TWI459304B - Object movement direction radio frequency identification method, device and the use of the device control area personnel access control system - Google Patents

Description

Radio frequency identification method and device for moving object direction and control personnel entering and exiting control system using the device

The invention relates to a method and a device for determining the moving direction of an object, in particular to a method and a device for radio frequency identification of an object moving direction and a control system for a person entering and exiting a control area using the device.

In a general industrial environment, there are many areas or spaces that are highly dangerous. Therefore, in order to prevent accidents from happening and to ensure the safety of personnel operations, strict management rules are established for personnel entering and leaving the control area. For example, If you have received some training, you need at least two or more people to walk together, and you can only wait for a period of time and be authorized to enter.

Generally, the control area covers a wide range and has many entrances and exits. For regulatory purposes, it has been proposed to use the security access control or employee identification radio frequency identification (RFID) system to control the personnel in the control area, such as the announcement of patents in China. "Security Access Control System and Method" disclosed in No. I251146, "Radio Frequency Identification Security Method and System" disclosed in No. I331304, and "Wireless Notification Monitoring Method and System and Apparatus Using the Method" disclosed in No. I333635 .

I251146 "Safety Access Control System and Method" uses radio frequency identification technology combined with a weighing platform to use weight information to ensure that one person or more people enter the control area at a time, thereby achieving access control. However, the above-mentioned system hardware device is complicated, high in cost and time-consuming in operation, and the weight ratio is difficult to set the allowable error range of the parameter. If the person entering or leaving the tool or the device is prone to misjudgment, it is not suitable for the industrial control area. personnel Access control.

I331304 "Radio Frequency Identification Security Method and System" uses radio frequency identification technology to control whether the use rights of the controlled device is turned on, thereby achieving protection for the controlled device. However, the above system can only ensure that the controlled device is used in the area, and it cannot be confirmed that the authorized personnel use the controlled device in the area, and therefore cannot be applied to the entry and exit control of the control area personnel.

I333635 "Wireless notification monitoring method and system and device using the same method" is to form a wireless notification monitoring system through a small area wireless network frame by a main control terminal and a plurality of receiving ends, thereby controlling the mobile current status of each receiving end, thereby achieving The effect of automatic name and security monitoring. However, the above system can only make the receiving end within the range of communication, can not further know the location or orientation, and can not obtain the information of the moving direction. Therefore, it cannot be applied to the entry and exit control of the control area personnel.

In addition, most of the above systems are radio frequency identification systems in the 13.56 MHz band, and their reading distances are all within 10 cm, making their application in industrial environments more limited.

In recent years, the radio frequency identification system of the UHF band has been booming, and the reading distance can exceed 5 meters, so it can be used to solve the problem of insufficient reading distance. However, the RFID tag of the UHF band itself is easily affected by adjacent items and changes its original characteristics, resulting in a decrease in effective reading distance and a change in radio wave characteristics. In addition, when the tag antenna is placed or the position is not good, the problem of reading a dead angle is extremely easy.

Figure 1A shows a schematic diagram of the radiation field shape of a conventional coupled antenna when placed horizontally. FIG. 1B shows a schematic diagram of the radiation field shape of a conventional coupled antenna when placed vertically. Such as As shown in FIG. 1A, when the conventional coupled antenna a is horizontally placed, its radiation plane is an XZ plane, and there is almost no radiation wave in the Y-axis direction. Therefore, if the reader antenna is disposed in the Y-axis direction, it cannot be read. Label information. In addition, as shown in FIG. 1B, when the coupling antenna a is placed vertically, the radiation plane is the XY plane, and there is almost no radiation wave in the Z-axis direction. Therefore, if the reader antenna is disposed in the Z-axis direction, it will not be able to Read the tag information.

2A shows a front view of a radiation distribution of a conventional coupled antenna tag horizontally attached to an object. 2B shows a top view of a radiation distribution of a conventional coupled antenna tag horizontally attached to an object. As shown in FIG. 2A and FIG. 2B, when the conventional coupled antenna tag Ta is horizontally attached to an object O, it can be found that it has the strongest radiation wave on the label side, and secondly on the opposite side of the label, and the object The front and rear direction of the O wave signal is the weakest, thus becoming a tag reading dead angle.

In summary, when reading a tag, the conventional reader cannot read the tag information smoothly once it encounters a read dead angle, which makes it difficult for the conventional radio frequency identification system to determine the moving direction of the object.

Therefore, it is necessary to provide an innovative and progressive radio frequency identification method and device for moving directions of an object and a control personnel access control system using the device in the control area to solve the above problem.

