System and method for detecting trigger operation

Abstract

To provide a system that simplifies the mechanical structure while reliably detecting trigger operation by electrically adjusting the detection timing of trigger operation detection for a firearm. [Solution] According to the embodiment, a trigger operation detection system that uses the trigger operation pressure of a gun to detect trigger operation comprises a pressure sensor that converts the trigger operation pressure into an electrical resistance value or a voltage value, a digital converter that converts the electrical resistance value or voltage value into a digital signal, and a determination processing unit that determines that the trigger of the gun has been operated when the value indicated by the digital signal exceeds a set threshold.

Description

Technical Field

[0001] Embodiments of the present invention relate to a system and method for detecting a trigger operation of a firearm.

Background Art

[0002] As a method for detecting an actual shooting operation of a firearm, there is a method of converting an operation of pulling a trigger into an electrical signal and detecting it.

[0003] In such a case, by providing an electrical and mechanical structure such that electrical contacts come into contact when the trigger of the firearm is pulled by a certain amount or more, it is detected that the trigger has been pulled and a shooting operation has been performed.

[0004] Conventionally, in a device for detecting shooting, the contact timing of electrical contacts can be adjusted by a mechanical structure for adjusting the amount (distance) of pulling the trigger of the firearm. Thereby, the output timing of a contact signal for notifying that the electrical contacts have come into contact is adjusted so that the contact signal can be output at a timing close to an actual shooting.

[0005] Thereby, it is detected that the trigger of the firearm has been operated, and it is regarded that shooting has been performed with the output thereof.

Prior Art Documents

Patent Documents

[0006]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0007] However, a contact signal by electrical contacts can only capture the moment when the contacts come into contact.

[0008] The timing of pulling the trigger can vary depending on the person and the situation. Furthermore, the timing at which a trigger operation is considered to have resulted in firing also differs from person to person. Therefore, it was necessary to consider a mechanical structure that allows for a wide range of timing adjustment for the contact signal.

[0009] This invention has been made in view of these circumstances, and aims to provide a system and method that simplifies the mechanical structure and reliably detects trigger operation by electrically adjusting the detection timing of trigger operation detection of a firearm. [Means for solving the problem]

[0010] A first aspect of the present invention is a trigger operation detection system that uses the trigger operation pressure of a gun for trigger operation detection, comprising: a pressure sensor that converts the trigger operation pressure into an electrical resistance value or a voltage value; a digital converter that converts the electrical resistance value or voltage value into a digital signal; and a determination processing unit that determines that the trigger of the gun has been operated when the value indicated by the digital signal exceeds a set threshold.

[0011] A second aspect of the present invention is a trigger operation detection system according to the first aspect, further comprising a setting unit for electrically setting a threshold.

[0012] A third aspect of the present invention is a trigger operation detection system that uses the trigger operation pressure of a gun for trigger operation detection, comprising: a pressure sensor that converts the trigger operation pressure into a voltage; a comparator that compares the voltage with a predetermined reference voltage; and a determination processing unit that determines that the trigger of the gun has been operated if, as a result of the comparison by the comparator, the voltage exceeds the reference voltage.

[0013] A fourth aspect of the present invention is a trigger operation detection system according to the first or third aspect, further comprising an output unit that outputs a determination result from a determination processing unit.

[0014] A fifth aspect of the present invention is a trigger operation detection system according to the fourth aspect, wherein, when the determination processing unit determines that the trigger of a gun has been operated, the output unit delays the timing of outputting the determination result by a predetermined time.

[0015] A sixth aspect of the present invention is a trigger operation detection method that uses the trigger operation pressure of a gun for trigger operation detection, wherein the trigger operation pressure is converted into an electrical resistance value or a voltage value, the electrical resistance value or voltage value is converted into a digital signal, and it is determined that the trigger of the gun has been operated if the value indicated by the digital signal exceeds a set threshold.

[0016] A seventh aspect of the present invention is a trigger operation detection method according to the sixth aspect, wherein a threshold value is electrically set.

[0017] An eighth aspect of the present invention is a trigger operation detection method that uses the trigger operation pressure of a gun for trigger operation detection, wherein the trigger operation pressure is converted into a voltage, the voltage is compared with a predetermined reference voltage, and if the voltage exceeds the reference voltage, it is determined that the trigger of the gun has been operated.

[0018] A ninth aspect of the present invention is a trigger operation detection method according to the sixth or eighth aspect, which outputs a determination result.

