CN218630809U - Electronic price tag system, electronic price tag and guide rail device for installing electronic price tag - Google Patents
Electronic price tag system, electronic price tag and guide rail device for installing electronic price tag Download PDFInfo
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- CN218630809U CN218630809U CN202223122306.3U CN202223122306U CN218630809U CN 218630809 U CN218630809 U CN 218630809U CN 202223122306 U CN202223122306 U CN 202223122306U CN 218630809 U CN218630809 U CN 218630809U
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Abstract
The utility model relates to an electron price tag system, electron price tag and guide rail device, guide rail device include the guide rail, along the extending direction head and the tail of guide rail a plurality of positioning electrode of interval setting on the guide rail in proper order to and the first resistance of two adjacent positioning electrode of series connection, and the positioning electrode ground connection of afterbody. The electronic price tag comprises a price tag body, and a power supply positive connecting piece, a power supply negative connecting piece and a conductive contact piece which are arranged on the price tag body, wherein the power supply positive connecting piece and the power supply negative connecting piece are constructed to be used for connecting a power supply, and the power supply positive connecting piece and the conductive contact piece are electrically connected through a second resistor. And the electronic price tag is configured to be installed on the guide rail, and then in a positioning measurement mode, the conductive contact piece is contacted with one positioning electrode, the power supply positive electrode connecting piece outputs a high level and measures the voltage at two ends of the second resistor, and the voltage at two ends of the second resistor is configured to be used for determining whether the price tag body is at a specified target position on the guide rail or not, so that manual check is not needed, and the management cost is greatly reduced.
Description
Technical Field
The present disclosure relates to the field of retail technologies, and in particular, to an electronic price tag system, an electronic price tag, and a guide rail device for installing an electronic price tag.
Background
The electronic price tag system is used as a digitalized infrastructure of the business super retail industry, is copied in the industry in large batch, and is expected to increase the self fine positioning related basic capability of the electronic price tag system through simple low-cost hardware and software upgrading, so that more digitalized value mining of the electronic price tag system hardware in the retail scene is realized.
Referring to fig. 1, a guide rail for mounting an electronic price tag is disposed on each layer of the shelf, so as to display attributes such as price and producing area of a corresponding commodity object on the electronic price tag, where there is a unique correspondence between the electronic price tag and a corresponding commodity, for example, the electronic price tag corresponding to the commodity object 1 is 131.
In general, in a large supermarket or a chain supermarket, a specified target commodity mode is placed at a specified target placement position on a specified target shelf according to market demand, so as to improve the exposure rate and sales of the target commodity. However, in practice, a large amount of labor is required to be consumed to check the target goods which are not placed at the target placement position according to requirements, so that the management cost of a large supermarket and a chain supermarket is increased.
SUMMERY OF THE UTILITY MODEL
The present disclosure provides an electronic price tag system, an electronic price tag, and a guide rail device for mounting the electronic price tag, for solving the technical problems existing in the prior art.
In a first aspect, the present disclosure provides an electronic price tag system comprising:
the guide rail device comprises a guide rail, a plurality of positioning electrodes and a first resistor, wherein the positioning electrodes are sequentially arranged on the guide rail at intervals along the extension direction of the guide rail, the first resistor is connected between every two adjacent positioning electrodes in series, and the positioning electrodes at the tail end are grounded;
the electronic price tag comprises a price tag body, and a power supply positive connecting piece, a power supply negative connecting piece and a conductive contact piece which are arranged on the price tag body, wherein the power supply positive connecting piece and the power supply negative connecting piece are constructed to be used for connecting a power supply, and the power supply positive connecting piece and the conductive contact piece are electrically connected through a second resistor;
the electronic price tag is configured to be mounted on the rail and then, in a position measurement mode, to contact the conductive contact with one of the positioning electrodes, to cause the power source positive connection to output a high level and to measure a voltage across the second resistor, the voltage across the second resistor being configured to be used to determine whether the price tag body is at a target location on the rail.