The invention provides a method for radio frequency identification of an object moving direction, comprising the steps of: (a) providing an object, a first radio frequency identification tag and a second radio frequency identification tag, the object having a first side surface and a second side surface The first radio frequency identification tag and the second radio frequency identification tag respectively have a first coupling antenna and a second coupling. The first antenna and the second antenna may respectively generate a first horizontal polarization wave and a second horizontal polarization wave, wherein the first horizontal polarization wave has a radiation direction perpendicular to the first coupling pole The length direction of the antenna, the radiation direction of the second horizontal polarized wave is perpendicular to the length direction of the second coupler antenna; (b) respectively setting the first radio frequency identification tag and the second radio frequency identification tag to the first object of the object a side surface and a second side surface, wherein a length direction of the first coupling antenna and a length direction of the second coupling antenna are perpendicular to a moving direction of the object; and (c) reading by using at least one RFID reader At least one of the group of the first radio frequency identification tag and the second radio frequency identification tag to determine an actual moving direction of the object.

The present invention further provides a radio frequency identification device for moving an object, comprising: a first radio frequency identification tag disposed on a first side surface of an object, the first radio frequency identification tag having a first coupling antenna, the first The coupling antenna can generate a first horizontally polarized wave, the radiation direction of the first horizontal polarized wave is perpendicular to the length direction of the first dipole antenna, and the length direction of the first dipole antenna is perpendicular to the moving direction of the object a second radio frequency identification tag disposed on a second side surface of the object, the second side surface opposite to the first side surface, the second radio frequency identification tag having a second coupling antenna, the second The coupled antenna can generate a second horizontally polarized wave, the radiation direction of the second horizontal polarized wave is perpendicular to the length direction of the second coupled antenna, and the length direction of the second coupled antenna is perpendicular to the moving direction of the object And at least one radio frequency identification reader for reading at least one of the group of the first radio frequency identification tag and the second radio frequency identification tag to determine the actual movement of the object To.

The invention further provides a control area personnel access control system, comprising: at least one control entrance; a plurality of objects respectively disposed on each of the entry and exit personnel to pass through the control entrance; at least one object moving direction radio frequency identification device, including a plurality of first radio frequency identification tags, a plurality of second radio frequency identification tags, and at least one radio frequency identification tag, wherein the first radio frequency identification tags are respectively disposed on a first side surface of each of the objects, and each of the first radio frequency The identification tag has a first decoupling antenna, and each of the first decoupling antennas generates a first horizontally polarized wave, and the radiation direction of each of the first horizontally polarized waves is perpendicular to a length direction of each of the first decoupling antennas. And the length direction of each of the first antennas is perpendicular to a moving direction of each of the objects, and the second RFID tags are respectively disposed on a second side surface of each of the objects, wherein the second side surface is opposite to the first side The second radio frequency identification tag has a second dipole antenna, and each of the second dipole antennas generates a second horizontal polarized wave, each of the second horizontal polarizations The radiation direction is perpendicular to the length direction of each of the second coupling antennas, and the length direction of each of the second coupling antennas is perpendicular to the moving direction of each object, and the RFID reader is disposed on one side of the control entrance and exit. And a system server configured to read at least one of the groups of the first radio frequency identification tag and each of the second radio frequency identification tags; and a system server electrically connecting the radio frequency of the object to the radio frequency identification device The identification reader is configured to analyze the tag information read by the RFID reader and determine the actual moving direction of each object.

The first radio frequency identification tag and the second radio frequency identification tag are arranged, the length direction of the first antenna of the first radio frequency identification tag and the second antenna of the second radio frequency identification tag are Longitudinal in the length direction Straight to the direction of movement of the object. Thereby, the first horizontal polarization wave of the first coupling antenna and the second horizontal polarization wave of the second coupling antenna form an omnidirectional radiation wave around the object, and the omnidirectional radiation wave makes The RFID reader can be effectively read regardless of the orientation on the plane, and the moving direction of the object can be smoothly determined.

The embodiments of the present invention can be more clearly understood, and the objects, features, and advantages of the present invention will become more apparent. The details are as follows.

3 is a flow chart showing a radio frequency identification method for moving directions of an object of the present invention. 4 shows a schematic diagram of an object, a first radio frequency identification tag, and a second radio frequency identification tag in the method of the present invention. Figure 5A shows a front view of the horizontally polarized wave distribution of the first and second dipole antennas in the method of the present invention. Figure 5B shows a top view of the horizontally polarized wave distribution of the first and second dipole antennas in the method of the present invention. Please refer to step S31, FIG. 4, FIG. 5A and FIG. 5B of FIG. 3 to provide an object O, a first radio frequency identification tag 11 and a second radio frequency identification tag 12. The object O has a first side surface S1 and a second side surface S2, and the second side surface S2 is opposite to the first side surface S1. In the embodiment, the object O is used for safety of the control area personnel. cap. The first radio frequency identification tag 11 and the second radio frequency identification tag 12 respectively have a first decoupling antenna 111 and a second decoupling antenna 121. The first decoupling antenna 111 and the second decoupling antenna 121 can respectively A first horizontal polarized wave W1 and a second horizontal polarized wave W2 are generated.

