CN104613816A - Digital optical sight and method for achieving target tracking, locking and precise shooting through same - Google Patents

Abstract

The invention discloses a novel digital optical sight. A network topology core structure of the optical sight is mainly composed of a digital optical sight body, a mobile terminal application program (APP), a cloud server and a social network, and an outdoor shooting and hanging internet of things (OSHN) is established based on an intelligent mobile interconnection technology. When a user shoots a target, a bullet hits the target region displayed in a partition mode undoubtedly and precisely due to the fact that partition is displayed with the impact point of the corrected actual bullet as the center point. Due to the fact that in the process, basically no manual participation is needed, a camera of the digital optical sight is aligned with a target to be shot, the follow-up processes are conducted through a digital sighting telescope, the digital optical sight aims at the target, computes the target distance, focuses automatically and locks the target automatically, the hit point is very precise as well, and the purposes of quickly tracking, automatically locking and precisely shooting the target are truly achieved.

Description

Digital sight and its method for target tracking, locking and precise shooting

technical field

The present invention relates to a new type of shooting aiming device, especially a shooting type digital aiming device designed based on the principles of high-definition image imaging, high-speed digital signal real-time processing, large-capacity data storage, ballistic trajectory database, cloud server and intelligent interconnection Devices.

Background technique

The sight or the optical sight is a vital device in the firearm device. It has been used on a large scale since the middle of the 19th century and has developed very maturely. At present, optical sights are mainly divided into three categories: telescopic sight, collimating optical sight, and reflex sight. Among them, telescopic sight and Reflex sights are the most popular. The above two types of sights are mainly used during the day, so they are collectively referred to as day scope/sight. In addition, there are night vision sights (night scope/sight) for night sighting, which are aimed at the above two types. Night vision devices are added to the mirror, and according to the type of night vision devices, they can be divided into low-light sights and infrared sights (which can also be subdivided into active infrared and thermal imaging). No matter what kind of scope, the main purpose is to allow firearm users to hit the target quickly, accurately and conveniently, so when designing: accurate locking and hitting the target is the core idea of the scope. The development of general-purpose optical sights is very mature now, and its advantages are mainly two: (1) The convenient and flexible reticle (Trajectory) setting allows users to flexibly locate targets and measure distances when using them. (2) The lower price is conducive to large-scale use in firearms equipment. However, the defects of traditional optical sights are also very prominent:

1. Defects in reticle setting

The current optical sights are calibrated by manually adjusting the two devices on the sight, so that one controls the horizontal movement of the reticle, and the other controls the vertical movement of the reticle, and the combination of the two is used to adjust the position of the reticle. , so that it coincides with the estimated point of impact. There are two problems in using these two devices to adjust the movement of the reticle: on the one hand, whether the two devices are mechanical or intelligent, in the process of controlling the movement of the reticle, if the wear caused by long-term use or the device itself is not in the factory Sometimes corrective errors will bring errors to the reticle control. Another aspect is that the mode of adjusting the reticle is adjusted one by one by the control device. The scale itself is rated, so that the adjustment reticle point is a set value, and the bullet trajectory of different firearms is It is not fixed, so that the reticle cannot coincide with the impact point exactly during actual use, but only "approximately" coincides. When the potential target is relatively close to the firearm, the approximate coincidence error is not very large, but at a relatively long distance, such as when it is more than 200 meters, it will bring a considerable error, making the distance between the reticle and the actual impact point Very far away, this also does not bring the result of accurate shooting. The current method of correcting this error basically relies on the shooter's own shooting experience and the estimation of the trajectory of the bullet to make up for it. Once the shooter changes, the error cannot be made up.

2. Optical magnification and limitations on low-illumination environments

When the traditional optical sight is designed to have a zoom function, the telescopic sight obtains a magnified image by adjusting the focal length through the rotation of the magnification ring (Power Selector Ring). Limited by its structure, the maximum magnification ratio (Magnification Ratio) that can be achieved for civilian use is 8X, and 16X-20X for military use, and only a few manufacturers can do it, and the cost is very expensive. The reflex sight is limited by its principle and cannot achieve high zoom magnification. The core idea of the sight is to allow the user to zoom in on the potential target and clearly observe the details of the target that needs to be hit. Only when the target is clearly seen can the user aim at the target and bring conditions for precise strikes. However, the current optical sight is limited. Due to the limitation of lens magnification, it is impossible to see the target clearly at a far place, which will bring relatively large shooting errors. At the same time, the current optical sight is not self-adaptive to the light perception of the lens in a low-light environment. It can only be solved by adding a night vision device. In a low-light environment during the day, it is too wasteful to use a night vision device. , and the cost is unbearable.

3. Non-storability of ballistic data

Because the traditional optical sight cannot store the ballistic trajectory data of the ammunition, every time the user wants to shoot, he needs to adjust the position of the reticle according to the distance of the target. The reticle and impact point approximately coincide. And this kind of on-the-spot adjustment of the reticle and estimation of the impact point according to the distance and size of the target is completely limited by the experience of the shooter himself. If you know it well, then the error of using a traditional optical sight will be relatively small, and these experiences require a lot of practice to achieve, and at the same time, it also has a lot to do with the shooter's own psychological quality when aiming. Traditional optical sights have a great relationship with people.

In view of the relatively large defects of the above-mentioned traditional optical sights, in recent years, with the rapid development of digital technology, digital image technology, material technology, signal processing and other technologies, some people in the industry have proposed and designed digital scopes. Its core idea is to use digital technology, electronic storage technology and image processing technology to replace traditional optical sights. The device of the digital sight is basically a camera plus an electronic signal processor plus a display screen to replace the multi-stage optical magnification lens on the optical sight, and store a calibrated reticle on the processor to replace the reticle on the optical sight . Since the digital sight uses a processor to precisely control the reticle through image processing technology, and the position of the reticle is stored in the non-volatile memory through the impact point in advance, so if the design idea is correct, basically all the problems of the traditional optical sight can be corrected. defect. However, due to defects in design ideas or errors in the starting point of the design itself, there are relatively large problems in the existing digital sights, mainly as follows:

1. There are defects in the reticle design

The reticle design of most existing digital sights allows the user to adjust or preset multiple reticle positions for the user to choose, and the reticle position itself cannot reflect the ballistic parameters of the firearm, which brings problems It does not fundamentally eliminate the error of the approximate coincidence of the reticle and the impact point in the traditional optical sight, but just replaces the lens of the optical sight with the camera and display. Under such a design concept, no matter how you adjust the color, size, and thickness of the reticle, the fact that there is an error between the reticle position on the display and the actual bullet impact point cannot be changed.

2. Singleness of ballistic trajectory data

There are some existing digital sights that allow the reticle and the impact point to coincide in the reticle design, that is, the impact point is stored in the memory in advance, and the impact point is obtained through actual testing, and then when aiming at the target, let the reticle jump to the impact point for use take aim and shoot. The idea of this design division is accurate, but when these digital sights store ballistic data, they only store one type of bullet impact point data, and the number of impact points is relatively small (existing due to testing methods, ballistic error correction methods, memory capacity, etc.) limited, generally only about 20 at most), it is impossible to accurately outline the complete ballistic trajectory of the bullet. At a relatively short distance, the shooting is often more accurate, but at a longer distance, such as after more than 500 meters, due to the impact of the bullet Affected by the acceleration of gravity, the trajectory of the ballistic trajectory declines more severely. At this time, if the upward angle of the firearm is not correct, the shooting error will be relatively large, and the goal of accurate shooting will also be impossible to achieve. The singleness of stored data limits the trajectory of the same bullet shot by different people, the possibility of using different bullets on firearms, and even shooting in different environments.

