Radio frequency reader-writer
By introducing a timer and controller design into the RF reader, the reader and writer are only activated when the card is close, solving the problem of high power consumption in standby state, extending the standby time of the RF reader and improving the battery life ability.
Patent Information
- Application Number
- CN202420049408.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-09
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-09
AI Technical Summary
The continuous power supply of existing RF readers and writers in standby state leads to excessive energy consumption and short battery life.
A radio frequency reader and writer is designed, including a timer and a controller, which is powered off to save power when no card is approaching to start the reader and writer only when the card is approaching.
It effectively reduces the power consumption of RF readers in standby state, extends the standby time, and improves battery life.
Smart Images
Figure CN222167603U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of reader-writers, in particular to a radio frequency reader-writer. Background Art
[0002] An RFID reader is a device used to read and write RFID tags and tag data. It usually consists of an antenna and a reader / writer. RFID readers can identify and process various types of RFID tags, including passive tags and active tags. Passive tags rely on the reader's power supply, while active tags have their own battery power supply. RFID readers are devices that can read and write RFID tag data through wireless radio frequency signals, and have a wide range of applications and functions.
[0003] The radio frequency readers in the prior art are generally divided into wireless and wired types. The wireless type has the advantage of being flexible and movable compared to the wired type, so that the radio frequency reader can be placed in different usage scenarios, thereby facilitating the reading of cards. However, since the radio frequency reader in the prior art is in standby mode, its internal battery will continue to provide power to the radio frequency reader, resulting in excessive energy consumption of the electromagnetic coil that is always activated in standby mode, resulting in a short battery life. Utility Model Content
[0004] The utility model provides a radio frequency reader / writer with the advantage of long standby time, so as to solve the problem that in the radio frequency reader / writer of the prior art, the internal battery will continue to provide power to the radio frequency reader / writer in the standby state, thereby causing the electromagnetic coil that is always started to consume too much energy in the standby state, thereby causing the battery life to be short.
[0005] In order to achieve the purpose of long standby time, the utility model provides the following technical solutions: a radio frequency reader, comprising a base plate and a fixing hole, the fixing hole is opened on one side surface of the base plate, a limit plate is installed on one side surface of the base plate, a limit block is installed on the inner wall of the limit plate, a charging component is installed on one side surface of the base plate, and a reader component is installed on one side surface of the base plate.
[0006] As a preferred technical solution of the utility model, the fixing holes are four and are evenly distributed in a linear array on one side surface of the bottom plate, and the limiting blocks are two, which are distributed on one side and the other side surface of the inner wall of the limiting plate.
[0007] As a preferred technical solution of the utility model, the charging component includes a charger, a contact copper sheet is installed on the top surface of the charger, a power cord is installed on the bottom surface of the charger, and the charger is installed on one side surface of the base plate.
[0008] As a preferred technical solution of the utility model, there are five contact copper sheets, which are evenly distributed in a linear array on the top surface of the charger. The contact copper sheets are electrically connected to the charger, and the power cord is electrically connected to the charger.
[0009] As a preferred technical solution of the utility model, the reader / writer assembly includes a shell, a limiting groove is installed on one side surface of the shell, an adsorption magnet is installed on one side surface of the shell, a fixed magnet is installed on one side surface of the base plate, a charging copper sheet is installed on the bottom end surface of the shell, a battery is installed on the inner wall of the shell, a controller is installed on the inner wall of the shell, a timer is installed on the inner wall of the shell, an object sensor is installed on the inner wall of the shell, and the shell is installed on one side surface of the base plate.
[0010] As a preferred technical solution of the utility model, one side surface of the shell is in active contact with one side surface of the bottom plate, the limiting grooves are two equally spaced grooves on one side and the other side surface of the shell, the inner wall of the limiting grooves is in active contact with the outer side surface of the limiting plate, the adsorption magnets are four equally spaced magnets in a linear array on one side surface of the shell, the fixed magnets are four equally spaced magnets in a linear array on one side surface of the bottom plate, and the adsorption magnets and the fixed magnets are in contact with each other.
[0011] As a preferred technical solution of the utility model, the charging copper sheet and the contact copper sheet are in contact with each other, the charging copper sheet and the battery are electrically connected, the battery and the controller are electrically connected, the controller and the object sensor are electrically connected, and the controller and the timer are electrically connected.
[0012] Compared with the prior art, the utility model provides a radio frequency reader / writer, which has the following beneficial effects:
[0013] The radio frequency reader / writer has a timer that enters a countdown. When the countdown is completed, the timer will cut off the power to the battery again through the controller, so that the battery no longer supplies power to the reader / writer. The reader / writer will only start and read the card when the card is close, thereby saving the power of the reader / writer and solving the problem that the internal battery of the wireless radio frequency reader / writer in the prior art will continue to provide power to the electromagnetic coil when there is no card to read or write, thereby causing the radio frequency reader / writer to consume a large amount of power in the standby state. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the external structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the bottom plate structure of the utility model;
[0016] Figure 3This is a schematic diagram of the internal structure of the utility model;
[0017] Figure 4 This is a schematic diagram of the internal structure of the reader / writer component of the utility model;
[0018] Figure 5 This is a schematic diagram of the internal structure of the reader / writer assembly of the utility model from another angle.
