CN207503264U - A kind of individual soldier based on Multi-sensor Fusion shoots information collecting device - Google Patents

Abstract

The utility model relates to an individual shooting information collection device based on multi-sensor fusion, which belongs to the technical field of shooting information collection. The individual shooting information collection device based on multi-sensor fusion includes a single chip microcomputer, an infrared photoelectric sensor, an infrared photoelectric sensor processing circuit, an acceleration sensor, an acceleration sensor processing circuit, an RTC circuit, an external communication circuit, and a wireless communication circuit. The single-soldier shooting information collection device based on multi-sensor fusion of the utility model adopts a multi-sensor combined collection technology, and simultaneously collects the acceleration signal generated by the firearm itself and the thermal infrared signal generated when the bullet exits the chamber when the firearm is fired. Simultaneous feature matching of the above two types of signals within the action time of a projectile can maximize the accuracy and reliability of shot counting.

Description

A single-soldier shooting information collection device based on multi-sensor fusion

technical field

The utility model relates to an individual shooting information collection device based on multi-sensor fusion, which belongs to the technical field of shooting information collection.

Background technique

At present, the methods used for automatic counting of light weapons rifle bullets mainly include acceleration detection, active infrared light detection, vibration detection, sound wave detection, etc., but now a single sensor is usually used for detection, which is often prone to overcounting, which is mainly a single sensor It is easy to be interfered by human or environmental factors, such as acceleration detection, firearm collision when personnel are doing tactical actions, or direct physical knocking on the counting device, which may generate signals that match the actual shooting characteristics and cause miscalculation; For example, artificially block the infrared emission tube and trigger the counting device to count; and for example, when the sound wave is detected, the adjacent ones are easy to influence each other.

The existing automatic counting device for bullet shooting can only count the bullets fired, and cannot obtain more information, such as the time information when the bullet is fired and the information matching for single shooting or N bursts of shooting, the function is relatively single, and it cannot Its field of application is expanded.

Utility model content

The technical problem to be solved by the utility model is to propose a combined acquisition method of infrared photoelectric sensor and acceleration sensor, which can improve the accuracy and reliability of shot counting based on multi-sensor fusion. Soldier shooting information collection device.

The technical scheme proposed by the utility model for solving the above-mentioned technical problems is: a single-soldier shooting information collection device based on multi-sensor fusion, including a single-chip microcomputer, an infrared photoelectric sensor, an infrared photoelectric signal processing circuit, an acceleration sensor, an acceleration signal processing circuit, and an RTC. circuit, external communication circuit, wireless communication circuit, the acceleration sensor is connected with the single-chip computer through the acceleration signal processing circuit, the infrared photoelectric sensor is connected with the single-chip computer through the infrared photoelectric signal processing circuit, and the RTC circuit, the external communication circuit and the wireless communication circuit are respectively connected with the single-chip computer.

The improvement of the above technical solution is: the infrared photoelectric sensor is an infrared photodiode.

The improvement of the above technical solution is that the acceleration sensor is a large-range miniature capacitive acceleration sensor.

The improvement of the above technical solution is: the infrared photoelectric signal processing circuit includes an amplifier, a first filter and a first comparator connected in sequence.

The improvement of the above technical solution is: the acceleration signal processing circuit includes a second filter and a second comparator connected in sequence.

The improvement of the above technical solution is: the RTC circuit adopts the RTC function module integrated by the single chip microcomputer, and the RTC function module is externally connected with the first crystal oscillator of 32.768KHz.

The improvement of the above technical solution is: the external communication circuit adopts a standard RS232 communication interface.

The improvement of the above technical solution is: the wireless communication circuit adopts ZigBee wireless communication mode, including ZigBee wireless transceiver integrated chip, antenna matching circuit and a 16MHz second crystal oscillator.

