TW201947458A - System of recognizing identity of objects and method of automatically recognizing identity of objects - Google Patents

Abstract

A system of recognizing identity of objects and method of automatically recognizing identity of objects are provided. The method is to shoot a monitor region for obtaining a monitor image, scan the monitor region for retrieving each identity data of each wireless badge, determines each image position of each object image in the monitor region, determine each badge position of each wireless badge in the monitor region, and link the object image and the wireless badge together if their positions are matched with each other.

Description

Object identity recognition system and method for automatically identifying object identity

The invention relates to a system and a method, in particular to an object identity recognition system and a method for automatically identifying the identity of an object.

Existing surveillance systems only have the ability to photograph the surveillance area, and do not have the ability to identify identities. Instead, they must rely on manual judgment of the monitoring screen to determine whether an unknown person enters the surveillance area, which will consume a lot of manpower.

At present, there is another surveillance system with personnel detection capabilities, which can detect whether a person has entered the surveillance area based on image recognition or infrared sensing. However, the aforementioned surveillance system also cannot automatically identify the identity of persons entering the surveillance area.

In addition, a monitoring system based on data fusion technology is currently proposed. In the aforementioned monitoring system, the administrator must manually match the identity data of each person and the facial image in advance to establish a matching relationship. After the pairing is completed, the aforementioned surveillance system may confirm the identity of the captured face image according to the established pairing relationship to determine whether the person entering the surveillance area is legal. However, the aforementioned monitoring system must spend a lot of time and manpower to perform data pairing in advance.

The invention provides an object identity recognition system based on data fusion and a method for automatically identifying the identity of an object, which can instantly pair the object with the wireless identity card based on the position of the object and the wireless identity card.

In an embodiment, a method for automatically identifying the identity of an object includes: capturing a monitoring area through an image capturing device to obtain a monitoring image, and identifying at least one object image in the monitoring image; scanning the monitoring area through a scanning device to obtain wireless identification Determine the identity of the image of the object in the surveillance area; determine the identity of the wireless identification card in the surveillance area; and determine whether the location of the image matches the identity of the identification card.

In one embodiment, an object identity recognition system includes an image capture device, a scanning device, and a control device. The image capture device is used to capture a surveillance area to obtain a surveillance image. The scanning device is used to scan the surveillance area to obtain the identity information of the wireless identification card. The control device is electrically connected to the image capturing device and the scanning device, and includes an image recognition module, an image positioning module, an identification card positioning module and a comparison module. The image recognition module is used for identifying at least one object image in the surveillance image. The image positioning module is used to determine the image position of the object image in the surveillance area. The identification card positioning module is used to determine the identification card position of the wireless identification card in the surveillance area. The comparison module is used to determine whether the position of the image matches the position of the identification card.

The present invention can instantly match object images and identity data, and can be used to judge objects with unknown identities in real time, and effectively save time and manpower required for manually matching object images and identity data.

The technical solution of the present invention is described in detail below with reference to the drawings and specific embodiments to better understand the object, scheme and effect of the present invention, but it is not intended to limit the scope of patent application of the present invention.

The invention discloses an object identity recognition system (hereinafter referred to as an identification system) 10 based on data fusion technology. The identification system 10 is used to execute a method for automatically identifying an object identity (hereinafter referred to as an identification method). The invention can obtain the image position of each object and the identification position of the wireless identification card carried by each object after multiple objects enter the surveillance area, and the identity of the object image of each object and the identification of the wireless identification card are based on the image position and identification card position The data is paired, whereby the present invention can automatically identify the identity of each object entering the surveillance area, and can further store the pairing result instead of manual pairing.

It is worth mentioning that each wireless identification card of the present invention can be a small electronic device carried by different objects, and the identity information of the objects is stored. The aforementioned identity information is unique and recognizable, and can be used to distinguish the identity of different objects. For example, if the object is an employee, the identity can be an employee number. If the object is a pet, the identity data may be the identification code of the implanted chip. In addition, the wireless identification card includes related components for transmitting and receiving wireless signals, and can perform wireless communication with external devices (such as the scanning device 12 described later).

Please refer to FIG. 1, which is a structural diagram of an object identification system according to a first aspect of the present invention. The identification system 10 of the present invention mainly includes an image capturing device 11, a scanning device 12, and a control device 13 electrically connected to the above devices.

The image capturing device 11 (such as a camera) is used to capture a surveillance image of a surveillance area. The scanning device 12 is used to sense identity data (such as name, employee number, identity code, chip number, property number, or other unique and identifiable information) stored in each wireless identification card that enters the surveillance area.

In one embodiment, after being enabled, the scanning device 12 can continuously broadcast a scanning signal to the monitoring area to sense all wireless identification cards in the monitoring area. Each wireless identification card located in the surveillance area can transmit identity data back and forth to the scanning device 12 in response to the aforementioned scanning signal.

In one embodiment, the scanning device 12 has a positioning function, and can be used to determine the position of each wireless identification card in the monitoring area.

