Household access control camera control system

Abstract

The invention discloses a household access control camera control system, relates to the technical field of safety protection, and solves the technical problems that in the prior art, abnormal behaviors cannot be efficiently recognized, and personal and property safety cannot be guaranteed. The method comprises the following steps: identifying a target through heat data in area sensing data, and judging whether the target is in an image acquisition area according to a heat data change rule of the target or combined with photosensitive data; corresponding data sensors can be started according to needs, energy consumption is reduced, and recognized target types are diversified; when the target is judged not to be in the image acquisition area according to the area sensing data, whether the abnormal behavior occurs is judged according to the area sensing data, and if the abnormal behavior is recognized, the access control camera is started to record the video; by reasonably setting the judgment basis of the area sensing data, the abnormal behavior can be efficiently recognized and monitored in time, and the personal and property safety can be improved.

Description

Technical Field

[0001] This invention belongs to the field of security and protection, and relates to an intelligent control technology for home access control cameras, specifically a home access control camera control system. Background Technology

[0002] Access control cameras are digital monitoring devices that integrate multiple functions such as audio and video acquisition, intelligent encoding, and network transmission. They adopt embedded operation and high-performance hardware processing platforms, have high stability and reliability, and are widely used in home access control to achieve intelligent security control of home access.

[0003] Existing technology (Chinese invention patent application publication number CN107995471A) discloses an image recognition access control camera. This camera compares images received by an image comparison module with images stored in a storage module, granting access control privileges to those meeting certain criteria. This reduces the need for card-swiping or fingerprint operations. Simultaneously, it identifies and warns of loitering or malicious damage, preventing personal injury and property loss. However, this existing technology requires the camera to operate continuously, often wasting time. Furthermore, it lacks clear boundaries for identifying behaviors that could cause property damage, failing to efficiently identify abnormal behavior and compromising personal and property safety. Therefore, there is an urgent need for an intelligent control system for home access control cameras capable of efficiently identifying abnormal behavior. Summary of the Invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a home access control camera control system to solve the technical problem that the prior art requires the camera to work continuously and cannot efficiently identify abnormal behavior, resulting in the inability to guarantee personal and property safety.

[0005] To achieve the above objectives, a first aspect of the present invention provides a home access control camera control system, including a central control module, and a data acquisition module and an access control module connected thereto; the data acquisition module is connected to a data sensor in the smart access control system; the access control module is used to control the access control system.

[0006] The data acquisition module collects area sensing data through data sensors, and collects image data through access control cameras after receiving image acquisition signals sent by the central control module; the data sensors include access control cameras, infrared pyroelectric sensors, and photosensors;

[0007] The central control module analyzes the area sensing data and determines whether the target is within the image acquisition area. If yes, it sends an image acquisition signal to the data acquisition module; otherwise, it identifies abnormal behavior and sends an access control signal to the access control module based on the image data or the identification result of abnormal behavior.

[0008] Preferably, the central control module is communicatively and / or electrically connected to the data acquisition module and the access control module, respectively; wherein, the access control module is used to control the opening, closing, or alarm of the access control system;

[0009] The data acquisition module communicates and / or is electrically connected to the data sensor; and the central control module acquires standard images through a smart terminal and updates and stores the standard images; wherein, the standard images include user images or visitor images, and the standard images are set with a valid time limit; the smart terminal includes a mobile phone or a computer.

[0010] Preferably, the central control module parses the area sensing data and determines whether the target is within the image acquisition area based on the area sensing data, including:

[0011] Receive area sensing data; the area sensing data includes thermal data and photosensitivity data;

[0012] The target can be identified based on thermal data, and its location within the image acquisition area can be determined based on photosensitivity data; or the target can be determined based on the changing patterns of thermal data.

[0013] Preferably, the step of identifying the target based on heat data and determining whether the target is within the image acquisition area based on photosensitivity data includes:

[0014] The target is identified based on the heat data. When the target height meets the requirements and the heat intensity corresponding to the heat data exceeds the heat threshold, the photosensitive sensor is activated to collect the photosensitive data. The heat threshold is set based on experience.

[0015] The dwell time of the target is extracted based on the photosensitive data. When the dwell time exceeds the set time, the target is determined to be in the image acquisition area. The set time is determined based on experience.

