Hidden camera detection system to prevent false detection

Abstract

A hidden camera detection system that prevents false detections of hidden camera events by comparing the temperature at the location where a hidden camera event occurred with the average temperature inside the toilet over time. [Solution] A hidden camera detection system for preventing false detections, comprising: an infrared information collection device that collects the temperature inside the toilet; a remote monitoring device 200 that communicates with the device and compares the provided temperature changes inside the toilet with a temperature vector generated when a hidden camera is operating to determine whether a hidden camera event has occurred, and when an event occurs, compares the temperature at the location of the hidden camera event with the average temperature inside the toilet in a time series and determines that a hidden camera event has occurred only if the similarity is below a standard value; a hidden camera management server that communicates with the device 200 and transmits information about the occurrence of a hidden camera event and the location of the hidden camera to a management terminal when such information is received inside the toilet; and a management terminal that communicates with the server and displays the occurrence information and the location of the hidden camera to the administrator when such information is received.

Description

Technical Field

[0001] The present invention relates to a hidden camera detection system for preventing false detection, which can temporally compare the temperature at the position where a hidden camera event has occurred with the average temperature inside the toilet to prevent false detection of the hidden camera event.

Background Art

[0002] The recent development of semiconductor and digital technologies is remarkable. Along with this, small video imaging devices used for illegal photography are becoming increasingly intelligent. For this reason, in particular, most users who use public toilets for women are currently very anxious about illegal imaging devices and illegal imaging acts.

[0003] In particular, considering the criminal acts due to illegal photography that are detected more than 5,000 times each year, it is inferred that the actual number of criminal cases should be even more. Thus, preventing illegal imaging devices and their acts, which are the fundamental starting points of crimes that can act as social uneasiness factors such as personal information protection issues and sex crimes, is considered a very important fundamental measure. For this purpose, various types of hidden cameras have been developed, but there are various problems.

[0004] In the case of a hidden camera or an illegal imaging device, the present invention focuses on the fact that heat is generated during operation, and in a device designed to issue an alarm for a part where heat above a certain level is generated in a specific pattern at a specific position in a place such as a toilet, an alarm that must sound because it is misrecognized as if heat has been generated by IR reflection from other heat sources such as electric lights and videos instead of actual heat is issued.

[0005] In our daily lives, countless different types of electromagnetic waves exist in every space. Among these, there are electromagnetic waves that are visible to the human eye, such as visible light, as well as naturally occurring electromagnetic waves that are invisible to the human eye, such as infrared and ultraviolet rays, which exist just to the left and right of the visible light spectrum, and X-rays or laser waves that have been processed by humans. In particular, the theoretical background of this invention is the detection of hidden cameras or illegal surveillance devices using infrared wavelengths.

[0006] On the other hand, when detecting a hidden camera by sensing the heat generated when it is operating, a significant portion of the primary suspect data for the hidden camera is irrelevant due to IR reflection. This is because temperature data is collected by an IR sensor, and there are two types of distortion points in this data.

[0007] Firstly, because the temperature in a three-dimensional space is represented in two dimensions, it can appear as if it were the surrounding temperature, even though they are not in the immediate vicinity. Secondly, due to the characteristics of IR electromagnetic waves, the IR waves emitted from the material itself and the amount of IR waves received from the outside that are reflected in proportion to the material's properties are combined and represented.

[0008] This significant number of IR reflections leads to a high incidence of false detections, which directly damages the performance of hidden camera detectors and the reliability of the manufacturers. [Overview of the Initiative] [Problems that the invention aims to solve]

[0009] The problem that this invention aims to solve is to provide a hidden camera detection system that prevents false detection of hidden camera events by comparing the temperature at the location where a hidden camera event occurs with the average temperature inside the toilet over time. [Means for solving the problem]

