CN111580096B - Defense area drawing method and device - Google Patents
Defense area drawing method and device Download PDFInfo
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- CN111580096B CN111580096B CN201910119466.6A CN201910119466A CN111580096B CN 111580096 B CN111580096 B CN 111580096B CN 201910119466 A CN201910119466 A CN 201910119466A CN 111580096 B CN111580096 B CN 111580096B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/88—Radar or analogous systems specially adapted for specific applications
- G01S13/89—Radar or analogous systems specially adapted for specific applications for mapping or imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
- G01S7/41—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00 using analysis of echo signal for target characterisation; Target signature; Target cross-section
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Abstract
The application provides a method for drawing a defense area, which comprises the following steps: acquiring a moving track of a target object detected by a detector; and determining the defense area of the detector according to the acquired movement track of the target object. The application also provides a defense zone drawing device, a computing device and a computer readable storage medium. According to the scheme, the accurate drawing of the defense area can be realized under the condition without a map, and the existing detector can be utilized for drawing the defense area without preparing other terminal equipment for setting the defense area.
Description
Technical Field
The application relates to the field of monitoring, in particular to a method and a device for drawing a defense area.
Background
In a monitoring system, a defence area generally refers to a defence area or defence area. The defense area is a connection port of the front-end detector and the alarm control host, and is the minimum space unit capable of distinguishing alarm events. Current monitoring systems can generally set zones of defense in two ways: one is to directly use the range which can be monitored by the detector as a defense area; another is by drawing a closed area on the software as a defense area. However, the range that can be monitored by the detector is directly used as a defense area, so that on one hand, the range of the defense area cannot be accurately fed back on software; on the other hand, the requirement of setting some area in the coverage area of the detector as a defense area cannot be realized. However, by drawing a closed region on software as a defense region, an accurate map and a ratio of the map to an actual scene are required, otherwise, the drawn defense region is inaccurate, and thus, a series of problems such as inaccurate alarm are caused.
Disclosure of Invention
In order to solve the above problem, an embodiment of the present application provides a method for drawing a defense area, where the method includes: acquiring a moving track of a target object detected by the detector; and determining the defense area of the detector according to the acquired movement track of the target object.
In an embodiment of the application, the detector is a radar.
In an embodiment of the present application, the acquiring a movement trajectory of the target object detected by the detector includes: acquiring position information of the object monitored by the detector; converting the position information into a corresponding position of the target object on a coordinate system determined by a current defense area drawing interface; and determining the moving track of the target object on the coordinate system according to the converted position information.
In an embodiment of the present application, the position information is an actual position of the object relative to the detector; the converting the position information into a corresponding position of the target object on a coordinate system determined by the current defense area drawing interface comprises: and converting the numerical value of the coordinate according to a preset scale, and mapping the coordinate value representing the actual position of the target object to the coordinate value of the corresponding position on the coordinate system.
In an embodiment of the application, the method further comprises: after the moving track of the target object on the coordinate system is determined according to the converted position information, screening each position point in the moving track, and filtering out noise points deviating from the actual moving track.
In an embodiment of the application, the method further comprises: after the corresponding position of the target object on the coordinate system is determined, displaying an icon representing the moving target object on the current defense area drawing interface according to the corresponding position; and after the movement track of the target object on the coordinate system is determined, displaying the movement track on a current defense area drawing interface.
In an embodiment of the present application, the determining the defense area of the probe according to the acquired moving track of the target object includes: judging whether the moving track is closed, if the moving track is closed, setting a closed area determined by the moving track as a defense area corresponding to the detector, and ending; if the movement track is not a straight line, connecting the tail point and the starting point of the track to form a closed movement track, setting a closed area determined by the closed movement track as a defense area corresponding to the detector, and ending; and if the track is a straight line, prompting the user that the drawing of the defense area fails, and ending.
The embodiment of the application also discloses a device is drawn in defence area, and this device is drawn in defence area includes:
a moving track acquisition module for acquiring a moving track of a certain target object detected by the detector; and
and the defense area determining module is used for determining the defense area of the detector according to the acquired moving track of the target object.
