WO2023185859A1

WO2023185859A1 - Paper roll identification method and device, label paper roll and label printer

Info

Publication number: WO2023185859A1
Application number: PCT/CN2023/084413
Authority: WO
Inventors: 钮李明
Original assignee: 厦门顶尖电子有限公司
Priority date: 2022-03-30
Filing date: 2023-03-28
Publication date: 2023-10-05
Also published as: TW202337713A; CN114889343A

Abstract

Disclosed is a paper roll identification method, comprising the following steps: S1, arranging at least one gap portion (21) on a paper roll core tube (2) of a paper roll (100) in the circumferential direction of the paper roll core tube (2); and S2, detecting feature information of the gap portion(s) on the paper roll core tube, and comparing the feature information with pre-stored feature information to realize identity recognition of the paper roll. The method can perform automated identity identification on the paper roll, has a simple structure, and is easy to implement. Also disclosed is a paper roll identification device, a label paper roll (100), and a label printer (200).

Description

Paper roll identification method and device, label paper roll and label printer

Technical field

The invention belongs to the field of paper roll identification, and specifically relates to a paper roll identification method and device for a label printer, a label paper roll and a label printer.

Background technique

Printers have been widely used in offices, factories, warehouses, shopping malls and many other places. Printers use a large amount of consumables and need to be replaced frequently. In order to protect their own interests, many printer equipment manufacturers on the market now have mutual communication between their own consumables and printers to identify whether the consumables are their own special consumables, thereby allowing users to purchase the equipment manufacturer's special consumables. Most of the existing consumable identification methods use relatively high-cost RFID tags for communication identification, and some even use microcontroller communication methods for identification (such as HP's ink cartridges with microcontroller communication methods for identification and protection), allowing users to purchase them. Special consumables. However, for label printers, these existing consumable identification methods are not suitable for use on label paper rolls, because the cost of label paper rolls is low, a roll of paper only costs two or three yuan. If RFID tags or even microcontrollers are used, If so, it will cost nearly 10% or more.

Contents of the invention

The object of the present invention is to provide a paper roll identification method and device, a label paper roll and a label printer to solve the above-mentioned technical problems.

In order to achieve the above object, the technical solution adopted by the present invention is: a paper roll identification method, which includes the following steps:

Step S1, set at least one missing portion on the paper roll core along its circumferential direction;

Step S2: Detect the characteristic information of the missing part on the paper roll core, and compare it with the pre-stored characteristic information to realize the identity recognition of the paper roll.

Furthermore, in step S1, the number of missing parts is multiple, and the plurality of missing parts are arranged at intervals along the circumferential direction of the paper roll core.

Further, the missing part is a notch or a through hole.

Furthermore, step S1 specifically includes: providing at least one missing portion along the circumferential direction on both ends of the paper roll core, and the characteristic information of the missing portions on both ends of the paper roll core is the same.

Further, in step S2, a reflective photoelectric sensor is used to detect the characteristic information of the missing portion on the paper roll core. The reflective photoelectric sensor is arranged close to the inner surface of the paper roll core.

Furthermore, the characteristic information includes one or a combination of one or more of the number, size and spacing between adjacent missing parts.

Furthermore, the number of the reflective photoelectric sensors is multiple, and the multiple reflective photoelectric sensors are arranged at intervals along the circumferential direction of the paper roll core.

Furthermore, the number of the missing parts is multiple, the multiple missing parts have the same shape and are evenly spaced along the circumferential direction of the paper roll core, and the plurality of reflective photoelectric sensors are arranged so that when some of the reflective photoelectric sensors When corresponding to each missing part, at least one reflective photoelectric sensor is disposed in a misaligned manner with all the missing parts.

The invention also provides a label paper roll, which includes a paper roll core and label paper wound around it to form a roll. The paper roll core is provided with at least one missing portion along its circumferential direction, and the missing portion forms The characteristic information is used to detect the characteristic information of the missing part through detection means to identify the label paper roll.

Further, the characteristic information formed by the missing part is consistent with the characteristic information pre-stored in the detection means.

Further, the missing portion formation characteristic information includes: one or a combination of one or more of the number, size, and spacing between adjacent missing portions.

Further, the number of the missing portions is multiple, and the plurality of missing portions are arranged at intervals along the circumferential direction of the paper roll core.