In one embodiment, the electronic price tag is further configured to switch off the input electrical signal of the power positive connection in a normal operating mode after being mounted on the rail.
In one embodiment, the rail device further comprises a power source positive contact line and a power source negative contact line connected with the power source, and the positioning electrode at the tail end is connected with the power source negative contact line; and the number of the first and second groups is,
the electronic price tag is configured such that, after being mounted on the guide rail, the power supply positive connector is in contact with the power supply positive contact line and the power supply negative connector is in contact with the power supply negative contact line.
In one embodiment, the conductive contact is a circular arc contact projecting toward the positioning electrode.
In one embodiment, the gap between adjacent positioning electrodes is 0.1mm.
In one embodiment, the positioning electrode is provided on one end face of the guide rail, and the first resistor is provided on an end face of the guide rail opposite to the positioning electrode.
In one embodiment, the rail device further includes a resistor pad located on the same surface as the first resistor, the positioning electrode is connected with the resistor pad through a via hole formed in the rail, and two adjacent first resistors are connected through the resistor pad.
In one embodiment, the resistance pad is a carbon film resistance pad and/or the first resistance is a carbon film resistance.
In one embodiment, the electronic price tag comprises:
the chip is arranged on the price tag body, a first port of the chip is connected with the power supply positive electrode connecting piece and the second resistor, a second port of the chip is used for measuring voltages at two ends of the second resistor, and a third port of the chip is grounded.
In one embodiment, the first port is a general purpose input output port and/or the second port is a digital to analog conversion port.
In a second aspect, the present disclosure also provides an electronic price tag, which includes a price tag body, and a power supply positive connection piece, a power supply negative connection piece and a conductive contact piece which are arranged on the price tag body, wherein the power supply positive connection piece and the power supply negative connection piece are configured to be connected with a power supply, and the power supply positive connection piece and the conductive contact piece are electrically connected through a second resistor;
the electronic price tag is configured to be mounted on a guide rail and then in a positioning measurement mode, contact the conductive contact with a positioning electrode on one of the guide rails, enable the power supply positive connection to output a high level and measure a voltage across a second resistor, the voltage across the second resistor being configured to be used to determine whether the price tag body is at a target position on the guide rail.
In a third aspect, the present disclosure further provides a guide rail device for installing an electronic price tag, where the electronic price tag is the electronic price tag described in any one of the above, the guide rail device includes a guide rail, a plurality of positioning electrodes sequentially arranged on the guide rail at intervals along an extending direction of the guide rail, and a first resistor connected in series between two adjacent positioning electrodes, and the positioning electrode at the tail end is grounded.
In one embodiment, the gap between adjacent positioning electrodes is 0.1mm.
In one embodiment, the first resistance is a carbon film resistance.
One of the benefits of the electronic price tag system, the electronic price tag and the guide rail device is that the length of each positioning electrode along the extension direction of the guide rail and the sum of the gaps between each positioning electrode and the adjacent positioning electrode are used as the minimum measurement unit, after the conductive contact sheet on the electronic price tag is contacted with any one positioning electrode, the electronic price tag and the positioning electrode which is contacted with the electronic price tag at present to the tail part form a current loop, when the power supply outputs high level through the positive connecting piece of the power supply, the voltage at the two ends of the second resistor can be detected, the actual position of the electronic price tag on the guide rail can be obtained by combining the voltage division principle, then the actual position and the target position are compared, whether the electronic price tag is placed in place or not can be known according to the comparison result, if the electronic price tag is not placed at the target position, an alarm can be sent to remind a user, manual check is not needed, and the management cost is greatly reduced.
According to the electronic price tag system, the positioning detection circuit is not arranged on the guide rail, the sum of the length of each positioning electrode and the gap between two adjacent positioning electrodes is skillfully used as the minimum measurement unit, the positioning detection circuit formed by the positioning electrodes and the electronic price tag in a matched mode is used for obtaining the voltage of the second resistor, the actual position of the electronic price tag on the guide rail can be determined by the detected voltage, and the electronic price tag system is simple in structure and easy to achieve.