3. There is a large error in the ballistic trajectory data and it cannot be corrected in real time

Some existing digital sights allow users to go to the Internet to download the ballistic data of the bullets that match their firearms, store them in the local storage, and then calculate the ballistic data error through an external computer. I want to use an external computer to correct it through theoretical calculations. Ballistic error at different distances, and then use this corrected ballistic data as a reference reticle to aim at the target. The starting point of this idea is very good, but the current problem is that these bullet trajectory data are often not strictly tested and verified. In the process of use, using these ballistic trajectory data as a reference scale, there will be comparison with the actual impact point big error. At the same time, the external computer processing method itself cannot achieve real-time processing. When the user locks the target and wants to shoot immediately, especially for some fast-moving targets, the chance of effectively hitting is often lost in an instant. The computer and the sight first need to give the current target situation to the computer, and then the computer processes the result and sends the result to the sight, thus losing the chance of an effective hit in the middle. Therefore, it is very important for those users who have no actual shooting experience or whose psychological quality is not stable to test different kinds of bullets of firearms commonly used in the market under different environmental conditions at the same time to obtain an accurate and complete ballistic trajectory database. It is important. At the same time, if the aimer deploys a high-speed processor and uses an algorithm correction method to correct the ballistic parameters in different environments and the impact point error at different distance points in real time, it will also directly affect the result of accurate shooting.

4. Unable to achieve fast tracking, automatic locking and precise shooting of the target

Due to design defects, all existing digital sights cannot really achieve the purpose of fast tracking, automatic locking and precise strike on the target, so they are not really intelligent digital sights. The reason why the intelligent digital sight has a huge market in the future is that the use of high-speed image signal processing and data processing, as well as large-capacity storage capabilities, can truly achieve fast tracking of targets, automatic ranging, and automatic aiming. , Automatic locking, so as to achieve precise strike capability, similar to the guidance technology of automatic navigation and radar technology on missiles. This makes the sight no longer rely on human factors, even if a person with no shooting experience uses the smart digital sight, as long as he operates according to the regulations, he can achieve the purpose of accurate shooting. However, existing digital sights cannot do this due to various defects in design. The present invention proposes a new type of digital sight equipment device. The network topology core structure of the device is mainly composed of four major elements: digital sight, mobile terminal APP, cloud server and social network, thus constructing a system based on Smart mobile internet technology for "Outdoor Shooting and Hunting IoT" (OSHN). The digital sight is mainly composed of: a high-definition camera with automatic or manual zoom capabilities, the camera also has a strong sensitivity to perceive targets in weak light environments, a high-speed multi-core processor processes the real-time images and other data of the camera, high-definition Display screen, high-precision touch screen, long-distance ranging capability and high-precision laser ranging sensor, wireless communication module, global positioning GPS module, large-capacity non-lost memory, various sensors that can test the environment in real time, etc. composition. The APP of the mobile terminal is mainly an application program deployed on a mobile smart phone or a mobile IPAD (tablet computer), and its function is mainly to realize data forwarding and temporary storage in the wild. The role of the cloud server is to realize data backup, program update and other functions. The core idea of the present invention is to allow the user to use the digital sight to realize fast tracking, automatic locking and precise shooting of the shooting target. Its basic idea is: use a high-definition camera to shoot potential targets in real time, use a laser ranging sensor to test the target distance in real time, Use the gravity acceleration sensor, gyroscope and other sensors to determine the moving speed of the target through the "trilateral positioning method", and use the wind speed sensor to measure the current wind speed and wind direction and other data, and these data are stored in the memory in real time. The user observes the target through the display screen. Before shooting the target, the user needs to pre-test and store or download from the server the ballistic trajectory data of commonly used bullets matched with this type of firearm, and store it in the memory in the form of a database. When the user confirms that the high-definition camera has tracked the target, and the laser ranging sensor has accurately measured the target distance, the LOCK lock is started, and the processor calls out the ballistic trajectory data matching the distance according to the target distance, and at the same time collects the sensor data in real time , especially the "Wind Piao" data, the impact point error at different distances is corrected through the "ballistic parameter error real-time correction and compensation" algorithm, and the corrected impact point is presented on the display in the form of divisions. At the same time, the processor will process the real-time shooting image data, and the reticle will be displayed in the center of the screen through image processing. At the same time, the processor will automatically drive the optical lens of the camera, so that the target is displayed very clearly on the display screen. When the user shoots the target, since the reticle is displayed with the corrected actual bullet impact point as the center point, the bullet must accurately hit the target area displayed on the reticle. Since there is basically no need for manual participation in this process, the user only needs to point the camera of the digital sight at the target to be struck, and everything will be followed by the digital sight itself to aim at the target, calculate the target distance, automatically adjust the focus, Automatically lock the target, and the strike point will be very precise, so that the idea of fast tracking, automatic aiming, automatic locking and precise strike on the target is really realized.

Contents of the invention

Aiming at the above-mentioned defects of the traditional optical sight and the existing digital sight, the present invention proposes a new type of digital sight, through which the digital sight can truly achieve fast tracking, automatic locking and precise shooting of the target. Purpose. So that the shooting itself no longer depends on the human factor, that is, it does not require a lot of practice for the shooter to acquire shooting experience, nor does it require a strong psychological quality of the shooter, and the precise strike on the target can be achieved only through simple operations.

The technical solution of the present invention: a digital sight, including a high-definition camera, a multi-core processor, a memory for running system software and storing data, a large-capacity non-lost memory for storing operating systems and application programs, image data and other data Permanent memory, high-definition display screen, high-precision touch screen configured on the display screen, laser ranging module that can accurately measure the distance of the target, sensors that can test the environment in which the digital sight is located, and can locate the area where the target is located GPS module, wireless module for transmitting images, photos or other data, high-capacity lithium battery;

The camera lens has a zoom lens with low sensitivity and night vision function. The focal length can be controlled by the processor program and realize the automatic focus function or manually complete the focus function. The sensitivity and night vision function can be automatically controlled by software. Take a high-definition target image, and the target image is transmitted to the multi-core processor for processing after analog-to-digital signal conversion. The multi-core processor includes multiple hardware cores: one core is used for real-time digital signal processing of high-definition image and data algorithm processing, Other cores are used to respond to sensor signals, wireless signals, button signals, touch screen signals, positioning signal data and display the processed data on the display screen in real time, and are also responsible for sending the processed data to the server or other mobile devices through the wireless module. terminal;

The sensor is a photosensitive sensor, a temperature sensor, a humidity sensor, a pressure sensor, a wind speed and direction sensor, a three-axis gyroscope, a gravity acceleration sensor, a planar acceleration sensor or an electronic compass; the wireless module is a 3G module, a 4G module, a Wi- Fi module and Bluetooth module.

Preferably, the memory is divided into two categories: one is the memory that loses data after power failure, and is used to run the operating system, application program, algorithm program and temporarily store various data; the other is that the data will not be lost after power failure. Lost large-capacity storage, including integrated large-capacity storage and external large-capacity storage, non-volatile storage is used to store operating systems, applications, and various data that need to be permanently stored, such data includes all types of firearms matching bullets Ballistic trajectory database, data collected by various sensors, application configuration data, photos or videos of the process or results before and after the firearm is fired.

Preferably, the video pixels captured by the high-definition camera of the digital sight are higher than the pixels displayed on the display screen, that is, the image pixel resolution captured by the camera is greater than the image pixel resolution displayed on the display screen, at least 10 times larger, Through digital signal processing technology, the target image magnification of the digital sight is equal to the optical magnification of the high-definition camera lens multiplied by the digital image magnification.

Preferably, the digital sight includes a global positioning GPS module, and the position of using the digital sight outdoors will be accurately presented on the display screen in the form of longitude and latitude, and at the same time, the shooting location will also be displayed by downloading the map offline. will be marked on the map and can be viewed, saved and played back.