In an embodiment of the present application, the movement trajectory acquiring module includes:
the position information receiving unit is used for receiving the position information of the target object reported by the detector;
the position information conversion unit is used for converting the received position information and determining the corresponding position of the target object on a coordinate system determined by the current defense area drawing interface; and
and the track determining unit is used for determining the moving track of the target object according to the corresponding position of the target object on the coordinate system.
In an embodiment of the present application, the movement trajectory acquiring module further includes: and the filtering unit is used for screening each position point in the moving track and filtering out a noise point deviating from the actual moving track.
In an embodiment of the present application, the movement trajectory acquiring module further includes:
the position display unit is used for displaying an icon representing the moving target object at the corresponding position on the coordinate system after determining the corresponding position of the target object on the current defense area drawing interface; and
and the track display unit is used for displaying the moving track on the current defense area drawing interface after the moving track of the target object on the coordinate system is determined.
Therefore, the defense area of the detector can be set according to the movement track of the user or other moving objects through the scheme. In addition, in the method for drawing the defense area, on one hand, the device used for drawing the defense area of a certain detector is the detector, for example, radar can be used as the detector to determine the defense area of the detector, and a user does not need to carry other terminal devices to draw the defense area, so that the cost of the system is greatly saved. On the other hand, the drawing process of the defense area does not depend on a map, namely the ideal defense area of the user can be accurately drawn under the condition of no map, and the operation of the user is greatly facilitated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of an internal structure of a monitoring system 100 according to an embodiment of the present application;
FIG. 2 is a flow chart of a method for drawing a defense area according to an embodiment of the present application;
FIG. 3A is a schematic diagram of a prober device management interface according to an embodiment of the present disclosure;
fig. 3B is a schematic diagram of a defense area drawing interface on a management interface of a detector device according to an embodiment of the present disclosure;
fig. 4 is a schematic flowchart of a method for acquiring a moving track of a target object detected by the detector 101 in the embodiment of the present application;
fig. 5A is a schematic diagram of a current position of a target object displayed on a defense area drawing interface according to an embodiment of the present application;
fig. 5B is a schematic diagram of a movement trajectory of the target object displayed on the defense area drawing interface according to the embodiment of the present application;
fig. 6 is a flowchart illustrating a method for determining a defense area of a detector according to an acquired moving track of a target according to an embodiment of the present application;
fig. 7 is a schematic diagram illustrating an internal structure of a defense area drawing apparatus 700 according to an embodiment of the present application; and
fig. 8 is a schematic diagram of an internal structure of the computing device 103 according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For simplicity and clarity of description, the invention will be described below by describing several representative embodiments. The numerous details of the examples are set forth only to provide an understanding of the principles of the invention. It will be apparent, however, that the invention may be practiced without these specific details. Some embodiments are not described in detail, but rather only a framework is presented, in order to avoid unnecessarily obscuring aspects of the invention. Hereinafter, "comprising" means "including but not limited to", "according to … …" means "according to at least … …, but not limited to only … …". When the number of one component is not particularly specified hereinafter, it means that the component may be one or more, or may be understood as at least one.
In order to solve the problem that a defense area cannot be set in a detector coverage area or cannot be set under the condition that an accurate map and the proportion of the map to an actual scene do not exist or the set defense area is inaccurate in the existing monitoring system, the embodiment of the application discloses a defense area drawing method which can realize the setting of the defense area in the detector coverage area and does not need corresponding map information. The method may be applied to the monitoring system 100 shown in fig. 1.
As shown in fig. 1, the monitoring system 100 includes: at least one detector 101, at least one host 102, and a computing device 103 for managing and controlling the at least one host 102.
In the embodiment of the present application, the at least one host 102 is an alarm control host. There is correspondence between the at least one detector 101 and the at least one host 102, for example, one host 102 may correspond to one or more detectors 101. The host 102 is used to implement configuration and control of its corresponding detector 101. The host 102 and the corresponding detector 101 may be connected in a wired (e.g., ethernet) or wireless (e.g., WIFI) manner. In the embodiment of the present application, the detectors 101 and the hosts 102 may also be in a one-to-one correspondence, and in this case, the detectors 101 and the hosts 102 corresponding to the detectors may be integrated together as an independent physical device.
