CN215835332U - Intelligent ear tag two-dimensional code reader - Google Patents
Intelligent ear tag two-dimensional code reader Download PDFInfo
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- CN215835332U CN215835332U CN202122068749.8U CN202122068749U CN215835332U CN 215835332 U CN215835332 U CN 215835332U CN 202122068749 U CN202122068749 U CN 202122068749U CN 215835332 U CN215835332 U CN 215835332U
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Abstract
The utility model relates to the technical field of two-dimensional code identification, and discloses an intelligent ear tag two-dimensional code reader, which comprises a switching circuit board and a camera, wherein the switching circuit board is provided with a switching power supply circuit, a time relay, a single-pole multi-throw switch, at least one voltage switching circuit, a voltage dividing circuit, a comparator, a control switch and a plurality of wiring terminals; in actual use, the commercial power is converted into the power supply voltage of the camera through the switching power supply circuit and the voltage conversion circuit, and an overlong power supply circuit is not needed, so that the power supply stability of the camera is ensured; a plurality of same or different power supply voltages are output through a plurality of voltage conversion circuits, and a plurality of cameras with the same or different voltage specifications can be simultaneously supplied with power.
Description
Technical Field
The utility model relates to the technical field of two-dimensional code identification, in particular to an intelligent ear tag two-dimensional code reader.
Background
In the animal feeding field, more and more raising companies or pasture owners can wear the ear tag for the raised animal, and the monitoring and the management of the position of the animal can be realized by detecting the signal sent by the tag chip in the ear tag. In the production process of the ear tag, a corresponding tag number needs to be burned into a tag chip in the ear tag, and after the ear tag is worn by an animal, the tag number represents the animal. The conventional label number information burning of the ear tag distributes the burning number through the upper computer, so that the burning cost is high, and the burning number is required to be distributed, so that the burning process is more, the burning efficiency is low, and the burning requirement of a large batch of ear tags cannot be met.
In view of the defects of the existing ear tag label number burning method, the two-dimension code information on the ear tag is scanned, and then the corresponding label number is burnt into the ear tag according to the two-dimension code information. However, scanning the two-dimensional code needs the camera, to present ear tag production burning production line, the power supply line of camera often overlength, lacks the independent power supply unit of camera, leads to the voltage of inputing the camera to hang down, influences the normal work of camera, and then leads to the camera can not be complete two-dimensional code information on the shooting ear tag.
SUMMERY OF THE UTILITY MODEL
In view of the defects of the background art, the utility model provides an intelligent ear tag two-dimensional code reader, which aims to solve the technical problems that when the ear tag label number is burnt by scanning two-dimensional code information on an ear tag, a separate power supply device of a camera is lacked on an ear tag production burning production line, a power supply line of the camera is too long, and the voltage input into the camera is low.
In order to solve the technical problems, the utility model provides the following technical scheme: an intelligent ear tag two-dimensional code reader comprises a switching circuit board and a camera, wherein the switching circuit board is provided with a switching power supply circuit, a time relay, a single-pole multi-throw switch, at least one voltage conversion circuit, a voltage division circuit, a comparator, a control switch and a plurality of wiring terminals;
the switch power supply circuit is configured to convert commercial power into first direct-current voltage, a voltage output end of the switch power supply circuit is electrically connected with a selection end of the single-pole multi-throw switch through a pair of normally closed contacts of a time relay, each fixed end of the single-pole multi-throw switch is electrically connected with one path of voltage conversion circuit, a voltage output end of the voltage conversion circuit is electrically connected with one wiring terminal, and a power supply end of the camera is connected to the wiring terminal which is electrically connected with the voltage output end of the voltage conversion circuit;
the voltage output end of the switching power supply circuit is also electrically connected with the input end of the voltage division circuit, the voltage division point of the voltage division circuit is electrically connected with the positive input end of the comparator, the negative input end of the comparator is respectively electrically connected with the voltage output ends of all the voltage conversion circuits, and the output end of the comparator is electrically connected with the control end of the control switch;
the voltage output end of the switch power supply circuit is also respectively electrically connected with one end of a control coil of the time relay and input contacts of two pairs of normally open contacts of the time relay, the other end of the control coil of the time relay is electrically connected with the input end of the control switch, and the output end of the control switch is grounded through a grounding resistor; the output contacts of one pair of normally open contacts are electrically connected with the indicator lamp, and the output contacts of the other pair of normally open contacts are electrically connected with the control end of the control switch through the voltage reduction circuit.
In one embodiment, the voltage divider circuit includes a sliding varistor and at least one resistor, the sliding varistor being connected in series with the resistor.
In one embodiment, when the voltage divider circuit includes two or more resistors, all the resistors have the same resistance value
In a certain embodiment, the LED lamp further comprises an installation shell with an opening at the top, the switching circuit board is fixed in the installation shell, a display hole and a through line hole are formed in the installation shell, the display hole corresponds to the indicator light, installation ear plates are respectively installed at the tops of two opposite side faces of the installation shell, and installation holes are formed in the installation ear plates.