Preferably, the digital sight contains a ballistic trajectory database that is obtained through a live ammunition shooting target test and matches the type of firearm and ammunition it belongs to. The ballistic trajectory database can be obtained in two ways: one is by the sight owner Obtained through the live ammunition shooting test by itself, and another is downloaded from the cloud server. The ballistic trajectory database on the cloud server is the ballistic trajectory of various firearms or ammunition uploaded by other digital sight owners or manufacturers in the world after live ammunition shooting tests. Trajectory data, including the types of common civilian or police firearms and the flight and falling trajectories of the bullets of various ammunition matched in different environments and at different distances; a single ballistic trajectory database is constructed from several impact point vectors at different distances. The impact point vector is a set of parameters with distance as the scalar index number. The elements of these parameter sets are: the distance between the impact point and the firearm, the pixel coordinates of the impact point displayed on the display screen when the image is captured, and the distance between the impact point and the image. The focal length of the lens when capturing, the elevation angle and horizontal angle of the impact point when the firearm is fired, the wind drift of the impact point when the firearm is fired, the external temperature and atmospheric pressure of the impact point when the firearm is fired.

Preferably, the distance between the digital sight and the target is measured by the laser ranging sensor, and when the target distance is close to the distance measured by the laser ranging sensor, the processor uses the target distance as the index number to call out the target from the ballistic trajectory database The closest impact point vector, all elements of this vector will be processed by the high-speed data algorithm of the processor, and then presented on the display screen in real time: through image processing technology and ballistic parameter error real-time correction and compensation algorithm, the pixel coordinates of the impact point will be divided into points The reticle is displayed at the center of the screen, and the target that the reticle is aimed at is the actual bullet impact point corrected by the wind factor and other environmental factors at this distance, and the brightness, color and type of the reticle will change with the image. Change, the focal length of the camera lens will be instantly adjusted to match the focal length of the impact point vector, the upward viewing angle and horizontal angle of the firearm will be prompted on the display screen in real time, and the environmental data collected by the sensor during shooting, such as the upward viewing angle of the firearm, the horizontal angle, and the target distance , target moving speed, current GPS position, wind speed, wind direction, ambient temperature, time, and electronic compass azimuth data will be presented on the display in real time.

Preferably, the digital sight establishes an Internet of Things for outdoor shooting and hunting, and the topology of the network is composed of cloud servers, digital sights, mobile terminal applications and social networking sites. In addition, the respective tasks of the other three include: the cloud server undertakes functions such as backup and update of various configuration data of digital sight users, application program update, operating system program update, shared upload and update of ballistic trajectory database; mobile terminal application The program is mainly responsible for the data router function of the digital sight and the cloud server. All kinds of data collected by the digital sight, various configuration data backups, updates, uploads and downloads of various ballistic trajectory databases will be connected with the cloud server through the mobile terminal application program. At the same time, the mobile terminal application is also responsible for the collector task of data interaction between the digital sight and various social networking sites. The user collects the user's shooting video or photos or geographical data information data taken by the digital sight through the mobile terminal application, and the user through the mobile terminal application The program shares these data on various social networking sites; social networking sites mainly share videos or photos uploaded by mobile terminal applications; through the cooperation of the above four elements, a complete outdoor shooting and hunting Internet of Things is formed.

A method for target tracking, locking and precise shooting using the above-mentioned digital sight, which includes the following steps:

(1) Adjust the camera so that the center of the display is aligned with the target area to be struck, and the program drives the camera to automatically adjust the focal length to make the target clearly displayed on the display;

(2) After the reticle is aimed at the target, the laser ranging sensor quickly measures the target distance, and the processor calls out the impact point vector that matches the target distance from the ballistic trajectory database. The vector elements include the pixels of the impact point at this distance on the display screen Coordinates, focal length, gun elevation angle;

(3) The processor transfers the test impact point position of the target distance from the database to appear on the display screen in the form of a point, and at the same time, the processor immediately starts the ballistic parameter error real-time correction and compensation algorithm program, collects relevant sensor data, and after data processing Correct and compensate the pixel coordinate position of the actual impact point on the display screen under the current shooting environment;

(4) The processor updates the reticle position, color, brightness, camera focal length, etc. in real time. Through the real-time image processing technology, the actual impact point is displayed on the display screen as the center point of the screen. The processor drives the camera focal length to automatically adjust the focus to match The parameters of the actual impact point, re-adjust the camera so that the reticle is aimed at the area to be hit by the target;

(5) Shooting, the bullet will hit the target accurately at this time, and the processor drives the camera to take pictures after shooting and store them in the memory;

Through the above-mentioned method, the results of fast tracking, automatic locking and precise shooting of the target by the digital sight are achieved.

Preferably, the algorithm of the real-time error correction and compensation of the ballistic parameters is a real-time "multivariate input and univariate output" numerical filter, and its basic principle is as follows: the processor collects the three-axis gyroscope and the gravity acceleration sensor in real time to determine The rotation attitude and upward viewing angle of the firearm in three-dimensional space; the processor collects the intelligent compass sensor in real time to determine the moving direction of the firearm in three-dimensional space; the processor collects the acceleration sensor in real time to determine the moving acceleration of the firearm in three-dimensional space. possible movement trajectory; the processor collects the laser ranging sensor in real time to measure the relative distance between the target and the firearm; through the above data, the processor determines the relative moving speed between the firearm and the target and the distance between the two through the "trilateral positioning method". Move the angle, thereby determine the moving displacement coordinates of the target in three-dimensional space; the processor of the digital sight collects the value of wind speed and wind direction sensor in real time, that is, the wind drift, according to the theoretical formula of the wind drift on the flight distance and flight angle of the bullet in space, Calculate the offset error produced by the bullet in different spatial coordinates; the digital sight processor calls out the ballistic trajectory database according to the plane distance between the target and the firearm in space, and the actual test results in the impact point on the display screen at the plane distance The pixel coordinates, combined with the offset error caused by wind drift, and by correcting the offset error, the pixel coordinates of the bullet's precise impact point on the display screen at the target distance can be obtained.

Preferably, the acquisition of the ballistic trajectory database can be achieved in two ways: one is obtained through a live ammunition shooting test, and the other is downloaded from a cloud server. The method for obtaining the ballistic trajectory database through a live ammunition shooting test includes the following steps:

(1) Input the bullet trajectory database name, firearm name and ammunition name to be obtained;

(2) Place the target at a pre-measured fixed distance, which is the first test point;

(3) Align the reticle on the display screen with the center point of the target, and adjust the focal length of the camera so that the reticle at the center of the screen coincides with the center point of the target. The pixel difference of the coordinate zero point on the image is stored as a coordinate value in the database of the memory;

(4) Fix the firearm in one position, and do not move it during the test until the complete ballistic trajectory database is obtained;

(5) The processor records the current camera focal length and stores it in the memory;

(6) The processor collects the data of the three-axis gyroscope sensor, the acceleration of gravity sensor and the electronic compass sensor, calculates the elevation angle of the firearm and stores it in the memory;

(7) The processor collects the wind speed and wind direction sensors, calculates the current wind drift data and stores it in the memory;

(8) Shoot, the processor immediately locks the target image after shooting, and presents it on the display screen in the form of a photo; find the bullet hole that the bullet passes through the target on the photo, that is, the point of impact, and then click on the target on the touch screen The impact point, the processor calculates the pixel difference between the impact point and the coordinate zero point, and saves it as the coordinate value of the current impact point, which is stored in the memory, and at the same time enters the distance of the impact point, exits after editing and saving;

