Measuring system and method for determining position of burst center of warhead through wireless sensor network
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A technology of wireless sensor network and measurement system, which is applied in the field of positioning the explosion center, which can solve the problems of reducing the sampling frequency, being unable to use the actual combat environment, and limiting the application environment.
Active Publication Date: 2020-04-17
BEIJING INSTITUTE OF TECHNOLOGYGY
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Problems solved by technology
[0003] At present, in the measurement of the azimuth and position of the explosive center in the dynamic explosion test of propellants and explosives, the optical measurement method and the time difference of arrival (TDOA) method are mainly used. Ambient light intensity has a great influence. When the light is insufficient, the sampling frequency must be reduced, which may miss the opportunity; a major defect of DTOA distance measurement technology is that the distance calculation error is large due to the small time difference, especially in some short-distance measurement applications.
In addition, the application environment of the above method is limited to the experimental conditions and cannot be applied in the actual combat environment
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Embodiment 1
[0065] In this embodiment, a network unit is used, and the wireless sensor network determines the measurement method of the measurement system for the position of the center of explosion of the warhead, such as Figure 4 shown, including the following steps:
[0066] 1) Before launching, set the routing protocol between the sensor node and its corresponding sink node; the internal clock timer of the microcontroller of the sensor node counts down, the internal clock timer of the control unit of the sink node counts down, all sensor nodes and When the aggregation node is powered on, all sensor nodes and aggregation nodes are in low power consumption mode, that is, the communication unit and high-power wireless transceiver device do not work, and only have monitoring capabilities;
[0067] 2) All convergence nodes and sensor nodes are installed in independent compartments, and the compartments are carried on the warhead through connectors, and the connectors are electrically conn...
Embodiment 2
[0096] In this embodiment, a plurality of network units are used, and a wireless sensor network is used to determine the measurement method of the measurement system for the explosive center position of the warhead, including the following steps:
[0097] 1) Before launching, set the routing protocol between the sensor node and its corresponding sink node; the internal clock timer of the microcontroller of the sensor node counts down, the internal clock timer of the control unit of the sink node counts down, all sensor nodes and When the aggregation node is powered on, all sensor nodes and aggregation nodes are in low power consumption mode, that is, the communication unit and high-power wireless transceiver device do not work, and only have monitoring capabilities;
[0098] 2) All convergence nodes and sensor nodes are installed in independent compartments, and the compartments are carried on the warhead through connectors, and the connectors are electrically connected to the ...
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Abstract
The invention discloses a measuring system and method for determining the position of a burst center of a warhead through a wireless sensor network. One or more network units are connected with a relay node through wireless communication, the relay node is connected with a remote monitoring interaction terminal through wireless communication, each network unit comprises an aggregation node and three or more sensor nodes, and information transmission is achieved in a multi-hop transmission mode. The position of the explosion center is calculated through the explosion pressure information according to a node positioning calculation method; the robustness and fault tolerance of the algorithm are considered, errors caused by inaccurate signals can be reduced, and interference of the external environment can be resisted; the sensor nodes only undertake low-complexity tasks of self-positioning and signal acquisition and transmission, so that the energy consumption is reduced, and the life cycle of the whole network is prolonged; the aggregation node sends the information to a remote monitoring interaction terminal in a high-power mode, the accurate position of an explosion center is solved, and reasonable matching of node computing power and energy supply and mutual balance of precision and energy consumption are achieved.
Description
technical field [0001] The invention relates to a positioning technology of the explosion center, in particular to a measurement system and a measurement method for determining the position of the explosion center of a warhead through a wireless sensor network. Background technique [0002] Based on the intelligent network damage warhead platform, the extraction and analysis of target damage assessment information is the premise of subsequent decision-making. The precise calculation of the detonation center position of the warhead and the acquisition of the detonation attitude of the warhead can obtain the distribution and propagation characteristics of the detonation force field, and combine the position information of the target to complete the evaluation of the damage to the target. [0003] At present, in the measurement of the azimuth and position of the explosive center in the dynamic explosion test of propellants and explosives, the optical measurement method and the ...
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