CN109991668A - A kind of multimedia equipment detection method, device and system - Google Patents

Abstract

Embodiments of the present invention provide a multimedia device detection method, device and system, wherein the method includes: acquiring magnetic field difference signals of several magnetic field detection units; the magnetic field detection unit is composed of two magnetic field detection sub-units with equal heights If in any magnetic field detection unit, the magnetic field difference signal of any magnetic field detection subunit is greater than or equal to the preset signal threshold, then based on the magnetic field difference signal of any magnetic field detection subunit in the magnetic field detection unit and another magnetic field The magnetic field difference signal of the subunit is detected, and the detection score is adjusted; the detection result is obtained based on the detection score. The method, device and system provided by the embodiments of the present invention can effectively distinguish multimedia equipment from metal-containing objects, significantly reduce false positives and false negatives when detecting multimedia equipment, effectively prevent personnel from carrying multimedia equipment into a classified environment, and reduce leakage of secret information risk.

Description

A kind of multimedia equipment detection method, device and system

technical field

Embodiments of the present invention relate to the technical field of information security protection, and in particular, to a method, apparatus and system for detecting multimedia equipment.

Background technique

With the widespread popularity of multimedia devices, multimedia devices with recording and shooting functions not only improve the convenience of people's lives, but also bring a certain risk of information leakage. In secret places, carrying or using multimedia devices such as mobile phones, voice recorders, cameras, etc., will cause the leakage of secret information in the place. In order to effectively reduce the information leakage caused by multimedia equipment in the secret place, it is necessary to detect the multimedia equipment outside the secret place, and physically isolate the multimedia device from entering the secret place.

The current methods for restricting personnel to carry multimedia equipment into secret-related places for multimedia equipment detection mainly include manual inspection, or detection through metal detectors or metal security gates. Among them, manual inspection is time-consuming and labor-intensive, the detection efficiency is low, and the problem of missed inspection emerges one after another. When testing through metal detectors or metal security gates, because the inspected personnel often wear decorative accessories containing metal such as keys, belts and metal buttons, it is easy to cause false alarms and affect the detection efficiency.

Therefore, how to effectively distinguish multimedia equipment from metal-containing items, reduce the occurrence of missed detections and false alarms, and improve detection efficiency is still an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a method, apparatus and system for detecting multimedia equipment, which are used to solve the problems of easy missed detection and false positives and low detection efficiency in the existing multimedia equipment detection method.

In a first aspect, an embodiment of the present invention provides a method for detecting a multimedia device, including:

acquiring magnetic field difference signals of several magnetic field detection units; the magnetic field detection units are composed of two magnetic field detection sub-units with equal heights;

If in any of the magnetic field detection units, the magnetic field difference signal of any magnetic field detection sub-unit is greater than or equal to the preset signal threshold, then based on the magnetic field difference of any of the magnetic field detection sub-units in the any magnetic field detection unit The value signal and the magnetic field difference signal of another said magnetic field detection subunit, adjust the detection score;

A detection result is obtained based on the detection score.

In a second aspect, an embodiment of the present invention provides a multimedia device detection device, including: an acquisition module for acquiring magnetic field difference signals of several magnetic field detection units; the magnetic field detection units are detected by two magnetic fields with equal heights. Subunit composition;

The scoring module is used for, if in any of the magnetic field detection units, the magnetic field difference signal of any magnetic field detection sub-unit is greater than or equal to a preset signal threshold, then based on the magnetic field detection in any of the magnetic field detection units The magnetic field difference signal of the subunit and the magnetic field difference signal of another said magnetic field detection subunit, to adjust the detection score;

A judgment module, configured to obtain a detection result based on the detection score.

In a third aspect, an embodiment of the present invention provides a multimedia equipment detection system, including several magnetic field detection units, and the multimedia equipment detection apparatus provided in the second aspect.