For example, the scanning device 12 may include a directional antenna module, the directional antenna module includes a plurality of antennas, and the monitoring area is planned as a plurality of sub-areas. The scanning device 12 senses a plurality of sub-areas through a plurality of antennas, respectively. Thereby, the scanning device 12 can directly use the sub-area where the wireless identification card is sensed as the identification position of the wireless identification card.

In another example, the scanning device 12 may include more than three omnidirectional antenna modules, and each omnidirectional antenna module is respectively disposed at a different position in the monitoring area. The scanning device 12 can sense the same wireless identification card through each omnidirectional antenna module to receive a response signal from the wireless identification card. Then, the scanning device 12 can estimate each omnidirectional antenna mode according to the signal strength corresponding to each response signal (such as the signal strength of the response signal or the signal strength of the scanning signal received from each omnidirectional antenna module by the wireless identification card). The distance between the group and this wireless identification card, and the position of this wireless identification card in the surveillance area is calculated through three-point positioning based on the installation positions of three or more omnidirectional antenna modules and the calculated three or more distances. .

In one embodiment, the scanning device 12 may be an RFID reader, a Bluetooth transceiver, a ZigBee transceiver, an ultrasonic transceiver, or other wireless transceivers. A wireless identification card is an electronic device using the same wireless communication technology, such as an RFID tag, a beacon, a ZigBee transceiver, an ultrasonic transceiver, or other wireless transceivers.

The control device 13 is used to control the identification system 10. Specifically, the control device 13 can locate an object through image recognition technology, and locate a wireless identification card through radio frequency technology, and then pair the same location object with the wireless identification card to determine the identity of each object in the surveillance area. .

In an embodiment, the control device 13 connects the object image of the object with the identity data of the wireless identification card carried by the object to complete the pairing.

In an embodiment, the identification system 10 further includes a storage device 14 (such as a local storage or a remote storage host) electrically connected to the control device 13. The storage device 14 is used for storing data.

In one embodiment, the storage device 14 further stores a lookup table 140. The lookup table 140 records the correspondence between different locations (such as different sub-areas) of the surveillance area and the scanning data of the scanning device 12 (such as the scanning settings used when the wireless ID is sensed or the signal strength corresponding to the wireless ID). relationship.

In one embodiment, the storage device 14 further stores a database 141. The database 141 is used to record the linked object images and identity data.

In one embodiment, the storage device 14 includes a non-transitory storage medium and stores a computer program. Computer programs include computer executable code. When the control device 13 executes the aforementioned computer executable code, the identification method of the present invention can be implemented.

Please refer to FIG. 2 together, which is a detailed architecture diagram of the control device of the present invention. Specifically, the control device 13 mainly controls the recognition system 10 to execute various functions in the recognition method of the present invention by executing a computer program. Furthermore, the computer program includes multiple sets of codes, and the control device 13 can implement the following function modules by executing each set of codes:

1. Image recognition module 20: an object image for identifying an object in a surveillance image captured by the image capture device 11.

2. Image positioning module 21: used to determine the image position of the identified object image in the surveillance area.

3. Identification card positioning module 22: used to determine the location of the wireless identification card carried by the object in the surveillance area.

4. Comparison module 23: used to determine whether the determined image position is consistent with the determined identification card position (for example, the same or in the same sub-area).

5. Link module 24: used to link the object image and the identity data when the image position of the object image matches the position of the wireless identification card.

In an embodiment, the connection module 24 can also be used to store the linked object images and identity data in the database 141.

6. Unknown object detection module 25: It is used to determine the image of the object as an unknown object when the image position of any object image does not match the position of all wireless identification cards.

7. Image counting module 26: used to calculate the number of object images identified in the surveillance image.

8. Identification card counting module 27: used to scan the monitoring area to calculate the number of wireless identification cards in the monitoring area.

In an embodiment, the connection module 24 can directly connect the object image and identity data when the number of object images is 1 and the number of wireless identification cards is 1, without going through the image positioning module 21 and the identification card positioning module. 22 and the comparison module 23 determine whether the position of the image matches the position of the identification card.

In one embodiment, the monitoring area is planned as a plurality of sub-areas, and the image positioning module 21 is set to set the sub-area where the object image is located as the image position. In addition, the scanning device 12 senses multiple sub-areas of the surveillance area (e.g., only a part of the sub-area is sensed at a time) according to multiple scanning settings. Identity response signal. The identification card positioning module 22 is configured to set a sub-area sensed by the wireless identification card as the identification card position of the wireless identification card. The link module 24 is configured to link the object image and the identity data when the object image and the wireless identification card are located in the same sub-area.

In an embodiment, the scanning device 12 may receive multiple response signals of the same wireless identification card when sensing different sub-regions. (For example, when the scanning device 12 scans the adjacent sub-regions of the wireless identification card, an overflow may cause wireless communication. ID card returns unexpected response signal). Therefore, the present invention can set the identification card positioning module 22 to use only the position corresponding to the strongest signal response signal as the identification card position, thereby avoiding positioning errors and improving positioning accuracy.