[0016] Preferably, determining whether the target is within the image acquisition area based on the changing patterns of heat data includes:

[0017] Targets are identified based on thermal data. When the target height does not meet the requirements, the corresponding thermal intensity change curve is extracted and constructed. The target height requirement is set according to the acquisition height of the access control camera.

[0018] The location of an image acquisition area can be determined by analyzing the trend of heat intensity changes in the heat intensity change curve.

[0019] Preferably, when the target is within the image acquisition area, the central control module generates an image acquisition signal and sends it to the data acquisition module; the data acquisition module then activates the access control camera to acquire image data based on the image acquisition signal; and

[0020] The central control module matches the image data with a standard image. If the match is successful, it generates an access control opening signal; otherwise, it generates a video recording signal.

[0021] Preferably, the central control module identifies abnormal behavior based on area sensing data, including:

[0022] Extract heat data or photosensitivity data within the target time range from the area sensing data;

[0023] If a target is continuously identified based on thermal data, but the target is not located in the image acquisition area when combined with photosensitivity data, the corresponding area's sensing data will be marked as abnormal data; or if an obstruction is continuously identified based on photosensitivity data, but the target cannot be identified based on thermal data, the corresponding area's sensing data will be marked as abnormal data.

[0024] The number of abnormal data within the target time range is counted and marked as YS; the behavior evaluation coefficient XPX is obtained by formula XPX=α×YS; when the behavior evaluation coefficient XPX is greater than the behavior evaluation threshold, it is determined that there is abnormal behavior and a video recording signal is generated; where α is a proportional coefficient set according to experience.

[0025] A second aspect of the present invention provides a method for controlling a home access control camera, executed based on a home access control camera control system, comprising:

[0026] The standard image is sent to the central control module, where it is preprocessed and then updated and stored. The standard image includes either a user image or a visitor image.

[0027] Collect and analyze area sensing data to determine whether the target is within the image acquisition area; if yes, acquire image data; otherwise, identify abnormal behavior.

[0028] An access control signal is generated when the image data is successfully matched with a standard image; or when abnormal behavior is detected. The access control signal includes an access control opening signal or a video recording signal.

[0029] A second aspect of the present invention provides a home access control camera control device, including a storage medium and a processor; the storage medium is used to store operation instructions, and the processor executes the operation instructions to control the operation of a home access control camera control system.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] 1. This invention first identifies targets by using heat data from regional sensing data. Based on the changing patterns of the target's heat data or by combining it with photosensitive data, it determines whether the target is within the image acquisition area. Then, it matches the acquired image data with a standard image and generates an access control signal based on the matching result. This not only enables the activation of corresponding data sensors as needed, reducing energy consumption, but also allows for the identification of a variety of target types.

[0032] 2. When the present invention determines that the target is not in the image acquisition area based on the area sensing data, it determines whether abnormal behavior has occurred based on the area sensing data. If abnormal behavior is detected, the access control camera is activated to record video. By reasonably setting the judgment criteria of the area sensing data, abnormal behavior can be efficiently identified and monitored in a timely manner, which helps to improve personal and property safety. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the system principle of the present invention;

[0035] Figure 2 This is a schematic diagram illustrating the working steps of the present invention. Detailed Implementation

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] In the current access control camera control process, the camera is in sleep mode when no target is identified, and only starts collecting and identifying data after a target appears. This not only results in high energy consumption, but also requires a large amount of storage space. Furthermore, the current access control camera technology cannot accurately identify abnormal behavior, making it difficult to comprehensively guarantee personal and property safety.

[0038] Please see Figure 1The first aspect of this invention provides a home access control camera control system, including a central control module, a data acquisition module, and an access control module connected thereto. The data acquisition module is connected to a data sensor in the smart access control system. The access control module is used to control the access control system. The data acquisition module acquires area sensing data through the data sensor, and acquires image data through the access control camera after receiving an image acquisition signal sent by the central control module. The central control module parses the area sensing data and determines whether the target is in the image acquisition area based on the area sensing data. If yes, it sends an image acquisition signal to the data acquisition module; if no, it identifies abnormal behavior. It also sends an access control signal to the access control module based on the image data or the identification result of the abnormal behavior.

