Signal processing device and security check system

Abstract

The utility model provides a signal processing device and a security inspection system, which can be applied to the technical field of security inspection. The signal processing device comprises a first screen splitter used for transmitting an article perspective image signal about a target article from an image acquisition device; the first signal processor obtains a detection result about the safety of the target article according to the article perspective image signal, and outputs an article detection image signal corresponding to the detection result; the first input end of the switcher is connected to the second output end of the first screen splitter, the second input end of the switcher is connected to the output end of the first signal processor, and under the condition that the switcher receives a switching instruction, one of a transmitted article perspective image signal and an article detection image signal is transmitted to the first signal processor through the switcher; and switching the article perspective image signal to the other one of the article perspective image signal and the article detection image signal, so that a display electrically connected with the switcher displays an image corresponding to the other one of the article perspective image signal and the article detection image signal.

Description

Technical Field

[0001] The utility model relates to the technical field of safety detection, in particular to a signal processing device and a safety inspection system. Background Art

[0002] In industries such as rail transit, railways and logistics, security inspections are usually performed using only old versions of security inspection systems including X-ray machines and monitors. For new versions of security inspection systems, when the images displayed on the monitors are changed, the security inspection systems need to be reinstalled and debugged to redeploy the security inspection systems.

[0003] Based on this, when upgrading the old version of the security inspection system, more resources are consumed. In addition, when the technicians change the image displayed on the display screen, they need to reinstall and debug the security inspection system and add accessories, which will change the connection line of the security inspection system, thus consuming more resources. In addition, due to the large number of added accessories, the failure rate of the security inspection system will increase. Utility Model Content

[0004] In view of the above problems, the utility model provides a signal processing device and a security inspection system.

[0005] The signal processing device provided by the utility model includes: a first screen splitter, which is used to transmit an object perspective image signal about a target object from an image acquisition device; a first signal processor, the input end of the first signal processor is connected to the first output end of the first screen splitter, and the first signal processor is used to obtain a detection result about the safety of the target object according to the object perspective image signal, and output an object detection image signal corresponding to the detection result; a switcher, the first input end of the switcher is connected to the second output end of the first screen splitter, and the second input end of the switcher is connected to the output end of the first signal processor, and the switcher is used to switch one of the transmitted object perspective image signal and the object detection image signal to the other of the object perspective image signal and the object detection image signal when receiving a switching instruction, so that a display electrically connected to the switcher displays an image corresponding to the other signal.

[0006] According to an embodiment of the utility model, there are N first screen splitters, and the nth first screen splitter is used to transmit the nth object perspective image signal among N object perspective image signals, and the N object perspective image signals each come from a different N first signal transmission interface, N is a positive integer greater than 1, and n is a positive integer greater than or equal to 1 and less than or equal to N; the above-mentioned signal processing device also includes a second signal processor; the nth input end of the N input ends of the second signal processor is electrically connected to the output end of the nth first screen splitter, and the second signal processor is used to send, from the N object perspective image signals, an object perspective image signal from a first target interface among the N first signal transmission interfaces to the first signal processor.

[0007] According to an embodiment of the utility model, there are N switches and N displays; the first signal processor is further used to output N object detection image signals through N output terminals of the first signal processor, wherein the N object detection image signals correspond one-to-one to the interface types of the N first signal transmission interfaces; wherein the second input terminal of the nth switch is electrically connected to the nth output terminal of the first signal processor; wherein the input terminal of the nth display is electrically connected to the output terminal of the nth switch, and the nth display is used to display the nth object detection image signal and an image corresponding to the object detection image signal corresponding to the nth switch.

[0008] According to an embodiment of the utility model, the nth switch is also used to switch one of the transmitted nth object perspective image signal and the nth object detection image signal to the other of the nth object perspective image signal and the nth object detection image signal when a switching instruction is received.

[0009] According to an embodiment of the utility model, the input end of the nth display is electrically connected to the output end of the nth switch through a second signal transmission interface; wherein the second signal transmission interface is one of a video graphics array interface, a high-definition multimedia interface and a digital video interface.

[0010] According to an embodiment of the utility model, the second signal processor is also used to change from outputting the object perspective image signal from the first target interface to sending the object perspective image signal from the second target interface when receiving a control signal corresponding to the second target transmission interface.

