Radio frequency gate system followed by parallel movement of antenna, control method and electronic equipment

Abstract

The invention discloses an antenna parallel movement following radio frequency door system, a control method and electronic equipment, and relates to the technical field of radio frequency identification, the radio frequency door system comprises a conveyor belt and a radio frequency door; the conveyor belt passes through the radio frequency door; a guide rail and a stepping motor are arranged on the side edge of the radio frequency door, a movable support is arranged on the guide rail, and a radio frequency antenna is arranged on the movable support. The conveyor belt is used for conveying the to-be-identified measuring instrument box to move from the entrance position of the radio frequency door to the exit position of the radio frequency door; the stepping motor is used for driving the movable bracket to move on the guide rail so as to drive the radio frequency antenna to move between the entrance position and the exit position from the radio frequency door; and the radio frequency antenna is used for identifying the electronic tag on the measuring instrument in the to-be-identified measuring instrument box in the process of parallel movement with the to-be-identified measuring instrument box. According to the invention, the technical problem of low identification accuracy caused by short antenna identification time in the prior art is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency identification, and in particular to a radio frequency gate system and control method and electronic equipment for parallel movement following of an antenna. Background Art

[0002] Measuring instruments entering and leaving the warehouse must complete the automatic entry of information through the radio frequency gate, form an electronic ledger, and then enter the intelligent storage warehouse through the conveyor belt. When batch measuring instruments enter the radio frequency gate, the radio frequency gate identifies the electronic tags contained in the measuring instruments. The measuring instruments that are successfully identified will then enter the storage warehouse. Measuring instruments that are unsuccessful in identification will enter the single box verification channel through the rejection channel. If the verification is successful, they will enter the palletizer and wait to enter the storage warehouse. If the verification is unsuccessful, the single box will be rejected and wait for manual processing. The radio frequency identification accuracy rate of measuring instruments entering and leaving the warehouse is the proportion of the number of measuring instruments successfully identified by the radio frequency gate to the total number of identified measuring instruments.

[0003] Since the recognition accuracy of the RF gate for the measuring instrument is positively correlated with the recognition time of the antenna for the measuring instrument, and the traditional RF gate uses a fixed antenna to identify a mobile single-box measuring instrument, resulting in a shorter recognition time, which in turn leads to a lower recognition accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a radio frequency gate system and control method and electronic device for parallel movement following of an antenna in order to solve at least one of the above technical problems.

[0005] In a first aspect, a radio frequency gate system with an antenna moving in parallel and following, comprises: a conveyor belt and a radio frequency gate; the conveyor belt is arranged to pass through the radio frequency gate; a guide rail and a stepper motor are arranged on the side of the radio frequency gate, a mobile bracket is arranged on the guide rail, and a radio frequency antenna is arranged on the mobile bracket; the conveyor belt is used to convey a box of measuring instruments to be identified from an entrance position of the radio frequency gate to an exit position of the radio frequency gate; the stepper motor is used to drive the mobile bracket to move on the guide rail, so as to drive the radio frequency antenna to move between the entrance position and the exit position of the radio frequency gate; the radio frequency antenna is used to identify the electronic tags on the measuring instruments in the measuring instrument box to be identified during the process of moving parallel to the measuring instrument box to be identified.

[0006] Furthermore, the moving direction of the movable bracket is parallel to the conveying direction of the conveyor belt;.

[0007] Furthermore, light sensors are provided at the entrance and exit of the radio frequency door for detecting whether the metering instrument box to be identified enters and exits the radio frequency door.

[0008] Furthermore, the forward moving speed of the movable bracket on the guide rail is the same as the conveying speed of the conveyor belt.

[0009] Furthermore, the speed at which the movable bracket moves in the reverse direction on the guide rail is greater than the conveying speed of the conveyor belt.

[0010] In a second aspect, a control method for a radio frequency gate system with parallel movement and following of the antenna as described in the first aspect comprises: after detecting that a box of measuring instruments to be identified enters the radio frequency gate, controlling a mobile bracket to follow the movement of the measuring instruments to be identified; controlling the radio frequency antenna to identify the electronic tags on the measuring instruments in the box of measuring instruments to be identified; and after the radio frequency antenna completes the identification of the box of measuring instruments to be identified, or after the mobile bracket moves to the exit position of the radio frequency gate, controlling the mobile bracket to return to the entrance position of the radio frequency gate.

[0011] Furthermore, after the mobile bracket moves to the exit position of the radio frequency door, if the radio frequency antenna has not completed the identification of the measuring instrument box to be identified, the movement of the mobile bracket is stopped.

[0012] In a third aspect, an electronic device comprises: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in the second aspect when executing the computer program.