[0039] This invention first identifies targets by using heat data from regional sensing data. Based on the changing patterns of the target's heat data or by combining it with photosensitive data, it determines whether the target is within the image acquisition area. Then, it matches the acquired image data with a standard image and generates an access control signal based on the matching result. This not only enables the activation of corresponding data sensors as needed, reducing energy consumption, but also allows for the identification of a variety of target types.

[0040] When the present invention determines that the target is not in the image acquisition area based on the area sensing data, it determines whether abnormal behavior has occurred based on the area sensing data. If abnormal behavior is detected, the access control camera is activated to record video. By reasonably setting the judgment criteria of the area sensing data, abnormal behavior can be efficiently identified and monitored in a timely manner, which helps to improve personal and property safety.

[0041] In this invention, the central control module communicates and / or is electrically connected to the data acquisition module and the access control module respectively; the data acquisition module communicates and / or is electrically connected to the data sensor; and the central control module acquires standard images through a smart terminal and updates and stores the standard images.

[0042] The access control system of this invention includes an indoor section and an outdoor section. The outdoor section houses data sensors, an access control camera, and a communication device. The control system for the access control camera can also be integrated into the outdoor section. The indoor and outdoor sections are connected, enabling simple communication and video preview functions.

[0043] The access control module controls the opening, closing, and alarm functions of access control systems. The data acquisition module collects data through various data sensors, including an access control camera, an infrared pyroelectric sensor, and a photosensor. The access control camera captures video or images, the infrared pyroelectric sensor collects heat data, and the photosensor collects light data.

[0044] The infrared pyroelectric sensor and the photosensitive sensor work together because the infrared pyroelectric sensor has a longer monitoring distance and can identify targets at a distance of about ten meters, but it can only identify targets that emit infrared light; the photosensitive sensor has a smaller monitoring range, so the two are combined to determine whether the target is in the image acquisition area.

[0045] In this invention, the central control module parses the area sensing data and determines whether the target is in the image acquisition area based on the area sensing data, including: receiving the area sensing data; identifying the target based on the heat data; determining whether the target is in the image acquisition area based on the photosensitivity data; or determining whether the target is in the image acquisition area based on the changing pattern of the heat data.

[0046] The received area sensor data can consist only of heat data. The central control module uses this heat data to determine if a person or animal (pet) is within the monitoring range. If a target is detected, it further analyzes whether the target is within the image acquisition area. Compared to traditional access control systems, this invention can identify not only people but also pets, making it more suitable for home use.

[0047] In a preferred embodiment, identifying a target based on thermal data and determining whether the target is within the image acquisition area based on photosensitive data includes: identifying the target based on thermal data; when the target height meets the requirements and the thermal intensity corresponding to the thermal data exceeds a thermal threshold, activating the photosensitive sensor to acquire photosensitive data; extracting the target's dwell time based on the photosensitive data; when the dwell time exceeds a set time, determining that the target is within the image acquisition area.

[0048] In this embodiment, after identifying the target based on heat data, the heat data is continuously analyzed. When the heat data reaches its maximum value or exceeds a heat threshold, a photosensitive sensor is activated to collect photosensitive data. The photosensitive data is then used to determine whether the target is within the image acquisition area. The image acquisition area is located in front of the access control camera, and targets within this area can be identified by the photosensitive sensor. This embodiment is suitable for targets whose height meets the requirements, such as pets like cats and dogs, which are relatively short and difficult for the photosensitive sensor to detect.

[0049] In another preferred embodiment, determining whether a target is within the image acquisition area based on the changing patterns of heat data includes: identifying the target based on heat data; when the target height does not meet the requirements, extracting and constructing a heat intensity change curve corresponding to the target; and determining whether the target is within the image acquisition area based on the heat intensity change trend in the heat intensity change curve.

[0050] When the height requirement is not met, it is impossible to determine whether the target is within the image acquisition area using combined photosensitive data. This embodiment relies solely on the trend of heat data changes. Specifically, as the target approaches the access control from a distance, its heat data gradually increases. Once it reaches and remains near the access control, its heat data tends to remain constant. Therefore, based on the duration and value of this constant heat data, it is possible to roughly determine whether the target is within the image acquisition area. It should be noted that the two techniques described above for determining whether a target is within the image acquisition area can be used individually or in series.

[0051] In this invention, when the target is in the image acquisition area, the central control module generates an image acquisition signal and sends it to the data acquisition module; the data acquisition module starts the access control camera to acquire image data according to the image acquisition signal; and the central control module matches the image data with a standard image. If the match is successful, an access control opening signal is generated; otherwise, a video recording signal is generated.