[0011] According to an embodiment of the utility model, the switch includes a first switch and a second switch, and the display includes a first display electrically connected to the first switch and a second display electrically connected to the second switch; wherein the first display is used to display an image corresponding to one of the object perspective image signal and the object detection image signal; wherein the second display is used to display an image corresponding to the other of the object perspective image signal and the object detection image signal.

[0012] According to an embodiment of the utility model, the image acquisition device is used to acquire a perspective image of a target object by using penetrating rays, and output an nth object perspective image signal corresponding to the perspective image to the nth first screen splitter through the nth first signal transmission interface.

[0013] According to an embodiment of the present utility model, the first signal transmission interface is one of a video graphics array interface, a high-definition multimedia interface and a digital video interface.

[0014] According to an embodiment of the utility model, the above-mentioned signal processing device also includes a second screen splitter and a third display not connected to the switch; wherein, the input end of the second screen splitter is connected to the output end of the first signal processor, the first output end of the second screen splitter is connected to the switch, and the second output end of the second screen splitter is connected to the third display; wherein, the third display is used to display an image corresponding to the object detection image signal.

[0015] The security inspection system provided by the utility model includes an image acquisition device, a display and any one of the signal processing devices as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above contents and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 Schematic diagrams of security inspection systems according to some exemplary embodiments of the present utility model are schematically shown;

[0018] Figure 2 A schematic diagram schematically shows a signal processing device according to some exemplary embodiments of the utility model;

[0019] Figure 3 A schematic diagram schematically shows a signal processing device according to some exemplary embodiments of the utility model;

[0020] Figure 4 A schematic diagram schematically shows a signal processing device according to some exemplary embodiments of the utility model;

[0021] Figure 5Schematic diagrams of security inspection systems according to some exemplary embodiments of the present utility model are schematically shown;

[0022] Figure 6 A schematic diagram schematically illustrates a security inspection system according to some exemplary embodiments of the present invention; and

[0023] Figure 7 A schematic diagram of a security inspection system according to some exemplary embodiments of the present utility model is schematically shown. DETAILED DESCRIPTION

[0024] Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be understood that these descriptions are exemplary only and are not intended to limit the scope of the present invention. In the following detailed description, for ease of explanation, many specific details are described to provide a comprehensive understanding of the embodiments of the present invention. However, it is obvious that one or more embodiments may also be implemented without these specific details. In addition, in the following description, descriptions of known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0025] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "include", "comprises", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0026] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0027] When using expressions such as "at least one of A, B, and C, etc.", they should generally be interpreted according to the meaning of the expression commonly understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but is not limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.).

[0028] In the technical solution of the utility model, the information (including but not limited to image information of the objects, etc.) and data (including but not limited to data used for analysis, stored data, displayed data, etc.) of the objects involved are all information and data that are authorized or fully authorized by all parties, and the collection, storage, use, processing, transmission, provision, utility model and application of the relevant data comply with the relevant laws, regulations and standards of the relevant countries and regions, take necessary confidentiality measures, do not violate public order and good morals, and provide corresponding operation entrances for choosing to authorize or refuse.

[0029] According to the embodiments of the present invention, in industries such as rail transit, railways, and logistics, there are still old versions of security inspection systems that do not have AI (Artificial Intelligence) detection functions. The old versions of security inspection systems may only include an X-ray machine and a display. Based on this, when the old version of the security inspection system is transformed into a security inspection system with a detection function, more resources need to be consumed.

[0030] In addition, for different scenarios, there are different image display requirements for the security inspection system. The different display requirements may include the requirement to display the perspective image of the object from the X-ray machine through a single display, the requirement to display the object detection image through a single display, and the requirement to display the perspective image of the object and the object detection image through two displays respectively. Among them, the perspective image of the object may be collected by an X-ray machine. The perspective image of the object may include an image of the packaging of the object and an image of the object collected through the packaging. The object detection image may be an image obtained by detecting the image of the object in the perspective image of the object by a security inspection system with AI detection function. The object detection image may include the detection results of the above-mentioned object.

[0031] Based on this, in order to switch the image displayed on the display according to different requirements, the security inspection system needs to be reinstalled and debugged, and the lines of the security inspection system need to be changed.

[0032] Based on this, when the technicians change the image displayed on the display screen, they need to reinstall and debug the security inspection system and add accessories, which will change the connection lines of the security inspection system, thus consuming a lot of resources. In addition, due to the large number of added accessories, the equipment failure rate will increase.