[0010] The hidden camera detection system for preventing false detection according to the present invention comprises: an infrared information collection device 100 located in a toilet and collecting the temperature inside the toilet using infrared rays; a remote monitoring device 200 that communicates with the infrared information collection device 100 and compares the temperature change inside the toilet provided by the infrared information collection device 100 with a temperature vector related to the temperature generated when a hidden camera is operating to determine whether a hidden camera event has occurred, and finally determines that a hidden camera event has occurred only if the similarity between the temperature at the location of the hidden camera event and the average temperature inside the toilet is below a standard value when a hidden camera event occurs; a hidden camera management server 300 that communicates with the remote monitoring device 200 and transmits information about the occurrence of a hidden camera event and the location of the hidden camera to the management terminal 400 when it is received from the remote monitoring device 200 inside the toilet; and a management terminal 400 that communicates with the hidden camera management server 300 and displays information about the occurrence of a hidden camera event and the location of the hidden camera to the administrator when it is received.

[0011] Preferably, the infrared information collection device 100 includes a human body detection sensor 110 that detects the presence of a person located inside the toilet, an IR sensor 120 that measures the temperature inside the toilet at pre-set reference time intervals, and a sensing information notification unit 130 that provides the human body detection information confirmed by the human body detection sensor 110 and the temperature information inside the toilet measured at reference time intervals by the IR sensor 120 to the remote monitoring device 200.

[0012] Preferably, the long-range monitoring device 200 communicates with the infrared information collection device 100 and includes a sensing information receiving unit 210 that receives human body detection information confirmed by the human body detection sensor 110 and temperature information inside the toilet measured at reference time intervals by the IR sensor 120, a temperature information storage unit 220 that stores the temperature information inside the toilet measured by the IR sensor 120 received from the infrared information collection device 100, matching it with the location information inside the toilet, a hidden camera temperature vector registration unit 230 that stores it as a vector related to the temperature generated when the hidden camera is operating, and the temperature inside the toilet measured by the IR sensor 120 received from the infrared information collection device 100 in real time. The system is characterized by comprising: a hidden camera calculation unit 240 that infers whether or not a hidden camera exists by comparing temperature information with the temperature vector of a hidden camera that has already been registered; a false detection determination unit 250 that, if a suspicious signal for a hidden camera is generated by the hidden camera calculation unit 240, compares the temperature data of the suspected location of the hidden camera with the average temperature inside the toilet during the same time period and determines that the similarity is above a standard value, and if the similarity is below a standard value, ultimately determines that a hidden camera event has occurred; and a hidden camera event occurrence notification unit 260 that, if the false detection determination unit 250 ultimately determines that a hidden camera event has occurred, transmits the location of the toilet to the server and notifies the server of the occurrence of the hidden camera event.

[0013] Preferably, the hidden camera calculation unit 240's determination of the occurrence of a hidden camera event includes: a first step of classifying and storing the space inside the toilet into an M×N grid space; a second step of forming an M×N temperature data grid by associating the temperature data structure inside the toilet provided by the infrared information acquisition device 100 to the grid space inside the toilet in order to confirm the presence or absence of a hidden camera; a third step of calculating the similarity by moving the temperature vectors of already registered hidden cameras horizontally and vertically on the M×N temperature data grid and comparing them one by one; a fourth step of starting a count if the similarity exceeds a preset standard value as a result of the comparison; and after a predetermined standard time has elapsed, The system is characterized by including the following steps: when a temperature data structure inside the toilet is received from the infrared information collection device 100, the second and third steps are repeated in real time to compare the temperature data structure inside the toilet with the temperature vector of the hidden camera and calculate the similarity, and if it exceeds a set reference value at the same location, the count is incremented by 1 in the fifth step; when the count that has been incremented by 1 reaches the reference count, a suspected hidden camera signal is generated; and if a suspected hidden camera signal is generated, the suspected location of the hidden camera, the temperature data of the suspected location, and the temperature data inside the toilet are passed to the false detection judgment unit 250.