(9) Move the target distance to a new test point, considering that the target position moves while the camera imaging center point does not move. At this time, the target center point may not necessarily be on the camera imaging center point, that is, the coordinate zero point. Therefore, it is required that every After a target movement, the coordinate position of the impact point imaged on the display is retained as the coordinate position left on the target after the last shot, which can greatly reduce the focus display of the target on the display. Find the center point of the target, click the center point of the target on the touch screen, the center point of the image displayed on the screen will jump to the center point of the target, manually adjust the focal length of the camera, so that the two coincide again, and it is very clear to see on the screen To the center of the target, the processor records the distance from the center of the image on the display screen to the center of the target, records it as the distance difference between the two test points and the center of the target, and records the focal length of the current camera at the same time;

(10) repeat above-mentioned steps (4) to (8), record each parameter of the second impact point, save in the database;

(11) repeat above-mentioned steps (9) to (10), completely obtain belonging firearm bullet ballistic trajectory data, all save in the ballistic trajectory database, and database is as index with the distance of described digital sight to target;

The method for downloading the ballistic trajectory database from the cloud server comprises the following steps:

(1) The digital sight already has a wireless network environment;

(2) Log in to the cloud server, the server will list all the ballistic trajectory database lists in the database, divided according to the types of firearms and ammunition;

(3) Select the appropriate ballistic trajectory database according to the type of firearms and ammunition, download and save it in the memory, you can download multiple ballistic trajectory databases to the local memory as needed, and name it with different databases. Each bullet trajectory database represents Different bullet types, different firearms;

(4) In the local ballistic trajectory database, select the ballistic database matching the firearm as the default database for actual shooting.

Various sensors of the present invention: temperature, wind speed, wind direction, pressure sensor, etc., are mainly to obtain the original data of wind drift and ammunition whirl, while the three-axis gyroscope, gravity acceleration sensor and electronic compass sensor are mainly to obtain target movement The spatial coordinate position value data of speed, possible movement angle and trend, the above-mentioned data will be used as the important data of multiple input variables in the follow-up "real-time correction and compensation of ballistic parameter error" algorithm model, and play a role in the generation of the position coordinates of the actual impact point. Crucial role.

The present invention includes a plurality of wireless communication modules (3G/4G/Wi-Fi/Bluetooth), so that the digital sight keeps in touch with the cloud server and mobile terminal APP through the wireless communication modules, and downloads or uploads various data.

The present invention includes a global positioning GPS module, and the user can accurately locate the current test location and the latitude and longitude information used in actual shooting, and these latitude and longitude data will be presented in the form of shooting locations through offline Google maps.

The camera included in the present invention is a high-definition, large optical magnification, high sensitivity and exposure rate, multiple focus points, flexible zoom mode, can be equipped with night vision devices and can be completely controlled by software. With a high-magnification optical magnification lens and subsequent digital magnification, it is possible to magnify high-power images from 1X to 300X, so that users can see the target position clearly from a very far away, greatly increasing the shooting distance and accuracy.

The display screen contained in the present invention is a high-definition display screen, and includes a high-precision touch screen at the same time. The user's setting operation is centered on the touch screen, including menu operations, various function configurations, etc., eliminating the need for external digital sights The inconvenience of computers or other mobile devices facilitates the operation of users.

The processor module included in the present invention is a multi-core processor, capable of real-time processing of high-definition video images and displaying them on the LCD screen, and simultaneously collecting data from various sensors, GPS, wireless modules, etc., and responding to user input through the touch screen in real time. Various command data.

The digital sight of the present invention has set up a kind of " ballistic parameter error real-time correction and compensation " algorithm model, and this algorithm model is a real-time " multi-variable input single-variable output " numerical filter, and these variables are " different distances In the next test, the coordinates of the impact point, the type of ammunition, the wind drift, the angular velocity of the firearm, the value of the gravitational acceleration sensor, and the angle of view of the firearm are obtained. The single output variable is: the impact point after ballistic error correction at different distances. Through this algorithm model, the The impact of the environment on the error of the ballistic parameters makes the impact point be reflected very accurately.

The digital sight according to the present invention is based on the actual impact point, and through the "ballistic parameter error real-time correction and compensation" algorithm, the actual impact point is accurately corrected and compensated, and then the corrected impact point is used as a reticle , displayed on the center point of the display screen, truly achieving "the reticle is the actual point of impact", ensuring the complete overlap between the two, and eliminating the problem of inaccurate setting of the reticle of various existing sights.

The digital sight of the present invention establishes a method for obtaining ballistic trajectory database through live ammunition shooting test or downloading. Because the bullet flies very fast, the flight trajectory of the bullet cannot be captured directly with the image. Therefore, using the live ammunition test, by adjusting the distance and position of the target, the whereabouts of the bullet at different distances can be obtained. By obtaining the coordinates of the impact point of each distance segment, combined with the environmental data during the field test, the focal length of the camera and Digital magnification, etc., are stored in the memory in the form of a database, thereby constructing a complete bullet trajectory database. The acquisition of the bullet trajectory database can be divided into two types: one is that the user tests the ballistic parameters that match the firearms he uses, and the other is downloading the ballistic trajectory database that matches the firearms he uses from the cloud server.

The user selects the "method of obtaining the ballistic trajectory database by live ammunition shooting test", which includes the following steps:

A. Place the target at a pre-measured fixed distance, which is the first test point;

B. Align a reticle that appears on the center point of the display screen of the digital sight with the center point of the target, and adjust the focal length of the camera at the same time, so that the reticle in the center of the screen and the center point of the target can be clearly seen on the display screen. ;

C. Fix the firearm in one position until a relatively complete ballistic trajectory database is obtained;

D. The processor records the current camera focal length and stores it in the memory;

E. The processor collects data from the three-axis gyroscope sensor, the acceleration of gravity sensor and the electronic compass sensor, and obtains the current elevation angle of the firearm and stores it in the memory;

F. shoot;

G. The processor immediately drives the camera to lock the target image after shooting, and presents it on the display as a photo;

H. Find the impact point where the bullet passes through the target on the photo displayed on the display screen, and then click the impact point on the touch screen, the processor will immediately calculate the pixel difference between the impact point and the coordinate zero point, and save it as the first impact point The coordinate value, store the coordinate value in the memory, input the distance between the sight and the target at the same time, save the current impact point parameters and enter the database;

I. Move the target distance to a new test point;

J. Considering that the position of the target moves, but the imaging center of the camera does not move, the center of the target may not necessarily be on the imaging center of the camera, that is, the zero point of coordinates. The user finds the center of the target on the display screen, and Click the center point of the target on the touch screen, the center point of the image displayed on the display will jump to the center point of the target, and at the same time manually adjust the focal length of the camera so that the two coincide again, and the target can be seen very clearly on the display screen again center point. The processor records the distance from the center point of the image on the display screen to the center point of the target, records it as the distance difference between the target center points of the two test points, and records the focal length of the current camera at the same time;

K. Repeat the above steps C to H, record the parameters of the second impact point, and save them in the database;

L. If more impact points are needed, repeat the above-mentioned steps I to K, thereby completely obtain the ballistic trajectory data of the firearm bullet, and all save it in the database. The ballistic trajectory database uses the distance from the digital sight to the target as an index.

If the user chooses the method of downloading the ballistic trajectory database from the cloud server, the following steps are included:

A. The user is sure that the digital sight already has a wireless network environment;

B. Log in to the cloud server, and the server will list all the "ballistic trajectory databases" in the database, which are divided according to the types of firearms and ammunition. The user selects the appropriate ballistic trajectory database according to his own firearms and ammunition types, downloads and saves them in the memory. You can download multiple different bullet trajectory databases to the local memory according to your own needs, and you can name them with different databases. Each bullet trajectory database can be different types of bullets, different firearms, etc.;

C. If you cannot find a ballistic trajectory database similar to your own firearm on the server in the above steps, you need to test and obtain it yourself.