Furthermore, the plurality of missing portions have the same shape and are evenly spaced along the circumferential direction of the paper roll core.

Further, the missing part is a notch or a through hole.

Furthermore, at least one missing portion is provided on both ends of the paper roll core along its circumferential direction, and the characteristic information of the missing portions on both ends of the paper roll core is the same.

The invention also provides a paper roll identification device for identifying the above-mentioned label paper roll, including a detection sensor and a processing module. The detection sensor is used to detect the characteristic information of the missing part of the paper roll core and transmit it to the processing module. , the processing module compares the detected feature information with the pre-stored feature information to identify the label paper roll.

Further, the detection sensor is implemented by a reflective photoelectric sensor, which is arranged close to the inner surface of the paper roll core.

Furthermore, the reflective photoelectric sensor is arranged on the outer peripheral surface of the paper roll placement shaft, and the paper roll core tube is rotatably sleeved on the paper roll placement shaft.

Furthermore, the number of the reflective photoelectric sensors is multiple, and the multiple reflective photoelectric sensors are arranged at intervals along the circumferential direction on the outer peripheral surface of the paper roll placement shaft.

Furthermore, when the number of missing parts is multiple and the shapes of the plurality of missing parts are the same and evenly spaced along the circumferential direction of the paper roll core, multiple reflective photoelectric sensors are arranged such that when some of the reflective photoelectric sensors When they all correspond to one missing part respectively, at least one reflective photoelectric sensor is disposed in a misaligned manner with all the missing parts.

The invention also provides a label printer, which includes a paper roll placement shaft for sleeved label paper rolls, and the above-mentioned paper roll identification device.

Further, when the label paper roll is loaded into the label printer, the identification device performs identification on the label paper roll. When it is recognized that the paper roll core of the label paper roll has at least one missing portion along its circumferential direction. When identifying the characteristic information of the label paper roll, the processing module provides a first feedback measure; when it is recognized that the paper roll core of the label paper roll does not have characteristic information of at least one missing portion along its circumferential direction, the processing module provides a second feedback measure.

Furthermore, the identification includes identification in the initial state when the label paper roll is loaded into the label printer and/or continuous identification during the rotation of the label paper roll driven by the label printer, until the identification is successful, that is, the label paper is identified. The characteristic information is the same as the pre-stored characteristic information.

Beneficial technical effects of the present invention:

The invention can realize automatic identity recognition of paper rolls, has a simple structure, is easy to implement, has low cost, and greatly improves market competitiveness.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings needed to describe the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. Those of ordinary skill in the art can also obtain other drawings based on these drawings without exerting creative efforts.

Figure 1 is a partial structural diagram of a label printer according to Embodiment 1 of the present invention;

Figure 2 is another partial structural diagram of the label printer according to Embodiment 1 of the present invention;

Figure 3 is a structural diagram of Figure 2 with the label paper omitted;

Figure 4 is another partial structural diagram of the label printer according to Embodiment 1 of the present invention;

Figure 5 is a structural diagram of a label paper roll according to Embodiment 1 of the present invention;

Figure 6 is a schematic diagram of the waveform detected by the reflective photoelectric sensor in Embodiment 1 of the present invention;

Figure 7 is a structural diagram of a paper roll core according to Embodiment 2 of the present invention;

Figure 8 is a structural diagram of a paper roll core according to Embodiment 3 of the present invention;

Figure 9 is a structural diagram of a paper roll core according to Embodiment 4 of the present invention;

Figure 10 is a partial structural diagram of a label printer according to Embodiment 5 of the present invention;

Figure 11 is a partial structural diagram of a label printer from another angle according to Embodiment 5 of the present invention;

Figure 12 is a schematic structural diagram of the paper roll core on the paper roll placement sleeve according to Embodiment 5 of the present invention;

Figure 13 is a schematic structural diagram of the paper roll core of Figure 12 rotating at a certain angle;

Figure 14 is a schematic diagram of the waveform detected by the reflective photoelectric sensor in Embodiment 5 of the present invention;

Figure 15 is a structural diagram of a paper roll identification device according to Embodiment 6 of the present invention.

Figure 16 is a method flow chart of Embodiment 7 of the present invention.

