Keyboard, input method and coded lock system

Abstract

The invention discloses a keyboard, an input method and a coded lock system, and belongs to the technical field of computers. The keyboard comprises a plurality of keys; each key comprises a radio frequency identification tag; the radio frequency identification tag comprises a tag antenna and a tag chip; aiming at each key, the tag chip is configured to be electrically connected with the tag antenna under the condition that the key is pressed down, so that the target code stored by the tag chip is sent to the radio frequency identification reader-writer under the triggering of a signal which is received by the tag antenna and is sent by the radio frequency identification reader-writer; the target device obtains input information corresponding to the key based on the target code; the target code is used for indicating the identity information of the key. According to the keyboard, the input method and the coded lock system, after the key is pressed down, the tag antenna of the key is electrically connected with the tag chip, and the tag chip sends the stored code corresponding to the key to the target equipment under the triggering of the signal received by the tag antenna, so that the circuit structure is simpler.

Description

Technical Field

[0001] The present application belongs to the field of computer technology, and in particular, relates to a keyboard, an input method and a password lock system. Background Art

[0002] The input system of an electronic device is used to realize data exchange between the electronic device and the outside. The above input system generally includes components such as input devices, connecting lines, and an information processing system inside the electronic device.

[0003] The keyboard is a common input device and is widely used in various electronic devices such as computers, mobile phones and tablet computers. A keyboard generally includes a circuit board, a connecting wire, an interface and a plurality of keys. By pressing different keys or a combination of keys, information such as characters, numbers or symbols can be input. Among them, each key generally includes a key cap and a spring. The key cap can usually be made of materials such as plastic or metal. After pressing and releasing the key, the spring generates a reaction force to restore the key cap to its initial position. A series of switches are provided on the circuit board, and each key can correspond to a switch. The connecting wire can be used to connect the circuit board and the above-mentioned electronic devices.

[0004] At present, the working principle of the keyboard is based on the scan code principle. After pressing a key, an electrical signal will be triggered, and the signal will be converted into a specific scan code through the switch on the circuit board. Each key corresponds to a unique scan code. After the scan code is transmitted to the above-mentioned electronic device through a connecting line, the above-mentioned electronic device can identify which key is pressed according to the scan code, and send the corresponding character, number or symbol to the application program, thereby realizing the input of the above-mentioned character, number or symbol. However, the internal circuit structure of the existing keyboard based on the scan code principle is relatively complicated. Summary of the invention

[0005] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a keyboard, an input method and a password lock system, wherein the circuit structure of the keyboard is simpler and the cost is lower.

[0006] In a first aspect, the present application provides a keyboard, the keyboard comprising: a plurality of keys; each of the keys comprising a radio frequency identification tag; the radio frequency identification tag comprising a tag antenna and a tag chip;

[0007] For each of the buttons, the tag chip included in the button is configured to be electrically connected to the tag antenna included in the button when the button is pressed, so that when triggered by a signal sent by the radio frequency identification reader / writer and received by the tag antenna included in the button, the target code stored in the tag chip included in the button is sent to the radio frequency identification reader / writer, so that the target device obtains the input information corresponding to the button based on the target code; the target code is used to indicate the identity information of the button; the target device is provided with the radio frequency identification reader / writer, or the target device is electrically connected to the radio frequency identification reader / writer.

[0008] According to the keyboard of the present application, after a key is pressed, the tag antenna of the key is electrically connected to the tag chip, and the tag chip, under the triggering of the radio frequency signal received by the tag antenna, sends the target code for indicating the identity information of the key stored in the tag chip itself to the target device, so that the target device can obtain the input information corresponding to the key according to the target code, which can simplify the internal circuit of the keyboard at the input end, and the circuit structure of the keyboard is simpler and the cost is lower, thereby simplifying the decoding process of the electronic device at the receiving end, and reducing the decoding time of the electronic device. In addition, whether the RFID tag of each key can work normally can be manually controlled, and the input of the code corresponding to the key can be realized by manually controlling the operation of the RFID tag, which has higher efficiency and shorter time consumption, and can save more power due to the ability to communicate the radio frequency signal.

[0009] According to an embodiment of the present application, the keyboard is further provided with a reader / writer antenna; the reader / writer antenna is used to broadcast the signal sent by the radio frequency identification reader / writer when electrically connected to the radio frequency identification reader / writer.

[0010] According to an embodiment of the present application, the RFID reader / writer periodically sends a signal.

[0011] According to one embodiment of the present application, for each of the keys, the tag chip included in the key is provided with a first conductive contact and a second conductive contact, and the tag antenna included in the key is provided with a third conductive contact and a fourth conductive contact; when the key is pressed, the first conductive contact contacts the third conductive contact, and the second conductive contact contacts the fourth conductive contact.