[0052] Once a target is identified and it is within the image acquisition area, the access control camera acquires valid image data. After the image data is successfully matched with any valid standard image, an access control opening signal is generated. If no access control opening signal is generated after the access control camera is activated, a video recording signal is generated.

[0053] In this invention, the central control module identifies abnormal behavior based on regional sensing data, including: extracting heat data or photosensitivity data within a target time range from the regional sensing data; marking the corresponding regional sensing data as abnormal data when the target is continuously identified based on heat data, but not within the image acquisition area when combined with photosensitivity data; or marking the corresponding regional sensing data as abnormal data when occlusion is continuously identified based on photosensitivity data, but the target cannot be identified based on heat data; counting the number of abnormal data within the target time range and marking it as YS; obtaining the behavior evaluation coefficient XPX using the formula XPX = α × YS; and determining that abnormal behavior exists when the behavior evaluation coefficient XPX is greater than the behavior evaluation threshold, and generating a video recording signal.

[0054] Before activating the access control camera, it's necessary to monitor for unusual behavior near the access control point. There are two main scenarios: 1) If thermal data is consistently present but no light-sensitive data is detected, someone may be passing by. If this happens multiple times within a target timeframe (one day or one week), it can be determined that there is loitering or spying behavior. In this case, the access control camera can be activated to capture the target's image, and warnings or deterrents can be issued through other means. 2) If light-sensitive data consistently identifies a target, but thermal data cannot be obtained, the target can be determined to be mechanical equipment or an obstruction. Again, the access control camera can be activated to capture the target's image, and warnings or deterrents can be issued through other means.

[0055] It should be noted that the most important criterion for judging abnormal behavior is the appearance of multiple abnormal data within the target time range. Abnormal behavior should not be judged based on a single abnormal data.

[0056] Please see Figure 2 The second aspect of this invention provides a method for controlling a home access control camera, which is executed based on a home access control camera control system. The method includes: sending a standard image to a central control module; performing image preprocessing on the standard image and then updating its storage; collecting and analyzing area sensing data; determining whether a target is within the image acquisition area based on the area sensing data; if yes, collecting image data; if no, identifying abnormal behavior; generating an access control signal when the image data successfully matches the standard image; or generating an access control signal when abnormal behavior is detected.

[0057] Standard images include user images or visitor images, specifically facial images of users and their family members, as well as facial images provided by visitors. Standard images are time-limited; theoretically, the validity period for standard images of resident users can be permanent, while the validity period for visitor images is shorter, such as one day or one week. After expiration, the used standard images are automatically invalidated and deleted.

[0058] Access control signals include access control opening signals and video recording signals. The access control opening signal is generated after the image data successfully matches a standard image, and is used by the access control module to automatically open the access control door. The video recording signal, on the other hand, is generated after image data matching fails or abnormal behavior is detected. Based on the video recording signal, the access control module controls the access camera to start and record video as evidence.

[0059] A third aspect of this invention provides a home access control camera control device, including a storage medium and a processor; the storage medium stores operation instructions, and the processor executes the operation instructions to control the operation of a home access control camera control system. The control device is built into the access control system and controls the access control camera by executing the built-in operation instructions.

[0060] The data in the above formula are all calculated by removing the dimensions and taking the numerical values. The formula is the closest to the real situation obtained by software simulation of a large amount of collected data. The preset parameters and preset thresholds in the formula are set by those skilled in the art according to the actual situation or obtained through simulation of a large amount of data.

[0061] Working principle of the invention:

[0062] The standard image is sent to the central control module, where it is preprocessed and then updated and stored. The regional sensing data is collected and analyzed to determine whether the target is within the image acquisition area. If yes, image data is collected; otherwise, abnormal behavior is identified.

[0063] When the image data is successfully matched with the standard image, an access control opening signal is generated; or when abnormal behavior is detected by combining thermal data or photosensitive data, a video recording signal is generated.

[0064] The above embodiments are only used to illustrate the technical methods of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical methods of the present invention without departing from the spirit and scope of the technical methods of the present invention.