[0013] The present invention provides a radio frequency gate system and control method and electronic equipment with parallel movement and following of antennas, which can effectively prolong the recognition time of the antenna of the radio frequency gate to a single-box measuring instrument, thereby improving the recognition accuracy of the radio frequency gate. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0015] Figure 1 A side view of a radio frequency gate system for parallel movement and following of an antenna provided by an embodiment of the present invention;

[0016] Figure 2 A schematic diagram of the architecture of a radio frequency gate provided by an embodiment of the present invention;

[0017] Figure 3 A front view of a radio frequency gate system for parallel movement and following of an antenna provided by an embodiment of the present invention;

[0018] Figure 4 A flow chart of a control method of a radio frequency gate system for parallel movement and following of an antenna provided by an embodiment of the present invention;

[0019] Figure 5 A flowchart of another method for controlling a radio frequency gate system with parallel movement and following of antennas provided in an embodiment of the present invention.

[0020] In the figure: 1. conveyor belt, 2. radio frequency door, 3. guide rail, 4. stepper motor, 5. mobile bracket, 6. radio frequency antenna, 7. measuring instrument box to be identified, 8. light sensor. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] Embodiment 1

[0023] Figure 1 FIG. 1 is a side view of a radio frequency gate system for parallel movement and following of an antenna according to an embodiment of the present invention. Figure 1 As shown, the system includes: a conveyor belt 1 and a radio frequency gate 2; the conveyor belt 1 is arranged to pass through the radio frequency gate 2; a guide rail 3 and a stepper motor 4 are arranged on the side of the radio frequency gate 2, a movable bracket 5 is arranged on the guide rail 3, and a radio frequency antenna 6 is arranged on the movable bracket 5.

[0024] Specifically, the conveyor belt 1 is used to convey the measurement instrument box 7 to be identified from the entrance position of the radio frequency door 2 to the exit position of the radio frequency door 2. The measurement instrument box 7 to be identified includes a plurality of measurement instruments to be identified, and each measurement instrument to be identified is provided with an electronic tag.

[0025] The stepper motor 4 is used to drive the movable bracket 5 to move forward on the guide rail 3 to drive the RF antenna 6 to move from the entrance position of the RF door 2 to the exit position of the RF door 2; wherein the moving direction of the movable bracket 5 is parallel to the conveying direction of the conveyor belt 1.

[0026] The radio frequency antenna 6 is used to identify the electronic tags on the measuring instruments in the measuring instrument box 7 to be identified while moving parallel to the measuring instrument box 7 to be identified.

[0027] Figure 2 FIG. 1 is a schematic diagram of the architecture of a radio frequency gate provided according to an embodiment of the present invention. Figure 2 As shown, the stepping motor 4 drives the moving bracket 5 to move on the guide rail 3 through a belt and a pulley.

[0028] In the embodiment of the present invention, the measuring instruments pass through the radio frequency gate one by one in the turnover box in units of stacks to automatically enter information, and only one stack of measuring instruments enters the radio frequency gate at a time.

[0029] Preferably, the forward moving speed of the mobile bracket 5 on the guide rail 3 is the same as the conveying speed of the conveyor belt 1, so as to ensure that the radio frequency antenna 6 on the mobile bracket 5 can synchronously follow the movement of the measuring instrument box 7 to be identified.

[0030] Figure 3 1 is a front view of a radio frequency gate system for parallel movement and following of an antenna according to an embodiment of the present invention. Figure 3 As shown, light sensors 8 are respectively arranged at the entrance and exit of the radio frequency door 2 to detect whether the metering instrument box 7 to be identified enters and exits the radio frequency door.

[0031] Specifically, the stepper motor 4 is also used to drive the movable bracket 5 to move in the reverse direction on the guide rail 3, so as to drive the RF antenna 6 to return from the exit position of the RF door 2 to the entrance position of the RF door 2. Preferably, the speed at which the movable bracket 5 moves in the reverse direction on the guide rail 3 is greater than the conveying speed of the conveyor belt 1.

[0032] Specifically, when the light sensor at the entrance of the RF gate 2 detects that the measuring instrument box 7 to be identified enters the RF gate 2, the stepper motor 4 is started to drive the mobile bracket 5 to move with the measuring instrument box 7 to be identified. At the same time, the RF antenna 6 identifies the electronic tag in the measuring instrument box 7 to be identified; when the light sensor at the exit of the RF gate 3 detects that the measuring instrument box 7 to be identified is transmitted out of the RF gate 2, the identification process ends, and the stepper motor 4 is reversed to drive the mobile bracket 5 to return to the initial position, waiting for the next measuring instrument box 7 to be identified to enter.

[0033] Optionally, in the embodiment of the present invention, the length L1 of the RF gate is 1.8 m. To ensure the recognition accuracy, the recognition time is at least 6 seconds, that is, the shortest time for the metering instrument box 7 to be identified to pass through the RF gate is 6 seconds. Therefore, the conveying line speed of the RF gate 2 is a fixed value Vs:

[0034] Vs=1.8m / 6s=0.3m / s.