[0033] In view of this, the utility model provides a signal processing device, which can freely switch the image displayed on the display, and can quickly transform the old version of the security inspection system into a security inspection system with a detection function according to the needs of different security inspection application scenarios such as rail transit, railway and logistics industries, thereby reducing the resources required for transforming the security inspection system. In addition, since the transformed security inspection system has an intelligent detection function, the security inspection accuracy and efficiency are improved.

[0034] Figure 1 A schematic diagram of a security inspection system according to some exemplary embodiments of the present utility model is schematically shown.

[0035] Figure 2 The following is a schematic diagram of a signal processing device according to some exemplary embodiments of the present invention.

[0036] like Figure 1 and Figure 2 As shown, the security inspection system of this embodiment may include an image acquisition device 110, a signal processing device 120 and a display 130. The image acquisition device 110 of this embodiment may include a ray tube 111, a detector 112 and a host 113. The signal processing device 120 of this embodiment may include a first screen splitter 122, a first signal processor 121 and a switch 123.

[0037] The image acquisition device 110 is used to acquire a perspective image of the target object by using penetrating rays. For example, the image acquisition device 110 may include an X-ray security inspection machine. The penetrating rays may include X-rays, etc.

[0038] For example, the ray tube 111 may emit penetrating rays to irradiate the target object. Further, the detector 111 may collect and obtain an object perspective image signal of the package 141 and the content 142 of the target object according to the penetrating rays penetrating the target object. The detector 112 may also be used to transmit the object perspective image signal to the host 113, and then the host 113 transmits the object perspective image signal to the signal processing device 120. The first screen splitter 122 is used to transmit the object perspective image signal of the target object from the image acquisition device 110.

[0039] The target item may include a package and the contents packed by the package. For example, the target item may include a suitcase and the items in the suitcase, or a backpack and the items in the backpack, etc.

[0040] The object perspective image signal may include information of a packaging image and a content image of the target object.

[0041] The first signal processor 121 may be a signal processor with an AI detection function. For example, a neural network may be deployed in the first signal processor 121, and the object perspective image is detected by the neural network to determine the detection result about the safety of the target object.

[0042] An input end of the first signal processor 121 is connected to a first output end of the first screen splitter 122 to receive the object perspective image signal from the first screen splitter 122. The first signal processor 121 is used to obtain a detection result on the safety of the target object according to the object perspective image signal, and output an object detection image signal corresponding to the detection result.

[0043] The detection results may include detection results indicating the safety of the target item and detection results indicating the risk of the target item. The item detection images may include safe item detection images corresponding to the detection results indicating the safety of the target item and risky item detection images corresponding to the detection results indicating the risk of the target item.

[0044] The security object detection image may include a security mark for marking the target object and a confidence level of the category to which the target object belongs. The security mark may include identification information of the target object. The identification information may include the category of the target object, etc. For example, the category of the target object may include bottles, clothes, knives, etc.

[0045] The risk item detection image may include a risk mark for marking the target item and the confidence level of the category to which the target item belongs. The risk mark may include identification information and risk warning of the target item. The risk warning may be used to indicate that the target item has risks.

[0046] The object detection image signal corresponding to the detection result may include the information of the above-mentioned safe object detection image or risky object detection image.

[0047] The first input end of the switch 123 is connected to the second output end of the first screen splitter 122 to receive the object perspective image signal from the first screen splitter 122. The second input end of the switch 123 is connected to the output end of the first signal processor 121 to receive the object detection image signal from the first signal processor 121. The switch 123 is used to switch one of the transmitted object perspective image signal and the object detection image signal to the other of the object perspective image signal and the object detection image signal when receiving a switching instruction, so that the display 130 electrically connected to the switch 123 displays an image corresponding to the other signal. For example, the switch 123 may include a KVM (Keyboard, Video, Mouse) switch, etc. The user may operate the interactive interface of the client to send a switching instruction to the switch 123 through the client, or the switch 123 may switch the output signal through other methods such as a dial switch, which is not limited in the present invention.

[0048] For example, the display 130 may be configured to display an image corresponding to one of the object perspective image signal and the object detection image signal.

[0049] For example, the switch 123 includes a first switch and a second switch. The display 130 includes a first display electrically connected to the first switch and a second display electrically connected to the second switch. The first display is used to display an image corresponding to one of the article perspective image signal and the article detection image signal. The second display is used to display an image corresponding to the other of the article perspective image signal and the article detection image signal.

