CN112463659A

CN112463659A - Docking station identification detection circuit and terminal equipment

Info

Publication number: CN112463659A
Application number: CN202011361483.XA
Authority: CN
Inventors: 祁庆克
Original assignee: Nubia Technology Co Ltd
Current assignee: Lishui Power Supply Co of State Grid Zhejiang Electric Power Co Ltd
Priority date: 2020-11-27
Filing date: 2020-11-27
Publication date: 2021-03-09
Anticipated expiration: 2040-11-27
Also published as: CN112463659B

Abstract

The invention discloses a docking station identification detection circuit and a terminal device, wherein the circuit comprises: the detection circuit comprises a primary detection circuit, a switch circuit, a microcontroller and a secondary detection circuit, wherein the primary detection circuit is arranged on a terminal and comprises a Hall sensor, the switch circuit is connected with the primary detection circuit, the microcontroller is connected with the switch circuit, and the secondary detection circuit is arranged on a docking station, and when the terminal is plugged into the docking station, the secondary detection circuit is connected with the switch circuit. The docking station identification detection scheme with better durability is realized, the problems that the detection pins are covered by liquid, the detection pins and other low-level metal contact points form micro short circuits, electrochemical action occurs, metal electrochemical corrosion is formed, and the metal contact points are oxidized and corroded are avoided, and the durability of the equipment functions is improved.

Description

Docking station identification detection circuit and terminal equipment

Technical Field

The invention relates to the field of mobile communication, in particular to a docking station identification detection circuit and terminal equipment.

Background

In the prior art, with the continuous development of intelligent terminal devices, the application requirements of users on the extended functions and extended components of devices such as mobile phones are also higher and higher, for example, the current mobile phones implement function extension through Docking Stations (DOCKs), for example, audio, internet access, charging and the like are extended through docking stations, which greatly facilitates the use of users and also expands the functions of mobile phones. In design, docking station extensions often use POGO pins to make contact with metal contacts in design, enabling the relevant electrical communication of the handset and the accessory. A number of metal contacts are typically designed on the handset housing and POGO pins are designed on the docking station accessory.

Because the mobile phone needs to detect the insertion of the docking accessory, a detection pin needs to be designed on one metal contact point for detecting the insertion of the docking accessory; in principle, the detection pin designed on the metal contact point is an input signal, the state is a high level, after the accessory docking station is inserted, the grounding end on the docking station is communicated with the grounding end corresponding to the metal contact point of the mobile phone, the mobile phone is communicated on the docking station circuit, and then the high level signal on the mobile phone detection pin is pulled down by the docking station circuit, namely is set to a low level, so that the insertion of the accessory of the mobile phone docking station is informed.

However, since the high level exists on the detection pin of the metal contact of the mobile phone, the detection pin is covered by the liquid due to the wet hand contact in the process of using the mobile phone by a user, so that the detection pin and other low-level metal contacts form a micro short circuit, and generate an electrochemical action to form metal electrochemical corrosion, thereby causing oxidation corrosion of the metal contact. Thereby affecting the durability of the docking station and reducing the user experience to some extent.

Disclosure of Invention

In order to solve the technical defects in the prior art, the invention provides a docking station identification detection circuit, which comprises: the detection circuit comprises a primary detection circuit, a switch circuit, a microcontroller and a secondary detection circuit, wherein the primary detection circuit is arranged on a terminal and comprises a Hall sensor, the switch circuit is connected with the primary detection circuit, the microcontroller is connected with the switch circuit, and the secondary detection circuit is arranged on a docking station, and when the terminal is plugged into the docking station, the secondary detection circuit is connected with the switch circuit.

Optionally, a contact surface of the terminal with the docking station is determined, and the hall sensor is disposed on the contact surface of the terminal.

Optionally, in the primary detection circuit, a logic output signal is detected through a magnetic flux of the hall sensor, and a gate terminal of the switch circuit and an operating state of the switch circuit are controlled through the logic output signal.