Detailed ways

To further explain various embodiments, the present invention provides drawings. These drawings are part of the disclosure of the present invention, and are mainly used to illustrate the embodiments, and can be used to explain the operating principles of the embodiments in conjunction with the relevant descriptions in the specification. With reference to these contents, those of ordinary skill in the art will be able to understand other possible implementations and advantages of the present invention. The components in the figures are not drawn to scale and similar component symbols are typically used to identify similar components.

The present invention will now be further described with reference to the accompanying drawings and specific embodiments.

Embodiment 1

As shown in Figure 1-5, a label printer includes a printer body 200, a printing mechanism, a paper feeding mechanism 300, a paper cutting mechanism 400, a paper roll placement shaft 4, a paper roll identification device and a label paper roll 100. Printing Mechanism, paper feeding mechanism 300, paper cutting mechanism 400, and paper roll placement shaft 4 are all arranged on the printer body 200. The label paper roll 100 is rotatably placed on the paper roll placement shaft 4. The paper feeding mechanism 300 is used to transport labels. Paper, during the transportation process of label paper, the label paper roll 100 will be driven to rotate on the paper roll placement shaft 4. The printing mechanism is used to print the label paper, and the cutting mechanism 400 is used to cut the label paper roll into appropriate labels. For more specific structures, reference can be made to existing label printers. This is not an improvement point of the present invention and will not be described further.

The label paper roll 100 includes a paper roll core 2 and a label paper 1 wound around it to form a roll. The paper roll core 2 is provided with at least one missing portion 21 along its circumferential direction, and the missing portion 21 forms characteristic information. The characteristic information formed by the missing part 21 is consistent with the characteristic information pre-stored in the detection means, and is used to detect the characteristic information of the missing part 21 by the detection means to identify the label paper roll 100 .

Preferably, in this specific embodiment, the missing portion 21 is a notch 211, which is provided on the end of the paper roll core 2. The structure is simple and easy to process.

In this specific embodiment, the notch 211 has a square structure, which is simple in structure and easy to process. However, it is not limited to this. In some embodiments, the notch 211 can also be a "U" shape, an arc shape, or other shapes.

Of course, in some embodiments, the missing portion 21 may also be a through hole, such as a circular through hole, a square through hole, a diamond through hole, etc. Both the notch 211 and the through hole will change the interface of the circumferential surface of the paper roll core 2 and form characteristic information, which can be detected by corresponding detection means, thereby realizing the detection of the characteristic information through detection means and identification.

In this specific embodiment, the number of notches 211 is multiple, specifically eight, and the eight notches 211 are arranged at intervals along the circumferential direction of the paper roll core 2 . Of course, in some embodiments, the number of notches 211 may also be less than 8, such as 1, 2, etc., or more than 8, etc.

Preferably, in this embodiment, the eight notches 211 have the same shape and are evenly spaced along the circumferential direction of the paper roll core 2, making the manufacturing simpler and easier to identify. But it is not limited to this. In some embodiments, the shapes of the eight notches 211 may be different, and the eight notches 211 may also be arranged at uneven intervals.

Furthermore, in this specific embodiment, eight notches 211 are provided at both ends of the paper roll core 2, and the eight notches 211 at both ends of the paper roll core 2 are arranged in mirror symmetry, that is, the paper roll core The eight notches 211 on both ends of the drum 2 have exactly the same characteristic information, so that when replacing and installing the label paper roll 100, there is no need to identify the orientation of the label paper roll 100, making it more convenient to use. Of course, in some embodiments, only eight notches 211 may be provided on one end of the paper roll core 2 .

The paper roll identification device is used to identify the label paper roll 100 and includes a detection sensor and a processing module (not shown in the figure). The detection sensor is used to detect the characteristic information of the missing part 21 of the paper roll core 2 and transmit it to the processing module. , the processing module compares the detected characteristic information with the pre-stored characteristic information to realize the identity recognition of the label paper roll 100 .

Preferably, in this specific embodiment, the detection sensor is implemented by a reflective photoelectric sensor 3 . The number of the reflective photoelectric sensor 3 is one, which has a simple structure, low cost and good detection effect, but is not limited to this.

The reflective photoelectric sensor 3 is arranged on the outer peripheral surface of the paper roll placement shaft 4 and corresponds to the rotation path of the missing portion 21 at one end of the paper roll core 2 as the paper roll core 2 rotates, as shown in Figure 3 .