Claims

1. A home access control camera control system, comprising a central control module, and a data acquisition module and an access control module connected thereto; the data acquisition module is connected to a data sensor in the smart access control system; the access control module is used to control the access control; characterized in that: The data acquisition module collects area sensing data through data sensors, and collects image data through access control cameras after receiving image acquisition signals sent by the central control module; the data sensors include access control cameras, infrared pyroelectric sensors, and photosensors; The central control module analyzes the area sensing data and determines whether the target is within the image acquisition area. If yes, it sends an image acquisition signal to the data acquisition module; otherwise, it identifies abnormal behavior and sends an access control signal to the access control module based on the image data or the identification result of abnormal behavior.

2. A home door guard camera control system according to claim 1, characterized in that, The central control module is communicatively and / or electrically connected to the data acquisition module and the access control module, respectively; wherein, the access control module is used to control the opening, closing, or alarm of the access control system; The data acquisition module communicates and / or is electrically connected to the data sensor; and the central control module acquires standard images through a smart terminal and updates and stores the standard images; wherein, the standard images include user images or visitor images, and the standard images are set with a valid time limit; the smart terminal includes a mobile phone or a computer.

3. The home door guard camera control system according to claim 1, wherein, The central control module parses the area sensing data and determines whether the target is within the image acquisition area based on the area sensing data, including: Receive area sensing data; the area sensing data includes thermal data and photosensitivity data; The target can be identified based on thermal data, and its location within the image acquisition area can be determined based on photosensitivity data; or the target can be determined based on the changing patterns of thermal data.

4. A home door guard camera control system according to claim 3, characterized in that, The step of identifying the target based on heat data and determining whether the target is within the image acquisition area based on photosensitivity data includes: The target is identified based on the heat data. When the target height meets the requirements and the heat intensity corresponding to the heat data exceeds the heat threshold, the photosensitive sensor is activated to collect the photosensitive data. The heat threshold is set based on experience. The dwell time of the target is extracted based on the photosensitive data. When the dwell time exceeds the set time, the target is determined to be in the image acquisition area. The set time is determined based on experience.

5. A home door guard camera control system according to claim 3, wherein, The step of determining whether a target is within the image acquisition area based on the changing patterns of heat data includes: Targets are identified based on thermal data. When the target height does not meet the requirements, the corresponding thermal intensity change curve is extracted and constructed. The target height requirement is set according to the acquisition height of the access control camera. The location of an image acquisition area can be determined by analyzing the trend of heat intensity changes in the heat intensity change curve.

6. A home door guard camera control system according to claim 3, wherein, When the target is within the image acquisition area, the central control module generates an image acquisition signal and sends it to the data acquisition module; the data acquisition module then activates the access control camera to acquire image data based on the image acquisition signal. as well as The central control module matches the image data with a standard image. If the match is successful, it generates an access control opening signal; otherwise, it generates a video recording signal.

7. A home access control camera control system according to claim 6, characterized in that, The central control module identifies abnormal behaviors based on regional sensing data, including: Extract heat data or photosensitivity data within the target time range from the area sensing data; If a target is continuously identified based on thermal data, but the target is not located in the image acquisition area when combined with photosensitivity data, the corresponding area's sensing data will be marked as abnormal data; or if an obstruction is continuously identified based on photosensitivity data, but the target cannot be identified based on thermal data, the corresponding area's sensing data will be marked as abnormal data. The number of abnormal data within the target time range is counted and marked as YS; the behavior evaluation coefficient XPX is obtained by formula XPX=α×YS; when the behavior evaluation coefficient XPX is greater than the behavior evaluation threshold, it is determined that there is abnormal behavior and a video recording signal is generated; where α is a proportional coefficient set according to experience.

8. A method for controlling a home access control camera, implemented based on a home access control camera control system according to any one of claims 1 to 7, characterized in that, include: The standard image is sent to the central control module, where it is preprocessed and then updated and stored. The standard image includes either a user image or a visitor image. Collect and analyze area sensing data to determine whether the target is within the image acquisition area; if yes, acquire image data; otherwise, identify abnormal behavior. An access control signal is generated when the image data is successfully matched with a standard image; or when abnormal behavior is detected. The access control signal includes an access control opening signal or a video recording signal.

9. A home access control camera control device, characterized in that, It includes a storage medium and a processor; the storage medium is used to store operation instructions, and the processor executes the operation instructions to control the operation of a home access control camera control system according to any one of claims 1 to 7.

Images