The utility model adopts the beneficial effects of the above-mentioned technical solution as follows:

The single-soldier shooting information collection device based on multi-sensor fusion of the utility model collects the acceleration signal generated by the firearm itself and the thermal infrared signal generated when the bullet exits the chamber simultaneously when the firearm is fired, and the above-mentioned two Simultaneously perform feature matching and correlation analysis on similar signals, which can maximize the accuracy and reliability of shot counting, and solve the problem that single-sensor detection methods are prone to overcounting under the interference of human or environmental factors; the device can detect When shooting information, count the shot bullets, record the shooting time of the bullets, and match the shooting type through the time difference between adjacent shooting bullets, including single shots or N bursts. This information can not only be used for bullet management during target training, but also It can be used as the evaluation basis for the service life of firearms, and can be further combined with the individual positioning system to generate real-time fire strike events such as the total amount of ammunition fired, the type of fire, the time of fire, and the fire strike position, which can be used as a basis for the rationality of tactical use and fire strike capabilities in tactical training. basis for the assessment.

Description of drawings

Below in conjunction with accompanying drawing, the utility model is further described:

Fig. 1 is a schematic structural view of an individual shooting information collection device based on multi-sensor fusion according to an embodiment of the present invention;

Fig. 2 is the schematic structural diagram of the infrared photoelectric signal processing circuit of the individual shooting information acquisition device based on multi-sensor fusion according to the embodiment of the present invention;

Fig. 3 is a schematic structural diagram of the acceleration signal processing circuit of the individual shooting information collection device based on multi-sensor fusion according to the embodiment of the present invention;

Fig. 4 is the structural representation of the RTC circuit of the individual soldier shooting information acquisition device based on multi-sensor fusion according to the embodiment of the present invention;

Fig. 5 is a schematic structural diagram of the wireless communication circuit of the individual shooting information collection device based on multi-sensor fusion according to the embodiment of the present invention;

Among them: 1-MCU, 2-Infrared photoelectric sensor, 3-Infrared photoelectric signal processing circuit, 4-Acceleration sensor, 5-Acceleration signal processing circuit, 6-RTC circuit, 7-External communication circuit, 8-Wireless communication circuit, 9 -RTC function module, 10-infrared signal, 11-amplifier, 12-first filter, 13-first comparator, 14-first external interrupt trigger, 15-signal width detection, 16-acceleration signal, 17-the first Two filters, 18-the second comparator, 19-the second external interrupt trigger, 20-the first crystal oscillator, 21-ZigBee wireless transceiver integrated chip, 22-antenna matching circuit, 23-the second crystal oscillator.

Detailed ways

Example

The individual shooting information acquisition device based on multi-sensor fusion in this embodiment of this embodiment, as shown in Figures 1, 2 and 3, includes a single-chip microcomputer (1), an infrared photoelectric sensor (2), an infrared photoelectric signal processing circuit (3 ), acceleration sensor (4), acceleration signal processing circuit (5), RTC circuit (6), external communication circuit (7), wireless communication circuit (8), acceleration sensor (4) through acceleration signal processing circuit (5) and The single-chip microcomputer (1) is connected, the infrared photoelectric sensor (2) is connected with the single-chip microcomputer (1) through the infrared photoelectric signal processing circuit (3), and the RTC circuit (6), external communication circuit (7) and wireless communication circuit (8) are respectively connected with the single-chip microcomputer (1) Connection. The infrared photoelectric sensor (2) is an infrared photodiode. The acceleration sensor (4) is a large-range miniature capacitive acceleration sensor. The infrared photoelectric signal processing circuit (3) includes an amplifier (11), a first filter (12) and a first comparator (13) connected in sequence. The acceleration signal processing circuit (5) includes a second filter (17) and a second comparator (18) connected in sequence. The RTC circuit (6) adopts the RTC function module (9) integrated with the single chip microcomputer (1), and the RTC function module (9) is externally connected with a 32.768KHz first crystal oscillator (20). The external communication circuit (7) adopts a standard RS232 communication interface. The wireless communication circuit (8) adopts ZigBee wireless communication mode, including ZigBee wireless transceiver integrated chip (21), antenna matching circuit (22) and 16MHz second crystal oscillator (23).