[0012] According to an embodiment of the present application, for each of the keys, when the key is pressed, the distance between the first conductive contact and the second conductive contact is equal to the distance between the third conductive contact and the fourth conductive contact.

[0013] According to one embodiment of the present application, the keyboard includes a bottom plate; each of the keys includes a key cap;

[0014] For each of the buttons, the tag antenna included in the button is arranged on the inner side of the keycap included in the button, and the tag chip included in the button is arranged on the bottom plate; or, the tag antenna included in the button is arranged on the bottom plate, and the tag chip included in the button is arranged on the inner side of the keycap included in the button.

[0015] According to one embodiment of the present application, each of the buttons is in a circular shape.

[0016] According to an embodiment of the present application, for each of the buttons, the tag antenna included in the button is in a circular ring shape, and the tag chip included in the button is in an arc shape.

[0017] According to an embodiment of the present application, the number of the keys is at least 10; the input information corresponding to the 10 keys is 0 to 9 respectively.

[0018] According to an embodiment of the present application, the target code is a user-defined code.

[0019] According to one embodiment of the present application, the target code includes a serial number of the radio frequency identification tag included in the button.

[0020] In a second aspect, the present application further provides an input method, applied to the keyboard as described in the first aspect above, the input method comprising:

[0021] For each key included in the keyboard, when the tag chip included in the key is electrically connected to the tag antenna included in the key, the tag chip receives a signal sent by the radio frequency identification reader through the tag antenna;

[0022] When triggered by the signal, the tag chip sends the target code stored in the tag chip to the RFID reader / writer, so that the target device obtains the input information corresponding to the key based on the target code; the target code is used to indicate the identity information of the key; the target device is provided with the RFID reader / writer, or the target device is electrically connected to the RFID reader / writer.

[0023] According to the input method of the present application, after a key is pressed, the tag antenna of the key is electrically connected to the tag chip, and the tag chip, under the triggering of the radio frequency signal received by the tag antenna, sends the target code for indicating the identity information of the key stored in the tag chip itself to the target device, so that the target device can obtain the input information corresponding to the key according to the target code, which can simplify the decoding process of the electronic device at the receiving end, reduce the decoding time of the electronic device, and improve the input efficiency. In addition, whether the RFID tag of each key can work normally can be manually controlled, and the input of the code corresponding to the key can be realized by manually controlling the working of the RFID tag, which has higher input efficiency, shorter time consumption, and can save more power due to the ability to communicate the radio frequency signal.

[0024] In a third aspect, the present application further provides an input method, applied to a target device, the input method comprising:

[0025] Sending a signal through a radio frequency identification reader / writer included in the target device or electrically connected to the target device;

[0026] When a target code is received through the radio frequency identification reader / writer, input information corresponding to a target key is obtained based on the target code; the target code is issued by the target key; the target code is used to indicate identity information of the target key; the target key is any key included in the keyboard described in the first aspect above.

[0027] According to the input method of the present application, when the target device receives the target code through the radio frequency identification reader, the input information corresponding to the target key is obtained based on the target code, which can simplify the decoding process of the electronic device at the receiving end, reduce the decoding time of the electronic device, and improve the input efficiency. In addition, whether the RFID tag of each key can work normally can be manually controlled, and the input of the code corresponding to the key can be realized by manually controlling the working of the RFID tag, which has higher input efficiency, shorter time consumption, and can save more power due to the ability to communicate the radio frequency signal.

[0028] In a fourth aspect, the present application further provides a password lock system, comprising: a password lock and the keyboard described in the first aspect above;

[0029] The keyboard is used to input a password;

[0030] The password lock is used to receive the password and unlock the lock when the password is correct.

[0031] According to the password lock system of the present application, by adopting the keyboard provided by any of the aforementioned embodiments, a safer and more efficient password input can be achieved.

[0032] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0034] Figure 1 It is one of the structural schematic diagrams of the keyboard provided in the embodiment of the present application;

[0035] Figure 2 is a schematic diagram of the structure of the tag chip provided in the embodiment of the present application;

[0036] Figure 3 is a schematic diagram of the structure of the tag antenna provided in an embodiment of the present application;

[0037] Figure 4 This is the second structural diagram of the keyboard provided in the embodiment of the present application;

[0038] Figure 5 This is one of the flow charts of the input method provided in the embodiment of the present application;

[0039] Figure 6 This is the second flow chart of the input method provided in the embodiment of the present application;

[0040] Figure 7 It is a structural diagram of the password lock system provided in the embodiment of the present application;

[0041] Figure 8 It is a schematic diagram of the structure of the combination lock provided in the embodiment of the present application. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0043] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0044] In the related art, the keyboard transmits the scan code to an electronic device such as a computer through a connecting line. The way of transmitting the scan code between the keyboard and the electronic device varies depending on the interface used by the connecting line. For example, in the case of transmission through a USB interface, the connecting line is a USB cable, and the scan code will be converted into a series of data packets that comply with the USB protocol, and then transmitted to the electronic device through the USB cable.