In a fourth aspect, an embodiment of the present invention provides an electronic device, including a processor, a communication interface, a memory, and a bus, wherein the processor, the communication interface, and the memory communicate with each other through the bus, and the processor can call logic in the memory instructions to perform the steps of the method provided by the first aspect.

In a fifth aspect, an embodiment of the present invention provides a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of the method provided in the first aspect.

In a multimedia device detection method, device and system provided by the embodiments of the present invention, the detection score is adjusted by the magnetic field difference signals of several magnetic field detection units, and then the detection result is obtained, which can effectively distinguish the multimedia device from the metal-containing object, and significantly Reduce false positives and false negatives when detecting multimedia equipment, effectively prevent personnel from bringing multimedia equipment into secret-related environments, and reduce the risk of secret information leakage.

Description of drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

1 is a schematic flowchart of a method for detecting a multimedia device provided by an embodiment of the present invention;

2 is a schematic diagram of a magnetic field difference signal obtained by a magnetic field detection unit according to an embodiment of the present invention detecting a multimedia device;

3 is a schematic diagram of a magnetic field difference signal obtained by detecting a metal-containing object by a magnetic field detection unit provided in an embodiment of the present invention;

4 is a schematic structural diagram of an apparatus for detecting a multimedia device provided by an embodiment of the present invention;

5 is a schematic structural diagram of a multimedia device detection system provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of an electronic device provided by an embodiment of the present invention.

Description of reference numbers:

510-detection door frame body; 511-door frame; 520-magnetic field detection sub-unit;

530 - Multimedia equipment detection device.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Aiming at the problems that the existing multimedia equipment detection method is time-consuming and labor-intensive, the detection efficiency is low, the problem of missed detection is endless, or the multimedia equipment cannot be effectively distinguished from the metal-containing objects, which is likely to cause false alarms and affect the detection efficiency. A multimedia device detection method. FIG. 1 is a schematic flowchart of a method for detecting a multimedia device provided by an embodiment of the present invention. As shown in FIG. 1 , the method includes:

110. Acquire magnetic field difference signals of a plurality of magnetic field detection units; the magnetic field detection unit is composed of two magnetic field detection sub-units set at the same height.

Specifically, each magnetic field detection unit is composed of two magnetic field detection subunits, and each magnetic field detection subunit is used to detect the magnetic field difference signal of the subject under test. Here, the subject under test may be a person, or a possibility Bags that store multimedia equipment, etc. Since the heights of the two magnetic field detection subunits in any magnetic field detection unit are set at the same height, the magnetic field difference signals measured by the two magnetic field detection subunits can be used to characterize the magnetic field characteristics at different positions corresponding to the heights. The magnetic field difference signal of the detection subunit constitutes the magnetic field difference signal of the magnetic field detection unit. Here, the magnetic field difference signals detected by several magnetic field detection units are acquired, that is, several magnetic field difference signals of different heights are acquired. The embodiment of the present invention does not specifically limit the number and installation positions of the magnetic field detection units.

It should be noted that the magnetic field difference signal detected by the magnetic field detection subunit is obtained based on the magnetic field signal detected by the magnetic field detection subunit. The signal is the difference between the maximum value and the minimum value of the magnetic field signal.

120. If in any magnetic field detection unit, the magnetic field difference signal of any magnetic field detection subunit is greater than or equal to a preset signal threshold, then based on the magnetic field difference signal of the magnetic field detection subunit in the magnetic field detection unit and another magnetic field The magnetic field difference signal of the subunit is detected, and the detection score is adjusted.

Specifically, after obtaining the magnetic field difference signals of several magnetic field detection units, for any magnetic field detection unit, if the magnetic field difference signal of at least one magnetic field detection subunit in the magnetic field detection unit is greater than or equal to the preset signal threshold, Then it is confirmed that the tested person may carry multimedia equipment or metal objects. Here, the preset signal threshold is a preset magnetic field difference signal, which is used to preliminarily distinguish whether the subject under test carries a multimedia device.