[0014] Preferably, the final confirmation of the occurrence of a hidden camera event by the false detection determination unit 250 is characterized by including: a first step in which the hidden camera calculation unit 240 receives the suspected location of the hidden camera and overall temperature data after a suspected hidden camera signal is generated; a second step in which the temperature data for each time period inside the toilet stored via the temperature information storage unit 220 is checked and the average temperature inside the toilet corresponding to the same time as the suspected hidden camera time is calculated; a third step in which the similarity of temperature changes between the temperature at the suspected hidden camera location and the average temperature inside the toilet is measured for each suspected hidden camera time provided by the hidden camera calculation unit 240; and a fourth step in which, if the similarity of temperature changes between the temperature at the suspected location and the average temperature inside the toilet is less than a reference value, it is determined that a hidden camera event has occurred; if it is above the reference value, it is finally determined that a hidden camera event has not occurred; and if it is below the reference value, it is finally determined that a hidden camera event has occurred.

[0015] Preferably, the hidden camera management server 300 includes a hidden camera event management unit 310 that stores and manages hidden camera event information received from the remote monitoring device 200, a hidden camera location confirmation unit 320 that confirms the location of a toilet included in the hidden camera event information provided from the remote monitoring device 200, and a management terminal notification unit 330 that provides the location of the toilet where the hidden camera event occurs to the management terminal 400. The management terminal 400 is characterized by comprising a hidden camera event receiving unit 410 that receives hidden camera event information including the location in the toilet from the hidden camera management server 300, and a hidden camera location display unit 420 that displays the toilet location information received from the hidden camera management server 300 on the screen. [Effects of the Invention]

[0016] This invention allows for a temporal comparison of the temperature at the location where a hidden camera event occurs inside the toilet with the average temperature inside the toilet. This has the effect of preventing false detections that would otherwise occur naturally due to IR reflection, even though no hidden camera is installed.

[0017] According to the present invention, even though it is not actually there, an alarm is issued based only on the heat source, so that there is an effect of preventing false detection, that is, false detection.

[0018] If the method of the present invention is applied, false detection can be prevented up to a level of 90% to 95% at least.

Brief Description of the Drawings

[0019] [Figure 1] It is a block diagram of an infrared information collection device 100 according to the present invention. [Figure 2] It is a block diagram of a long-distance monitoring device 200 according to the present invention. [Figure 3] It is an exemplary diagram of a temperature data structure inside a toilet of a hidden camera arithmetic unit 240 according to the present invention. [Figure 4] It is an exemplary diagram for confirming the similarity in the temperature data structure inside the toilet using the temperature vector of the hidden camera of the hidden camera arithmetic unit 240 according to the present invention. [Figure 5a] It is an exemplary graph showing the relationship of the similarity of the temperature change between the temperature at the suspected position of the hidden camera of the false detection determination unit 250 according to the present invention and the average temperature inside the toilet. [Figure 5b] It is an exemplary graph showing the relationship of the similarity of the temperature change between the temperature at the suspected position of the hidden camera of the false detection determination unit 250 according to the present invention and the average temperature inside the toilet. [Figure 6] It is a block diagram of a hidden camera management server 300 according to the present invention. [Figure 7] It is a block diagram of a management terminal 400 according to the present invention.

Embodiments for Carrying Out the Invention

[0020] Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

[0021] Here, when assigning reference numerals to the components in each figure, it should be noted that for the same components, as far as possible, the same numerals are used even if they are shown on different drawings. Also, in the following description of this embodiment, when it is recognized that a detailed description of known techniques related to the present invention may obscure the gist of the present invention, the detailed description thereof will be omitted. Note that when a certain part states that a component "includes" something, this means that, unless otherwise specified, it does not exclude other components, and other components may be further included.

[0022] The hidden camera detection system for preventing false detection according to the present invention includes an infrared information collection device 100, a long-distance monitoring device 200, a hidden camera management server 300, and a management terminal 400.

