CN112615954A

CN112615954A - Mobile terminal protective housing

Info

Publication number: CN112615954A
Application number: CN202010318901.0A
Authority: CN
Inventors: 奚永锋; 何源; 李成龙; 郝以杰; 曹国忠; 方明; 奚树力
Original assignee: Shenzhen Shuma Electronic Technology Co ltd
Current assignee: Shenzhen Shuma Electronic Technology Co ltd
Priority date: 2020-04-21
Filing date: 2020-04-21
Publication date: 2021-04-06

Abstract

The application provides a mobile terminal protective housing, can include: the radio frequency processing module is connected with the signal receiving and transmitting module; the signal transceiving module is used for receiving a first radio frequency signal sent by a target vehicle when the signal transceiving module is in an activated state; the radio frequency processing module is used for identifying and processing the first radio frequency signal according to a first radio frequency protocol so as to determine a second radio frequency signal corresponding to the first radio frequency signal; the signal transceiver module is further configured to send the second radio frequency signal to the target vehicle, where the second radio frequency signal is used to turn on or control the target vehicle. In the embodiment of the invention, the mobile terminal protective shell integrates the function of an automobile key and can be matched with vehicles of various types; and as the mobile terminal protection accessory commonly used, not only avoid carrying and losing of conventional car key, still richened the whole function of protective housing.

Description

Mobile terminal protective housing

Technical Field

The application relates to the field of automobiles, in particular to a mobile terminal protective shell.

Background

With the increase and popularization of automobile sales, driving and traveling become a transportation mode selected by more and more people. Each vehicle is equipped with a corresponding car key for opening the doors and starting the vehicle. Before using the vehicle each time, the driver needs to carry the corresponding car key to open the door and start the vehicle. Meanwhile, along with the gradual improvement of the functions of the mobile phone and the related accessories, the scheme of controlling the vehicle through the mobile phone or the accessories is also gradually appeared in the public life.

However, in daily work and life, the individual car keys are easy to lose and inconvenient to carry. Although the smart phone is a necessary communication tool in daily life, the smart phone cannot integrate a low-frequency communication module and a radio-frequency communication module required by an automobile smart key due to the limitation of a hardware circuit of the smart phone; and the same hardware module can only match the same type or similar types of automobiles, and can not meet the matching requirements of multiple types of automobiles.

Therefore, how to meet the requirement of a portable vehicle key matched with multiple vehicle types is the problem to be solved by the application.

Disclosure of Invention

The invention provides a mobile terminal protection shell, which is matched with various vehicle types to open and control vehicles of one or more vehicle types through a terminal protection shell integrating the function of an automobile key, and is used as a protection accessory of a common terminal, so that the carrying and the loss of a specific automobile key are avoided, and the overall function of the shell is enriched.

In a first aspect, an embodiment of the present invention provides a mobile terminal protection shell, including: the radio frequency identification device comprises a radio frequency identification module and a signal transceiving module connected with the radio frequency identification module; the signal transceiving module is used for receiving a first radio frequency signal sent by a target vehicle; the radio frequency identification module is used for identifying the first radio frequency signal according to a first radio frequency protocol; the signal transceiver module is further configured to send a second radio frequency signal corresponding to the first radio frequency signal to the target vehicle according to the first radio frequency signal, where the second radio frequency signal is used to turn on or control the target vehicle.

In a possible implementation manner, the mobile terminal protection shell further includes a radio frequency adjustment module; the radio frequency adjusting module is used for determining the identification range of the frequency of the first radio frequency signal and the frequency of the second radio frequency signal according to the type of the target vehicle. For example, after a certain type of vehicle is selected in the mobile phone application, the mobile phone application communicates with the radio frequency adjustment module of the mobile phone shell in a wireless or wired manner; the radio frequency adjustment module determines a frequency range (e.g., including one or more frequency bands) of the first radio frequency signal that can be identified based on the received data regarding the vehicle type. For example, the vehicle type is a Toyota new crown, and the vehicle type matched with the vehicle owner through the mobile phone application setting mobile phone shell (namely, the vehicle key) is the Toyota new crown; in the signal range that the car owner carries the cell-phone that is furnished with the cell-phone shell and gets into the vehicle, through the interaction of the vehicle with partial functional module of cell-phone shell, open the door of this vehicle.

In one possible implementation, a mobile terminal adapted to the mobile terminal protection case is matched with the mobile terminal protection case; the mobile terminal protection shell further comprises a communication module;

the communication module is used for interacting first data with the mobile terminal, and the first data is used for configuring a first radio frequency protocol in the communication process between the target vehicle and the mobile terminal protection shell.