For any magnetic field detection unit, if there is a magnetic field detection sub-unit whose magnetic field difference signal is greater than or equal to the preset signal threshold in the magnetic field detection unit, then based on the magnetic field difference measured by the two magnetic field detection sub-units in the magnetic field detection unit respectively The value signal adjusts the detection score. Here, the detection score is used to characterize the tendency of the subject under test, which is obtained based on the magnetic field difference signal of each magnetic field detection unit, to possibly carry a multimedia device or a metal-containing object. The adjustment of the detection score may be based on the difference between the magnetic field difference signals of the two magnetic field detection subunits, and may also be based on the magnitude relationship between the magnetic field difference signals of the two magnetic field detection subunits and the preset signal strength as Accordingly, this embodiment of the present invention does not specifically limit this.

For example, the initial detection score is 0.5, which indicates that the probability that the subject under test carries a multimedia device is 50%. The magnetic field difference signals of the two magnetic field detection sub-units in unit A know that the subject under test may be carrying a multimedia device, then the detection score is increased by 10%, that is, the detection score is increased to 60%, and the corresponding subject under test carries The probability of metal-containing items dropped to 40%. On this basis, if there is also a magnetic field detection subunit whose magnetic field difference signal is greater than or equal to the preset signal threshold in the magnetic field detection unit B, based on the magnetic field difference signals of the two magnetic field detection subunits in the magnetic field detection unit B, the If the test subject may be carrying metal-containing objects, the detection score will be reduced by 10%, that is, the test score will be reduced to 50%, and the probability of the corresponding test subject carrying metal-containing objects will be increased to 50%. Determine whether there is a magnetic field detection subunit whose magnetic field difference signal is greater than or equal to a preset signal threshold in each magnetic field detection unit, and then determine a magnetic field detection unit that can be used to adjust the detection score. Based on the magnetic field difference signals of two magnetic field detection subunits in the magnetic field detection subunits of each magnetic field detection subunit whose magnetic field difference signal is greater than or equal to the preset signal threshold, the detection scores are adjusted one by one until all the magnetic field difference values exist The magnetic field detection units of the magnetic field detection sub-units whose signals are greater than or equal to the preset signal threshold all participate in the adjustment of the detection score.

130. Obtain a detection result based on the detection score.

After the detection score is adjusted based on the magnetic field difference signal of the magnetic field detection unit of each magnetic field detection subunit whose magnetic field difference signal is greater than or equal to the preset signal threshold, the detection result is determined based on the finally determined detection score, and the detection result is Whether the measured subject carries the multimedia device, or the probability that the measured subject carries the multimedia device, may also include the carrying position where the measured subject may carry the multimedia device, which is not specifically limited in this embodiment of the present invention.

In the method provided by the embodiment of the present invention, the detection score is adjusted by the magnetic field difference signals of several magnetic field detection units, and the detection result is obtained, which can effectively distinguish the multimedia device from the metal-containing object, and significantly reduce the false alarm and the detection of the multimedia device. False negatives can effectively prevent personnel from bringing multimedia equipment into the classified environment and reduce the risk of secret information leakage.

