Indoor sensor network transmission system based on fusion of knx and zigbee
A sensor network and transmission system technology, applied in general control systems, control/regulation systems, machine-to-machine/machine-type communication services, etc. High performance, strong practicability and low power consumption
Active Publication Date: 2019-05-14
SOUTH CHINA UNIV OF TECH
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Problems solved by technology
Although this method is relatively stable in the process of data transmission, too many cables lead to messy wiring in the monitoring area, inconvenient movement of the ward, and poor user experience, which often leads to the situation that the ward is unwilling to use
The wireless transmission method can solve the problem of complex wiring, and the user experience is better, but because the existing wireless transmission data packet loss rate is still relatively high, the system stability using this transmission method is not enough, and the wireless transmission node has power supply inconvenience. If the system transmits a lot of data, excessive power consumption will reduce the system's standby time, which is not conducive to the real-time work of the system.
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Embodiment
[0018] Such as figure 1 As shown, an indoor sensor network transmission system based on the fusion of KNX and ZigBee, the operation process of the system is as follows:
[0019] [1] The heart rate sensor and body temperature sensor are arranged on the wrist of the ward, and the data sampling frequency is 60HZ, which are transmitted through the ZigBee local area network through the first ZigBee node (ie ZigBee node 1). The acceleration sensor and the gyroscope sensor are arranged on the ward's At the waist, the data sampling frequency is 40HZ, and the second ZigBee node (ie ZigBee node 2) is connected to the ZigBee local area network for transmission. The two nodes uniformly collect and store the data in the two nodes through the ZigBee coordinator. ZigBee node and ZigBee coordinator are custom developed based on CC2530 development kit. The role of each sensor is as follows:
[0020] Acceleration sensor: Since the acceleration around the waist is less disturbed when the huma...
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The invention discloses an indoor sensing network transmission system based on KNX and ZigBee fusion, comprising a monitoring center, a mobile client, a control module, a relay processing module, a ZigBee sensing network and a KNX sensing network. The ZigBee sensing network is provided with a ZigBee sensor, a ZigBee coordinator and a ZigBee node. The KNX sensing network is provided with a KNX bus and a KNX sensor. The monitoring center and the mobile client are both in connection with the control module through the Internet; the control module, the ZigBee sensing network and the KNX sensing network are all in connection with the relay processing module. The indoor sensing network transmission system possesses the advantages of stable transmission, low power dissipation, simple wiring, etc.
Description
technical field [0001] The invention relates to a network transmission technology, in particular to an indoor sensor network transmission system based on the fusion of KNX and ZigBee. Background technique [0002] With the development of society, various nursing technologies are constantly updated and iterated. In the past, if there were elderly people or family members with poor self-care ability at home, they often needed someone to accompany them all the time to prevent them from falling and causing danger, or misoperating the electrical appliances in the home and causing abnormal conditions that threatened their personal safety. Now, through the development of these nursing technologies, users can remotely observe the data of the environment and their own conditions of the care receiver, and deal with some dangerous situations in time. [0003] But existing nursing technology has certain defectives. Nursing technology can be divided into wired and wireless methods acco...
Claims
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IPC IPC(8): G05B19/048H04W4/70
CPCG05B19/048H04W4/70Y02D30/70
Inventor 周智恒俞政劳志辉李波胥静
Owner SOUTH CHINA UNIV OF TECH