[0045] After the electronic device receives the scan code transmitted from the keyboard, the operating system of the electronic device processes it. The operating system identifies which key is pressed based on the scan code and sends the corresponding character, number or symbol to the application or displays it on the screen.

[0046] The keyboard also generally has a feedback mechanism, that is, pressing and releasing a key will produce different feedback effects, such as sound, light or tactile feedback, etc. The above feedback mechanism can provide the user with a real-time interactive experience with the keyboard.

[0047] However, keyboard input technology requires a key scanning circuit inside the keyboard. When the number of keys included in the keyboard is large, the scanning circuit is more complicated and more expensive. In addition, after the operating system of the electronic device receives the scan code, it needs to decode the scan code to identify which key is pressed and determine the corresponding character, number or symbol, which consumes system resources.

[0048] The keyboard, input method and password lock system provided in the embodiments of the present application are described in detail below through specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0049] like Figure 1 As shown, a keyboard includes: a plurality of keys 110; each key 110 includes a radio frequency identification tag; the radio frequency identification tag includes a tag antenna and a tag chip.

[0050] In actual implementation, the keyboard may include a plurality of keys 110. The number of keys 110 included in the keyboard may be 61, 86, 87, 92, 96, 100, 101, 104, 106, 109, 110, 111, 114, 116, 117, 119 or 120, etc. Among them, the keyboards with the above number of 61, 86, 87, 92, 96, 100, 101, 104, 106, 109, 110, 111, 114, 116, 117, 119 or 120, etc., are generally used for inputting to electronic devices such as computers to efficiently input characters and numbers, etc.; the keyboards with the number of 10 to 20 can generally be used only for inputting numbers and some simple characters (such as "Enter", etc.). The embodiment of the present application does not limit the number of keys 110 included in the keyboard.

[0051] In some embodiments, the arrangement of the keys 110 included in the keyboard can adopt any common keyboard arrangement, such as a common 87-key keyboard or 104-key keyboard arrangement. The arrangement of the keys 110 included in the keyboard is not limited in the embodiments of the present application.

[0052] In some embodiments, each button 110 may include a radio frequency identification (RFID) tag. The RFID tag may be a passive RFID tag. The RFID tag may be composed of a tag chip (IC) and a tag antenna. The tag chip may have a data storage area inside. The data storage area may be used to store the target code of the button 110. The target code may be unique, and thus may be used to indicate the identity of the button 110, so that the button 110 may be identified according to the target code. The tag antenna may be responsible for the transmission and reception of radio frequency (RF) energy (specifically, may be carried by an RF signal). The RF energy received by the tag antenna is transmitted to the tag chip, and the energy conversion circuit inside the tag chip may convert the above RF energy into electrical energy to provide working power for the tag chip. It can be understood that the signal emitted by the RFID reader is an RF signal.

[0053] For each button 110, the tag chip included in the button 110 is configured to be electrically connected to the tag antenna included in the button 110 when the button 110 is pressed, so that when triggered by a signal sent by the radio frequency identification reader / writer and received by the tag antenna included in the button 110, the target code stored in the tag chip included in the button 110 is sent to the radio frequency identification reader / writer, so that the target device obtains the input information corresponding to the button 110 based on the target code; the target code is used to indicate the identity information of the button 110; the target device is provided with the radio frequency identification reader / writer, or the target device is electrically connected to the radio frequency identification reader / writer.

[0054] In actual implementation, the target device for inputting via the keyboard may be the aforementioned electronic devices such as computers, mobile phones, and tablet computers. The target device may be provided with an RFID reader, or the target device may be electrically connected to the RFID reader.

[0055] In some embodiments, the RFID reader can be in a working state all the time, and send instructions cyclically (generally periodically) to perform inventory of RFID tags. The above instructions can be sent using RF signals as carriers. RF signals have radio frequency energy. The initial state of each button 110 is a non-pressed state.

[0056] For any button 110, in the initial state, the tag chip included in the button 110 and the tag antenna included in the button 110 are in a separated state. The tag chip separated from the tag antenna cannot receive the radio frequency energy emitted by the RFID reader and cannot provide power to support the tag chip. Therefore, the RFID reader cannot receive the target code returned by the tag chip.

[0057] For any button 110, after the button 110 is pressed, the tag chip included in the button 110 is electrically connected to the tag antenna included in the button 110, and the entire RFID tag included in the button 110 is in a state where it can work normally and can wait for the RFID reader to exchange data with the RFID tag through radio frequency signals.