Based on any of the above-mentioned embodiments, FIG. 2 is a schematic diagram of a magnetic field difference signal obtained by a magnetic field detection unit provided by an embodiment of the present invention detecting a multimedia device, and FIG. 3 is a magnetic field detection unit provided by an embodiment of the present invention detecting a metal-containing object Schematic diagrams of the obtained magnetic field difference signals, as shown in Figures 2 and 3, the figures include three groups of magnetic field detection units with different heights, that is, the first magnetic field detection unit includes magnetic field detection subunits 1a and 1b, and the second magnetic field detection unit includes Magnetic field detection subunits 2a and 2b, and the third magnetic field detection unit includes magnetic field detection subunits 3a and 3b. One side of each magnetic field detection subunit displays the magnetic field signal of the magnetic field detection subunit, and the magnetic field difference signal of the magnetic field detection subunit can be obtained from the magnetic field signal of the magnetic field detection subunit. It can be seen from Fig. 2 that when the subject under test carries a multimedia device, the magnetic field difference signals of the two magnetic field detection subunits in each magnetic field detection unit are almost equal, and the two magnetic field detection subunits corresponding to the carrying position of the multimedia device (Fig. 2) The magnetic field difference signals of 2a and 2b) are the strongest. As can be seen from Figure 3, when the subject to be tested carries a metal-containing object, since the distance between the metal-containing object and the two magnetic field detection subunits in any magnetic field detection unit is different, the two magnetic field detection subunits in each magnetic field detection unit The difference between the magnetic field difference signals is larger, and the closer it is to the metal-containing object, the larger the magnetic field difference signal of the magnetic field detection subunit. Comparing Fig. 2 and Fig. 3, it can be seen that when the subject under test carries a multimedia device, the difference between the magnetic field difference signals of the two magnetic field detection subunits in each magnetic field detection unit is small, and the magnetic field difference of each magnetic field detection subunit is small. The value signals are all greater than the magnetic field difference signal when the subject under test carries a metal-containing object.

Based on the above embodiment, referring to FIG. 2 and FIG. 3 , step 120 specifically includes:

121. If in any magnetic field detection unit, the magnetic field difference signal of any magnetic field detection subunit is greater than or equal to a preset signal threshold, then based on the magnetic field difference signal of the magnetic field detection subunit in the magnetic field detection unit and another magnetic field The magnetic field difference signal of the subunit is detected, and the difference between the magnetic field difference signals of the magnetic field detection unit is obtained.

Specifically, for any magnetic field detection unit, if there is a magnetic field detection sub-unit whose magnetic field difference signal is greater than or equal to a preset signal threshold in the magnetic field detection unit, then based on the two magnetic field detection sub-units in the magnetic field detection unit, the The magnetic field difference signal is calculated, and the difference between the magnetic field difference signals of the magnetic field detection unit is calculated. Here, the difference between the magnetic field difference signals is the difference between the magnetic field difference signals respectively measured by the two magnetic field signal subunits.

122. Adjust the detection score based on the difference between the magnetic field difference signals and a preset difference threshold.

Here, the preset difference threshold is a preset threshold of the difference between the magnetic field difference signals, and the preset difference threshold is used to determine whether the subject under test is carrying a multimedia device based on the magnetic field difference signal of the magnetic field detection unit. 2 and 3, it can be seen that if the difference between the magnetic field difference signals is greater than or equal to the preset difference threshold, that is, the difference between the magnetic field difference signals of the two magnetic field detection sub-units is relatively large, and the detected main body carries a metal-containing object. The possibility is greater; if the difference between the magnetic field difference signals is less than the preset difference threshold, that is, the difference between the magnetic field difference signals of the two magnetic field detection subunits is small, and the subject being tested is more likely to carry a multimedia device. The detection score is adjusted according to the magnitude relationship between the difference between the magnetic field difference signals and the preset difference threshold.

Based on any of the above embodiments, step 110 further includes: if the magnetic field difference signal of each magnetic field detection subunit in each magnetic field detection unit is smaller than the preset signal threshold, determining that the detection result is that there is no multimedia device.

Specifically, after acquiring the magnetic field difference signal of each magnetic field detection unit, if the magnetic field difference signal of the magnetic field detection subunit in any magnetic field detection unit is greater than the preset signal threshold, the detection score is adjusted. If the magnetic field difference signal of each magnetic field detection sub-unit in each magnetic field detection unit is smaller than the preset signal threshold, that is, the magnetic field difference signal of each magnetic field detection unit does not meet the conditions for adjusting the detection score, then directly Confirm that the subject under test does not carry a multimedia device, and set the detection result as no multimedia device.