In an embodiment of the present application, the computing device 103 may be a Personal Computer (PC) for managing and controlling the at least one host 102, and the computing device 103 and the at least one host 102 may be connected in a wired (e.g., ethernet) or wireless (e.g., WIFI) manner.
In the embodiment of the present application, a defense area management client 104 is further run on the computing device 103, and the defense area management client 104 is configured to set and manage a defense area corresponding to each detector 101 through the host 102. In addition, other software may be run on the computing device 103 to facilitate configuration, management, and control of the monitoring system 100 by an administrator.
The monitoring system 100 may further include: an alarm peripheral 105 connected to the at least one host 102 by wire or wirelessly for alarming upon receiving an alarm signal from the host 102.
In an embodiment of the present application, the detector 101 may specifically be a radar device. As will be understood by those skilled in the art, radar irradiates a target by transmitting an electromagnetic wave and receives an echo thereof, thereby obtaining information on a distance, a speed, and an azimuth of the target from an electromagnetic wave transmission point. Therefore, in the embodiment of the present application, a moving object can be better detected by using a radar device as the detector 101, thereby achieving accurate mapping of a defense area.
Based on the monitoring system 100, the embodiment of the present application discloses a method for drawing a defense zone, which can be applied to the defense zone management client 104 on the computing device 103. In the method for drawing a defense area disclosed in the embodiment of the present application, the defense area management client 104 may set the defense area by using a moving track of a certain moving target object in the monitoring range of the detector 101, so that the defense area can be set in the coverage range of the detector without corresponding map information.
Fig. 2 shows a flowchart of a defense area drawing method according to an embodiment of the present application. As shown in fig. 2, the method mainly includes the following steps:
in step 201, the moving track of the target object detected by the detector 101 is obtained.
In the embodiment of the present application, if a plurality of detectors 101 are included in the monitoring system 100 described above, the detector 101 to which a defense area is to be set may be determined in advance.
Specifically, in embodiments of the present application, a user may manage individual detectors 101 in monitoring system 100 via a defence area management client 104 running on a computing device 103. For example, all the probes 101 in the monitoring system 100 may be displayed on a probe device management interface of the defense area management client 104, and a user may perform various configurations and management on the respective probes 101 through the management interface. Thus, in this step, the user may click on a certain detector 101 on the management interface and select the detector 101 as the detector 101 of the defense area of the current process. In addition, an individual defense area drawing interface can be set on the probe management interface, and a user can select a probe 101 with a defense area set in the current flow by dragging an icon corresponding to a certain probe 101 to the defense area drawing interface. In any selection mode, after receiving the detector 101 selected by the user, the defense area management client 104 may determine the detector 101 to be set in the current flow. Thereafter, a defense area drawing interface corresponding to the probe 101 may be displayed on the probe management interface. Fig. 3A is a schematic diagram of a management interface of a prober apparatus in an embodiment of the present application. In the example shown in fig. 3A, the current monitoring system has a total of 4 detectors, detector 1, detector 2, detector 3, and detector 4. Fig. 3B is a schematic diagram of a defense area drawing interface on a management interface of a detector device in an embodiment of the present application. In the example shown in fig. 3B, the user selects to set the defence area of the probe 3.
In the embodiment of the present application, if only 1 detector 101 is included in the monitoring system 100, the detector 101 may be set directly in the defense area. For example, a user may enter the defence setting mode for the probe 101 directly through a function key on a defence area management client 104 running on the computing device 103.
In addition, in the embodiment of the present application, in order to perform defense area setting more accurately, after the detector 101 of the defense area to be set is determined, the monitoring mode of the detector 101 may be further adjusted, so that the detector 101 only monitors a single moving object in the monitoring mode, and shields other moving objects, thereby eliminating interference of movement of other moving objects in the monitoring range on the defense area setting.