[0058] After a certain key 110 is manually pressed, it means that the tag chip and tag antenna included in the key 110 are combined together, and the tag antenna can receive the radio frequency energy emitted by the RFID reader, thereby providing power for the tag chip to support the tag chip to work after startup. After receiving the inventory instruction issued by the RFID reader, the tag can send the target code stored in its own data storage to the RFID reader in a wireless form (specifically, it can be a radio frequency form). The RFID reader can transmit the target code to the aforementioned electronic device to complete the transmission process of the code of a key 110, thereby completing the input process of a character, symbol or number.

[0059] It should be noted that the tag antenna plays a very important role in the passive RFID tag and is a prerequisite for the normal operation of the tag chip. The embodiment of the present application uses the normal operation of the tag antenna of the passive RFID tag to control whether the entire RFID tag is started, thereby realizing the wireless transmission function of the target code of the key 110.

[0060] It is understandable that the aforementioned electronic device can obtain the identity information of the pressed key 110 according to the received target code, thereby identifying which key 110 is pressed and obtaining the input information corresponding to the key 110. The input information may include the character, number or symbol corresponding to the key 110, such as the letter a, the number 9, the symbol % or the character "space", etc. The target code and the input information may correspond one to one, so the aforementioned electronic device can obtain the input information corresponding to the target code, and the process of obtaining the input information does not require more complicated decoding operations.

[0061] In some embodiments, a coded information can be sent wirelessly to a tag chip included in any button 110 through an RFID reader / writer, and the tag chip stores the received information in its own data storage area to form the coded information corresponding to the tag. The code determined according to the coded information can be used as the target code of the button 110.

[0062] According to the keyboard provided by the embodiment of the present application, after a certain key is pressed, the tag antenna of the key is electrically connected to the tag chip, and the tag chip, under the triggering of the radio frequency signal received by the tag antenna, sends the target code for indicating the identity information of the key stored in the tag chip itself to the target device, so that the target device can obtain the input information corresponding to the key according to the target code, which can simplify the internal circuit of the keyboard at the input end, and the circuit structure of the keyboard is simpler and the cost is lower, thereby simplifying the decoding process of the electronic device at the receiving end, and reducing the decoding time of the electronic device. In addition, whether the RFID tag of each key can work normally can be manually controlled, and the input of the code corresponding to the key can be realized by manually controlling the operation of the RFID tag, which has higher efficiency and shorter time consumption, and can save more power due to the ability to communicate the radio frequency signal.

[0063] In some embodiments, the keyboard is further provided with a reader / writer antenna; the reader / writer antenna 120 is used to broadcast the signal sent by the RFID reader / writer when electrically connected to the RFID reader / writer.

[0064] In actual implementation, the antenna of the RFID reader, i.e., the reader antenna, can be set on the keyboard. The RFID reader and the reader antenna can be set separately. The reader antenna is not set on the side of the RFID reader as in the related art, but can be set on the keyboard.

[0065] When the keyboard is in use, the reader antenna 120 can be electrically connected to the RFID reader through a radio frequency cable, so that the keyboard and the aforementioned electronic device are connected through a connecting line, and the radio frequency signal generated by the RFID reader can be emitted through the reader antenna 120. In some embodiments, the radio frequency signal can be emitted from the reader antenna 120 in the form of broadcast.

[0066] It should be noted that the reader / writer antenna 120 is arranged on the keyboard, and the distance between the reader / writer antenna 120 and the tag antenna included in each key 110 is closer, so that the transmission quality of the radio frequency signal emitted by the RFID reader / writer between the RFID reader / writer and the radio frequency identification tag included in each key 110 can be better. In addition, since the distance between the reader / writer antenna 120 and the tag antenna included in each key 110 is closer, each radio frequency identification tag can share one reader / writer antenna 120, and it is not necessary to arrange more antennas on the side of the RFID reader / writer to ensure the transmission quality of the radio frequency signal between the RFID reader / writer and each radio frequency identification tag.

[0067] It is understandable that the antenna of the aforementioned RFID reader-writer may also be disposed on one side of the RFID reader-writer as in the related art.

[0068] According to the keyboard provided in the embodiment of the present application, by setting the reader / writer antenna at the keyboard located at the input end, multiple keys can share one reader / writer antenna, which can reduce the complexity and cost of the system.

[0069] In some embodiments, the RFID reader sends out a signal periodically.

[0070] In actual implementation, the aforementioned RFID reader may periodically send out radio frequency signals to implement periodic sending of instructions for taking inventory of RFID tags.

[0071] In some embodiments, the period of the RFID reader-writer sending out the radio frequency signal can be in the millisecond level or shorter. The embodiment of the present application does not specifically limit the period of the RFID reader-writer sending out the radio frequency signal.