In addition, the first resistor is a carbon film resistor, the carbon film resistor is printed on the guide rail or the positioning circuit board, the method can be implemented on a plane, the protrusion of components is avoided, and after the carbon film resistor is covered by carbon oil, the method has the characteristics of dirt corrosion resistance, high engineering reliability and lower implementation cost. In addition, the carbon film resistor is convenient to print in batches, more positioning electrode segments are ensured, and the implementation cost is high.
It should be noted that the electronic price tag and the rail device for mounting the electronic price tag of the present disclosure have the same or corresponding technical features as the electronic price tag system described above, and therefore, the same technical effects are also achieved, and no further description is provided herein.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.
FIG. 1 is a schematic diagram of the correspondence between an electronic price tag and a placed commodity on a shelf;
FIG. 2 is a schematic structural view of a track arrangement of the present disclosure in one embodiment;
FIG. 3 is a schematic diagram of an electronic price tag of the present disclosure in one embodiment;
figure 4 is a schematic diagram of the operation of the chip of the electronic price tag in one embodiment.
The one-to-one correspondence between component names and reference numbers in fig. 2 to 4 is as follows:
1, a guide rail device: 10 guide rails, 11 positioning electrodes, 12 first resistors, 13 resistor pads, 14 power supply positive contact wires and 15 power supply negative contact wires;
2, electronic price tag: the tag comprises a tag body 20, a power supply positive electrode connecting piece 21, a power supply negative electrode connecting piece 22, a conductive contact piece 23, a chip 24, a first port 241, a second port 242, a third port 243 and a second resistor 25.
Detailed Description
Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses.
Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.
The utility model provides an electron price tag system, this electron price tag system of this disclosure includes guide rail device and electron price tag, wherein, includes guide rail device and includes the guide rail, along the extending direction head and the tail of guide rail a plurality of positioning electrode of interval setting on the guide rail in proper order to and the first resistance of two adjacent positioning electrode of series connection, and the positioning electrode ground connection of afterbody. The electronic price tag comprises a price tag body, and a power supply positive connecting piece, a power supply negative connecting piece and a conductive contact piece which are arranged on the price tag body, wherein the power supply positive connecting piece and the power supply negative connecting piece are constructed to be used for connecting a power supply, and the power supply positive connecting piece and the conductive contact piece are electrically connected through a second resistor. And the electronic price tag is configured to be installed on the guide rail and then in a positioning measurement mode, the conductive contact piece is contacted with one positioning electrode, the power supply positive electrode connecting piece outputs high level and measures the voltage at two ends of the second resistor, and the voltage at two ends of the second resistor is configured to be used for determining whether the price tag body is at a specified target position on the guide rail or not.
The positioning principle of the electronic price tag system is that the length of each positioning electrode along the extension direction of a guide rail and the sum of the gaps between each positioning electrode and the adjacent positioning electrode are used as the minimum measurement unit, after a conductive contact sheet on the electronic price tag is contacted with any one positioning electrode, the electronic price tag and the positioning electrode which is contacted with the electronic price tag at present to the tail part form a current loop, when a power supply outputs a high level through a power supply anode connecting piece, the voltage at two ends of a second resistor can be detected, the actual position of the electronic price tag on the guide rail can be obtained by combining the voltage division principle, the actual position and the target position are compared, whether the electronic price tag is placed in place or not can be known according to the comparison result, if the electronic price tag is not placed at the target position, an alarm can be sent to remind a user, manual check is not needed, and therefore the management cost is greatly reduced.
