JP6561528B2 - Monitoring device and program - Google Patents

Description

  The present invention relates to a monitoring device and a program.

  Japanese Patent Application Laid-Open No. 2004-151561 describes a technique for preventing the taking out of confidential documents. In this technique, the gate is provided with a function of detecting a magnetic material using the large Barkhausen effect, and the gate is closed when a magnetic material encased in paper is detected.

JP 2007-036498 A

  An object of the present invention is to monitor the taking-out of an article using information obtained by statistically processing the detection result of the taking-out of the article.

The invention according to claim 1, and a collecting unit that aggregates each gate in each period in which removal of articles in each of a plurality of gates has been determined the number of detection times sensed, the counting result by the collecting unit, said plurality Output means for outputting information relating to a gate for enhancing monitoring among the gates, and the output means provides a monitoring device for outputting instruction information for increasing detection sensitivity of the gate for enhancing monitoring .
The invention according to claim 2, in the monitoring apparatus according to claim 1, wherein the output means is changed and outputs side by side in accordance with counting result for each of the gates of the number of the detection times.
According to a third aspect of the present invention, in the monitoring device according to the first aspect, the output means outputs a totaling result of gates that enhance the monitoring based on the totaling result.
The invention according to claim 4 is the monitoring device according to claim 1, wherein the indication information, the exciting current supplied to the exciting coil which applies an oscillating magnetic field to the magnetic body provided in the article, to the magnetic body An instruction to adjust at least one of the threshold values of the degree of coincidence when determining whether to take out the article based on the degree of coincidence between a waveform of a pulse generated by the magnetic body when an oscillating magnetic field is applied and a waveform stored in advance. is there.
According to a fifth aspect of the present invention, in the monitoring device according to the fifth aspect , the instruction information is an instruction to increase the excitation current to a gate that strengthens the monitoring.
According to a sixth aspect of the present invention, in the monitoring device according to the first aspect, for each of the plurality of gates, an excitation current supplied to an excitation coil that causes a vibrating magnetic field to act on a magnetic body provided in the article and / or When the article is taken out based on the degree of coincidence between the waveform of the pulse generated by the magnetic body when the oscillating magnetic field acts on the magnetic body and the waveform stored in advance, the threshold of the degree of coincidence is taken out by the article. An adjustment means for adjusting to either a setting for reducing non-detection in which take-out is not detected but being detected, or a setting for reducing false detection in which take-out is detected even though the article is not taken out I have.
The invention according to claim 7, the computer, and aggregation means for aggregating each gate in each of the plurality of gates in each period in which removal of articles has been determined the number of detection times sensed, from the aggregation result of the tallying unit , a program to function as output means for outputting information about the gate to enhance the monitoring of the plurality of gates, and the output means, the instruction information for increasing the detection sensitivity of the gate to enhance the monitoring Provide a program to output .

According to the first and seventh aspects of the invention, it is possible to monitor the removal of an article using information obtained by statistically processing the detection result of the removal of the article.
According to the invention which concerns on Claim 2 , compared with the case where a total result is not rearranged, a user can make it easy to grasp | ascertain a monitoring condition.
According to the invention which concerns on Claim 3 , compared with the case where the total result of the gate which strengthens monitoring is not output, a user can make it easy to grasp | ascertain a monitoring condition .
According to the invention which concerns on Claim 4 , in the structure which detects taking-out of articles | goods using the magnetic body which generate | occur | produces a pulse by an oscillating magnetic field, monitoring of the selected gate can be strengthened.
According to the fifth aspect of the present invention, compared to the case where the excitation current is constant regardless of whether or not the gate enhances monitoring, the non-detection in which the carry-out is not detected even though the article is taken out is reduced. Can do.
According to the invention which concerns on Claim 6 , it can be selected whether to give priority to the reduction of non-detection or the reduction of false detection.

The figure which shows the monitoring system. The figure which shows hardware constitutions. The figure which shows monitoring data. 5 is a flowchart showing the operation of the monitoring device 2. The figure which shows the displayed count result. The figure which shows another example of a total result. The figure which shows another example of a total result. The figure which shows another example of a total result. The figure which shows the content of the setting of an exciting current and a threshold value. The flowchart which shows the procedure which adjusts a detection sensitivity. The figure which shows the functional block of the monitoring apparatus.