In a possible implementation manner, the mobile terminal protection shell further includes a battery, a charging module connected to the battery, and a mobile terminal protection shell charging port connected to the charging module; the charging module is also connected with the signal transceiving module; the battery is used for supplying power to the signal transceiving module; the mobile terminal protection shell charging port is used for charging the battery under the condition that the mobile terminal protection shell is connected with an external power supply; under the condition that the mobile terminal protection shell is not connected with an external power supply, the mobile terminal charges the battery of the mobile terminal protection shell through the mobile terminal protection shell charging port. For example, a mobile phone (i.e. a mobile terminal) is connected to a USB port of a mobile phone shell (i.e. a charging port of a mobile terminal protection shell) through a charging wire, so as to be connected to the mobile terminal protection shell. Specifically, the cell-phone shell interface that charges connects the OTG and charges and switch the module, and the OTG charges the module and connects the battery. For example, when the charging interface of the mobile phone shell is connected to an external power supply, the OTG charging switching module processes the commercial power (220V for example) to charge the internal power supply of the mobile phone shell. For example, under the condition that the charging port of the mobile phone shell is not connected with an external power supply but the mobile phone shell is connected with the mobile phone in a matching manner, the mobile phone can be connected with the OTG charging switching module through the USB interface, and the OTG charging switching module is connected with a battery in the mobile phone shell; the OTG charging switching module switches the charging mode, so that the electric energy stored in the mobile phone battery charges the built-in battery of the mobile phone shell. Optionally, under the condition that the mobile terminal protection shell is not connected with an external power supply and the mobile terminal has sufficient electric quantity, the mobile terminal and the mobile terminal protection shell are connected through the wireless charging module, so that the mobile terminal can charge the battery in the protection shell.

In one possible implementation, the operating frequency of the first radio frequency signal includes one or more of 125Khz, 13.56Mhz, and 22 Khz.

In a possible implementation manner, the protective case of the mobile terminal further includes a radio frequency data copying module; the radio frequency data copying module is used for copying the radio frequency data of the first remote controller to generate coding information for replacing the first remote controller; the communication module is further configured to send the encoded information of the first remote controller to the mobile terminal.

In a possible implementation manner, the radio frequency data copying module is further used for copying data of an electronic tag or a contactless card.

In one possible implementation manner, the mobile terminal protection shell is applied to a mobile phone, a tablet computer, an electronic book reader and the like. Under the scene that the mobile terminal protective housing was applied to the cell-phone, the mobile terminal protective housing is the cell-phone shell.

In a second aspect, an embodiment of the present invention provides a mobile phone shell with a vehicle key function, which may include a radio frequency identification module, and a signal transceiver module connected to the radio frequency identification module; the signal transceiving module is used for receiving a first radio frequency signal sent by a target vehicle; the radio frequency identification module is used for identifying the first radio frequency signal according to a first radio frequency protocol; the signal transceiver module is further configured to send a second radio frequency signal corresponding to the first radio frequency signal to the target vehicle according to the first radio frequency signal, where the second radio frequency signal is used to turn on or control the target vehicle.

In the embodiment of the invention, the radio frequency signal of the automobile is received through the signal transceiving module arranged in the mobile phone shell; then, identifying the received radio frequency signal through a radio frequency identification module; and matching a preset radio frequency identification protocol according to the radio frequency signal and determining the radio frequency signal fed back to the automobile so as to open the automobile door or start the automobile. For example, when a driver carries a mobile phone shell and a mobile phone integrated with a car key function and enters a certain range of a target vehicle, the mobile phone shell receives a radio frequency signal sent by the car and feeds back a signal to the car through a corresponding circuit module to control the vehicle. By implementing the embodiment of the invention, the carrying of a specific automobile key is avoided and the functionality of the mobile phone shell is enriched.

In one possible implementation, the mobile phone shell further includes a radio frequency adjustment module; the radio frequency adjusting module is used for adjusting the frequency band of the second radio frequency signal according to the first radio frequency signal.

In one possible implementation, the mobile phone case further includes a communication module; the communication module is used for interacting first data with the mobile phone, and the first data is used for configuring a first radio frequency protocol in the communication process of the target vehicle and the mobile phone shell.

In one possible implementation, the mobile phone case further includes one or more keys and status indicator lights; the one or more keys are connected with the signal transceiving module; the state indicator light is connected with the signal transceiving module; the key is used for opening or closing the signal transceiving module; the state indicator lamp is used for indicating the working state of the signal transceiver module. Optionally, the PCB built in the mobile phone shell is connected with the keys and the status indicator lamp; the keys can be used for starting the key function of the mobile phone shell or corresponding to a specific control function; the status indicator lamp can show the electric quantity condition of the battery on the PCB, for example, the red light corresponds that the electric quantity is not enough, the green light corresponds that the electric quantity is full of, the yellow light corresponds that the electric quantity is sufficient.

In one possible implementation, the mobile phone shell further comprises a key storage; the key storage bin is used for storing spare keys of the target vehicle.

In one possible implementation manner, the mobile phone shell further comprises a battery, a charging module connected with the battery, and a mobile phone shell charging port connected with the charging module; the charging module is also connected with the signal transceiving module; the battery is used for supplying power to the signal transceiving module. Optionally, the battery is a small capacity lithium battery.

In one possible implementation, the first radio frequency signal is a low frequency signal or a high frequency signal.

In a possible implementation manner, the signal transceiver module is further configured to send a fourth radio frequency signal to the access control system according to a third radio frequency signal, where the fourth radio frequency signal is used to open the access control system.

In one possible implementation, the mobile phone shell further includes a radio frequency data replication module; the radio frequency data copying module is used for copying the radio frequency data of the first remote controller to generate coding information for replacing the first remote controller; the communication module is also used for sending the coding information of the first remote controller to a mobile phone. Optionally, the first remote controller is a universal radio frequency remote controller.

In a possible implementation manner, the radio frequency data copying module is further used for copying an electronic tag or a contactless card.