[0023] The infrared information collection device 100 is located in the toilet and collects the temperature inside the toilet using infrared rays. Usually, the infrared information collection device 100 is installed on the ceiling of the toilet. Note that the infrared information collection device 100 is preferably installed for each individual compartment of each toilet.

[0024] The long-distance monitoring device 200 communicates with the infrared information collection device 100 and primarily determines the occurrence of a hidden camera event by comparing the temperature change inside the toilet provided by the infrared information collection device 100 with a vector related to the temperature generated during the operation of the hidden camera. When a hidden camera event occurs, the long-distance monitoring device 200 compares the temperature at the location of the hidden camera event with the average temperature inside the toilet in a time series and finally determines that a hidden camera event has occurred only when the similarity is below a reference value. At this time, the long-distance monitoring device 200 may manage one infrared information collection device 100, or may manage a number of infrared information collection devices 100.

[0025] The hidden camera management server 300 communicates with the long-distance monitoring device 200 and, when receiving information on the occurrence of a hidden camera event and the location information of the hidden camera inside the toilet from the long-distance monitoring device 200, transmits it to the management terminal 400 side.

[0026] The management terminal 400 communicates with the hidden camera management server 300 and displays information about the occurrence of hidden camera incidents and the location of hidden cameras to the administrator when received. Preferably, the management terminal 400 is equipped with UI software that allows the administrator to efficiently check the status of equipment in individual toilets and the presence or absence of hidden cameras.

[0027] As shown in Figure 2, the infrared information collection device 100 includes a human body detection sensor 110, an IR sensor 120, and a sensing information notification unit 130. In this case, since the infrared information collection device 100 is installed on the ceiling of the toilet, it collects temperature information in two dimensions from the three-dimensional space it looks down on and transmits it to the remote monitoring device 200.

[0028] The human body detection sensor 110 detects the presence of a person located inside the toilet. Such human body detection sensors 110 detect the human body using passive infrared (PIR) sensors, lasers, ultrasonic sensors, etc. In particular, PIR sensors can detect the heat (thermal temperature) emitted from the human body and calculate the change in temperature to detect movement.

[0029] The IR sensor 120 measures the temperature inside the toilet at pre-set reference time intervals (e.g., 10-20 seconds). The IR sensor 120 is matched to the toilet partitions on a 1:1 basis. When measuring the temperature inside a toilet with multiple partitions using one IR sensor 120, it will either rotate or move while measuring the temperature inside the toilet at the set reference time intervals, or, if matched to the toilet partitions on a 1:1 basis, it will measure the temperature inside the toilet at the set reference time intervals. It is preferable that the IR sensor measures the temperature according to different criteria when there are multiple toilet partitions.

[0030] The sensing information notification unit 130 provides the remote monitoring device 200 with human body detection information confirmed by the human body detection sensor 110 and temperature information inside the toilet measured at standard time intervals by the IR sensor 120. The sensing information notification unit also provides the unique identification information of the infrared information collection device 100.

[0031] This infrared information collection device 100 allows for the detection of people entering and leaving the toilet using a human body detection sensor 110, and enables the checking of the temperature inside the toilet at set reference time intervals using an IR sensor 120.

[0032] As shown in Figure 3, the remote monitoring device 200 includes a sensing information receiving unit 210, a temperature information storage unit 220, a hidden camera temperature vector registration unit 230, a hidden camera calculation unit 240, a false detection determination unit 250, and a hidden camera event occurrence notification unit 260.

[0033] The sensing information receiving unit 210 communicates with the infrared information collection device 100 and receives human body detection information confirmed by the human body detection sensor 110 and temperature information inside the toilet measured at standard time intervals by the IR sensor 120.

[0034] The temperature information storage unit 220 stores the temperature information inside the toilet, measured by the IR sensor 120 received from the infrared information collection device 100, by matching it with the location information inside the toilet. When the temperature information storage unit 220 receives temperature information inside the toilet from the infrared information collection device 100, it is preferable to manage it temporally. At this time, the sensing information receiving unit 210 is also provided with the unique identification information of the infrared information collection device 100, so it becomes possible to match the temperature information from the received IR sensor 120 with the toilet location.