In an embodiment, the scanning device 12 may first scan a plurality of sub-areas of the surveillance area to obtain a plurality of first response signals returned by all wireless identification cards in the surveillance area (the first response signal includes wireless identification Identity information of the ID card), and then perform a second scan on multiple sub-areas according to multiple scan settings and identity information of each wireless ID card to receive a second response signal from the wireless ID card and receive a second response signal Then record the signal strength corresponding to the second response signal (such as the signal strength of the scanning signal received by the wireless identification card during the second scan (the wireless identification card can record this signal strength in the second response signal), or the second response The signal strength of the signal) and / or the scan settings used when a second response signal is received. In addition, the identification card positioning module 22 is set to determine the location of each wireless identification card based on the signal strength corresponding to the lookup table 140 and each wireless identification card (or based on the scan settings corresponding to the lookup table 140 and each wireless identification card). The sub-area is used as the ID location.

In one embodiment, the scanning device 12 is usually in a sleep mode, a standby mode, or other low power consumption modes. After the image recognition module 20 recognizes the object image in the monitoring image, the scanning device 12 is triggered to enter the working mode to start scanning the monitoring area.

The invention can locate the object images of all objects in the surveillance area and the identity data of all wireless identification cards, and perform pairing according to the position relationship to determine whether there are unknown objects in the surveillance area.

Please refer to FIG. 3 together, which is a structural diagram of an object identification system according to a second aspect of the present invention. In this embodiment, the identification system 10 further includes a host 15.

Moreover, in this embodiment, the control device 13 includes a first control unit 111 provided in the image capture device 11, a second control unit 121 provided in the scanning device 12, and a third control unit 151 provided in the host 15. The storage device 14 includes a first storage unit 112 provided in the image capture device 11, a second storage unit 122 provided in the scanning device 12, and a third storage unit 152 provided in the host 15. In addition, the lookup table 140 and the database 141 can be stored in the third storage unit 152.

In other words, when the control device 13 executes a computer program, the image capturing device 11, the scanning device 12 and the host 15 can be controlled to interact to implement the identification method of the present invention.

In this embodiment, the image capturing device 11 includes a first transmission unit 110, a first storage unit 112, a photographing unit 113, and a first control unit 111 electrically connected to the above units. The photographing unit 113 (such as a combination of an image sensor and a lens) is used to photograph a surveillance area to generate a surveillance image.

The scanning device 12 includes a second transmission unit 120, a second storage unit 122, a scanning unit 123, and a second control unit 121 electrically connected to the above units.

The scanning unit 123 is configured to send a scanning signal to scan the infinite identification card in the surveillance area. In one embodiment, the scanning unit 123 includes a phase array antenna module 30 (Phase Array Antenna Module) and a beam steering module 31 (Beam Steering Control Module). The phased array antenna module 30 includes an antenna array, and can transmit a scanning beam or receive a signal (such as the aforementioned response signal) returned by the wireless identification card through the antenna array. The beam control module 31 is connected to the phase array antenna module 30, and can generate a scanning beam according to the identity data of different wireless identification cards (only wireless identification cards that match identity data will return a response signal in response to the scanning beam), and Different scanning settings control the phased array antenna module 30 to transmit scanning beams toward different scanning angles.

The host 15 includes a third transmission unit 150, a third storage unit 152, and a third control unit 151 electrically connected to the above units.

The first transmission unit 110, the second transmission unit 120, and the third transmission unit 150 may be the same or compatible data transmitters (such as Wi-Fi network cards, mobile network cards, Bluetooth transceivers, Zigbee transceivers, or other wireless data transmission Devices, or network cable connectors, USB connectors, or other wired data transmitters).

In an embodiment, the image capture device 11 is configured to transmit the captured surveillance image to the host 15, and the scanning device 12 is configured to transmit all the response signals (and scan settings) of the wireless identification card to the host 15. The host 15 recognizes the surveillance images to determine the image positions of all object images, and determines the identification card positions of all wireless identification cards according to the lookup table 140 and the response signals (and scan settings), and performs data linking.

In an embodiment, the image capturing device 11 is configured to identify the captured surveillance images to determine the positions of all object images, and transmit all the determined image positions and corresponding object images to the host 15 for scanning. The device 12 is configured to determine the ID positions of all wireless IDs based on the look-up table 140 (which can be stored in the second storage unit 122) and the response signal (and scan settings), and to determine all ID positions and wireless IDs determined The identity data corresponding to the ID card is transmitted to the host 15, and the host 15 performs data linking on the image of the object at the same location and the identity data.

Please refer to FIG. 4 together for a flowchart of a method for automatically identifying the identity of an object according to the first embodiment of the present invention. The identification method of each embodiment of the present invention may be implemented by the identification system 10 shown in FIG. 1, FIG. 2, or FIG. 3 (the identification system 10 shown in FIG. 1 and FIG. 2 will be described later). The identification method of this embodiment includes the following steps.

Step S10: The control device 13 (such as the first control unit 111) controls the image capturing device 11 to capture a surveillance area to obtain a surveillance image, and identifies an object image of each object entering the surveillance area in the surveillance image through the image recognition module 20.