Based on any of the foregoing embodiments, step 130 specifically includes: if the detection score is within a preset score range, determining that the detection result is that a multimedia device exists; otherwise, determining that the detection result is that there is no multimedia device.

Specifically, after the detection score is determined, the detection result is determined based on the detection score and the preset score interval. Here, the preset score interval is the interval in which the preset detection result is the presence of the detection score of the multimedia device. If the detection score is within the preset score interval, it is confirmed that the subject under test carries the multimedia device.

Based on any of the above embodiments, step 130 further includes: if the detection result is that there is a multimedia device, selecting the magnetic field detection unit with the highest magnetic field difference signal, and determining the carrying position of the multimedia device based on the height of the installation position of the magnetic field detection unit.

Specifically, after it is determined that the subject under test carries the multimedia device, from all the acquired magnetic field detection units, select the magnetic field detection unit with the highest magnetic field difference signal, that is, select the magnetic field detection unit closest to the height of the multimedia device. Immediately obtain the height of the set position of the magnetic field detection unit with the highest magnetic field difference signal, and use the height of the set position as the determination condition for the carrying position of the multimedia device, thereby narrowing the positioning range of the multimedia device, enabling the staff to locate the multimedia device faster and more accurately. .

Based on any of the above embodiments, FIG. 4 is a schematic structural diagram of a multimedia device detection apparatus provided by an embodiment of the present invention. As shown in FIG. 4 , the apparatus includes an acquisition module 410, a scoring module 420, and a judgment module 430;

Wherein, the acquisition module 410 is used for acquiring magnetic field difference signals of several magnetic field detection units; the magnetic field detection units are composed of two magnetic field detection sub-units with equal heights;

The scoring module 420 is configured to, if in any of the magnetic field detection units, the magnetic field difference signal of any magnetic field detection sub-unit is greater than or equal to a preset signal threshold, then based on the magnetic field detection in any of the magnetic field detection units The magnetic field difference signal of the subunit and the magnetic field difference signal of another said magnetic field detection subunit, to adjust the detection score;

The judging module 430 is configured to obtain a detection result based on the detection score.

The device provided by the embodiment of the present invention adjusts the detection score by using the magnetic field difference signals of several magnetic field detection units, and then obtains the detection result, which can effectively distinguish the multimedia device from the metal-containing object, and significantly reduce the false alarm and the detection of the multimedia device. False negatives can effectively prevent personnel from bringing multimedia equipment into the classified environment and reduce the risk of secret information leakage.

Based on any of the above embodiments, the scoring module 420 is specifically used for:

If in any of the magnetic field detection units, the magnetic field difference signal of any magnetic field detection sub-unit is greater than or equal to the preset signal threshold, then based on the magnetic field difference of any of the magnetic field detection sub-units in the any magnetic field detection unit the value signal and the magnetic field difference signal of another magnetic field detection subunit, and obtain the difference between the magnetic field difference signals of any one of the magnetic field detection units;

The detection score is adjusted based on the difference between the magnetic field difference signals and a preset difference threshold.

Based on any of the above embodiments, the device further includes a judgment module;

The determination module is configured to determine that the detection result is that there is no multimedia device if the magnetic field difference signal of each of the magnetic field detection sub-units in each of the magnetic field detection units is smaller than the preset signal threshold.

Based on any of the above embodiments, the judgment module 430 is specifically used for:

If the detection score is in a preset score range, then determine that the detection result is that there is a multimedia device;

Otherwise, it is determined that the detection result is that there is no multimedia device.

Based on any of the above embodiments, the device further includes a positioning module;

The positioning module is configured to select the magnetic field detection unit with the highest magnetic field difference signal if the detection result is that there is a multimedia device, and determine the carrying position of the multimedia device based on the height of the installation position of the magnetic field detection unit.