[0035] The hidden camera temperature vector registration unit 230 stores temperature vectors related to the temperature generated when the hidden camera is operating. Such hidden camera temperature vectors are used as indicators for identifying hidden cameras.

[0036] The hidden camera calculation unit 240 compares the temperature information inside the toilet, measured by the IR sensor 120 and received in real time from the infrared information collection device 100, with the temperature vector of a previously registered hidden camera to infer whether or not a hidden camera is present. At this time, it is preferable that the hidden camera calculation unit 240 first checks the human body detection information received by the human body detection sensor 110 to confirm that there is no user, and then checks the temperature information inside the toilet measured by the IR sensor 120.

[0037] The hidden camera calculation unit 240 will determine the presence or absence of a hidden camera through the following process.

[0038] First, the interior space of the toilet is classified and memorized as an M x N grid space (first stage).

[0039] To confirm the presence or absence of a hidden camera, the temperature data structure inside the toilet provided by the infrared information acquisition device 100 is mapped to the grid space inside the toilet to form an M×N temperature data grid (second step) (see Figure 4). At this time, it is preferable that the formation of the M×N temperature data grid is performed after the human body detection information confirmed by the human body detection sensor 110 is received.

[0040] Subsequently, the temperature vectors of already registered hidden cameras are moved horizontally and vertically on an M×N temperature data grid and compared one by one to calculate the similarity (third stage) (see Figure 5).

[0041] If the similarity score exceeds a predetermined threshold, the counting process begins (stage 4).

[0042] Then, after a predetermined reference time has elapsed, if the temperature data structure inside the toilet is received again from the infrared information collection device 100, the second and third stages are repeated to compare the temperature data structure inside the toilet with the hidden camera temperature vector in real time and calculate the similarity. If the set reference value is exceeded at the same location, the count is incremented by 1 (fifth stage).

[0043] This process is repeated until the count, which is incremented by one each time, reaches a baseline count (e.g., 50), at which point a signal indicating a hidden camera is generated (stage 6).

[0044] Then, if a signal indicating a hidden camera is generated, the suspected location of the hidden camera from count 1 to the final count 50, along with temperature data for that location and temperature data inside the toilet, are passed to the false detection unit 250 (stage 7).

[0045] Through this process, the hidden camera calculation unit 240 becomes able to suspect a hidden camera if the temperature inside the toilet is maintained at approximately the same temperature as the temperature of the hidden camera.

[0046] The false detection unit 250, upon receiving a suspected hidden camera signal from the hidden camera calculation unit 240, determines that it is a false detection if the temperature data of the suspected hidden camera location has a similarity to the average temperature inside the toilet during the same time period that is equal to or greater than a standard value. If the similarity is below the standard value, it ultimately determines that a hidden camera event has occurred. In this case, the average temperature inside the toilet can be any one of the following: the overall average temperature inside the toilet provided by the IR sensor 120, the average temperature at a specific point, or the average temperature of a specific area. Furthermore, it is preferable that the temperature corresponding to the hidden camera location and the average temperature inside the toilet at each time point are composed of temperature data from the period between the initial occurrence of the event and its confirmation, representing a state where the event did not occur, i.e., the temperature before the event and the monitoring temperature after the event was confirmed.

[0047] The false detection unit 250 will determine whether or not a suspected signal from a hidden camera is a false detection through the following process.

[0048] First, the false detection unit 250 receives the suspected location of a hidden camera and overall temperature data after a suspected hidden camera signal is generated in the hidden camera calculation unit 240 (first stage). This makes it possible to check the temperature data for each time period used to generate the suspected hidden camera signal.

[0049] Then, the temperature data for each time period inside the toilet, stored via the temperature information storage unit 220, is checked, and the average temperature inside the toilet corresponding to the same time period as the suspected hidden camera is calculated (second stage).