Step S11: The control device 13 (such as the first control unit 111 or the third control unit 151) determines the image position of each object image in the monitoring area via the image positioning module 21.

In one embodiment, the image capturing device 11 captures the monitoring area at a fixed angle and a focal length, so that the range of the monitoring area displayed every time the monitoring image is captured is the same. In addition, the administrator can define surveillance images in advance (for example, different locations of the surveillance images are respectively mapped to different sub-areas of the actual surveillance area), and store the corresponding rules in the storage device 14 (such as the first storage unit 112 or Three storage units 152). Thereby, the control device 13 can determine the sub-region (ie, the image position) where the object is located according to the position of each object image in the surveillance image and the corresponding rule.

During the execution of steps S10-S11, the control device 13 (such as the second control unit 121 and the third control unit 151) may execute steps S12-S13 simultaneously. Step S12: The control device 13 (such as the second control unit 121) scans the monitoring area through the scanning device 12 to obtain identity data of each wireless identification card in the monitoring area.

Step S13: The control device 13 (such as the second control unit 121 or the third control unit 151) determines the identification card position of each wireless identification card in the monitoring area via the identification card positioning module 22.

In an embodiment, the control device 13 (such as the second control unit 121) can estimate the distance between each wireless identification card and the scanning device 12 according to the signal strength and direction corresponding to the response signal of each wireless identification card, and The estimated distance and the sub-area scanned or the scanning angle when each wireless identification card is sensed determine the sub-area (ie the identification card position) where each wireless identification card is located.

Step S14: The control device 13 (such as the first control unit 111, the second control unit 121, or the third control unit 151) determines whether the image position of any object image and the identification card of any wireless identification card via the comparison module 23. The positions are consistent (for example, they are located in the same sub-area or the distance between the image position and the ID position is less than the critical distance).

If the control device 13 determines that the image position of any object image matches the identification card position of any wireless identification card, step S15 is executed.

If the control device 13 determines that the image positions of any object images do not match the identification positions of all wireless identification cards, step S16 is performed.

Step S15: The control device 13 (such as the first control unit 111, the second control unit 121, or the third control unit 151) connects the position-matched object images and identity data through the connection module 24, and further connects the connected Object images and identity data are stored in the database 141 (the database 141 may be stored in the first storage unit 112, the second storage unit 122, or the third storage unit 152).

In an embodiment, the control device 13 first searches the database 141 for the corresponding object image according to the identity data (such as other object images or objects of the same object previously linked to the same identity data and stored in the database 141 during registration). Registered object image), and only when it is determined that the queried object image matches the captured object image (that is, the same object), the position-matched object image and identity data are linked. Therefore, the present invention can effectively ensure that the linked object image and identity data are correct, and can improve the recognition accuracy.

In an embodiment, the identification system 10 further includes a human-machine interface (such as a display or a speaker) for the administrator to perform real-time monitoring of the monitoring area. The control device 13 can determine the query object image and the captured object image. In case of discrepancy, a warning is issued via the aforementioned man-machine interface. Therefore, the present invention can effectively detect whether an object in the surveillance area is using a wireless identification card.

Step S16: The control device 13 (such as the first control unit 111, the second control unit 121, or the third control unit 151) determines that the image of the object is an unknown object via the unknown object detection module 25.

In an embodiment, the control device 13 may further issue a warning via a human-machine interface to remind the administrator that an unknown object exists in the surveillance area. Thereby, when the unknown object trails the legal object entering the surveillance area, it can be effectively detected by the present invention.

The present invention can instantly match object images and identity data, and can be used to judge objects with unknown identities in real time, and effectively save time and manpower required for manually matching object images and identity data.

It is worth mentioning that although the control device 13 in this embodiment executes steps S10-S11 and steps S12-13 simultaneously, it is not limited thereto.

In an embodiment, the control device 13 (such as the second control unit 121) usually controls the scanning device 12 to enter a low power consumption mode, and only controls the scanning device 12 to enter the working mode when an object image is recognized in the monitoring image to monitor the monitoring. Wireless identification in the area senses.

In an embodiment, the identification system 10 further includes an object sensor (such as a PIR sensor, an ultrasonic sensor, a door, etc.) electrically connected to the control device 13 (such as the first control unit 111 and the second control unit 121). Magnetic sensors, etc.), the object sensor is used to trigger a signal when it detects that an object enters the surveillance area. The control device 13 usually controls the image capturing device 11 and the scanning device 12 to enter a low power consumption mode, and controls the image capturing device 11 and the scanning device 12 to enter a working mode when a trigger signal is received to capture a monitoring image and place the monitoring area in the monitoring area. Wireless identification card.

Continuing, please refer to FIG. 5, which is a flowchart of a method for automatically identifying the identity of an object according to a second embodiment of the present invention. The identification method of this embodiment may be implemented by the identification system 10 shown in FIG. 1, FIG. 2 or FIG. 3 (the identification system 10 shown in FIG. 2 and FIG. 3 will be described later. In addition, the first control unit 111, The second control unit 121 and the third control unit 151 can implement the modules 20-27 of FIG. 2 by executing the foregoing sets of codes. The identification method of this embodiment includes the following steps.