The digital sight of the present invention has established a perfect battery power management solution. When the user actually uses the digital sight, the battery life and actual use time are greatly extended, and it can be used in the field for a long time, and it is convenient. The flexible charging method also helps users extend the use time of the device by using other power sources.

The digital aiming device of the present invention establishes a method for fast tracking, automatic locking and precise shooting of the target, and the method includes the following steps:

A. Adjust the camera so that the reticle is aligned with the target area to be struck, and the processor automatically adjusts the focal length of the camera so that the target is clearly displayed on the display;

B. The laser ranging sensor will quickly measure the target distance, and then refresh it on the display at a certain frequency. The processor will immediately lock the distance, and at the same time call out the impact point vector that matches the target distance from the ballistic trajectory database. The vector elements include the The pixel coordinates of the impact point of the distance, the focal length, and the elevation angle parameters of the firearm;

C. The position of the test impact point of the distance called by the processor from the database will temporarily appear on the display in the form of a "point", and at the same time immediately start the "real-time error correction and compensation of ballistic parameters" algorithm program to collect relevant sensor data. Correct the actual impact point coordinate position in the current shooting environment after data processing;

D. Update the current reticle position, color, brightness, camera focal length, etc., and through the real-time image processing technology, the actual impact point is displayed on the display screen as the center point of the screen. At the same time, the processor drives the focal length of the camera to automatically adjust the focus to match the The parameters of the actual impact point. At this time, the user needs to readjust the camera according to the position of the reticle on the screen so that the reticle is aimed at the area to be hit by the target;

E. Shoot, the bullet will hit the target very accurately at this time, and the processor will drive the camera to take pictures after shooting and store them in the memory;

Through the process from A to E, the user only needs to point the camera of the digital sight at the target to be hit, and the digital sight will automatically calculate the target speed and target distance, call out the ballistic trajectory database according to the distance, and correct the ballistic parameters at different distances The error is displayed in the center of the screen in the form of a division with the corrected impact point. Everything is automatically completed by the program, and the shooting will be very accurate. It really realizes the method of fast tracking, automatic locking and precise shooting of the target.

Compared with the prior art, the present invention has the following advantages:

1. Established a "ballistic parameter error real-time correction and compensation" algorithm model, the algorithm model is a "multi-variable input single-variable output" numerical filter, these variables are tested at different distances to get the point of impact on the display screen Pixel coordinates, wind drift, gravity acceleration sensor value, and firearm's upward angle of view. The single output variable is: the impact point after ballistic error correction at different distances. Through this algorithm model, the influence of the environment on the error of the ballistic parameter is basically eliminated, making different The pixel coordinates of the actual impact point of the bullet under the distance will be reflected very accurately.

2. Based on the actual measured impact point coordinates, through the "ballistic parameter error real-time correction and compensation algorithm", the actual measured impact point coordinates are accurately corrected and compensated in the current shooting environment, and then the corrected impact point coordinates are used as Reticle, displayed on the center point of the display screen. Existing optical sights or digital sights can only guarantee the approximate coincidence of the reticle and the actual point of impact, especially at large optical magnifications, the error between the two will be relatively large. Based on the actual measured impact point coordinates, through the "ballistic parameter error real-time correction and compensation" algorithm, accurate error correction and compensation are made to the actual measured impact point coordinates in the current shooting environment, and then the corrected impact point coordinates are used as divisions and displayed on the display It is displayed on the center point of the screen, and through real-time data processing technology, the reticle and the point of impact after error correction are completely overlapped, so that the reticle is the point of impact, and the problem of inaccurate setting of the reticle of various existing sights is eliminated. And this step is a key step to achieve accurate shooting.

3. Innovation proposes a concept of "ballistic trajectory database" for different firearms and ammunition types, and provides a complete method to obtain this database. Existing optical sights do not have the concept of ballistic trajectory data storage because they do not have a large-capacity memory. Even though existing digital sights have storage capabilities, the stored ballistic data is very single, and there is no complete construction of the same type of firearm. Ballistic trajectory data or bullet trajectory data matched by different firearms, so the present invention innovatively proposes the idea of a "ballistic trajectory database" for ammunition. The establishment and improvement of this "ballistic trajectory database" is obtained through live ammunition testing. It is mainly divided into two methods: one is that the user can test the trajectory of different bullets of the firearms by himself, and save them in the form of data in the large-capacity digital sight. In the memory, upload to the cloud server to share the data obtained by his test at the same time. As a kind of reference, the present invention proposes in detail the steps and methods of how to test and obtain the ballistic trajectory database. Another way is to invite shooters with rich shooting experience and accurate shooting ability to conduct field tests. Through field tests of different firearms and bullets in different environments, relatively complete test data can be obtained, so as to establish a complete "ballistic trajectory" Database" is placed in the cloud server for users to download.

4. Established a method of using a digital sight to achieve "fast tracking, automatic locking, and precise shooting" of the target. All the techniques and devices of the digital sight that the present invention proposes are all in order to realize the method of "quick tracking, automatic locking, accurate shooting" to the target. Through the configuration of laser ranging sensors, various environmental measurement sensors, software-controllable high optical magnification and high-sensitivity lenses, a complete ballistic trajectory database, real-time correction and compensation technology for ballistic parameter errors, and the method of complete coincidence of reticle and impact point, The high-precision touch screen setting and operation mode combined with the high-definition video image real-time processing technology realize the concept of "fast tracking, automatic locking, and precise shooting" of the target. Through this method, accurate shooting will no longer rely on human factors. In all shooting and aiming links, human factors are greatly reduced. Even for a person without any shooting experience, according to the correct operation method, accurate shooting can also be achieved. , greatly expanding the use of firearms among different groups of people, and avoiding the current defect of needing a lot of shooting to gain actual combat experience.

5. The real-time presentation of the shooting environment data reflects a sense of realism of people in the shooting scene. In the present invention, various important data during actual shooting are displayed on the display screen in real time, and these data include: time, geographic location, firearm angle, sight lens magnification, image magnification, target distance, target moving speed, ambient temperature, Wind speed, etc. These data are for users to observe and adjust. This method, which is similar to missile guidance and targeting, makes it very intuitive, user-friendly and easy to control when the user actually uses the firearm. At the same time, the biggest advantage is that the shooting will be more accurate. This is also a very humanized improvement proposed by the present invention which is very good for users.

6. Established a method for all operations centered on the touch screen. The display screen included in the digital aiming device proposed by the present invention is a high-definition display screen integrated with a high-precision touch screen, and the user interface operations are provided through the touch screen except manual focus, power on and target lock buttons. Icon-based menus or commands to complete operations. The icon operation interface similar to that of a smart phone makes it very convenient for users to use in practice, and it is also very humanized.

7. Proposed and established a concept of "outdoor shooting and hunting Internet of Things" based on mobile Internet technology. The digital sight proposed by the present invention is not simply a simple terminal device, but a complete "outdoor shooting and hunting Internet of Things" based on intelligent mobile interconnection technology. In the process of using the digital sight, the user can create an account, upload and backup various data on the digital sight with the help of the user's own mobile terminal APP, cloud server or even a third-party social networking site, such as: when shooting All kinds of videos or photos, equipment configuration of the sight, ballistic trajectory data obtained by the user’s field test, etc. At the same time, the user can also download various data from the cloud server, such as: the ballistic trajectory database of various bullets, etc., and can also Update the system program for the entire digital sight. Users can also exchange experiences on cloud servers or third-party social networking sites to form a social circle. Through this design concept of intelligent mobile interconnection, many users who use the digital sight form a complete "outdoor shooting and hunting Internet of Things". Every user who uses the digital sight can Establish connections with cloud servers or other social networks, and share your own shooting results and experience, which greatly expands the current situation that the sight is only a pure terminal for personal use, making shooting itself no longer a purely personal behavior, but a kind of Entertainment and social activities will arouse a lot of sympathy among people who love hunting and field shooting, which will greatly expand the market sales of this industry and bring rich market returns.

