Gateway circuit of wireless sensor network
A wireless sensor and network gateway technology, applied in the field of computer engineering, can solve the problems of high power consumption, lack of gateway circuit, and lack of real-time data storage function, etc., and achieve the effect of low power consumption and strong processor capability
Inactive Publication Date: 2014-09-24
浙江中博光电科技有限公司
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Problems solved by technology
[0003] Since wireless sensor network gateways often work in the wild, they have high requirements for energy and power consumption, and there may be problems such as temporary failure of one party during communication. Existing wireless sensor network gateways usually only support limited transmission methods. It does not have the function of real-time storage of data, and the power consumption is high; at this stage, there is a lack of a flexible, convenient, safe and reliable gateway circuit
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[0030] The present invention will be further described below in conjunction with the accompanying drawings.
[0031] Such as figure 1 As shown, the wireless sensor network system includes a wireless sensor network subnet 1-1, a wireless sensor network gateway 1-2, a GSM / GPRS network 1-3, a local area network 1-4, and an end user 1-5.
[0032] Such as figure 2 As shown, the wireless sensor network gateway 1-2 includes a microcontroller 2-1, a serial communication circuit 2-2, an Ethernet circuit 2-3, a storage circuit 2-4, an interactive circuit 2-5, and a debugging interface circuit 2- 6. Power circuit 2-7 and clock circuit 2-8.
[0033] Such as image 3 As shown, the microcontroller circuit includes a microcontroller, a first MII interface selection resistor R1 and a first pull-down resistor R2, and one end of the first MII interface selection resistor R1 is connected to pin 41 of the microcontroller. The other end of the gate resistor R1 of a MII interface is grounded, ...
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The invention relates to the field of computer engineering, and aims at providing a gateway circuit of a wireless sensor network. The gateway circuit comprises a microcontroller circuit, a serial communication circuit, an Ethernet circuit, a storage circuit, an interchange circuit, a debugging interface circuit, a power supply circuit and a clock circuit. The serial communication circuit is in signal connection with a microcontroller serial port, the Ethernet circuit is in signal connection with a microcontroller Ethernet port, the storage circuit is in signal connection with a microcontroller SPI (serial peripheral interface) port and an I / O (input / output) port, the interchange circuit is in signal connection with a microcontroller pulse modulation output port and the I / O port, the debugging interface circuit is in signal connection with a microcontroller debugging port, the power supply circuit supplies power for the whole gateway, and the clock circuit provides a clock for the micro controller. The gateway circuit is flexible in supported communication modes, low in power consumption, small in volume and strong in processing capacity, and has a real-time data storage function; and simultaneously, the gateway circuit also can perform remote upgrading on the firmware of the gateway circuit through several communication modes so as to support more functions.
Description
technical field [0001] The invention belongs to the field of computer engineering, in particular to a wireless sensor network gateway circuit. Background technique [0002] A wireless sensor network is a wireless network composed of a large number of stationary or moving sensors in a self-organizing and multi-hop manner. user. Wireless sensor network realizes the functions of data collection, processing and transmission. A large number of sensor nodes send the collected data to other networks, such as local area networks, 3G networks, GPRS networks, GSM networks, etc., through wireless sensor network gateways (also known as sink nodes). The wireless sensor network gateway acts as a bridge between the wireless sensor network and other networks, and usually includes functions such as protocol conversion, data transmission, data storage, and online configuration. [0003] Since wireless sensor network gateways often work in the wild, they have high requirements for energy an...
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IPC IPC(8): H04W88/16
CPCY02B60/50Y02D30/70
Inventor 张翔李二涛
Owner 浙江中博光电科技有限公司