[0050] Subsequently, the similarity of temperature changes in temperature data relating to the temperature at the suspected location of the hidden camera and the average temperature inside the toilet, provided by the hidden camera calculation unit 240 for each suspected time of the hidden camera, is measured (third stage) (see Figures 5a and 5b). At this time, one or more formulas can be used to calculate the similarity, selected from the normalized cross-correlation formula represented by Formula 1 below, cosine similarity, and normalized Euclidean distance.

[0051]

number

[0052] JPEG2026058358000003.jpg24145

[0053] Then, if the similarity between the temperature change at the suspected location and the average temperature inside the toilet is below a standard value, it is ultimately determined that a hidden camera incident occurred (Figure 5a). If the similarity is above the standard value, it is ultimately determined that a hidden camera incident did not occur (fourth stage) (Figure 5b). With this false detection determination unit 250, if the temperature change at the location of the hidden camera is at almost the same level as the temperature change inside the toilet, it contradicts the characteristic of the hidden camera that it generates a considerable amount of heat when operating, and therefore it is ultimately possible to determine that a suspected hidden camera incident did not occur.

[0054] With this false detection unit 250, even if a suspicious signal for a hidden camera is generated in the hidden camera calculation unit 240, if it is at approximately the same level as the temperature change inside the toilet, it will be inconsistent with the characteristics of a hidden camera, and therefore it will be possible to ultimately determine that a suspicious event for a hidden camera did not occur. In other words, it becomes possible to determine whether or not it is a false detection due to IR reflection.

[0055] If the hidden camera incident notification unit 260 ultimately determines that a hidden camera incident has occurred, it transmits the location in the toilet to the server and notifies the server of the occurrence of the hidden camera incident. At this time, it is preferable that the hidden camera incident notification unit 260 provides the temperature corresponding to the location of the hidden camera and the average temperature inside the toilet at each time point when notifying the occurrence of the hidden camera incident.

[0056] Through this process, the remote monitoring device 200, based on the judgment that the effect of a localized temperature increase on the average temperature inside the toilet is negligible, can accurately determine the presence or absence of a hidden camera event by comparing the average temperature inside the toilet with the temperature at the alarm location over time, overcoming the conventional practice of having a considerable number of hidden camera events being due to unnecessary IR reflections.

[0057] As shown in Figure 6, the hidden camera management server 300 comprises a hidden camera event management unit 310, a hidden camera location confirmation unit 320, and a management terminal notification unit 330.

[0058] The hidden camera event management unit 310 stores and manages information about hidden camera events received from the remote monitoring device 200.

[0059] The hidden camera location confirmation unit 320 confirms the location of the hidden camera in the toilet, which is included in the hidden camera event information provided by the remote monitoring device 200.

[0060] The management terminal notification unit 330 provides the management terminal 400 with the location of the toilet where the hidden camera incident occurred. This allows the administrator to quickly take action after confirming the fact of the hidden camera incident and its location in the relevant toilet, as received via the management terminal 400.

[0061] As shown in Figure 7, the management terminal 400 includes a hidden camera event receiving unit 410 and a hidden camera location display unit 420. In this case, it is preferable that the management terminal 400 is equipped with UI software that allows the administrator to efficiently check the status of equipment in individual toilets and the presence or absence of hidden cameras.

[0062] The hidden camera event receiving unit 410 receives hidden camera event information, including the location in the toilet, from the hidden camera management server 300.

[0063] The hidden camera location display unit 420 displays the location information of the toilet received from the hidden camera management server 300 on the screen. In this case, it is preferable that the hidden camera location display unit 420 displays the location of the toilet on a map.

[0064] Although the present invention has been described above with limited embodiments and drawings, the technical idea of ​​the present invention is not limited in any way to these, and it goes without saying that it is possible for a person with ordinary skill in the art to which the present invention belongs to to implement the invention with various modifications and variations within the equivalent scope of the technical idea and claims of the present invention.