An example of an embodiment of the present invention will be described.
<Configuration>
FIG. 1 is a diagram showing a monitoring system 1. The monitoring system 1 includes a monitoring device 2 (an example of an information processing device), a gate 3, and a communication line 4. In this example, the gates 3A, 3B, 3C, 3D, 3E, and 3F are illustrated, but the number of gates may be any number as long as it is plural. Further, when not distinguishing a plurality of gates, they are collectively referred to as gates 3.

  The gate 3 is a gateway through which a person passes when entering or leaving a permitted area where handling of confidential documents is permitted. Handling confidential documents is actions such as storage, browsing, creation, and carrying of confidential documents. Although taking out of confidential documents from the authorized area is prohibited by regulations, confidential documents may be taken out of the authorized area against the regulations. In the present embodiment, there is a mechanism for detecting the taking-out of a confidential document at the position of the gate 3. One or more gates 3 are provided in the permission area. The gate 3 includes two panels provided to face each other with a space for a person to pass therethrough. The gate 3 and the monitoring device 2 are connected by a communication line 4 such as a LAN (Local Area Network) or the Internet. The monitoring device 2 is a device for processing information acquired from the gate 3.

  A confidential document is a document created using a printing paper (hereinafter referred to as a magnetic paper) with a magnetic wire inserted therein as a recording medium. The magnetic wire is a wire made of an amorphous magnetic material and thinner than the thickness of the printing paper, and causes periodic magnetization reversal when a vibrating magnetic field acts (large Barkhausen effect). Only paper with magnetic material is allowed by the rules for handling in the permitted area. By convention, paper that is not magnetic is not allowed to be brought into the permitted area.

  FIG. 2 is a diagram illustrating a hardware configuration. In the figure, one of a plurality of gates is shown. The monitoring device 2 includes a control unit 21, a storage unit 22, a communication unit 23, a display unit 24, and a reception unit 25. The control unit 21 includes an arithmetic device such as a CPU and a storage device such as a ROM and a RAM. The ROM stores firmware that describes hardware and OS startup procedures. The RAM is used for storing data when the CPU executes an operation. The storage unit 22 includes, for example, a hard disk storage device, and stores an OS, application programs, and the like. The communication unit 23 includes a communication I / F for performing communication with the control device provided in the gate 3. The display unit 24 includes a liquid crystal display device and the like. The reception unit 25 includes a keyboard and a mouse.

Each of the plurality of gates 3 has the following configuration. The gate 3 includes a detection device 5, a human sensor 6, a photographing device 7, and a control device 8.
The detection device 5 detects the take-out of confidential documents from the permitted area. Specifically, the detection device 5 includes an excitation coil 51, a power source 52, an antenna 53, and a detection circuit 54. The exciting coil 51 is supplied with AC power from the power source 52 and generates an oscillating magnetic field. As the person carrying the confidential document approaches the gate 3, the amplitude of the oscillating magnetic field acting on the magnetic wire increases. When the amplitude of the oscillating magnetic field reaches a threshold value, periodic magnetization reversal occurs in the magnetic wire. The magnetic wire generates an electrical pulse accompanying the magnetization reversal.

  For example, the detection circuit 54 determines whether or not a confidential document is taken out based on the waveform of the pulse received by the antenna 53. Specifically, a waveform of a pulse generated when a paper with a magnetic material is brought close to the detection device 5 is stored in the detection circuit 54 in advance. The detection circuit 54 compares the received pulse waveform with a pre-stored waveform to determine the degree of coincidence between the two, and determines whether the confidential document is taken out based on the degree of coincidence. The degree of coincidence is represented, for example, by a correlation coefficient between the received pulse waveform and a previously stored waveform. When the calculated correlation coefficient reaches the threshold value, the detection circuit 54 determines that the confidential document has been taken out, and transmits a detection signal indicating that the confidential document has been taken out to the control device 8.

  Note that the object to be taken out by the detection device 5 is not limited to a confidential document. For example, by attaching a magnetic wire to an article other than paper, the take-out of the article may be detected. That is, the confidential document is an example of an article that the detection device detects taking out.

  The human sensor 6 detects that a person has passed through the gate 3. The human sensor 6 includes, for example, a light source that emits infrared light in one panel of the gate 3, a light receiving element that receives infrared light in the other panel, and when the infrared light received by the light receiving element is blocked, A passing signal indicating that a person has passed through the gate 3 is transmitted to the control device 8.