[0050] Based on this, by using the signal processing device 120 of the present invention, the accessories required for upgrading the security inspection system can be reduced. In addition, the signal processing device 120 of the present invention can flexibly switch the object perspective image or the object detection image displayed by the display 130 without adding accessories or changing the line connection, thereby reducing the resources consumed by changing the image displayed by the display 130.

[0051] Based on this, by using the signal processing device 120 of the present invention, the complexity of deploying accessories and cables of the security inspection system can be reduced, thereby reducing the consumed hardware resources and reducing the failure rate of the security inspection system.

[0052] Figure 3 The following is a schematic diagram of a signal processing device according to some exemplary embodiments of the present invention.

[0053] like Figure 3 As shown, the signal processing device 220 of this embodiment may further include a second screen splitter 124 and a third display 150 that is not connected to the switch 123. The input end of the second screen splitter 124 is connected to the output end of the first signal processor 121, the first output end of the second screen splitter 124 is connected to the switch 123, and the second output end of the second screen splitter 124 is connected to the third display 150.

[0054] The third display 150 is used to display an image corresponding to the object detection image signal.

[0055] For example, the switch 123 may transmit the object perspective image signal from the first screen splitter 122 to the third display 150. When the switch 123 receives a switching instruction, the signal output by the switch 123 may be switched from the object perspective image signal to the object detection image signal transmitted by the second screen splitter 124. Then, the third display 150 may display an image corresponding to the object detection image signal.

[0056] Based on this, Figure 3The signal processing device in the present invention can freely switch between the perspective image of the object or the detection image of the object displayed on a single display screen without adding new accessories or modifying the circuit. Therefore, the use of the signal processing device of the present invention can improve the efficiency of installing and debugging the security inspection system, and can reduce the resources consumed by installing and debugging the security inspection equipment.

[0057] Furthermore, the third display 150 can display an image different from the display 130 electrically connected to the switch 123. Therefore, there is no need to add more accessories such as split screens or KVM switches, which avoids the problem of difficult installation and maintenance due to complex accessory circuits, and can improve the efficiency of installation and debugging of the security inspection system.

[0058] Figure 4 The following is a schematic diagram of a signal processing device according to some exemplary embodiments of the present invention.

[0059] like Figure 4 As shown, there may be N first screen splitters 122. There may be N switches. There may be N first signal transmission interfaces 124. There may be N second signal transmission interfaces 126. There may be N displays 130. The signal processing device of this embodiment includes N first screen splitters 122_1...122_N, a first signal processor 121, N switches 123_1...123_N, N first signal transmission interfaces 124_1...124_N, a second signal processor 125, and second signal transmission interfaces 126_1...126_N.

[0060] The image acquisition device 110 is used to acquire a perspective image of a target object by using penetrating rays.

[0061] The image acquisition device 110 is also used to output an object perspective image signal corresponding to the perspective image to the first screen splitter 122 through the first signal transmission interface 124. For example, the image acquisition device 110 is also used to output an nth object perspective image signal corresponding to the perspective image to the nth first screen splitter 122_n through the nth first signal transmission interface 124_n, where N is a positive integer greater than 1, and n is a positive integer greater than or equal to 1 and less than or equal to N. It should be noted that, in some embodiments, the image acquisition device 110 can be connected to n first signal transmission interfaces 124_1...124_n among the N first signal transmission interfaces 124_1...124_N, and can transmit n object perspective image signals to the n first screen splitters 122_1...122_n through the n first signal transmission interfaces 124_1...124_n. The n object perspective image signals each come from a different n first signal transmission interface 124_1...124_n.

[0062] For example, the n first screen splitters 122_1 ... 122_n are used to transmit n object perspective image signals among the n object perspective image signals. The n object perspective image signals are respectively from different n first signal transmission interfaces 124_1 ... 124_n.

[0063] The n-th first screen splitter 122_n is used to transmit the n-th object perspective image signal among the N object perspective image signals. The N object perspective image signals are respectively from different N first signal transmission interfaces 124_1 . . . 124_N.

[0064] For example, the n input terminals of the second signal processor 125 are electrically connected to the output terminals of the n first screen splitters 122_1 . . . 122_n to receive n object perspective image signals.