Fig. 6 is a view showing the longitudinal direction of the first horizontally polarized wave of the present invention perpendicular to the longitudinal direction of the first dipole antenna. Fig. 7 is a view showing the direction in which the radiation direction of the second horizontally polarized wave of the present invention is perpendicular to the longitudinal direction of the second dipole antenna. Referring to FIG. 5B, FIG. 6 and FIG. 7 , in the embodiment, the radiation direction WD1 of the first horizontally polarized wave W1 is perpendicular to the longitudinal direction LD1 of the first dipole antenna 111, and the second horizontal pole The radiation direction WD2 of the chemical wave W2 is perpendicular to the longitudinal direction LD2 of the second coupling antenna 121.

Figure 8 is a diagram showing the direction of movement of a vertical object in the longitudinal direction of the first dipole antenna of the present invention. Fig. 9 is a view showing the moving direction of the vertical object in the longitudinal direction of the second coupling antenna of the present invention. Referring to step S32, FIG. 4, FIG. 5B, FIG. 8 and FIG. 9 of FIG. 3, the first radio frequency identification tag 11 and the second radio frequency identification tag 12 are respectively disposed on the first side surface S1 of the object O and The two sides S2, and the length direction LD1 of the first coupling antenna 111 and the length direction LD2 of the second coupling antenna 121 are perpendicular to the moving direction MD of the object O, so that the first coupling antenna 111 is A horizontally polarized wave W1 and a second horizontally polarized wave W2 of the second coupled antenna 121 form an omnidirectional radiated wave W around the object O. Preferably, the longitudinal direction LD1 of the first dipole antenna 111 is parallel to the longitudinal direction LD2 of the second dipole antenna 121.

Fig. 10 is a view showing the radio frequency identification device for moving the object of the present invention. Referring to step S33 and FIG. 10 of FIG. 3, at least one of the first radio frequency identification tag 11 and the second radio frequency identification tag 12 is read by at least one radio frequency identification reader R. To determine the actual moving direction of the object O. In this embodiment, the omnidirectional radiation wave W can The RFID reader R can effectively read the tag information regardless of the orientation set on the plane.

The manner in which the present invention judges the actual moving direction of the object O is as follows, which will be described in detail later.

[The first way of judging]

Figure 11 is a diagram showing the first mode of judging by the object of the present invention moving from the first direction to the second direction. Figure 12 is a diagram showing the first mode of judging that the object of the present invention moves from the second direction to the first direction. Referring to FIG. 11, the first method of determining the first radio frequency identification tag 11 is read by a first radio frequency identification reader R1 and a second radio frequency identification reader R2. When the first radio frequency identification reader R1 reads the first radio frequency identification tag 11 and then reads the first radio frequency identification tag 11 by the second radio frequency identification reader R2, the object O is determined. Moving from a first direction D1 to a second direction D2, in the embodiment, the second direction D2 is opposite to the first direction D1, and the first direction D1 is selected from the following ones: front, back, left And right. Referring to FIG. 12, when the second RFID reader R2 reads the first RFID tag 11 and then reads the first RFID tag 11 by the first RFID reader R1, Then, it is determined that the object O moves from the second direction D2 to the first direction D1, and the second direction D2 may also be selected from the following ones: front, back, left, and right.

[The second way of judging]

Figure 13 is a diagram showing the second way of judging the movement of the object of the present invention from the first direction to the second direction. Figure 14 is a diagram showing the second manner of judging the movement of the object of the present invention from the second direction to the first direction. Second type of the invention The judging method is basically the same as the first judging method, and the difference is only that the second judging method reads the second radio frequency identification by using the first radio frequency identification reader R1 and the second radio frequency identification reader R2. Label 12.

Referring to FIG. 13, when the first RFID reader R1 reads the second RFID tag 12 and then reads the second RFID tag 12 by the second RFID reader R2, Then, the object O is determined to be moved from a first direction D1 to a second direction D2. In this embodiment, the second direction D2 is opposite to the first direction D1, and the first direction D1 is selected from the following ones: Front, back, left and right. Referring to FIG. 14, when the second RFID reader R2 reads the second RFID tag 12 and then reads the second RFID tag 12 by the first RFID reader R1, Then, it is determined that the object O moves from the second direction D2 to the first direction D1, and the second direction D2 may also be selected from the following ones: front, back, left, and right.

