Zuo Kaizhong

Bio: Zuo Kaizhong is an academic researcher. The author has contributed to research in topics: Wireless sensor network & Encryption. The author has an hindex of 2, co-authored 4 publications receiving 11 citations.

Networking method of wireless sensor networks based on backup node

Abstract: The invention discloses a networking method of WSN (Wireless Sensor Networks) based on a backup node. The method comprises the following steps: positioning the positions of sensor nodes; determining the communication distance between two nodes within the sensing range of the sensor nodes; generating a tree topology through the layer upon layer transfer of a broadcast command; in the broadcasting process, judging whether the nearest child node has the qualification to be the backup node to set the backup node by each node except a Sink node; and finally, the service life of the WSN is effectively prolonged by reducing the number of network nodes on the tree topology through the backup node. The networking method of the wireless sensor networks based on the backup node provided by the invention has the advantages of reducing the number of network nodes of the WSN and extending the lifetime of the entire network, and is suitable for the WSN which randomly deploy sensor nodes.

Pond feeder control system based on wireless sensor network

Abstract: The utility model discloses a pond feeder control system based on wireless sensor network, including pond feeder, its characterized in that: still include ultrasonic sensor, AD conversion module, signal transmission system and controller, ultrasonic sensor be connected with AD conversion module, AD conversion module be connected with signal transmission system, signal transmission system be connected with the controller, controller and pond feeder in the material control module that throws be connected. The utility model discloses an advantage does: can survey in the pond data of the shoal of fish in the certain limit, the input fish of intelligence eats, temperature and oxygen bearing data in the detection pond that can be timely provide data for in time adjusting in the pond oxygen and temperature, can discover in time that feeder does not have the material to in time send out police dispatch and offer out the warning.

Privacy protection oriented continuous data gathering method in sensor network

Abstract: The invention discloses a privacy protection oriented continuous data gathering method in a sensor network. An existing privacy protection oriented data gathering algorithm mainly is focused on snapshot gathering, while the traffic and energy consumption of the snapshot gathering algorithm are unsuitable for being directly applied to continuous data gathering. According to the method, through utilization of time correlation of sensing data, whether nodes transmit current sensing data or not is determined by setting a threshold value, thereby effectively reducing the data traffic. According to the method, for the problem that excessive encryption/decryption calculation results in the fact that the calculation energy consumption of the nodes is relatively high, the privacy of the data is ensured by adding random numbers to the transmitted sensing data, the sensing data is prevented from being encrypted/decrypted among the nodes in the data transmission process, the calculation energy consumption of the nodes is saved, and the network service life is prolonged well. According to the method, under the condition that the privacy of the sensing data is ensured, the traffic and calculation energy consumption are effectively reduced, and the good network expansibility is achieved.

Security verifiable continuous data collection method in sensor network

Abstract: The invention discloses a security verifiable continuous data collection method in a sensor network Sensing data in a period is reconstructed through time correlation; the reconstructed data is encrypted and then is sent to father nodes; and the data communication traffic can be effectively reduced under the condition of ensuring the security of the data Moreover, the nodes generate fingerprints of the sensing data, so a sink can verify the collected sensing data; and the digits of the fingerprints are far shorter than the digits of the sensing data and the fingerprints and the sensing data can be fused, so the communication cost of the fingerprints is relatively low

Data fusion method and system

Abstract: The invention provides a data fusion method and system The method comprises the steps of receiving a first to-be-fused data set sent by a first data processing system, wherein the first to-be-fused data set comprises a first content and an encrypted first keyword; receiving a second to-be-fused data set sent by a second data processing system, wherein the second to-be-fused data comprise a secondcontent and an encrypted second keyword, and the second keyword and the first keyword are same keywords respectively stored in the second data processing system and the first data processing system,and the encrypted second keyword and the encrypted first keyword are same encrypted keywords obtained by encrypting using a same encryption manner; and according to the same encrypted keywords, fusingthe first fusion data set and the second fusion data set to obtain a fused data set According to the data fusion method and system, the security is improved