Step S20: The first control unit 111 (that is, the control device 13) of the image capturing device 11 controls the photographing unit 113 to capture a surveillance image, and recognizes an object image of each object in the surveillance image through the image recognition module 20.

Step S21: The third control unit 151 (ie, the control unit 13) of the host 15 queries the database 141 stored in the third storage unit 152 according to the object image of each object to determine whether any object image belongs to a known object (such as Image of an object that was previously linked or registered).

If the third control unit 151 determines that any object image belongs to a known object (for example, there is a matching object image in the database 141 that has been linked with specific identity data), it can directly confirm the identity of the object. Otherwise, the third control unit 151 executes step S23.

In an embodiment, the third control unit 151 can further compare whether the identity data obtained from the database 141 matches the identity data of the wireless identification card at the same location to determine whether a fraudulent use of the wireless identification card occurs. .

While the image capture device 11 executes step S20 and the host 15 executes step S21, the scanning device 12 can execute step S22 at the same time. Step S22: The second control unit 121 (that is, the control device 13) of the scanning device 12 scans the monitoring area through the scanning unit 123 to obtain identity data of each wireless identification card in the monitoring area.

Step S23: The third control unit 151 of the host 15 calculates the number of object images in the surveillance image (that is, the number of objects in the surveillance area) via the image counting module 26, and calculates the number of identity data via the identification card counting module 27 (Ie, the number of wireless identification cards in the monitoring area), and determine whether the number of object images and the number of wireless identification cards are both 1.

If the third control unit 151 determines whether the number of object images and the number of wireless identification cards are both 1, it means that the object and the wireless identification card can be directly paired without performing positioning, and step S27 is performed. Otherwise, the third control unit 151 executes steps S24 and S25 to locate each object image and each wireless identification card.

Step S24: The third control unit 151 (ie, the control device 13) determines the image position of each object image in the monitoring area via the image positioning module 21.

During execution of step S24, the host 15 may also execute step S25 at the same time. Step S25: The third control unit 151 of the host 15 obtains the lookup table 140 from the third storage unit 152 (that is, the storage device 14), and according to the signal strength of the response signal of each wireless identification card and the signal used when sensing each wireless identification card The scan setting determines the sub-area (ie, the ID position) where each wireless ID is located.

Step S26: The third control unit 151 determines whether the image position of any object image matches the identification card position of any wireless identification card via the comparison module 23.

If the third control unit 151 determines that the image position of any object image matches the identification card position of any wireless identification card, step S27 is performed.

If the third control unit 151 determines that the image positions of any object images do not match the identification positions of all wireless identification cards, step S28 is performed.

Step S27: The third control unit 151 links the location-compatible object images and identity data via the link module 24, and stores them in the database 141.

Step S28: The third control unit 151 determines that the object image is an unknown object via the unknown object detection module 25.

Therefore, the present invention can quickly and immediately identify the identity of an object.

It is worth mentioning that although the lookup table 140 and the database 141 are stored in the third storage unit 152 of the host 15 in the above description, and the third control unit 151 of the host 15 executes steps S21 to S21, but does not use This limitation.

In an embodiment, the lookup table 140 and the database 141 may be stored in the first storage unit 112 of the image capture device 11, the second storage unit 122 of the scanning device 12, or both in the first storage unit 112 and the first storage unit 112. Two storage units 122. In addition, steps S21 to S27 are performed by the first control unit 111, by the second control unit 121, or by the first control unit 111 and the second control unit 121 in cooperation.

Please refer to FIG. 5 and FIG. 6 at the same time. FIG. 6 is a partial flowchart of a method for automatically identifying an object according to a third embodiment of the present invention. In this embodiment, the monitoring area is planned as a plurality of sub-areas. The scanning device 12 is a phase array scanning device (as shown in FIG. 3), and can selectively perform a single scan on a part of sub-regions (such as a single sub-region or a sub-region at the same angle).

In addition, the scanning device 12 stores a plurality of sets of scanning settings, and each scanning setting corresponds to a partial sub-area. When the scanning device 12 scans according to any scanning setting, it can sense the wireless identification card in the corresponding sub-area.

Compared to the identification method shown in FIG. 5, step S22 of the identification method of this embodiment includes the following steps.

Step S30: The second control unit 121 of the scanning device 12 selects at least one of the plurality of sub-regions.

In one embodiment, the second control unit 121 selects one of a plurality of sets of scan settings to select a sub-area corresponding to the scan setting.

Step S31: The second control unit 121 senses the selected sub-area. In an embodiment, the second control unit 121 controls the phase array antenna module 30 and the beam control module 31 to transmit a scanning beam toward a specific angle or a specific sub-region according to the selected scanning setting.

In addition, after the wireless identification card located at the foregoing angle or sub-area receives the scanning beam, it may return a response signal (second response signal) including identity data in response to the scanning beam.

Step S32: The second control unit 121 determines whether a response signal is received from any wireless identification card.

If the second control unit 121 determines that a response signal is received, step S33 is performed. Otherwise, step S34 is executed.

