CN113406719A - Cooperative active light-emitting type identification method and system - Google Patents
Cooperative active light-emitting type identification method and system Download PDFInfo
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- CN113406719A CN113406719A CN202110700629.7A CN202110700629A CN113406719A CN 113406719 A CN113406719 A CN 113406719A CN 202110700629 A CN202110700629 A CN 202110700629A CN 113406719 A CN113406719 A CN 113406719A
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- G01—MEASURING; TESTING
- G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
- G01V8/00—Prospecting or detecting by optical means
- G01V8/10—Detecting, e.g. by using light barriers
Abstract
The invention discloses a collaborative active light-emitting type identification method and a system, which comprises the following steps: the observer emits an infrared detection signal through the target observation equipment; the target body receives effective infrared detection signals through target identification equipment, judges the source direction of the infrared detection signals and transmits optical identification signals with set rules to the direction; the observer observes whether the object radiates the optical identification signal through the object observation equipment, and judges whether the object is the own cooperative personnel by judging whether the observed optical identification signal is the optical identification signal with a set rule, so as to finish the identification process; the infrared detection signal is a pulse sequence signal coded by adopting a pulse position. By using the technical scheme of the invention, the mobile target can be simply and quickly identified under the condition of certain concealment, the problems of short continuous working time and easy active exposure of the existing identification method are solved, and the equipment can obtain good market benefit.
Description
Technical Field
The invention relates to the technical field of target identification, in particular to a cooperative active light-emitting identification method and system.
Background
The object recognition technology is a technology for obtaining object information by a specific method to identify an object. The target identification technology can be divided into two types of cooperative type and non-cooperative type according to the working principle: the cooperative target identification is mainly used for detecting and identifying a long-distance target through a secondary radar; non-cooperative target identification is mainly achieved through primary radar (including thermal radar and laser radar) and by means of echo/radiation signals, detection and analysis of target features are achieved. In addition, the active/passive identification mark also belongs to the non-cooperative target identification category, and is characterized in that the identification spectral characteristics are directly observed by observation and aiming equipment such as a thermal infrared imager, a low-light level night vision device, a visible light television, a pair of goggles and the like or human eyes to identify the attribute of the target enemy without the radar detection process, and the active/passive identification mark has the advantages of intuition, reliability, electromagnetic interference resistance, small volume, light weight, low cost and the like. The active/passive identification mark can be widely applied to the field of target identification under medium and short distance conditions, such as advertising boards in the civil field, license plates, reflective tapes on clothes of traffic guidance personnel, infrared luminous marks in the military field and the like.
The traditional active luminous identification mark works in a non-cooperative mode, and after the equipment is started, the equipment needs to continuously or periodically send out optical signals so as to be observed by an observer in time. There are two major problems in the application in certain scenarios (especially in the military sector): firstly, continuous/periodic work needs continuous power consumption, and for a mobile target powered by a battery, the continuous working time is short due to the limitation of electric quantity; and secondly, the system works continuously/periodically, omnidirectionally radiates optical signals without concealment, and can be observed by observers (friends or enemies) with the same observation capability.
Disclosure of Invention
Based on the background technology, the invention provides a collaborative active light-emitting type identification method and a collaborative active light-emitting type identification system for solving the problems, which are applied to the field of target identification, can realize simple and rapid identification of targets under the condition of certain concealment, and solve the problems of short continuous working time and easy active exposure of the existing identification method.
The invention is realized by the following technical scheme:
a cooperative active light-emitting type identification method comprises the following steps:
s1, an observer emits an infrared detection signal through target observation equipment;
s2, the target body receives effective infrared detection signals through the target identification equipment and judges the source direction of the infrared detection signals, so that optical identification signals with set rules are emitted to the direction;
s3, an observer observes whether a target body radiates an optical identification signal through target observation equipment, judges whether the target body is a cooperative person of the own party by judging whether the observed optical identification signal is an optical identification signal with a set rule, and finishes an identification process; the infrared detection signal is a pulse sequence signal coded by adopting a pulse position.
Further preferably, the optical identification signal comprises an infrared optical identification signal or a white light optical identification signal.
Further preferably, the optical identification signal is a flashing light according to a set rule.
Further preferably, the target observation device is designed to adopt an active triggering type working mode.
Further preferably, the target identification device is designed to be in a passive triggering mode of operation.
A kind of cooperative active light-emitting type identification system, including target observation equipment and target identification equipment;
the target observation equipment is used for emitting infrared detection signals and observing optical identification signals;
the target identification device is used for receiving the infrared detection signal and transmitting an optical identification signal with a set rule; the target identification device is used for being loaded on the target body or having a specific position relation with the target body; the infrared detection signal is a pulse sequence signal coded by adopting a pulse position.