In the embodiment of the present application, the monitoring mode for monitoring only a single moving object may be referred to as a defense area mapping mode. In this defense area drawing mode, the detector 101 monitors only one moving target, and shields other targets at the same time, and the detector 101 detects other moving targets only after the moving target disappears on the defense area drawing interface or the moving target stops moving for more than a preset waiting time. In general, in order to further increase the accuracy of the defense area mapping, in some embodiments of the present application, the sensitivity of the detector 101, the waiting time, and other parameters may be further set. The sensitivity of the detector 101 to the target movement detection can be improved by setting the sensitivity parameters; by setting the latency parameter, the latency of the detector 101 for detection of a single moving object can be set. In some embodiments of the present application, the aforesaid defensive zone drawing mode may be an operation mode configured for the detector 101 in advance, and after the operation mode is selected, the detector 101 can detect only a single moving object. In this way, the user only needs to select and set a certain detector 101 as a drawing mode of the defense area, and does not need to configure each parameter of the detector 101 one by one.
In the case where the above-described detector 101 is set to the defense area drawing mode, in this step 201, the target object to be monitored can be determined by a variety of methods described below.
In some embodiments of the present application, after the detector 101 is set to the defensive zone rendering mode, the detector 101 may regard the first moving object monitored by the detector as the target object, and then further monitor the moving track of the first moving object.
In other embodiments of the present application, the user may also select one moving object from the plurality of moving objects monitored by the detector 101 in the monitoring range as the target object through the defense area management client 104 running on the computing device 103, and then set the detector 101 in the defense area drawing mode to monitor the moving track thereof.
In the case where the detector 101 is not set to the defense area drawing mode, in this step 201, the moving object monitored by the detector 101 may be determined as the monitored target object.
In an embodiment of the present application, a specific process of acquiring the moving track of the target object detected by the detector 101 in step 201 may be as shown in fig. 4, and includes the following steps:
step 401: position information of the target object detected by the above-mentioned detector 101 is acquired.
In the embodiment of the present application, after determining the object, the detector 101 may detect the position information of the object, and send the detected position information to the host 102 corresponding to the detector, where the host 102 further reports to the defense area management client 104 on the computing device 103. The above operations may be continuously executed in a loop until the target object moves out of the monitoring range of the detector 101 or a preset waiting time is exceeded.
In an embodiment of the present application, the position information may be an actual position of the object relative to the detector 101.
Specifically, when the probe 101 is a radar, the person or object as the target moves within the radar monitoring area, the radar irradiates the target by transmitting an electromagnetic wave and determines the position information of the target by receiving an echo thereof, and then sequentially reports the determined position information to the defense area management client 104 on the computing device 103. Typically, a radar may transmit 7-8 location messages to its corresponding host 102 every 1 second. And since the monitoring area of the radar is generally a sector area, the position information is generally expressed as one polar coordinate in a polar coordinate system with the probe 101 as an origin.
Step 402: and converting the position information into the corresponding position of the target object on the coordinate system determined by the current defense area drawing interface.
As mentioned above, the position information may be an actual position of the object relative to the detector 101, and therefore, after obtaining the position information of the object, the ward management client 104 on the computing device 103 needs to convert the position information into a corresponding position of the object on the coordinate system determined by the current ward drawing interface. In an embodiment of the application, the conversion includes coordinate system conversion and numerical value proportion conversion, so as to determine a corresponding position of the target object on the current defense area drawing interface. The coordinate system conversion may be to convert the received coordinates in the polar coordinate form into coordinates in a rectangular coordinate form corresponding to the current defense area drawing interface. The numerical value proportional conversion means that the numerical value of the coordinate is converted according to a preset proportional scale, and the actual position is mapped to the corresponding position on the defense area drawing interface.
Step 403: and determining the moving track of the target object on the coordinate system according to the converted position information.
In an embodiment of the present application, the defense area managing client 104 on the computing device 103 connects the plurality of converted position information to obtain a moving track of the target object on the coordinate system.
It should be noted that after determining the movement track of the target object, the defense area management client 104 on the computing device 103 may further filter each position point in the movement track to filter out a noise point deviating from the actual movement track. Specifically, the defence area management client 104 may remove noise points significantly deviating from the actual movement trajectory among adjacent points in the movement trajectory according to the position information of the points. In addition, the defense area management client 104 may also fill corresponding points between points with longer distances in the movement trajectory by an operation method such as interpolation.