In a third aspect, an embodiment of the present invention provides a mobile terminal protective case, including: a housing, a Printed Circuit Board (PCB) and a cover plate; wherein the content of the first and second substances,

the inner side surface of the shell is provided with a groove, the PCB is arranged in the groove, and the cover plate covers the groove and is attached to the inner side of the shell; the PCB is provided with a battery installation part and an inductor installation part, and a signal transceiving module, a radio frequency identification module, a communication module and a radio frequency data copying module are arranged in the PCB;

the signal transceiving module is used for receiving a first radio frequency signal sent by a target vehicle;

the radio frequency identification module is used for identifying the first radio frequency signal according to a first radio frequency protocol;

the signal transceiving module is further configured to send a second radio frequency signal corresponding to the first radio frequency signal to the target vehicle according to the first radio frequency signal, where the second radio frequency signal is used to turn on or control the target vehicle;

the radio frequency data copying module is used for copying the radio frequency data of the first remote controller to generate coding information for replacing the first remote controller;

the communication module is further configured to send the encoded information of the first remote controller to the mobile terminal.

In one possible implementation, the housing is provided with a handset housing charging port; the outer side surface of the shell is provided with an indicator light and one or more keys; the key storage bin is arranged in the shell and used for storing spare keys of the target vehicle.

In one possible implementation manner, the outer side surface of the shell is provided with an indicator light and one or more keys; wherein the outer side surface is contactless with the mobile terminal; the outer side surface is opposite the inner side surface; the key is used for opening or closing the signal transceiving module; the indicating lamp is used for indicating the working state of the signal transceiver module.

In a fourth aspect, an embodiment of the present invention provides a mobile terminal housing. Wherein the mobile terminal housing is an integral part of the mobile terminal. Optionally, the mobile terminal is a mobile phone, a tablet computer, an e-book reader, or the like.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the embodiments or the description of the prior art will be briefly described below.

Fig. 1 is a schematic view of an application scenario of a mobile phone shell with an automobile key function according to an embodiment of the present invention;

fig. 2 is a schematic functional architecture diagram of a mobile phone shell with a car key function according to an embodiment of the present invention;

fig. 3 is a schematic diagram of an internal module of a mobile phone case according to an embodiment of the present invention;

fig. 4 is an exploded schematic view of a physical structure of a mobile phone case cooperating with a mobile phone according to an embodiment of the present invention;

fig. 5 is a schematic partial structural view of a mobile phone case according to an embodiment of the present invention;

fig. 6 is a schematic structural diagram of a mobile phone provided in an embodiment of the present invention and cooperating with the mobile phone shell shown in fig. 5;

fig. 7 is a schematic view of a structure of an inner cover plate of a mobile phone case according to an embodiment of the present invention;

fig. 8 is a schematic diagram of a PCB structure of a mobile phone case according to an embodiment of the present invention;

fig. 9 is a schematic diagram of a first assembly structure of the PCB shown in fig. 8 according to an embodiment of the present invention;

fig. 10 is a schematic diagram of a second assembly structure of the PCB shown in fig. 8 according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all embodiments. All other embodiments that can be derived by a person skilled in the art from the embodiments given herein without making any creative effort shall fall within the protection scope of the present application.

The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.

The following describes the mobile terminal protection case in further detail with reference to the accompanying drawings. In the embodiment of the present invention, a description is given by taking a mobile terminal as a smart phone and a mobile terminal protective case as a mobile phone as an example.

Referring to fig. 1, fig. 1 is a schematic view of an application scenario of a mobile phone shell with a car key function according to an embodiment of the present invention; as shown in fig. 1, a scene a and a scene B are included; in the scene a and the scene B, each scene includes a vehicle 1 and a mobile phone 2 with a mobile phone case. In the scenario shown in fig. 1, the signal transmission/reception range 3 of the vehicle 1 is a circular area with the vehicle 1 as the center and r as the signal radius. The embodiment of the invention does not limit the signal transceiving range of the vehicle. Alternatively, a certain area of the signal transmission/reception range may be set in each of the trunk, the driver's seat door, and the passenger door of the vehicle 1.

In a scenario a, when the mobile phone with the mobile phone case according to the embodiment of the present invention is outside the signal transceiving range of the vehicle 1, the vehicle 1 is in a locked state. The locked state may include door lock and engine lock. Alternatively, the vehicle 1 is automatically locked again for a period of time after the mobile phone 2 fitted with the mobile phone case has left the signal range 3.

In the scene B, when the mobile phone 2 (a mobile phone cooperating with the mobile phone shell, which will not be described later) appears in the signal range 3 of the vehicle 1 (i.e. the scene a is changed into the scene B), the mobile phone 2 cooperating with the mobile phone shell may receive the radio frequency signal sent by the vehicle 1, and then feed back the radio frequency signal meeting the requirement to the vehicle 1 according to the received radio frequency signal and the radio frequency protocol to start the vehicle 1. Or, in a certain range (namely, the signal range 3) away from the vehicle, the user presses the key of the mobile phone shell to activate the signal receiving module of the mobile phone shell, and then the corresponding signal is fed back after the low-frequency signal sent by the vehicle is received, so that the vehicle is started and enters.

It should be noted that the application scenario is only an exemplary scenario description; the application scenarios related to the embodiments of the present invention include, but are not limited to, the above application scenarios.