The electronic price tag system does not arrange a positioning detection circuit on the guide rail, but skillfully takes the sum of the length of each positioning electrode and the gap between two adjacent positioning electrodes as a minimum measurement unit, the positioning detection circuit formed by the positioning electrodes and the electronic price tag in a matching way obtains the voltage of the second resistor, and the actual position of the electronic price tag on the guide rail can be determined by using the detected voltage, so that the electronic price tag system is simple in structure and easy to realize.
For better understanding, the specific structure of the electronic price tag system of the present disclosure and the operating principle thereof will be described in detail below with reference to fig. 2 to 4 in conjunction with one embodiment. It should be noted that, the present disclosure also provides an electronic price tag and a rail apparatus for installing the electronic price tag, and in order to keep the text concise, the electronic price tag and the rail apparatus for installing the electronic price tag are introduced together when describing the electronic price tag system, and the description of the two is not separately provided.
Referring to fig. 2, the electronic price tag system of the present disclosure includes a rail assembly 1 for mounting an electronic price tag, the rail assembly 1 including a rail 10, the rail 10 being typically an elongated piece of metal, plastic, or resin, the rail 10 being configured to extend along a length of a shelf deck and substantially conform to a length of space on the deck for holding merchandise, the rail 10 being fixedly or removably attached to a cross-member of the shelf deck. The front part of the guide rail 10 is provided with a mounting groove, the electronic price tags are detachably mounted in the mounting groove, and it should be noted that the front part refers to the side of the shelf facing the user, so that the user can conveniently pick and place the electronic price tags on the shelf.
The guide rail device 1 may further include a positioning circuit board, where the positioning circuit board includes a circuit board body, a plurality of positioning electrodes 11 sequentially arranged on the circuit board body at intervals end to end along the extending direction of the guide rail 10, and a first resistor 12 connected in series between two adjacent positioning electrodes 11. Of course, the positioning electrode 11 and the first resistor 12 may be directly provided on the guide rail 10 to omit a positioning circuit board.
For example, the length of the guide rail 10 is 850mm, and after the length of the transition area between the left end and the right end of the guide rail 10 and the nearest positioning electrode 11 is removed by 20mm, the remaining length of the guide rail 10 is 810mm, that is, 81 positioning electrodes 11 may be disposed on the guide rail 10, and for convenience of recording, the 81 positioning electrodes 11 are numbered sequentially from head to tail: S1-S81. Of course, in other embodiments, the positioning electrodes 11 at the leading and trailing ends are aligned with the left and right ends of the guide rail 10.
In order to ensure the accuracy of the measurement precision, the gap between two adjacent positioning electrodes 11 is controlled to be as small as possible, for example, the gap between two adjacent positioning electrodes 11 is 0.1mm, and the first resistor 12 is not conveniently arranged in such a small gap.
For this purpose, in the present exemplary embodiment, the positioning electrode 11 is arranged on one end face of the guide rail 10, and the second resistor is arranged on the end face of the guide rail 10 opposite to the positioning electrode 11, see fig. 2.
In this way, the rail apparatus can make full use of both side surfaces of the rail to arrange the positioning electrode 11 and the first resistor 12.
In addition, the first resistor is a carbon film resistor, the carbon film resistor is printed on the guide rail 10 or the positioning circuit board, the method can be implemented on a plane, the protrusion of components is avoided, and after the carbon film resistor is covered by carbon oil, the method has the characteristics of dirt corrosion resistance, high engineering reliability and lower implementation cost. In addition, the carbon film resistor is convenient to print in batches, more positioning electrodes 11 are ensured to be segmented, and the implementation cost is high.
In detail, the track device 1 further includes a resistance pad 13 located on the same end face as the first resistor 12, the positioning electrode 11 and the resistance pad 13 are connected by a via 110 provided on the track 10, and two adjacent first resistors 12 are connected by the resistance pad 13. Also the resistance pad 13 is a carbon film resistance pad.
It should be noted that the carbon film resistor pad has the same effect as the carbon film resistor, which has been fully described above and will not be described herein again.