Based on any of the foregoing embodiments, a multimedia device detection system includes a plurality of magnetic field detection units, and the multimedia device detection apparatus provided by any of the foregoing embodiments. The magnetic field detection unit is used to detect the magnetic field difference signal around the subject under test, and transmit the detected magnetic field difference signal to the multimedia equipment detection device. After receiving the magnetic field difference signals sent by the plurality of magnetic field detection units, the multimedia equipment detection device generates a detection result based on the magnetic field difference signals, and determines whether the subject under test carries the multimedia equipment.

In the system provided by the embodiment of the present invention, the detection score is adjusted by the magnetic field difference signals of several magnetic field detection units, and the detection result is obtained, which can effectively distinguish the multimedia device from the metal-containing object, and significantly reduce the false alarm and the detection of the multimedia device. False negatives can effectively prevent personnel from bringing multimedia equipment into the classified environment and reduce the risk of secret information leakage.

Based on any of the above embodiments, FIG. 5 is a schematic structural diagram of a multimedia device detection system provided by an embodiment of the present invention. As shown in FIG. 5 , it further includes a detection door frame body; in any magnetic field detection unit, any magnetic field detection subunit is set On any door frame of the detection door frame, another magnetic field detection subunit is arranged on the other door frame of the detection door frame at the same height as the magnetic field detection subunit.

Specifically, the detection door frame is used to arrange the magnetic field detection unit. The detection door frame is composed of two door frames and a beam on the door frame. The magnetic field detection unit includes two magnetic field detection subunits, which are respectively arranged on the two door frames of the detection door frame, and the two magnetic field detection subunits are arranged at the same height on the door frames.

Based on any of the above embodiments, referring to FIG. 5 , the multimedia equipment detection system includes a detection door frame 510 , five magnetic field detection units, and a multimedia equipment detection device 530 .

The detection door frame 510 is composed of two door frames 511 and a beam on the door frame 511 , the size of the door frame 511 is 20cm*10cm*210cm, and the size of the beam is 85cm*20cm*10cm. Each magnetic field detection unit includes two magnetic field detection subunits 520 , which are respectively arranged on the two door frames 511 of the detection door frame body 510 , and the two magnetic field detection subunits 520 are arranged at the same height on the door frames 511 . Here, the magnetic field detection sub-unit 520 is a magnetic field acquisition sensor, which is used to detect the change of the magnetic field strength of the surrounding environment, collect the magnetic field data of the surrounding environment by using the Hall effect, and convert the magnetic field strength into a digital form after collection, and transmit it to the data acquisition card . The working sensitivity of the magnetic field acquisition sensor is 30μV/nT, the resolution is 1nT, and the working temperature is -20℃～100℃. The data acquisition card is used to control the sampling rate and acquisition method of the data acquired by the magnetic field acquisition sensor, and transmit the data, that is, the magnetic field difference signal, to the multimedia device detection device 530 . The data acquisition card can perform data sampling at more than 500,000 points per second, and supports parallel and serial acquisition methods.

When a subject to be tested passes through the detection door frame 510, the 5 groups of magnetic field detection units, that is, the 10 magnetic field detection sub-units 520 disposed on the door frame 511 respectively collect the magnetic field difference signals when the subject to be tested passes through, and pass the data acquisition card It is transmitted to the multimedia device detection device 530 .

After obtaining the magnetic field difference signals of the five groups of magnetic field detection units, the multimedia device detection device 530 first sets the detection score to 0. Then, the multimedia detection device determines whether each group of magnetic field detection units includes a magnetic field detection subunit 520 whose magnetic field difference signal is greater than or equal to a preset signal threshold. For any group of magnetic field detection units, if there is a magnetic field detection sub-unit 520 whose magnetic field difference signal is greater than or equal to a preset signal threshold in the magnetic field detection unit, then the magnetic field difference between the two magnetic field detection sub-units 520 in the magnetic field detection unit value signal, and calculate the difference between the magnetic field difference signals of the magnetic field detection unit. If the difference between the magnetic field difference signals is greater than the preset difference threshold, the detection score is increased by 1, and if the difference between the magnetic field difference signals is smaller than the preset difference threshold, the detection score is decreased by 1. The final detection score is obtained after the detection score is adjusted based on the difference between the magnetic field difference signals of the magnetic field detection units of the magnetic field detection subunit 520 whose magnetic field difference signal is greater than or equal to the preset signal threshold.