[0072] According to the keyboard provided in the embodiment of the present application, by periodically sending signals through the radio frequency identification reader / writer, it can be ensured that the target code corresponding to the pressed key can be promptly sent out by the tag chip included in the key and received by the electronic device, so that the input information corresponding to the key can be successfully input.

[0073] In some embodiments, reference Figure 2 and Figure 3 For each button 110, the tag chip included in the button 110 is provided with a first conductive contact 210 and a second conductive contact 220, and the tag antenna included in the button 110 is provided with a third conductive contact 230 and a fourth conductive contact 240; when the button 110 is pressed, the first conductive contact 210 contacts the third conductive contact 230, and the second conductive contact 220 contacts the fourth conductive contact 240.

[0074] In actual implementation, for each button 110, the tag chip included in the button 110 may include two terminals for connecting to the tag antenna included in the button 110. Accordingly, the tag antenna included in the button 110 may include two terminals for connecting to the tag chip included in the button 110.

[0075] In some embodiments, the two terminals of the tag chip may be in the form of contacts, respectively referred to as the first conductive contact 210 and the second conductive contact 220. Correspondingly, the two terminals of the tag antenna may also be in the form of contacts, respectively referred to as the third conductive contact 230 and the fourth conductive contact 240.

[0076] For each button 110, when the button 110 is pressed, after the two contacts of the tag chip come into contact with the two contacts of the tag antenna, the tag chip is electrically connected to the tag antenna, and the entire radio frequency identification tag included in the button 110 is in a state of being able to work normally and can wait for the RFID reader to interact with it through radio frequency signals for data.

[0077] According to the keyboard provided in the embodiment of the present application, when the key is pressed, the two contacts of the tag chip included in the key are respectively in contact with the two contacts of the tag antenna included in the key, the tag chip is electrically connected to the tag antenna, and the radio frequency identification tag included in the key can work normally, and it can be achieved by manually controlling whether the RFID tag of each key can work normally. By manually controlling the operation of the RFID tag, the input of the code corresponding to the key is realized, the input efficiency is higher, the time consumption is shorter, and because the radio frequency signal can be communicated, it can save more power.

[0078] In some embodiments, for each key 110 , when the key 110 is pressed, the distance between the first conductive contact 210 and the second conductive contact 220 is equal to the distance between the third conductive contact 230 and the fourth conductive contact 240 .

[0079] In actual implementation, for any button 110, when the button 110 is pressed, the distance between the two contacts of the tag chip included in the button is consistent with the distance between the two contacts of the tag antenna included in the button. In the embodiment of the present application, the consistent distances may include equal distances and approximately equal distances. Among them, approximately equal distances means that the difference between the above two distances is less than a preset threshold.

[0080] According to the keyboard provided in the embodiment of the present application, by ensuring that when the key is pressed, the distance between the first conductive contact and the second conductive contact is equal to the distance between the third conductive contact and the fourth conductive contact, it can be ensured that when the key is pressed, the two contacts of the tag chip included in the key are respectively in contact with the two contacts of the tag antenna included in the key, and the tag chip is electrically connected to the tag antenna, which can improve the effectiveness and accuracy of the input.

[0081] In some embodiments, reference Figure 1 The keyboard includes a base plate 130; each key 110 includes a key cap.

[0082] In actual implementation, the keyboard may be provided with a base plate 130 to carry the keys 110 and the reader / writer antenna 120 .

[0083] In some embodiments, each key 110 may also be provided with components such as a key cap and a spring to enable the key to be pressed and to bounce. It is understandable that the user can press the key cap of the key 110 so that the spring included in the key 110 is in a compressed state, the key 110 is pressed, and the tag antenna and the tag chip included in the key 110 are electrically connected; after the user no longer presses the key cap of the key 110 or the user does not press the key cap of the key 110, the spring included in the key 110 is in a released state, the key 110 is not pressed, the tag antenna and the tag chip included in the key 110 are separated, and the two are not electrically connected.

[0084] For each key 110, the tag antenna included in the key 110 is arranged on the inner side of the keycap included in the key 110, and the tag chip included in the key 110 is arranged on the base plate 130; or, the tag antenna included in the key 110 is arranged on the base plate 130, and the tag chip included in the key 110 is arranged on the inner side of the keycap included in the key 110.

[0085] In actual implementation, for any button 110, the tag antenna and tag chip included in the button 110 can be respectively arranged on the inner side of the keycap included in the button 110 and the bottom plate 130, so that when the button 110 is not pressed, the tag antenna and tag chip included in the button 110 are separated and the two are not electrically connected.