[0065] The second signal processor 125 is used to send, from among the n object perspective image signals, an object perspective image signal from a first target interface among the n first signal transmission interfaces 124_1 . . . 124_n to the first signal processor 121 .

[0066] For example, the nth input terminal among the N input terminals of the second signal processor 125 is electrically connected to the output terminal of the nth first screen splitter 122_n to receive N object perspective image signals.

[0067] The second signal processor 125 is used to send, from the N object perspective image signals, an object perspective image signal from a first target interface among the N first signal transmission interfaces 124_1 . . . 124_N to the first signal processor 121 .

[0068] The second signal processor 125 is also used to change from outputting the object perspective image signal from the first target interface to sending the object perspective image signal from the second target interface when receiving the control signal corresponding to the second target transmission interface. For example, the user can select from the signals transmitted by the N first signal transmission interfaces through the interactive interface of the client. In addition, in response to the user's selection operation on the interactive interface, the first signal transmission interface corresponding to the selection operation can be determined as the second target transmission interface, and then the control signal corresponding to the second target interface can be sent to the second signal processor through the client.

[0069] For example, the first signal processor 121 is further configured to output an n-th object detection image signal through an n-th output terminal of the first signal processor 121 .

[0070] For example, the first signal processor 121 is further configured to output n object detection image signals through n output terminals of the first signal processor 121. The n object detection image signals correspond one-to-one to the interface types of the n first signal transmission interfaces 124_1 . . . 124_n.

[0071] For example, the first signal processor 121 is further configured to output N object detection image signals through N output terminals of the first signal processor 121. The N object detection image signals correspond one-to-one to the interface types of the N first signal transmission interfaces 124_1 . . . 124_N.

[0072] For example, the second input terminals of the n switches 123_1 . . . 123_n are electrically connected to the nth output terminal of the first signal processor 121. The n switches 123_1 . . . 123_n may be used to transmit the n object detection image signals outputted from the n output terminals of the first signal processor 121.

[0073] The second input terminal of the nth switch 123_n is electrically connected to the nth output terminal of the first signal processor 121. The nth switch 123_n can be used to transmit the nth object detection image signal output from the nth output terminal of the first signal processor 121.

[0074] For example, the input ends of the n displays 130_1 ... 130_n are electrically connected to the output ends of the n switches 123_1 ... 123_n. For example, the input ends of the n displays 130_1 ... 130_n are electrically connected to the output ends of the n switches 123_1 ... 123_n through n second signal transmission interfaces 126_1 ... 126_n. The second signal transmission interface 126_1 ... 126_N can be one of a video graphics array interface, a high-definition multimedia interface, and a digital video interface.

[0075] The n displays 130_1 ... 130_n are used to display the n object detection image signals and an image corresponding to one of the object detection image signals corresponding to the n switches 123_1 ... 123_n.

[0076] The n displays 130_1 ... 130_n are used to display the n object detection images and an image corresponding to one of the object detection images corresponding to the n switches 123_1 ... 123_n.

[0077] For example, the input end of the nth display 130_n is electrically connected to the output end of the nth switch 123_n. For example, the input end of the nth display 130_n is electrically connected to the output end of the nth switch 123_n through the second signal transmission interface. For example, the input end of the nth display 130_n is electrically connected to the output end of the nth switch 123_n through the nth second signal transmission interface 126_n.

[0078] The nth display 130_n is used to display an image corresponding to the nth object detection image signal and the object detection image signal corresponding to the nth switch 123_n. For example, the nth display 130_n is used to display an image of the nth object detection image and the object detection image corresponding to the nth switch 123_n.

[0079] For example, the n switches 123_1...123_n are also used to switch one of the transmitted n object perspective image signals and n object detection image signals to another signal of the n object perspective image signals and n object detection image signals upon receiving a switching instruction.

[0080] The n displays 130_1 ... 130_n are also used to display the n object detection image signals and an image corresponding to another one of the object detection image signals of the n switches 123_1 ... 123_n. For example, the n displays 130_1 ... 130_n are also used to display the n object detection images and another one of the object detection images of the n switches 123_1 ... 123_n.

[0081] For example, the nth switch 123_n is also used to switch one of the transmitted nth object perspective image signal and the nth object detection image signal to the other of the nth object perspective image signal and the nth object detection image signal when receiving a switching instruction.