  When the control device 8 receives a passage signal from the human sensor 6, the control device 8 instructs the photographing device 7 to perform photographing. The photographing device 7 photographs a person passing through the gate 3 in accordance with this instruction. The photographing device 7 is, for example, a digital still camera, and the angle of view is set so that at least the upper body of a person passing through the gate is photographed. The photographing device 7 generates image data representing the photographed image and transmits it to the control device 8.

  FIG. 3 is a diagram showing monitoring data. The control device 8 generates monitoring data and transmits the monitoring data to the monitoring device 2 when the passage signal is received from the human sensor 6. The monitoring data includes items of “passing date and time”, “passing gate”, “document takeout presence / absence”, and “image presence / absence”. “Pass date and time” is the date and time when a person passed through the gate 3, that is, the date and time when a pass signal was received from the human sensor 6. When the control device 8 receives the passage signal, the control device 8 acquires the date and time by a clock function provided in the control device 8. “Passing gate” is information for identifying a gate through which a person has passed. The control device 8 stores an identifier (eg, 3A, 3B) of the gate 3 where the control device 8 is installed. “Document take-out presence / absence” indicates the presence / absence of take-out of a confidential document, which is “present” when a detection signal is received simultaneously with the reception of the passage signal, and “no” when it is not received. However, when a confidential document is taken out, there is a time difference between the reception of the passage signal and the reception of the detection signal. Therefore, if the time difference between the reception of the two is equal to or less than a threshold (for example, 1 second), It is determined that the detection signals are received simultaneously. “Image presence / absence” is presence / absence of image data generated by the photographing apparatus 7. When there is image data, the control device 8 transmits the image data to the monitoring device 2 together with the monitoring data.

  Note that the monitoring device 2 may have the function of the control device 8. The control device 8 may be a device that includes an arithmetic device such as a CPU and a storage device such as a ROM and a RAM, and that implements the above functions by executing a program. It may be a device implemented with a circuit.

<Aggregation of monitoring data>
FIG. 4 is a flowchart showing the operation of the monitoring device 2. FIG. 11 is a diagram illustrating functional blocks of the monitoring device 2.
First, in step S01, the control unit 21 periodically determines whether or not the monitoring data has been received. If the monitoring data has been received (step S01: YES), the processing of the control unit 21 proceeds to step S02. If the monitoring data is not received (step S01: NO), the process of the control unit 21 returns to step S01.

  Next, in step S02, the control unit 21 totals the monitoring data. Specifically, the control unit 21 adds up the number of passes, the number of detections, and the detection ratio. The number of passages is the number of times a person has passed through the gate 3, and when monitoring data is received, 1 is added to the passage number counter. The number of times of detection is the number of times document take-out has been detected, and 1 is added to the counter of the number of detections when “document take-out presence / absence” of the monitoring data is “present”. The detection ratio is a value that expresses the ratio of the number of detections with respect to the number of passages as a percentage. The control unit 21 aggregates the monitoring data, for example, on a daily basis. That is, each time monitoring data is received, the totaling result of the monitoring data received after midnight of the day is updated. If the date changes, the totaling result of the previous day is stored in the storage unit 22 in association with the date. And reset the counter of the number of passes and the number of detections to zero.

  Next, in step S <b> 03, the control unit 21 updates the screen representing the counting result and outputs it to the display unit 24. At this time, the totaling results of all the gates 3 may be displayed. However, the gate 3 that should be strengthened for monitoring (hereinafter referred to as a monitoring strengthening gate) is selected and the totaling results of the gates 3 are displayed. However, it is desirable from the viewpoint of monitoring efficiency. The selection of the monitoring enhancement gates may be performed by any procedure. For example, the maximum number of detections and detection ratios of each gate 3 are ranked, and several gates 3 are selected from the top of the ranking, and the total result May be displayed. Alternatively, all the gates 3 may be rearranged according to the rank. Or the total result of all the gates 3 may be displayed, and the gate 3 which displays a total result may be selected by a user's judgment. If the count result is displayed, the process of the control unit 21 returns to step S01.

