Method for physical sensor to realize multiple logical sensor

A sensor and sensor node technology, applied in instruments, collaborative devices, electrical components, etc., can solve problems such as difficulty in meeting diverse sensing needs, reduce the amount of wireless data transmission, ease computing and storage pressure, and reduce occupation. The effect of storage space

Active Publication Date: 2012-09-12
MILITARY TRANSPORTATION RES INST OF PLA GENERAL LOGISTICS DEPT
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Problems solved by technology

[0004] In the actual application process of sensing tags (that is, sensor nodes), a single temperature physical sensor can realize the sampling of the current temperature value, but it is difficult to meet the diverse sensing requirements in practical applications. For example, in the application of sensor tags in container transportation, transportation Related parties have diverse application requirements for monitoring the status of materials in containers. As far as temperature sensors are concerned, sensor tags need to monitor the maximum temperature, minimum temperature, and average temperature of materials in the container for a period of time, and the temperature exceeding the set threshold. and other functional requirements

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  • Method for physical sensor to realize multiple logical sensor
  • Method for physical sensor to realize multiple logical sensor
  • Method for physical sensor to realize multiple logical sensor

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings.

[0021] 1. Logical sensor definition

[0022] For any physical sensor in the sensor tag, a virtual electronic data sheet data file in compact mode is constructed, and the self-describing function of the physical sensor is realized through the electronic data sheet.

[0023] In order to define a logical sensor, each physical sensor in the sensor tag self-describing electronic data sheet file is designed with a "logical sensor mapping" field, which is mainly used to define the type of logical sensor corresponding to the physical sensor. The length of this field is 2 bytes (a total of 16 bits, the code is 0-15 bits), and the code bit through the "logical sensor mapping" is "0 2 " or "1 2 " to set the logical sensor "on" or "off" state corresponding to the physical sensor.

[0024] Table 1 lists the logical sensor types corresponding to the 16-bit value in the "logical s...

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Abstract

The invention discloses a sensor node system with a multiple logical sensor function to meet diverse needs of state data sampling of a sensor node in actual application. The method for a physical sensor to realize a multiple logical sensor provided by the invention is to employa software technology to further diversifiedly calculate the data after physical sensor sampling on the hardware basis of the physical sensor to realize the packaging of a plurality of specific perception functions of the physical sensor. The realization of the method comprises the storage organization mode of physical sensor data, the mapping mode of the physical sensor tothe multiple logical sensor, the configuration ofthe logic sensor and the operation control ofthe logic sensor. The method for realizing multiple logical sensorfunctions provided by the invention can be absolutely applied to the sensor node of wireless sensor network.

Description

technical field [0001] The invention relates to the technical field of wireless communication and sensors, and more specifically relates to a sensor node system with multi-logic sensor functions. Background technique [0002] With the improvement of transportation safety requirements in the supply chain, in addition to grasping the static attributes of the goods in the container (such as the owner, name, type, quantity, etc.), the relevant parties in the transportation also need to control the process status of the goods in the container (such as Temperature, humidity, vibration, and illegal unpacking, etc.), it is difficult to meet the demand simply by using radio frequency identification technology, and it is necessary to integrate sensor technology to meet these requirements. The fusion of radio frequency identification and sensors is an inevitable trend of current technological development. In the sensor radio frequency identification system designed by radio frequency i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W84/18G06K17/00
Inventor 罗五明毕瑛炜
Owner MILITARY TRANSPORTATION RES INST OF PLA GENERAL LOGISTICS DEPT
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