[0086] According to the keyboard provided in the embodiment of the present application, the tag antenna and the tag chip included in the key can be respectively arranged on the inner side and the bottom plate of the keycap included in the key, so that when the key is not pressed, the tag antenna and the tag chip included in the key are separated and the two are not electrically connected, and the radio frequency identification tag included in the key does not work, which can reduce the situation of erroneous input.

[0087] In some embodiments, reference Figure 1 and Figure 4, each button 110 is in the shape of a ring.

[0088] In actual implementation, the overall shape of each button 110 may be a circular ring.

[0089] In some embodiments, reference Figure 4 The keyboard may include a plurality of annular keys 110 to form a ring-shaped keyboard.

[0090] According to the keyboard provided in the embodiment of the present application, costs can be saved by setting the keys in a circular ring shape.

[0091] In some embodiments, reference Figure 4 For each button 110 , the tag antenna 410 included in the button 110 is in a circular ring shape, and the tag chip 420 included in the button 110 is in an arc shape.

[0092] In actual implementation, refer to Figure 4 For each button 110, the tag antenna 410 included in the button 110 may be in a circular ring shape, and the tag chip 420 included in the button 110 may be in an arc shape. In some embodiments, the arc shape may have an inner diameter and an outer diameter equal to the circular ring shape.

[0093] According to the keyboard provided in the embodiment of the present application, by setting the tag antenna of each key to a circular ring shape and setting the tag chip to an arc shape, it is more convenient for users to carry.

[0094] In some embodiments, the number of keys 110 is at least 10; the input information corresponding to the 10 keys 110 is 0 to 9 respectively.

[0095] In actual implementation, the keyboard may include no less than 10 keys 110 , wherein the input information corresponding to the 10 keys 110 are numbers 0 to 9 respectively.

[0096] According to the keyboard provided in the embodiment of the present application, the keyboard includes 10 keys whose corresponding input information is numbers 0 to 9, which can achieve more convenient input of numbers.

[0097] In some embodiments, the target encoding is a user-defined encoding.

[0098] In actual implementation, for each key 110, the target code stored in the tag chip can be a user-defined code that meets the uniqueness requirement, thereby indicating the identity information of the key 110. Meeting the uniqueness requirement means that the target codes stored in any two tag chips included in the same keyboard are different.

[0099] In some embodiments, a custom code may be sent to the tag chip included in each button 110 through the aforementioned RFID reader / writer, and the tag chip may store the custom code as the target code.

[0100] According to the keyboard provided in the embodiment of the present application, the target code is a user-defined code, and the target code is defined by the user. Even if the radio frequency signal sent by the tag chip to the electronic device is leaked, the input information will not be leaked, thereby improving the security of the input.

[0101] In some embodiments, the target code includes a serial number of a radio frequency identification tag included with the key.

[0102] In actual implementation, for each button 110, a part of the custom code used in the target code may adopt the serial number (ID) of the RFID tag included in the button 110. It is understandable that each RFID tag has a globally unique serial number, which is used as part of the custom code to provide higher security.

[0103] In some embodiments, in addition to the serial number of the RFID tag, other parts of the custom code used in the target code may use at least one of other digital information such as the keyboard manufacturer's identification, the keyboard model identification, the production date of the keyboard and / or keys, and random codes.

[0104] According to the keyboard provided in the embodiment of the present application, the security of input can be further improved by including the serial number of the radio frequency identification tag included in the key in the target code.

[0105] The present application also provides an input method. The input method can be applied to the keyboard provided in any of the above embodiments of the present application. Figure 5 , the input method may include: step 510 and step 520.

[0106] Step 510: For each key included in the keyboard, when the tag chip included in the key is electrically connected to the tag antenna included in the key, the tag chip receives a signal sent by the radio frequency identification reader through the tag antenna.

[0107] In actual implementation, the RFID reader can send instructions cyclically (generally periodically) to perform inventory of RFID tags. The above instructions can be sent using RF signals as carriers.

[0108] For each key included in the keyboard, when the key is not pressed, the tag chip included in the key is not electrically connected to the tag antenna included in the key, and the tag chip cannot receive the above RF signal through the tag antenna, and cannot work based on the energy provided by the above RF signal. When the key is not pressed, the tag chip included in the key is electrically connected to the tag antenna included in the key, and the tag chip can receive the above RF signal through the tag antenna, so the tag chip can work based on the energy provided by the above RF signal.

[0109] Step 520: When triggered by the signal, the tag chip sends the target code stored in the tag chip to the RFID reader / writer, so that the target device obtains the input information corresponding to the key based on the target code; the target code is used to indicate the identity information of the key; the target device is provided with the RFID reader / writer, or the target device is electrically connected to the RFID reader / writer.

