Explosion-proof intelligent communication terminal mainboard

Abstract

The utility model discloses an explosion-proof intelligent communication terminal mainboard, which comprises a processor module, the processor module is connected with a power supply module, the power supply module comprises a battery and an intelligent power supply management unit, and the intelligent power supply management unit is electrically connected with the processor module; the communication module comprises a WiFi module and a Bluetooth module, and the WiFi module and the Bluetooth module are respectively in communication connection with the processor module; the display module comprises a touch screen and a backlight assembly, the touch screen is in communication connection with the processor module through an MIPI interface, and the backlight assembly is electrically connected with the intelligent power management unit; and an emergency call module. A plurality of modules are integrated, so that the wireless connection capability of the equipment is enhanced; the display performance of the high-stability display module is improved and interference is reduced through an MIPI (Mobile Industry Processor Interface); and the emergency call module provides the capability of quickly responding to the emergency situation for the field staff.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of explosion -proof intelligent equipment, especially to an explosion -proof intelligent communication terminal mainboard. BACKGROUND

[0002] With the improvement of industrial production automation and intelligent level, the demand for portable intelligent equipment in dangerous environment is increasing, such as intrinsically safe explosion -proof equipment for data acquisition, identity authentication and information transmission. These devices not only need to meet the complex functional requirements, but also must strictly follow the design principle of intrinsic safety to ensure that the device will not cause spark or overheating and other dangerous conditions under fault conditions. However, the traditional intrinsically safe explosion -proof communication equipment will appear voltage supply fluctuation, resulting in damage of power module and single function when applied. SUMMARY

[0003] Therefore, the utility model provides an explosion -proof intelligent communication terminal mainboard, which can ensure the power stability of the power module and realize rich functions while realizing explosion -proof. The utility model provides the following technical scheme:

[0004] An explosion -proof intelligent communication terminal mainboard, comprising a processor module, the processor module is connected with: power module, including battery and intelligent power management unit, the intelligent power management unit is electrically connected with the processor module, to realize overcurrent protection, overvoltage protection and charging switch; communication module, including WiFi module and bluetooth module, the WiFi module and bluetooth module are respectively connected with the processor module in communication; display module, including touch screen and backlight assembly, the touch screen is connected with the processor module in communication through MIPI interface, the backlight assembly is electrically connected with the intelligent power management unit; emergency call module, including one -key alarm trigger unit connected with the processor module in communication.

[0005] Optionally, it further comprises: an audio module comprising an audio signal processing unit and a loudspeaker, the audio signal processing unit is connected with the processor module in communication through an I2S interface, and the loudspeaker is electrically connected with the intelligent power management unit.

[0006] Optionally, it further comprises: a camera module comprising a front camera and a rear camera, the front camera and the rear camera are respectively connected with the processor module in communication, and are also electrically connected with the intelligent power management unit.

[0007] Optionally, it further comprises: an NFC module comprising an NFC controller and an antenna, the NFC controller is connected with the processor module in communication through an I2C interface, and the antenna is connected with the NFC controller through a matching network.

[0008] Optionally, a current-limiting resistor and a TVS diode are arranged in the output line of the intelligent power management unit to realize voltage and power control; a protection isolation layer and a shielding layer are arranged in the line in which the MIPI interface is in communication connection with the processor module to reduce electrical interference and accidental short circuit risk; a voltage regulating diode and a high-speed switching diode are further included in the line in which the MIPI interface is in communication connection with the processor module to enhance the stability of the MIPI signal and reduce noise interference.

[0009] Optionally, the audio signal processing unit adopts an ES8388 audio codec, and the ES8388 audio codec is in communication connection with the processor module through an I2S interface to provide low-noise and high-fidelity audio signal output; the intelligent power management unit is electrically connected with the audio codec through a decoupling capacitor and a filter network to output voltage after power ripple suppression, and ensure the stability of audio processing.

[0010] Optionally, the intelligent power management unit includes a step-down DC-DC converter, and the output end of the DC-DC converter is connected to the front camera and the rear camera to realize power supply and fault current limiting and power-off.