Referring to fig. 2, fig. 2 is a schematic diagram of a functional architecture of a mobile phone case with a car key function according to an embodiment of the present invention; as shown in fig. 2, the mobile phone case 10 includes a signal transceiving module 101, an rfid module 102, an rf adjusting module 103, a communication module 104, keys 105, an indicator light 106, a battery 107, a charging module 108, and an rf data copying module 109. The signal receiving module 101 is connected with the radio frequency identification module 102; the radio frequency adjusting module 103 is connected with the radio frequency identification module 102; the communication module 104 is connected with the signal transceiver module 101; the key 105 and the indicator lamp (or the status indicator lamp) 106 are connected with the signal transceiver module 101; the battery 107 is connected with the signal transceiving module 101; the charging module 108 is connected with the battery 107; the rf data copying module 109 is connected to the signal transceiver module 101. It can be understood that, in the embodiment of the present invention, the signal transceiver module 101 has certain data processing and storing functions, and is equivalent to a signal transceiver module integrated with a processing function.

The signal transceiver module 101 is configured to receive a first radio frequency signal sent by a target vehicle. Specifically, a signal receiving and transmitting module built in the mobile phone shell receives a first radio frequency signal from a vehicle after the mobile phone shell approaches a target vehicle (namely, a vehicle matched with a vehicle key provided by the mobile phone shell) or is within a certain distance range of the target vehicle; the first radio frequency signal can be a low frequency signal or a signal with a certain frequency; this is not a limitation of the present application.

The signal transceiver module 101 is further configured to send, according to the first radio frequency signal, a second radio frequency signal corresponding to the first radio frequency signal to the target vehicle, where the second radio frequency signal is used to turn on or control the target vehicle. For example, after receiving the signal transmitted by the vehicle a and transmitting the signal to the vehicle a, a feedback signal is transmitted to the vehicle a to open the doors of the vehicle a, thereby allowing the driver or other persons to enter the vehicle a.

Optionally, the signal transceiver module 101 is further configured to send a fourth radio frequency signal to an access control system according to the third radio frequency signal, where the fourth radio frequency signal is used to open the access control system. Wherein, the third radio frequency signal is the radio frequency signal that access control system sent to the cell-phone shell for activate the cell-phone shell or trigger the cell-phone shell. The fourth radio frequency signal is a radio frequency signal which is fed back by the mobile phone shell and used for opening the entrance guard after receiving the signal sent by the entrance guard. It is understood that the signal transceiver module can also be applied to other similar scenarios, such as radio frequency remote control, payment, and identification.

A radio frequency identification module 102, configured to identify the first radio frequency signal according to a first radio frequency protocol; specifically, the rfid module 102 identifies a first rf signal from the plurality of signals according to the received first rf signal and a preset first rf protocol. Optionally, the radio frequency identification module is used for simulating radio frequency protocols of one or more radio frequency signals in different frequency bands, and each radio frequency protocol is used for identifying corresponding radio frequency signals, so that the radio frequency signals of the same class can be accurately interacted, and data interference of other signals is avoided. For example, the car key function of the mobile phone case is in a dormant state; when the mobile phone case enters the detection range (i.e., the signal transceiving range) of the target vehicle, the car key function of the mobile phone case is activated. Alternatively, the car key function of the handset housing is activated when the handset housing is within detection range of the target vehicle and a particular trigger condition is met (e.g., an infrared signal on the door handle of the target vehicle or a microswitch activated by the car handle device). When the mobile phone shell receives a low-frequency signal sent by a target vehicle and the low-frequency signal is matched with the key function module of the mobile phone shell, the key function module of the mobile phone shell is awakened from a dormant state; the key function module analyzes a low-frequency signal of a target vehicle, processes the low-frequency signal according to a preset algorithm, and then generates a feedback signal corresponding to the low-frequency signal; the target vehicle receives and analyzes the feedback signal and compares the feedback signal with a reference signal; and controlling the door of the target vehicle to be opened or the vehicle to be started under the condition that the feedback signal is matched with the reference signal. Alternatively, the reference signal may be a signal estimated by the target vehicle from a low-frequency signal transmitted by the target vehicle, or information related to the reference signal may be stored in a system of the target vehicle in advance.

The specific wake-up and response process between the car and the mobile phone shell may include the following: a base station unit (or other units) of the automobile sends a low-frequency message coded as 125Khz according to a certain frequency to search and wake up a transponder (corresponding to a mobile phone shell) in a certain range; if the automobile fails to receive the response signal sent back by the transponder for a long time, the automobile enters a dormant state for a period of time and then transmits a wake-up signal. Once the transponder on the owner of the vehicle identifies a legal wake-up signal, it will automatically send a radio frequency rolling code encoded message with a frequency of 433 Mhz. The base station unit decodes the message sent by the transponder after receiving the message, and controls the command execution mechanism to open the vehicle door if the message is successfully identified. If the automobile does not receive the response signal of the transponder after the automobile is unlocked, the automobile is locked when the automobile door is closed, and an alarm is given if the automobile door is not closed.

And the radio frequency adjusting module 103 is configured to adjust a frequency band of the second radio frequency signal according to the first radio frequency signal. Specifically, the rf adjustment module 103 generates a second rf signal according to the first rf signal and the first rf protocol, wherein the second rf signal conforms to the vehicle control characteristic. Continuously, the vehicle type and the target vehicle matched with the mobile phone shell are set through the radio frequency identification module 102, and meanwhile, the frequency of the second radio frequency signal needing to be fed back is determined through the radio frequency adjustment module 103.