Step S33: The second control unit 121 records the signal strength or scanning setting (ie, the currently used scanning setting) corresponding to the wireless identification card according to the received response signal.

In one embodiment, after receiving the scanning signal sent in step S31, the wireless identification card can calculate the signal strength of the received scanning signal, add the calculated signal strength to the response signal, and return the response signal to the scanning device. 12.

Step S34: The second control unit 121 determines whether all sub-areas have been scanned (for example, whether all scanning settings have been selected for use).

If the second control unit 121 determines that all the sub-areas have been scanned, step S35 is performed. Otherwise, the second control unit 121 performs step S30 again to select another sub-area (such as selecting another scan setting) to continue scanning.

Step S35: The second control unit 121 selects one of the multiple response signals returned by the same wireless identification card (each response signal is received when sensing different sub-areas or angles respectively) (such as selecting a signal The strongest response signal). Then step S23 is executed.

It is worth mentioning that, in this embodiment, the lookup table 140 records the corresponding relationship between each scan setting, different signal strength (range), and each sub-region. Step S25 is to perform a table lookup according to the signal strength corresponding to the selected response signal and the scanning settings used to obtain the corresponding sub-area (ie the identification card position).

The invention can effectively locate the wireless identification card through the phase array scanning device. In addition, by using a phase array scanning device, the present invention can locate the wireless identification card in the case where only a single scanning device is provided, thereby reducing the system installation cost and the occupied space.

Continue to refer to FIG. 5, FIG. 6, and FIG. 7 at the same time. FIG. 7 is a partial flowchart of a method for automatically identifying the identity of an object according to a fourth embodiment of the present invention. Compared with the identification method shown in FIG. 6, the identification method of this embodiment can further scan a single wireless identification card to reduce interference and improve positioning accuracy. Step S22 of the identification method of this embodiment includes the following steps.

Step S40: The second control unit 121 of the scanning device 12 scans all sub-areas of the surveillance area for the first time to receive response signals (first response signals) of all wireless identification cards located in the surveillance area, and analyzes the first response Signal to get the identity information and quantity of all wireless identification cards. Next, the second control unit 121 selects one of the plurality of wireless identification cards (such as selecting corresponding identity data) and generates a corresponding scanning signal (this scanning signal only causes the selected wireless identification card to Two scans in response).

Then, the second control unit 121 performs steps S41-S46 according to the scan signal to perform a second scan on each sub-region to receive one or more response signals (second response signals) of the selected wireless identification card. In addition, when the second control unit 121 receives multiple response signals of the selected wireless identification card, it may select a response signal with the strongest signal strength for subsequent processing.

Steps S41-S46 of FIG. 7 are the same as or similar to steps S30-S35 of FIG. 6, respectively, and details thereof will not be repeated here. Then, step S47 is executed.

Step S47: The second control unit 121 determines whether all the wireless identification cards have been scanned (such as determining whether to scan for all identity data).

If the second control unit 121 determines that all the wireless identification cards have been scanned, step S23 is performed. Otherwise, the second control unit 121 executes step S40 again to select another wireless identification card (ie, select another identity data) to continue scanning.

By scanning a single wireless identification card, the present invention can effectively reduce wireless radio frequency interference, thereby improving scanning accuracy.

Continue to refer to FIGS. 8A to 8D at the same time. FIG. 8A is a first schematic diagram of automatically identifying the identity of an object according to an embodiment of the present invention, FIG. 8B is a second schematic diagram of automatically identifying the identity of an object according to an embodiment of the present invention, and FIG. A third schematic diagram of automatically identifying the identity of an object according to an embodiment of the invention, and FIG. 8D is a fourth schematic diagram of automatically identifying the identity of an object according to an embodiment of the invention.

As shown in FIG. 8A, in this example, the surveillance area includes nine sub-areas 41-49. The recognition system 10 can capture a surveillance image through the image capturing device 11 and determine that the sub-region 41 has an object 53, the sub-region 44 has an object 51, and the sub-region 45 has an object 52 after recognition.

Next, as shown in FIG. 8B, the identification system 10 may perform the first scan through the scanning device 12 and determine that there are two wireless identification cards 61 and 62 in the surveillance area. Next, the identification system 10 first performs a second scan on the wireless identification card 61 via the scanning device 12.

Specifically, the scanning device 12 of this example stores three sets of scanning settings corresponding to three sets of scanning angles V1-V3, respectively. The scanning device 12 first transmits a scanning beam toward the scanning angle V1 according to the first group of scanning settings, then transmits a scanning beam toward the scanning angle V2 according to the second group of scanning settings, and finally transmits a scanning beam toward the scanning angle V3 according to the third group of scanning settings. This completes the second scan.

Moreover, in the second scan, only the wireless identification card 61 transmits a response signal (second response signal) back and forth in response to the scanning beam sent by the scanning device 12.

It is worth mentioning that when the scanning device 12 transmits the scanning beam toward the scanning angle V1, the wireless identification card 61 will respond and return a response signal. In addition, when the scanning device 12 transmits the scanning beam toward the scanning angle V2, the overflow of the scanning beam will cause the wireless identification card 61 to respond and return another response signal. In this regard, when the scanning device 12 in this example receives the two sets of response signals of the wireless identification card 61, it selects the response signal with the strongest signal strength (such as the response signal corresponding to the scanning angle V1) to retain it.