Optionally, when the terminal is not close to the docking station, the hall sensor outputs a high level, the microcontroller outputs a high level to the switching circuit, the switching circuit is in a closed state, and the connection detection terminal connected to the switching circuit is in a low level.

Optionally, when the terminal is close to the docking station, the hall sensor outputs a low level, the microcontroller outputs a high level to the switching circuit, the switching circuit is in an on state, the connection detection end is in a high level, and the connection state of the terminal and the docking station starts to be detected through the connection detection end.

Optionally, a detection resistor is arranged in the secondary detection circuit, and after the detection of the connection state is started, the detection resistor is connected with the connection detection end.

Optionally, the detection resistor is grounded, the connection detection terminal is pulled down to a low level, and the microcontroller identifies a connection event once detecting that the switching circuit is switched from the high level to the low level.

Optionally, the microcontroller determines that the docking is valid according to the docking event, and starts the communication connection between the terminal and the docking station.

Optionally, the SWITCH circuit includes a P-type MOS transistor, an N-type MOS transistor, and a SWITCH circuit.

The invention also provides a terminal device, which comprises a docking station identification detection circuit for realizing the docking station identification detection circuit

The docking station identification detection circuit and the terminal equipment implement the invention, and the docking station identification detection circuit is provided, and comprises: the detection circuit comprises a primary detection circuit, a switch circuit, a microcontroller and a secondary detection circuit, wherein the primary detection circuit is arranged on a terminal and comprises a Hall sensor, the switch circuit is connected with the primary detection circuit, the microcontroller is connected with the switch circuit, and the secondary detection circuit is arranged on a docking station, and when the terminal is plugged into the docking station, the secondary detection circuit is connected with the switch circuit. The docking station identification detection scheme with better durability is realized, the problems that the detection pins are covered by liquid, the detection pins and other low-level metal contact points form micro short circuits, electrochemical action occurs, metal electrochemical corrosion is formed, and the metal contact points are oxidized and corroded are avoided, and the durability of the equipment functions is improved.

Drawings

The invention will be further described with reference to the accompanying drawings and examples, in which:

fig. 1 is a schematic diagram of a hardware structure of a mobile terminal according to the present invention;

fig. 2 is a communication network system architecture diagram provided by an embodiment of the present invention;

fig. 3 is a circuit diagram of a first embodiment of a docking station identification detection circuit of the present invention;

fig. 4 is a contact schematic diagram of a second embodiment of the docking station identification detection circuit of the present invention.

Detailed Description

It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, suffixes such as "module", "component", or "unit" used to denote elements are used only for facilitating the explanation of the present invention, and have no specific meaning in itself. Thus, "module", "component" or "unit" may be used mixedly.

The terminal may be implemented in various forms. For example, the terminal described in the present invention may include a mobile terminal such as a mobile phone, a tablet computer, a notebook computer, a palmtop computer, a Personal Digital Assistant (PDA), a Portable Media Player (PMP), a navigation device, a wearable device, a smart band, a pedometer, and the like, and a fixed terminal such as a Digital TV, a desktop computer, and the like.

The following description will be given by way of example of a mobile terminal, and it will be understood by those skilled in the art that the construction according to the embodiment of the present invention can be applied to a fixed type terminal, in addition to elements particularly used for mobile purposes.

Referring to fig. 1, which is a schematic diagram of a hardware structure of a mobile terminal for implementing various embodiments of the present invention, the mobile terminal 100 may include: RF (Radio Frequency) unit 101, WiFi module 102, audio output unit 103, a/V (audio/video) input unit 104, sensor 105, display unit 106, user input unit 107, interface unit 108, memory 109, processor 110, and power supply 111. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 1 is not intended to be limiting of mobile terminals, which may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.

The following describes each component of the mobile terminal in detail with reference to fig. 1:

the radio frequency unit 101 may be configured to receive and transmit signals during information transmission and reception or during a call, and specifically, receive downlink information of a base station and then process the downlink information to the processor 110; in addition, the uplink data is transmitted to the base station. Typically, radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, and the like. In addition, the radio frequency unit 101 can also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to GSM (Global System for Mobile communications), GPRS (General Packet Radio Service), CDMA2000(Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division duplex Long Term Evolution), and TDD-LTE (Time Division duplex Long Term Evolution).