The communication module 104 is configured to perform interaction of first data with the mobile phone shell, where the first data is used to configure a first radio frequency protocol in a communication process between the target vehicle and the mobile phone shell. The mobile phone shell performs data interaction with the mobile phone through the communication module 104. Optionally, the signal transceiver module may be a main functional module of the mobile phone shell, and may process and store data information; for example, the method can realize data updating of intelligent keys of various vehicle types, learning copy of a universal radio frequency remote controller and data configuration of 125Khz/13.56Mhz access cards by interacting with an application program at a mobile phone end.

One or more keys 105 are connected with the signal transceiving module; the indicator light 106 is connected with the signal transceiving module; the key is used for opening or closing the signal transceiving module; the indicator light (not shown in the structural diagram of the present application) is used to indicate the operating state of the signal transceiver module. One or more keys may be disposed on a back surface or other portions of the mobile phone case, which is not limited in the embodiments of the present invention.

Optionally, the mobile phone housing further comprises a key storage compartment for storing spare keys for the target vehicle. For example, in the event of a malfunction or failure of the car key of the handset housing, a vehicle spare key may also be readily accessible from the handset housing to normally start the vehicle.

A battery 107, a charging module 108 connected with the battery 107, and a charging port of the mobile phone case connected with the charging module 108; the charging module is also connected with the signal transceiving module; the battery is used for supplying power to the signal transceiving module. Alternatively, the battery 107 may be a small capacity lithium battery. Be provided with the charging mouth on the cell-phone shell and with the module of charging (or charging circuit) that battery 107 is connected, can charge the battery through the data charging wire that matches with the mouth that charges, be favorable to also can normally use this cell-phone shell to open the vehicle under general condition. Alternatively, the mobile phone housing integrated car key function may be an active radio frequency identification RFID, or a passive radio frequency identification RFID, or a semi-active RFID. The embodiment of the present invention is not limited thereto.

Optionally, in the case that the mobile phone shell is externally connected with a power supply, the external power supply is connected with a power supply interface (such as type-c or lighting interface) of the mobile phone shell through a power line, the power supply interface is connected with a power supply switching control circuit (such as an OTG switch module), and the power supply switching control circuit is connected with a battery of the mobile phone shell; the USB is connected with the power supply switching control module through a corresponding circuit structure on a built-in circuit board of the mobile phone shell; the USB structure of the mobile phone shell is connected with a charging interface of the mobile phone through a power line; under the condition that the mobile phone shell is connected with the external power supply, the external power supply charges a battery inside the mobile phone shell and a battery of the mobile phone.

Optionally, under the condition that the mobile phone shell is not connected with an external power supply, the USB interface of the mobile phone shell is connected with the charging interface of the mobile phone through a power line; at the moment, the power supply switching control module is switched to a mode of acquiring electric quantity from the mobile phone battery; under the condition that the electric quantity of the mobile phone battery is enough, the battery of the mobile phone charges the built-in battery of the mobile phone shell, and various necessary functions (such as the function of an automobile intelligent key) of the mobile phone shell can be guaranteed to normally operate.

A radio frequency data copying module 109, configured to copy radio frequency data of a first remote controller to generate encoded information that replaces the first remote controller; the communication module is also used for sending the coding information of the first remote controller to a mobile phone. In a possible implementation manner, the radio frequency data copying module is further used for copying an electronic tag or a contactless card. For example, partial remote control functions of the target radio frequency remote controller are copied and learned through the cooperation of keys of the mobile phone shell and the signal transceiving module, so that the partial functions are copied, and the mobile phone shell can be used for completing the operation of related functions without using a remote controller under special conditions.

In the embodiment of the invention, the carrying problem of the automobile intelligent key and the radio frequency identification RFID card is solved, the functions of the mobile phone shell and the automobile intelligent key are combined, and the intelligent keys and the radio frequency identification data of different vehicles are further set through a mobile phone application program, so that the intelligent key and the radio frequency identification data can be matched with a plurality of automobiles or electric bicycles with different types, and the intelligent key and the radio frequency identification data can also have the effect of simulating a residential area access card. Furthermore, the side surface or other parts of the mobile phone shell can be provided with an emergency key bin for storing automobile emergency keys, so that the function of opening the automobile door under emergency conditions is facilitated.