In the embodiment of the present application, in the process of determining the moving track of the object, the defence area management client 104 on the computing device 103 may further display an icon or an identifier on the corresponding position on the coordinate system determined by the current defence area drawing interface after determining the corresponding position of the object on the coordinate system, where the icon or the identifier represents the moving object. Therefore, in the moving process of the target object, the icon on the current defense area drawing interface moves on the defense area drawing interface along with the movement of the target object. Fig. 5A is a schematic diagram illustrating a current position of a target object displayed on a defense area drawing interface in an embodiment of the application. In the example shown in fig. 5A, the position shown by the flag 501 is the corresponding position of the object on the defense area drawing interface.
In addition, in the embodiment of the present application, the defense area management client 104 on the computing device 103 may further display a movement track at a corresponding position on the coordinate system determined by the current defense area drawing interface after determining the movement track of the target object. Fig. 5B is a schematic diagram of a moving track of a target object displayed on a defense area drawing interface in an embodiment of the present application. In the example shown in fig. 5B, the position shown by the flag 501 is the current position of the target object on the defense area drawing interface; the track 502 is the moving track of the target object on the defense area drawing interface.
In an embodiment of the present application, if there is more than one target object monitored by the detector 101, the moving track obtained in step 201 may also include a plurality of target objects. At this time, before performing step 202, the user may select one of the acquired plurality of movement trajectories as the movement trajectory of the target object through the defence area management client 104 running on the computing device 103 to determine the defence area of the probe.
The embodiment of the application can determine the defense area of the detector according to the acquired moving track of the target object by the method shown in fig. 6. The method comprises the following steps:
step 602, setting the closed area determined by the movement track as a defense area corresponding to the detector, and ending;
It can be seen that, by the above method, after the setting operations of steps 201 and 202 are performed, the user can enter the monitoring range of the detector as the target object and move within the monitoring range, and then, the defense area management client 104 running on the computing device 103 can set the defense area of the detector 101 according to the movement track of the user. In addition, in the method for drawing the defense area, on one hand, the device used for drawing the defense area of a certain detector is the detector, for example, radar can be used as the detector to determine the defense area of the detector, and a user does not need to carry other terminal devices to draw the defense area, so that the cost of the system is greatly saved. On the other hand, the drawing process of the defense area does not depend on a map, namely the ideal defense area of the user can be accurately drawn under the condition of no map, and the operation of the user is greatly facilitated.
Corresponding to the above-mentioned defense area drawing method, the embodiment of the present application further discloses a defense area drawing device, which is applied to the computing device 103. Fig. 7 shows an internal structure diagram of a defense area drawing apparatus 700 disclosed in an embodiment of the present application. As shown in fig. 7, the defense area drawing apparatus includes:
a moving track acquiring module 701, configured to acquire a moving track of a certain target object detected by the detector 101; and
a defense area determining module 702, configured to determine a defense area of the detector according to the obtained movement trajectory of the target object.
As described above, if the monitoring system 100 includes a plurality of detectors 101, the defense area mapping apparatus may further include a detector setting module for determining the detector 101 to be set with the defense area.
In the embodiment of the application, a user can select a detector 101 for setting a defense area in a current process by clicking a certain detector 101 on a management interface; or the user may select the probe 101 for setting the defense area in the current process by dragging an icon corresponding to a certain probe 101 to the defense area drawing interface. At this time, after the detector setting module receives the detector 101 selected by the user, the detector 101 to be set with the defense area in the current flow can be determined according to the selection of the user. Thereafter, a defense area drawing interface corresponding to the probe 101 is displayed on the probe management interface.
In addition, in order to further enhance the drawing accuracy of the defence area drawing device, the defence area drawing device may further include: and a defense area drawing mode setting module, configured to adjust the monitoring mode of the detector 101 to a defense area drawing mode. At this time, in an embodiment of the present application, the above-mentioned defense area drawing mode setting module may set the operation mode of the probe 101 to the defense area drawing mode by setting various parameter thresholds (e.g., sensitivity thresholds) of the probe 101.