Further preferably, the target observation device comprises an infrared telescope, a laser light source and a coding drive board; the infrared telescope is used for observing the optical identification signal; the laser light source is used for emitting an infrared detection signal; the coding drive board is used for completing coding and driving of the infrared detection signals.
Further preferably, the target identification device comprises an ontology and a plurality of recognition components; the plurality of identification assemblies are distributed along the circumferential direction of the body, and each identification assembly comprises an infrared detection window and a light source; in each identification component, the direction of the infrared detection window for receiving signals is the same as the direction of the light source for transmitting signals; in each identification component, the infrared detection window is used for receiving an infrared detection signal emitted from a corresponding direction; the light source is used for emitting optical identification signals with a set rule in the same direction, and the optical identification signals comprise infrared optical identification signals or white light optical identification signals.
Further preferably, for each identification assembly, along the axial projection direction of the body, the signal receiving end of the infrared detection window is projected to coincide with the signal emitting end of the light source.
Further preferably, the target observation device is in an active triggering type working mode, and the target identification device is in a passive triggering type working mode.
The invention has the following advantages and beneficial effects:
the invention provides a method and a system for a cooperative active luminous type identification mark, which are applied to the field of moving target identification needing certain concealment, and introduces the active luminous type identification mark into the field of cooperative target identification based on a photoelectric identification technology. The specific advantages and beneficial effects are as follows:
1. the invention combines a non-cooperative identification method with a radar detection method, provides a cooperative active light-emitting identification method and a cooperative active light-emitting identification system, and realizes simple and rapid identification of a moving target under the condition of certain concealment;
2. the invention realizes the detection of the orientation 360 degrees in different areas and the emission of identification signals in different areas in the model design of the target identification equipment, and the appearance structure of the equipment is original;
3. the target detection equipment designed by the invention is in an active trigger working mode, and the target identification equipment is in a passive trigger working mode, and both can realize ultralow average power consumption through working state control.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:
fig. 1 is a flow chart of the working process of the cooperative active light-emitting identification method of the present invention.
Fig. 2 is a schematic structural diagram of the target identification device of the present invention.
Reference numbers and corresponding part names in the drawings: 1-body, 2-infrared detection window and 3-light source.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to examples and accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention and are not meant to limit the present invention.
Example 1
The embodiment provides a method for a collaborative active light-emitting type identification, as shown in fig. 1, the specific steps are as follows:
s1, an observer observes a remote target by means of target observation equipment and starts the target observation equipment to emit an infrared detection signal through security inspection; the infrared detection signal is a pulse sequence signal encoded by adopting a pulse position.
S2, target identification equipment is loaded on the target body, the target body receives effective infrared detection signals through the target identification equipment, and the source direction of the infrared detection signals is judged, so that optical identification signals with set rules are emitted to the direction. Here, the "effective infrared detection signal" means an infrared detection signal that conforms to a predetermined coding rule of an observer and a target body; from this point on, "set rule" also means a rule predetermined by the observer and the target body, for example, the optical identification signal is an infrared optical identification signal or a white optical identification signal, specifically, a flashing light with a certain period frequency.
S3, an observer observes whether the target body radiates the optical identification signal through the target observation equipment, and judges whether the target body is a cooperative person of the own party by judging whether the observed optical identification signal is the optical identification signal with a set rule, so that the identification process is completed.
In addition, the target observation device is preferably designed to be in an active triggering type working mode, so that ultra-low average power consumption is realized.
Example 2
The embodiment provides a collaborative active light-emitting type identification system, which is composed of a target observation device and a target identification device, and is specifically designed as follows:
1. the target observation equipment is used for emitting infrared detection signals and observing optical identification signals; the design target observation equipment comprises an infrared telescope, a laser light source and a coding drive board; the infrared telescope is used for observing the optical identification signal; the laser light source is used for emitting an infrared detection signal; the coding driving board is used for completing coding and driving of the infrared detection signal.
In particular, the infrared telescope can be reformed by the existing mature infrared telescope. The infrared telescope has infrared and white light observation capabilities, a laser light source (near-infrared band) and a coding drive board can be added on the basis of hardware, coding and driving of infrared detection signals are completed through the coding drive board, and the laser light source emits infrared pulse signals, so that all functions of target observation equipment are realized.