In addition, the carbon film resistor pad has a minimum measurement unit formed by the sum of the length of the positioning electrode 11 and the gap between two adjacent positioning electrodes 11 along the extending direction of the guide rail 10 after the carbon film resistor pad has the carbon film resistor, for example, the length of the positioning electrode 11 is 9.9mm, the gap between two adjacent positioning electrodes 11 is 0.1mm, that is, the minimum measurement unit formed by the sum of the gaps between the positioning electrode 11 and two adjacent positioning electrodes 11 is 10mm. The number of positioning electrodes 11 depends on the length of the rail 10. It should be noted that in other embodiments, the sum of the gaps between the positioning electrode 11 and two adjacent positioning electrodes 11 forms a minimum measurement unit between 9mm and 11 mm.
Based on this, when the electronic price tag is placed at a certain position of the guide rail 10, if the actual position of the electronic price tag can be automatically obtained, the relationship between the actual position and the specified target position is compared, and whether the electronic price tag is placed at the specified target position on the target shelf can be judged according to the comparison structure, for example, whether target commodities such as new commodities, popular commodities and the like are placed at the target position on the target shelf close to the doorway. If the comparison result is that the actual position of the electronic price tag is not consistent with the designated target position, the user can be informed to update. For this reason, an electronic price tag and rail arrangement are required to cooperate to capture the actual position of the electronic price tag on the rail 10.
In detail, referring to fig. 3, in the present embodiment, the electronic price tag 2 includes a price tag body 20, and a power supply positive electrode connection piece 21, a power supply negative electrode connection piece 22, and a conductive contact piece 23 provided on the price tag body 20, wherein the power supply positive electrode connection piece 21 and the power supply negative electrode connection piece 22 are configured to communicate with a power supply, and the power supply positive electrode connection piece 21 and the conductive contact piece 23 are connected in series through a second resistor.
The price tag body 20 is generally a rectangular parallelepiped element made of an insulating material, and the price tag body 20 is further configured to mount a display screen, and the display screen can display information related to the commodity corresponding to the electronic price tag 2, such as a name, a price, a place of origin, and the like, where specific display contents are not limited herein.
The electronic price tag 2 is configured to be mounted on the rail 10 to bring the conductive contact 23 into contact with one of the positioning electrodes 11 in a positioning measurement mode, to connect the power supply to the positive power supply connection 21 and the negative power supply connection 22 and to detect the voltage across the second resistor.
At this time, the power supply, the second resistor, the positioning electrodes 11 which are currently in contact with the first conductive contact, and the first resistor 12 between two adjacent positioning electrodes 11 in the positioning electrodes 11 form a complete current loop, and then the voltage at two ends of the second resistor is measured.
It should be noted that the electronic price tag 2 of the present disclosure may be a dry battery or a rechargeable battery, or may be an external power source, and the power source is connected to the power source positive electrode connector 21 and the power source negative electrode connector 22, while in the embodiment, the power source is provided to the electronic price tag 2 by the guide rail device 1.
In detail, with continued reference to fig. 2, the track device 1 further includes a power positive contact line 14 and a power negative contact line 15, the power positive contact line 14 and the power negative contact line 15 are parallel to each other and are respectively disposed on two sides of the positioning electrode 11, and the positioning electrode 11 at the tail end is connected to the power negative contact line 14 and both connected to a ground line.
After the electronic price tag 2 is installed on the guide rail device 1, the power supply positive electrode connecting piece 21 of the electronic price tag 2 is contacted with the power supply positive electrode contact wire 14, the power supply negative electrode connecting piece 22 of the electronic price tag 2 is contacted with the power supply negative electrode contact wire 15, and the conductive contact piece 23 of the electronic price tag 2 is contacted with one positioning electrode 11.
Similarly, the power supply of the guide rail device 2 may be a dry battery or a rechargeable battery, or may be an external power supply.
With continued reference to fig. 3, the power source positive connector 21, the power source negative connector 22 and the conductive contact piece 23 are all arc-shaped elastic pieces bent toward the side of the guide rail 10.