WiFi belongs to short-distance wireless transmission technology, and the mobile terminal can help a user to receive and send e-mails, browse webpages, access streaming media and the like through the WiFi module 102, and provides wireless broadband internet access for the user. Although fig. 1 shows the WiFi module 102, it is understood that it does not belong to the essential constitution of the mobile terminal, and may be omitted entirely as needed within the scope not changing the essence of the invention.

The audio output unit 103 may convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into an audio signal and output as sound when the mobile terminal 100 is in a call signal reception mode, a call mode, a recording mode, a voice recognition mode, a broadcast reception mode, or the like. Also, the audio output unit 103 may also provide audio output related to a specific function performed by the mobile terminal 100 (e.g., a call signal reception sound, a message reception sound, etc.). The audio output unit 103 may include a speaker, a buzzer, and the like.

The a/V input unit 104 is used to receive audio or video signals. The a/V input Unit 104 may include a Graphics Processing Unit (GPU) 1041 and a microphone 1042, the Graphics processor 1041 Processing image data of still pictures or video obtained by an image capturing device (e.g., a camera) in a video capturing mode or an image capturing mode. The processed image frames may be displayed on the display unit 106. The image frames processed by the graphic processor 1041 may be stored in the memory 109 (or other storage medium) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 may receive sounds (audio data) via the microphone 1042 in a phone call mode, a recording mode, a voice recognition mode, or the like, and may be capable of processing such sounds into audio data. The processed audio (voice) data may be converted into a format output transmittable to a mobile communication base station via the radio frequency unit 101 in case of a phone call mode. The microphone 1042 may implement various types of noise cancellation (or suppression) algorithms to cancel (or suppress) noise or interference generated in the course of receiving and transmitting audio signals.

The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor includes an ambient light sensor that can adjust the brightness of the display panel 1061 according to the brightness of ambient light, and a proximity sensor that can turn off the display panel 1061 and/or a backlight when the mobile terminal 100 is moved to the ear. As one of the motion sensors, the accelerometer sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when stationary, and can be used for applications of recognizing the posture of a mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a fingerprint sensor, a pressure sensor, an iris sensor, a molecular sensor, a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured on the mobile phone, further description is omitted here.

The display unit 106 is used to display information input by a user or information provided to the user. The Display unit 106 may include a Display panel 1061, and the Display panel 1061 may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like.

The user input unit 107 may be used to receive input numeric or character information and generate key signal inputs related to user settings and function control of the mobile terminal. Specifically, the user input unit 107 may include a touch panel 1071 and other input devices 1072. The touch panel 1071, also referred to as a touch screen, may collect a touch operation performed by a user on or near the touch panel 1071 (e.g., an operation performed by the user on or near the touch panel 1071 using a finger, a stylus, or any other suitable object or accessory), and drive a corresponding connection device according to a predetermined program. The touch panel 1071 may include two parts of a touch detection device and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 110, and can receive and execute commands sent by the processor 110. In addition, the touch panel 1071 may be implemented in various types, such as a resistive type, a capacitive type, an infrared ray, and a surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may include other input devices 1072. In particular, other input devices 1072 may include, but are not limited to, one or more of a physical keyboard, function keys (e.g., volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like, and are not limited to these specific examples.

Further, the touch panel 1071 may cover the display panel 1061, and when the touch panel 1071 detects a touch operation thereon or nearby, the touch panel 1071 transmits the touch operation to the processor 110 to determine the type of the touch event, and then the processor 110 provides a corresponding visual output on the display panel 1061 according to the type of the touch event. Although the touch panel 1071 and the display panel 1061 are shown in fig. 1 as two separate components to implement the input and output functions of the mobile terminal, in some embodiments, the touch panel 1071 and the display panel 1061 may be integrated to implement the input and output functions of the mobile terminal, and is not limited herein.