Description of drawings

Fig. 1 is a schematic diagram of the side appearance of the digital sight;

Fig. 2 is that described digital aiming device observes figure from visual mirror;

Fig. 3 is after the digital sight pops up the sight glass and observes the graphics through the display screen;

Fig. 4 is the figure that described digital sight looks from the direction of camera lens;

Fig. 5 is a functional block diagram of the connection of various components inside the digital sight;

Fig. 6 is a relation diagram between the complete image collected by the camera and the image actually displayed on the display screen;

Fig. 7 is the logical flow chart of the method for creating a "ballistic trajectory database" in a live ammunition shooting test;

Fig. 8 to Fig. 12 are schematic diagrams of realizing Fig. 7;

Fig. 13 is a flow chart of a method for realizing "fast tracking, automatic locking and precise strike on target";

FIG. 14 to FIG. 17 are schematic diagrams for realizing FIG. 13 .

Detailed ways

In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with the embodiments and accompanying drawings. The embodiments are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

As shown in Figures 1, 2, 3, 4, and 5, the digital sight 1 has a metal casing 2, a sight glass 3, a manual focus knob 4, a touch screen 5, a high-definition camera 6, and a laser Rangefinder 7, an external interface cover 8 (the interface includes a power supply interface 9, a mini-USB interface 10 and an SD card interface 11), a mechanical device 12 fixed to the firearm (fixed on the firearm 50 through the card slot) together), an external wireless antenna device 13, and a lithium battery pack 30. Metal shell 2 contains a multi-core processor 14, wind speed and wind direction sensor 15, three-axis gyro sensor 16, gravity acceleration sensor 17, pressure sensor 18, temperature sensor 19, GPS module 20, wireless communication module 21: a dual-frequency 2. 4G/5G wireless Wi-Fi module 22, a BTE Bluetooth module 23, lithium battery pack 24, charge and discharge management circuit 25, lossy large-capacity memory 26, large-capacity non-lost internal memory 27 and external memory 28, touch The display screen driving circuit 29 and the lithium battery pack 30 are composed.

As shown in Figure 1, the side of the digital sight 1 has an interface cover 8 that is pulled upwards, and there is a power input interface 9 inside, which is mainly used to charge the lithium battery 30, and a mini-USB interface 10, used to communicate with External computer connection, for users to copy various internal data or input data, an SD card interface 11, used for external large-capacity non-lost memory 28, for storing video, photo data or geographical information, etc., users can pass SD The card copies the data, and generally transmits the data through the Wi-Fi wireless signal.

As shown in Figures 1, 4 and 5, the high-definition camera 6 is made up of a group of lens with night vision zoom function and an image sensor, after the image is collected, it is sent to the multi-core processor 14 through the analog-to-digital conversion circuit, and the multi-core processing The device 14 sends an instruction to control the focusing of the high-definition camera 6. At the same time, the user can also manually adjust the focal length of the camera 6 with the manual focus button 4. Rotating the button 4 clockwise means increasing the focal length, and rotating counterclockwise means reducing the focal length. The touch display screen 5 is a display screen with a high-precision touch screen. The multi-core processor 14 directly drives the display screen 5 through a display drive circuit, outputs image display signals and receives command signals from the touch screen. The laser range finder 7 is composed of a laser emitting and receiving module and a signal conversion module. The distance between the target and the light source is tested by sending the light source to the target and then reflecting back to calculate the time difference. The calculated signal is directly connected to the multi-core processing Device 14. The wind speed and wind direction sensor 15 mainly collects the wind speed and wind direction data when shooting, and directly transmits them to the multi-core processor 14 through the data line, and obtains "wind blowing" data after being processed by the relevant programs of the processor 14. The three-axis gyroscope 16, the acceleration of gravity sensor 17 and the electronic compass 18 form a sensor group for measuring the displacement coordinates of the space target. The multi-core processor 14 measures these sensors in real time, and then uses the data to obtain the moving trend and movement of the target through the "trilateral positioning algorithm". The possible displacement coordinates of speed and space are stored in the internal non-volatile memory 27 . The GPS module 20 is directly connected with the multi-core processor 14, and transmits the latitude and longitude coordinate information to the multi-core processor 14, and the multi-core processor 14 stores the data into the internal non-volatile memory 27 after certain data calculation and processing. The volatile memory 26 , the internal non-volatile memory 27 and the external non-volatile memory 28 are directly connected to the multi-core processor 14 and are mainly used for data storage, backup and program operation. The wireless communication module 21 includes a wireless Wi-Fi module 22 , a Bluetooth module 23 , a 3G module 24 and a 4G module 25 . The Wi-Fi module 22 is directly connected to the multi-core processor 14 through the SDIO interface, and exchanges data with the external router through the external antenna 13 . The lithium battery charging and discharging management module 25 is directly connected to the lithium battery 30, charges the lithium battery 30, and receives the discharge of the lithium battery 30 at the same time, and supplies power to the entire digital sight 1 through the power management module. The external interface device 8 includes a power interface 9 mainly used for charging the lithium battery 30, a mini-USB interface 10 for communicating with an external computer, copying the internal large-capacity non-volatile memory 27 data to the computer, and an SD card interface 11 , which is mainly inserted into an external large-capacity non-volatile memory 28.

As shown in Fig. 2, the digital sight 1 is equipped with a sight glass 3, and the sight glass 3 is stuck on the front panel 32 through the bayonet 31. In addition to the sight glass 3, there is also a power button on the front panel 32. 33. A locking LOCK button 34 and an eyeglass pop-up button 35. Under normal circumstances, the user observes the image on the high-definition display screen 5 inside through the eyeglass 3. The eyeglass 3 has a certain magnification function, and the image on the display screen can be magnified to a certain extent and then presented to the user's eyes. If the user wants to configure or operate the function of the digital sight 1, then press the sight glass pop-up button 35, and the sight glass 3 will pop out from the bayonet socket 31, exposing the high-definition display screen 5 inside, as shown in FIG. 3 .

In FIG. 3 , the user observes the target 36 through the display screen 5 after the eyeglass 3 is ejected. The target 36 is displayed in real time on the display screen 5 through the camera 6. It can be seen that a reticle 37 appears at the center point of the display screen 5. The user can move the camera 6 so that the reticle 37 is aimed at the target 36, and simultaneously adjust the focal length of the camera 6 The target 36 is clearly presented on the display screen 5 .

As shown in FIG. 4 , the digital sight 1 includes a high-definition camera 6 , a laser rangefinder 7 and an external wireless antenna 13 .

As shown in Figure 6, the target image 36 taken by the camera 6 is a high-definition video image 38 with a resolution of at least 720P pixels, and the center point of imaging is the center point 39 of the optical axis. Smaller than the image 38 taken by the camera 6, the image 40 displayed on the display screen 5 can be moved and displayed on 38 as required by image processing, so that the image center point division 37 of the display screen 5 and the center point 39 of actual imaging Most of the time they don't overlap.