[0019] In the figure: 1. bottom plate; 2. fixing hole; 3. limit plate; 4. limit block; 5. charger; 6. contact copper sheet; 7. power cord; 8. shell; 9. limit slot; 10. adsorption magnet; 11. fixing magnet; 12. charging copper sheet; 13. battery; 14. controller; 15. timer; 16. object sensor. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0021] See also Figure 1-Figure 5 The utility model discloses a radio frequency reader / writer, comprising a base plate 1 and a fixing hole 2, the fixing hole 2 is opened on one side surface of the base plate 1, a limiting plate 3 is installed on one side surface of the base plate 1, a limiting block 4 is installed on the inner wall of the limiting plate 3, a charging component is installed on one side surface of the base plate 1, and a reader / writer component is installed on one side surface of the base plate 1.
[0022] There are four fixing holes 2 which are evenly distributed in a linear array on one side surface of the base plate 1. There are two limit blocks 4 which are distributed on one side and the other side surface of the inner wall of the limit plate 3. The outer shell 8 moves downward on the inner wall of the limit plate 3. At this time, the fixation between the limit blocks 4 and the limit grooves 9 will prevent the outer shell 8 from deviating when moving.
[0023] The charging assembly includes a charger 5, a contact copper sheet 6 is installed on the top surface of the charger 5, a power cord 7 is installed on the bottom surface of the charger 5, and the charger 5 is installed on one side surface of the bottom plate 1. Because the charger 5 and the contact copper sheet 6 are electrically connected, when the two are in contact with each other, the contact copper sheet 6 will input the electric energy of the power cord 7 into the battery 13 through the charging copper sheet 12, and then the battery 13 will store the electric energy, thereby achieving the charging effect.
[0024] There are five contact copper sheets 6, which are evenly distributed in a linear array on the top surface of the charger 5. The contact copper sheets 6 are electrically connected to the charger 5, and the power cord 7 is electrically connected to the charger 5. When the reader needs to be charged, the power cord 7 is connected to the circuit.
[0025] The reader / writer assembly includes a shell 8, a limiting groove 9 is installed on one side surface of the shell 8, an adsorption magnet 10 is installed on one side surface of the shell 8, a fixing magnet 11 is installed on one side surface of the bottom plate 1, a charging copper sheet 12 is installed on the bottom end surface of the shell 8, a battery 13 is installed on the inner wall of the shell 8, a controller 14 is installed on the inner wall of the shell 8, a timer 15 is installed on the inner wall of the shell 8, and an object sensor 16 is installed on the inner wall of the shell 8. The shell 8 is installed on one side surface of the bottom plate 1. When the shell 8 is in close contact with the metal, the adsorption magnet 10 installed on one side surface of the shell 8 will be adsorbed on one side surface of the metal, thereby fixing the shell 8 in a specific position.
[0026] One side surface of the shell 8 is in active contact with one side surface of the bottom plate 1, the limiting grooves 9 are two equally spaced grooves on one side and the other side of the shell 8, the inner wall of the limiting groove 9 is in active contact with the outer side surface of the limiting plate 3, the adsorption magnets 10 are four equally spaced linear arrays on one side surface of the shell 8, the fixed magnets 11 are four equally spaced linear arrays on one side surface of the bottom plate 1, and the adsorption magnets 10 and the fixed magnets 11 are in contact with each other.
[0027] The charging copper sheet 12 and the contact copper sheet 6 are in contact with each other, the charging copper sheet 12 and the battery 13 are electrically connected, the battery 13 and the controller 14 are electrically connected, the controller 14 and the object sensor 16 are electrically connected, and the controller 14 and the timer 15 are electrically connected. When the countdown is completed, the timer 15 will cut off the power to the battery 13 again through the controller 14, so that the battery 13 no longer supplies power to the reader, so that the reader will only start and read the card when the card is close, thereby saving power of the reader.