[The third way of judging]

Figure 15 is a diagram showing a third manner of determining the movement of the object of the present invention from the first direction to the second direction. Figure 16 is a diagram showing a third manner of determining the movement of the object of the present invention from the second direction to the first direction. Referring to FIG. 15, the third method of determining the third radio frequency identification tag 11 and the second radio frequency identification tag 12 are read by a radio frequency identification reader R, and according to different signal strengths of the two tags. The actual moving direction of the object O is determined. In this embodiment, the first radio frequency identification tag 11 and the second radio frequency identification tag 12 respectively have a first identification code (such as 149377R) and a second identification code (such as 149377L), and the first identification code is The second identification code is different to distinguish the two labels. In addition, due to the positive radiation gain of the tag Greater than the back radiation gain, therefore, when the object O passes the front of the radio frequency identification reader R, the reply signal strength of the label of the radio frequency identification reader R is necessarily greater than that of the radio frequency identification reader R The replies to the signal strength of the tag, so that the identification code of the two tags and the replies of the signal strength read by the RFID reader R can determine the actual moving direction of the object O.

When the response signal strength (-45dB) of the first radio frequency identification tag 11 is greater than the response signal strength (-68dB) of the second radio frequency identification tag 12, the object O is determined to be from a first direction D1 to a second direction. D2 moves. In this embodiment, the second direction D2 is relative to the first direction D1, and the first direction D1 is selected from the following: front, back, left, and right.

Referring to FIG. 16, when the response signal strength (-68dB) of the first RFID tag 11 is less than the response signal strength (-45dB) of the second RFID tag 12, the object O is determined to be from the second direction D2. Moving to the first direction D1, the second direction D2 may also be selected from one of the following: front, back, left, and right.

Fig. 17 is a flow chart showing the information processing of the third mode of judgment of the present invention. Referring to step S171 of FIG. 17, it is determined whether the two tag information is read at the same time. If yes, go to step S172; if no, go to step S173.

Please refer to step S172 of FIG. 15 , FIG. 16 and FIG. 17 to determine whether the reply signal strength is the label 12 < label 11 . If yes, it is determined that the object O moves from the left side to the right side of the radio frequency identification reader R to the front of the radio frequency identification reader R; if not, it is determined that the object O moves from the right side of the radio frequency identification reader R to the left side through the radio frequency identification read Take the front of the R.

Please refer to step S173 of FIG. 15 , FIG. 16 and FIG. 17 to determine whether it is the information of the tag 11 . When the RFID reader R cannot read the two tag information at the same time, it can still read the tag closest to it, and by judging whether it is the information of the tag 11, the actual moving direction of the object O can still be judged. If yes, it is determined that the object O moves from the left side to the right side of the radio frequency identification reader R to the front of the radio frequency identification reader R; if not, it is determined that the object O moves from the right side of the radio frequency identification reader R to the left side through the radio frequency identification read Take the front of the R.

Referring to FIG. 10 again, the object moving direction radio frequency identification device 10 includes a first radio frequency identification tag 11, a second radio frequency identification tag 12, and at least one radio frequency identification reader R.

Referring to FIG. 4, FIG. 5B, FIG. 6, FIG. 8 and FIG. 10, the first radio frequency identification tag 11 is disposed on a first side surface S1 of an object O, and the first radio frequency identification tag 11 has a first The first antenna 120 can generate a first horizontally polarized wave W1, and the radiation direction WD1 of the first horizontally polarized wave W1 is perpendicular to the first coupled antenna 111. The longitudinal direction LD1 of the first dipole antenna 111 is perpendicular to the moving direction MD of the object O.

Referring to FIG. 4, FIG. 5B, FIG. 7, FIG. 9, and FIG. 10, the second radio frequency identification tag 12 is disposed on a second side surface S2 of the object O, and the second side surface S2 is opposite to the first side. The second radio frequency identification tag 12 has a second dipole antenna 121 and a second identification code, and the second dipole antenna 121 generates a second horizontal polarization W2. The second horizontal polarization The radiation direction WD2 of the wave W2 is perpendicular to the length direction of the second coupling antenna 121 LD2, and the length direction LD2 of the second coupling antenna 121 is perpendicular to the moving direction MD of the object O. In addition, the second identification code is different from the first identification code to distinguish the two labels.

Referring to FIG. 10, the RFID reader R is configured to read at least one of the first radio frequency identification tag 11 and the second radio frequency identification tag 12 to determine the object O. The actual direction of movement.

Figure 18 is a diagram showing a first embodiment of the control zone entry and exit control system of the present invention. Referring to FIG. 10 and FIG. 18, the control area personnel access control system includes at least one control entrance 20, a plurality of objects O, at least one object moving direction radio frequency identification device 10, and a system server 30.