The interface unit 108 serves as an interface through which at least one external device is connected to the mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device having an identification module, an audio input/output (I/O) port, a video I/O port, an earphone port, and the like. The interface unit 108 may be used to receive input (e.g., data information, power, etc.) from external devices and transmit the received input to one or more elements within the mobile terminal 100 or may be used to transmit data between the mobile terminal 100 and external devices.

The memory 109 may be used to store software programs as well as various data. The memory 109 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the cellular phone, and the like. Further, the memory 109 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device.

The processor 110 is a control center of the mobile terminal, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by operating or executing software programs and/or modules stored in the memory 109 and calling data stored in the memory 109, thereby performing overall monitoring of the mobile terminal. Processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor, which mainly handles operating systems, user interfaces, application programs, etc., and a modem processor, which mainly handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 110.

The mobile terminal 100 may further include a power supply 111 (e.g., a battery) for supplying power to various components, and preferably, the power supply 111 may be logically connected to the processor 110 via a power management system, so as to manage charging, discharging, and power consumption management functions via the power management system.

Although not shown in fig. 1, the mobile terminal 100 may further include a bluetooth module or the like, which is not described in detail herein.

In order to facilitate understanding of the embodiments of the present invention, a communication network system on which the mobile terminal of the present invention is based is described below.

Referring to fig. 2, fig. 2 is an architecture diagram of a communication Network system according to an embodiment of the present invention, where the communication Network system is an LTE system of a universal mobile telecommunications technology, and the LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and an IP service 204 of an operator, which are in communication connection in sequence.

Specifically, the UE201 may be the terminal 100 described above, and is not described herein again.

The E-UTRAN202 includes eNodeB2021 and other eNodeBs 2022, among others. Among them, the eNodeB2021 may be connected with other eNodeB2022 through backhaul (e.g., X2 interface), the eNodeB2021 is connected to the EPC203, and the eNodeB2021 may provide the UE201 access to the EPC 203.

The EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving gateway) 2034, a PGW (PDN gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, and the like. The MME2031 is a control node that handles signaling between the UE201 and the EPC203, and provides bearer and connection management. HSS2032 is used to provide registers to manage functions such as home location register (not shown) and holds subscriber specific information about service characteristics, data rates, etc. All user data may be sent through SGW2034, PGW2035 may provide IP address assignment for UE201 and other functions, and PCRF2036 is a policy and charging control policy decision point for traffic data flow and IP bearer resources, which selects and provides available policy and charging control decisions for a policy and charging enforcement function (not shown).

The IP services 204 may include the internet, intranets, IMS (IP Multimedia Subsystem), or other IP services, among others.

Although the LTE system is described as an example, it should be understood by those skilled in the art that the present invention is not limited to the LTE system, but may also be applied to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems.

Based on the above mobile terminal hardware structure and communication network system, the present invention provides various embodiments of the method.

Example one

Fig. 3 is a circuit diagram of a first embodiment of the docking station identification detection circuit of the present invention. The present embodiment provides a docking station identification detection circuit, which includes: the detection circuit comprises a primary detection circuit, a switch circuit, a microcontroller and a secondary detection circuit, wherein the primary detection circuit is arranged on a terminal and comprises a Hall sensor, the switch circuit is connected with the primary detection circuit, the microcontroller is connected with the switch circuit, and the secondary detection circuit is arranged on a docking station, and when the terminal is plugged into the docking station, the secondary detection circuit is connected with the switch circuit. Specifically, taking a mobile phone as an example, in this embodiment, a primary detection circuit and a secondary detection circuit are provided in the mobile phone and the docking station, and the two mutually-matched circuit modules are used for detecting an insertion event of accessories such as the docking station. That is, only after a successful detection event by the primary detection circuit, the identification phase of the secondary detection circuit is turned on, that is, the working circuit is turned on at the docking station detection pin on the mobile phone at last, that is, the detection pin is configured to be an input high level. Therefore, the circuit scheme of the embodiment effectively solves the problem that voltage signals exist on the detection pins of the mobile phone in a normal state, and avoids the problem of electrochemical corrosion caused by micro short circuit between metal contacts of the mobile phone due to water immersion.