If the final detection score is less than 1, it is determined that the detection result is that a multimedia device exists; if the final detection score is greater than or equal to 1, it is determined that the detection result is that there is no multimedia device.

After the judgment is completed, if the detection result is that there is a multimedia device, the multimedia device detection device 530 controls the sound and light alarm device to give an alarm, otherwise the multimedia device detection device 530 continues to wait to receive the magnetic field difference signal of the next passing subject.

In the system provided by the embodiment of the present invention, the detection score is adjusted by the magnetic field difference signals of several magnetic field detection units, and the detection result is obtained, which can effectively distinguish the multimedia device from the metal-containing object, and significantly reduce the false alarm and the detection of the multimedia device. False negatives can effectively prevent personnel from bringing multimedia equipment into the classified environment and reduce the risk of secret information leakage.

FIG. 6 is a schematic diagram of an entity structure of an electronic device provided by an embodiment of the present invention. As shown in FIG. 6 , the electronic device may include: a processor (processor) 601, a communications interface (Communications Interface) 602, a memory (memory) 603, and a communication The bus 604, wherein the processor 601, the communication interface 602, and the memory 603 complete the communication with each other through the communication bus 604. The processor 601 can call a computer program stored in the memory 603 and can run on the processor 601 to execute the multimedia device detection method provided by the above embodiments, for example, including: acquiring magnetic field difference signals of several magnetic field detection units; The magnetic field detection unit is composed of two magnetic field detection sub-units with equal heights; if in any of the magnetic field detection units, the magnetic field difference signal of any magnetic field detection sub-unit is greater than or equal to a preset signal threshold, the A magnetic field difference signal of one of the magnetic field detection sub-units in any of the magnetic field detection units and a magnetic field difference signal of the other magnetic field detection sub-unit to adjust a detection score; and a detection result is obtained based on the detection score.

In addition, the above-mentioned logic instructions in the memory 603 may be implemented in the form of software functional units and may be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solutions of the embodiments of the present invention are essentially, or the parts that make contributions to the prior art or the parts of the technical solutions can be embodied in the form of software products, and the computer software products are stored in a storage medium , including several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of the present invention. The aforementioned storage medium includes: U disk, removable hard disk, Read-Only Memory (ROM, Read-Only Memory), Random Access Memory (RAM, Random Access Memory), magnetic disk or optical disk and other media that can store program codes .

Embodiments of the present invention further provide a non-transitory computer-readable storage medium on which a computer program is stored, and when the computer program is executed by a processor, is implemented to execute the multimedia device detection method provided by the above embodiments, for example, including: obtaining The magnetic field difference signal of several magnetic field detection units; the magnetic field detection unit is composed of two magnetic field detection subunits with equal heights; if any of the magnetic field detection units, the magnetic field difference of any magnetic field detection subunit If the signal is greater than or equal to the preset signal threshold, the detection score is adjusted based on the magnetic field difference signal of any magnetic field detection subunit in any magnetic field detection unit and the magnetic field difference signal of another magnetic field detection subunit ; Obtain a detection result based on the detection score.

The device embodiments described above are only illustrative, wherein the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in One place, or it can be distributed over multiple network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution in this embodiment. Those of ordinary skill in the art can understand and implement it without creative effort.