The objects O are respectively disposed on each of the entry and exit personnel P to pass through the control entrance and exit 20. In this embodiment, the objects O are helmets.

The object moving direction radio frequency identification device 10 includes a plurality of first radio frequency identification tags 11, a plurality of second radio frequency identification tags 12, and at least one radio frequency identification reader R.

Referring to FIG. 5B, FIG. 6, FIG. 8, FIG. 10 and FIG. 18, the first radio frequency identification tags 11 are respectively disposed on one of the first side surfaces S1 of the objects O, and the first radio frequency identification tags 11 are respectively disposed. Having a first dipole antenna 111 and a first identification code, each of the first dipole antennas 111 can generate a first horizontally polarized wave W1, and the radiation direction WD1 of each of the first horizontally polarized waves W1 is perpendicular to each other. The longitudinal direction LD1 of the first dipole antenna 111 and the longitudinal direction LD1 of each of the first dipole antennas 111 are perpendicular to the moving direction MD of each object O.

Please refer to FIG. 5B, FIG. 7, FIG. 9, FIG. 10 and FIG. 18 for the second shot. The frequency identification tags 12 are respectively disposed on one of the second side surfaces S2 of the objects O, the second side surface S2 is opposite to the first side surface S1, and each of the second radio frequency identification tags 12 has a second coupling antenna. 121 and a second identification code, each of the second antennas 121 can generate a second horizontally polarized wave W2, and the radiation direction WD2 of each of the second horizontally polarized waves W2 is perpendicular to each of the second coupled antennas 121 The longitudinal direction LD2 of each of the second dipole antennas 121 is perpendicular to the moving direction MD of each of the objects O. In this embodiment, each of the first horizontally polarized wave W1 and each of the second horizontally polarized waves W2 forms an omnidirectional radiation wave W around each of the objects O. In addition, preferably, the longitudinal direction LD1 of each of the first dipole antennas 111 is parallel to the longitudinal direction LD2 of each of the second dipole antennas 121.

Referring to FIG. 10 and FIG. 18, the RFID reader R is disposed on one side of the control port 20 for reading each of the first radio frequency identification tag 11 and each of the second radio frequency identification tags 12 At least one of the constituent groups.

The system server 30 is electrically connected to the radio frequency identification reader R of the object moving direction radio frequency identification device 10 for analyzing the tag information read by the radio frequency identification reader R and determining the actuality of each object O. Move direction. In this embodiment, the system server 30 and the RFID reader R are connected to a wiring station 40 to complete an electrical connection therebetween.

Through the foregoing method for radio frequency identification of the moving direction of the object of the present invention, the control personnel of the control area can smoothly count and record the data of the personnel entering and leaving the control area.

Please refer to FIG. 19, which shows the entry and exit control system of the control area of the present invention. A schematic diagram of a second embodiment. The second embodiment is basically the same as the first embodiment except that the second embodiment includes at least one electronic control door 50 to which the electronic control door 50 is mounted. When a person wants to enter the control area, the RFID reader R reads the identification code of the member, and performs data comparison. If the member is allowed to enter the control area, the system transmits an opening signal to the battery. The door 50 is controlled to automatically open the electronic control door 50 for the person to enter. On the other hand, if the member is not allowed to enter the control area, the electronic control door 50 will not be opened, thereby achieving the purpose of personnel control.

Please refer to FIG. 20, which is a schematic diagram showing a third embodiment of the control zone entry and exit control system of the present invention. The third embodiment is basically the same as the second embodiment except that the object moving direction radio frequency identification device 10 of the third embodiment includes a first radio frequency identification reader R1 and a second radio frequency identification reading. R2. The first RFID reader R1 and the second RFID reader R2 are respectively disposed at two sides of the control portal 20, and the first RFID reader R1 performs labeling when a person enters the regulatory portal 20 The information reads and controls the opening and closing of the electronic control door 50, and the second RFID reader R2 reads the label information and controls the opening and closing of the electronic control door 50 when the person leaves the control entrance 20.

In addition, in order to enable the opening and closing state of the electronic control door 50 to be immediately reflected on the system control screen, the embodiment may further include at least one sensor 60, and the sensor 60 is mounted on the electronic control door 50. The opening and closing state of the electric door 50 is monitored.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Changes remain without departing from the spirit of the invention. The scope of the invention should be as set forth in the appended claims.