In one embodiment, the output voltages of all the voltage conversion circuits are the same or different.
Compared with the prior art, the utility model has the beneficial effects that:
1: the commercial power is converted into the power supply voltage of the camera through the switching power supply circuit and the voltage conversion circuit, and an overlong power supply circuit is not needed, so that the power supply stability of the camera is ensured;
2: a plurality of same or different power supply voltages are output through a plurality of voltage conversion circuits, and a plurality of cameras with the same or different voltage specifications can be simultaneously supplied with power;
3: the voltage dividing circuit inputs reference voltage to the comparator, the comparator detects the voltage output by the voltage conversion circuit, when the output voltage of the voltage conversion circuit is lower than the reference voltage within a certain time, the comparator outputs a high level signal within a certain time to enable the control switch to be switched on, a control coil of the time relay is connected with 24V voltage to act, a normally closed contact of the time relay is disconnected, and the normally open contact of the time relay is closed, wherein the control coil of the time relay realizes self-locking through a pair of normally open contacts and a voltage reduction circuit, the time relay is ensured to be kept after acting, the time relay enables display electricity to be connected with a power supply to emit light through another pair of normally open contacts, and working personnel can conveniently know the power supply condition of the camera;
4: the circuit on the switching circuit board has simple structure, does not need a controller, and has low cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention in an embodiment;
FIG. 2 is a circuit diagram of a voltage divider circuit in an embodiment;
fig. 3 is a schematic structural view of the mounting case in the embodiment.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
As shown in fig. 1, an intelligent ear tag two-dimensional code reader comprises a switching circuit board and a camera, wherein the switching circuit board is provided with a switching power supply circuit, a time relay KT, a single-pole triple-throw switch S1, a three-way voltage conversion circuit, a voltage division circuit, a comparator CMP, a control switch and three wiring terminals; the three voltage conversion circuits are respectively a first voltage conversion circuit, a second voltage conversion circuit and a third voltage conversion circuit, and the three wiring terminals are respectively a wiring terminal J1, a wiring terminal J2 and a wiring terminal J3.
The switch power circuit is configured to convert the commercial power into a first direct current voltage, in this embodiment, the first direct current voltage is 24V direct current voltage, a voltage output end V1 of the switch power circuit is electrically connected with a selection end of a single-pole three-throw switch S1 through a pair of normally closed contacts KT1 of a time relay KT, three fixed ends of the single-pole three-throw switch S1 are respectively electrically connected with a first voltage conversion circuit, a second voltage conversion circuit and a third voltage conversion circuit, voltage output ends of the first voltage conversion circuit, the second voltage conversion circuit and the third voltage conversion circuit are respectively electrically connected with a connection terminal J1, a connection terminal J2 and a connection terminal J3, voltages output by the first voltage conversion circuit, the second voltage conversion circuit and the third voltage conversion circuit during actual use may be the same or different, and a plurality of cameras with the same or different voltage specifications can be simultaneously supplied with power, the power supply end of the camera is connected to the corresponding wiring terminal according to actual needs;
the voltage output end V1 of the switching power supply circuit is also electrically connected with the input end of the voltage division circuit, the voltage division point of the voltage division circuit is electrically connected with the positive input end of the comparator CMP, the negative input end of the comparator CMP is electrically connected with the voltage output ends of all the voltage conversion circuits respectively, and the output end of the comparator CMP is electrically connected with the control end of the control switch;
the voltage output end V1 of the switch power supply circuit is also respectively and electrically connected with one end of a control coil of the time relay KT and input contacts of two pairs of normally open contacts of the time relay KT, the other end of the control coil of the time relay KT is electrically connected with the input end of the control switch, and the output end of the control switch is grounded through a grounding resistor Rd; the output contact of a pair of normally open contact KT2 is connected with pilot lamp LED electricity, and another output contact to normally open contact KT3 passes through step-down circuit and is connected with control switch's control end electricity, and step-down circuit converts first direct current voltage into control switch's the drive voltage that switches on, and control switch is the MOS pipe.
In actual use, a reference voltage is input to the comparator CMP through the voltage division circuit, the reference voltage and the voltage output by the voltage conversion circuit are compared through the comparator CMP to detect whether the voltage output by the voltage conversion circuit meets the working voltage requirement of the camera or not, and through the time delay action of the time relay, when the voltage output by the voltage conversion circuit is lower than the reference voltage, the comparator CMP outputs a high level signal to drive the control switch to be conducted, the control coil of the time relay KT is connected with the power, through the time delay function of the time relay, when the control coil of the time relay KE is directly connected with electricity within the time delay time, then time relay KT action, the suggestion is sent out to pilot lamp LED, and time relay KT's control coil realizes the auto-lock through normally open contact KT3 and the step-down circuit of itself, ensures that pilot lamp LED can send out always when the voltage of voltage conversion circuit output is less than reference voltage and indicate. In addition, misjudgment can be avoided through the time relay KT, and only in the delay time, the output voltage of the voltage conversion circuit is always lower than the reference voltage, and the indication lamp LED is lighted for prompting.