As shown in FIG. 7 , the logic flow diagram of the method for the digital sight 1 to realize the live ammunition shooting test and obtain the "ballistic trajectory database" is shown. Its graphical illustrations are shown in Figures 8 to 12. The implementation steps are as follows:

(1) The user places the target 50 at a certain distance from the digital sight 1, and simultaneously accurately measures the distance and records it, as shown in FIG. 8 ;

(2) In the main menu of the system, select to enter the "Create New Reticle" interface, enter the ballistic database name, firearm type and ammunition type to be created, save and start creating the database. Adjust the position of the camera 6 so that the center of the observation target 50 on the display screen 5 coincides with the division 37 at the center of the display screen. If the observation is not very clear, rotate the focus button 4 appropriately to enlarge the focal length of the lens so that the center of the target 40 The division 37 at the center and the center of the screen coincides, as shown in Figure 9;

(3) Fix the position of the firearm so that the firearm will not be moved during the entire test to obtain the bullet ballistic database, so as to ensure that the ballistic trajectory remains intact;

(4) shoot a gun, and now the processor 14 will immediately lock the shot image, as shown in FIG. 10 . Look for the impact point position 41 on the target on FIG. In the memory, the data of the upward angle of view of the firearm and the focal length of the current camera 6 are also recorded at the same time.

(5) In the pop-up picture 43 in Fig. 12: input the distance between the current point of impact and the digital sight 1, i.e. the target distance 44, save and then exit;

(6) Unlock the current locking screen shown in Figure 10, enter the next impact point test screen, and repeat the above steps (1) to (5) until the complete ballistic trajectory data of the bullet is obtained and stored in the database.

As shown in FIG. 13 , the logic flow diagram of the method for the digital sight 1 to realize “fast tracking, automatic target locking and precise shooting” of the target, and FIG. 14 to FIG. 17 are detailed implementation schematic diagrams of FIG. 13 . The steps to achieve are:

(1) As shown in Figure 14, adjust the camera 6 and observe the display screen 5 so that the reticle 37 at the center of the display screen 5 is aimed at the target 36, and the processor 14 automatically adjusts the focal length of the camera 6 so that the target 36 is more clearly presented on the screen On the display screen 5;

(2) As shown in Figure 15, the laser ranging sensor 7 will quickly measure and calculate the target distance 45, and then refresh it on the display screen 5 at a certain frequency. The user observes the display screen 5. If the user is sure that the target distance 45 has been measured accurately, press the front With the LOCK button 34 on the panel 32, the processor 14 will immediately lock the target distance 45, and at the same time call out the impact point vector matching the target distance 45 from the ballistic trajectory database. The vector elements include the impact point pixel coordinates 42, focal length, firearm The elevation angle parameter of ;

(3) As shown in Figure 16, the test impact point position 42 of this distance that the processor 14 calls out from the ballistic trajectory database will temporarily appear on the display screen 5 in the form 46 of a point, and immediately start "ballistic parameter real-time error correction" and compensation” algorithm program, collect relevant sensor data, and correct the actual impact point coordinate position in the current shooting environment after data processing 48;

(4) As shown in Figure 17, the processor 14 immediately updates the current reticle 37 position, color, brightness, focal length of the camera 6, etc., and presents it on the display screen 5 with the coordinates of the actual impact point 48 as the center point of the screen through real-time image processing technology. At the same time, the processor 14 drives the focal length of the camera 6 to automatically adjust the focus to match the parameters of the actual impact point 48. At this time, the user needs to readjust the camera 6 according to the position of the reticle 47 on the screen so that the reticle 47 is aimed at the target. 36 areas to strike;

(5) shoot, and now the bullet will hit the target 36 very accurately, and the processor 14 will drive the camera to take pictures after shooting and store them in the memory;

(6) From step (1) to step (5), the digital sight 1 is limited to within 3 seconds from tracking the target, aiming to locking the target, basically does not require too much manual participation, and truly achieves "fast tracking, Automatic locking, precise strike" target.

Claims (10)

1. a digital sight, it is characterized in that: it comprises high-definition camera, polycaryon processor, for operational system software and the internal memory storing data, for storing the non-loss memory of Large Copacity of operating system and application program and view data and other data, high-definition display screen, configuration high accuracy touch-screen on a display screen, the laser ranging module of precision ranging can be carried out to target, can to the sensor of environmental testing residing for described digital sight, can to the GPS module of location, target region, for transmitting the wireless module of image and photo or other data, high-capacity lithium battery,

Described cam lens possesses the zoom lens of low speed and night vision function, focal length can be controlled by processor program and realizes automatic focusing function or manually complete focusing function, speed and night vision function can be controlled automatically by software, the target image of described camera captured in real-time high definition, target image transfers to described polycaryon processor process after modulus signal conversion, described polycaryon processor comprises multiple hardware-core: a kernel is used for the Real-time digital signal processing of high-definition image and data algorithm process, other kernels are used for response sensor signal, wireless signal, push button signalling, touch screen signal, data after process also show by framing signal in real time on a display screen, also be responsible for the data after by process simultaneously and be sent to server or other mobile terminals by wireless module,

Described sensor is light sensor, temperature sensor, humidity sensor, pressure sensor, wind speed and direction sensor, three-axis gyroscope, Gravity accelerometer, plane acceleration transducer and electronic compass; Described wireless module is 3G module, 4G module, Wi-Fi module and bluetooth module.

2. digital sight according to claim 1, it is characterized in that: the memory of described digital sight is divided into two classes: a class is the memory of Missing data after power down, for operation system, application program, algorithm routine and store Various types of data temporarily; An other class is the mass storage that after power down, data can not be lost, comprise integrated mass storage and external mass storage, non-loss memory is used for deposit operation system, application program and needs the Various types of data of persistence, and this kind of data comprise photo or the video of process or result before and after the ballistic trajectory database of all kinds of firearms coupling bullet, data that various kinds of sensors gathers, the configuration data of application program, small arms firing.

3. digital sight according to claim 1, it is characterized in that: the video pixel of the high-definition camera shooting of described digital sight is higher than the pixel showing screen display, namely the image pixel resolution ratio of camera shooting is greater than the image pixel resolution ratio shown on a display screen, at least large more than 10 times, by Digital Signal Processing, the optical magnification making the target image multiplication factor of described digital sight equal high-definition camera camera lens is multiplied by digital picture multiplication factor.

4. digital sight according to claim 1, it is characterized in that: described digital sight comprises a global location GPS module, use the position of described digital sight all to be presented on a display screen with longitude and latitude form accurately out of doors, download map by off-line simultaneously, shooting place also will mark out on map, can for checking, preserving and playback.

5. digital sight according to claim 1, it is characterized in that: described digital sight comprise by ball firing target test obtain, the ballistic trajectory database of firearms and ammunition type belonging to coincideing, described ballistic trajectory database has two kinds of modes to obtain: one is tested by ball firing voluntarily by sight owner to obtain, one is also had to be download from Cloud Server to obtain, ballistic trajectory database on Cloud Server is the ballistic trajectory data of all kinds of firearms uploaded after ball firing test of the whole world digital sight owner or producer described in other or ammunition, contain the bullet of the kind of civilian or police conventional firearms and the multiple ammunition of coupling thereof under various circumstances, the flight fall trajectory at different distance place, single ballistic trajectory database is built by the point of impact vector of several different distance and forms, point of impact vector is a parameter sets using distance as scalar call number, the element of these parameter sets is: this point of impact is from the distance of firearms, the pixel coordinate that this point of impact presents on a display screen when image-capture, the lens focus of this point of impact when image-capture, the upward view angle of this point of impact when small arms firing and the horizontal angle number of degrees, the wind of this point of impact when small arms firing wafts, the ambient temperature of this point of impact when small arms firing and atmospheric pressure.