10‧‧‧Object moving direction radio frequency identification device

11‧‧‧First RFID tag

111‧‧‧First Coupled Antenna

12‧‧‧Second Radio Frequency Identification Tag

121‧‧‧Second-coupled antenna

20‧‧‧Control access

30‧‧‧System Server

40‧‧‧Wiring station

50‧‧‧Electric control door

60‧‧‧ sensor

A‧‧‧coupled antenna

D1‧‧‧ first direction

D2‧‧‧ second direction

LD1‧‧‧The length of the first coupling antenna

LD2‧‧‧2nd coupler antenna length direction

MD‧‧‧The direction of movement of objects

O‧‧‧ objects

P‧‧‧Incoming and outgoing personnel

R‧‧‧ Radio Frequency Identification Reader

R1‧‧‧First RFID Reader

R2‧‧‧Second Radio Frequency Identification Reader

S1‧‧‧ first side surface

S2‧‧‧ second side surface

Ta‧‧‧coupled antenna tag

W‧‧‧ Omnidirectional radiation waves

W1‧‧‧First horizontal polarized wave

W2‧‧‧ second horizontal polarized wave

WD1‧‧‧radiation direction of the first horizontal polarized wave

WD2‧‧‧radiation direction of the second horizontal polarized wave

1A is a schematic view showing a radiation field shape when a conventional coupled antenna is horizontally placed; FIG. 1B is a schematic view showing a radiation field shape when a conventional coupled antenna is vertically placed; FIG. 2A shows a conventional coupled antenna tag horizontally attached to an object. Figure 2B shows a top view of the radiation distribution of a conventional coupled antenna tag horizontally attached to an object; Figure 3 shows a flow chart of the method for radio frequency identification of the moving direction of the object of the present invention; Figure 4 shows one of the methods of the present invention A schematic diagram of an object, a first radio frequency identification tag and a second radio frequency identification tag; FIG. 5A shows a front polarized wave distribution front view of the first and second coupler antennas in the method of the present invention; FIG. 5B shows A top view of a horizontally polarized wave distribution of a first coupling antenna and a second coupling antenna in the method of the present invention; and FIG. 6 is a schematic view showing a longitudinal direction of the first horizontally polarized wave in the longitudinal direction of the first coupling antenna according to the present invention; 7 is a schematic view showing the longitudinal direction of the second horizontally polarized wave of the second vertical polarized antenna of the present invention; FIG. 8 is a view showing the longitudinal direction of the first coupled antenna of the present invention. A schematic view of the moving direction of the body; Figure 9 shows a second longitudinal direction of the dipole antenna of the present invention, a schematic view of a vertical moving direction of the object; Figure 10 is a schematic view showing the radio frequency identification device for moving the object of the present invention; Figure 11 is a view showing the first mode of judging that the object of the present invention moves from the first direction to the second direction; Figure 12 is a view showing the object of the present invention from the second direction to the first FIG. 13 is a schematic diagram showing a second manner of determining the movement of an object of the present invention from a first direction to a second direction; FIG. 14 is a view showing the object of the present invention from a second direction to a first direction; FIG. 15 is a schematic view showing a third manner of determining the movement of the object of the present invention from the first direction to the second direction; FIG. 16 is a view showing the object of the present invention moving from the second direction to the first direction. FIG. 17 is a schematic diagram showing the information processing of the third judgment mode of the present invention; FIG. 18 is a schematic view showing the first embodiment of the control zone entry and exit control system of the present invention; and FIG. 19 is a view showing the control zone of the present invention. Schematic diagram of a second embodiment of a personnel access control system; and FIG. 20 is a schematic illustration of a third embodiment of a control zone entry and exit control system of the present invention Figure.

Claims (46)