[0035] If the antenna speed recognition time is to be maximized, the moving speed of the mobile bracket 5 should be the same as the conveyor belt speed, that is, 0.3m / s. Due to the limitation of the stepper motor, its maximum movement speed is 3m / s. In order to maximize the efficiency of storage, the return speed V1 of the mobile bracket 5 is set to the maximum speed of 3m / s.

[0036] Among them, the transmission distance L2 between two adjacent measuring instrument boxes 7 to be identified is:

[0037] L2=L1*Vs / V1+L1=(1.8 / 3)*0.3m+1.8m=1.96m.

[0038] The relevant parameters of the RF gate can be determined as follows: the distance L2 between the two measuring instrument boxes 7 to be identified is 1.96m, the conveyor line speed Vs is 0.3m / s, the RF gate length L1 is 1.8m, and the speed V1 at which the mobile bracket 5 returns to the initial position is 3m / s.

[0039] Embodiment 2

[0040] Figure 4 FIG. 1 is a flow chart of a control method of a radio frequency gate system for antenna parallel movement following according to an embodiment of the present invention. Figure 4 As shown, the method specifically comprises the following steps:

[0041] Step S402, after detecting that the measuring instrument box to be identified enters the radio frequency door, controlling the mobile bracket to move along with the measuring instrument to be identified.

[0042] Step S404: Control the radio frequency antenna to identify the electronic tags on the measuring instruments in the measuring instrument box to be identified.

[0043] Step S406, after the RF antenna completes the identification of the metering instrument box to be identified, or after the mobile bracket moves to the exit position of the RF door, the mobile bracket is controlled to return to the entrance position of the RF door.

[0044] Figure 5 FIG. 1 is a flow chart of another method for controlling a radio frequency gate system for parallel movement and following of antennas according to an embodiment of the present invention. Figure 5 As shown, when the RF antenna follows the tool box to be identified to the travel limit, if the identification has not been completed, the RF antenna is controlled to stop moving to further increase the identification time and avoid the RF antenna returning to the initial position immediately.

[0045] From the above description, it can be seen that the present invention provides a radio frequency gate system with an antenna that moves in parallel and a corresponding control method. By controlling the radio frequency antenna to move in parallel with the box of instruments to be identified, the recognition time of the antenna of the radio frequency gate for a single box of measuring instruments can be effectively extended, thereby improving the recognition accuracy of the radio frequency gate.

[0046] An embodiment of the present invention further provides an electronic device, comprising: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the control method provided in the embodiment of the present invention when executing the computer program.

[0047] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0048] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A radio frequency gate system with parallel movement and following of antennas, characterized in that: include: A conveyor belt and a radio frequency door; the conveyor belt is arranged to pass through the radio frequency door; a guide rail and a stepper motor are arranged on the side of the radio frequency door, a movable bracket is arranged on the guide rail, and a radio frequency antenna is arranged on the movable bracket; The conveyor belt is used to convey the metering instrument box to be identified from the entrance position of the radio frequency door to the exit position of the radio frequency door; The stepper motor is used to drive the movable bracket to move on the guide rail, so as to drive the radio frequency antenna to move between the entrance position and the exit position of the radio frequency door; The radio frequency antenna is used to identify the electronic tags on the measuring instruments in the measuring instrument box to be identified.

2. The radio frequency gate system with parallel movement and following of the antenna according to claim 1 is characterized in that: The moving direction of the movable bracket is parallel to the conveying direction of the conveyor belt.

3. The radio frequency gate system with parallel movement and following of the antenna according to claim 1 is characterized in that: Light sensors are provided at the entrance and exit of the radio frequency door to detect whether the metering instrument box to be identified enters and exits the radio frequency door.

4. The radio frequency gate system with parallel movement and following of the antenna according to claim 1 is characterized in that: The forward moving speed of the movable bracket on the guide rail is the same as the conveying speed of the conveyor belt.

5. The radio frequency gate system with parallel movement and following of the antenna according to claim 1, characterized in that: The speed at which the movable bracket moves in the opposite direction on the guide rail is greater than the conveying speed of the conveyor belt.

6. A control method for a radio frequency gate system with parallel movement and following of an antenna according to any one of claims 1 to 5, characterized in that: include: After detecting that the measuring instrument box to be identified enters the radio frequency door, controlling the mobile bracket to move synchronously with the measuring instrument to be identified; Controlling the radio frequency antenna to identify the electronic tags on the measuring instruments in the measuring instrument box to be identified; After the radio frequency antenna completes the identification of the metering instrument box to be identified, or after the mobile bracket moves to the exit position of the radio frequency door, the mobile bracket is controlled to return to the entrance position of the radio frequency door.

7. The control method of the radio frequency gate system with parallel movement and following of the antenna according to claim 6 is characterized in that: After the mobile bracket moves to the exit position of the radio frequency door, if the radio frequency antenna has not completed the identification of the measuring instrument box to be identified, the movement of the mobile bracket is stopped.

8. An electronic device, characterized in that: include: A memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the control method according to any one of claims 6 to 7 when executing the computer program.

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