[0082] The nth display 130_n is also used to display the image corresponding to the other of the nth object detection image signal and the object detection image signal corresponding to the nth switch 123_n. For example, the nth display 130_n is also used to display the other of the nth object detection image and the object detection image corresponding to the nth switch 123_n.

[0083] In order to better understand the signal processing device of the embodiment of the utility model, the following Figure 5 to Figure 7 To illustrate the security inspection system in other embodiments of the present invention.

[0084] Figure 5A schematic diagram of a security inspection system according to some exemplary embodiments of the present utility model is schematically shown.

[0085] like Figure 5 As shown, the security inspection system that may include an AI detection function in this embodiment may only include an image acquisition device 110 and a display 130.

[0086] In industries such as rail transit, railway and subway security inspection, the security inspection system can be upgraded and reconstructed by adding equipment such as the first signal processor 121. Figure 6 The security inspection system in the embodiment of the present invention.

[0087] Figure 6 A schematic diagram of a security inspection system according to some exemplary embodiments of the present utility model is schematically shown.

[0088] like Figure 6 As shown, the security inspection system of this embodiment may include an image acquisition device 110, a first signal processor 121 and a display 130. After the image acquisition device 110 acquires the object perspective image of the object, the object perspective image may be transmitted to the first signal processor 121 by video access. The first signal processor 121 may obtain the detection result based on the object perspective image. The first signal processor 121 transmits the object detection image signal including the detection result to the display 130, so that the display 130 displays the object detection image. Based on this, Figure 6 The display 130 can only display the object detection image including the detection result.

[0089] Figure 7 A schematic diagram of a security inspection system according to some exemplary embodiments of the present utility model is schematically shown.

[0090] like Figure 7 As shown, the security inspection system of this embodiment may include an image acquisition device 110, a first signal processor 121, a first screen splitter 122, and a display 150_1 and a display 150_2 that are not connected to the switch 123. The image signal of the image acquisition device 110 may be sent to the first screen splitter 122, and then the first screen splitter 122 sends the image signal to the first signal processor 121 and the display 150_1 respectively. The first signal processor 121 may obtain a detection result based on the perspective image of the object. The first signal processor 121 may transmit the object detection image signal including the detection result to the display 150_2, so that the display 150_2 displays the object detection image.

[0091] Thus, the display 150_1 can display the article perspective image corresponding to the article perspective image signal, and the display 150_2 can display the article detection image corresponding to the article detection image signal.

[0092] Based on this, only the display 150_1 and the display 150_2 can be used to display the object perspective image and the object detection image respectively.

[0093] By electrically connecting the input end of the signal processing device of the embodiment of the utility model to the image acquisition device, and electrically connecting the output end of the signal processing device of the embodiment of the utility model to the display, the image acquisition device can be realized. Figure 5 Rapid upgrade of the security inspection system in the embodiment.

[0094] Furthermore, by using the signal processing device of the present invention, the accessories required for upgrading the security inspection system can be reduced. Moreover, the signal processing device of the present invention can flexibly switch the object perspective image or the object detection image displayed by the display 130 without adding accessories or changing the line connection, thereby reducing the resources consumed by changing the image displayed by the display 130.

[0095] Based on this, by using the signal processing device of the present invention, the complexity of deploying accessories and cables of the security inspection system can be reduced, thereby reducing the consumed hardware resources and reducing the failure rate of the security inspection system.

[0096] The ordinal numbers used in the specification and claims, such as "first", "second", "third", etc., to modify the corresponding elements, do not themselves mean that the elements have any ordinal numbers, nor do they represent the order of one element and another element, or the order in the manufacturing method. The use of these ordinal numbers is only used to clearly distinguish a component with a certain name from another component with the same name.

[0097] The algorithms and displays provided herein are not inherently related to any particular computer, virtual system, or other device. Various general purpose systems may also be used together with the teachings based thereon. Based on the above description, it is apparent that the structure required for constructing such systems is not intended for any particular programming language. In addition, the present invention is not intended for any particular programming language. It should be understood that various programming languages ​​may be utilized to implement the present invention described herein, and the description of the particular language above is intended to disclose the best mode of implementation of the present invention.