A radio frequency identification method for moving an object includes the following steps: (a) providing an object, a first radio frequency identification tag, and a second radio frequency identification tag, the object having a first side surface and a second side surface, the The first radio frequency identification tag and the second radio frequency identification tag respectively have a first decoupling antenna and a second decoupling antenna, the first decoupling antenna and the second The coupled antennas respectively generate a first horizontally polarized wave and a second horizontally polarized wave. The radiation direction of the first horizontally polarized wave is perpendicular to the length direction of the first coupled antenna, and the second horizontally polarized wave The radiation direction is perpendicular to the length direction of the second coupling antenna; (b) the first radio frequency identification tag and the second radio frequency identification tag are respectively disposed on the first side surface and the second side surface of the object, and the first The length direction of the coupling antenna and the length direction of the second coupling antenna are perpendicular to the moving direction of the object; and (c) reading the first radio frequency identification tag and the second radio frequency identification tag by using at least one radio frequency identification reader Place To at least one of the group, to determine the actual direction of movement of the object. The method of claim 1, wherein the first radio frequency identification tag and the second radio frequency identification tag respectively have a first identification code and a second identification code, the first The identification code is different from the second identification code. The radio frequency identification method for moving an object according to claim 1, wherein the radio frequency identification reader of step (c) reads the first radio frequency identification tag and The second radio frequency identification tag determines the actual moving direction of the object according to the difference of the echo signal strengths of the two tags. The radio frequency identification method for moving the object according to claim 3, wherein when the response strength of the first radio frequency identification tag in step (c) is greater than the response signal strength of the second radio frequency identification tag, determining that the object is One direction moves in a second direction. The method according to claim 4, wherein the second direction is opposite to the first direction, and the first direction is selected from the group consisting of: front, back, left, and right. The radio frequency identification method for moving the object according to claim 3, wherein when the response strength of the first radio frequency identification tag of step (c) is less than the response signal strength of the second radio frequency identification tag, determining that the object is The second direction moves in a first direction. The method of claim 1, wherein the first direction is relative to the second direction, and the second direction is selected from the group consisting of: front, back, left, and right. The method for radio frequency identification of an object moving direction according to claim 1, wherein the step (c) reads the first radio frequency identification tag by using a first radio frequency identification reader and a second radio frequency identification reader. The radio frequency identification method of the object moving direction according to claim 8, wherein when the first radio frequency identification reader of the step (c) first reads the first radio frequency identification tag, determining that the object is from a first direction Move in a second direction. The method for radio frequency identification of an object moving direction according to claim 9, wherein the method The second direction is relative to the first direction, and the first direction is selected from the group consisting of: front, back, left, and right. The radio frequency identification method for moving an object according to claim 8, wherein when the second radio frequency identification reader of step (c) first reads the first radio frequency identification tag, determining that the object is moved from a second direction Move in a first direction. The method of claim 1, wherein the first direction is relative to the second direction, and the second direction is selected from the group consisting of: front, back, left, and right. The method for radio frequency identification of an object moving direction according to claim 1, wherein the step (c) reads the second radio frequency identification tag by using a first radio frequency identification reader and a second radio frequency identification reader. The radio frequency identification method for moving an object according to claim 13, wherein when the first radio frequency identification reader of step (c) first reads the second radio frequency identification tag, determining that the object is from a first direction Move in a second direction. The method of claim 14, wherein the second direction is relative to the first direction, and the first direction is selected from the group consisting of: front, back, left, and right. The radio frequency identification method of the object moving direction according to claim 13, wherein when the second radio frequency identification reader of the step (c) first reads the second radio frequency identification tag, determining that the object is moved from a second direction Move in a first direction. The method for radio frequency identification of an object moving direction according to claim 16, wherein the method The first direction is relative to the second direction, and the second direction is selected from the group consisting of: front, back, left, and right. The method for radio frequency identification of an object moving direction according to claim 1, wherein the first horizontal polarized wave and the second horizontal polarized wave are formed around the object to form an omnidirectional radiated wave. The radio frequency identification method for moving an object according to claim 1, wherein a length direction of the first dipole antenna is parallel to a length direction of the second dipole antenna. A radio frequency identification device for moving an object, comprising: a first radio frequency identification tag disposed on a first side surface of an object, the first radio frequency identification tag having a first coupling antenna, the first dipole antenna Generating a first horizontally polarized wave, the radiation direction of the first horizontally polarized wave is perpendicular to the length direction of the first dipole antenna, and the length direction of the first dipole antenna is perpendicular to the moving direction of the object; The RFID tag is disposed on a second side surface of the object, the second side surface is opposite to the first side surface, the second RFID tag has a second coupling antenna, and the second coupling antenna is Generating a second horizontally polarized wave having a radiation direction perpendicular to a length direction of the second dipole antenna, and a length direction of the second dipole antenna being perpendicular to a moving direction of the object; and at least one The radio frequency identification reader is configured to read at least one of the group of the first radio frequency identification tag and the second radio frequency identification tag to determine an actual moving direction of the object. The object moving direction radio frequency identification device according to claim 20, wherein the The first radio frequency identification tag and the second radio frequency identification tag respectively have a first identification code and a second identification code, and the first identification code is different from the second identification code. The apparatus of claim 20, wherein the radio frequency identification reader reads the first radio frequency identification