Optionally, in this embodiment, in the primary detection circuit, a logic output signal is detected by a magnetic flux of the hall sensor, and a gate terminal of the switch circuit and an operating state of the switch circuit are controlled by the logic output signal.

Optionally, in this embodiment, when the terminal is not close to the docking station, the hall sensor outputs a high level, the microcontroller outputs a high level to the switch circuit, the switch circuit is in a closed state, and the connection detection terminal connected to the switch circuit is at a low level.

Optionally, in this embodiment, when the terminal is close to the docking station, the hall sensor outputs a low level, the microcontroller outputs a high level to the switching circuit, the switching circuit is in an on state, the connection detection terminal is in a high level, and the connection state between the terminal and the docking station starts to be detected through the connection detection terminal.

Optionally, in this embodiment, a detection resistor is disposed in the secondary detection circuit, and after the detection of the connection state is started, the detection resistor is connected to the connection detection end.

Optionally, in this embodiment, the detection resistor is grounded, the connection detection terminal is pulled low to a low level, and the microcontroller identifies a connection event once it detects that the switching circuit is switched from the high level to the low level.

Optionally, in this embodiment, the microcontroller determines that the docking is valid according to the docking event, and initiates a communication connection between the terminal and the docking station.

Optionally, in this embodiment, the SWITCH circuit includes a P-type MOS transistor, an N-type MOS transistor, and a SWITCH circuit.

Alternatively, in the present embodiment, the circuit shown in fig. 3 is specifically described. The HALL sensor is arranged in the mobile phone and is positioned on the side surface or the back surface of the mobile phone; the output of the sensor is used for being provided to a P-MOS tube D2; the D2 is used for controlling the GPIO _ DOCK _ DET signal to be output to the metal contact pin; the magnetic flux detection logic output signal of the HALL sensor D1 controls the Gate end of D2, and the working state of D2 is controlled through magnetic flux detection; when no magnet is close to the Hall _ pole, the Hall _ pole outputs a high level VDD _ IO, and at this time, because GPIO _ DOCK _ DET is also a high level VDD _ IO voltage, VGS is 0, D2 is turned off, and DOCK _ DET is a low level; when a magnet is close to the Hall _ pole, Hall _ pole outputs low level, and at this time, because GPIO _ DOCK _ DET is a high level VDD _ IO voltage, VGS is-VDD _ IO, D2 is turned on and DOCK _ DET is high level, that is, secondary DOCK insertion identification detection is started. In this embodiment, after the primary identification detection is completed, the secondary identification detection is started, and since R1 in the DOCK comes down to GND, the DOCK _ DET signal is pulled low to a low level, and the AP/MCU detects that GPIO _ DOCK _ EN changes from a high level to a low level and recognizes an effective DOCK insert event, thereby determining that the DOCK insert event is effective; and then starting the communication connection of the DOCK, communicating electric signals on other DOCK POGO PIN, and initiating communication operation.

The embodiment has the advantages that by providing the docking station identification detection circuit, the docking station identification detection circuit comprises: the detection circuit comprises a primary detection circuit, a switch circuit, a microcontroller and a secondary detection circuit, wherein the primary detection circuit is arranged on a terminal and comprises a Hall sensor, the switch circuit is connected with the primary detection circuit, the microcontroller is connected with the switch circuit, and the secondary detection circuit is arranged on a docking station, and when the terminal is plugged into the docking station, the secondary detection circuit is connected with the switch circuit. The docking station identification detection scheme with better durability is realized, the problems that the detection pins are covered by liquid, the detection pins and other low-level metal contact points form micro short circuits, electrochemical action occurs, metal electrochemical corrosion is formed, and the metal contact points are oxidized and corroded are avoided, and the durability of the equipment functions is improved.

Example two

Fig. 4 is a contact schematic diagram of a second embodiment of the docking station identification detection circuit of the present invention, based on which optionally the contact surface of the terminal with the docking station is determined, on which the hall sensor is disposed.