Cage culture system

Abstract: The invention discloses a cage culture system. The cage culture system comprises a control platform, a mobile phone APP, a feeder, a video collecting camera, a bait detecting sensor, a water quality detecting sensor and a water quality processing terminal, wherein the control platform and the mobile phone APP are connected with the signal transceiving ends of the feeder, the video collecting camera, the bait detecting sensor, the water quality detecting sensor and the water quality processing terminal. The cage culture system has the advantages that video display analysis software and feeder control software are added, the video information of a feeder camera is received and displayed, the video information is analyzed automatically to determine the activity conditions of fish in a cage, and feeding control is performed on the feeder according to the activity conditions of the fish; the cage culture system is simple in structure, stable in performance and long in service life.

Automatic feeding system for carpet production

Abstract: The invention discloses an automatic feeding system for carpet production, and belongs to the technical field of production. The automatic feeding system comprises a processing chamber, wherein a pressure sensor is arranged at the bottom of an inner cavity of the processing chamber, a camera is arranged at the top of the inner cavity of the processing chamber, a feeding pipe is arranged at the topof the processing chamber, the feeding pipe penetrates through the top of the processing chamber, the top of the feeding pipe is provided with a storage chamber, the feeding pipe is provided with anelectromagnetic valve, the electric output of the camera is connected with an image acquisition module, the electrical output of the pressure sensor is connected with a data acquisition module, and the image acquisition module and the data acquisition module are electrically connected with an information processing module. The automatic feeding system is simple and compact in structure, and convenient to use, accurate and quantitative feeding can be carried out through the pressure sensor, the process of carpet production can be mastered in real time through the camera, remote monitoring can be realized through wireless communication, and the system is safe and reliable, and has high use value.

Internet-of-things type aquaculture fully-automatic feed-releasing device and application method thereof

Abstract: The invention provides an internet-of-things type aquaculture fully-automatic feed-releasing device. The internet-of-things type aquaculture fully-automatic feed-releasing device comprises an aquaculture pool bottom, a supporting stand column, an L-shaped supporting rod, an infrared sensor, a feed-releasing workbench, a multi-angle feed-releasing drum structure, a feed-filterable feeding hopper structure, an insulating protective control box structure, a feed-distribution stirring blade structure, an anti-mosquito illuminating lamp structure, an embankment, a rotating auger blade, a feed-conveying supporting rod, a feed-conveying motor, a feed-guiding cylinder and a stirring feed-conveying shaft. The aquaculture fully-automatic feed-releasing device provided by the invention has the following advantages: through additional arrangement of more outlets for feeding of a feed, multi-angle feeding of the feed can be realized; the needs of aquaculture of multiple water areas are met; meanwhile, through the rotating auger blade for secondary stirring of the feed and filtering of the feed in the feed feeding process, odor is prevented from entering the automatic feed-releasing device to affect performing of feed releasing; and during operation at night, a matched illuminating mosquito-repellent unit is supplied to facilitate feed feeding.

Road pedestrian detection system and networking method thereof

Abstract: The invention discloses a road pedestrian detection system. The road pedestrian detection system comprises a pedestrian detection device, and an early-warning prompting end of the pedestrian detectiondevice is connected with a vehicle-mounted terminal; the pedestrian detection device is connected with a cloud side through multiple base stations. A networking method of the road pedestrian detection system comprises the following steps of 1, setting parameters, wherein the distance D between every two adjacent track spikes, the maximal communication distance L between every two communication units, and the maximal communication distance S between every two base stations are set; 2, conducting networking among multiple track spikes included in the pedestrian detection device; 3, conducting networking between the pedestrian detection device and the vehicle-mounted terminal; 4, conducting networking between the pedestrian detection device and the cloud side through the base stations. The road pedestrian detection system has the advantages that the communication efficiency is improved, the communication time delay is reduced, and the outgoing safety of pedestrians is guaranteed.