[0019] A tenth aspect of the present invention is a trigger operation detection method according to the ninth aspect, which delays the timing of outputting the determination result by a predetermined time when it is determined that the trigger of a gun has been operated. [Brief explanation of the drawing]

[0020] [Figure 1] Figure 1 is a functional block diagram showing an example of the functional configuration of the trigger operation detection system according to the first embodiment. [Figure 2] Figure 2 is a conceptual diagram illustrating the principle of applying the trigger operation detection system of the first embodiment to a firearm. [Figure 3] Figure 3 is a conceptual diagram showing an example of the placement of a trigger operation detection system on a firearm, following the application principle of Figure 2. [Figure 4]FIG. 4 is a flowchart showing an operation example of a trigger operation detection system to which the trigger operation detection method according to the first embodiment of the present invention is applied. [Figure 5] FIG. 5 is a functional block diagram showing a functional configuration example of the trigger operation detection system according to the second embodiment. [Figure 6] FIG. 6 is a conceptual diagram showing an example of the arrangement of the trigger operation detection system according to the second embodiment on a gun. [Figure 7] FIG. 7 is a flowchart showing an operation example of a trigger operation detection system to which the trigger operation detection method according to the second embodiment of the present invention is applied.

BEST MODE FOR CARRYING OUT THE INVENTION

[0021] Embodiments of the present invention will be described below with reference to the drawings. The drawings are schematic or conceptual, and the relationship between the thickness and width of each part, the ratio of the sizes between parts, etc. are not necessarily the same as those in reality. Also, even when representing the same part, the dimensions and ratios may be represented differently depending on the drawings. In this specification and each figure, the same reference numerals are given to the same elements as those described above with respect to the previous figures, and detailed descriptions and overlapping descriptions are omitted as appropriate.

[0022] (First Embodiment) A trigger operation detection system to which the trigger operation detection method according to the first embodiment of the present invention is applied will be described. [[ID=ID=24]]

[0023] FIG. 1 is a functional block diagram showing a functional configuration example of the trigger operation detection system according to the first embodiment.

[0024] FIG. 2 is a conceptual diagram showing the application principle of the trigger operation detection system according to the first embodiment to a gun.

[0025] FIG. 3 is a conceptual diagram showing an example of the arrangement of the trigger operation detection system according to the application principle of FIG. 2 on a gun.

[0026] The trigger operation detection system 10 of the first embodiment is a system that uses the trigger operation pressure P applied to the trigger 102 of a gun 100 for trigger operation detection, and comprises an analog pressure sensor 12 and a detection circuit 20.

[0027] The analog pressure sensor 12 is located on the trigger 102 of the gun 100. When it receives the trigger operating pressure P applied when the trigger 102 is operated, it converts the trigger operating pressure P into an analog signal a, which is either an electrical resistance value or a voltage value, and outputs the converted analog signal a to the detection circuit 20.

[0028] As an example of an arrangement in which the analog pressure sensor 12 is placed on the trigger 102 of the gun 100, as illustrated in Figure 3, a backing plate 13 or the like is placed in front of the trigger 102, and the analog pressure sensor 12 is then placed facing the backing plate 13. The entire trigger 102, backing plate 13, and analog pressure sensor 12 are then covered with a boot 14 made of rubber or the like. With this arrangement, the analog pressure sensor 12 can detect the trigger operating pressure P applied to the trigger 102.

[0029] The detection circuit 20 is fixed to the gun barrel. The analog pressure sensor 12 and the detection circuit 20 are connected by wiring 15 that sends the analog signal a from the analog pressure sensor 12 to the detection circuit 20. The wiring 15 has a surface covering and is fixed to the gun barrel by a fixing band 16 or the like.

[0030] The detection circuit 20 includes an analog-to-digital converter 22, a determination processing unit 24, a threshold setting unit 26, and an output unit 28.

[0031] The analog-to-digital converter 22 converts the analog signal a output from the analog pressure sensor 12 into a digital signal b, and outputs the converted digital signal b to the determination processing unit 24.

[0032] The determination processing unit 24 compares the value indicated by the digital signal b with the threshold value c set by the threshold value setting unit 26.

[0033] The threshold setting unit 26 pre-sets a threshold value c, which is compared with a value indicated by a digital signal b, in order to determine whether or not the trigger 102 of the gun 100 has been operated.

[0034] The determination processing unit 24 determines that if the value indicated by the digital signal b exceeds a set threshold c, the trigger 102 of the gun 100 has been operated, i.e., a bullet has been fired. Otherwise, it determines that the trigger 102 of the gun 100 has not been operated, i.e., a bullet has not been fired. The determination processing unit 24 outputs such determination result d to the output unit 28.

[0035] The output unit 28 outputs a determination result d indicating that a bullet has been fired to the outside. In particular, if the determination result d from the determination processing unit 24 indicates that the trigger 102 of the gun 100 has been operated, the output unit 28 can delay the timing of outputting the determination result d by a predetermined time. The output unit 28 performs this adjustment electrically.