6. digital sight according to claim 1, it is characterized in that: the distance of described digital sight and target is surveyed by laser range sensor and obtained, when target range and laser range sensor record apart from time close, processor recalls the immediate point of impact vector of target range from ballistic trajectory database using current goal distance as call number, after all elements of this vector all pass through the high-speed data algorithm process of processor, present in real time on a display screen: revised in real time by image processing techniques and trajectory parameter error and with backoff algorithm, the pixel coordinate of point of impact is presented at place of screen center with graduation form, the bullet point of impact of the target that graduation is aimed to be exactly this distance by wind waft factor and the revised reality of other environmental factors, and the brightness of graduation, color and type can change with the change of image, cam lens focal length can adjust to point of impact Vectors matching focal length instantaneously, the upward view angle of firearms and the horizontal angle number of degrees can real-time promptings on a display screen, and the environmental data that when shooting, sensor gathers is as the upward view angle of firearms, the horizontal angle number of degrees, target range, target translational speed, current GPS location, wind speed, wind direction, environment temperature, time, electronic compass bearing data can also present on a display screen in real time.

7. digital sight according to claim 1, it is characterized in that: described digital sight establishes the Internet of Things of a kind of outdoor shooting and hunting, this topology of networks is made up of Cloud Server, described digital sight, application program for mobile terminal and social network sites four factor, except described digital sight, other threes task separately comprises: Cloud Server bears all kinds of collocation data backup of described digital sight user and renewal, application program update, operating system program upgrade, the shared of ballistic trajectory database is uploaded and the function such as renewal, the data router function of digital sight and Cloud Server described in application program for mobile terminal primary responsibility, the Various types of data that described digital sight gathers, all kinds of collocation data backup, the renewal of all kinds of ballistic trajectory database and upload download all can by application program for mobile terminal and Cloud Server contact, application program for mobile terminal is also responsible for the collector task of described digital sight and all kinds of social network sites data interaction simultaneously, user shoots video or photo or geodata information data by the user that application program for mobile terminal gathers the shooting of described digital sight, user by application program for mobile terminal by these data sharings on all kinds of social network sites, the video that application program for mobile terminal is mainly uploaded by social network sites or photo are shared, by cooperatively interacting of above-mentioned four factor, form a complete open air shooting and hunting Internet of Things.

8. use digital sight described in claim 1 to the method for target following, locking and precision fire, it is characterized in that:

(1) adjust camera, make the graduation of display screen center aim at the target area that will hit, driven by program drives camera focal length automatic focusing, and target is presented on a display screen clearly;

(2) after graduation aims at the mark, laser range sensor measures target range fast, processor recalls the point of impact vector with target range coupling from ballistic trajectory database, and vector element comprises point of impact pixel coordinate on a display screen, focal length, the firearms upward view angle of this distance;

(3) the test point of impact position that processor recalls target range from database occurs on a display screen with the form of a point, simultaneous processor starts trajectory parameter error immediately and revises in real time and backoff algorithm program, gather associated sensor data, by revising after data processing and compensate when the actual point of impact pixel coordinate position on a display screen under Forward Firing environment;

(4) processor immediate updating graduation position, color, brightness, camera focal length, by view synthesis technology, with actual point of impact for screen center's point presents on a display screen, processor drives camera focal length meeting automatic focusing, to mate the parameter of this actual point of impact, readjust camera, make the region that graduation run-home will be hit;

(5) open fire, now bullet can hit the mark accurately, and simultaneous processor driving camera takes the photo after shooting stored in memory;

By said method, accomplish that described digital sight is followed the tracks of fast to target, automatically locked and the result of precision fire.

9. the digital sight of use according to claim 8 is to the method for target following, locking and precision fire, it is characterized in that: the algorithm of described trajectory parameter Real time error correction and compensation is the numerical filters of real-time " multivariable input and single argument export ", and its general principle is as follows: processor Real-time Collection three-axis gyroscope and Gravity accelerometer determination firearms are at three-dimensional rotation attitude and look up angle; Processor Real-time Collection intelligence compass detector determination firearms are at three-dimensional moving direction; Processor Real-time Collection acceleration transducer determination firearms, at three-dimensional translational acceleration, by the contrast with initial velocity, judge possible motion track; The relative distance of processor Real-time Collection laser range sensor measuring and calculating target and firearms; By above-mentioned data, processor determines relative moving speed between firearms and target, move angle between the two by " three limit positioning modes ", thus determines that target is at three-dimensional moving displacement coordinate; Numerical value and the wind of the processor Real-time Collection wind speed and direction sensor of described digital sight waft, and waft to the theoretical formula of bullet at space flight Distance geometry flight angle, calculate the offset error that bullet produces at different spaces coordinate according to wind; Described digital sight processor is the plan range in space according to target and firearms, recall the point of impact pixel coordinate on a display screen that the actual test of ballistic trajectory database obtains at plan range place, in conjunction with wind waft produce offset error, revise this offset error, just obtain the accurate point of impact of this target range virgin bullet pixel coordinate on a display screen.

10. the digital sight of use according to claim 8 is to the method for the tracking of target, locking and precision fire, it is characterized in that: the acquisition of described ballistic trajectory database realizes by two kinds of modes: one is obtained by ball firing test, another is downloaded from Cloud Server and obtains, and the method that ball firing test obtains ballistic trajectory database comprises the following steps:

(1) bullet trajectory track data library name, firearms title and the ammunition title that will obtain is inputted;

(2) target is placed into surveys measured fixed range in advance, i.e. first test point;

(3) Target Center point is aimed in the graduation on display screen, regulate camera focal length that the graduation of screen center and Target Center point are overlapped, this central point is co-ordinate zero point, after the position of point of impact of all test records be all stored in the database of internal memory using the pixel difference of this co-ordinate zero point on image as coordinate value;

(4) firearms are fixed on a position, no longer move, until obtain complete ballistic trajectory database in the process of test;

(5) the camera focal length that processor for recording is current is stored in internal memory;

(6) processor gathers three-axis gyroscope sensor, Gravity accelerometer and electronic compass sensor data, calculates shooter elevation stored in internal memory;

(7) processor gathers wind speed and direction sensor, calculates current wind and wafts data stored in internal memory;

(8) shoot, processor locks the target image after shooting immediately, presents on a display screen with a photo form; Photo find bullet pass shell hole and the point of impact of target, then this point of impact is clicked on the touchscreen, the pixel that processor calculates point of impact and co-ordinate zero point is poor, saved as the coordinate value of current point of impact, this coordinate value is stored in internal memory, input impact range, editor's preservation completes backed off after random simultaneously;

(9) mobile target distance, to new test point, consideration target placement moves and camera imaging central point is motionless, now Target Center point not necessarily can on the imaging center point of camera and co-ordinate zero point, therefore after requiring that target moves each time, the coordinate position stayed on target after the coordinate position of point of impact imaging is on a display screen left last shooting, target focusing display on a display screen can be greatly reduced like this, find Target Center point on a display screen, Target Center point on point touching screen, the image center of display screen display can jump to Target Center point, manual adjustment camera focal length, both are overlapped again, gem-purely on a display screen see Target Center point, processor for recording image on display screen central point jumps to the distance of Target Center point, the range difference of two test point Target Center points is it can be used as to record, record the focal length of current camera simultaneously:

(10) multiple above-mentioned steps (4) is to (8), and the parameters of record second point of impact, is saved in database;

(11) repeat above-mentioned steps (9) to (10), completely obtain affiliated firearms bullet trajectory track data, be all saved in ballistic trajectory database, database using described digital sight to the distance of target as index;

Download ballistic trajectory data base method from Cloud Server to comprise the following steps:

(1) described digital sight possesses wireless network environment;

(2) log in Cloud Server, server can list all ballistic trajectory Database Lists inside database, divides according to firearms kind and ammunition type;

(3) according to firearms and the suitable ballistic trajectory database of ammunition type selecting, download is saved in memory, multiple ballistic trajectory database can be downloaded as required in local storage, name with different databases, each bullet trajectory track data storehouse represents different bullet types, different firearms;

(4) in local ballistic trajectory database, the ballistic data storehouse of coupling firearms is selected to use as reality shooting as default database.