CN-224220708-U - Triboelectric pressure sensor for fencing system and fencing suit

Abstract

The invention provides a triboelectric pressure sensor and fencing clothes for a fencing system, wherein the triboelectric pressure sensor comprises a first supporting material layer, a positive friction material layer, a second supporting material layer and a negative friction material layer, wherein the positive friction material layer is arranged on the first supporting material layer, the negative friction material layer is arranged on the second supporting material layer and opposite to the positive friction material layer, the negative friction material layer is used for being contacted with the positive friction material layer when a sword tip or a sword body hits the triboelectric pressure sensor and separated from the positive friction material layer when the sword tip or the sword body leaves the triboelectric pressure sensor, the sensing electrode is electrically connected with the negative friction material layer, and the output electrode is electrically connected with the sensing electrode and used for outputting an electric signal generated by contact between the negative friction material layer and the positive friction material layer. Because the electric signals generated by different hit modes are different, the method and the device convert hit mechanical energy into electric signals, and further obtain objective fencing data, thereby assisting in penalty.

Inventors

• LUO JIANJUN
• CHEN MUQI
• Ji Minglan
• HUANG LIJUN
• WANG ZHONGLIN

Assignees

• 北京纳米能源与系统研究所

Dates

Publication Date

20260512

Application Date

20250411

Claims (10)

1. 1. A triboelectric pressure sensor for a fencing system, said triboelectric pressure sensor comprising: A first layer of support material; A positive friction material layer disposed on the first support material layer; a second layer of support material; The negative electricity friction material layer is arranged on the second supporting material layer, is opposite to the positive electricity friction material layer, and is used for being contacted with the positive electricity friction material layer when the sword tip or the sword body hits the friction electric pressure sensor and separated from the positive electricity friction material layer when the sword tip or the sword body leaves the friction electric pressure sensor; an induction electrode electrically connected with the negative friction material layer, and And the output electrode is electrically connected with the induction electrode and is used for outputting an electric signal generated by the contact of the negative friction material layer and the positive friction material layer.
2. 2. The triboelectric pressure sensor of claim 1 wherein the sense electrode is disposed below the negative friction material layer.
3. 3. The triboelectric pressure sensor of claim 1 wherein the sense electrode is the same size as the negative friction material layer.
4. 4. The triboelectric pressure sensor according to claim 1, characterized in that the size of the triboelectric pressure sensor is adjusted according to the required measurement accuracy.
5. 5. The triboelectric pressure sensor of claim 1 wherein the sensing electrode is an elastic conductive material.
6. 6. The triboelectric pressure sensor of claim 1 wherein the support material is an elastomer.
7. 7. The triboelectric pressure sensor according to claim 1, characterized in that, The positive friction material is a dielectric material generating positive electricity through friction; the negative electricity friction material is a dielectric material which generates negative electricity through friction.
8. 8. The triboelectric pressure sensor of claim 1 wherein the output electrode is a conductive film.
9. 9. A fencing suit, wherein the inner surface of the fencing suit is provided with a triboelectric pressure sensor according to any one of claims 1-8.
10. 10. The fencing suit of claim 9, wherein said triboelectric pressure sensors are uniformly disposed on the inner surface of said suit in an array arrangement.

Description

Triboelectric pressure sensor for fencing system and fencing suit Technical Field The present disclosure relates to the technical field of sports equipment, and in particular to a triboelectric pressure sensor for a fencing system and a fencing suit. Background The prior fencing judge system mainly depends on the spring rapier head induction pressure and electric signal transmission technology, the spring rapier head needs to be provided with a special circuit, the structure is complex, the spring rapier head is triggered by depending on fixed external force, and the spring rapier head cannot be compatible with different requirements of heavy rapiers and swords. Moreover, the conventional fencing competition penalty mainly depends on naked eye observation of a referee, is easily influenced by visual angle limitation and human error, and is difficult to accurately judge the effectiveness (such as the punching force and the punching position) of the punching action in high-speed countermeasures. The wireless technology is easy to be shielded by the body of the athlete or the environment is easy to interfere, delay and misjudgment are caused, and judge accuracy is affected. In addition, in daily training, the fencing instrument cannot accurately judge and record the hit position and mode, real-time and multidimensional biomechanical feedback (such as impact force distribution and action continuity) is lacking in athlete training, technical defects are difficult to quantitatively analyze, and the athlete cannot be well helped to train. In addition, high-speed video playback technology is generally adopted in the current fencing competition to judge the sequence and effectiveness of the hit, and the mode is low in efficiency and is easy to subjectively influence. Moreover, the training effect cannot be accurately reflected in real time in daily training, and a training plan is difficult to formulate according to individual differences of athletes. Disclosure of utility model An object of an embodiment of the present disclosure is to provide a triboelectric pressure sensor for a fencing system, which is used for solving the problems of strong subjectivity and lack of objective data basis when determining a strike behavior by using the prior art in a fencing game. In order to achieve the above object, an embodiment of the present disclosure provides a triboelectric pressure sensor for a fencing system, the triboelectric pressure sensor including a first support material layer, a positive friction material layer disposed on the first support material layer, a second support material layer, a negative friction material layer disposed on the second support material layer opposite to the positive friction material layer, for contacting the positive friction material layer when a tip or a body hits the triboelectric pressure sensor, and separating from the positive friction material layer when the tip or the body leaves the triboelectric pressure sensor, a sensing electrode electrically connected to the negative friction material layer, and an output electrode electrically connected to the sensing electrode, for outputting an electrical signal generated by the contact of the negative friction material layer and the positive friction material layer. Optionally, the induction electrode is disposed below the negative friction material. Optionally, the sensing electrode is the same size as the negative friction material layer. Optionally, the size of the triboelectric pressure sensor is adjusted according to the required measurement accuracy. Optionally, the induction electrode is made of elastic conductive material. Optionally, the support material is an elastomer. Optionally, the positive friction material is a dielectric material generating positive electricity by friction, and the negative friction material is a dielectric material generating negative electricity by friction. Optionally, the output electrode is a conductive film. In another aspect, the present disclosure provides a fencing suit having an inner surface provided with a triboelectric pressure sensor as described above. Optionally, the triboelectric pressure sensors are uniformly arranged on the inner surface of the fencing suit in an array arrangement mode. In a third aspect, the disclosure provides a fencing system comprising an information collection module for obtaining hit information of a fencing, generating hit information when hit by the fencing and transmitting the hit information to a data processing module, a data processing module for receiving the hit information, extracting feature information in the hit information, and counting the feature information and hit times, wherein the feature information comprises hit time, hit position and hit force, and a data analysis module for analyzing the hit information to identify and classify hit categories of the hit information, wherein the hit categories comprise hit, miss and whip. Optionally, the in