Preferably, in this specific embodiment, the reflective photoelectric sensor 3 is disposed on the outer peripheral surface of the fixed end of the paper roll placement shaft 4 for detecting the inner surface of the paper roll core 2 sleeved on the paper roll placement shaft 4 . The characteristic information of the missing portion 21 at the end has a simple structure and is easy to implement, but is not limited to this.

Of course, in some embodiments, other methods such as ultrasonic waves and micro switches can also be used to detect the characteristic information of the missing portion 21 on the paper roll core 2 .

In this specific embodiment, the processing module is implemented by a processor of a label printer, which has a simple structure, is easy to implement, and has low cost, but is not limited to this.

During the printing process of the label printer, the paper feeding mechanism 300 transports the label paper, and then drives the paper roll core 2 to rotate on the paper roll placement shaft 4. As the paper roll core 2 rotates, the reflective photoelectric sensor 3 will repeatedly face the label paper. The missing part 21 is the complete part of the paper roll core 2, so that the pulse waveform with high and low changes is detected and transmitted to the processing module. After filtering and shaping, as shown in Figure 6, the processing module compares the pulse waveform with the pre-stored pulse waveform. By comparison, it is judged whether the waveforms of the two are the same, thereby realizing the identification of the label paper roll 100. If the waveforms of the two are the same, the label paper roll 100 is identified as a special paper roll, and the label printer can continue to print normally ( First feedback measure); otherwise, the label paper roll 100 is identified as a non-dedicated paper roll, and the label printer can be controlled to be unable to print normally, and an alarm prompt can be issued or stored in the processing module for archiving (second feedback measure).

Determining whether the pulse waveform is the same as the pre-stored pulse waveform includes determining the number of pulses (corresponding to the number of missing parts 21), the width of the pulses (corresponding to the size of the missing parts 21), and the distance between adjacent pulses (corresponding to (the distance between adjacent missing parts 21) is the same, that is, the characteristic information of the missing parts 21 in this embodiment also includes the number and size of the missing parts 21 and the distance between adjacent missing parts, so that the identification is more accurate.

The detected pulse waveform will change with changes in the number and size of the missing portions 21 and the spacing between adjacent missing portions.

Of course, in some embodiments, the pulse waveform when the paper roll core 2 rotates for one revolution can also be extracted, and the number of pulses can be calculated to obtain the number of missing parts 21, and compared with the pre-stored number of missing parts, the second judgment can be made. Whether the waveforms of the two persons are the same are used for identification. One rotation of the paper roll core 2 can be calculated by converting the length of the label paper conveyed by the paper transport mechanism 300, or an additional detection device can be provided to directly detect the number of rotations of the paper roll core 2, etc.

Of course, in other embodiments, the width of the pulse can also be calculated based on the pulse waveform, and then the size of the missing portion 21 can be calculated accordingly, and compared with the pre-stored size of the missing portion to determine whether the waveforms of the two are the same for identity recognition. .

Of course, in other embodiments, the width of the pulse and the spacing between adjacent pulses can also be calculated through the pulse waveform, and then the size of the missing portion 21 and the spacing between adjacent missing portions can be obtained through corresponding conversions, and Compare it with the pre-stored missing part size and the distance between adjacent missing parts to determine whether the waveforms of the two are the same for identity recognition.

Embodiment 2

As shown in Figure 7, the main difference between this embodiment and Embodiment 1 is that the shape of the notch 212 in this embodiment is roughly "U" shaped, and there is only one number arranged along the circumferential direction of the paper roll core 2. That is, in this embodiment, the paper roll core 2 A notch 212 is provided at both ends.

Embodiment 3

As shown in FIG. 8 , the main difference between this embodiment and Embodiment 1 is that the shape of the notch 213 in this embodiment is roughly “V” shaped.

Embodiment 4

As shown in FIG. 9 , the main difference between this embodiment and Embodiment 1 is that the missing part 21 in this embodiment is a through hole 214 . Preferably, the through hole 214 is a circular through hole, which is easy to process, but is not limited thereto. In some embodiments, the through hole 214 can also be in other shapes such as square, triangle, or the like.