As shown in fig. 2, in the present embodiment, the voltage divider circuit includes a sliding rheostat R1, a resistor R2, and a resistor R3. The slide rheostat R1, the resistor R2 and the resistor R3 are sequentially connected in series, and the resistance values of the resistor R1 and the resistor R2 are the same. The voltage dividing circuit comprises two voltage dividing points which are respectively a connecting point of the slide rheostat R1 and the resistor R2 and a connecting point of the resistor R2 and the resistor R3.
In practical use, the voltage output end V1 of the switching power supply circuit always outputs 24V dc voltage, and the magnitude of the voltage dividing point of the voltage dividing circuit, that is, the magnitude of the reference voltage input to the comparator CMP, can be adjusted by adjusting the resistance value of the slide rheostat R1.
As shown in fig. 3, in this embodiment, the present invention further includes an installation shell 1 having an opening at a top, the adapter circuit board is fixed in the installation shell 1, the installation shell is provided with a display hole and a through hole 4, a power line of the camera passes through the through hole 4, the display hole is arranged corresponding to the indicator LED, the tops of two opposite sides of the installation shell 1 are respectively provided with an installation ear plate 2, and the installation ear plate 2 is provided with an installation hole 3. When in actual use, the mounting shell 1 is fixed on a production burning production line through the mounting hole on the mounting lug plate 2.
In light of the above, it is clear that many changes and modifications can be made by the workers in the field without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. An intelligent ear tag two-dimensional code reader is characterized by comprising a switching circuit board and a camera, wherein the switching circuit board is provided with a switching power supply circuit, a time relay, a single-pole multi-throw switch, at least one voltage conversion circuit, a voltage division circuit, a comparator, a control switch and a plurality of wiring terminals;
the switch power supply circuit is configured to convert commercial power into first direct-current voltage, a voltage output end of the switch power supply circuit is electrically connected with a selection end of the single-pole multi-throw switch through a pair of normally closed contacts of a time relay, each fixed end of the single-pole multi-throw switch is electrically connected with one path of voltage conversion circuit, a voltage output end of the voltage conversion circuit is electrically connected with one wiring terminal, and a power supply end of the camera is connected to the wiring terminal which is electrically connected with the voltage output end of the voltage conversion circuit;
the voltage output end of the switching power supply circuit is also electrically connected with the input end of the voltage division circuit, the voltage division point of the voltage division circuit is electrically connected with the positive input end of the comparator, the negative input end of the comparator is respectively electrically connected with the voltage output ends of all the voltage conversion circuits, and the output end of the comparator is electrically connected with the control end of the control switch;
the voltage output end of the switch power supply circuit is also respectively electrically connected with one end of a control coil of the time relay and input contacts of two pairs of normally open contacts of the time relay, the other end of the control coil of the time relay is electrically connected with the input end of the control switch, and the output end of the control switch is grounded through a grounding resistor; the output contacts of one pair of normally open contacts are electrically connected with the indicator lamp, and the output contacts of the other pair of normally open contacts are electrically connected with the control end of the control switch through the voltage reduction circuit.
2. An intelligent ear tag two-dimensional code reader according to claim 1, wherein the voltage dividing circuit comprises a slide rheostat and at least one resistor, and the slide rheostat is connected in series with the resistor.
3. The intelligent ear tag two-dimensional code reader according to claim 2, wherein when the voltage dividing circuit comprises more than two resistors, all the resistors have the same resistance.
4. The intelligent ear tag two-dimensional code reader according to claim 1, further comprising an installation shell with an opening at the top, wherein the switching circuit board is fixed in the installation shell, the installation shell is provided with a display hole and a through wire hole, the display hole is arranged corresponding to the indicator light, the tops of two opposite sides of the installation shell are respectively provided with an installation ear plate, and the installation ear plate is provided with an installation hole.
5. The intelligent ear tag two-dimensional code reader according to claim 1, wherein the output voltages of all the voltage conversion circuits are the same or different.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122068749.8U CN215835332U (en) | 2021-08-30 | 2021-08-30 | Intelligent ear tag two-dimensional code reader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122068749.8U CN215835332U (en) | 2021-08-30 | 2021-08-30 | Intelligent ear tag two-dimensional code reader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215835332U true CN215835332U (en) | 2022-02-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122068749.8U Active CN215835332U (en) | 2021-08-30 | 2021-08-30 | Intelligent ear tag two-dimensional code reader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215835332U (en) |
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2021
- 2021-08-30 CN CN202122068749.8U patent/CN215835332U/en active Active
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