tag and the second radio frequency identification tag, and judges according to different signal strengths of the two tags. The actual direction of movement of the object. The apparatus of claim 22, wherein the response strength of the first radio frequency identification tag is greater than the response strength of the second radio frequency identification tag as the object is from a first direction to a second The judgment condition of the direction movement. The object moving direction radio frequency identification device according to claim 23, wherein the second direction is opposite to the first direction, and the first direction is selected from the group consisting of: front, back, left, and right. The apparatus of claim 22, wherein the response strength of the first radio frequency identification tag is less than the response strength of the second radio frequency identification tag as the object is from a second direction to a first The judgment condition of the direction movement. The object moving direction radio frequency identification device according to claim 25, wherein the first direction is opposite to the second direction, and the second direction is selected from the group consisting of: front, back, left, and right. The object movement direction radio frequency identification device according to claim 20, comprising a first radio frequency identification reader and a second radio frequency identification reader, the first radio frequency identification reader and the second radio frequency identification reader Reading the first Radio frequency identification tag. The object movement direction radio frequency identification device according to claim 27, wherein the first radio frequency identification reader first reads the first radio frequency identification tag as the object moves from a first direction to a second direction. Analyzing conditions. The object moving direction radio frequency identification device of claim 28, wherein the second direction is relative to the first direction, and the first direction is selected from the group consisting of: front, back, left, and right. The apparatus of claim 27, wherein the second radio frequency identification reader first reads the first radio frequency identification tag as the object moves from a second direction to a first direction. Analyzing conditions. The object moving direction radio frequency identification device of claim 30, wherein the first direction is relative to the second direction, and the second direction is selected from the group consisting of: front, back, left, and right. The object movement direction radio frequency identification device according to claim 20, comprising a first radio frequency identification reader and a second radio frequency identification reader, the first radio frequency identification reader and the second radio frequency identification reader The second radio frequency identification tag is read. The apparatus of claim 32, wherein the first radio frequency identification reader first reads the second radio frequency identification tag as the object moves from a first direction to a second direction. Analyzing conditions. The object moving direction radio frequency identification device of claim 33, wherein the second direction is relative to the first direction, and the first direction is selected from the group consisting of: front, back, left, and right. The object moving direction radio frequency identification device according to claim 32, wherein the The second RFID reader first reads the second RFID tag as a judgment condition that the object moves from a second direction to a first direction. The object moving direction radio frequency identification device of claim 35, wherein the first direction is relative to the second direction, and the second direction is selected from the group consisting of: front, back, left, and right. The object movement direction radio frequency identification device according to claim 20, wherein the first horizontal polarization wave and the second horizontal polarization wave are formed around the object to form an omnidirectional radiation wave. The object movement direction radio frequency identification device according to claim 20, wherein a length direction of the first coupling antenna is parallel to a length direction of the second coupling antenna. A control unit entry and exit control system includes: at least one control entrance and exit; a plurality of objects respectively disposed on each of the entry and exit personnel to pass through the control entrance and exit; at least one object moving direction radio frequency identification device, comprising: a plurality of An RFID tag is respectively disposed on a first side surface of each of the objects, each of the first RFID tags having a first coupling antenna, and each of the first antennas can generate a first horizontally polarized wave The radiation direction of each of the first horizontally polarized waves is perpendicular to the length direction of each of the first decoupling antennas, and the length direction of each of the first decoupling antennas is perpendicular to the moving direction of each of the objects; and the plurality of second radio frequency identification tags Provided respectively on a second side surface of each of the objects, the second side surface being opposite to the first side surface, Each of the second radio frequency identification tags has a second dipole antenna, and each of the second dipole antennas generates a second horizontally polarized wave, and the second horizontal polarized wave has a radiation direction perpendicular to each of the second decoupling poles. The length direction of the antenna, and the length direction of each of the second antennas is perpendicular to the moving direction of the object; and at least one RFID reader is disposed on one side of the control port for reading each of the a radio frequency identification tag and at least one of the groups of the second radio frequency identification tags; and a system server electrically connected to the radio frequency identification reader of the object moving direction radio frequency identification device The tag information read by the RFID reader is analyzed and the actual moving direction of each object is determined. The control unit personnel access control system of claim 39, wherein each of the first radio frequency identification tag and each of the second radio frequency identification tags respectively have a first identification code and a second identification code, and each of the first identification codes It is different from each of the second identification codes. The control area personnel entering and leaving the control system as claimed in claim 39 further includes a wiring station, and the system server and the radio frequency identification reader are connected to the wiring station. The control area personnel entering and leaving the control system as claimed in claim 39 further includes at least one electronic control door installed at the control entrance. The control area personnel entering and leaving the control system as described in claim 42 further includes at least one sensor, and the sensor is mounted on the electronic control door. The control area personnel entering and leaving the control system as claimed in claim 39, wherein the object moving direction radio frequency identification device comprises a first radio frequency identification reader and A second RFID reader, the first RFID reader and the second RFID reader are respectively disposed on two sides of the regulatory entrance. The control area personnel entering and leaving the control system as claimed in claim 39, wherein each of the first horizontal polarization wave and each of the second horizontal polarization waves form an omnidirectional radiation wave around each of the objects. The control area personnel entering and leaving the control system as described in claim 39, wherein the length direction of each of the first coupling antennas is parallel to the length direction of each of the second coupling antennas.