A specific internal structure of the mobile phone shell provided by the embodiment of the present invention is described below with reference to the functional architecture of the mobile phone shell shown in fig. 2. Referring to fig. 3, fig. 3 is a schematic diagram of an internal module of a mobile phone case according to an embodiment of the present invention; as shown in fig. 3, the built-in module of the mobile phone shell may include a charging interface 37 (C-type USB interface type-C or lightning interface lighting), a Universal Serial Bus (USB) interface 36, a smart card control module 31 (including a main control chip 302, an identification receiving circuit 301 and a radio frequency transceiver 303) for communicating with the mobile phone, a radio frequency identification processing unit 32 (taking radio frequency signal processing for 13.56Mhz as an example in the embodiment of the present invention), a charging switching module 33 (taking an OTG charging switching module as an example, corresponding to the charging module 108), a small-capacity lithium battery 34, a multifunctional key 35, and a light emitting diode LED (i.e. indicator light) 38; the identification receiving circuit 301 in the smart card control module is used for processing the radio frequency signal of 125 Khz. The mobile phone shell related in the embodiment of the invention comprises a mobile phone shell body matched with a target mobile phone; the mobile phone shell body comprises an inner side face and an outer side face; when the mobile phone shell is installed on the target mobile phone, the inner side face of the mobile phone shell is attached to the back face of the target mobile phone; the outer side surface is opposite to the inner side surface and is exposed at the outer side and contacted by a user. The inner side surface is provided with a groove for mounting the PCB and the battery. The main control chip 302 in the smart card control module may adopt a low-power 32-bit chip MAX 32626; the chip is provided with abundant peripheral resources and a powerful security coprocessor, and data security of the intelligent card control module is guaranteed. The 125Khz low-frequency receiving front-end circuit (namely, the identification receiving circuit) can adopt an NCF29A1 chip, the chip has 3-channel radio frequency identification (radio frequency identification of 125KHz can be carried out) and active low-frequency receiving functions, and an instruction set RISC integrated in the chip can simulate different radio frequency identification protocols by running different programs, so that data interaction between a vehicle and a key is realized, and the performance of keeping lower than standby power consumption (lower than 5 uA) is realized; under the condition of a passive low-frequency field, the specific low-power-consumption design of the NCF29A1 chip can realize the electronic anti-theft function of the engine of various vehicles and can simulate the 125Khz radio frequency identification function of an access card; the radio frequency transceiving function of the smart card control module can be realized through a PXQ7981 chip; generally, in an automobile intelligent key or Internet of Things (IOT) radio frequency control scene, a PXQ7981 chip supports 315/434/868 universal radio frequency transceiving in Industrial, Scientific and hospital (ISM) frequency bands, and the PXQ7981 chip has a phase-locked frequency synthesis circuit with fast frequency modulation, which is beneficial to being applied to a fast frequency modulation scene; the control circuit with its on-chip integrated antenna self-tuning supports multi-band applications, enabling control of different kinds of vehicles with the same hardware circuit. In addition, the special wake-up working mode and the original data output mode of the PXQ7981 chip are combined with a mobile phone application program to be beneficial to realizing the copy function of the universal radio frequency remote controller.

The intelligent card control module not only has the function of an automobile key, but also has the copying and editing functions of a universal radio frequency remote controller. The intelligent card control module completes the learning of radio frequency data of lamp remote control, entrance guard remote control, electric vehicle remote control and the like by utilizing a mobile phone application program, and further generates a rolling code or a fixed code corresponding to the original code to replace a learned universal radio frequency remote controller. For example, different learned remote controls and virtual buttons are selected by the cell phone application to control different remote control devices.

It should be noted that the rfid processing unit and the identification function in the identification receiving circuit correspond to the role of the rfid module 102. Identifies the receiving function of the receiving circuit and the role of the rf transceiver corresponding to the signal receiving module 101. The frequency modulation function of the rf transceiver corresponds to the rf adjustment module 103. The copy and learn functions of the smartcard module correspond to the radio frequency copy module 109.

It can be understood that the main control chip 302 built in the mobile phone shell is used as a core part of the smart card control module, and has a function of communicating with a mobile phone application program; the communication function corresponds to the communication module 104. Therefore, the communication mode of the intelligent card control module can be one or more of USB connection, Bluetooth connection or wireless network WIFI connection; in the embodiment of the present invention, the communication module 104 is connected through a USB interface, but the embodiment of the present invention does not limit a specific communication method. For example, when a USB interface is used as an interaction mode between the smart card control module and an application program of a mobile phone, the USB communication function on the smart card control module may be controlled by the main control chip MAX 32626.

The 13.56Mhz radio frequency identification processing unit can adopt a chip MF1IC S50, and can be applied to various application scenes such as copy of a cell access control IC/ID card, NFC electronic lock and the like by combining a 125Khz radio frequency identification function provided by NCF29a1 in the smart card control module. Optionally, part of the mobile phone, by means of its NFC reading function, may implement the copying of the NFC-like card by means of an application. In a specific possible embodiment, the battery 107 is a small-capacity lithium battery, and the charge switching module is an OTG charge switching module; the small-capacity lithium battery and the OTG charging switching module are both arranged inside the body of the mobile phone shell; and under the condition that the mobile phone charging interface is normally connected with an external power supply, the small-capacity lithium battery is charged through the OTG charging switching circuit. When the mobile phone is powered off, the intelligent card control module can supply power to continue working through the small-capacity lithium battery. The OTG charging switching module can be formed by chips such as a TS3USB221A-Q1 USB high-speed switching switch and a BQ25155 lithium battery linear charging. The OTG charging switching module (i.e. charging switching module) is controlled by the main control MAX32626 in the smart card control module.

Optionally, the back of the mobile phone shell (which is a position on the outer side surface or the outer surface) can be provided with a multifunctional key (i.e. the key 105) and a status indicator light (i.e. the indicator light 106) to enable the mobile phone shell to be operated independently without using a mobile phone application; the multifunctional key also has application functions of quickly starting response, frequency modulation and the like of a vehicle key, so that the convenience of using the mobile phone shell is improved; the embodiment of the invention does not limit the specific functions of the keys. A key slot (namely a key storage bin) is reserved on the side face of the mobile phone shell body, and the key slot can be used for placing a mechanical key required by automobile emergency unlocking. Optionally, the multifunctional key may also be disposed on a side surface of the mobile phone case or other parts of the mobile phone case; in the embodiment of the present invention, the multifunctional key is disposed on the side surface of the housing, but the specific location is not limited.