Then, the identification system 10 can perform a table lookup according to the signal strength of the first set of scan settings and the response signal to determine the identification card position of the wireless identification card 61 as the sub-region 44.

Next, as shown in FIG. 8C, the recognition system 10 performs a third scan on the wireless identification card 62 via the scanning device 12 to respectively emit scanning beams toward the scanning angles V1-V3 according to the three sets of scanning settings.

And, in the third scan, only the wireless identification card 62 will transmit a response signal (second response signal) back and forth in response to the scanning beam sent by the scanning device 12.

In addition, when receiving multiple sets of response signals from the wireless identification card 62, the scanning device 12 selects a response signal with the strongest signal strength (such as a response signal corresponding to the scanning angle V2) to retain it.

Then, the identification system 10 may perform a table lookup according to the signal strength of the second set of scanning settings and the response signal to determine the identification card position of the wireless identification card 62 as the sub-region 45.

Next, as shown in FIG. 8D, the recognition system 10 may pair the object 51 located in the same sub-area with the wireless identification card 61, and pair the object 52 located in the same sub-area with the wireless identification card 62.

In addition, the identification system 10 can mark the objects 53 that have not been successfully paired with any wireless identification card, and prompt the administrator to find the unknown objects 53 through the human-machine interface. Accordingly, the present invention can accurately perform object identification.

Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those with ordinary knowledge in the technical field to which the present invention belongs can make various corresponding changes and modifications according to the present invention, but These corresponding changes and modifications should fall within the scope of the present invention.

10‧‧‧ Object Identification System

11‧‧‧Image capture device

110‧‧‧first transmission unit

111‧‧‧First Control Unit

112‧‧‧first storage unit

113‧‧‧Photography unit

12‧‧‧ scanning device

120‧‧‧Second transmission unit

121‧‧‧Second Control Unit

122‧‧‧Second storage unit

123‧‧‧scanning unit

13‧‧‧control device

14‧‧‧Storage device

140‧‧‧ Lookup Table

141‧‧‧Database

15‧‧‧Host

150‧‧‧Third transmission unit

151‧‧‧third control unit

152‧‧‧Third storage unit

20‧‧‧Image recognition module

21‧‧‧Image Positioning Module

22‧‧‧Identification card positioning module

23‧‧‧Comparison Module

24‧‧‧ Link Module

25‧‧‧Unknown Object Detection Module

26‧‧‧Image counting module

27‧‧‧Identification card counting module

30‧‧‧phase array antenna module

31‧‧‧ Beam Control Module

41-49‧‧‧ Subregion

51-53‧‧‧ objects

61-62‧‧‧Wireless Identification Card

V1-V3‧‧‧Scan angle

S10-S16‧‧‧First identification step

S20-S28‧‧‧Second identification step

S30-S35‧‧‧The first induction step

S40-S47‧‧‧Second induction step

FIG. 1 is a structural diagram of an object identification system according to a first aspect of the present invention.

FIG. 2 is a detailed architecture diagram of a control device of the present invention.

FIG. 3 is a structural diagram of an object identification system according to a second aspect of the present invention.

FIG. 4 is a flowchart of a method for automatically identifying the identity of an object according to the first embodiment of the present invention.

FIG. 5 is a flowchart of a method for automatically identifying an identity of an object according to a second embodiment of the present invention.

6 is a partial flowchart of a method for automatically identifying the identity of an object according to a third embodiment of the present invention.

FIG. 7 is a partial flowchart of a method for automatically identifying the identity of an object according to a fourth embodiment of the present invention.

FIG. 8A is a first schematic diagram of automatically identifying the identity of an object according to an embodiment of the present invention.

8B is a second schematic diagram of automatically identifying the identity of an object according to an embodiment of the present invention.

FIG. 8C is a third schematic diagram of automatically identifying the identity of an object according to an embodiment of the present invention.

FIG. 8D is a fourth schematic diagram of automatically identifying the identity of an object according to an embodiment of the present invention.

Claims (16)