[0036] For the sake of explanation, the analog-to-digital converter 22 and the determination processing unit 24 were described as separate components above, but they can also be integrated into a single configuration.

[0037] Next, an example of the operation of a trigger operation detection system to which the trigger operation detection method of the first embodiment of the present invention is applied will be described.

[0038] Figure 4 is a flowchart showing an example of the operation of a trigger operation detection system to which the trigger operation detection method of the first embodiment of the present invention is applied.

[0039] An analog pressure sensor 12 is positioned on the trigger 102 of the gun 100. When a trigger operating pressure P is applied when the trigger 102 is operated, the trigger operating pressure P is detected by the analog pressure sensor 12 and converted into an analog signal a, which is either an electrical resistance value or a voltage value. The converted analog signal a is then output to the detection circuit 20 (S1).

[0040] The analog signal a output from the analog pressure sensor 12 is converted to a digital signal b by the analog-to-digital converter 22 in the detection circuit 20. Furthermore, the value indicated by the converted digital signal b is compared with a threshold value c set by the threshold value setting unit 26 in the determination processing unit 24 (S2).

[0041] In the determination processing unit 24, if the value indicated by the digital signal b exceeds the threshold c (S2: Yes), it is determined that the trigger 102 of the gun 100 has been operated (S3). Otherwise (S2: No), it is determined that the trigger 102 of the gun 100 has not been operated, and the process proceeds to step S5, which will be described later.

[0042] The determination result d, indicating that a bullet has been fired, is output to the output unit 28, and then output from the output unit 28 to the outside (S4). This output of the determination result d from the output unit 28 to the outside is performed by the output unit 28 at a predetermined time delay. This timing is electrically adjusted.

[0043] If, after step S4, the detection process consisting of steps S1 to S4 is to be continued (S5: No), the process returns to step S1; otherwise (S5: Yes), the detection process is terminated.

[0044] As described above, a trigger operation detection system to which the trigger operation detection method of the first embodiment of the present invention is applied simplifies the mechanical structure and ensures reliable detection of the trigger operation by electrically adjusting the detection timing of the trigger operation of the gun.

[0045] (Second embodiment) A trigger operation detection system to which the trigger operation detection method of the second embodiment of the present invention is applied will be described.

[0046] Figure 5 is a functional block diagram showing an example of the functional configuration of the trigger operation detection system according to the second embodiment.

[0047] Figure 6 is a conceptual diagram showing an example of the placement of the trigger operation detection system of the second embodiment on a firearm.

[0048] The trigger operation detection system 11 of the second embodiment is also a system that uses the trigger operation pressure P applied to the trigger 102 of the gun 100 for trigger operation detection, and comprises an analog pressure sensor 18 and a detection circuit 30.

[0049] The analog pressure sensor 18, like the analog pressure sensor 12, is positioned on the trigger 102 of the gun 100. When it receives the trigger operating pressure P applied when the trigger 102 is operated, it converts the trigger operating pressure P into a voltage e and outputs the converted voltage e to the detection circuit 30.

[0050] The detection circuit 30 is fixed to the barrel. The analog pressure sensor 18 and the detection circuit 30 are also connected by wiring 15 that sends the voltage e output from the analog pressure sensor 18 to the detection circuit 30. In the first embodiment, the wiring 15 was fixed to the barrel by a fixing band 16 or the like, but in this embodiment, the wiring 15 is passed through the grip 104 of the gun 100 and fixed using the elasticity of a boot 14 made of rubber or the like.

[0051] The detection circuit 30 includes a comparator 32, a reference voltage setting unit 34, a determination processing unit 36, and an output unit 38.

[0052] The comparator 32 compares the voltage e output from the analog pressure sensor 18 with a predetermined reference voltage f and outputs the comparison result g to the determination processing unit 36.

[0053] The reference voltage setting unit 34 pre-sets the reference voltage f, which is used for comparison with voltage e, by the comparator 32.

[0054] The determination processing unit 36 ​​determines that if the comparison result g from the comparator 32 indicates that the voltage e exceeds the reference voltage f, the trigger 102 of the gun 100 has been operated, i.e., a bullet has been fired. Otherwise, it determines that the trigger 102 of the gun 100 has not been operated, i.e., a bullet has not been fired. The determination processing unit 36 ​​outputs such determination result h to the output unit 38.

[0055] The output unit 38 outputs the judgment result h to the outside. In particular, if the judgment result h from the judgment processing unit 36 ​​indicates that the trigger 102 of the gun 100 has been operated, the output unit 38 can delay the timing of outputting the judgment result h by a predetermined time. The output unit 38 performs this adjustment electrically.

[0056] Next, an example of the operation of a trigger operation detection system to which the trigger operation detection method of the second embodiment of the present invention is applied will be described.