Claims

1. An infrared information collection device (100) located in the toilet and which collects the temperature inside the toilet using infrared rays, A remote monitoring device (200) communicates with an infrared information acquisition device (100) and compares the temperature changes inside the toilet provided by the infrared information acquisition device (100) with a temperature vector generated when a hidden camera is operating to make a preliminary determination of whether or not a hidden camera event has occurred. When a hidden camera event occurs, it compares the temperature at the location of the hidden camera event with the average temperature inside the toilet in a time series and finally determines that a hidden camera event has occurred only if the similarity is below a certain threshold. While communicating with the remote monitoring device (200), if the remote monitoring device (200) receives information about the occurrence of a hidden camera incident inside the toilet and the location information of the hidden camera, the hidden camera management server (300) transmits this information to the management terminal (400). While communicating with the hidden camera management server (300), if information about the occurrence of a hidden camera incident and the location information of the hidden camera are received, a management terminal (400) will display this information to the administrator. It is equipped with, The infrared information acquisition device (100) is A human body detection sensor (110) located inside the toilet detects the presence of a person, An IR sensor (120) that measures the temperature inside the toilet at pre-set reference time intervals, A sensing information notification unit (130) provides human body detection information confirmed by a human body detection sensor (110) and temperature information inside the toilet measured at standard time intervals by an IR sensor (120) to a remote monitoring device (200). Equipped with, The remote monitoring device (200) is A sensing information receiving unit (210) communicates with an infrared information collection device (100) and receives human body detection information confirmed by a human body detection sensor (110) and temperature information inside the toilet measured at standard time intervals by an IR sensor (120), A temperature information storage unit (220) stores temperature information inside the toilet, measured by an IR sensor (120) received from an infrared information collection device (100), by matching it with location information inside the toilet. A hidden camera temperature vector registration unit (230) stores the temperature vector generated when the hidden camera is operating, A hidden camera calculation unit (240) infers whether or not a hidden camera exists by comparing the temperature information inside the toilet, measured by an IR sensor (120) received in real time from an infrared information collection device (100), with the temperature vector of a hidden camera that has already been registered. If a suspected hidden camera signal is generated in the hidden camera calculation unit (240), the false detection determination unit (250) determines that it is a false detection if the temperature data of the suspected hidden camera location has a similarity to the average temperature inside the toilet during the same time period that is above a certain threshold, and if the similarity is below the threshold, it ultimately determines that a hidden camera event has occurred. If the false detection detection unit (250) ultimately determines that a hidden camera incident has occurred, the hidden camera incident notification unit (260) transmits the location of the toilet to the server and notifies the server of the occurrence of the hidden camera incident, A hidden camera detection system for preventing false detection, characterized by having the following features.

2. The hidden camera detection system for preventing false detection according to claim 1, characterized in that the management terminal (400) is equipped with UI software that allows the administrator to efficiently check the status of equipment in individual toilets and whether or not there are hidden cameras.

3. The hidden camera detection system for preventing false detection according to claim 1, characterized in that the IR sensor (120) measures the temperature inside a toilet having multiple partitions by rotating or moving while measuring the temperature inside the toilet at set reference time intervals, or when it is matched to the partitions of the toilet at a 1:1 ratio, it measures the temperature inside the toilet at set reference time intervals.

4. The hidden camera detection system for preventing false detection according to claim 1, characterized in that the sensing information notification unit (130) also provides unique identification information of the infrared information collection device (100).

5. The hidden camera detection system for preventing false detection according to claim 1, characterized in that the hidden camera calculation unit (240) checks the human body detection information confirmed by the human body detection sensor (110) to confirm that there is no user, and then checks the temperature information inside the toilet measured by the IR sensor (120).