A method for automatically identifying the identity of an object includes the following steps: a) shooting a monitoring area through an image capturing device to obtain a monitoring image, and identifying at least one object image in the monitoring image; b) scanning the through a scanning device Monitoring area to obtain identity information of a wireless identification card; c) determining an image position of the object image in the monitoring area; d) determining an identification card position of the wireless identification card in the monitoring area; and e) Determine whether the position of the image matches the position of the identification card. The method for automatically identifying the identity of an object according to claim 1, further comprising a step f) linking the image of the object and the identity data when the location of the image matches the location of the ID of the wireless identification card. The method for automatically identifying the identity of an object according to claim 1, wherein step b) includes a step b1) respectively sensing a plurality of sub-areas of the surveillance area to receive a response signal from the wireless identification card, wherein the response signal Including the identity information; the step c) is to set the sub-area where the object image is located as the image position; the step d) is to set the sub-area where the wireless identification card is located as the identification position; the Step e) is to determine whether the object image and the wireless identification card are located in the same sub-region. The method for automatically identifying the identity of an object as described in claim 3, wherein step b1) is receiving the multiple response signals of the wireless identification card, and each of the response signals is received when sensing different sub-areas. To; step d) is to use the sub-area of the response signal with the strongest signal strength as the identification card position. The method for automatically identifying the identity of an object as described in claim 1, wherein step b includes a step b2) respectively sensing a plurality of sub-areas of the surveillance area to obtain the plurality of first response signals of the plurality of wireless identification cards Wherein each of the first response signals includes the identity information of each of the wireless identification cards; after step b2), and before step d), the following steps are further included: g1) selecting one of the plurality of wireless identification cards; g2) scan the multiple sub-areas according to multiple scan settings and the identity information of the selected wireless ID to receive a second response signal from the selected wireless ID; g3) upon receiving the first After the second response signal, record a signal strength or the scan setting corresponding to the second response signal; and g4) repeat the steps g1) to g3) until all the wireless ID scans are completed. The method for automatically identifying the identity of an object according to claim 5, wherein the scanning device includes a phase array antenna module and a beam control module, and the multiple scanning settings correspond to multiple scanning angles respectively; the step g3) is controlling The phase array antenna module and the beam control module respectively transmit a scanning beam toward each of the scanning angles, whereby only the selected wireless identification card returns the second response signal in response to the scanning beam. The method for automatically identifying the identity of an object as described in claim 5, wherein step d) includes the following steps: d11) obtaining a lookup table, wherein the lookup table records one between the plurality of sub-areas and the plurality of signal strengths Correspondence relationship; and d12) determining the sub-area where each wireless identification card is located as the identification card position according to the lookup table and the signal strength corresponding to each wireless identification card. The method for automatically identifying the identity of an object as described in claim 5, wherein step d) includes the following steps: d21) obtaining a lookup table, wherein the lookup table records one between the plurality of sub-areas and the plurality of scan settings Corresponding relationship; and d22) determining the sub-area where each wireless identification card is located as the identification card position according to the lookup table and the scan setting corresponding to each wireless identification card. An object identity recognition system includes: an image capture device for capturing a surveillance area to obtain a surveillance image; a scanning device for scanning the surveillance area to obtain identity data of a wireless identification card; and a control A device electrically connected to the image capturing device and the scanning device, the control device comprising: an image recognition module for identifying at least one object image in the surveillance image; an image positioning module for determining the object An image position in the surveillance area of the image; an identification card positioning module for determining an identification position of the wireless identification card in the monitoring area; and a comparison module for determining the image position and Whether the identification card matches. The object identification system according to claim 9, wherein the control device further includes a link module for connecting the image of the object and the identity data when the position of the image matches the position of the identification card. The object identification system according to claim 9, wherein the scanning device is configured to sense the multiple sub-areas of the surveillance area to receive a response signal including the identity data from the wireless identification card; the image positioning module is The sub-area where the object image is located is set as the image position; the identification card positioning module is set the sub-area sensing the wireless identification card as the identification position; the comparison module is to determine the object image Whether it is located in the same sub-region as the wireless identification card. The object identification system according to claim 11, wherein the scanning device receives the plurality of response signals of the wireless identification card, and each of the response signals is received when sensing different sub-areas; The identification card positioning module uses the sub-area of the response signal with the strongest signal strength as the identification card position. The object identification system according to claim 9, wherein the scanning device senses the plurality of sub-areas of the surveillance area to obtain the plurality of first response signals of the plurality of wireless identification cards, and each of the first responses The signal includes the identity information of each wireless identification card, and the scanning device scans the multiple sub-areas according to multiple scan settings and the identity information of each wireless identification card to receive a second response signal from each wireless identification card. And a signal strength recorded after receiving the second response signal or the scan setting corresponding to the second response signal. The object identification system according to claim 13, wherein the plurality of scanning settings respectively correspond to a plurality of scanning angles, and the scanning device includes: a phased array antenna module for transmitting a scanning beam and receiving the wireless identification certificate Transmitted signals; and a beam control module connected to the phase array antenna module for controlling the phase array antenna module to transmit at each of the scanning angles according to each of the scan settings and the identity data of each wireless identification card A scanning beam, whereby only the selected wireless identification card returns the second response signal in response to the scanning beam. The object identification system according to claim 13, further comprising a storage device electrically connected to the control device to store a look-up table, the look-up table records a number between the plurality of sub-areas and the plurality of signal strengths. Corresponding relationship; the identification card positioning module determines the sub-area where each wireless identification card is located as the identification card position according to the lookup table and the signal strength corresponding to each wireless identification card. The object identification system according to claim 13, further comprising a storage device electrically connected to the control device to store a look-up table, the look-up table records one between the plurality of sub-areas and the plurality of scan settings. Corresponding relationship; the identification card positioning module determines the sub-area where each wireless identification card is located as the identification card position according to the lookup table and the scan settings corresponding to each wireless identification card.