[0028] The working principle and use process of the utility model are as follows: when the reader needs to be charged, the power cord 7 is connected to the circuit, the outer surface of the shell 8 is held, and the bottom surface thereof is aligned between the limit plates 3, so that the fixing groove opened on one side surface of the shell 8 and the limit block 4 are aligned with each other. When the alignment is completed, the shell 8 is pressed down, so that the shell 8 moves downward on the inner wall of the limit plate 3. At this time, because the limit block 4 is fixed to the limit groove 9, the shell 8 will not deviate when it moves. When the shell 8 moves to the end on the inner wall of the limit plate 3, the adsorption magnet 10 installed on the surface of one side of the shell 8 and the fixed magnet 10 are aligned with the fixed magnet 10. The fixed magnets 11 will contact each other, and because both the adsorption magnet 10 and the fixed magnet 11 have magnetic attraction, the adsorption magnet 10 and the fixed magnet 11 will be attracted to each other, thereby fixing the position where the shell 8 enters, so that the charging copper sheet 12 installed on the bottom surface of the shell 8 and the contact copper sheet 6 installed on the top surface of the charger 5 are in contact with each other. Because the charger 5 and the contact copper sheet 6 are electrically connected, when the two are in contact with each other, the contact copper sheet 6 will input the electric energy of the power cord 7 into the battery 13 through the charging copper sheet 12, and then the battery 13 will store the electric energy, thereby achieving the charging effect.
[0029] When the reader is to be used alone, the shell 8 is pulled out from between the limit plates 3, and one side surface of the shell 8 is pressed against the one side surface of the metal. When the shell 8 is pressed against the metal, the adsorption magnet 10 installed on the one side surface of the shell 8 will be adsorbed on the one side surface of the metal, thereby fixing the shell 8 in a specific position. When the user brings the card close to the one side surface of the shell 8, the object sensor 16 installed on the inner wall of the shell 8 will detect the approach of the object, and because the object sensor 16 is electrically connected to the controller 14, the controller 14 will control the battery 13 to power on the reader, so that the reader generates a magnetic field to read the card. When the reading is completed, because the controller 14 is electrically connected to the timer 15, the timer 15 will enter a countdown. When the countdown is completed, the timer 15 will cut off the power to the battery 13 again through the controller 14, so that the battery 13 no longer supplies power to the reader, so that the reader will only start and read the card when the card is close, thereby saving the power of the reader.
Claims
1. A radio frequency reader / writer, comprising a base plate (1) and a fixing hole (2), wherein the fixing hole (2) is provided on a side surface of the base plate (1), characterized in that: A limit plate (3) is installed on one side surface of the base plate (1), a limit block (4) is installed on the inner wall of the limit plate (3), a charging component is installed on one side surface of the base plate (1), and a reader / writer component is installed on one side surface of the base plate (1).
2. A radio frequency reader according to claim 1, characterized in that: The fixing holes (2) are four and are evenly spaced in a linear array on one side surface of the bottom plate (1); the limiting blocks (4) are two and are distributed on one side and the other side surface of the inner wall of the limiting plate (3).
3. The radio frequency reader according to claim 1, characterized in that: The charging assembly comprises a charger (5), a contact copper sheet (6) is mounted on the top surface of the charger (5), a power cord (7) is mounted on the bottom surface of the charger (5), and the charger (5) is mounted on a side surface of the bottom plate (1).
4. A radio frequency reader according to claim 3, characterized in that: There are five contact copper sheets (6), which are evenly distributed in a linear array on the top surface of the charger (5). The contact copper sheets (6) are electrically connected to the charger (5), and the power cord (7) is electrically connected to the charger (5).
5. The radio frequency reader according to claim 1, characterized in that: The reader / writer assembly comprises a shell (8), a limiting groove (9) is installed on one side surface of the shell (8), an adsorption magnet (10) is installed on one side surface of the shell (8), a fixing magnet (11) is installed on one side surface of the bottom plate (1), a charging copper sheet (12) is installed on the bottom end surface of the shell (8), a battery (13) is installed on the inner wall of the shell (8), a controller (14) is installed on the inner wall of the shell (8), a timer (15) is installed on the inner wall of the shell (8), an object sensor (16) is installed on the inner wall of the shell (8), and the shell (8) is installed on one side surface of the bottom plate (1).
6. A radio frequency reader according to claim 5, characterized in that: One side surface of the shell (8) is in active contact with one side surface of the bottom plate (1); the limiting grooves (9) are two equidistantly distributed on one side and the other side surface of the shell (8); the inner wall of the limiting groove (9) is in active contact with the outer side surface of the limiting plate (3); the adsorption magnets (10) are four equidistantly distributed in a linear array on one side surface of the shell (8); the fixed magnets (11) are four equidistantly distributed in a linear array on one side surface of the bottom plate (1); and the adsorption magnets (10) and the fixed magnets (11) are in contact with each other.
7. The radio frequency reader according to claim 5, characterized in that: The charging copper sheet (12) and the contact copper sheet (6) are in contact with each other, the charging copper sheet (12) and the battery (13) are electrically connected, the battery (13) and the controller (14) are electrically connected, the controller (14) and the object sensor (16) are electrically connected, and the controller (14) and the timer (15) are electrically connected.