In an embodiment of the present application, the moving track obtaining module 701 includes:
a position information receiving unit 7011, configured to receive position information of the target object reported by the detector;
a position information conversion unit 7012, configured to convert the received position information and determine a corresponding position of the target object on a coordinate system determined by the current defense area drawing interface; and
a track determining unit 7013, configured to determine a moving track of the target object according to a corresponding position of the target object on the coordinate system.
In an embodiment of the present application, the moving track obtaining module 701 may further include: the filtering unit 7014 is configured to filter each position point in the movement track, and filter out a noise point deviating from the movement track.
In an embodiment of the present application, the moving track obtaining module 701 may further include: and a position display unit 7015, configured to, after determining a corresponding position of the target object on the coordinate system, display an icon representing the moving target object on the current defense area drawing interface according to the corresponding position.
In an embodiment of the present application, the moving track obtaining module 701 may further include: and a track display unit 7016, configured to display the moving track of the target object on the current defense area drawing interface after determining the moving track of the target object on the coordinate system.
In an embodiment of the present application, the defense area determination module 702 may determine the defense area of the probe according to the acquired moving track of the target object by the method shown in fig. 6.
The defense area drawing device can set the defense area of the detector according to the movement track of the user. Through the mode, on one hand, the device used for drawing the defense area of a certain detector is the detector, and a user does not need to carry other terminal devices to draw the defense area, so that the cost of the system is greatly saved. On the other hand, the accuracy of the drawn defense area does not depend on the map, namely the ideal defense area of the user can be drawn accurately under the condition of no map, and the operation of the user is greatly facilitated.
Corresponding to the defense area drawing method and the defense area drawing device, the embodiment of the application further discloses a computing device 103. Fig. 8 shows an internal structural diagram of the computing device 103 disclosed in the embodiment of the present application. As shown in fig. 8, the computing device 103 internally includes: one or more processors (CPUs) 802, a memory 804, and a communication bus 806 for interconnecting these components. The memory 804 is used for storing one or more instructions, and the instructions, when executed by the processor 802, may implement the defense area rendering method shown in fig. 2 to 6.
It should be noted that not all steps and modules in the above flows and structures are necessary, and some steps or modules may be omitted according to actual needs. The execution order of the steps is not fixed and can be adjusted as required. The division of each module is only for convenience of describing adopted functional division, and in actual implementation, one module may be divided into multiple modules, and the functions of multiple modules may also be implemented by the same module, and these modules may be located in the same device or in different devices.
The hardware modules in the embodiments may be implemented in hardware or a hardware platform plus software. The software includes machine-readable instructions stored on a non-volatile storage medium. Thus, embodiments may also be embodied as software products.
Accordingly, some examples of the present application also provide a computer-readable storage medium having computer instructions stored thereon, wherein the computer instructions, when executed by a processor, implement the steps of the method described above with reference to fig. 2-6.
In various examples, the hardware may be implemented by specialized hardware or hardware executing machine-readable instructions. For example, the hardware may be specially designed permanent circuits or logic devices (e.g., special purpose processors, such as FPGAs or ASICs) for performing the specified operations. Hardware may also include programmable logic devices or circuits temporarily configured by software (e.g., including a general-purpose processor or other programmable processor) to perform certain operations.
In addition, each example of the present application can be realized by a data processing program executed by a data processing apparatus such as a computer. It is clear that a data processing program constitutes the present application. Further, the data processing program, which is generally stored in one storage medium, is executed by directly reading the program out of the storage medium or by installing or copying the program into a storage device (such as a hard disk and/or a memory) of the data processing device. Such a storage medium therefore also constitutes the present application, which also provides a non-volatile storage medium in which a data processing program is stored, which data processing program can be used to carry out any one of the above-mentioned method examples of the present application.
The nonvolatile computer-readable storage medium may be a memory provided in an expansion board inserted into the computer or written to a memory provided in an expansion unit connected to the computer. A CPU or the like mounted on the expansion board or the expansion unit may perform part or all of the actual operations according to the instructions.