[0098] Those skilled in the art will appreciate that the modules in the devices in the embodiments may be adaptively changed and set in one or more devices different from the embodiments. The modules or units or components in the embodiments may be combined into one module or unit or component, and in addition they may be divided into multiple submodules or subunits or subcomponents. All features of the utility model in this specification (including the accompanying claims, abstracts and drawings) and all processes or units of any method or device of such utility model may be combined in any combination, except that at least some of such features and / or processes or units are mutually exclusive. Unless otherwise expressly stated, each feature of the utility model in this specification (including the accompanying claims, abstracts and drawings) may be replaced by an alternative feature that provides the same, equivalent or similar purpose. Furthermore, in a unit claim that lists several devices, several of these devices may be embodied by the same hardware item.

[0099] The specific embodiments described above further illustrate the purpose, technical solutions and beneficial effects of the present invention. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A signal processing device, comprising: A first screen splitter, used for transmitting an object perspective image signal of a target object from an image acquisition device; a first signal processor, wherein an input end of the first signal processor is connected to a first output end of the first screen splitter, and the first signal processor is used to obtain a detection result on the safety of the target object according to the object perspective image signal, and output an object detection image signal corresponding to the detection result; A switch, wherein a first input end of the switch is connected to a second output end of the first screen splitter, and a second input end of the switch is connected to an output end of the first signal processor. The switch is used to switch one of the transmitted object perspective image signal and the object detection image signal to the other of the object perspective image signal and the object detection image signal when receiving a switching instruction, so that a display electrically connected to the switch displays an image corresponding to the other signal.

2. The device according to claim 1, wherein: There are N first screen splitters, and the nth first screen splitter is used to transmit the nth object perspective image signal among the N object perspective image signals, and the N object perspective image signals are respectively from different N first signal transmission interfaces, N is a positive integer greater than 1, and n is a positive integer greater than or equal to 1 and less than or equal to N; The apparatus further comprises a second signal processor; The nth input end of the N input ends of the second signal processor is electrically connected to the nth output end of the first screen splitter, and the second signal processor is used to send an object perspective image signal from a first target interface among the N first signal transmission interfaces to the first signal processor from among the N object perspective image signals.

3. The device according to claim 2, wherein: There are N switches and N displays; The first signal processor is further configured to output N object detection image signals through N output terminals of the first signal processor, wherein the N object detection image signals correspond one-to-one to interface types of the N first signal transmission interfaces; wherein the second input terminal of the nth switch is electrically connected to the nth output terminal of the first signal processor; Among them, the input end of the nth display is electrically connected to the output end of the nth switch, and the nth display is used to display an image corresponding to the nth object detection image signal and the object detection image signal corresponding to the nth switch.

4. The device according to claim 3, wherein: The nth switch is also used to switch one of the transmitted nth object perspective image signal and the nth object detection image signal to the other of the nth object perspective image signal and the nth object detection image signal when receiving the switching instruction.

5. The device according to claim 3, wherein: The input end of the nth display is electrically connected to the output end of the nth switch through a second signal transmission interface; The second signal transmission interface is one of a video graphics array interface, a high-definition multimedia interface and a digital video interface.

6. The device according to claim 2, wherein: The second signal processor is also used to change from outputting the object perspective image signal from the first target interface to sending the object perspective image signal from the second target interface when receiving a control signal corresponding to the second target transmission interface.

7. The device according to claim 2, wherein: The image acquisition device is used to acquire the perspective image of the target object by using penetrating rays, and output the nth perspective image signal of the object corresponding to the perspective image to the nth first screen splitter through the nth first signal transmission interface.

8. The device according to claim 2, wherein: The first signal transmission interface is one of a video graphics array interface, a high-definition multimedia interface and a digital video interface.

9. The device according to claim 1, wherein: The switch includes a first switch and a second switch, and the display includes a first display electrically connected to the first switch and a second display electrically connected to the second switch; Wherein, the first display is used to display an image corresponding to one of the object perspective image signal and the object detection image signal; The second display is used to display an image corresponding to the other of the object perspective image signal and the object detection image signal.

10. The device according to claim 1, further comprising a second screen splitter and a third display not connected to the switch; in, The input end of the second screen splitter is connected to the output end of the first signal processor, the first output end of the second screen splitter is connected to the switcher, and the second output end of the second screen splitter is connected to the third display; Wherein, the third display is used to display an image corresponding to the object detection image signal.

11. A security inspection system, comprising an image acquisition device, a display, and a signal processing device as claimed in any one of claims 1 to 10.

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