each other and achieve mutual control. For example, a television remote controller can be directly used to directly switch lights, adjust air conditioners, and control water heaters.
The promotion of P2C technology
P2C technology breaks the shackles of a closed control system, creates an interconnected and shared business model, and allows more manufacturers and various types of equipment to achieve the most basic interconnection, especially the intelligent application of LED lamps and small household appliances. At the same time, due to the high reliability and low cost features of P2C technology, it is fully equipped with the basic conditions for civilian applications, and is ready for smart homes to enter into millions of homes. The application of smart home functions for hundreds of dollars will no longer be The people's dreams.