  FIG. 5 is a diagram illustrating the displayed count results. In this example, the gates 3A and 3B are selected as the monitoring enhancement gates, and the line graphs of the tabulated results for the two most recent weeks are displayed at these two locations. The number of detections (3A) shows the maximum value on Friday in both the first week and the second week. The number of detections (3B) shows the maximum value on Wednesday in both the first week and the second week. The detection ratio (3A) shows the maximum value on Friday in both the first week and the second week. The detection ratio (3B) shows the maximum value on Wednesday in both the first week and the second week. From these results, for example, for the gate 3A, Friday is a candidate for a day of the week on which monitoring should be strengthened (hereinafter referred to as “monitoring strengthening day of week”). The user may determine the monitoring strengthened day of the week by looking at the displayed graph, or the monitoring device may extract and display the maximum value of the total result. Further, the monitoring device 2 may periodically transmit data including the determination result as an attachment to an e-mail to a designated transmission destination.

  Further, based on the change rate of the detection ratio, it may be determined that the monitoring day of the week is strengthened. The change rate of the detection ratio is the ratio of the detection ratio on the second day to the detection ratio on the first day of two adjacent days. On the graph, the rate of change is indicated by the slope of the broken line. In the example of the detection ratio (3B), since the change rate of the detection ratio is the maximum on Friday of the first week, Friday is a candidate for the monitoring enhanced day of the week. In addition, you may determine the monitoring reinforcement | strength day based on the change rate of the frequency | count of detection.

  That is, the control unit 21 is an example of a counting unit 201 that counts the number of detections at which each of the plurality of gates 3 has taken out articles or a numerical value based on the number of detections for each gate for each predetermined period. Further, the control unit 21 is an example of the output unit 202 that outputs the aggregation result by changing the output form based on the aggregation result for each gate by the aggregation unit 201.

FIG. 6 is a diagram illustrating another example of the tabulation result. In this example, the detection ratio of each gate and the maximum value of the change rate are ranked for each day of the week, and the top three locations of each day are highlighted. In the figure, the detection ratio is expressed as an information leakage rate.
FIG. 7 is a diagram illustrating another example of the tabulation result. This example is a table of numerical data on which the graph of FIG. 5 is based.
FIG. 8 is a diagram illustrating another example of the tabulation result. In this example, the value obtained by adding the numerical data in FIG. 7 for each day of the week is displayed in a line graph.

<Adjustment of detection sensitivity>
Next, adjustment of the detection sensitivity of the detection device 5 will be described. If the monitoring enhancement gate is selected as described above, the monitoring device 2 instructs the control device 8 of the monitoring enhancement gate to adjust the detection sensitivity. The detection sensitivity is adjusted by adjusting an excitation current supplied to the excitation coil 51 and adjusting a threshold value of a correlation coefficient used by the detection circuit 54 to determine whether to take out a confidential document.
That is, the control unit 21 is an example of the adjusting unit 203 that adjusts the detection sensitivity of the detection device that detects the taking-out of the article at the gate selected based on the counting result.

FIG. 9 is a diagram showing the setting contents of the excitation current and the threshold value. The illustrated excitation current values and threshold values are merely examples, and may be set to other values. The normal setting is a setting for the gate 3 that is not the monitoring enhancement gate. In the normal setting, the correlation coefficient threshold is 90%, and the excitation current value is 1A. The monitoring enhancement settings 1 to 3 are settings for the monitoring enhancement gate, and increase the excitation current value to 1.5 A in order to improve the detection sensitivity of the monitoring enhancement gate. Further, in the monitoring enhancement settings 1 to 3, the correlation coefficient threshold values are set to 90%, 9 5 %, and 9 2 %, respectively. Increasing the correlation coefficient threshold directly lowers the detection sensitivity, but which threshold is set is determined in consideration of the balance between non-detection and false detection. Non-detection means that a confidential document has been taken out but no take-out is detected. Misdetection means that a confidential document is not taken out but is taken out.

  The determination of non-detection and erroneous detection is performed as follows, for example. As described above, since a sheet that is not a magnetic material is prohibited from being brought into the permitted area by regulations, when a document is taken out from the permitted area, the document is a confidential document. The control unit 21 determines whether or not the confidential document is taken out by analyzing the photographed image, and compares the determination result with the detection result of the detection device 5. When the determination result from the image is taken out and the detection result of the detection device 5 is not taken out, the control unit 21 determines that the detection is not performed. When the determination result from the image is not taken out and the detection result of the detection device 5 is taken out, the control unit 21 determines that the detection is erroneous.

(1) Monitoring enhancement setting 1
The monitoring enhancement setting 1 increases the excitation current value as compared with the normal setting, but increases the detection space for detecting the confidential document by not changing the threshold value of the correlation coefficient (90%). According to this setting, non-detection is reduced compared to the normal setting, but false detection increases. Therefore, this setting is suitable when priority is given to reduction of non-detection.