2. The target identification device is used for receiving the infrared detection signal and transmitting an optical identification signal with a set rule; as shown in fig. 2, the target identification device is adapted to be mounted on or in a specific positional relationship with the target body. The target identification device comprises a body and a plurality of identification components;
the plurality of identification assemblies are uniformly distributed along the circumferential direction of the body, namely all the identification assemblies are arranged in a 360-degree all-around mode along the circumferential direction of the body, so that 360-degree all-around identification is realized; each identification component comprises an infrared detection window and a light source; in each identification assembly, the direction of receiving signals by the infrared detection window and the direction of transmitting signals by the light source are the same, and the optimal design is that for each identification assembly, the projection of the signal receiving end of the infrared detection window and the projection of the signal transmitting end of the light source coincide along the axial projection direction of the body.
In each identification component, the infrared detection window is used for receiving the infrared detection signal emitted from the corresponding direction; the light source is used for emitting optical identification signals with a set rule to the same direction, specifically, the optical identification signals include infrared optical identification signals or white light optical identification signals, and the embodiment adopts infrared bright light flickering according to a set frequency. And the infrared detection signal is a pulse sequence signal encoded by adopting a pulse position.
The infrared detection window can collect infrared detection signals radiated by the direction area, photoelectric conversion, filtering shaping and decoding are completed through the back end circuit, and if the decoding is successful, infrared optical identification signals are transmitted in the same direction area according to a rule specified by a system, so that an observer can observe the signals in time.
The target observation device designed by the embodiment is in an active triggering type working mode, and can enter an ultra-low power consumption dormant state during standby, so that lower average power consumption is realized; the target identification device designed by the embodiment adopts a passive triggering working mode, the receiving part of the target identification device is a PIN photoelectric conversion circuit, the static power consumption is extremely low, and the circuit of the transmitting part can be completely powered off when a detection signal is not received, so that the ultralow average power consumption is realized.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. A cooperative active light-emitting type identification method is characterized by comprising the following steps:
s1, an observer emits an infrared detection signal through target observation equipment;
s2, the target body receives effective infrared detection signals through the target identification equipment and judges the source direction of the infrared detection signals, so that optical identification signals with set rules are emitted to the direction;
s3, an observer observes whether a target body radiates an optical identification signal through target observation equipment, judges whether the target body is a cooperative person of the own party by judging whether the observed optical identification signal is an optical identification signal with a set rule, and finishes an identification process;
the infrared detection signal is a pulse sequence signal coded by adopting a pulse position.
2. A cooperative active light type identification marking method as claimed in claim 1 wherein said optical identification signal comprises an infrared optical identification signal or a white light optical identification signal.
3. The method as claimed in claim 1, wherein the optical identification signal is a flashing light according to a predetermined rule.
4. A cooperative active light type identification method according to claim 1, wherein the target observation device is designed to operate in an active trigger mode.
5. A cooperative active light type identification method as claimed in claim 1, wherein the target identification device is designed to be in a passive triggering operation mode.
6. A kind of cooperative active light-emitting type identification system, characterized by that, including target observation equipment and target identification equipment;
the target observation equipment is used for emitting infrared detection signals and observing optical identification signals;
the target identification device is used for receiving the infrared detection signal and transmitting an optical identification signal with a set rule; the target identification device is used for being loaded on the target body or having a specific position relation with the target body;
the infrared detection signal is a pulse sequence signal coded by adopting a pulse position.
7. A cooperative active emissive type identification system as claimed in claim 6, wherein said target observation device comprises an infrared telescope, a laser light source and a code driving board;
the infrared telescope is used for observing the optical identification signal;
the laser light source is used for emitting an infrared detection signal;
the coding drive board is used for completing coding and driving of the infrared detection signals.
8. A cooperative active emissive type identification system as claimed in claim 6, wherein the target identification device comprises a body, a plurality of identification components;
the plurality of identification assemblies are distributed along the circumferential direction of the body, and each identification assembly comprises an infrared detection window and a light source; in each identification component, the direction of the infrared detection window for receiving signals is the same as the direction of the light source for transmitting signals;
in each identification component, the infrared detection window is used for receiving an infrared detection signal emitted from a corresponding direction; the light source is used for emitting optical identification signals with a set rule in the same direction, and the optical identification signals comprise infrared optical identification signals or white light optical identification signals.
9. The system of claim 8, wherein for each recognition module, the signal receiving end of the infrared detection window is projected to coincide with the signal emitting end of the light source along the axial projection direction of the body.
10. The system according to claim 6, wherein said target observation device is in an active triggered mode, and said target identification device is in a passive triggered mode.
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Application publication date: 20210917 |