In addition, the devices and modules in the examples of the present application may be integrated into one processing unit, or each module may exist alone physically, or two or more devices or modules may be integrated into one unit. The integrated unit may be implemented in the form of hardware, or may also be implemented in the form of a software functional unit.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, 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 (11)
1. A method for drawing a defense area is characterized by comprising the following steps:
acquiring a moving track of a target object detected by a detector; and
determining a defense area of the detector according to the acquired movement track of the target object;
the determining the defense area of the detector according to the acquired movement track of the target object comprises the following steps:
judging whether the moving track is closed or not,
if the moving track is not closed, judging whether the track is a straight line or not,
if the track is a straight line, prompting the user that the drawing of the defense area fails;
if the track is not a straight line, connecting the tail point and the starting point of the moving track to form a closed moving track, and setting a closed area determined by the closed moving track as a defense area corresponding to the detector.
2. The method of claim 1, wherein the detector is a radar.
3. The method of claim 1, wherein the acquiring the movement trajectory of the target object detected by the detector comprises:
acquiring position information of the object monitored by the detector;
converting the position information into a corresponding position of the target object on a rectangular coordinate system determined by a current defense area drawing interface; and
and determining the moving track of the target object on the coordinate system according to the converted plurality of pieces of position information.
4. The method of claim 3, wherein the position information is an actual position of the object relative to the detector;
the converting the position information into a corresponding position of the target object on a rectangular coordinate system determined by a current defense area drawing interface includes: and converting the numerical value of the coordinate according to a preset scale, and mapping the coordinate value representing the actual position of the target object into the coordinate value of the corresponding position on the coordinate system.
5. The method of claim 3, further comprising: after the moving track of the target object on the current defense area drawing interface is determined according to the converted position information, screening each position point in the moving track, and filtering out noise points deviating from the actual moving track.
6. The method of claim 3, further comprising: after determining the corresponding position of the target object on the rectangular coordinate system determined by the current defense area drawing interface, displaying an icon representing the moving target object on the current defense area drawing interface according to the corresponding position; and after the movement track of the target object on the coordinate system is determined, displaying the movement track on a current defense area drawing interface.
7. The method according to claim 1, wherein after determining whether the movement track is closed, the method further comprises:
and if the moving track is closed, setting a closed area determined by the moving track as a defense area corresponding to the detector.
8. A defence area drawing apparatus characterized by comprising:
a movement track acquisition module for acquiring a movement track of the target object detected by the detector; and
the defense area determining module is used for determining the defense area of the detector according to the acquired moving track of the target object;
the defense area determining module determines the defense area of the detector according to the acquired movement track of the target object, and comprises the following steps:
judging whether the moving track is closed or not,
if the moving track is not closed, judging whether the track is a straight line or not,
if the track is a straight line, prompting the user that the drawing of the defense area fails;
if the track is not a straight line, connecting the tail point and the starting point of the moving track to form a closed moving track, and setting a closed area determined by the closed moving track as a defense area corresponding to the detector.
9. The defence area drawing device according to claim 8 wherein the movement trajectory acquisition module includes:
the position information receiving unit is used for receiving the position information of the target object reported by the detector;
the position information conversion unit is used for converting the received position information and determining the corresponding position of the target object on the current defense area drawing interface; and
and the track determining unit is used for determining the moving track of the target object on the current defense area drawing interface according to the corresponding position of the target object on the coordinate system determined by the current defense area drawing interface.
10. The defense zone drawing device according to claim 9, wherein the movement locus acquisition module further comprises: and the filtering unit is used for screening each position point in the moving track and filtering out a noise point deviating from the actual moving track.
11. The defence area drawing device according to claim 9 wherein the movement trajectory acquisition module further includes:
the position display unit is used for displaying an icon representing the moving target object at the corresponding position on the coordinate system after the corresponding position of the target object on the coordinate system determined by the current defense area drawing interface is determined; and
and the track display unit is used for displaying the moving track of the target object on the current defense area drawing interface after determining the moving track of the target object on the current defense area drawing interface.
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