According to the mobile phone shell with the automobile intelligent key, provided by the embodiment of the invention, the intelligent card control module, the multifunctional keys, the function indicator lamp, the small-capacity lithium battery and the mobile phone shell data charging interface below the mobile phone shell body are arranged in the mobile phone shell body; the intelligent card control module is integrated with a programmable automobile intelligent key module, a 13.56Mhz radio frequency identification circuit and an antenna thereof, and an OTG charging control circuit; the intelligent card control module can interact with an application program of a mobile phone end in a Bluetooth or USB mode, and can realize data updating of intelligent keys of various vehicle types, learning copy of a universal radio frequency remote controller and data configuration of 125Khz/13.56Mhz access cards; the cell-phone interface accessible control circuit on the control panel that charges that sets up below cell-phone shell body realizes the same function with the cell-phone interface that charges. The mobile phone shell is used as a carrier of an automobile key and a radio frequency identification tag, so that the mobile phone can be effectively protected, the service life of the mobile phone is prolonged, control over various automobiles and access control systems can be flexibly realized, and daily articles are reduced in carrying. The functions of controlling the vehicle and replacing other remote control equipment by using the mobile phone are realized by combining the strong interaction function of the mobile phone application program and by adopting a high-integration-degree integration scheme on the premise of not excessively increasing the shell size and influencing the hand feeling.

The functional architecture of the mobile phone shell and the modules under the architecture are described above, and the various parts are described below in connection with a mobile phone shell structure; since the mobile phone has various models and different structures, only one of the models is taken as an example to explain the specific structure of the corresponding mobile phone shell.

Referring to fig. 4 to 8, fig. 4 is an exploded schematic view of a physical structure of a mobile phone case cooperating with a mobile phone according to an embodiment of the present invention; as shown in fig. 4, the handset 45 is mounted within the handset housing 40; the handset housing 40 also includes a key structure 41 and an overlay 44. And the handset housing 40 houses the PCB43 and the support board 42; wherein the support plate 42 is for supporting the PCB 43; when the PCB43 is a Flexible Printed Circuit (FPC), the strength of the PCB43 is enhanced and the chip mounting in the chip production process is facilitated; the PCB43 can be integrated with a signal transceiver module, a radio frequency identification module, a communication module and a radio frequency data copying module for enriching the functions of the mobile phone shell; for example, matching with a target vehicle to replace an automobile fob; copying a specific type of remote controller, and matching the remote controller with a mobile phone application to replace the remote controller; and copying the data of an access control card or other electronic tags which can be copied to open the access control or replace the corresponding electronic tags.

It is to be understood that the above-described structure is an exemplary structure provided by the embodiments of the present invention. The key structure 41 may be a part of the mobile phone case body 40. Or the key structure 41 is combined with a left elongated protrusion of the PCB 43. The cover plate 44 covers the circuit board for protection. Alternatively, the antenna integrated with the PCB43 may be integrated with the handset housing body 40 or elsewhere. The embodiment of the present invention is not limited thereto.

Referring to fig. 5, fig. 5 is a schematic view of a partial structure of a mobile phone case according to an embodiment of the present invention; as shown in fig. 5, key groups, namely a first key group 401 (corresponding to the key 105) and a second key group 402, are disposed on both the left side and the right side of the mobile phone case 40. The first key group 401 includes one or more keys; three keys are illustrated as an example. The first key set 401 corresponds to the multifunctional key in the foregoing embodiments, and is used to open the automobile door or activate the circuit module built in the mobile phone shell. For example, when the signal transceiving range of the target automobile is entered, a specific key in the first key group 401 is pressed to turn on the vehicle or start the vehicle. Alternatively, the key functions included in the first key group 401 may be set by a mobile phone application; for example, in the case where the first key group 401 includes a plurality of keys, pressing a certain key is used to turn on the vehicle. In the case where the first key group 401 has only one key, long pressing of the key for several seconds is used to turn on the vehicle or the like. It is to be understood that fig. 6 is a schematic structural diagram of a mobile phone provided in an embodiment of the present invention, which is cooperated with the mobile phone shell shown in fig. 5; in conjunction with the structure of the mobile phone 45 shown in fig. 6, the second key set 402 may also include three keys, specifically, a + key, a-key, and a power key, which are respectively used for increasing the volume, decreasing the volume, and powering the mobile phone.

Referring to fig. 7 to 8, fig. 7 is a schematic structural view illustrating a cover plate inside a mobile phone case according to an embodiment of the present invention; in the present embodiment, the cover plate 44 may be a steel plate, a plastic plate, a glass plate, or a plate made of other materials; in the embodiments of the present invention, the material of the cover plate is not limited, but a steel plate is used as an example. (ii) a Fig. 8 is a schematic diagram of a PCB structure of a mobile phone case according to an embodiment of the present invention. The back of the steel plate and the periphery of the steel plate shown in fig. 7 are provided with a plurality of connecting parts, so that the steel plate 44 covers the mobile phone shell 40 and is attached to the protruding part of the PCB43, and the steel plate can be fixed to be attached to the inner side face of the mobile phone shell. The steel plate (i.e., cover plate) shown in figure 7 overlies the PCB43 shown in figure 8 and abuts the inside of the handset housing for protection from the PCB built into the handset housing.