From the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus a necessary general hardware platform, and certainly can also be implemented by hardware. Based on this understanding, the above-mentioned technical solutions can be embodied in the form of software products in essence or the parts that make contributions to the prior art, and the computer software products can be stored in computer-readable storage media, such as ROM/RAM, magnetic A disc, an optical disc, etc., includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform the methods described in various embodiments or some parts of the embodiments.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that it can still be The technical solutions described in the foregoing embodiments are modified, or some technical features thereof are equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. a kind of multimedia equipment detection method characterized by comprising

Obtain the magnetic field difference signal of several magnetic field detection units；The magnetic field detection unit is contour by two setting positions Magnetic field detection subelement is constituted；

If in any magnetic field detection unit, the magnetic field difference signal of any magnetic field detection subelement is more than or equal to default Signal threshold value, then magnetic field difference signal based on any magnetic field detection subelement in any magnetic field detection unit with The magnetic field difference signal of another magnetic field detection subelement, adjustment detection score；

Testing result is obtained based on the detection score.

If 2. the method according to claim 1, wherein in any magnetic field detection unit, Ren Yisuo The magnetic field difference signal for stating magnetic field detection subelement is more than or equal to preset signals threshold value, then is based on any magnetic field detection unit In any magnetic field detection subelement magnetic field difference signal and another magnetic field detection subelement magnetic field difference believe Number, adjustment detection score specifically includes:

If in any magnetic field detection unit, the magnetic field difference signal of any magnetic field detection subelement is more than or equal to default Signal threshold value, then magnetic field difference signal based on any magnetic field detection subelement in any magnetic field detection unit with The magnetic field difference signal of another magnetic field detection subelement, obtain any magnetic field detection unit magnetic field difference signal it Difference；

Difference and preset difference value threshold value based on the magnetic field difference signal, adjust the detection score.

3. the method according to claim 1, wherein the magnetic field difference for obtaining several magnetic field detection units Signal, later further include:

If the magnetic field difference signal of each magnetic field detection subelement in each magnetic field detection unit is respectively less than described Preset signals threshold value, it is determined that the testing result is that there is no multimedia equipments.

4. the method according to claim 1, wherein described obtain testing result, tool based on the detection score Body includes:

If the detection score is in default score section, it is determined that the testing result is that there are multimedia equipments；

Otherwise, it determines the testing result is that there is no multimedia equipments.

5. according to claim 1 to any method in 4, which is characterized in that described to obtain inspection based on the detection score It surveys as a result, later further include:

If the testing result is that there are multimedia equipments, the highest magnetic field detection list of the magnetic field difference signal is chosen Member determines the carrying position of multimedia equipment based on the height of the setting position of the magnetic field detection unit.

6. a kind of multimedia equipment detection device characterized by comprising

Module is obtained, for obtaining the magnetic field difference signal of several magnetic field detection units；The magnetic field detection unit is by two The contour magnetic field detection subelement in position is arranged to constitute；

Sub-module is obtained, if the magnetic field difference signal of any magnetic field detection subelement is big in any magnetic field detection unit In the magnetic field equal to preset signals threshold value, then based on any magnetic field detection subelement in any magnetic field detection unit The magnetic field difference signal of difference signal and another magnetic field detection subelement, adjustment detection score；

Judgment module, for obtaining testing result based on the detection score.

7. a kind of multimedia equipment detection system, which is characterized in that including several magnetic field detection units, and such as claim Multimedia equipment detection device described in 6.

8. system according to claim 7, which is characterized in that further include detection door body；

In any magnetic field detection unit, any doorframe of the detection door body is arranged in any magnetic field detection subelement On, another magnetic field detection subelement is arranged on another doorframe of the detection door body and any magnetic field detection Unit equal-height position.

9. a kind of electronic equipment, which is characterized in that including processor, communication interface, memory and bus, wherein processor leads to Believe that interface, memory complete mutual communication by bus, processor can call the logical order in memory, to execute Method as claimed in claim 1 to 5.

10. a kind of non-transient computer readable storage medium, is stored thereon with computer program, which is characterized in that the computer Method as claimed in claim 1 to 5 is realized when program is executed by processor.