[0110] In actual implementation, the tag chip works based on the energy provided by the RF signal, which can mainly include sending the target code stored in itself to the RFID reader in a wireless form (specifically, in a radio frequency form) under the triggering of the aforementioned instruction carried by the RF signal. The RFID reader can transmit the target code to the aforementioned electronic device to complete the transmission process of the code of a key 110, thereby completing the input process of a character, symbol or number.

[0111] According to the input method provided by the embodiment of the present application, after a certain key is pressed, the tag antenna of the key is electrically connected to the tag chip, and the tag chip, under the triggering of the radio frequency signal received by the tag antenna, sends the target code for indicating the identity information of the key stored in the tag chip itself to the target device, so that the target device can obtain the input information corresponding to the key according to the target code, which can simplify the decoding process of the electronic device at the receiving end, reduce the decoding time of the electronic device, and improve the input efficiency. In addition, whether the RFID tag of each key can work normally can be manually controlled, and the input of the code corresponding to the key can be realized by manually controlling the operation of the RFID tag, which has higher input efficiency, shorter time consumption, and can save more power due to the ability to communicate the radio frequency signal.

[0112] The present application also provides an input method. The input method can be applied to the aforementioned target device. Figure 6 , the input method may include: step 610 and step 620.

[0113] Step 610: Send a signal through a radio frequency identification reader / writer included in the target device or electrically connected to the target device.

[0114] In actual implementation, the target device may include an RFID reader or the target device may be electrically connected to an RFID reader. The target device may control the RFID reader to cyclically (generally periodically) send instructions to perform inventory of RFID tags. The above instructions may be sent using RF signals as carriers.

[0115] Step 620: when the target code is received through the radio frequency identification reader / writer, the input information corresponding to the target key is obtained based on the target code; the target code is issued by the target key; the target code is used to indicate the identity information of the target key; the target key is any key included in the keyboard provided in any of the aforementioned embodiments of the present application.

[0116] In actual implementation, for each key pressed on any of the aforementioned keyboards, the tag chip included in the key can receive the above RF signal through the tag antenna included in the key, so that the tag chip can work based on the energy provided by the above RF signal. The tag chip works based on the energy provided by the above RF signal, which can mainly include sending the target code stored in itself to the RFID reader in a wireless form (specifically, in a radio frequency form) under the triggering of the aforementioned instruction carried by the RF signal. The RFID reader can transmit the target code to the aforementioned electronic device to complete the transmission process of the code of a key 110, thereby completing the input process of a character, symbol or number.

[0117] At the input receiving end, the target device can receive the target code through the RFID reader / writer, and thus can obtain the identity information of the pressed key 110 according to the received target code, thereby identifying which key 110 is pressed and obtaining the input information corresponding to the key 110.

[0118] According to the input method provided by the embodiment of the present application, when the target device receives the target code through the radio frequency identification reader, the input information corresponding to the target key is obtained based on the target code, which can simplify the decoding process of the electronic device at the receiving end, reduce the decoding time of the electronic device, and improve the efficiency of input. In addition, the RFID tag of each key can be manually controlled to see whether it can work normally, and the input of the code corresponding to the key can be realized by manually controlling the operation of the RFID tag, which has higher efficiency and shorter time consumption, and can save more power due to the ability to communicate the radio frequency signal.

[0119] The present application also provides a password lock system. Figure 7 The password lock system may include: a password lock 710 and a keyboard 720 provided in any of the aforementioned embodiments of the present application.

[0120] In actual implementation, the password lock system may include a password lock 710 and a keyboard 720. The keyboard 720 may be the keyboard provided in any of the aforementioned embodiments of the present application.

[0121] In some embodiments, the keyboard 720 may be Figure 4 The keyboard shown is more convenient for users to carry.

[0122] Keyboard 720 is used to input a password.

[0123] In actual implementation, the user can operate the keyboard 720 to input the password using the aforementioned input method.

[0124] The password lock 710 is used to receive a password and unlock the door when the password is correct.

[0125] In actual implementation, the password lock 710 may include a radio frequency identification reader and a reader antenna, so as to receive the password input by the user through the keyboard 720. The password lock 710 can verify whether the password is correct, unlock the door if the password is correct, and keep the lock closed if the password is wrong.

[0126] In some embodiments, during the password setting stage, the password lock 710 can also set the password input by the user through the keyboard 720 as the password for unlocking.

[0127] In some embodiments, reference Figure 8 , the combination lock 710 may include a power supply ( Figure 8 ), mechanical control part 810, main control unit 820, RFID reader 830 and reader antenna 840. Main control unit 820 can be used to set a password; after the password is set, determine whether the password input through keyboard 720 is correct; based on whether the input password is correct, control whether the mechanical control part 810 performs an unlocking action; and control the mechanical control part 810 to perform a locking action.