[0011] According to the technical scheme of the utility model, the integrated intelligent power management unit provides overcurrent and overvoltage protection, ensures the safety of the power supply, the multi-mode communication module enhances the wireless connection capability of the equipment, the high-stability display module improves the display performance through the MIPI interface and reduces interference, the emergency call module provides the on-site staff with the capability of responding to emergency situations quickly, the high-quality audio processing module can maintain clear communication even in a noisy environment, the safe camera power supply design guarantees the stable operation of the camera module, and the addition of the NFC module enables the equipment to identify the identity and exchange information quickly. BRIEF DESCRIPTION OF DRAWINGS

[0012] For the purpose of illustration and not limitation, the utility model will be described in conjunction with the embodiments of the utility model and the drawings, in which:

[0013] Figure 1 Fig. 1 is a first part circuit structure schematic diagram of the processor module in the embodiments of the utility model;

[0014] Figure 2 Fig. 2 is a second part circuit structure schematic diagram of the processor module in the embodiments of the utility model;

[0015] Figure 3 Fig. 3 is a circuit structure schematic diagram of the display module in the embodiments of the utility model;

[0016] Figure 4is a circuit structure schematic diagram of the camera module in the embodiment of the utility model;

[0017] Figure 5 is a circuit structure schematic diagram of the audio module in the embodiment of the utility model;

[0018] Figure 6 is a circuit structure schematic diagram of the NFC module in the embodiment of the utility model. DETAILED DESCRIPTION

[0019] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0020] It should be noted that the terms "first", "second", and the like in the specification of the present application and the above drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0021] In the present application, the terms "up", "down", "left", "right", "front", "back", "top", "bottom", "in", "out", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0022] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms may also be used to indicate other meanings, for example, the term "up" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For the person skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances. In addition, the meaning of the term "a plurality of" should be two and more than two.

[0023] It should be noted that the features of the embodiments and the embodiments can be combined with each other in the case of no conflict. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0024] Reference Figures 1-6 The present embodiment discloses an explosion-proof intelligent communication terminal mainboard, comprising a processor module, the processor module of the present embodiment selects MT6762 to realize fast reading and writing of data and support LTE, WiFi and Bluetooth communication. A current-limiting resistor and a TVS diode are arranged in the output circuit of the intelligent power management unit to realize voltage and power control; a protection isolation layer and a shielding layer are arranged in the line for communication connection between the MIPI interface and the processor module to reduce electrical interference and accidental short circuit risk; a voltage regulating diode and a high-speed switching diode are further included in the line for communication connection between the MIPI interface and the processor module to enhance the stability of the MIPI signal and reduce noise interference. The processor module is connected with: a power module including a battery and an intelligent power management unit, the intelligent power management unit selects MT6357V / A, which is shown as U701-A in the figure, the intelligent power management unit is electrically connected with the processor module, and a current-limiting resistor, a decoupling capacitor C402 and a decoupling capacitor C403 are connected in the output circuit thereof to realize overcurrent protection, overvoltage protection and charging switching. A communication module including a WiFi module and a Bluetooth module, the WiFi module and the Bluetooth module are respectively in communication connection with the processor module; a display module including a touch screen and a backlight assembly, the touch screen is in communication connection with the processor module through the MIPI interface, and the backlight assembly is electrically connected with the intelligent power management unit; an emergency call module including a one-key alarm triggering unit in communication connection with the processor module.

[0025] Reference Figure 5The mainboard further comprises an audio module, including an audio signal processing unit and a speaker, the audio signal processing unit adopts an ES8388 audio codec, shown as U1902 in the figure, the ES8388 audio codec is in communication connection with the processor module through an I2S interface, to provide low-noise and high-fidelity audio signal output. Specifically, the AVDD pin of the audio codec is an analog power supply pin, connected to the power output pin of the power management unit, the DVDD pin is a digital power supply pin, connected to the power output pin of the power management unit, to provide power supply for the digital part of the ES8388. The audio codec further comprises input and output pins, the output pin HP_L / HP_R is connected to an external earphone amplifier to realize audio output, and the input pin AU_VIN0_P / N is connected to a microphone or other audio input device. The smart power management unit is electrically connected with the audio codec through a decoupling capacitor and a filter network, to output voltage after suppression of power ripples, ensuring the stability of audio processing. The audio signal processing unit is in communication connection with the processor module through an I2S interface, and the speaker is electrically connected with the smart power management unit.

[0026] Reference Figure 4 The mainboard further comprises a camera module, including a front camera and a rear camera, the front camera and the rear camera are respectively in communication connection with the processor module, and are further electrically connected with the smart power management unit. The smart power management unit comprises a step-down DC-DC converter, shown as U2010 in the figure, the output end of the DC-DC converter is connected to the front camera and the rear camera, to realize power supply and fault current limiting and power-off. Among them, the input pin VIN of the DC-DC converter is connected to the battery VBAT, the output pin VOUT is connected to the front camera and the rear camera, and the enable pin EN is connected to the processor module, to realize control of opening and closing of the DC-DC converter. The input and output lines of the DC-DC converter are further provided with an inductor and a capacitor for filtering high-frequency noise and smoothing the output voltage.