When the individual shooting information acquisition device based on multi-sensor fusion in this embodiment works, the acceleration sensor (4) senses the acceleration signal generated when the bullet is fired, and sends the signal to the acceleration signal processing circuit (5) for processing, and then sends the signal to the acceleration signal processing circuit (5) for processing. To the single-chip microcomputer (1) for feature recognition; the infrared photoelectric sensor (2) senses the thermal infrared signal generated when the bullet is ejected from the chamber, and sends the signal to the infrared photoelectric signal processing circuit (3) for processing, and then sends it to the single-chip microcomputer (1) Carry out feature recognition; RTC circuit (6) is composed of 32.768KHz crystal oscillator and capacitor, and is connected with RTC clock source pin of microcontroller (1) to realize real-time clock timing; external communication circuit (7) adopts RS232 communication chip, and microcontroller ( 1) The UART port is connected to realize data interaction with external devices, and complete the deletion of shooting information and uploading of stored information in the single chip microcomputer (1); the wireless communication circuit (8) adopts ZigBee wireless communication mode, and is composed of ZigBee wireless transceiver integrated chip, The antenna matching circuit is composed of a 16MHz crystal oscillator. The RF end uses a feeder as the antenna. The antenna is connected to the RF port of the ZigBee wireless transceiver integrated chip through the antenna matching circuit. Wireless data interaction, complete the deletion of shooting information and uploading of stored information in the single-chip microcomputer (1); the single-chip microcomputer (1) detects the width of the input infrared photoelectric signal, and the signal that matches the set threshold is used as a shooting prediction and recorded For the current real-time clock data, if the acceleration input signal is received within the set time, it is determined to shoot one round of bullets, and the count value is increased by 1, otherwise the pre-judgment is cleared. At the same time, the microcontroller uses the system clock to subdivide the time of shooting bullets before and after. The threshold determines whether the two shots before and after the shooting are single-shot or burst-fired. Finally, the recorded total ammunition volume, shooting type (single shot, burst) and shooting time are stored in the on-chip Flash.

When the warhead is out of the chamber, the infrared photoelectric sensor senses and outputs an infrared signal (10), which is sent to the amplifier (11) for signal amplification, and the amplified signal is sent to the first filter (12) for clutter filtering, and then Send the signal to the first comparator (13) for threshold comparison, and finally output the processed signal to the external middle port of the microcontroller for the first external interrupt trigger (14), and at the same time send the signal to the I/O input port of the microcontroller for signal width Detection (15).

When the firearm shoots, the acceleration sensor senses the firearm body to generate an acceleration signal (16), sends the signal to the second filter (17) for clutter filtering, and then sends the signal to the second comparator (18) for threshold comparison, Finally, the processed signal is output to the external middle port of the single chip microcomputer for a second external interrupt trigger (19).

The utility model is not limited to the above-mentioned embodiments. All technical solutions formed by equivalent replacements fall within the scope of protection required by the utility model.

Claims (8)

1. a kind of individual soldier based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Including microcontroller（1）, it is red Outer photoelectric sensor（2）, infrared electro signal processing circuit（3）, acceleration transducer（4）, acceleration signal processing circuit （5）, RTC circuit（6）, external communication circuit（7）, radio communication circuit（8）, the acceleration transducer（4）Added by described Speed signal processing circuit（5）With the microcontroller（1）Connection, the infrared photoelectric sensor（2）Pass through the infrared electro Signal processing circuit（3）With the microcontroller（1）Connection, the RTC circuit（6）, external communication circuit（7）With wireless communication electricity Road（8）Respectively with the microcontroller（1）Connection.

2. the individual soldier according to claim 1 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Institute State infrared photoelectric sensor（2）For infrared photodiode.

3. the individual soldier according to claim 2 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Institute State acceleration transducer（4）For wide range minisize condenser type acceleration transducer.

4. the individual soldier according to claim 3 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Institute State infrared electro signal processing circuit（3）Including sequentially connected amplifier（11）, first filter（12）And first comparator （13）.

5. the individual soldier according to claim 4 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Add Speed signal processing circuit（5）Including sequentially connected second filter（17）With the second comparator（18）.

6. the individual soldier according to claim 5 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Institute State RTC circuit（6）Using microcontroller（1）Integrated RTC function modules（9）, the RTC function modules（9）It is circumscribed with 32.768KHz first crystal oscillator（20）.

7. the individual soldier according to claim 6 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Institute State external communication circuit（7）Using standard RS232 communication interfaces.

8. the individual soldier according to claim 7 based on Multi-sensor Fusion shoots information collecting device, it is characterised in that：Institute State radio communication circuit（8）Including ZigBee wireless receiving and dispatching integrated chips（21）, antenna-matching circuit（22）With the second of 16MHz Crystal oscillator（23）.