In this embodiment, the through holes 214 are respectively provided at both ends of the paper roll core 2 , but it is not limited thereto. In some embodiments, the through holes 214 can also be provided in the middle area of the paper roll core 2 .

Embodiment 5

As shown in Figures 10-13, the main difference between this embodiment and Embodiment 1 is that the number of reflective photoelectric sensors 3 in this embodiment is five, and the five reflective photoelectric sensors 3 are arranged at intervals along the circumferential direction. The paper roll is placed on the outer peripheral surface of the shaft 4.

When the five reflective photoelectric sensors 3 are arranged so that the four reflective photoelectric sensors 3 correspond to each of the missing parts 21, the other reflective photoelectric sensor 3 is misaligned with all the missing parts 21, as shown in Figure 12. shows, as long as the paper roll core 2 rotates at a certain angle (such as 45 degrees, no need to rotate for one turn), it can be detected that 4 of the 5 reflective photoelectric sensors are high level, as shown in Figure 12 (or low level , as shown in Figure 13), one is low level (or high level), that is, the 1110 or 0001 signal is detected. Therefore, if this signal is detected, it will be identified as a special paper roll, so that the paper roll core 2 can be identified without the need for the paper roll core 2 to rotate at least once to achieve identification, so that it is possible to change the label paper. The paper roll 100 can be identified during trial printing. It can even be identified through identification in the initial state when the label paper roll is loaded into the label printer. The identification is more timely and faster; at the same time, in subsequent printing, as the paper roll is As the core cylinder 2 rotates, the five reflective photoelectric sensors 3 will also detect 5 sets of pulse waveforms with high and low changes, as shown in Figure 14 (pulse waveforms after filtering and shaping), and then compare the 5 pulse waveforms with the pre-stored Compare the five sets of pulse waveforms to determine whether the waveforms of the two are the same, thereby realizing the identification of the paper roll core 2 again, forming a double-layer identification, and improving the reliability of the identification.

Of course, in some embodiments, when three reflective photoelectric sensors 3 correspond to one missing portion 21 respectively, the other two reflective photoelectric sensors 3 and all the missing portions 21 may be disposed in a misaligned manner, etc.

Embodiment 6

As shown in Figure 15, the main difference between this embodiment and Embodiment 5 is that the number of reflective photoelectric sensors 3 in this embodiment is 2, and the 2 reflective photoelectric sensors 3 are set as one of the reflective photoelectric sensors. When 3 corresponds to a missing part 21, another reflective photoelectric sensor 3 is disposed in a misaligned manner with all the missing parts 21. The identification principle of this embodiment is similar to that of Embodiment 5. For details, please refer to Embodiment 5, which will not be repeated here. Elaborate. Compared with Embodiment 5, this embodiment has a smaller number of reflective photoelectric sensors 3, but accordingly, the identification accuracy and reliability are also reduced.

Embodiment 7

As shown in Figure 16, this embodiment also provides a method for identifying paper rolls applied to the above-mentioned label printer, including the following steps:

In step S1, at least one missing portion is provided on the paper roll core along its circumferential direction.

For a more specific identification process, please refer to the identification process in the above embodiment, which will not be described further.

Of course, in some embodiments, the paper roll identification method of the present invention can also be used in toilet paper paper feeders to identify toilet paper rolls to ensure the use of dedicated toilet paper rolls, ensure hygiene and safety, etc.

The invention can realize automatic identity recognition of paper rolls, has a simple structure, is easy to implement, has low cost and greatly improves the efficiency of paper rolls. market competitiveness.

Although the invention has been specifically shown and described in connection with the preferred embodiments, it will be apparent to those skilled in the art that the invention can be modified in form and detail without departing from the spirit and scope of the invention as defined by the appended claims. Various changes are made within the scope of the present invention.