(2) Monitoring enhancement setting 2
Intensified surveillance set 2, compared with normal setting, with increasing excitation current, by increasing the threshold value of the correlation coefficient (90% → 9 5%) , and usually set equal to the sensing space to detect the confidential document To do. According to this setting, non-detection is equivalent to the normal setting, but false detection is reduced. Therefore, this setting is suitable when priority is given to reducing false detection.

(3) Monitoring enhancement setting 3
Monitoring reinforcing set 3, as compared with the normal setting, with increasing excitation current, by lower gel than intensified surveillance set 2 the threshold value of the correlation coefficient (9 5% → 9 2% ), it detects the confidential document The detection space to be increased is set to be larger than the monitoring enhancement setting 2. According to this setting, both non-detection and false detection are reduced compared to the normal setting. However, the effect of reducing non-detection is lower than that of the monitoring enhancement setting 1, and the effect of reducing false detection is lower than that of the monitoring enhancement setting 2. Therefore, this setting is an intermediate setting between the monitoring enhancement setting 1 and the monitoring enhancement setting 2, and is suitable when it is desired to reduce both non-detection and false detection.

FIG. 10 is a flowchart showing a procedure for adjusting the detection sensitivity.
First, in step S11, the control unit 21 selects a monitoring enhancement gate.
Next, in step S12, the control unit 21 performs the monitoring enhancement setting 3.
Next, in step S13, the control unit 21 performs monitoring for a predetermined period in the procedure shown in FIG. The predetermined period is a period such as tens of minutes, hours, or days.
Next, in step S14, the control unit 21 determines whether or not the number of false detections in a predetermined period has reached a threshold value. When the number of false detections reaches the threshold (step S14: YES), the process of the control unit 21 proceeds to step S15, and when the number of false detections does not reach the threshold (step S14: NO), control is performed. The process of the unit 21 proceeds to step S16.
Next, in step S15, the control unit 21 performs the monitoring enhancement setting 2 and returns to the process of step S13.

On the other hand, in step S <b> 16, the control unit 21 determines whether or not the number of non-detections in a predetermined period has reached a threshold value. This threshold value may be different from or equal to the determination threshold value in step S14. When the number of times of non-detection has reached the threshold value (step S16: YES), the process of the control unit 21 proceeds to step S17, and when the number of times of non-detection has not reached the threshold value (step S16: NO), control is performed. The process of the unit 21 returns to step S12.
Next, in step S17, the control unit 21 performs the monitoring enhancement setting 1, and returns to the process of step S13.

<Modification>
The embodiment may be modified as follows. A plurality of modified examples may be combined.
<1>
Instead of the paper with magnetic material, a paper in which an RFID tag or the like is embedded may be used. In that case, a tag reader / writer is provided in the gate 3 as the detection device 5. To adjust the detection sensitivity, the intensity of the radio wave emitted by the tag reader / writer is adjusted.
Instead of the magnetic wire, a sheet in which a thin film-like magnetic material or the like is inserted may be used.
The human sensor 6 may be a device that detects passage of a person using ultrasonic waves or light.
The gate 3 may be provided with an alarm device or a door opening / closing device, and when a confidential document is taken out, an operation such as issuing an alarm or closing the door may be performed.

<2>
In the above-described embodiment, an example in which monitoring data is aggregated in units of one day has been described. However, aggregation may be performed for each time zone. The time for updating the counting result may be, for example, a predetermined time on a day of the week determined every week or a time determined every day.

<3>
The determination of non-detection and erroneous detection may be performed by the user visually determining whether or not to carry out from the image and comparing the determination result with the detection result of the detection device.
Moreover, you may determine non-detection with the following structures. For example, it is assumed that the rule stipulates that taking out confidential documents is permitted by applying in advance. An RFID tag is attached to an ID card carried by a person who enters and exits the permission area, and a tag reader / writer that reads an ID from the RFID tag is provided at the gate. Registered in the monitoring device 2 is the ID of a person who applied for taking out a confidential document in advance (hereinafter referred to as an applicant ID). When the tag reader / writer detects the applicant ID, but the take-out of the confidential document is not detected by the detection device 5, the monitoring device 2 determines that it is not detected.