The arc-shaped elastic sheet can reduce the lateral resistance of the electronic price tag 2 when moving on the guide rail, and reduce the loss of the positioning electrode 11. Meanwhile, the design of the arc-shaped elastic sheet can also ensure the gap between two adjacent positioning electrodes, the arc-shaped elastic sheet cannot be connected with the positioning electrodes, and the arc-shaped elastic sheet can be connected with the front positioning electrode and the rear positioning electrode at the gap position of 0.1mm, so that the accuracy of a voltage detection value is ensured.
Referring to fig. 4, the electronic price tag 2 further includes a chip 24, the chip 24 being disposed on the price tag body 20, the chip 24 including a first port 241, a second port 242, and a third port 243. The first port 241 is connected to the conductive contact 23 through the second resistor 25, the second port 242 is connected between the second resistor 25 and the conductive contact 23, the third port is grounded, the first port 241 is connected to the positive power connector 21, the second port 242 is used for measuring the voltage across the second resistor 25, and the third port 243 is connected to the negative power connector 22 and the ground.
In detail, the first port 241 is a general-purpose input/output port, and the second port 242 is a digital-to-analog conversion port. When the electronic price tag system is in a position measurement mode, the first port 241 inputs a high level. When the electronic price tag system is in a normal operation mode, that is, the electronic price tag system is in a non-location measurement mode, the first port 241 is set as an analog input, and the second port 242 is set as an analog input, so as to ensure that the location electrode 11 is in a non-electrical connection state.
The digital-to-analog conversion port can perform short-time measurement, positioning measurement can be completed in millisecond level, and the positioning electrode 11 is guaranteed to be in no electric connection in most of time.
Of course, in other embodiments, a load cell may be connected in parallel across the second resistor 25 to measure the voltage across the second resistor 25.
When the electronic price tag system detects the voltage of the second resistor 25, the electronic price tag 2 is in communication connection with the server in a wired or wireless mode. Specifically, when the electronic price tag returns data to the server, the communication link may be a wireless channel such as bluetooth/wifi, or a wired channel such as CAN/RS 485/ethernet.
The server determines the actual position of the electronic price tag 2 on the guide rail 10 by taking the voltage of the second resistor 25. The specific determination mode is realized by the following formula (one):
L＝A+{[(R 2 ×U)÷U 2 -R 2 ]÷R 1 formula (one)
Wherein, L represents the distance between the leftmost end of the guide rail and the electronic price tag, R2 represents a second resistor, U represents a high level input by the anode connecting piece of the power supply, and U represents a high level input by the anode connecting piece of the power supply 2 The voltage across the second resistor is represented, R1 represents the first resistor, and l represents the sum of the length of one positioning electrode and the gap between two adjacent positioning electrodes along the extension direction of the guide rail.
It should be noted that the voltage across the second resistor 25 is a minimum value after passing through the random time 10 times.
Obviously, the electronic price tag system does not provide a positioning detection circuit on the guide rail 10, but skillfully takes the sum of the length of each positioning electrode 11 and the gap between two adjacent positioning electrodes as a minimum measurement unit, the positioning detection circuit formed by matching the positioning electrodes 11 and the electronic price tag 2 is used for acquiring the voltage of the second resistor, and the detected voltage can be used for determining the actual position of the electronic price tag on the guide rail.
When the voltage at the two ends of the second resistor is measured by the electronic price tag, the electronic price tag is in communication connection with the server in a wired and wireless mode, the voltage at the two ends of the second resistor 25 is transmitted to the server, and the server is internally provided with a storage unit and a calculation unit. The storage unit stores the actual length of the guide rail 10 and each parameter in the formula (I), and the calculation unit calculates the actual position of the electronic price tag on the guide rail 10 according to the formula (I), namely the actual distance from the left end of the guide rail to the contact point of the electronic price tag 2 and the positioning pole piece 11.