[0128] In some embodiments, the RFID reader 830 can be in a low-power scanning state all the time, and detect in real time whether there is an RFID tag in the radiation area of ​​the reader antenna 840. Figure 4 The tag chip of the ring-shaped keyboard shown (can be expressed as a slip ring, such as Figure 4 The tag chip 420 in the keyboard is used to realize the connection of the tag antennas of different buttons and the establishment of the working state (that is, when the button is pressed, the tag chip 420 is electrically connected to the corresponding tag antenna 410); by dialing the order of the slip rings on the keyboard, the sequence transmission of the target code is realized.

[0129] It should be noted that, for the above-mentioned password lock system, when the keyboard 720 is close to the password lock 710, the tag chip can be electrically connected to the corresponding tag antenna by operating the keys, so as to input the password.

[0130] According to the password lock system provided in the embodiment of the present application, by adopting the keyboard provided in any of the aforementioned embodiments, a safer and more efficient password input can be achieved.

[0131] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0132] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

[0133] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0134] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A keyboard, characterized in that: include: A plurality of buttons; each of the buttons comprises a radio frequency identification tag; the radio frequency identification tag comprises a tag antenna and a tag chip; For each of the buttons, the tag chip included in the button is configured to be electrically connected to the tag antenna included in the button when the button is pressed, so that when triggered by a signal sent by the radio frequency identification reader / writer and received by the tag antenna included in the button, the target code stored in the tag chip included in the button is sent to the radio frequency identification reader / writer, so that the target device obtains the input information corresponding to the button based on the target code; the target code is used to indicate the identity information of the button; the target device is provided with the radio frequency identification reader / writer, or the target device is electrically connected to the radio frequency identification reader / writer.

2. The keyboard according to claim 1, characterized in that The keyboard is also provided with a reader / writer antenna; the reader / writer antenna is used to broadcast the signal sent by the RFID reader / writer when electrically connected to the RFID reader / writer.

3. The keyboard according to claim 2, characterized in that: The RFID reader / writer periodically sends out a signal.

4. The keyboard according to claim 1, characterized in that: For each of the keys, the tag chip included in the key is provided with a first conductive contact and a second conductive contact, and the tag antenna included in the key is provided with a third conductive contact and a fourth conductive contact; when the key is pressed, the first conductive contact contacts the third conductive contact, and the second conductive contact contacts the fourth conductive contact.

5. The keyboard according to claim 4, characterized in that: For each of the keys, when the key is pressed, the distance between the first conductive contact and the second conductive contact is equal to the distance between the third conductive contact and the fourth conductive contact.

6. The keyboard according to claim 1, characterized in that: The keyboard comprises a bottom plate; each of the keys comprises a key cap; For each of the buttons, the tag antenna included in the button is arranged on the inner side of the keycap included in the button, and the tag chip included in the button is arranged on the bottom plate; or, the tag antenna included in the button is arranged on the bottom plate, and the tag chip included in the button is arranged on the inner side of the keycap included in the button.

7. The keyboard according to claim 1, characterized in that: Each of the buttons is in the shape of a ring.

8. The keyboard according to claim 7, characterized in that: For each of the buttons, the tag antenna included in the button is in a circular ring shape, and the tag chip included in the button is in an arc shape.

9. The keyboard according to claim 7, characterized in that: The number of the keys is at least 10; the input information corresponding to the 10 keys is 0 to 9 respectively.

10. The keyboard according to any one of claims 1 to 9, characterized in that: The target code is a user-defined code.

11. The keyboard according to claim 10, characterized in that: The target code includes a serial number of the radio frequency identification tag included in the key.

12. An input method, characterized in that: Applied to the keyboard according to any one of claims 1 to 11, the input method comprises: For each key included in the keyboard, when the tag chip included in the key is electrically connected to the tag antenna included in the key, the tag chip receives a signal sent by the radio frequency identification reader through the tag antenna; When triggered by the signal, the tag chip sends the target code stored in the tag chip to the RFID reader / writer, so that the target device obtains the input information corresponding to the key based on the target code; the target code is used to indicate the identity information of the key; the target device is provided with the RFID reader / writer, or the target device is electrically connected to the RFID reader / writer.

13. An input method, characterized in that: Applied to the target device, the input method includes: Sending a signal through a radio frequency identification reader / writer included in the target device or electrically connected to the target device; When a target code is received through the radio frequency identification reader / writer, input information corresponding to a target key is obtained based on the target code; the target code is issued by the target key; the target code is used to indicate identity information of the target key; the target key is any key included in the keyboard as described in any one of claims 1 to 11.

14. A password lock system, characterized in that: include: A combination lock and a keyboard as claimed in any one of claims 1 to 11; The keyboard is used to input a password; The password lock is used to receive the password and unlock the lock when the password is correct.

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