Optionally, in this embodiment, taking a mobile phone as an example, the metal contact of the mobile phone may be on the back of the mobile phone or on the side of the mobile phone; fig. 4 shows the metal contact of the mobile phone on the back of the mobile phone, wherein the embodiment is composed of a hall sensor and an external metal contact inside the mobile phone; setting POGO PIN and a magnet at corresponding positions on a DOCK, wherein the Hall sensor corresponds to the magnet; the metal contacts correspond to POGO PIN. When the DOCK accessory is installed on the mobile phone shell, the intervention of the DOCK is automatically identified by the Hall sensor, and the circuit can start the work of the detection module of the DOCK _ DET inside the mobile phone.

The beneficial effect of this embodiment lies in, constitutes one-level detection circuitry through the inside hall sensor circuit that disposes of cell-phone, cooperates the DOCK detection circuitry of second grade, has solved the no voltage signal on the cell-phone contact point that DOCK POGO PIN corresponds better, has guaranteed that the cell-phone has not taken place the condition of electrochemical corrosion after the liquid gets into, has guaranteed the corrosion resistance of cell-phone.

EXAMPLE III

Based on the above embodiments, the present invention further provides a terminal device, which includes a docking station identification detection circuit implementing any one of the above embodiments.

It should be noted that the device embodiment and the circuit embodiment belong to the same concept, and specific implementation processes thereof are described in detail in the circuit embodiment, and technical features in the circuit embodiment are correspondingly applicable in the device embodiment, which is not described herein again.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.

Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal (such as a mobile phone, a computer, a server, an air conditioner, or a network device) to execute the method according to the embodiments of the present invention.

While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A docking station identification detection circuit, the circuit comprising: the detection circuit comprises a primary detection circuit, a switch circuit, a microcontroller and a secondary detection circuit, wherein the primary detection circuit is arranged on a terminal and comprises a Hall sensor, the switch circuit is connected with the primary detection circuit, the microcontroller is connected with the switch circuit, and the secondary detection circuit is arranged on a docking station, and when the terminal is plugged into the docking station, the secondary detection circuit is connected with the switch circuit.

2. The dock identification detection circuit of claim 1, wherein a contact surface of the terminal with the dock is determined, the hall sensor being disposed on the contact surface of the terminal.

3. The dock identification detection circuit of claim 2, wherein in the primary detection circuit, a logic output signal is detected by a magnetic flux of the hall sensor, and a gate terminal of the switch circuit and an operating state of the switch circuit are controlled by the logic output signal.

4. The dock identification detection circuit of claim 3, wherein the Hall sensor outputs a high level when the terminal is not proximate to the dock, the microcontroller outputs a high level to the switch circuit, the switch circuit is in an off state, and the docking detection terminal connected to the switch circuit is at a low level.

5. The dock identification detection circuit of claim 4, wherein when the terminal is near the dock, the Hall sensor outputs a low level, the microcontroller outputs a high level to the switch circuit, the switch circuit is in an ON state, the docking detection terminal is in a high level, and detection of the docking state of the terminal with the dock is initiated by the docking detection terminal.

6. The dock identification detection circuit of claim 5, wherein a detection resistor is disposed in the secondary detection circuit, the detection resistor being connected to the docking detection terminal when the docking state detection is enabled.

7. The dock identification detection circuit of claim 6, wherein the detection resistor is grounded, the docking detection terminal is pulled low to a low level, and the microcontroller identifies a docking event after detecting that the switch circuit is switched from a high level to a low level.

8. The dock identification detection circuit of claim 7, wherein the determination by the microcontroller of a docking event is valid docking and initiates a communication connection of the terminal with the dock.

9. The dock identification detection circuit of claim 8, wherein the SWITCH circuit comprises a P-type MOS transistor, an N-type MOS transistor, and a SWITCH circuit.

10. A terminal device characterized in that it comprises a docking station identification detection circuit implementing any of claims 1 to 9.