6. The hidden camera calculation unit (240) determines the occurrence of a hidden camera event as follows: The first stage involves classifying and storing the interior space of the toilet into an M x N grid space, In order to confirm the presence or absence of a hidden camera, the second step is to associate the temperature data structure inside the toilet provided by the infrared information acquisition device (100) with the grid space inside the toilet to form an M x N temperature data grid, The third stage involves calculating the similarity by comparing the temperature vectors of already registered hidden cameras one by one while moving them horizontally and vertically on an M x N temperature data grid, The comparison results indicate that if the similarity exceeds a predetermined threshold, a fourth stage begins where counting starts. After a predetermined reference time has elapsed, if the temperature data structure inside the toilet is received again from the infrared information acquisition device (100), the second and third stages are repeated to compare the temperature data structure inside the toilet with the hidden camera temperature vector in real time and calculate the similarity, and if the set reference value is exceeded at the same location, the fifth stage is performed to increment the count by 1, When the count, which is incremented by one each time, reaches a baseline count, it enters a sixth stage that generates a signal suggesting a hidden camera, If a signal indicating a hidden camera is detected, the seventh step involves transferring the suspected location of the hidden camera, the temperature data of that location, and the temperature data inside the toilet to the false detection unit (250). A hidden camera detection system for preventing false detection according to claim 1, characterized by including the following:

7. The final confirmation of the occurrence of a hidden camera event by the false detection unit (250) is as follows: In the hidden camera calculation unit (240), after a signal indicating a suspected hidden camera is generated, the first step is to receive the suspected location of the hidden camera and the overall temperature data. The second step involves checking the temperature data stored inside the toilet for each time period via the temperature information storage unit (220), and calculating the average temperature inside the toilet corresponding to the same time period as the suspected hidden camera period. A third step involves measuring the similarity of temperature changes in temperature data relating to the temperature at the suspected location of the hidden camera and the average temperature inside the toilet, for each suspected time period of the hidden camera provided by the hidden camera calculation unit (240), In the fourth stage, if the similarity of temperature changes between the temperature at the suspected location and the average temperature inside the toilet is below a certain threshold, it is determined that a hidden camera incident occurred; if it is above the threshold, it is ultimately determined that no hidden camera incident occurred; and if it is below the threshold, it is ultimately determined that a hidden camera incident occurred. A hidden camera detection system for preventing false detection according to claim 1, characterized by including the following:

8. The hidden camera detection system for preventing false detection according to claim 7, characterized in that the average temperature inside the toilet is one of the following: the average temperature of the entire toilet, the average temperature at a specific point, or the average temperature of a specific area.

9. The hidden camera detection system for preventing false detection according to claim 7, characterized in that the hidden camera event notification unit (260) provides the temperature corresponding to the location of the hidden camera and the average temperature inside the toilet at each time when a hidden camera event occurs.

10. The false detection detection system for hidden cameras according to claim 7, characterized in that the similarity of the false detection judgment unit (250) is calculated using one or more formulas selected from the normalized cross-correlation formula, cosine similarity, and normalized Euclidean distance shown in Formula 1 below. [Math 1] 【number】

11. The hidden camera detection system for preventing false detections according to claim 9, characterized in that the temperature corresponding to the location of the hidden camera and the average temperature inside the toilet at each time point are composed of temperature data from the period from the initial occurrence of the event to the confirmation of the event, centered on the temperature when the event did not occur, i.e., the temperature before the event and the monitoring temperature after the confirmation of the event.

12. The hidden camera management server (300) is A hidden camera event management unit (310) stores and manages hidden camera event information received from a remote monitoring device (200), A hidden camera location confirmation unit (320) confirms the location of the toilet included in the hidden camera event information provided by the remote monitoring device (200), A management terminal notification unit (330) provides the location of the toilet where the hidden camera incident occurred to the management terminal (400), Equipped with, The management terminal (400) is A hidden camera event receiving unit (410) receives hidden camera event information, including the location in the toilet, from a hidden camera management server (300), A hidden camera location display unit (420) that displays location information in the toilet received from a hidden camera management server (300) on the screen, A hidden camera detection system for preventing false detection according to claim 1, characterized by comprising the above.

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