Claims

A paper roll identification method, characterized by including the following steps:

Step S1, set at least one missing portion on the paper roll core along its circumferential direction;

Step S2: Detect the characteristic information of the missing part on the paper roll core, and compare it with the pre-stored characteristic information to realize the identity recognition of the paper roll.
The paper roll identification method according to claim 1, characterized in that in step S1, the number of missing parts is multiple, and the plurality of missing parts are arranged at intervals along the circumferential direction of the paper roll core.
The paper roll identification method according to claim 1, wherein the missing portion is a notch or a through hole.
The paper roll identification method according to claim 3, wherein step S1 specifically includes: providing at least one missing portion on both ends of the paper roll core along its circumferential direction, and the paper roll core The missing parts at both ends have the same characteristic information.
The paper roll identification method according to claim 1, characterized in that: in step S2, a reflective photoelectric sensor is used to detect the characteristic information of the missing part on the paper roll core, and the reflective photoelectric sensor is arranged close to The position of the inner surface of the paper roll core.
The paper roll identification method according to claim 5, wherein the characteristic information includes one or a combination of one or more of the number, size and spacing between adjacent missing parts.
The paper roll identification method according to claim 5, characterized in that the number of the reflective photoelectric sensors is multiple, and the plurality of reflective photoelectric sensors are arranged at intervals along the circumferential direction of the paper roll core.
The paper roll identification method according to claim 7, characterized in that: there are multiple missing parts, the plurality of missing parts have the same shape and are evenly spaced along the circumferential direction of the paper roll core, and the plurality of reflective parts have the same shape. The reflective photoelectric sensors are arranged such that when some of the reflective photoelectric sensors correspond to each missing part, at least one reflective photoelectric sensor is disposed in a misaligned manner with all the missing parts.
A label paper roll, including a paper roll core and label paper wound around it to form a roll, characterized in that: the paper roll core is provided with at least one missing portion along its circumferential direction, and the missing portion forms a feature Information is used to detect the characteristic information of the missing part through detection means to identify the label paper roll.
The label paper roll according to claim 9, wherein the missing portion formation characteristic information is consistent with the characteristic information pre-stored in the detection means.
The label paper roll according to claim 9, wherein the missing portion formation characteristic information includes one or a combination of one or more of the number, size, and spacing between adjacent missing portions.
The label paper roll according to claim 9, characterized in that the number of the missing parts is multiple, and the plurality of missing parts are arranged at intervals along the circumferential direction of the paper roll core.
The label paper roll according to claim 12, wherein the plurality of missing portions have the same shape and are evenly spaced along the circumferential direction of the paper roll core.
The label paper roll according to claim 9, wherein the missing portion is a notch or a through hole.
The label paper roll according to claim 9, characterized in that: both ends of the paper roll core are provided with at least one missing portion along its circumferential direction, and the missing portions on both ends of the paper roll core are The characteristic information of the parts is the same.
A paper roll identification device, characterized in that it is used to identify the label paper roll according to any one of claims 9-15, including a detection sensor and a processing module, and the detection sensor is used to detect the missing part of the paper roll core. The characteristic information is transmitted to the processing module, and the processing module compares the detected characteristic information with the pre-stored characteristic information to identify the label paper roll.
The paper roll identification device according to claim 16, characterized in that the detection sensor is implemented by a reflective photoelectric sensor, and the reflective photoelectric sensor is arranged close to the inner surface of the paper roll core.
The paper roll identification device according to claim 17, characterized in that: the reflective photoelectric sensor is provided with On the outer peripheral surface of the paper roll placement shaft, the paper roll core tube is rotatably sleeved on the paper roll placement shaft.
The paper roll identification device according to claim 18, characterized in that: the number of the reflective photoelectric sensors is multiple, and the plurality of reflective photoelectric sensors are arranged at intervals along the circumferential direction on the outer peripheral surface of the paper roll placement shaft. .
The identification device of a paper roll according to claim 19, characterized in that when the number of missing parts is multiple and the shapes of the plurality of missing parts are the same and are evenly spaced along the circumferential direction of the paper roll core, the plurality of reflections The reflective photoelectric sensor is arranged such that when some of the reflective photoelectric sensors correspond to each missing part, at least one reflective photoelectric sensor is disposed in a misaligned manner with all the missing parts.
A label printer, characterized in that it includes a paper roll placement shaft for sleeved label paper rolls, and also includes the paper roll identification device according to any one of claims 16-20.
The label printer according to claim 21, characterized in that: after the label printer loads the label paper roll, the identification device performs identity identification on the label paper roll. When the paper roll core of the label paper roll is identified, When there is characteristic information of at least one missing portion along its circumferential direction, the processing module provides a first feedback measure; when it is recognized that the paper roll core of the label paper roll does not have the characteristic of at least one missing portion along its circumferential direction. When receiving information, the processing module provides a second feedback measure.