  It is desirable to operate this ID card so that it is carried only when a confidential document is taken out. Further, the gate may be provided with an input means for the person carrying the ID card to input whether or not the confidential document is carried when passing through the gate. The input means may be a push button or a touch panel. By providing such an input means, it is prevented that a person carrying an ID card is determined not to be detected when passing a gate without carrying a confidential document. When inputting the presence / absence of carrying a confidential document by the input means, the person carrying the ID card may sequentially input the presence / absence of carrying the confidential document when passing through the gate. Alternatively, confidentiality is detected only when either the applicant ID is detected but no confidential document is taken out, or when the applicant ID is detected and the confidential document is also taken out. Whether or not the document is carried may be input. According to this configuration, compared to a configuration in which the presence / absence of carrying a confidential document is sequentially input, the burden on the operation of the person carrying the ID card is reduced.

<4>
The detection sensitivity may be adjusted as follows. The excitation current and threshold are set normally (see Fig. 9), and monitoring is performed only for a set period. When the number of non-detections reaches the threshold, the excitation current is increased and the number of false detections reaches the threshold. In this case, the threshold value of the degree of coincidence (correlation coefficient) may be increased. The threshold value for the number of non-detections and the threshold value for the number of false detections may be different values or the same value. In short, the excitation current may be increased when the number of times the article has been actually taken out is greater than the number of detections, and the coincidence threshold may be increased when the number of times the article has been actually taken out is less than the number of detections. .

<5>
In the embodiment, the example in which the control unit 21 of the monitoring device 2 realizes the above function by executing the application program has been described. However, the above function may be implemented in the monitoring device 2 by a hardware circuit. Further, the program may be provided by being recorded on a computer-readable recording medium such as an optical recording medium or a semiconductor memory, and the program may be read from the recording medium and installed in the monitoring apparatus 2. In addition, this program may be provided through a telecommunication line.

DESCRIPTION OF SYMBOLS 1 ... Monitoring system, 2 ... Monitoring apparatus, 21 ... Control part, 22 ... Memory | storage part, 23 ... Communication part, 24 ... Display part, 25 ... Reception part, 3 ... Gate, 4 ... Communication line, 5 ... Detection apparatus, 51 ... excitation coil, 52 ... power supply, 53 ... antenna, 54 ... detection circuit, 6 ... human sensor, 7 ... photographing device, 8 ... control device

Claims (7)

A collecting unit that aggregates per gate for each period in each of the plurality of gate removal of articles has been determined the number of detection times sensed,
An output means for outputting information related to a gate for strengthening monitoring among the plurality of gates from a result of the counting by the counting means ;
The output means outputs instruction information for increasing the detection sensitivity of the gate for enhancing the monitoring.
Monitoring equipment. Before SL output means, the monitoring device according to claim 1, instead by outputting arranged in accordance with counting result for each of the gates of the number of the detection times. Before SL output section, based on the counting result, the monitoring device according to claim 1 for outputting the counting result of the gate to enhance the monitoring. Before Symbol instruction information, the exciting current supplied to the exciting coil which applies an oscillating magnetic field to the magnetic body provided in the article, and a pulse waveform in which the magnetic material occurs when the vibrating magnetic field to the magnetic body acts The monitoring apparatus according to claim 1 , wherein the monitoring device is an instruction to adjust at least one of a threshold value of the degree of coincidence when determining whether to take out the article based on a degree of coincidence with a waveform stored in advance. The monitoring apparatus according to claim 4 , wherein the instruction information is an instruction to increase the excitation current to a gate that strengthens the monitoring.   For each of the plurality of gates, an excitation current supplied to an excitation coil that applies an oscillating magnetic field to the magnetic body provided in the article and / or a pulse generated by the magnetic body when the oscillating magnetic field is applied to the magnetic body. A threshold value for determining the degree of coincidence when determining whether to bring out the article according to the degree of coincidence between a waveform and a pre-stored waveform, and a setting for reducing non-detection in which no takeout is detected even though the article has been taken out; The monitoring apparatus according to claim 1, further comprising an adjusting unit configured to adjust to any setting for reducing erroneous detection in which take-out is detected even though the article is not taken out. The computer,
A collecting unit that aggregates per gate for each period in each of the plurality of gate removal of articles has been determined the number of detection times sensed,
From the aggregation result of the tallying unit, a program to function as output means for outputting information about the gate to enhance the monitoring of the plurality of gates,
The output means outputs instruction information for increasing the detection sensitivity of the gate for enhancing the monitoring.
Program .