The instruction sent by the server is a target position of the guide rail for placing the electronic price tag on the shelf, and the value of the target position may be a target distance calculated from the left end of the guide rail as the starting end, although the value is not a single value, and may be a value range, which is an acceptable misalignment deviation amount, and a person skilled in the art may set the value based on actual conditions, and the description is not limited herein.
After the calculation unit obtains the actual distance from the left end of the guide rail to the contact point of the electronic price tag and the positioning pole piece, the server judges whether the actual distance is consistent with the target distance, if so, the electronic price tag is placed at the appointed target position, and if not, the electronic price tag is misplaced, and the server can send an alarm signal to remind a user of re-placing the electronic price tag.
For better understanding, the working principle of the electronic price tag system of the present disclosure is explained in detail below in connection with one application scenario with reference to fig. 2 to 4.
When a certain supermarket receives a server instruction, a new commodity A in the season needs to be placed at a target position B on a third layer of a supermarket entrance target shelf, a supermarket worker places an electronic price tag 2 on a guide rail 10 on the third layer of the target shelf, at the moment, a conductive contact piece 23 on the electronic price tag 2 is in contact with a positioning electrode 11 on the guide rail 10, a power supply positive electrode connecting piece 21 is in contact with a power supply positive electrode contact wire 14 on the guide rail 10, a power supply negative electrode connecting piece 22 is in contact with a power supply negative electrode contact wire 15 on the guide rail 10, and a power supply is electrically conducted with the power supply positive electrode contact wire 14 and the power supply negative electrode contact wire 15.
When the electronic price tag system needs to measure the actual position of the electronic price tag 2 on the shelf, the general input/output port of the chip 24 inputs a high level, and the digital-to-analog conversion port thereof measures the voltages at the two ends of the second resistor 25.
The server acquires the voltage of the two end parts of the second resistor 25, calculates the actual distance from the left end of the guide rail 10 to the positioning electrode 11 in contact with the electronic price tag 2 according to a formula (I) based on the voltage, judges whether the actual distance is consistent with the target distance given by the server or not, if so, indicates that the electronic price tag 2 is placed at the specified target position, and if not, indicates that the electronic price tag 2 is misplaced, and the server can send an alarm signal to remind a user of replacing the electronic price tag.
Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.
Claims (14)
1. An electronic price tag system, comprising:
the guide rail device (1) comprises a guide rail (10), a plurality of positioning electrodes (11) which are sequentially arranged on the guide rail (10) at intervals along the extending direction of the guide rail (10), and a first resistor (12) which is connected between two adjacent positioning electrodes (11) in series, wherein the positioning electrode (11) positioned at the tail end is grounded;
the electronic price tag (2) comprises a price tag body (20) and a power supply positive connecting piece (21), a power supply negative connecting piece (22) and a conductive contact piece (23) which are arranged on the price tag body (20), wherein the power supply positive connecting piece (21) and the power supply negative connecting piece (22) are configured to be connected with a power supply, and the power supply positive connecting piece (21) and the conductive contact piece (23) are electrically connected through a second resistor (25);
the electronic price tag (2) is configured to be mounted on the guide rail (10) and then in a positioning measurement mode, the conductive contact (23) is contacted with one positioning electrode (11), the power positive connection piece (21) outputs a high level and measures the voltage across the second resistor (25), and the voltage across the second resistor (25) is configured to be used for determining whether the price tag body (20) is at the target position on the guide rail (10).
2. The electronic price tag system according to claim 1, characterized in that the electronic price tag (2) is further configured to switch off the input electrical signal of the power supply positive connection (21) in a normal operation mode after being mounted on the guide rail (10).
3. The electronic price tag system according to claim 1, characterized in that the rail arrangement (1) further comprises a power positive contact line (14) and a power negative contact line (15) connected to the power supply, the positioning electrode (11) at the tail end being connected to the power negative contact line (15); and the number of the first and second electrodes,
the electronic price tag (2) is configured such that, after being mounted on the guide rail (10), the power supply positive connection (21) is in contact with the power supply positive contact line (14) and the power supply negative connection (22) is in contact with the power supply negative contact line (15).