[0057] Figure 7 is a flowchart showing an example of the operation of a trigger operation detection system to which the trigger operation detection method of the second embodiment of the present invention is applied.

[0058] An analog pressure sensor 18 is positioned on the trigger 102 of the gun 100. When the trigger 102 is operated and a trigger operating pressure P is applied, the trigger operating pressure P is detected by the analog pressure sensor 18, converted into a voltage e by the analog pressure sensor 18, and the converted voltage e is output to the detection circuit 30 (S11).

[0059] The voltage e output from the analog pressure sensor 18 is compared with a predetermined reference voltage f by the comparator 32 in the detection circuit 30, and the comparison result g is output to the determination processing unit 36 ​​(S12).

[0060] In the determination processing unit 36, if the comparison result g from the comparator 32 indicates that the voltage e has exceeded the reference voltage f (S12: Yes), it is determined that the trigger 102 of the gun 100 has been operated, that is, that a bullet has been fired (S13). Otherwise (S12: No), it is determined that the trigger 102 of the gun 100 has not been operated, that is, that a bullet has not been fired.

[0061] The determination processing unit 36 ​​outputs the determination result h, which indicates that a bullet has been fired, to the output unit 38.

[0062] The determination result h, indicating that a bullet has been fired, is output to the output unit 38, and then output from the output unit 38 to the outside (S14). This output of the determination result h from the output unit 38 to the outside is performed by the output unit 38 at a predetermined time delay. This timing is electrically adjusted.

[0063] After step S14, if the detection process consisting of steps S1 to S4 is to be continued (S15: No), the process returns to step S11; otherwise (S15: Yes), the detection process is terminated.

[0064] As described above, a trigger operation detection system to which the trigger operation detection method of the second embodiment of the present invention is applied also simplifies the mechanical structure and makes it possible to reliably detect the trigger operation by electrically adjusting the detection timing of the trigger operation of the gun.

[0065] While embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These embodiments can be carried out in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims and their equivalents. [Explanation of symbols]

[0066] 10,11 Trigger operation detection system 12 Analog pressure sensors 13 backing plate 14 Boots 15 Wiring 16 Fixing bands 18 Analog pressure sensor 20 Detection Circuit 22 Analog-to-Digital Converters 24. Determination Processing Unit 26. Threshold setting section 28 Output section 30 Detection Circuit 32 Comparator 34 Reference voltage setting section 36. Determination Processing Unit 38 Output section 100 guns 102 Trigger 104 Grip a Analog signal b Digital signal c threshold d Judgment result e Voltage f Reference voltage g Comparison results h Judgment result P Trigger operating pressure

Claims

1. A trigger operation detection system that uses the trigger operation pressure of a gun to detect trigger operation, A pressure sensor that converts the trigger operating pressure into an electrical resistance value or a voltage value, A digital converter that converts the aforementioned electrical resistance value or voltage value into a digital signal, A trigger operation detection system comprising a determination processing unit that determines that the trigger of the gun has been operated when the value indicated by the digital signal exceeds a set threshold.

2. The trigger operation detection system according to claim 1, further comprising a setting unit for electrically setting the threshold value.

3. A trigger operation detection system that uses the trigger operation pressure of a gun to detect trigger operation, A pressure sensor that converts the trigger operating pressure into a voltage, A comparator that compares the aforementioned voltage with a predetermined reference voltage, A trigger operation detection system comprising a determination processing unit that determines that the trigger of the gun has been operated if, as a result of the comparison by the comparator, the voltage exceeds the reference voltage.

4. The trigger operation detection system according to claim 1 or 3, further comprising an output unit that outputs the determination result from the determination processing unit.

5. The trigger operation detection system according to claim 4, wherein, if the determination processing unit determines that the trigger of the gun has been operated, the output unit delays the timing of outputting the determination result by a predetermined time.

6. A trigger operation detection method that uses the trigger operation pressure of a gun for trigger operation detection, The trigger operating pressure is converted into an electrical resistance value or a voltage value. The electrical resistance value or the voltage value is converted into a digital signal. A trigger operation detection method that determines that the trigger of the gun has been operated when the value indicated by the digital signal exceeds a set threshold.

7. The trigger operation detection method according to claim 6, wherein the threshold is electrically set.

8. A trigger operation detection method that uses the trigger operation pressure of a gun for trigger operation detection, The trigger operating pressure is converted into a voltage, The voltage is compared with a predetermined reference voltage. A trigger operation detection method that determines that the trigger of the gun has been operated when the voltage exceeds the reference voltage.

9. A trigger operation detection method according to claim 6 or 8, which outputs the result of the determination.

10. The trigger operation detection method according to claim 9, wherein, if it is determined that the trigger of the gun has been operated, the timing of outputting the result of the determination is delayed by a predetermined time.

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