Referring to fig. 9-10, fig. 9 is a schematic diagram illustrating a first assembly of the PCB shown in fig. 8 according to an embodiment of the present invention; fig. 10 is a schematic diagram of a second assembly of the PCB of fig. 8 according to an embodiment of the present invention. Specifically, the integrated circuit board 80 may be composed of a two-layer structure. As shown in fig. 9 and 10, the board near the contact of the handset housing with the handset housing is the back support board 42 (illustrated in the embodiment of the invention as a 0.2mm thick steel sheet), and the side away from the contact of the handset housing with the cover board is the front PCB 43; the PCB43 on the front side is shown overlying the steel sheet 42 on the back side; since the upper right corner of the PCB43 incorporates a spatial volume of antenna (e.g., a 125Khz low frequency antenna for radio frequency identification required for automotive engine electronic theft protection and access control systems), the steel sheet 42 on the back side can be designed in an L-shape to avoid shadowing the antenna and can be supported without steel sheets at the antenna. The elongated metal protrusion on the left side of the front PCB43 is connected to the keys on the left side of the mobile phone case (i.e. the keys in the first key set) to ensure the normal use of the first key set. The circular protruded

portions

431 and 432 at the left side of the front PCB may be battery mounting portions for receiving a small-capacity lithium battery. The circular protrusion and the two rectangular protrusion portions 433 on the right lower corner of the front face may be inductor mounting portions for mounting inductors of corresponding shapes on the PCB.

In addition, in other specific embodiments, the mobile terminal protection shell according to the embodiments of the present invention may be in a shape that fits with a corresponding mobile terminal. For example, when the mobile terminal is a tablet computer, the size of the protective shell of the mobile terminal is matched with that of the tablet computer, and the rear lens and the side key positions of the tablet computer are matched with the protective shell. Symbol marks such as patterns and characters are generally arranged on the outer side surface of the mobile terminal protection shell, the inner side surface of the mobile terminal protection shell is in contact with the mobile terminal, and a circuit board for bearing the functions of an automobile intelligent key, an entrance guard or a remote controller is arranged in the inner side surface of the mobile terminal protection shell. A key storage groove can be further formed in the protective shell to accommodate an emergency key.

When the mobile terminal is an electronic book reader, the protective shell of the mobile terminal may be a protective shell or a protective cover adapted to the electronic book reader. When the back of the electronic book reader can be provided with a lens, the side face of the electronic book reader can be provided with a data or charging interface, a power key, a volume or brightness adjusting key, an earphone hole, a microphone hole, a loudspeaker hole and the like, and the protective shell is reasonably arranged at the corresponding position of the protective shell, so that the normal use of the electronic book reader is prevented from being hindered. A chip or a circuit module for bearing the function of the intelligent key of the automobile can be arranged in the protective shell.

It is understood that the mobile terminal category may include cell phones, notebooks, point of sale (points), and so on. No further description is given herein according to a specific mobile terminal type, and reference may be made to the related description of the mobile terminal protective case.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various equivalent modifications or substitutions within the technical scope of the present application, and these modifications or substitutions should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. A mobile terminal protective case, comprising: the radio frequency processing module is connected with the signal receiving and transmitting module;

the signal transceiving module is used for receiving a first radio frequency signal sent by a target vehicle when the signal transceiving module is in an activated state;

the radio frequency processing module is used for identifying and processing the first radio frequency signal according to a first radio frequency protocol so as to determine a second radio frequency signal corresponding to the first radio frequency signal;

the signal transceiver module is further configured to send the second radio frequency signal to the target vehicle, where the second radio frequency signal is used to turn on or control the target vehicle.

2. The protective case of claim 1, further comprising a radio frequency adjustment module; the radio frequency adjusting module is used for determining the identification range of the frequency of the first radio frequency signal and the frequency of the second radio frequency signal according to the type of the target vehicle.

3. The protective case of claim 1, wherein a mobile terminal compatible with the protective case mates with the protective case; the mobile terminal protection shell further comprises a communication module;

4. The protective case of claim 1, further comprising a battery, a charging module coupled to the battery, a protective case charging port coupled to the charging module; the charging module is also connected with the signal transceiving module;

the battery is used for supplying power to the signal transceiving module;

the mobile terminal protective shell charging port is used for charging the battery when the mobile terminal protective shell is connected with an external power supply.

5. The case of any one of claims 1-4, wherein the operating frequency of the first radio frequency signal comprises one or more of 125Khz, 13.56Mhz, and 22 Khz.

6. The case of claim 3, further comprising a radio frequency data replication module;

7. The protective case of claim 6, wherein the RF data copy module is further configured to copy data from an electronic tag or a contactless card.

8. A mobile terminal protective case, comprising: a housing, a Printed Circuit Board (PCB) and a cover plate; wherein the content of the first and second substances,

the inner side surface of the shell is provided with a groove, and the inner side surface is in contact with the mobile terminal; the PCB is arranged in the groove, and the covering plate covers the PCB and is attached to the inner side surface of the shell; the PCB is provided with a battery mounting part and an inductor mounting part; the PCB is internally provided with a signal transceiver module, a radio frequency identification module, a communication module and a radio frequency data copying module;

9. The protective case of claim 8, wherein the case is provided with a mobile terminal protective case charging port and a key storage compartment;

the mobile terminal protection shell charging port is used for charging the battery when the mobile terminal protection shell is connected with an external power supply;

the key storage bin is used for storing spare keys of the target vehicle.

10. A protective case for a mobile terminal according to any one of claims 8 or 9, wherein an indicator light and one or more keys are provided on the outer surface of the case; wherein the outer side surface is contactless with the mobile terminal; the outer side surface is opposite the inner side surface;

the key is used for opening or closing the signal transceiving module;

the indicating lamp is used for indicating the working state of the signal transceiver module.