4. An electronic price tag system according to claim 1, characterized in that the electrically conductive contact (23) is a circular arc contact projecting towards the positioning electrode (11).
5. An electronic price tag system according to claim 1, characterized in that the gap between adjacent positioning electrodes (11) is 0.1mm.
6. The electronic price tag system according to any of claims 1 to 5, characterized in that the positioning electrode (11) is arranged on one end face of the guide rail (10), and the first resistor (12) is arranged on the end face of the guide rail (10) opposite to the positioning electrode (11).
7. The electronic price tag system according to claim 6, characterized in that the rail arrangement (1) further comprises a resistor pad (13) on the same side as the first resistors (12), the positioning electrodes (11) and the resistor pad (13) are connected by vias opened on the rail (10), and two adjacent first resistors (12) are connected by the resistor pad (13).
8. An electronic price tag system according to claim 7, characterized in that the resistance pad (13) is a carbon film resistance pad and/or the first resistance (12) is a carbon film resistance.
9. The electronic price tag system according to any of claims 1 to 5, characterized in that the electronic price tag (2) comprises:
the chip (24) is arranged on the price tag body (20), a first port (241) of the chip (24) is connected with the power supply positive electrode connecting piece (21) and the second resistor (25), a second port (242) of the chip (24) is used for measuring the voltage at two ends of the second resistor (25), and a third port (243) of the chip (24) is grounded.
10. The electronic price tag system of claim 9, wherein the first port (241) is a general purpose input output port and/or the second port (242) is a digital to analog conversion port.
11. An electronic price tag, characterized in that the electronic price tag (2) comprises a price tag body (20) and a power supply positive connector (21), a power supply negative connector (22) and a conductive contact piece (23) arranged on the price tag body (20), and the power supply positive connector (21) and the power supply negative connector (22) are configured for connecting a power supply, and the power supply positive connector (21) and the conductive contact piece (23) are electrically connected through a second resistor (25);
the electronic price tag (2) is configured to be mounted on a guide rail (10) and then in a positioning measurement mode, the conductive contact piece (23) is contacted with a positioning electrode (11) on one guide rail (10), a power supply positive electrode connecting piece (21) outputs a high level, and the voltage at two ends of a second resistor (25) is measured, and the voltage at two ends of the second resistor (25) is configured to be used for determining whether the price tag body (20) is at a target position on the guide rail (10).
12. A guide rail device for mounting an electronic price tag, wherein the electronic price tag (2) is the electronic price tag (2) of claim 11, the guide rail device (1) comprises a guide rail (10), a plurality of positioning electrodes (11) sequentially arranged on the guide rail (10) at intervals along the extending direction of the guide rail (10), and a first resistor (12) connected in series between two adjacent positioning electrodes (11), and the positioning electrodes (11) at the tail end are grounded.
13. Guide rail device according to claim 12, characterized in that the gap between adjacent positioning electrodes (11) is 0.1mm.
14. Guide rail device according to claim 12, characterized in that the first resistor (12) is a carbon film resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223122306.3U CN218630809U (en) | 2022-11-23 | 2022-11-23 | Electronic price tag system, electronic price tag and guide rail device for installing electronic price tag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223122306.3U CN218630809U (en) | 2022-11-23 | 2022-11-23 | Electronic price tag system, electronic price tag and guide rail device for installing electronic price tag |
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| Publication Number | Publication Date |
|---|---|
| CN218630809U true CN218630809U (en) | 2023-03-14 |
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| CN202223122306.3U Active CN218630809U (en) | 2022-11-23 | 2022-11-23 | Electronic price tag system, electronic price tag and guide rail device for installing electronic price tag |
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| Country | Link |
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| CN (1) | CN218630809U (en) |
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