[0027] Reference Figure 6The mainboard further comprises an NFC module, including an NFC controller and an antenna, the NFC controller being PN557, shown as U1704 in the figure, the NFC controller being in communication connection with the processor module through an I2C interface, and the antenna being connected with the NFC controller through a matching network. Among them, the NFC CLK_XTAL1 and NFC CLK_XTAL2 pins of the NFC controller are connected to the clock of the NFC module to provide a clock signal, and the HIF2, HIF3, and HIF4 pins are connected to the processor module to communicate data. The power supply pin VDD of the NFC controller is connected to the intelligent power management unit to realize voltage acquisition. Further, the F3 NFC_GPIO_2, C5 ESE_SPI_CLK, C4 ESE_SPI_MISO, and F4 ESE_ISO_IO pins are connected to the corresponding GPIO and SPI pins of the processor module.

[0028] In summary, the technical scheme integrates a high-performance MT6762-SBS processor module, an MT6357V / A power management unit, an ES8388 audio codec, a step-down DC-DC converter, a U1704 NFC module, and a high-definition display and emergency call module, thereby constructing an efficient, stable, and safe intelligent communication terminal mainboard. The terminal mainboard not only provides high-quality audio output and high-definition display effects, but also realizes convenient wireless communication and rapid response in emergency situations. The overcurrent protection and overvoltage protection functions of the power management unit improve the safety of the system, and the efficient power conversion and protection mechanism of the DC-DC converter ensure the stable operation of the camera module. In addition, the non-contact communication capability of the NFC module further enhances the convenience and practicality of the device. Overall, this technical scheme meets the complex needs in industrial applications.

[0029] The above detailed description does not constitute a limitation on the protection scope of the present application. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can occur depending on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An explosion-proof intelligent communication terminal mainboard, comprising a processor module, characterized in that, The processor module is connected with: a power module including a battery and an intelligent power management unit, the intelligent power management unit being electrically connected with the processor module to realize overcurrent protection, overvoltage protection and charging switching; a communication module including a WiFi module and a Bluetooth module, the WiFi module and the Bluetooth module being respectively in communication connection with the processor module; a display module including a touch screen and a backlight assembly, the touch screen being in communication connection with the processor module through a MIPI interface, and the backlight assembly being electrically connected with the intelligent power management unit; an emergency call module including a one-key alarm triggering unit in communication connection with the processor module.

2. The explosion-proof intelligent communication terminal mainboard according to claim 1, characterized in that, Further comprising: an audio module including an audio signal processing unit and a loudspeaker, the audio signal processing unit being in communication connection with the processor module through an I2S interface, and the loudspeaker being electrically connected with the intelligent power management unit.

3. The explosion-proof intelligent communication terminal mainboard according to claim 1, characterized in that, Further comprising: a camera module including a front camera and a rear camera, the front camera and the rear camera being respectively in communication connection with the processor module and further electrically connected with the intelligent power management unit.

4. The explosion-proof intelligent communication terminal mainboard according to claim 1, characterized in that, Further comprising: an NFC module including an NFC controller and an antenna, the NFC controller being in communication connection with the processor module through an I2C interface, and the antenna being connected with the NFC controller through a matching network.

5. The explosion-proof intelligent communication terminal mainboard according to claim 1, characterized in that, A current-limiting resistor and a TVS diode are arranged in an output circuit of the intelligent power management unit to realize voltage and power control; A protection isolation layer and a shielding layer are arranged in a circuit in which the MIPI interface is in communication connection with the processor module to reduce electrical interference and accidental short circuit risk; A voltage regulating diode and a high-speed switching diode are further included in the circuit in which the MIPI interface is in communication connection with the processor module to enhance the stability of MIPI signal and reduce noise interference.

6. The explosion-proof intelligent communication terminal mainboard according to claim 2, characterized in that, The audio signal processing unit adopts an ES8388 audio codec, the ES8388 audio codec being in communication connection with the processor module through an I2S interface to provide low-noise and high-fidelity audio signal output; The intelligent power management unit is electrically connected with the audio codec through a decoupling capacitor and a filter network to output voltage after suppression of power ripples, ensuring the stability of audio processing.

7. The explosion-proof intelligent communication terminal mainboard according to claim 3, characterized in that, The intelligent power management unit includes a step-down DC-DC converter, an output end of the DC-DC converter being connected to the front camera and the rear camera to realize power supply and fault current limiting and power-off.

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